:root,[data-theme=dark]{--bg:#0e0e10;--bg-soft:#141417;--surface:#18181b;--surface-2:#1f1f23;--text:#f4f4f2;--text-muted:#9a9aa1;--border:#2a2a2e;--accent:#e8ff47;--accent-ink:#0f0f0f;--radius:18px;--shadow:0 1px 2px rgba(0,0,0,.3),0 12px 40px rgba(0,0,0,.35)}[data-theme=light]{--bg:#f5f5f3;--bg-soft:#efefec;--surface:#fff;--surface-2:#f7f7f4;--text:#0f0f0f;--text-muted:#5a5a5a;--border:#e6e6e2;--accent:#e8ff47;--accent-ink:#0f0f0f;--shadow:0 1px 2px hsla(0,0%,6%,.04),0 12px 40px hsla(0,0%,6%,.08)}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:DM Sans,system-ui,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100vh;background-image:radial-gradient(60% 50% at 50% 0,rgba(232,255,71,.06),transparent 70%)}h1,h2,h3{font-family:Bricolage Grotesque,system-ui,sans-serif;letter-spacing:-.03em}.app-shell{display:flex;min-height:100vh}.sidebar{width:256px;flex-shrink:0;background:var(--bg-soft);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:16px 12px;position:-webkit-sticky;position:sticky;top:0;height:100vh;z-index:40}.sidebar-brand{padding:6px 8px 18px}.sidebar-nav{display:flex;flex-direction:column;gap:4px}.chat-list{flex:1 1;min-height:0;display:flex;flex-direction:column;margin-top:16px;border-top:1px solid var(--border);padding-top:12px}.chat-new{background:transparent;border:1px dashed var(--border);color:var(--text-muted);border-radius:10px;padding:9px 12px;font-family:inherit;font-size:13px;font-weight:600;cursor:pointer;margin-bottom:8px;transition:all .12s ease}.chat-new:hover{border-color:var(--accent);color:var(--accent)}.chat-list-scroll{flex:1 1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:2px}.chat-list-item{display:flex;align-items:center;gap:6px;padding:9px 10px;border-radius:8px;cursor:pointer;transition:background .12s ease}.chat-list-item.active,.chat-list-item:hover{background:var(--surface)}.chat-list-title{flex:1 1;font-size:13px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-del{background:none;border:none;color:var(--text-muted);font-size:16px;line-height:1;cursor:pointer;opacity:0;padding:0 2px}.chat-list-item:hover .chat-del{opacity:1}.chat-del:hover{color:#ff6b6b}.chat-list-empty{font-size:12px;color:var(--text-muted);padding:8px 10px;margin:0}.nav-item{display:flex;align-items:center;gap:11px;width:100%;text-align:left;padding:11px 12px;border:none;border-radius:10px;background:transparent;color:var(--text-muted);font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background .12s ease,color .12s ease}.nav-item:hover{background:var(--surface);color:var(--text)}.nav-item.active{background:var(--accent);color:var(--accent-ink)}.nav-ico{flex-shrink:0}.sidebar-foot{display:flex;flex-direction:column;gap:12px;padding-top:12px;border-top:1px solid var(--border)}.sidebar-foot .authbar{flex-wrap:wrap}.sidebar-foot .btn-pill-sm{width:100%}.sidebar-foot-row{display:flex;align-items:center;justify-content:space-between}.sidebar-legal a{font-size:12px;color:var(--text-muted);margin-left:12px;text-decoration:none}.sidebar-legal a:hover{color:var(--accent)}.nav-scrim{display:none}.main{flex:1 1;min-width:0;display:flex;flex-direction:column}.main-top{display:none}.main-inner{width:100%;max-width:760px;margin:0 auto;padding:30px 22px 90px}.welcome{text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 22px;box-shadow:var(--shadow)}.welcome h2{font-size:clamp(24px,4vw,32px);margin:14px 0 8px}.welcome .lead{margin-bottom:6px}@media (max-width:860px){.sidebar{position:fixed;left:0;top:0;transform:translateX(-100%);transition:transform .2s ease;box-shadow:0 0 40px rgba(0,0,0,.4)}.sidebar.open{transform:translateX(0)}.nav-scrim{display:block;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:35}.main-top{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border);position:-webkit-sticky;position:sticky;top:0;background:color-mix(in srgb,var(--bg) 85%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:10}.hamburger{background:var(--surface);border:1px solid var(--border);border-radius:9px;width:38px;height:38px;font-size:18px;color:var(--text);cursor:pointer}.main-title{font-family:Bricolage Grotesque,sans-serif;font-weight:700;font-size:16px}.main-inner{padding:20px 16px 80px}}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:14px 20px;background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.brand-mini{font-family:Bricolage Grotesque,sans-serif;font-weight:800;font-size:17px;letter-spacing:-.02em}.brand-mini .ai{color:var(--accent-ink);background:var(--accent);padding:1px 6px;border-radius:7px;margin-left:1px}.topbar-right{display:flex;align-items:center;gap:10px}.theme-toggle{background:var(--surface-2);border:1px solid var(--border);border-radius:999px;width:36px;height:36px;font-size:15px;cursor:pointer;display:grid;place-items:center;transition:border-color .15s ease}.theme-toggle:hover{border-color:var(--accent)}.stage{max-width:680px;margin:0 auto;padding:8vh 22px 80px;display:flex;flex-direction:column;align-items:center;text-align:center}.hero{margin-bottom:26px}.pill{display:inline-flex;align-items:center;gap:8px;background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);font-size:12px;font-weight:600;letter-spacing:.03em;padding:6px 13px;border-radius:999px}[data-theme=light] .pill{color:#5a6800}.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(232,255,71,.5)}70%{box-shadow:0 0 0 7px rgba(232,255,71,0)}to{box-shadow:0 0 0 0 rgba(232,255,71,0)}}.hero h1{font-size:clamp(38px,8vw,60px);margin:18px 0 10px;line-height:1}.hero h1 .ai{color:var(--accent-ink);background:var(--accent);padding:0 10px;border-radius:12px}.lead{color:var(--text-muted);font-size:17px;margin:0 auto;max-width:460px;line-height:1.5}.tabs{display:inline-flex;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:5px;margin-bottom:22px;box-shadow:var(--shadow)}.tab{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;background:transparent;color:var(--text-muted);font-family:inherit;font-size:14px;font-weight:600;padding:10px 22px;border-radius:999px;cursor:pointer;transition:all .15s ease}.tab:hover{color:var(--text)}.tab.active{background:var(--accent);color:var(--accent-ink)}.stage-body{width:100%;text-align:left}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.panel+.panel{margin-top:16px}label.field-label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px}input[type=email],input[type=password],input[type=text],select,textarea{width:100%;font-family:inherit;font-size:15px;color:var(--text);background:var(--bg-soft);border:1px solid var(--border);border-radius:12px;padding:13px 15px;resize:vertical;transition:border-color .15s ease,box-shadow .15s ease}input[type=email]:focus,input[type=password]:focus,input[type=text]:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 35%,transparent)}.prompt textarea{font-size:16px;padding:16px 18px;border-radius:14px;min-height:86px}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.hint{font-size:13px;color:var(--text-muted);margin:8px 0 0}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;font-family:inherit;font-size:15px;font-weight:700;background:var(--accent);color:var(--accent-ink);padding:13px 24px;border-radius:999px;cursor:pointer;transition:transform .1s ease,filter .15s ease}.btn:hover{filter:brightness(1.06)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text);font-weight:600;padding:8px 16px;font-size:13px}.btn-pill-sm{padding:8px 18px;font-size:13px}.answer{white-space:pre-wrap;line-height:1.65;font-size:16px}.answer a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}[data-theme=light] .answer a{color:var(--accent-ink);-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent);text-decoration-thickness:3px}.meta{font-size:12px;color:var(--text-muted);margin-top:14px;padding-top:14px;border-top:1px dashed var(--border)}.copy-card{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:12px;padding:18px 18px 14px}.copy-card+.copy-card{margin-top:14px}.copy-text{white-space:pre-wrap;line-height:1.6;font-size:15px;margin:0 0 12px}.copy-actions{display:flex;justify-content:flex-end}.spinner{width:18px;height:18px;border:2px solid color-mix(in srgb,var(--text) 25%,transparent);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(1turn)}}.error-box{background:color-mix(in srgb,#ff5a5a 14%,var(--surface));border:1px solid color-mix(in srgb,#ff5a5a 40%,transparent);color:#ff8585;border-radius:12px;padding:12px 14px;font-size:14px}.empty{color:var(--text-muted);font-size:15px;text-align:center;padding:28px 0}.suggestions{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:14px}.chip{background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:8px 15px;font-size:13px;color:var(--text);cursor:pointer;transition:all .12s ease}.chip:hover{border-color:var(--accent);color:var(--accent)}.authbar{display:flex;align-items:center;gap:8px}.authbar-usage{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);border-radius:999px;padding:6px 12px;font-size:12px;font-weight:700;white-space:nowrap}[data-theme=light] .authbar-usage{color:#5a6800}.authbar-logout{background:transparent;border:1px solid var(--border);color:var(--text-muted);border-radius:999px;padding:6px 14px;font-size:12px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .15s ease}.authbar-logout:hover{border-color:var(--accent);color:var(--accent)}.footer{border-top:1px solid var(--border);margin-top:20px}.footer-inner{max-width:680px;margin:0 auto;padding:22px;font-size:13px;color:var(--text-muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}.footer a{color:var(--text);font-weight:700}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--accent);color:var(--accent-ink);padding:14px 22px;border-radius:999px;font-weight:700;font-size:14px;box-shadow:0 10px 30px rgba(0,0,0,.35);z-index:60;animation:fade .2s ease}.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.6);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:50;animation:fade .15s ease}@keyframes fade{0%{opacity:0}to{opacity:1}}.modal{position:relative;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:0 24px 70px rgba(0,0,0,.5);padding:30px;width:100%;max-width:420px;text-align:left}.modal h2{font-size:22px}.modal-close{position:absolute;top:14px;right:16px;background:transparent;border:none;font-size:26px;line-height:1;color:var(--text-muted);cursor:pointer}.modal-close:hover{color:var(--text)}.legal-wrap{max-width:720px;margin:0 auto;padding:6vh 22px 80px}.legal{color:var(--text)}.legal h1{font-size:clamp(28px,5vw,38px);margin:14px 0 6px}.legal-date{color:var(--text-muted);font-size:13px;margin:0 0 28px}.legal h2{font-size:19px;margin:30px 0 10px}.legal p{line-height:1.65;color:var(--text);margin:0 0 12px}.legal ul{line-height:1.6;padding-left:22px;display:flex;flex-direction:column;gap:8px;margin:0 0 12px}.legal a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;word-break:break-word}[data-theme=light] .legal a{color:#5a6800}.chat{display:flex;flex-direction:column;gap:12px}.chat-intro{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.chat-thread{display:flex;flex-direction:column;gap:14px}.bubble-user{align-self:flex-end;max-width:85%;background:var(--accent);color:var(--accent-ink);padding:11px 16px;border-radius:16px 16px 4px 16px;font-weight:600;font-size:15px;line-height:1.45;white-space:pre-wrap}.bubble-ai{align-self:flex-start;max-width:92%;background:var(--surface);border:1px solid var(--border);padding:14px 18px;border-radius:16px 16px 16px 4px;font-size:15px;box-shadow:var(--shadow)}.md{line-height:1.6}.md p{margin:0 0 10px}.md p:last-child{margin-bottom:0}.md strong{font-weight:700}.md ol,.md ul{margin:0 0 10px;padding-left:22px;display:flex;flex-direction:column;gap:8px}.md a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;font-weight:600;word-break:break-word}[data-theme=light] .md a{color:#5a6800}.md h1,.md h2,.md h3{font-size:17px;margin:4px 0 8px}.chat-input{display:flex;gap:10px;align-items:flex-end;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:10px;box-shadow:var(--shadow)}.chat-input textarea{border:none;background:transparent;box-shadow:none;padding:8px;min-height:24px;max-height:160px;font-size:15px}.chat-input textarea:focus{outline:none;box-shadow:none;border:none}.chat-input .btn{flex-shrink:0}.chat-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:0 4px}.chat-clear{background:none;border:none;color:var(--text-muted);font-family:inherit;font-size:13px;font-weight:600;cursor:pointer}.chat-clear:hover{color:var(--accent)}.previews{display:flex;flex-direction:column;gap:8px;margin-top:12px}.preview-inline{margin:8px 0 4px}.md li .preview-inline .preview-card{background:var(--surface)}.preview-card{display:flex;gap:12px;align-items:stretch;background:var(--bg-soft);border:1px solid var(--border);border-radius:12px;overflow:hidden;text-decoration:none;color:var(--text);transition:border-color .15s ease}.preview-card:hover{border-color:var(--accent)}.preview-img{width:96px;flex-shrink:0;background-size:cover;background-position:50%;background-color:var(--surface-2)}.preview-body{padding:10px 12px;min-width:0}.preview-site{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:3px}.preview-title{font-weight:600;font-size:14px;line-height:1.35}.preview-desc,.preview-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.preview-desc{font-size:12px;color:var(--text-muted);margin-top:4px}.cmp-preview{display:block;text-decoration:none;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:10px;margin:4px 0 14px;transition:border-color .15s ease}.cmp-preview:hover{border-color:var(--accent)}.cmp-pre-top{display:flex;align-items:center;gap:8px;margin-bottom:8px}.cmp-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover;flex-shrink:0}.cmp-avatar-ph{display:grid;place-items:center;background:#0a66c2;color:#fff;font-size:11px;font-weight:800}.cmp-pre-author{font-weight:700;white-space:nowrap;text-overflow:ellipsis}.cmp-pre-author,.cmp-pre-text{font-size:13px;overflow:hidden}.cmp-pre-text{line-height:1.45;color:var(--text);white-space:pre-wrap;display:-webkit-box;-webkit-line-clamp:6;-webkit-box-orient:vertical}.cmp-pre-img{margin-top:8px;height:120px;border-radius:8px;background-size:cover;background-position:50%;background-color:var(--surface-2)}.cmp{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}.cmp-col{border:1px solid var(--border);border-radius:12px;padding:16px;background:var(--bg-soft)}.cmp-win{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 30%,transparent)}.cmp-head{font-family:Bricolage Grotesque,sans-serif;font-weight:700;font-size:16px;margin-bottom:4px}.cmp-badge{margin-left:4px}.cmp-author{font-size:12px;color:var(--text-muted);margin-bottom:12px}.cmp-stat{display:flex;justify-content:space-between;align-items:center;font-size:14px;padding:7px 0;border-bottom:1px solid var(--border)}.cmp-stat span{color:var(--text-muted)}.cmp-stat strong{font-size:16px}.cmp-link{display:inline-block;margin-top:12px;font-size:13px;font-weight:600;color:var(--accent)}[data-theme=light] .cmp-link{color:#5a6800}@media (max-width:480px){.cmp{grid-template-columns:1fr}}.btn-google{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;background:#fff;color:#1f1f1f;border:1px solid #dadce0;border-radius:999px;padding:12px 20px;font-family:inherit;font-size:15px;font-weight:600;cursor:pointer;transition:background .15s ease}.btn-google:hover{background:#f7f8f8}.btn-google:disabled{opacity:.6;cursor:not-allowed}.login-divider{display:flex;align-items:center;text-align:center;color:var(--text-muted);font-size:12px;margin:16px 0}.login-divider:after,.login-divider:before{content:"";flex:1 1;border-bottom:1px solid var(--border)}.login-divider span{padding:0 12px}.login-switch{display:flex;gap:8px;justify-content:center;align-items:center;margin-top:16px;flex-wrap:wrap}.login-switch button{background:none;border:none;color:var(--text-muted);font-family:inherit;font-size:13px;font-weight:600;cursor:pointer;padding:4px}.login-switch button:hover{color:var(--accent)}.login-switch span{color:var(--border)}.consent{display:flex;gap:10px;align-items:flex-start;margin-top:16px;font-size:13px;color:var(--text-muted);cursor:pointer;line-height:1.4}.consent input{width:16px;height:16px;margin-top:1px;accent-color:var(--accent);flex-shrink:0}.account-wrap{min-height:100vh;display:flex;align-items:flex-start;justify-content:center;padding:8vh 20px 60px}.account-card{width:100%;max-width:520px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}.account-card h1{font-size:30px;margin:0 0 22px}.back-link{color:var(--text-muted);text-decoration:none;font-size:13px;font-weight:600}.back-link:hover{color:var(--accent)}.account-rows{display:flex;flex-direction:column;gap:2px}.account-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:13px 0;border-bottom:1px solid var(--border)}.account-row-label{color:var(--text-muted);font-size:14px}.account-row-value{font-weight:600;text-align:right}.plan-badge{background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:5px 12px;font-size:12px;font-weight:700}.plan-badge.pro{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.account-actions{display:flex;flex-direction:column;gap:10px;margin-top:24px}.account-actions .btn{width:100%}@media (max-width:560px){.tabs{width:100%;justify-content:center}.tab{flex:1 1;text-align:center;padding:10px 8px}}@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}