:root{--bg:#07090d;--bg2:#0d1015;--panel:#0f141b;--panel2:#121922;--card:#121821;--line:#27313d;--line2:#323d4a;--text:#f1f5f8;--muted:#8b96a4;--red:#ff3b31;--red2:#ff6543;--redSoft:rgba(255,59,49,.12);--shadow:0 20px 60px rgba(0,0,0,.35);--radius:20px;}
body.light{--bg:#f3f6f9;--bg2:#ffffff;--panel:#ffffff;--panel2:#f6f8fb;--card:#ffffff;--line:#dae1ea;--line2:#c8d1dc;--text:#101722;--muted:#667180;--red:#e9312b;--red2:#ff5c42;--redSoft:rgba(233,49,43,.08);--shadow:0 16px 46px rgba(22,40,62,.08);}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Inter,Arial,Helvetica,sans-serif;background:radial-gradient(circle at 20% 0%,rgba(255,59,49,.08),transparent 24%),linear-gradient(180deg,var(--bg),var(--bg2));color:var(--text);overflow-x:hidden;transition:background .3s,color .3s} a{color:inherit;text-decoration:none} button,input,textarea{font:inherit} button{cursor:pointer} img{display:block;max-width:100%}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.03;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");z-index:999}
.page{min-height:100vh}
.topbar{position:sticky;top:0;z-index:50;height:76px;padding:0 20px;display:grid;grid-template-columns:minmax(220px,1fr) auto auto;align-items:center;gap:14px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(16px)}
.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand-logo{display:block;height:auto;max-width:100%}.brand-full{width:230px}.brand-full.small{width:168px}.brand-full.tiny{width:148px}.brand-stack{display:flex;flex-direction:column;gap:2px;min-width:0}.brand small{display:block;color:var(--muted);font-size:9px;letter-spacing:.18em;text-transform:uppercase}.brand-icon-wrap{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(180deg,var(--redSoft),transparent);border:1px solid var(--line);box-shadow:var(--shadow)}.brand-icon{width:26px;height:26px;display:block}
.topbar-tools{display:flex;align-items:center;gap:10px;justify-self:end}
.theme-btn,.cta-btn,.top-auth-btn{height:48px;border-radius:16px;border:1px solid var(--line);background:var(--panel);padding:0 16px;color:var(--text);transition:.18s;box-shadow:var(--shadow)} .cta-btn{background:linear-gradient(180deg,var(--red),var(--red2));border-color:transparent;color:#fff;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase} .top-auth-btn{justify-self:end;background:transparent;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase} .theme-btn:hover,.cta-btn:hover,.top-auth-btn:hover{transform:translateY(-2px)}
.hero{min-height:calc(100vh - 76px);padding:0;display:block;position:relative;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:0;background:#07090d}.hero-bg video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:70% center;filter:saturate(.97) contrast(1.03) brightness(.92);background:#080b10}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,8,13,.94) 0%,rgba(5,8,13,.88) 18%,rgba(5,8,13,.73) 34%,rgba(5,8,13,.42) 55%,rgba(5,8,13,.2) 74%,rgba(5,8,13,.12) 100%),linear-gradient(180deg,rgba(5,8,13,.52),rgba(5,8,13,.08) 20%,rgba(5,8,13,.36) 100%)}
.hero-content{position:relative;z-index:3;min-height:calc(100vh - 76px);padding:44px 28px 40px;display:grid;grid-template-columns:minmax(0,720px) 1fr;gap:28px;align-items:stretch}.hero-copy{display:flex;flex-direction:column;justify-content:center;padding:36px 8px 36px 8px;position:relative;z-index:3;max-width:700px}.hero-side{position:relative;min-height:100%}
.eyebrow{display:flex;align-items:center;gap:12px;color:#b5bfcc;font-size:10px;letter-spacing:.22em;text-transform:uppercase}.eyebrow::before{content:"";width:32px;height:1px;background:var(--red)}
.hero h1{margin:22px 0 18px;font-family:Arial Narrow,Arial,sans-serif;font-size:clamp(66px,7vw,118px);line-height:.84;letter-spacing:-.06em;text-transform:uppercase;max-width:760px}.hero p{margin:0;max-width:620px;color:#c2cbd7;font-size:17px;line-height:1.72;border-left:2px solid var(--red);padding-left:18px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px} .btn{min-height:56px;padding:0 22px;border-radius:18px;border:1px solid rgba(255,255,255,.12);background:rgba(15,20,27,.68);display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--text);box-shadow:var(--shadow);transition:.2s;backdrop-filter:blur(10px)} .btn.primary{background:linear-gradient(180deg,var(--red),var(--red2));border-color:transparent;color:#fff} .btn:hover{transform:translateY(-2px)}
.hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:38px;max-width:820px} .point{padding:18px;border-radius:20px;background:linear-gradient(180deg,rgba(15,20,27,.72),rgba(18,25,34,.6));border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow);backdrop-filter:blur(10px)} .point b{display:block;font-family:Arial Narrow,Arial,sans-serif;font-size:30px} .point span{display:block;color:#b5bfcc;font-size:10px;letter-spacing:.12em;text-transform:uppercase;margin-top:4px}
.hud{position:absolute;z-index:4;border:1px solid rgba(255,255,255,.1);background:rgba(10,14,20,.52);backdrop-filter:blur(12px);border-radius:18px;box-shadow:var(--shadow);padding:16px} body.light .hud{background:rgba(255,255,255,.8)} .hud.top{right:clamp(22px,4vw,58px);top:clamp(24px,7vh,82px);width:190px} .hud.bottom{right:clamp(22px,4vw,58px);bottom:32px;width:280px} .hud h3{margin:0 0 10px;font-size:12px;letter-spacing:.14em;text-transform:uppercase} .hud-row{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-top:1px solid rgba(255,255,255,.08);font-size:11px;color:var(--muted)} .hud-row:first-of-type{border-top:0} .hud-row b{color:var(--text)}
.section{padding:34px 28px 70px} .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:10px} .card{padding:24px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,var(--panel),var(--panel2));box-shadow:var(--shadow)} .card small{display:block;color:var(--red);font-size:10px;letter-spacing:.16em;text-transform:uppercase} .card b{display:block;font-size:26px;font-family:Arial Narrow,Arial,sans-serif;text-transform:uppercase;margin:10px 0 8px} .card p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
.footer{padding:24px 28px 36px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:10px;letter-spacing:.12em;text-transform:uppercase}

/* Chat */
.chat-app{display:none;min-height:100vh;background:var(--bg)} .chat-app.active{display:block} .chat-layout{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.sidebar{background:linear-gradient(180deg,var(--panel),var(--panel2));border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:100vh} .side-top{padding:18px;border-bottom:1px solid var(--line)} .side-row{display:flex;align-items:center;justify-content:space-between;gap:12px} .mini-btn{height:42px;padding:0 14px;border-radius:14px;border:1px solid var(--line);background:var(--card);color:var(--text)} .new-chat{width:100%;margin-top:14px;height:50px;border-radius:16px;border:1px solid var(--line);background:linear-gradient(180deg,var(--card),var(--panel2));color:var(--text);font-weight:700}
.search{margin-top:14px;display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:var(--card);border-radius:14px;padding:0 14px} .search input{width:100%;height:44px;border:0;outline:0;background:transparent;color:var(--text)} .history{padding:16px;overflow:auto;display:grid;gap:10px} .hist{padding:14px 15px;border-radius:16px;border:1px solid var(--line);background:var(--card);cursor:pointer;transition:.16s} .hist:hover,.hist.active{border-color:color-mix(in srgb,var(--red) 45%,var(--line));transform:translateY(-1px)} .hist b{display:block;font-size:14px;margin-bottom:6px} .hist span{display:block;color:var(--muted);font-size:12px;line-height:1.45}
.account{margin-top:auto;padding:16px;border-top:1px solid var(--line)} .account-box{display:grid;grid-template-columns:46px 1fr;gap:12px;padding:14px;border-radius:16px;border:1px solid var(--line);background:var(--card);cursor:pointer} .avatar{width:46px;height:46px;border-radius:14px;background:linear-gradient(180deg,var(--redSoft),transparent);border:1px solid var(--line);display:grid;place-items:center;padding:9px}.avatar img{width:100%;height:100%;object-fit:contain}
.main{display:flex;flex-direction:column;min-width:0;height:100vh;position:relative} .chat-head{height:72px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px)} .chat-head b{display:block;font-size:16px} .chat-head span{display:block;color:var(--muted);font-size:12px;margin-top:3px} .head-actions{display:flex;gap:10px}
.scroll{flex:1;overflow:auto;padding:24px 22px 160px} .conversation{max-width:900px;margin:0 auto} .empty{min-height:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:50px 0} .empty-logo{width:74px;height:74px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,var(--redSoft),transparent);box-shadow:var(--shadow);padding:14px;display:grid;place-items:center}.empty-logo img{width:100%;height:100%;object-fit:contain} .empty h2{margin:18px 0 12px;font-family:Arial Narrow,Arial,sans-serif;font-size:54px;line-height:.9;text-transform:uppercase} .empty p{max-width:620px;margin:0;color:var(--muted);font-size:16px;line-height:1.72} .quick-prompts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px;width:min(760px,100%)} .qp{text-align:left;padding:16px 18px;border-radius:16px;border:1px solid var(--line);background:linear-gradient(180deg,var(--card),var(--panel2));color:var(--text);transition:.16s} .qp:hover{transform:translateY(-1px);border-color:color-mix(in srgb,var(--red) 45%,var(--line))}
.msg{display:grid;grid-template-columns:46px 1fr;gap:14px;max-width:900px;margin:0 auto 22px} .msg-avatar{width:46px;height:46px;border-radius:14px;border:1px solid var(--line);display:grid;place-items:center;background:linear-gradient(180deg,var(--redSoft),transparent);font-weight:800} .msg-body{padding:16px 18px;border-radius:18px;border:1px solid var(--line);background:linear-gradient(180deg,var(--panel),var(--panel2));box-shadow:var(--shadow)} .msg-name{font-size:12px;font-weight:700;margin-bottom:10px;color:var(--text)} .msg-text{white-space:pre-wrap;font-size:16px;line-height:1.72} .msg-meta{margin-top:10px;display:flex;gap:8px;flex-wrap:wrap} .msg-action{height:34px;padding:0 12px;border-radius:12px;border:1px solid var(--line);background:var(--card);color:var(--muted)} .typing{display:inline-flex;gap:6px;align-items:center;padding:4px 0} .typing i{width:8px;height:8px;border-radius:50%;background:var(--red);opacity:.25;animation:dot 1.2s infinite} .typing i:nth-child(2){animation-delay:.2s} .typing i:nth-child(3){animation-delay:.4s}
.composer-shell{position:fixed;left:280px;right:0;bottom:0;padding:16px 22px 20px;background:linear-gradient(180deg,transparent, color-mix(in srgb,var(--bg) 94%,transparent) 18%);pointer-events:none} .composer-wrap{max-width:900px;margin:0 auto;pointer-events:auto} .sub-banner{margin-bottom:12px;padding:16px 18px;border-radius:18px;border:1px solid rgba(255,59,49,.22);background:linear-gradient(180deg,rgba(255,59,49,.12),rgba(255,59,49,.06));display:flex;justify-content:space-between;gap:14px;align-items:center;box-shadow:var(--shadow)} .sub-banner b{display:block;font-size:14px} .sub-banner span{display:block;color:var(--muted);font-size:12px;margin-top:4px} .banner-actions{display:flex;gap:10px;flex-wrap:wrap}
.composer{border:1px solid var(--line);background:linear-gradient(180deg,var(--panel),var(--panel2));border-radius:22px;box-shadow:var(--shadow);overflow:hidden} .composer textarea{width:100%;height:120px;border:0;outline:0;resize:none;background:transparent;color:var(--text);padding:18px 18px 12px;font-size:16px;line-height:1.6} .composer-bottom{display:flex;justify-content:space-between;gap:16px;align-items:flex-end;padding:0 16px 16px} .composer-left{display:flex;flex-direction:column;gap:12px} .model-picker{position:relative;display:inline-block} .model-btn{height:44px;padding:0 14px;border-radius:14px;border:1px solid var(--line);background:var(--card);display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;color:var(--text)} .dot{width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 10px rgba(255,59,49,.45)} .model-menu{position:absolute;left:0;bottom:54px;width:220px;border:1px solid var(--line);background:var(--panel);border-radius:18px;box-shadow:var(--shadow);padding:8px;display:none} .model-menu.open{display:block} .model-item{display:grid;grid-template-columns:10px 1fr auto;gap:10px;align-items:center;padding:12px 12px;border-radius:12px;cursor:pointer} .model-item:hover,.model-item.active{background:var(--redSoft)} .model-item span{font-size:12px;color:var(--muted)}
.left-tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap} .file-chip{display:none;align-items:center;gap:8px;padding:8px 10px;border-radius:999px;border:1px solid var(--line);background:var(--card);font-size:12px;color:var(--muted)} .file-chip.show{display:inline-flex} .send-btn{min-width:150px;height:56px;border:0;border-radius:18px;background:linear-gradient(180deg,var(--red),var(--red2));color:#fff;font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;box-shadow:var(--shadow)} .send-btn.stop{background:linear-gradient(180deg,#4b5968,#2b3642)} .hint{font-size:12px;color:var(--muted);max-width:240px;line-height:1.5}
.drawer{position:fixed;top:0;right:-380px;width:360px;bottom:0;background:linear-gradient(180deg,var(--panel),var(--panel2));border-left:1px solid var(--line);box-shadow:var(--shadow);transition:right .22s;z-index:60;padding:18px;display:flex;flex-direction:column} .drawer.open{right:0} .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px} .drawer h3{margin:0;font-size:22px;font-family:Arial Narrow,Arial,sans-serif;text-transform:uppercase} .setting,.plan{padding:16px;border-radius:18px;border:1px solid var(--line);background:var(--card);margin-bottom:12px} .setting b,.plan b{display:block;font-size:14px;margin-bottom:5px} .setting span,.plan span{display:block;color:var(--muted);font-size:12px;line-height:1.55} .switch{width:46px;height:26px;position:relative;display:inline-block} .switch input{display:none} .switch i{position:absolute;inset:0;border-radius:999px;border:1px solid var(--line);background:var(--panel2)} .switch i::before{content:"";position:absolute;width:18px;height:18px;left:4px;top:3px;border-radius:50%;background:#7b8592;transition:.18s} .switch input:checked+i{background:var(--redSoft)} .switch input:checked+i::before{left:22px;background:var(--red)}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.52);backdrop-filter:blur(8px);display:none;place-items:center;padding:20px;z-index:70} .overlay.open{display:grid} .paywall{width:min(980px,100%);border-radius:28px;border:1px solid var(--line);background:linear-gradient(180deg,var(--panel),var(--panel2));box-shadow:var(--shadow);padding:24px} .paywall h2{margin:8px 0 10px;font-size:56px;line-height:.9;font-family:Arial Narrow,Arial,sans-serif;text-transform:uppercase} .paywall p{margin:0;max-width:720px;color:var(--muted);font-size:15px;line-height:1.7} .plans{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px} .plan{margin:0} .plan.featured{border-color:rgba(255,59,49,.28)} .plan h4{margin:10px 0 4px;font-size:30px;font-family:Arial Narrow,Arial,sans-serif;text-transform:uppercase} .price{font-size:26px;font-weight:800} .quota{font-size:16px;font-weight:700;margin-top:12px} .plan-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.toast{position:fixed;left:50%;bottom:128px;transform:translateX(-50%);padding:12px 16px;border-radius:12px;background:#151c25;color:#fff;border:1px solid var(--line);box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.18s;z-index:90} .toast.show{opacity:1}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease, transform .55s ease} .reveal.visible{opacity:1;transform:none}
@keyframes eyePulse{0%,100%{transform:scale(1);opacity:.82}50%{transform:scale(1.22);opacity:1}} @keyframes dot{0%,80%,100%{opacity:.22;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}
.sub-logo{width:160px;max-width:100%;display:block;margin:0 0 6px}.paywall-brand{margin-bottom:10px}.account-brand{display:flex;align-items:center;gap:12px}.brand-textline{font-size:13px;font-weight:800;letter-spacing:.08em}.brand-textline small{display:block;font-size:11px;color:var(--muted);font-weight:500;letter-spacing:0}.topbar .brand{overflow:hidden}.side-top .brand{overflow:hidden}@media (max-width:760px){.brand-full{width:170px}.brand-full.small{width:144px}.brand-full.tiny{width:132px}.topbar .brand small{display:none}}
@media (max-width:1100px){.hero-content{grid-template-columns:1fr;padding:34px 22px 34px;min-height:calc(100vh - 76px)} .hero-copy{max-width:640px} .hero-bg video{object-position:64% center} .hud.top{top:96px;right:22px} .hud.bottom{right:22px;bottom:22px} .cards,.plans{grid-template-columns:1fr} .topbar{grid-template-columns:1fr auto} .topbar-tools{justify-self:end} .composer-shell{left:0} .chat-layout{grid-template-columns:1fr} .sidebar{display:none} .scroll{padding-bottom:180px} }
@media (max-width:760px){.topbar{padding:0 12px;height:68px} .hero-content{padding:20px 14px 24px;min-height:calc(100vh - 68px)} .hero-copy{padding:18px 2px;justify-content:flex-end} .hero h1{font-size:58px;max-width:520px} .hero p{font-size:15px;max-width:450px} .hero-bg video{object-position:70% center} .hero-points,.quick-prompts{grid-template-columns:1fr} .point{padding:16px} .hud.top{top:84px;right:14px;width:164px;padding:12px} .hud.bottom{left:14px;right:14px;bottom:18px;width:auto;padding:14px} .section{padding:22px 14px 50px} .empty h2{font-size:42px} .quick-prompts{width:100%} .scroll{padding:18px 14px 210px} .composer-shell{padding:10px 14px 14px} .composer textarea{height:110px} .composer-bottom{flex-direction:column;align-items:stretch} .send-btn{width:100%} .paywall h2{font-size:40px} }

/* Stage 11E — responsive/chat/readability fixes */
body.light{--bg:#f5f7fa;--bg2:#eef2f6;--panel:#ffffff;--panel2:#f7f9fb;--card:#ffffff;--line:#cfd7e2;--line2:#b9c4d1;--text:#0b1220;--muted:#526071;--red:#d92f29;--red2:#ee4d38;--redSoft:rgba(217,47,41,.10);--shadow:0 16px 44px rgba(22,40,62,.10)}
body.light .topbar{background:rgba(250,252,254,.94);border-color:#d5dce5}
body.light .nav,body.light .brand small{color:#536174}
body.light .theme-btn{background:#fff;color:#111827;border-color:#cbd5e1}
body.light .card,body.light .sidebar,body.light .composer,body.light .drawer,body.light .paywall{box-shadow:0 14px 38px rgba(30,48,70,.08)}
body.light input::placeholder,body.light textarea::placeholder{color:#6b7788;opacity:1}

/* Hero always remains a dark cinematic surface, even when the UI theme is light. */
.hero-content{color:#f4f7fb}
.hero .eyebrow{color:#c4ceda}
.hero h1{color:#f7f9fc}
.hero p{color:#cbd4df}
.hero .btn:not(.primary){background:rgba(10,14,20,.66);border-color:rgba(255,255,255,.18);color:#f7f9fc}
.hero .point{color:#f7f9fc}
.hero .point span{color:#bdc7d3}
.hero .hud,body.light .hero .hud{background:rgba(10,14,20,.62);color:#f4f7fb;border-color:rgba(255,255,255,.12)}
.hero .hud-row,body.light .hero .hud-row{color:#aeb9c6;border-color:rgba(255,255,255,.09)}
.hero .hud-row b,body.light .hero .hud-row b{color:#f4f7fb}
.eyebrow{color:var(--muted)}

/* Generic buttons must respect the current theme; hero gets its own dark glass style above. */
.btn{border-color:var(--line);background:linear-gradient(180deg,var(--panel),var(--panel2));color:var(--text);backdrop-filter:none}
.btn.primary{background:linear-gradient(180deg,var(--red),var(--red2));border-color:transparent;color:#fff}

/* Chat layout: the composer is a real bottom row of the viewport instead of floating over content. */
.chat-layout{grid-template-columns:292px minmax(0,1fr);height:100dvh;min-height:0;overflow:hidden}
.sidebar{min-height:0;height:100dvh;overflow:hidden}
.history{min-height:0;flex:1}
.main{height:100dvh;min-height:0;overflow:hidden}
.chat-head{flex:0 0 72px;min-width:0;gap:14px;position:relative;z-index:5}
.chat-title{min-width:0;flex:1}
.chat-title b,.chat-title span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.head-actions{flex:0 0 auto}
.settings-icon{display:none}
.mobile-chat-back{display:none;flex:0 0 auto}
.side-row{min-width:0}
.sidebar-brand{flex:1 1 auto;min-width:0;overflow:hidden}
.sidebar-brand .brand-full.small{width:148px;max-width:100%}
.side-back{flex:0 0 44px;width:44px;padding:0;display:grid;place-items:center}
.scroll{min-height:0;flex:1;padding:24px 22px;overscroll-behavior:contain}
.conversation{min-height:100%}
.composer-shell{position:relative;left:auto;right:auto;bottom:auto;flex:0 0 auto;padding:12px 22px 18px;background:linear-gradient(180deg,color-mix(in srgb,var(--bg) 72%,transparent),var(--bg) 28%);pointer-events:auto;z-index:8}
.composer-wrap{width:min(900px,100%)}
.composer textarea{min-height:92px;height:clamp(92px,15vh,120px)}
.model-menu{z-index:30}

/* Better light-theme contrast for secondary surfaces. */
body.light .sub-banner{background:linear-gradient(180deg,rgba(217,47,41,.10),rgba(217,47,41,.045));border-color:rgba(217,47,41,.30)}
body.light .model-menu{background:#fff}
body.light .msg-body,body.light .qp,body.light .hist,body.light .new-chat,body.light .account-box,body.light .model-btn,body.light .mini-btn{color:#111827}
body.light .msg-text{color:#172033}
body.light .overlay{background:rgba(15,23,42,.34)}
body.light .paywall p,body.light .plan span,body.light .setting span,body.light .sub-banner span{color:#526071}
body.light .toast{background:#111827;color:#fff;border-color:#273449}
body.light .card small{color:#b8201b;font-weight:800}

/* Paywall must scroll instead of colliding with the viewport on smaller screens. */
.overlay{overflow-y:auto;align-items:start;justify-items:center}
.overlay.open{display:grid}
.paywall{margin:clamp(18px,5vh,56px) auto;max-height:none}

@media (max-width:1100px){
  .chat-layout{grid-template-columns:1fr}
  .sidebar{display:none}
  .mobile-chat-back{display:inline-flex;align-items:center;gap:6px}
  .composer-shell{left:auto;padding:12px 18px 16px}
  .scroll{padding:22px 18px}
  .chat-head{padding:0 18px}
}
@media (max-width:760px){
  .topbar{grid-template-columns:minmax(0,1fr) auto;gap:8px}
  .topbar .theme-btn{width:44px;padding:0;font-size:0}
  .topbar .theme-btn::before{content:"◐";font-size:18px}
  .topbar-tools{gap:8px}.topbar .cta-btn{padding:0 13px;white-space:nowrap}.top-auth-btn{padding:0 12px}
  .brand-full{width:min(150px,42vw)}
  .hero-content{padding:20px 14px 28px}
  .hero-copy{justify-content:center;padding:22px 2px;max-width:100%}
  .hero h1{font-size:clamp(46px,14vw,64px);line-height:.88}
  .hero p{font-size:14px;line-height:1.58;max-width:92%}
  .hero-actions{gap:10px}.hero-actions .btn{min-height:50px;padding:0 16px;font-size:10px}
  .hero-points{margin-top:24px;gap:9px}.point{padding:14px}.point b{font-size:26px}
  .hud{display:none}

  .chat-head{height:auto;min-height:66px;flex-basis:66px;padding:8px 10px;gap:8px}
  .mobile-chat-back{height:42px;padding:0 10px}
  .mobile-chat-back span{display:none}
  .chat-title b{font-size:14px}.chat-title span{font-size:10px}
  .settings-btn{width:42px;padding:0;display:grid;place-items:center}.settings-label{display:none}.settings-icon{display:inline;font-size:17px}
  .scroll{padding:16px 12px}
  .empty{padding:30px 0}.empty h2{font-size:40px}.empty p{font-size:14px;line-height:1.55}
  .quick-prompts{grid-template-columns:1fr;gap:8px;margin-top:18px}.qp{padding:13px 14px}
  .msg{grid-template-columns:36px minmax(0,1fr);gap:9px;margin-bottom:14px}.msg-avatar{width:36px;height:36px;border-radius:11px;font-size:11px}.msg-body{padding:13px 14px}.msg-text{font-size:14px;line-height:1.58}

  .composer-shell{padding:8px 10px calc(10px + env(safe-area-inset-bottom));background:var(--bg)}
  .sub-banner{padding:11px 12px;margin-bottom:8px;gap:8px;align-items:flex-start}.sub-banner span{font-size:11px}.banner-actions{gap:6px}.banner-actions .mini-btn{height:36px;padding:0 10px;font-size:11px}
  .composer{border-radius:18px}.composer textarea{height:78px;min-height:78px;padding:13px 13px 8px;font-size:15px}
  .composer-bottom{padding:0 10px 10px;gap:8px;align-items:center;flex-direction:row}
  .composer-left{min-width:0;flex:1;gap:7px}.left-tools{gap:6px}.hint{display:none}.file-chip{max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .model-btn{height:40px;padding:0 11px}.send-btn{width:auto;min-width:104px;height:44px;border-radius:14px;font-size:11px;padding:0 12px}
  .model-menu{bottom:48px;width:min(220px,calc(100vw - 32px))}

  .overlay{padding:10px}.paywall{padding:18px;border-radius:22px;margin:10px auto 24px}.paywall h2{font-size:38px}.paywall p{font-size:13px;line-height:1.55}.plans{gap:10px;margin-top:16px}.plan{padding:14px}.plan h4{font-size:26px}.price{font-size:22px}.quota{font-size:14px}.plan-actions{margin-top:12px}.plan-actions .btn{min-height:48px;width:100%;justify-content:center}
  .drawer{width:min(360px,100vw)}
}
@media (max-width:420px){
  .topbar .cta-btn{font-size:9px;letter-spacing:.08em;padding:0 10px}
  .brand-full{width:128px}
  .hero h1{font-size:43px}
  .hero-points{grid-template-columns:1fr}
  .composer-bottom{align-items:flex-end}.send-btn{min-width:96px}.left-tools .mini-btn{height:36px;padding:0 9px}
  .sub-banner{flex-direction:column}.banner-actions{width:100%}.banner-actions .mini-btn{flex:1}
}

/* Stage 11F — chat polish, overlap fixes, readable branding, weighted-credit UI */
.brand-lockup{display:inline-flex;align-items:center;gap:10px;min-width:0;color:var(--text)}
.brand-icon-shell{width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;border-radius:12px;background:radial-gradient(circle at 50% 45%,rgba(255,59,49,.18),rgba(255,255,255,.035) 55%,transparent 72%);border:1px solid color-mix(in srgb,var(--line) 82%,#fff 18%);box-shadow:inset 0 0 18px rgba(255,59,49,.06)}
.brand-icon-shell img{width:29px;height:29px;object-fit:contain;filter:drop-shadow(0 0 8px rgba(255,59,49,.18))}
.brand-icon-shell.compact{width:34px;height:34px;flex-basis:34px;border-radius:11px}.brand-icon-shell.compact img{width:26px;height:26px}
.brand-copy{display:flex;min-width:0;flex-direction:column;gap:1px}.brand-wordmark{white-space:nowrap;font-family:Arial Narrow,Arial,sans-serif;font-size:25px;line-height:1;font-weight:900;letter-spacing:-.045em;color:#f5f7fa;text-shadow:0 1px 0 rgba(255,255,255,.08)}
.brand-wordmark>span{color:var(--red);text-shadow:0 0 13px rgba(255,59,49,.2)}.compact-wordmark{font-size:21px}
body.light .brand-wordmark{color:#111827;text-shadow:none}.topbar .brand small{color:#9ba7b6}.topbar .brand{overflow:visible}.sidebar-brand{overflow:visible!important}
.topbar{grid-template-columns:minmax(210px,270px) auto auto;column-gap:14px}.topbar-tools{min-width:0;justify-content:flex-end}.top-auth-btn{white-space:nowrap}
.account-box>div:last-child{min-width:0}.account-box b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* Calm, conversational message rhythm inspired by modern chat UIs without copying their visual skin. */
.conversation{width:min(860px,100%)}
.msg{grid-template-columns:34px minmax(0,1fr);gap:12px;max-width:860px;margin:0 auto 24px;align-items:start}
.msg-avatar{width:34px;height:34px;border-radius:11px;font-size:10px;box-shadow:none}
.msg-body{min-width:0;padding:5px 2px 8px;border:0;background:transparent;box-shadow:none}
.msg-name{margin-bottom:7px;font-size:12px}.msg-text{font-size:15.5px;line-height:1.72;overflow-wrap:anywhere}
.msg-meta{margin-top:8px}.msg-action{height:30px;padding:0 9px;border-radius:9px;background:transparent;font-size:11px}
.msg.user{display:flex;justify-content:flex-end;margin-bottom:22px}.msg.user .msg-avatar,.msg.user .msg-name{display:none}.msg.user .msg-body{width:auto;max-width:min(76%,690px);padding:11px 15px;border:1px solid var(--line);border-radius:20px 20px 7px 20px;background:color-mix(in srgb,var(--card) 90%,var(--redSoft));box-shadow:none}.msg.user .msg-text{line-height:1.58}
body.light .msg-body{color:#172033}body.light .msg.user .msg-body{background:#eef2f6;border-color:#d8e0e9}

/* Composer is intentionally compact: writing area first, controls quiet, submit is an icon-only circle. */
.composer-shell{padding:8px 22px 16px;background:linear-gradient(180deg,transparent 0,var(--bg) 24%)}
.composer-wrap{width:min(860px,100%)}
.sub-banner{margin:0 auto 8px;padding:9px 12px;border-radius:14px;min-height:42px;box-shadow:none}.sub-banner b{font-size:12px}.sub-banner span{font-size:11px;margin-top:2px}.banner-actions{gap:6px;flex:0 0 auto}.banner-actions .mini-btn{height:34px;padding:0 10px;border-radius:10px;font-size:11px}
.composer{border-radius:27px;overflow:visible;background:color-mix(in srgb,var(--panel) 96%,transparent);box-shadow:0 10px 32px rgba(0,0,0,.22);padding:8px 8px 7px;transition:border-color .16s,box-shadow .16s}
.composer:focus-within{border-color:color-mix(in srgb,var(--line2) 72%,var(--red) 28%);box-shadow:0 12px 34px rgba(0,0,0,.27),0 0 0 1px rgba(255,59,49,.035)}
.composer textarea{display:block;height:auto;min-height:48px;max-height:180px;overflow-y:auto;padding:10px 11px 7px;font-size:15.5px;line-height:1.55;border-radius:18px}
.composer textarea::placeholder{color:color-mix(in srgb,var(--muted) 82%,transparent)}
.composer-bottom{min-width:0;padding:2px 2px 1px;gap:10px;align-items:center;flex-direction:row}
.composer-left{display:flex;flex:1 1 auto;min-width:0;flex-direction:row;align-items:center;gap:7px}.composer-actions{display:flex;flex:0 0 auto;align-items:center;gap:10px}
.composer-icon-btn{width:36px;height:36px;flex:0 0 36px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;background:transparent;color:var(--text);font-size:21px;line-height:1;transition:.15s}.composer-icon-btn:hover{background:var(--card);border-color:var(--line2)}
.model-picker{min-width:0}.model-btn{height:36px;padding:0 11px;border-radius:999px;background:transparent;gap:8px;font-size:12px;font-weight:700}.model-btn:hover{background:var(--card)}.model-btn .chevron{font-size:11px;color:var(--muted);margin-left:1px}.model-menu{bottom:44px;width:238px;border-radius:16px;box-shadow:0 18px 46px rgba(0,0,0,.35)}
.file-chip{height:34px;max-width:220px;padding:0 8px 0 10px;gap:7px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chip-remove{width:22px;height:22px;flex:0 0 22px;border:0;border-radius:50%;background:transparent;color:var(--muted);font-size:17px;line-height:1}.chip-remove:hover{background:var(--redSoft);color:var(--text)}
.hint{font-size:10px;max-width:none;white-space:nowrap;opacity:.72}
.send-btn{width:40px;height:40px;min-width:40px;flex:0 0 40px;padding:0;border-radius:50%;display:grid;place-items:center;background:#f3f5f7;color:#0b0e12;box-shadow:none;transition:transform .14s,opacity .14s,background .14s}.send-btn:disabled{opacity:.3;cursor:default}.send-btn:disabled:hover{transform:none}.send-btn:hover:not(:disabled){transform:scale(1.035)}.send-btn:active{transform:scale(.97)}
.send-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}.send-btn .stop-icon{display:none;fill:currentColor;stroke:none}.send-btn.stop{background:#4b5563;color:#fff}.send-btn.stop .send-arrow{display:none}.send-btn.stop .stop-icon{display:block}
body.light .composer{background:#fff;box-shadow:0 10px 28px rgba(20,35,55,.10)}body.light .send-btn{background:#111827;color:#fff}

/* Defensive overlap fixes for narrow widths and translated UI strings. */
.chat-head>*{min-width:0}.head-actions{margin-left:auto}.settings-btn{white-space:nowrap}.side-row{gap:8px}.sidebar-brand{flex:1 1 auto}.sidebar-brand .compact-wordmark{overflow:hidden;text-overflow:ellipsis}.sub-banner>div:first-child{min-width:0}.sub-banner span{overflow-wrap:anywhere}

@media (max-width:1100px){
  .topbar{grid-template-columns:minmax(190px,1fr) auto}.brand-wordmark{font-size:23px}.topbar .brand small{display:none}
  .composer-wrap,.conversation{width:min(820px,100%)}
}
@media (max-width:760px){
  .topbar{grid-template-columns:minmax(0,1fr) auto;column-gap:7px}.brand-icon-shell{width:34px;height:34px;flex-basis:34px}.brand-icon-shell img{width:26px;height:26px}.brand-wordmark{font-size:20px}.brand-copy{overflow:hidden}.topbar-tools{gap:6px}
  .scroll{padding:15px 11px}.msg{grid-template-columns:30px minmax(0,1fr);gap:9px;margin-bottom:19px}.msg-avatar{width:30px;height:30px;border-radius:9px}.msg-body{padding-top:3px}.msg-text{font-size:14.5px}.msg.user .msg-body{max-width:88%;padding:10px 13px}
  .composer-shell{padding:6px 8px calc(8px + env(safe-area-inset-bottom));background:linear-gradient(180deg,transparent 0,var(--bg) 18%)}
  .sub-banner{padding:8px 9px;gap:6px}.sub-banner span{display:none}.sub-banner b{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.banner-actions .mini-btn{height:32px;padding:0 8px;font-size:10px}.banner-actions #dismissBanner{width:32px;padding:0;font-size:0}.banner-actions #dismissBanner::after{content:'×';font-size:17px}
  .composer{border-radius:23px;padding:7px 7px 6px}.composer textarea{min-height:45px;max-height:140px;padding:9px 9px 6px;font-size:15px}.composer-bottom{gap:7px}.composer-left{gap:5px}.composer-icon-btn,.model-btn{height:34px}.composer-icon-btn{width:34px;flex-basis:34px}.model-btn{padding:0 9px}.send-btn{width:38px;height:38px;min-width:38px;flex-basis:38px}.hint{display:none}.file-chip{max-width:120px;height:32px;font-size:10px}.model-menu{bottom:42px;left:0;width:min(238px,calc(100vw - 34px))}
}
@media (max-width:420px){
  .brand-wordmark{font-size:18px}.topbar .cta-btn{padding:0 9px}.composer-left{max-width:calc(100% - 46px)}.model-btn .dot{display:none}.file-chip{max-width:92px}.sub-banner{align-items:center;flex-direction:row}.banner-actions{width:auto}.banner-actions .mini-btn{flex:0 0 auto}
}


/* Stage 11G — product polish: responsive navigation, calmer chrome, usage UX, richer chat states. */
.chat-app{--chatRail:292px}
.history-label{padding:15px 18px 2px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
.history{display:flex;flex-direction:column;gap:4px;padding:8px 10px 12px}
.hist{position:relative;padding:11px 12px;border:0;background:transparent;border-radius:12px;transform:none!important}
.hist:hover{background:color-mix(in srgb,var(--card) 72%,transparent);border-color:transparent}.hist.active{background:color-mix(in srgb,var(--card) 88%,var(--redSoft));border-color:transparent}
.hist b{margin:0 0 3px;font-size:13px;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hist span{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.new-chat{height:44px;margin-top:14px;padding:0 13px;display:flex;align-items:center;gap:10px;justify-content:flex-start;border-radius:12px;background:transparent;font-size:13px}.new-chat:hover{background:var(--card)}.new-chat-icon{font-size:19px;font-weight:400;line-height:1}
.search{margin-top:10px;height:40px;padding:0 11px;border-radius:12px;background:transparent}.search:focus-within{background:var(--card);border-color:var(--line2)}.search input{height:38px;font-size:12px}.search-icon{color:var(--muted);font-size:17px}
.account{display:grid;gap:8px;padding:10px;border-top:1px solid var(--line)}
.usage-card{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:14px;background:color-mix(in srgb,var(--card) 76%,transparent);color:var(--text);text-align:left;box-shadow:none}.usage-card:hover{border-color:var(--line2);background:var(--card)}
.usage-card-top,.usage-card-bottom{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.usage-card-top>span{display:block}.usage-card-top b{display:block;font-size:12px}.usage-card-top small{display:block;margin-top:2px;color:var(--muted);font-size:10px}.usage-card-top strong{font-size:11px;color:var(--muted);font-weight:700}
.usage-track,.settings-usage-track{display:block;height:4px;margin:9px 0 7px;border-radius:999px;background:color-mix(in srgb,var(--line) 72%,transparent);overflow:hidden}.usage-track i,.settings-usage-track i{display:block;height:100%;width:16%;border-radius:inherit;background:linear-gradient(90deg,var(--red),var(--red2));transition:width .24s ease}
.usage-card-bottom{align-items:center;color:var(--muted);font-size:9.5px}.usage-card-bottom span:first-child{color:var(--text)}
.account-box{grid-template-columns:36px minmax(0,1fr) 18px;align-items:center;gap:9px;padding:8px 9px;border:0;background:transparent;border-radius:12px}.account-box:hover{background:var(--card)}.avatar-user{width:36px;height:36px;padding:0;border-radius:11px;background:linear-gradient(145deg,#202a36,#111820);color:#f4f7fb;font-size:12px;font-weight:800}.account-copy b{font-size:11px}.account-copy span{display:block;margin-top:2px;color:var(--muted);font-size:10px}.account-chevron{color:var(--muted);font-size:20px}
.sidebar-backdrop,.settings-backdrop{position:fixed;inset:0;border:0;padding:0;background:rgba(0,0,0,.44);backdrop-filter:blur(3px);opacity:0;pointer-events:none;transition:opacity .18s;z-index:54}.sidebar-backdrop{z-index:54}.settings-backdrop{z-index:58}.sidebar-backdrop.open,.settings-backdrop.open{opacity:1;pointer-events:auto}
.head-icon-btn{width:40px;height:40px;flex:0 0 40px;border:1px solid var(--line);border-radius:12px;background:transparent;color:var(--text);display:grid;place-items:center;transition:.15s}.head-icon-btn:hover{background:var(--card);border-color:var(--line2)}.head-icon-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.sidebar-toggle{display:none}.chat-head{padding:0 18px;background:color-mix(in srgb,var(--bg) 86%,transparent)}.chat-title{display:flex;flex-direction:column;justify-content:center}.chat-title-row{display:flex;align-items:center;gap:8px;min-width:0}.chat-title-row b{min-width:0;overflow:hidden;text-overflow:ellipsis}.mode-badge{display:inline-flex!important;width:auto;flex:0 0 auto;margin:0!important;padding:3px 7px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--muted)!important;font-size:9px!important;font-weight:800;letter-spacing:.07em;text-transform:uppercase}.chat-title>span{margin-top:2px!important}
.settings-btn{padding:0}.settings-icon,.settings-label,.mobile-chat-back{display:none!important}
.empty{max-width:760px;margin:0 auto;padding:44px 0}.empty-logo{width:58px;height:58px;border-radius:18px;padding:11px;box-shadow:none}.empty h2{margin:16px 0 9px;font-size:46px;letter-spacing:-.035em}.empty p{max-width:560px;font-size:14px;line-height:1.6}.quick-prompts{width:min(690px,100%);gap:9px;margin-top:22px}.qp{min-height:54px;padding:13px 15px;border-radius:14px;background:transparent;font-size:13px;line-height:1.35}.qp:hover{background:var(--card);transform:none}
.msg-meta{opacity:.35;transition:opacity .15s}.msg.ai:hover .msg-meta{opacity:1}.msg-action{width:30px;height:30px;padding:0;display:grid;place-items:center;border:0;border-radius:9px;color:var(--muted);font-size:0}.msg-action:hover{background:var(--card);color:var(--text)}.msg-action.copy::before{content:'⧉';font-size:15px}.msg-action.retry::before{content:'↻';font-size:17px}
.msg-route{display:inline-flex;align-items:center;gap:5px;margin-left:6px;padding:2px 6px;border-radius:999px;border:1px solid var(--line);color:var(--muted);font-size:9px;font-weight:700;vertical-align:middle}.msg-route::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--red)}
.composer-note{text-align:center;margin-top:7px;color:var(--muted);font-size:9.5px;line-height:1.35;opacity:.72}.composer-shell{padding-bottom:10px}.sub-banner{transition:opacity .18s,transform .18s}.sub-banner.compact-demo{max-width:max-content;margin-left:auto;margin-right:0;background:transparent;border-color:transparent;padding:3px 0;min-height:0}.sub-banner.compact-demo>div:first-child{display:none}.sub-banner.compact-demo #dismissBanner{display:none}.sub-banner.compact-demo #openPaywallFromBanner{height:28px;border-radius:999px;padding:0 10px;font-size:9px;color:var(--muted);background:transparent}
.drawer{right:-410px;width:min(390px,100vw);padding:16px;z-index:60}.drawer.open{right:0}.drawer-head{padding:4px 2px 14px;border-bottom:1px solid var(--line)}.drawer-head small{display:block;color:var(--muted);font-size:9px;letter-spacing:.14em;text-transform:uppercase}.drawer-head h3{margin-top:4px;font-size:24px}.drawer-close,.paywall-close{width:38px;height:38px;border:1px solid var(--line);border-radius:11px;background:transparent;color:var(--text);font-size:23px;line-height:1;display:grid;place-items:center}.drawer-close:hover,.paywall-close:hover{background:var(--card)}
.setting{margin-bottom:8px;border-radius:15px;background:transparent}.setting-row{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.setting-row strong{font-size:12px}.settings-usage-track{height:5px;margin:13px 0 9px}.usage-caption{font-size:10px!important}
.paywall{position:relative}.paywall-close{position:absolute;right:18px;top:18px;z-index:2}.paywall-brand{padding-right:50px}
body.light .usage-card,body.light .account-box:hover,body.light .hist:hover,body.light .hist.active,body.light .qp:hover{background:#f4f7fa}body.light .head-icon-btn{background:#fff}
@media (max-width:1100px){
  .sidebar{display:flex;position:fixed;left:0;top:0;bottom:0;width:min(292px,88vw);height:100dvh;z-index:55;transform:translateX(-102%);transition:transform .2s ease;box-shadow:22px 0 60px rgba(0,0,0,.34)}.sidebar.open{transform:translateX(0)}
  .sidebar-toggle{display:grid}.chat-head{padding:0 14px}.chat-title>span{display:none}.chat-title-row{gap:6px}
}
@media (max-width:760px){
  .chat-head{min-height:58px;flex-basis:58px;padding:7px 8px;gap:7px}.head-icon-btn{width:38px;height:38px;flex-basis:38px;border-radius:11px}.chat-title-row b{font-size:13px}.mode-badge{font-size:8px!important;padding:3px 6px}
  .scroll{padding:13px 9px}.empty{padding:26px 2px}.empty h2{font-size:36px}.empty p{font-size:13px}.quick-prompts{gap:7px}.qp{min-height:48px;padding:11px 12px;font-size:12px}
  .msg-meta{opacity:1}.composer-note{font-size:8.5px;margin-top:5px}.sub-banner.compact-demo{margin-right:2px}.paywall-close{right:12px;top:12px}
}
@media (max-width:420px){
  .mode-badge{display:none!important}.empty h2{font-size:33px}.usage-card{padding:10px}.composer-note{max-width:92%;margin-left:auto;margin-right:auto}
}

/* Stage 11G.1 — final polish after visual QA. */
.empty h2{font-family:Inter,Arial,Helvetica,sans-serif;text-transform:none;font-weight:720;letter-spacing:-.045em;font-size:42px;line-height:1.02}
.hint{display:none!important}
.drawer{overflow-y:auto;overscroll-behavior:contain}
.plan-setting{display:flex;align-items:center;justify-content:space-between;gap:12px}.plan-setting>div{min-width:0}.settings-plan-btn{height:36px;flex:0 0 auto;padding:0 12px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--text);font-size:11px;font-weight:700}.settings-plan-btn:hover{border-color:var(--line2)}
@media (max-width:760px){.empty h2{font-size:34px}.composer-shell{padding-top:6px}.plan-setting{align-items:flex-start}.settings-plan-btn{height:34px}}


/* Stage 11H — product depth */
.chat-head{position:relative}
.chat-status{display:inline-flex;align-items:center;gap:7px;padding:6px 9px;border:1px solid rgba(255,255,255,.08);border-radius:999px;background:rgba(255,255,255,.035);font-size:11px;color:var(--muted);white-space:nowrap}
.chat-status i{width:6px;height:6px;border-radius:50%;background:#49d17d;box-shadow:0 0 0 4px rgba(73,209,125,.08)}
body.light .chat-status{border-color:rgba(14,20,28,.1);background:rgba(14,20,28,.035)}
.hist{position:relative;padding-right:38px}
.hist-menu-btn{position:absolute;right:7px;top:50%;transform:translateY(-50%);width:28px;height:28px;border:0;border-radius:8px;background:transparent;color:var(--muted);display:grid;place-items:center;opacity:0;cursor:pointer;font-size:18px;line-height:1}
.hist:hover .hist-menu-btn,.hist.active .hist-menu-btn,.hist-menu-btn:focus-visible{opacity:1}
.hist-menu-btn:hover{background:rgba(255,255,255,.07);color:var(--text)}
body.light .hist-menu-btn:hover{background:rgba(14,20,28,.07)}
.chat-context-menu{position:fixed;z-index:90;min-width:176px;padding:6px;border:1px solid var(--line);border-radius:12px;background:rgba(18,18,21,.98);box-shadow:0 18px 44px rgba(0,0,0,.34);display:none}
.chat-context-menu.open{display:block}
.chat-context-menu button{width:100%;border:0;background:transparent;color:var(--text);padding:9px 10px;border-radius:8px;text-align:left;font:inherit;font-size:13px;cursor:pointer}
.chat-context-menu button:hover{background:rgba(255,255,255,.065)}
.chat-context-menu button.danger{color:#ff8a8a}
body.light .chat-context-menu{background:rgba(251,251,252,.99)}
body.light .chat-context-menu button:hover{background:rgba(14,20,28,.06)}
.history-empty{padding:16px 12px;color:var(--muted);font-size:12px;line-height:1.45}
.account-box{position:relative}
.account-popover{position:fixed;z-index:95;width:292px;padding:10px;border:1px solid var(--line);border-radius:15px;background:rgba(18,18,21,.985);box-shadow:0 20px 52px rgba(0,0,0,.38);display:none}
.account-popover.open{display:block}
.account-pop-head{display:flex;gap:10px;align-items:center;padding:8px 8px 12px;border-bottom:1px solid var(--line)}
.account-pop-head .avatar{flex:0 0 auto}.account-pop-head div:last-child{min-width:0}.account-pop-head b{display:block;font-size:13px;overflow:hidden;text-overflow:ellipsis}.account-pop-head span{display:block;color:var(--muted);font-size:11px;margin-top:3px}
.account-pop-plan{padding:12px 8px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line)}
.account-pop-plan div span{display:block;color:var(--muted);font-size:11px;margin-top:2px}.account-pop-plan strong{font-size:11px;border:1px solid rgba(221,45,45,.28);background:rgba(221,45,45,.08);color:#ff9c9c;padding:5px 7px;border-radius:999px}
.account-pop-actions{padding-top:7px}.account-pop-actions button{width:100%;border:0;background:transparent;color:var(--text);padding:10px;border-radius:9px;text-align:left;font:inherit;font-size:13px;cursor:pointer}.account-pop-actions button:hover{background:rgba(255,255,255,.06)}
body.light .account-popover{background:rgba(251,251,252,.99)}body.light .account-pop-actions button:hover{background:rgba(14,20,28,.055)}body.light .account-pop-plan strong{color:#b32323}
.model-menu{width:330px;max-width:min(330px,calc(100vw - 28px))}
.model-item{padding:11px 12px}.model-item div{min-width:0}.model-item b{display:flex;align-items:center;gap:7px}.model-item .model-tag{font-size:9px;text-transform:uppercase;letter-spacing:.08em;padding:3px 5px;border-radius:999px;background:rgba(221,45,45,.1);color:#ff9a9a;font-weight:700}.model-item span.model-desc{display:block;margin-top:3px;line-height:1.3}
.model-menu-foot{border-top:1px solid var(--line);padding:8px 12px 4px;color:var(--muted);font-size:10px;line-height:1.35}
.usage-card.warning .usage-track i,.settings-usage-track.warning i{background:#f1a33a!important}.usage-card.critical .usage-track i,.settings-usage-track.critical i{background:#e34a4a!important}.usage-card.warning .usage-card-top strong,.usage-card.critical .usage-card-top strong{color:#ffb75a}
.credit-alert{display:none;margin-top:9px;padding:8px 10px;border-radius:9px;background:rgba(241,163,58,.08);border:1px solid rgba(241,163,58,.19);font-size:11px;color:#eab36a;line-height:1.4}.credit-alert.show{display:block}.credit-alert.critical{background:rgba(227,74,74,.08);border-color:rgba(227,74,74,.2);color:#ff8e8e}
.file-chip{max-width:260px}.file-chip span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:205px}.file-meta{font-size:10px;color:var(--muted);margin-left:4px}
.demo-account-note{font-size:10px;color:var(--muted);padding:7px 9px 0;line-height:1.35}
.rename-dialog{position:fixed;inset:0;z-index:120;background:rgba(0,0,0,.52);display:none;align-items:center;justify-content:center;padding:20px}.rename-dialog.open{display:flex}.rename-card{width:min(420px,100%);padding:18px;border:1px solid var(--line);border-radius:16px;background:#151518;box-shadow:0 24px 60px rgba(0,0,0,.4)}.rename-card h3{margin:0 0 6px;font-size:17px}.rename-card p{margin:0 0 14px;color:var(--muted);font-size:12px}.rename-card input{width:100%;height:42px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.035);color:var(--text);padding:0 12px;font:inherit;outline:0}.rename-card input:focus{border-color:rgba(221,45,45,.55);box-shadow:0 0 0 3px rgba(221,45,45,.1)}.rename-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}.rename-actions button{height:36px;padding:0 13px;border-radius:9px;border:1px solid var(--line);background:transparent;color:var(--text);font:inherit;cursor:pointer}.rename-actions .save{background:#df3030;border-color:#df3030;color:white}
body.light .rename-card{background:#fff}body.light .rename-card input{background:rgba(14,20,28,.03)}
@media(max-width:760px){.chat-status{display:none}.account-popover{left:12px!important;right:12px!important;width:auto!important}.hist-menu-btn{opacity:1}.model-menu{left:-42px}.file-chip{max-width:180px}.file-chip span{max-width:125px}}

/* Stage 12A — modular product foundation and transparent weighted-usage UX. */
.usage-breakdown-setting{padding-bottom:14px}
.family-usage-row{margin-top:13px}.family-usage-head{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px}.family-usage-head span{display:inline-flex!important;align-items:center;gap:7px;color:var(--text)!important}.family-usage-head strong{font-size:10px;color:var(--muted);font-weight:700}
.family-dot{display:inline-block;width:7px;height:7px;border-radius:50%}.family-dot.gpt{background:#ef5b52;box-shadow:0 0 0 4px rgba(239,91,82,.08)}.family-dot.claude{background:#9b7af7;box-shadow:0 0 0 4px rgba(155,122,247,.08)}
.family-usage-track{height:5px;margin-top:7px;border-radius:999px;background:color-mix(in srgb,var(--line) 76%,transparent);overflow:hidden}.family-usage-track i{display:block;height:100%;min-width:0;border-radius:inherit;transition:width .24s ease}.family-usage-row:nth-of-type(2) .family-usage-track i{background:linear-gradient(90deg,#ef5b52,var(--red2))}.family-usage-row:nth-of-type(3) .family-usage-track i{background:linear-gradient(90deg,#7f62e8,#ac8df7)}
.chat-context-menu{min-width:190px}
@media(max-width:760px){.usage-breakdown-setting{padding-bottom:12px}.family-usage-head strong{max-width:55%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}}

/* Stage 12B — server-connected product foundation */
.chat-status.offline i{background:#f1a33a;box-shadow:0 0 0 4px rgba(241,163,58,.08)}
.msg.streaming .msg-text::after{content:"";display:inline-block;width:7px;height:15px;margin-left:3px;vertical-align:-2px;border-radius:2px;background:var(--red);animation:streamCaret .8s steps(1) infinite}
@keyframes streamCaret{50%{opacity:0}}

/* Stage 12B — rich AI message rendering */
.msg.ai .msg-text p{margin:0 0 10px}.msg.ai .msg-text p:last-child{margin-bottom:0}.msg.ai .msg-text h2,.msg.ai .msg-text h3,.msg.ai .msg-text h4{margin:16px 0 8px;line-height:1.25;letter-spacing:-.02em}.msg.ai .msg-text h2{font-size:18px}.msg.ai .msg-text h3{font-size:16px}.msg.ai .msg-text h4{font-size:14px}.msg.ai .msg-text ul,.msg.ai .msg-text ol{margin:8px 0 12px;padding-left:22px}.msg.ai .msg-text li{margin:5px 0}.msg.ai .msg-text blockquote{margin:10px 0;padding:8px 12px;border-left:2px solid var(--red);background:var(--redSoft);border-radius:0 9px 9px 0;color:color-mix(in srgb,var(--text) 88%,var(--muted))}.inline-code{padding:2px 5px;border:1px solid var(--line);border-radius:6px;background:color-mix(in srgb,var(--panel2) 88%,transparent);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.88em}.md-gap{height:4px}.code-block{margin:12px 0;border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#090b0f}.code-head{height:38px;padding:0 10px 0 13px;display:flex;align-items:center;justify-content:space-between;background:#11151b;border-bottom:1px solid #252c35;color:#8995a3;font-size:10px;text-transform:uppercase;letter-spacing:.08em}.code-copy{height:27px;padding:0 9px;border:1px solid #303944;border-radius:7px;background:#171c23;color:#c9d1da;font-size:10px;text-transform:none;letter-spacing:0}.code-copy:hover{border-color:#46515e;color:white}.code-block pre{margin:0;padding:14px 15px;overflow:auto;max-height:520px}.code-block pre code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;line-height:1.65;color:#d8dee8;white-space:pre}.msg.streaming .code-copy{pointer-events:none}body.light .code-block{background:#f4f6f8}body.light .code-head{background:#edf1f4;border-bottom-color:#d8dfe6;color:#65717e}body.light .code-copy{background:#fff;border-color:#d5dce4;color:#3a4652}body.light .code-block pre code{color:#202a35}

/* Stage 12C — account, OAuth and legal product layer */
.top-auth-btn{cursor:pointer}.top-auth-btn:hover{border-color:rgba(255,59,49,.3);color:var(--text)}
.footer-links{display:inline-flex;align-items:center;gap:18px}.footer-links a{color:var(--muted);transition:.16s}.footer-links a:hover{color:var(--text)}
.account-pop-actions .account-danger{color:#ff8d8d}.account-pop-actions .account-danger:hover{background:rgba(227,74,74,.08)}
.paywall-legal{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:10px;line-height:1.55;color:var(--muted)}.paywall-legal a{color:var(--text);text-decoration:underline;text-underline-offset:2px}
.auth-overlay{position:fixed;inset:0;z-index:160;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(2,4,7,.72);backdrop-filter:blur(10px)}.auth-overlay.open{display:flex}.auth-card{position:relative;width:min(480px,100%);padding:28px;border:1px solid var(--line);border-radius:24px;background:color-mix(in srgb,var(--panel) 98%,#000 2%);box-shadow:0 30px 80px rgba(0,0,0,.48)}.auth-close{position:absolute;top:14px;right:14px;width:38px;height:38px;border:1px solid var(--line);border-radius:12px;background:transparent;color:var(--muted);font-size:22px;cursor:pointer}.auth-close:hover{color:var(--text);background:var(--card)}.auth-brand{margin-bottom:22px}.auth-card h2{margin:8px 0 8px;font-size:34px;letter-spacing:-.04em}.auth-card>p{margin:0;color:var(--muted);font-size:13px;line-height:1.55;max-width:390px}.auth-providers{display:grid;gap:10px;margin-top:22px}.auth-provider{width:100%;min-height:64px;display:grid;grid-template-columns:42px minmax(0,1fr) 20px;align-items:center;gap:12px;padding:9px 13px;border:1px solid var(--line);border-radius:16px;background:var(--card);color:var(--text);text-align:left;cursor:pointer;transition:.15s}.auth-provider:hover:not(:disabled){transform:translateY(-1px);border-color:var(--line2);background:color-mix(in srgb,var(--card) 86%,#fff 4%)}.auth-provider:disabled{opacity:.48;cursor:not-allowed}.provider-mark{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-size:16px;font-weight:900}.auth-provider.yandex .provider-mark{background:#fff;color:#111}.auth-provider.vk .provider-mark{background:#1678f2;color:white;font-size:12px}.auth-provider b{display:block;font-size:13px}.auth-provider small{display:block;margin-top:3px;color:var(--muted);font-size:10px}.auth-provider i{font-style:normal;color:var(--muted);font-size:18px}.auth-notice{margin-top:14px;padding:10px 11px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.025);color:var(--muted);font-size:10px;line-height:1.5}.auth-demo{width:100%;height:42px;margin-top:12px;border:1px solid var(--line);border-radius:12px;background:transparent;color:var(--text);font:inherit;font-size:12px;cursor:pointer}.auth-demo:hover{background:var(--card)}.auth-legal{margin-top:14px;color:var(--muted);font-size:9.5px;line-height:1.55}.auth-legal a{color:var(--text);text-decoration:underline;text-underline-offset:2px}body.light .auth-card{background:#fff}body.light .auth-notice{background:#f7f9fb}
.authenticated .avatar-user{background:linear-gradient(145deg,#372018,#171a22);color:#ffd9cc}.account-box .auth-provider-mini{font-size:9px;color:var(--muted)}
@media(max-width:760px){.footer{padding:22px 16px 32px}.footer-links{width:100%;order:3;gap:14px}.top-auth-btn{padding:0 10px;font-size:10px;height:42px}.auth-overlay{padding:10px;align-items:flex-end}.auth-card{padding:22px 16px calc(18px + env(safe-area-inset-bottom));border-radius:22px 22px 14px 14px}.auth-card h2{font-size:29px}.auth-provider{min-height:60px}.paywall-legal{font-size:9.5px}}

/* Stage 12D — billing */
.payment-pending{margin-top:18px;padding:14px 16px;border:1px solid rgba(221,45,45,.24);background:rgba(221,45,45,.065);border-radius:16px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.payment-pending[hidden]{display:none}.payment-pending small{display:block;color:var(--muted);font-size:9px;letter-spacing:.13em;text-transform:uppercase;margin-bottom:4px}.payment-pending b{display:block;font-size:15px}.payment-pending span{display:block;color:var(--muted);font-size:11px;margin-top:3px}.choose-plan.loading{opacity:.68;cursor:wait}.choose-plan:disabled{opacity:.58;cursor:not-allowed}
body.light .payment-pending{background:rgba(184,31,31,.055);border-color:rgba(184,31,31,.18)}
@media(max-width:760px){.payment-pending{align-items:stretch;flex-direction:column}.payment-pending .mini-btn{width:100%;min-height:42px}}

/* Stage 12E — files, account lifecycle and operations */
.message-file{margin-top:10px;max-width:360px;display:flex;align-items:center;gap:10px;padding:9px 11px;border:1px solid var(--line);border-radius:12px;background:color-mix(in srgb,var(--panel2) 88%,transparent);color:var(--text);text-decoration:none}.message-file>span{width:30px;height:30px;border:1px solid var(--line);border-radius:9px;display:grid;place-items:center;color:var(--red);font-size:14px}.message-file div{min-width:0}.message-file b,.message-file small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-file b{font-size:11px}.message-file small{margin-top:2px;color:var(--muted);font-size:9px}.message-file[href]:hover{border-color:var(--line2);background:var(--card)}
.account-data-actions{display:flex;gap:8px;margin-top:12px}.account-data-actions button{min-height:36px;padding:0 11px;border:1px solid var(--line);border-radius:9px;background:transparent;color:var(--text);font:inherit;font-size:10px;cursor:pointer}.account-data-actions button:hover{background:var(--card)}.account-data-actions .danger{color:#ff8d8d}.account-data-actions button:disabled{opacity:.45;cursor:not-allowed}
@media(max-width:760px){.message-file{max-width:100%}.account-data-actions{flex-direction:column}.account-data-actions button{width:100%;min-height:40px}}

/* Stage 12F — document/file manager */
.settings-files-list{display:grid;gap:7px;margin-top:12px}.settings-file-row{display:flex;align-items:center;gap:9px;padding:9px 10px;border:1px solid var(--line);border-radius:11px;background:var(--card)}.settings-file-row>div{min-width:0;flex:1}.settings-file-row b{display:block;margin:0!important;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.settings-file-row small{display:block;margin-top:3px;color:var(--muted);font-size:9px;line-height:1.35}.settings-file-row a,.settings-file-row button{height:28px;min-width:28px;padding:0 8px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--text);font:inherit;font-size:9px;text-decoration:none;display:grid;place-items:center;cursor:pointer}.settings-file-row button{color:#ff8d8d}.files-empty{font-size:10px!important;padding:5px 2px}.file-chip.document-ready{border-color:color-mix(in srgb,#65d696 34%,var(--line))}.file-chip.document-limited{border-color:color-mix(in srgb,#f1a33a 36%,var(--line))}
@media(max-width:760px){.settings-file-row{padding:9px 8px}.settings-file-row small{max-width:175px}.files-setting .setting-row{align-items:flex-start}}

/* Stage 12G — conversational editing */
.edit-mode-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 8px 6px;padding:7px 10px;border-radius:10px;background:rgba(255,59,49,.08);border:1px solid rgba(255,59,49,.18);font-size:11px;color:var(--muted)}
.edit-mode-bar[hidden]{display:none}.edit-mode-bar button{border:0;background:transparent;color:var(--text);font-size:11px;padding:3px 6px;border-radius:7px}.edit-mode-bar button:hover{background:var(--card)}
.msg.user .msg-meta{justify-content:flex-end}.msg-action.edit::before{content:'✎';font-size:15px}.msg.edit-source .msg-body{outline:1px solid rgba(255,59,49,.34);outline-offset:2px}
@media(max-width:760px){.edit-mode-bar{margin:0 2px 5px;font-size:10px}.edit-mode-bar span{max-width:76%}}

/* Stage 12T — React Bits Text Scatter behavior replica for the hero title.
   Public template defaults: velocity 200, rotation 90, scale 1, returnAfter 1s, duration 2s. */
.hero-title-scatter{margin:22px 0 18px!important;max-width:760px!important;font-family:Arial Narrow,Arial,sans-serif;font-size:clamp(58px,6.4vw,102px)!important;line-height:.88!important;letter-spacing:-.055em;text-transform:uppercase;color:#f7f9fc!important;overflow:visible;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.hero-title-line{display:block!important;max-width:100%;overflow:visible}
.hero-title-primary{color:#f7f9fc!important}
.hero-title-accent{color:var(--red)!important}
.text-scatter-word{display:inline-block;white-space:nowrap;overflow:visible}
.text-scatter-char{position:relative;display:inline-block;color:inherit;transform:translate3d(0,0,0) rotate(0deg) scale(1);transform-origin:50% 55%;backface-visibility:hidden;pointer-events:none}
.text-scatter-char.is-scattered{will-change:transform}
@media(hover:hover) and (pointer:fine){.hero-title-scatter{cursor:default}}
@media(max-width:760px){.hero-title-scatter{font-size:clamp(40px,11.2vw,58px)!important;line-height:.92!important;margin:15px 0 14px!important;letter-spacing:-.045em}.hero-title-accent{margin-top:2px}}
@media(max-width:420px){.hero-title-scatter{font-size:clamp(35px,10.7vw,45px)!important}}
@media(prefers-reduced-motion:reduce){.text-scatter-char{transform:none!important}.hero-title-scatter{touch-action:auto}}

/* Stage 12I — authored ambient audio */
.hero-music-credit{display:flex;align-items:center;gap:10px;margin-top:14px;width:max-content;max-width:100%;color:#d6dee8}
.hero-music-toggle{position:relative;display:grid;place-items:center;width:34px;height:34px;flex:0 0 34px;border:1px solid rgba(255,255,255,.16);border-radius:50%;background:rgba(7,10,15,.62);color:#e8edf4;box-shadow:0 8px 28px rgba(0,0,0,.2);backdrop-filter:blur(10px);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease}
.hero-music-toggle:hover{transform:translateY(-1px);border-color:rgba(255,74,64,.58);background:rgba(12,15,21,.82)}
.hero-music-toggle svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.hero-music-toggle.is-playing{border-color:rgba(255,74,64,.72);color:#fff;box-shadow:0 0 0 4px rgba(255,59,49,.08),0 0 22px rgba(255,59,49,.22)}
.hero-music-toggle.is-playing::after{content:"";position:absolute;inset:-5px;border:1px solid rgba(255,74,64,.24);border-radius:50%;animation:musicPulse 1.8s ease-out infinite;pointer-events:none}
.hero-music-copy{min-width:0;display:flex;flex-direction:column;gap:2px;line-height:1.25}
.hero-music-copy span{font-size:9px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#aeb8c5}
.hero-music-copy small{font-size:10px;font-weight:500;letter-spacing:.015em;color:#d8e0ea;white-space:normal}
.music-setting .switch{flex:0 0 auto}
@keyframes musicPulse{0%{opacity:.75;transform:scale(.88)}70%,100%{opacity:0;transform:scale(1.15)}}
@media(max-width:760px){.hero-music-credit{margin-top:12px;gap:9px}.hero-music-toggle{width:32px;height:32px;flex-basis:32px}.hero-music-copy small{font-size:9.5px}}
@media(prefers-reduced-motion:reduce){.hero-music-toggle.is-playing::after{animation:none}.hero-music-toggle{transition:none}}
/* Stage 12J — conversation versions + 7-day usage intelligence */
.branch-btn{position:relative}.branch-symbol{font-size:18px;line-height:1}.branch-count{position:absolute;right:-3px;top:-4px;min-width:16px;height:16px;padding:0 4px;border-radius:999px;background:var(--red);color:#fff;font-style:normal;font-size:9px;display:grid;place-items:center;border:2px solid var(--panel)}
.branch-overlay{position:fixed;inset:0;z-index:72;background:rgba(2,4,8,.68);backdrop-filter:blur(7px);display:grid;place-items:center;padding:18px;opacity:0;pointer-events:none;transition:.18s}.branch-overlay.open{opacity:1;pointer-events:auto}.branch-card{width:min(560px,100%);max-height:min(680px,88vh);overflow:auto;border:1px solid var(--line2);border-radius:22px;background:linear-gradient(180deg,var(--panel),var(--panel2));box-shadow:var(--shadow);padding:20px}.branch-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.branch-card-head small{font-size:9px;letter-spacing:.16em;color:var(--red2)}.branch-card-head h3{margin:4px 0 0;font:700 24px/1 Arial Narrow,Arial,sans-serif;text-transform:uppercase}.branch-intro{color:var(--muted);font-size:11px;line-height:1.55;margin:12px 0 16px}.branch-list{display:grid;gap:8px}.branch-item{display:flex;gap:12px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:13px;background:var(--card)}.branch-item>div{min-width:0;flex:1}.branch-item b{display:block;font-size:12px}.branch-item span{display:block;color:var(--muted);font-size:10px;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.branch-item small{display:block;color:var(--muted);font-size:9px;margin-top:5px}.branch-item button{height:34px;padding:0 11px;border:1px solid var(--line);border-radius:9px;background:transparent;color:var(--text);font-size:10px;font-weight:700;cursor:pointer}.branch-item button:hover{border-color:var(--red);color:#fff}.branch-empty{padding:18px 4px;color:var(--muted);font-size:11px;text-align:center}
.usage-history-bars{height:92px;display:grid;grid-template-columns:repeat(7,1fr);align-items:end;gap:5px;margin:14px 0 9px;padding:6px 0 0}.usage-day{min-width:0;display:grid;grid-template-rows:1fr auto;gap:5px;height:100%;align-items:end}.usage-day-bar{height:100%;display:flex;align-items:flex-end;justify-content:center;border-radius:7px;background:color-mix(in srgb,var(--line) 48%,transparent);overflow:hidden}.usage-day-bar i{display:block;width:100%;min-height:2px;border-radius:6px;background:linear-gradient(180deg,var(--red2),var(--red));opacity:.88;transition:height .25s}.usage-day label{display:block;text-align:center;color:var(--muted);font-size:8px}.usage-history-stats{display:flex;justify-content:space-between;gap:8px;color:var(--muted);font-size:9px}.usage-history-stats b{display:inline!important;font-size:9px!important;color:var(--text)}
.context-note{display:inline-flex!important;align-items:center;gap:4px;margin-left:7px;padding:2px 6px;border:1px solid color-mix(in srgb,var(--line2) 75%,transparent);border-radius:999px;color:var(--muted)!important;font-size:8px!important;font-weight:600}
@media(max-width:760px){.chat-status{display:none}.branch-card{padding:16px;border-radius:18px}.branch-item{align-items:flex-start}.usage-history-bars{height:82px}}

.branch-actions{display:flex;gap:6px;flex:0 0 auto}.branch-actions .branch-delete{width:34px;padding:0;color:#ff8d8d}.branch-actions .branch-delete:hover{border-color:#e45b5b;color:#fff;background:rgba(220,55,55,.08)}

/* Stage 12L — conversation organization */
.history-tabs{display:flex;gap:4px;padding:12px 10px 4px;overflow-x:auto;scrollbar-width:none}.history-tabs::-webkit-scrollbar{display:none}.history-tab{border:0;background:transparent;color:var(--muted);font:inherit;font-size:10px;font-weight:800;letter-spacing:.04em;padding:7px 9px;border-radius:9px;white-space:nowrap;cursor:pointer}.history-tab:hover{color:var(--text);background:rgba(255,255,255,.045)}.history-tab.active{color:var(--text);background:rgba(221,45,45,.10);box-shadow:inset 0 0 0 1px rgba(221,45,45,.16)}body.light .history-tab:hover{background:rgba(14,20,28,.045)}
.hist{position:relative;padding-right:42px}.hist-pin{position:absolute;right:35px;top:15px;font-size:10px;color:var(--red2);opacity:.8}.hist.archived{opacity:.72}.hist.archived:hover{opacity:1}
.msg-feedback{display:inline-flex;gap:3px;margin-left:4px}.msg-feedback button{width:27px;height:27px;border:0;border-radius:8px;background:transparent;color:var(--muted);display:grid;place-items:center;cursor:pointer;font-size:13px}.msg-feedback button:hover{background:rgba(255,255,255,.06);color:var(--text)}.msg-feedback button.active{color:var(--red2);background:rgba(221,45,45,.10)}body.light .msg-feedback button:hover{background:rgba(14,20,28,.06)}
.draft-indicator{display:inline-flex;align-items:center;gap:5px;color:var(--muted);font-size:9px;margin-left:6px}.draft-indicator::before{content:'•';color:var(--red2)}
@media(max-width:760px){.history-tabs{padding-top:8px}.history-tab{font-size:9px;padding:6px 8px}}

/* Stage 12M — restore lightweight horizontal hero sweep only (left → right). */
.hero::after{content:"";position:absolute;top:0;bottom:0;left:-220px;width:220px;background:linear-gradient(90deg,transparent,rgba(255,59,49,.02),rgba(255,59,49,.11),rgba(255,59,49,.03),transparent);transform:translate3d(0,0,0) skewX(-12deg);animation:heroScanX 8s linear infinite;pointer-events:none;z-index:2;will-change:transform}
@keyframes heroScanX{0%{transform:translate3d(-12vw,0,0) skewX(-12deg)}100%{transform:translate3d(calc(100vw + 440px),0,0) skewX(-12deg)}}
@media(prefers-reduced-motion:reduce){.hero::after{animation:none;display:none}}

/* Stage 12M — compact speaker control + 50% volume. */
.hero-music-credit{align-items:flex-start;gap:11px}
.hero-audio-control{display:grid;justify-items:center;gap:5px;flex:0 0 76px}
.hero-music-toggle{width:32px;height:32px;flex-basis:32px;border-radius:8px;background:rgba(9,12,17,.72)}
.hero-music-toggle svg{width:20px;height:20px;fill:currentColor;stroke:currentColor;stroke-width:1.45}
.hero-music-toggle svg path:first-child{stroke:none}
.hero-music-toggle .speaker-wave{fill:none;transition:opacity .16s ease}
.hero-music-toggle:not(.is-playing) .speaker-wave{opacity:.38}
.hero-music-toggle.is-playing::after{display:none}
.hero-volume-wrap{width:76px;display:grid;grid-template-columns:minmax(0,1fr);gap:1px;justify-items:center;color:#9fa9b6;font-size:8px;line-height:1}
.hero-volume{width:74px;height:14px;margin:0;accent-color:var(--red);cursor:pointer}
.hero-volume-wrap span{font-size:8px;font-variant-numeric:tabular-nums;color:#9fa9b6}
.settings-volume-row{display:grid;grid-template-columns:auto minmax(110px,1fr) 38px;gap:10px;align-items:center;margin-top:12px;color:var(--muted);font-size:10px}
.settings-volume-row input{width:100%;accent-color:var(--red)}
.settings-volume-row strong{text-align:right;color:var(--text);font-size:10px;font-variant-numeric:tabular-nums}
.auth-provider.google .provider-mark{background:#fff;color:#4285f4;font-size:17px;font-family:Arial,sans-serif}
@media(max-width:760px){.hero-audio-control{flex-basis:70px}.hero-volume-wrap{width:70px}.hero-volume{width:68px}.settings-volume-row{grid-template-columns:auto minmax(90px,1fr) 34px}}


/* Stage 12N — conversion/subscription UX */
.access-status-chip{height:34px;max-width:190px;padding:0 11px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--muted);display:inline-flex;align-items:center;gap:7px;font-size:10.5px;font-weight:800;letter-spacing:.01em;white-space:nowrap;transition:.16s}
.access-status-chip i{width:7px;height:7px;border-radius:50%;background:#8a8f98;box-shadow:0 0 0 3px rgba(138,143,152,.1)}
.access-status-chip:hover{border-color:var(--line2);color:var(--text)}
.access-status-chip.active{color:#d8f6df;border-color:rgba(69,190,103,.28);background:rgba(69,190,103,.075)}
.access-status-chip.active i{background:#45be67;box-shadow:0 0 11px rgba(69,190,103,.38)}
.access-status-chip.locked{color:#ffd7d4;border-color:rgba(255,59,49,.25);background:rgba(255,59,49,.065)}
.access-status-chip.locked i{background:var(--red);box-shadow:0 0 11px rgba(255,59,49,.34)}
.billing-history-list{display:flex;flex-direction:column;gap:7px;margin-top:12px}
.billing-history-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center;padding:10px 11px;border:1px solid var(--line);border-radius:12px;background:color-mix(in srgb,var(--card) 80%,transparent)}
.billing-history-row b{display:block;font-size:11px}.billing-history-row small{display:block;color:var(--muted);font-size:9.5px;margin-top:3px}.billing-history-row strong{font-size:11px;white-space:nowrap}
.billing-status{display:inline-flex;align-items:center;gap:5px}.billing-status:before{content:"";width:6px;height:6px;border-radius:50%;background:#8a8f98}.billing-status.paid:before{background:#45be67}.billing-status.pending:before{background:#e3ad42}.billing-status.expired:before,.billing-status.superseded:before{background:#7f838b}
.pending-request-ready{animation:pendingReady 1.1s ease 1}@keyframes pendingReady{0%,100%{box-shadow:var(--shadow)}45%{box-shadow:var(--shadow),0 0 0 2px rgba(255,59,49,.22),0 0 28px rgba(255,59,49,.12)}}
body.light .access-status-chip.active{color:#1d6b32}.body-light-placeholder{display:none}
@media(max-width:900px){.access-status-chip{max-width:135px}.access-status-chip span{overflow:hidden;text-overflow:ellipsis}}
@media(max-width:620px){.access-status-chip{width:34px;padding:0;justify-content:center}.access-status-chip span{display:none}.access-status-chip i{margin:0}.billing-history-row{padding:9px}}

/* Stage 12O — subscription lifecycle */
.subscription-setting{display:flex;flex-direction:column;gap:11px}.subscription-setting .setting-row{margin:0}.subscription-state{font-size:10px;padding:5px 8px;border-radius:999px;border:1px solid var(--line);color:var(--muted);background:var(--card);white-space:nowrap}.subscription-state.active{color:#d8f6df;border-color:rgba(69,190,103,.28);background:rgba(69,190,103,.08)}.subscription-state.warning{color:#ffe5b1;border-color:rgba(235,168,54,.34);background:rgba(235,168,54,.08)}.subscription-details{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 11px;border:1px solid var(--line);border-radius:12px;background:color-mix(in srgb,var(--card) 82%,transparent);font-size:10px;color:var(--muted)}.subscription-details b{color:var(--text);font-size:11px}.subscription-actions{display:flex;gap:8px;flex-wrap:wrap}.subscription-actions .settings-plan-btn{flex:1;min-width:120px}.plan.current-plan{border-color:rgba(69,190,103,.38);box-shadow:inset 0 0 0 1px rgba(69,190,103,.08)}.plan.current-plan::before{content:'текущий тариф';display:inline-flex;margin-bottom:6px;padding:4px 7px;border-radius:999px;background:rgba(69,190,103,.1);border:1px solid rgba(69,190,103,.2);color:#aee9bc;font-size:8px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.paywall-plan-note{margin-top:12px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--muted);font-size:10px;line-height:1.55}.access-status-chip.expiring{color:#ffe6b3;border-color:rgba(235,168,54,.34);background:rgba(235,168,54,.07)}.access-status-chip.expiring i{background:#eba836;box-shadow:0 0 11px rgba(235,168,54,.34)}body.light .subscription-state.active{color:#1d6b32}body.light .plan.current-plan::before{color:#1d6b32}@media(max-width:620px){.subscription-details{align-items:flex-start;flex-direction:column}.subscription-actions{width:100%}.subscription-actions .settings-plan-btn{width:100%}}

/* Stage 12O — request recovery */
.request-recovery-bar{margin:0 0 8px;padding:9px 10px;border:1px solid rgba(235,168,54,.28);border-radius:12px;background:rgba(235,168,54,.065);display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--muted);font-size:10px;line-height:1.35}.request-recovery-bar[hidden]{display:none}.request-recovery-bar>div{display:flex;align-items:center;gap:6px;flex:0 0 auto}.request-recovery-bar button{height:28px;padding:0 9px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--text);font-size:10px;font-weight:800}.request-recovery-bar #dismissRecovery{width:28px;padding:0;font-size:16px}.request-recovery-bar button:hover{border-color:var(--line2)}@media(max-width:620px){.request-recovery-bar{align-items:flex-start;flex-direction:column}.request-recovery-bar>div{width:100%}.request-recovery-bar #retryRequest{flex:1}}


/* Stage 12P — long-chat performance, connectivity and session security */
.network-banner{position:absolute;z-index:8;top:72px;left:50%;transform:translate(-50%,-8px);width:min(720px,calc(100% - 28px));padding:9px 13px;border:1px solid rgba(255,92,92,.28);border-radius:0 0 12px 12px;background:rgba(42,10,12,.94);color:#ffd8d8;font-size:12px;text-align:center;box-shadow:0 10px 28px rgba(0,0,0,.24);opacity:0;pointer-events:none;transition:.18s}
.network-banner.show{opacity:1;transform:translate(-50%,0)}
.jump-latest{position:absolute;right:24px;bottom:118px;z-index:9;width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:color-mix(in srgb,var(--panel) 90%,transparent);color:var(--text);box-shadow:var(--shadow);display:grid;place-items:center;font-size:20px;opacity:0;transform:translateY(8px);pointer-events:none;transition:.16s}
.jump-latest.show{opacity:1;transform:none;pointer-events:auto}.jump-latest:hover{border-color:color-mix(in srgb,var(--red) 50%,var(--line));transform:translateY(-1px)}
.older-messages{display:flex;justify-content:center;margin:4px 0 24px}.older-messages button{border:1px solid var(--line);background:var(--card);color:var(--muted);border-radius:999px;padding:8px 13px;font-size:11px}.older-messages button:hover{color:var(--text);border-color:color-mix(in srgb,var(--red) 38%,var(--line))}
.sessions-list{display:grid;gap:8px;margin-top:12px}.session-row{display:flex;align-items:center;gap:10px;padding:10px 11px;border:1px solid var(--line);border-radius:12px;background:var(--card)}.session-row>div{min-width:0;flex:1}.session-row b,.session-row small{display:block}.session-row b{font-size:12px}.session-row small{margin-top:3px;color:var(--muted);font-size:10px}.session-current{font-size:9px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#93e8b2}.session-row button{width:30px;height:30px;border-radius:9px;border:1px solid var(--line);background:transparent;color:var(--muted)}.session-row button:hover{color:var(--red);border-color:color-mix(in srgb,var(--red) 45%,var(--line))}.danger-outline{margin-top:9px;color:#ff9b9b!important;border-color:rgba(255,80,80,.24)!important}
@media(max-width:1100px){.jump-latest{right:16px;bottom:126px}}@media(max-width:760px){.network-banner{top:58px;font-size:11px}.jump-latest{right:12px;bottom:174px;width:36px;height:36px}}
/* Stage 12Q — research-backed search/tools UX */
.global-search-trigger{width:100%;display:flex;align-items:center;gap:9px;text-align:left;color:var(--muted);cursor:pointer;border:1px solid transparent;font:inherit}
.global-search-trigger>span:nth-child(2){flex:1;font-size:12px}.global-search-trigger kbd{border:1px solid var(--line);border-radius:7px;padding:2px 6px;color:var(--muted);font:600 9px/1.4 system-ui;background:color-mix(in srgb,var(--card) 75%,transparent)}
.global-search-trigger:hover{background:var(--card);border-color:var(--line)}
.tool-pill{height:36px;display:inline-flex;align-items:center;gap:6px;padding:0 10px;border:1px solid transparent;border-radius:999px;background:transparent;color:var(--muted);font:700 11px/1 system-ui;cursor:pointer;transition:.15s;white-space:nowrap}
.tool-pill:hover{background:var(--card);color:var(--text)}.tool-pill.active{border-color:color-mix(in srgb,var(--red) 58%,var(--line));background:color-mix(in srgb,var(--red) 10%,var(--card));color:var(--text)}.tool-pill.unavailable{opacity:.45}.tool-globe{font-size:16px;font-weight:500;line-height:1}
.global-search-overlay{position:fixed;inset:0;z-index:190;display:flex;align-items:flex-start;justify-content:center;padding:10vh 18px 18px;background:rgba(2,4,8,.7);backdrop-filter:blur(9px);opacity:0;pointer-events:none;transition:.15s}
.global-search-overlay.open{opacity:1;pointer-events:auto}.global-search-card{width:min(720px,100%);max-height:min(720px,80vh);display:flex;flex-direction:column;border:1px solid var(--line2);border-radius:22px;background:var(--panel);box-shadow:0 28px 90px rgba(0,0,0,.55);overflow:hidden}
.global-search-head{height:62px;display:flex;align-items:center;gap:11px;padding:0 15px;border-bottom:1px solid var(--line)}.global-search-head .search-icon{font-size:21px}.global-search-head input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--text);font:500 16px/1.2 system-ui}.global-search-head input::placeholder{color:var(--muted)}.global-search-head button{width:34px;height:34px;border:0;border-radius:9px;background:transparent;color:var(--muted);font-size:22px;cursor:pointer}.global-search-head button:hover{background:var(--card);color:var(--text)}
.global-search-tabs{display:flex;gap:5px;padding:9px 12px;border-bottom:1px solid var(--line)}.global-search-tab{height:30px;padding:0 11px;border:0;border-radius:9px;background:transparent;color:var(--muted);font:700 10px system-ui;cursor:pointer}.global-search-tab.active,.global-search-tab:hover{background:var(--card);color:var(--text)}
.global-search-results{min-height:180px;overflow:auto;padding:8px}.global-search-group{padding:8px 8px 4px;color:var(--muted);font:700 9px system-ui;letter-spacing:.12em;text-transform:uppercase}.global-search-item{width:100%;display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:11px;padding:10px;border:0;border-radius:13px;background:transparent;color:var(--text);text-align:left;cursor:pointer}.global-search-item:hover,.global-search-item.selected{background:var(--card)}.global-search-kind{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:14px}.global-search-item b{display:block;font-size:12px}.global-search-item p{margin:3px 0 0;color:var(--muted);font-size:10px;line-height:1.45;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.global-search-item small{color:var(--muted);font-size:9px}.global-search-empty{display:grid;gap:5px;padding:34px 18px;text-align:center;color:var(--muted)}.global-search-empty b{color:var(--text);font-size:13px}.global-search-empty span{font-size:10px;line-height:1.5}.global-search-foot{display:flex;justify-content:flex-end;gap:16px;padding:8px 14px;border-top:1px solid var(--line);color:var(--muted);font-size:9px}
.web-source-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:11px}.web-source{max-width:240px;display:inline-flex;align-items:center;gap:6px;padding:6px 9px;border:1px solid var(--line);border-radius:999px;background:color-mix(in srgb,var(--card) 72%,transparent);color:var(--muted);font:600 9px/1.2 system-ui;text-decoration:none}.web-source:hover{border-color:var(--line2);color:var(--text)}.web-source i{width:17px;height:17px;border-radius:50%;display:grid;place-items:center;background:var(--card);color:var(--text);font-style:normal;font-size:8px}.msg-search-note{display:inline-flex;align-items:center;gap:5px;margin-left:7px;color:var(--muted);font:600 9px system-ui}.inline-link{color:var(--text);text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--red) 58%,transparent);text-underline-offset:3px}
body.light .global-search-card{background:#fff}.global-search-overlay[aria-hidden="true"]{visibility:hidden}.global-search-overlay.open[aria-hidden="false"]{visibility:visible}
@media(max-width:760px){.global-search-overlay{padding:0;align-items:flex-end}.global-search-card{width:100%;max-height:88vh;border-radius:22px 22px 0 0}.global-search-head{height:58px}.global-search-foot{padding-bottom:calc(9px + env(safe-area-inset-bottom))}.tool-pill{width:36px;padding:0;justify-content:center}.tool-pill>span:last-child{display:none}}

/* Stage 12R — source review + focused web search */
.web-search-control{position:relative;display:inline-flex;align-items:center}
.web-search-control .tool-pill{border-radius:999px 0 0 999px;padding-right:8px}
.tool-options-btn{width:26px;height:36px;border:1px solid transparent;border-left:0;border-radius:0 999px 999px 0;background:transparent;color:var(--muted);font:700 13px/1 system-ui;cursor:pointer;transition:.15s}
.web-search-control:hover .tool-pill,.web-search-control:hover .tool-options-btn{background:var(--card);color:var(--text)}
.web-search-control.search-active .tool-pill,.web-search-control.search-active .tool-options-btn{border-color:color-mix(in srgb,var(--red) 58%,var(--line));background:color-mix(in srgb,var(--red) 10%,var(--card));color:var(--text)}
.web-search-control.search-active .tool-options-btn{border-left:0}
.web-search-control.unavailable{opacity:.45}
.web-search-popover{position:absolute;left:0;bottom:46px;width:min(360px,calc(100vw - 28px));padding:14px;border:1px solid var(--line);border-radius:18px;background:var(--panel);box-shadow:var(--shadow);display:none;z-index:55}
.web-search-popover.open{display:block}.web-search-pop-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.web-search-pop-head b{display:block;font-size:13px}.web-search-pop-head span{display:block;margin-top:4px;color:var(--muted);font-size:10px;line-height:1.45}.switch.compact{transform:scale(.84);transform-origin:right top}.web-domain-label{display:block;margin:13px 0 6px;color:var(--muted);font:700 9px/1 system-ui;text-transform:uppercase;letter-spacing:.08em}.web-search-popover textarea{width:100%;resize:vertical;min-height:70px;max-height:130px;padding:10px 11px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--text);outline:0;font:500 12px/1.45 system-ui}.web-search-popover textarea:focus{border-color:var(--line2)}.web-domain-note{margin-top:7px;color:var(--muted);font-size:9px;line-height:1.4}.web-search-pop-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}.web-search-pop-actions button{height:32px;padding:0 11px;border:1px solid var(--line);border-radius:10px;background:transparent;color:var(--text);font:700 10px system-ui;cursor:pointer}.web-search-pop-actions .primary{background:var(--text);color:var(--bg);border-color:transparent}
.web-source-list{align-items:center}.web-source.more-sources{cursor:pointer;color:var(--text);background:var(--card)}
.msg-action.sources-open{display:inline-flex;align-items:center;gap:5px}.msg-action.retry-web{display:inline-flex;align-items:center;gap:5px}
.inline-link.citation-link{position:relative;text-decoration:none;display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 5px;margin:0 2px;border:1px solid var(--line);border-radius:999px;background:var(--card);font:700 9px/1 system-ui;color:var(--text);vertical-align:baseline}
.inline-link.citation-link::after{content:attr(data-source-title) "\A" attr(data-source-host);white-space:pre;position:absolute;left:50%;bottom:calc(100% + 8px);transform:translateX(-50%) translateY(4px);width:max-content;max-width:280px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:var(--panel);box-shadow:var(--shadow);color:var(--text);font:600 10px/1.4 system-ui;opacity:0;pointer-events:none;transition:.14s;z-index:30}
.inline-link.citation-link:hover::after,.inline-link.citation-link:focus-visible::after{opacity:1;transform:translateX(-50%) translateY(0)}
.source-drawer-backdrop{position:fixed;inset:0;border:0;background:rgba(0,0,0,.36);opacity:0;pointer-events:none;transition:.18s;z-index:89}.source-drawer-backdrop.open{opacity:1;pointer-events:auto}
.source-drawer{position:fixed;top:0;right:0;width:min(440px,100vw);height:100dvh;z-index:90;transform:translateX(105%);transition:transform .22s ease;background:var(--panel);border-left:1px solid var(--line);box-shadow:-20px 0 60px rgba(0,0,0,.26);display:flex;flex-direction:column}.source-drawer.open{transform:none}.source-drawer-head{padding:22px 20px 16px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:16px}.source-drawer-head small{color:var(--red);font:700 9px/1 system-ui;letter-spacing:.12em}.source-drawer-head h3{margin:5px 0 3px;font-size:21px}.source-drawer-head span{color:var(--muted);font-size:10px}.source-drawer-list{flex:1;overflow:auto;padding:12px}.source-drawer-item{display:grid;grid-template-columns:30px 1fr auto;gap:10px;align-items:start;padding:13px;border-radius:14px;text-decoration:none;color:var(--text);border:1px solid transparent}.source-drawer-item:hover{background:var(--card);border-color:var(--line)}.source-drawer-index{width:27px;height:27px;border-radius:50%;display:grid;place-items:center;background:var(--card);border:1px solid var(--line);font:700 9px system-ui}.source-drawer-copy b{display:block;font-size:12px;line-height:1.35}.source-drawer-copy span{display:block;margin-top:4px;color:var(--muted);font-size:9px;word-break:break-all}.source-drawer-host{color:var(--muted);font:700 9px system-ui;white-space:nowrap}.source-drawer-empty{padding:28px 18px;color:var(--muted);font-size:11px;line-height:1.6;text-align:center}.source-drawer-foot{padding:12px 18px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--line);color:var(--muted);font-size:9px;line-height:1.45}
body.light .web-search-popover,body.light .source-drawer{box-shadow:0 18px 44px rgba(30,48,70,.12)}
@media(max-width:760px){.tool-options-btn{width:24px;height:34px}.web-search-control .tool-pill{width:34px;padding:0;justify-content:center}.web-search-control .tool-pill>span:last-child{display:none}.web-search-popover{left:-42px;bottom:42px;width:min(340px,calc(100vw - 18px))}.source-drawer{width:100vw}.inline-link.citation-link::after{display:none}}

/* Stage 12U — Projects / Workspaces */
.projects-side{padding:8px 10px 7px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.projects-side-head{height:28px;display:flex;align-items:center;justify-content:space-between;padding:0 5px;color:var(--muted);font:700 9px/1 system-ui;letter-spacing:.1em;text-transform:uppercase}.projects-side-head button{width:26px;height:26px;border:0;border-radius:8px;background:transparent;color:var(--muted);font-size:17px;cursor:pointer}.projects-side-head button:hover{background:var(--card);color:var(--text)}.projects-list{display:grid;gap:2px;max-height:128px;overflow:auto}.project-side-item{width:100%;height:34px;display:grid;grid-template-columns:8px 1fr auto;align-items:center;gap:8px;padding:0 8px;border:0;border-radius:9px;background:transparent;color:var(--muted);text-align:left;cursor:pointer}.project-side-item:hover,.project-side-item.active{background:var(--card);color:var(--text)}.project-side-item>span:nth-child(2){white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font:600 11px system-ui}.project-side-item small{font:600 9px system-ui}.project-dot{width:6px;height:6px;border-radius:50%;background:var(--red);box-shadow:0 0 10px color-mix(in srgb,var(--red) 35%,transparent)}.project-chat-badge{max-width:180px;padding:3px 7px;border:1px solid color-mix(in srgb,var(--red) 42%,var(--line));border-radius:999px;color:var(--muted);font:700 8px/1 system-ui;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.main{position:relative}.project-view{position:absolute;inset:0;z-index:68;background:var(--bg);overflow:auto}.project-view[hidden]{display:none}.project-view-head{position:sticky;top:0;z-index:2;min-height:72px;display:grid;grid-template-columns:42px 1fr auto;align-items:center;gap:12px;padding:10px 22px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(16px)}.project-view-head small{color:var(--red);font:700 8px/1 system-ui;letter-spacing:.12em}.project-view-head h2{margin:4px 0 0;font-size:20px}.project-view-actions{display:flex;gap:8px}.project-view-actions button,.project-card-actions button,.project-section-head button,.project-link-row button,.project-search button{height:34px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--text);font:700 10px system-ui;cursor:pointer}.project-view-actions .danger{color:#ff8585}.project-view .primary{background:var(--text);color:var(--bg);border-color:transparent}.project-view-body{width:min(980px,calc(100% - 34px));margin:22px auto 80px;display:grid;grid-template-columns:1fr 1fr;gap:14px}.project-card{padding:18px;border:1px solid var(--line);border-radius:18px;background:var(--panel)}.project-card.project-wide{grid-column:1/-1}.project-card h3{margin:0;font-size:14px}.project-card p{margin:6px 0 12px;color:var(--muted);font-size:10px;line-height:1.5}.project-card>label:not(.project-toggle){display:block;margin:12px 0 6px;color:var(--muted);font:700 9px system-ui}.project-card textarea,.project-search input,.project-link-row select{width:100%;border:1px solid var(--line);border-radius:11px;background:var(--card);color:var(--text);outline:0;font:500 11px/1.5 system-ui}.project-card textarea{padding:10px;resize:vertical}.project-card-actions{display:flex;justify-content:flex-end;margin-top:10px}.project-toggle{display:flex;align-items:center;gap:9px;margin:12px 0;color:var(--text);font:600 11px system-ui}.project-section-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.project-items{display:grid;gap:6px;margin-top:11px}.project-item{display:grid;grid-template-columns:1fr 32px;gap:7px;align-items:center;border:1px solid var(--line);border-radius:11px;background:var(--card)}.project-item-main{min-width:0;padding:10px 12px;border:0;background:transparent;color:var(--text);text-align:left;text-decoration:none;cursor:pointer}.project-item-main b,.project-search-result b{display:block;font-size:11px}.project-item-main span,.project-search-result span{display:block;margin-top:3px;color:var(--muted);font-size:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.project-item-remove{width:28px;height:28px;border:0;border-radius:8px;background:transparent;color:var(--muted);cursor:pointer}.project-item-remove:hover{background:var(--panel);color:var(--text)}.project-link-row,.project-search{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:10px}.project-link-row select,.project-search input{height:34px;padding:0 10px}.project-empty{padding:14px;color:var(--muted);font-size:10px;text-align:center}.project-search-result{display:block;width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--text);text-decoration:none;text-align:left;cursor:pointer}
@media(max-width:760px){.projects-list{max-height:92px}.project-view-head{grid-template-columns:38px 1fr;padding:9px 12px}.project-view-actions{grid-column:2;justify-content:flex-start}.project-view-body{width:calc(100% - 20px);grid-template-columns:1fr;margin-top:12px}.project-card.project-wide{grid-column:1}.project-section-head{align-items:flex-start}.project-link-row{grid-template-columns:1fr}.project-chat-badge{max-width:100px}}

.msg-action.context-open{display:inline-flex;align-items:center;gap:5px;width:auto;font-size:11px;padding:0 10px}
.context-drawer .source-drawer-head small{color:var(--red)}
.context-drawer-body{flex:1;overflow:auto;padding:16px 18px 20px}
.context-summary{display:flex;flex-direction:column;gap:4px;padding:14px 16px;border:1px solid var(--line);border-radius:16px;background:var(--card)}
.context-summary b{font-size:16px}.context-summary span{color:var(--muted);font-size:11px}
.context-chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 18px}
.context-chip{padding:7px 10px;border-radius:999px;border:1px solid var(--line);background:var(--card);font-size:10px;font-weight:700;letter-spacing:.02em}
.context-chip.good{border-color:rgba(29,201,106,.25)}.context-chip.warn{border-color:rgba(255,193,7,.25)}
.context-section{margin-top:16px}.context-section h4{margin:0 0 10px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.context-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.context-stat{padding:12px;border-radius:14px;border:1px solid var(--line);background:var(--card)}
.context-stat small{display:block;color:var(--muted);font-size:10px;margin-bottom:6px}.context-stat b{font-size:16px}
.context-notes{margin:0;padding-left:18px;color:var(--muted);font-size:12px;line-height:1.6}
.context-notes li+li{margin-top:8px}
.source-drawer-item .source-kind{display:inline-flex;align-items:center;gap:5px;margin-top:6px;padding:4px 7px;border-radius:999px;border:1px solid var(--line);background:var(--panel2);font-size:9px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
@media(max-width:760px){.context-stats{grid-template-columns:1fr}}
.feedback-reasons{margin-top:10px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:var(--card)}.feedback-reasons>span{display:block;color:var(--muted);font-size:10px;margin-bottom:8px}.feedback-reasons>div{display:flex;gap:6px;flex-wrap:wrap}.feedback-reasons button{height:30px;padding:0 9px;border:1px solid var(--line);border-radius:9px;background:transparent;color:var(--muted);font-size:10px;cursor:pointer}.feedback-reasons button:hover,.feedback-reasons button.active{color:var(--text);border-color:color-mix(in srgb,var(--red) 45%,var(--line));background:var(--redSoft)}


/* Stage 13I landing polish */
.topbar{grid-template-columns:minmax(0,1fr) auto!important;column-gap:14px}
.topbar-controls{display:flex;align-items:center;justify-self:end;gap:10px;flex-wrap:wrap}
.topbar-tools{display:none}
.topbar-controls .theme-btn,.topbar-controls .cta-btn,.topbar-controls .top-auth-btn{justify-self:auto}
.hero-actions .btn:only-child{min-width:220px}
.side-row{justify-content:flex-start}
.sidebar-brand{cursor:pointer}
.side-back{display:none!important}
@media (max-width:1100px){.topbar-controls{gap:8px}}
@media (max-width:760px){.topbar-controls{gap:6px}.topbar-controls .theme-btn{width:44px;padding:0;font-size:0}.topbar-controls .theme-btn::before{content:"◐";font-size:18px}.topbar-controls .cta-btn{padding:0 13px;white-space:nowrap}.topbar-controls .top-auth-btn{padding:0 12px}}
@media (max-width:560px){.topbar-controls .cta-btn{font-size:9px;letter-spacing:.08em;padding:0 10px}.topbar-controls .top-auth-btn{padding:0 10px;font-size:10px;height:42px}}

/* Stage 15A: rendering containment and adaptive low-end mode. */
.msg{content-visibility:auto;contain-intrinsic-size:140px}
.project-item,.project-search-result,.global-search-item,.history-item{content-visibility:auto;contain-intrinsic-size:64px}
.perf-lite .reveal{transition-duration:.12s!important}
.perf-lite .glass,.perf-lite .modal-card,.perf-lite .source-drawer,.perf-lite .project-view{backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
.perf-lite .typing i,.perf-lite .msg.streaming .msg-text::after{animation-duration:1.25s}
@media(prefers-reduced-motion:reduce){.msg{content-visibility:visible}.perf-lite .typing i,.perf-lite .msg.streaming .msg-text::after{animation:none!important}}

/* Stage 16A — Public Beta Readiness & Product Polish */
:root{--app-viewport-height:100dvh}
.chat-layout,.main,.sidebar{height:var(--app-viewport-height,100dvh);max-height:var(--app-viewport-height,100dvh)}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[role="button"]:focus-visible{outline:2px solid color-mix(in srgb,var(--red) 78%,#fff);outline-offset:2px}
.network-banner{display:flex;align-items:center;justify-content:center;gap:12px;text-align:left;pointer-events:none}
.network-banner.show{pointer-events:auto}
.network-banner span{min-width:0;line-height:1.4}
.network-banner button{flex:0 0 auto;height:30px;padding:0 10px;border:1px solid rgba(255,255,255,.16);border-radius:9px;background:rgba(255,255,255,.07);color:inherit;font:700 10px system-ui;cursor:pointer}
.network-banner button:hover:not(:disabled){background:rgba(255,255,255,.12)}
.network-banner button:disabled{opacity:.55;cursor:wait}
.network-banner.backend-down{border-color:rgba(235,168,54,.3);background:rgba(41,29,9,.96);color:#ffe9bc}
.beta-onboarding{width:min(690px,100%);margin-top:18px;padding:13px;border:1px solid var(--line);border-radius:15px;background:color-mix(in srgb,var(--card) 78%,transparent);text-align:left}
.beta-onboarding-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.beta-onboarding-head>div{display:grid;gap:4px}.beta-onboarding-head small{color:var(--red);font:800 8px/1 system-ui;letter-spacing:.13em}.beta-onboarding-head b{font:700 12px/1.35 system-ui}.beta-onboarding-head>button{width:28px;height:28px;border:0;border-radius:8px;background:transparent;color:var(--muted);font-size:18px;cursor:pointer}.beta-onboarding-head>button:hover{background:var(--panel);color:var(--text)}
.beta-onboarding-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:11px}.beta-onboarding-steps>span{display:grid;grid-template-columns:24px 1fr;column-gap:7px;align-items:center;padding:9px;border-radius:11px;background:color-mix(in srgb,var(--panel) 82%,transparent)}.beta-onboarding-steps i{grid-row:1/3;width:24px;height:24px;display:grid;place-items:center;border:1px solid color-mix(in srgb,var(--red) 40%,var(--line));border-radius:8px;color:var(--red);font:800 9px system-ui;font-style:normal}.beta-onboarding-steps b{font:700 10px system-ui}.beta-onboarding-steps small{margin-top:2px;color:var(--muted);font:500 8.5px/1.35 system-ui}.beta-onboarding-dismissed .beta-onboarding{display:none}
.composer-note{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}.draft-status{display:none;padding-left:9px;border-left:1px solid var(--line);color:color-mix(in srgb,var(--muted) 78%,#78d898 22%)}.draft-status.show{display:inline}
.beta-diagnostics-actions{display:flex;justify-content:flex-start;margin-top:11px}.beta-diagnostics-setting .setting-row strong{white-space:nowrap;color:var(--muted)}
.project-side-empty{width:100%;min-height:42px;display:flex;align-items:center;justify-content:center;gap:6px;padding:7px 8px;border:1px dashed var(--line);border-radius:10px;background:transparent;color:var(--muted);font:700 10px system-ui;cursor:pointer}.project-side-empty:hover{background:var(--card);color:var(--text);border-color:var(--line2)}
.project-empty-action{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}.project-empty-action button{height:30px;padding:0 9px;border:1px solid var(--line);border-radius:9px;background:var(--panel);color:var(--text);font:700 9px system-ui;cursor:pointer}.project-empty-action button:hover{border-color:var(--line2)}
.composer[aria-busy="true"] .composer-icon-btn,.composer[aria-busy="true"] .tool-pill,.composer[aria-busy="true"] .tool-options-btn,.composer[aria-busy="true"] .model-btn{opacity:.55;pointer-events:none}
@media(max-width:760px){.network-banner{width:calc(100% - 16px);align-items:flex-start;justify-content:space-between;padding:8px 9px}.network-banner button{height:28px;padding:0 8px;font-size:9px}.beta-onboarding{margin-top:14px;padding:10px}.beta-onboarding-steps{grid-template-columns:1fr;gap:5px}.beta-onboarding-steps>span{padding:8px}.composer-note{gap:6px}.draft-status{padding-left:0;border-left:0;width:100%;text-align:center}.beta-diagnostics-actions .settings-plan-btn{width:100%}}
@media(prefers-reduced-motion:reduce){.network-banner,.beta-onboarding,.draft-status{transition:none!important}}

/* Stage 16B — closed beta operations */
.beta-feedback-setting{display:flex;flex-direction:column;gap:10px}.beta-feedback-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.beta-feedback-grid label{display:grid;gap:5px;color:var(--muted);font-size:10px}.beta-feedback-grid select,.beta-feedback-setting textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--text);font:inherit}.beta-feedback-grid select{height:36px;padding:0 9px}.beta-feedback-setting textarea{padding:10px;resize:vertical;min-height:82px;line-height:1.45}.beta-diagnostics-opt{display:flex;gap:8px;align-items:flex-start;color:var(--muted);font-size:10px;line-height:1.45}.beta-diagnostics-opt input{margin-top:2px;accent-color:var(--red)}.beta-release-note{padding:9px 10px;border:1px solid var(--line);border-radius:10px;background:color-mix(in srgb,var(--card) 84%,transparent);font-size:10px;line-height:1.5;color:var(--muted)}.beta-feedback-history{display:grid;gap:6px}.beta-feedback-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 9px;border:1px solid var(--line);border-radius:10px;background:var(--card)}.beta-feedback-row b,.beta-feedback-row span{display:block}.beta-feedback-row b{font-size:10px}.beta-feedback-row span{margin-top:2px;color:var(--muted);font-size:9px}.beta-feedback-row strong{font-size:9px;color:var(--muted);text-transform:uppercase}@media(max-width:620px){.beta-feedback-grid{grid-template-columns:1fr}}
/* Stage 16C: Project Memory, pinned project rules and artifact quota UI */
.project-memory-meter{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:10px 0;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:var(--card)}.project-memory-meter>div{min-width:0;display:grid;gap:3px}.project-memory-meter b{font:700 10px/1.3 system-ui}.project-memory-meter span,.project-help{color:var(--muted);font:500 9px/1.45 system-ui}.project-memory-meter button{height:30px;padding:0 10px;border:1px solid color-mix(in srgb,#ff5d5d 35%,var(--line));border-radius:9px;background:transparent;color:#ff8585;font:700 9px system-ui;cursor:pointer;white-space:nowrap}.project-rules-file{display:grid;gap:6px;margin-top:12px}.project-rules-file label{color:var(--muted);font:700 9px system-ui}.project-rules-file select{width:100%;height:36px;padding:0 10px;border:1px solid var(--line);border-radius:11px;background:var(--card);color:var(--text);outline:0;font:600 10px system-ui}.project-help{display:block;margin-top:6px}.project-memory-meter button:focus-visible,.project-rules-file select:focus-visible{outline:2px solid var(--text);outline-offset:2px}
@media(max-width:560px){.project-memory-meter{align-items:flex-start;flex-direction:column}.project-memory-meter button{width:100%}}
.project-memory-controls{display:grid;grid-template-columns:minmax(140px,190px) minmax(0,1fr);gap:10px;margin:10px 0}.project-memory-controls>label:not(.project-toggle){display:grid;gap:5px;color:var(--muted);font:700 9px system-ui}.project-memory-controls select{height:36px;padding:0 10px;border:1px solid var(--line);border-radius:11px;background:var(--card);color:var(--text);font:600 10px system-ui;outline:0}.project-toggle.compact{margin:0;align-self:end;min-height:36px}.project-memory-topics-wrap{margin:14px 0;padding:12px;border:1px solid var(--line);border-radius:14px;background:color-mix(in srgb,var(--card) 88%,transparent)}.project-memory-topics-wrap h4{margin:0;font:750 11px/1.3 system-ui}.project-memory-topics-wrap .project-section-head p{margin:3px 0 0}.project-memory-topics{display:grid;gap:8px;margin-top:10px}.memory-topic{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:10px;border:1px solid var(--line);border-radius:11px;background:var(--card)}.memory-topic-main{min-width:0;display:grid;gap:4px}.memory-topic-head{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.memory-topic-type,.memory-topic-pin{display:inline-flex;align-items:center;min-height:20px;padding:0 7px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font:700 8px/1 system-ui}.memory-topic-pin{color:var(--text)}.memory-topic-text{white-space:pre-wrap;overflow-wrap:anywhere;font:600 10px/1.45 system-ui}.memory-topic-source{display:flex;gap:6px;align-items:center;flex-wrap:wrap;color:var(--muted);font:500 8.5px/1.35 system-ui}.memory-topic-source button{padding:0;border:0;background:none;color:inherit;text-decoration:underline;cursor:pointer;font:inherit}.memory-topic-actions{display:flex;align-items:flex-start;gap:5px}.memory-topic-actions button{height:28px;padding:0 8px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--text);font:700 8px system-ui;cursor:pointer}.memory-topic-actions button.danger{color:#ff8585}.memory-topic-actions button:focus-visible,.project-memory-controls select:focus-visible{outline:2px solid var(--text);outline-offset:2px}
@media(max-width:650px){.project-memory-controls{grid-template-columns:1fr}.memory-topic{grid-template-columns:1fr}.memory-topic-actions{justify-content:flex-start;flex-wrap:wrap}}

/* Stage 16I — account memory */
.account-memory-controls{display:grid;grid-template-columns:minmax(140px,190px) minmax(0,1fr);gap:10px;margin:12px 0}.account-memory-controls>label:first-child{display:grid;gap:5px;color:var(--muted);font:700 9px system-ui}.account-memory-controls select{height:36px;padding:0 10px;border:1px solid var(--line);border-radius:11px;background:var(--card);color:var(--text);font:600 10px system-ui;outline:0}.account-memory-actions{display:flex;gap:7px;flex-wrap:wrap;margin:10px 0}.account-memory-topics{display:grid;gap:8px;max-height:330px;overflow:auto;padding-right:2px}.account-memory-topics .memory-topic{background:color-mix(in srgb,var(--card) 94%,transparent)}@media(max-width:650px){.account-memory-controls{grid-template-columns:1fr}.account-memory-actions>button{flex:1 1 120px}}

.memory-topic-source-btn{border:0;background:transparent;padding:0;color:inherit;font:inherit;text-decoration:underline;text-underline-offset:2px;cursor:pointer}.memory-topic-source-btn:hover{opacity:.8}.memory-topic-source-btn:focus-visible{outline:2px solid currentColor;outline-offset:3px;border-radius:3px}

/* Stage 16J.4 — explicit model picker */
.model-menu{width:390px;max-height:min(70vh,560px);overflow:auto}
.model-group-label{padding:8px 12px 4px;color:var(--muted);font-size:9px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.model-item small.model-cost{display:block;margin-top:4px;color:var(--muted);font-size:9.5px;line-height:1.25;font-weight:600}
.model-item .model-tag-green{background:rgba(38,168,105,.12);color:#73d9a4}
body.light .model-item .model-tag-green{color:#157c4b}
@media(max-width:760px){.model-menu{width:min(360px,calc(100vw - 24px));max-height:min(62vh,500px)}}

/* Stage 16K.1 — staged Project patches */
.project-patches{display:grid;gap:9px;margin-top:12px}.project-patch{border:1px solid var(--line);border-radius:13px;background:var(--card);overflow:hidden}.project-patch-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:11px 12px}.project-patch-head b{display:block;font-size:11px}.project-patch-head span{display:block;margin-top:3px;color:var(--muted);font-size:9px}.project-patch-status{padding:4px 7px!important;margin:0!important;border-radius:999px;background:var(--panel);font:700 8px/1 system-ui!important;white-space:nowrap}.project-patch-status.pending{color:#e9b95d}.project-patch-status.applied{color:#74c98a}.project-patch-status.rejected,.project-patch-status.expired{color:var(--muted)}.project-patch-status.rolled_back{color:#9eb6ff}.project-patch-reason,.project-patch-rationale{padding:0 12px 10px;color:var(--muted);font-size:10px;line-height:1.45}.project-patch-preview{max-height:250px;overflow:auto;margin:0 12px 11px;padding:10px;border:1px solid var(--line);border-radius:10px;background:var(--panel);white-space:pre-wrap;word-break:break-word;font:500 9px/1.45 ui-monospace,SFMono-Regular,Consolas,monospace}.project-patch-actions{display:flex;justify-content:flex-end;gap:7px;padding:0 12px 12px}.project-patch-actions button{height:30px;padding:0 10px;border:1px solid var(--line);border-radius:9px;background:var(--panel);color:var(--text);font:700 9px system-ui;cursor:pointer}.project-patch-actions .apply{background:var(--text);color:var(--bg);border-color:transparent}.project-patch-actions .reject{color:#ff8b8b}.message-patch{margin-top:10px;padding:10px 11px;border:1px solid color-mix(in srgb,var(--red) 35%,var(--line));border-radius:12px;background:color-mix(in srgb,var(--card) 92%,transparent)}.message-patch b{display:block;font-size:10px}.message-patch small{display:block;margin-top:3px;color:var(--muted);font-size:9px}.message-patch-actions{display:flex;gap:7px;margin-top:8px}.message-patch-actions button{height:28px;padding:0 9px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--text);font:700 9px system-ui;cursor:pointer}.message-patch-actions .apply{background:var(--text);color:var(--bg);border-color:transparent}

.message-patch-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.message-patch-head span{color:var(--muted);font-size:9px}.message-patch-rationale{margin-top:6px;color:var(--muted);font-size:9px;line-height:1.45}.message-patch details{margin-top:7px}.message-patch summary{cursor:pointer;color:var(--muted);font-size:9px}.message-patch pre{max-height:220px;overflow:auto;margin:7px 0 0;padding:9px;border:1px solid var(--line);border-radius:9px;background:var(--panel);white-space:pre-wrap;word-break:break-word;font:500 9px/1.45 ui-monospace,SFMono-Regular,Consolas,monospace}.message-patch-actions span{align-self:center;color:var(--muted);font-size:9px}

/* Stage 16K.2 — batch approval UX */
.project-patch-approval-setting{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin:10px 0 12px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.project-patch-approval-setting label{display:grid;gap:5px;min-width:min(360px,100%)}.project-patch-approval-setting label>span{font:700 9px/1.2 system-ui;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.project-patch-approval-setting select{height:34px;border:1px solid var(--line);border-radius:9px;background:var(--card);color:var(--text);padding:0 9px;font:600 10px system-ui}.project-patch-approval-setting small{max-width:420px;color:var(--muted);font-size:9px;line-height:1.45}.project-patch-batchbar,.message-patch-batchbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:11px;background:var(--panel)}.project-patch-batchbar{margin-bottom:9px}.message-patch-batchbar{margin-top:10px}.project-patch-batchbar span,.message-patch-batchbar span{color:var(--muted);font-size:9px}.project-patch-batch-actions,.message-patch-batch-actions{display:flex;gap:7px;flex-wrap:wrap}.project-patch-batch-actions button,.message-patch-batch-actions button{height:30px;padding:0 10px;border:1px solid var(--line);border-radius:9px;background:var(--card);color:var(--text);font:700 9px system-ui;cursor:pointer}.project-patch-batch-actions .apply,.message-patch-batch-actions .apply{background:var(--text);color:var(--bg);border-color:transparent}.project-patch-batch-actions .reject,.message-patch-batch-actions .reject{color:#ff8b8b}@media(max-width:720px){.project-patch-approval-setting,.project-patch-batchbar,.message-patch-batchbar{align-items:stretch;flex-direction:column}.project-patch-approval-setting label{min-width:0}.project-patch-batch-actions button,.message-patch-batch-actions button{flex:1}}

.referral-setting{display:flex;flex-direction:column;gap:10px}.referral-setting .setting-row strong{font-size:10px;color:var(--muted);white-space:nowrap}.referral-link-row{display:flex;gap:8px;align-items:center}.referral-link-row input{min-width:0;flex:1;border:1px solid var(--line);border-radius:11px;background:var(--card);color:var(--text);padding:10px 11px;font:inherit;font-size:10px}.referral-link-row .settings-plan-btn{flex:0 0 auto}@media(max-width:620px){.referral-link-row{align-items:stretch;flex-direction:column}.referral-link-row .settings-plan-btn{width:100%}}