@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";
:root{--sidebar-width:306px;--sidebar-width-collapsed:78px;--bg-0:#fff;--bg-1:#f7f7f8;--bg-2:#f3f4f6;--ink:#1f2937;--ink-soft:#6b7280;--stroke:#e5e7eb;--surface:#fff;--surface-strong:#fff;--surface-muted:#f9fafb;--chat-user-bg:#f3f4f6;--chat-assistant-bg:#fff;--sidebar-bg:#f9fafb;--sidebar-ink:#111827;--sidebar-soft:#6b7280;--sidebar-section-bg:#fff;--sidebar-section-border:#e5e7eb;--primary-0:#10a37f;--primary-1:#0e8f70;--primary-2:#55c7ab;--primary-button:#10a37f;--primary-button-hover:#0e8f70;--danger:#dc2626;--success:#16a34a;--warning:#ca8a04;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 10px #0000000f;--shadow-lg:0 14px 30px #00000029;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--app-bg:radial-gradient(1200px 720px at -8% -18%, color-mix(in srgb, var(--primary-2) 18%, transparent 82%), transparent 66%), radial-gradient(980px 540px at 112% -24%, color-mix(in srgb, var(--primary-0) 15%, transparent 85%), transparent 64%), linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 46%);--surface-shadow:0 1px 2px #0f172a0a, 0 8px 24px #0f172a12;--surface-shadow-hover:0 2px 4px #0f172a0f, 0 12px 28px #0f172a1a;--focus-ring:color-mix(in srgb, var(--primary-0) 34%, transparent 66%);--button-shadow:0 1px 2px #0f172a14;--button-shadow-hover:0 4px 12px #0f172a24;--primary-button-gradient:linear-gradient(180deg, color-mix(in srgb, var(--primary-button) 88%, #fff 12%) 0%, var(--primary-button) 100%);--primary-button-gradient-hover:linear-gradient(180deg, color-mix(in srgb, var(--primary-button-hover) 84%, #fff 16%) 0%, var(--primary-button-hover) 100%)}:root[data-theme=dark]{--bg-0:#212121;--bg-1:#1f1f1f;--bg-2:#1a1a1a;--ink:#ececec;--ink-soft:#a3a3a3;--stroke:#343434;--surface:#2a2a2a;--surface-strong:#2f2f2f;--surface-muted:#262626;--chat-user-bg:#2f2f2f;--chat-assistant-bg:#212121;--sidebar-bg:#171717;--sidebar-ink:#f4f4f5;--sidebar-soft:#a1a1aa;--sidebar-section-bg:#1f1f1f;--sidebar-section-border:#323232;--primary-0:#10a37f;--primary-1:#0e8f70;--primary-2:#55c7ab;--primary-button:#10a37f;--primary-button-hover:#0e8f70;--danger:#f87171;--success:#4ade80;--warning:#facc15;--shadow-sm:0 1px 2px #00000059;--shadow-md:0 6px 14px #00000061;--shadow-lg:0 20px 40px #0000008f;--app-bg:radial-gradient(1200px 720px at -8% -18%, color-mix(in srgb, var(--primary-2) 14%, transparent 86%), transparent 68%), radial-gradient(980px 540px at 112% -24%, color-mix(in srgb, var(--primary-0) 14%, transparent 86%), transparent 66%), linear-gradient(180deg, #1d1d1f 0%, var(--bg-0) 48%);--surface-shadow:0 1px 2px #00000057, 0 8px 28px #00000057;--surface-shadow-hover:0 2px 4px #00000061, 0 14px 32px #00000070;--focus-ring:color-mix(in srgb, var(--primary-2) 38%, transparent 62%);--button-shadow:0 1px 3px #00000052;--button-shadow-hover:0 6px 16px #0000006b;--primary-button-gradient:linear-gradient(180deg, color-mix(in srgb, var(--primary-button) 82%, #fff 18%) 0%, var(--primary-button) 100%);--primary-button-gradient-hover:linear-gradient(180deg, color-mix(in srgb, var(--primary-button-hover) 80%, #fff 20%) 0%, var(--primary-button-hover) 100%)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg-0:#212121;--bg-1:#1f1f1f;--bg-2:#1a1a1a;--ink:#ececec;--ink-soft:#a3a3a3;--stroke:#343434;--surface:#2a2a2a;--surface-strong:#2f2f2f;--surface-muted:#262626;--chat-user-bg:#2f2f2f;--chat-assistant-bg:#212121;--sidebar-bg:#171717;--sidebar-ink:#f4f4f5;--sidebar-soft:#a1a1aa;--sidebar-section-bg:#1f1f1f;--sidebar-section-border:#323232;--primary-0:#10a37f;--primary-1:#0e8f70;--primary-2:#55c7ab;--primary-button:#10a37f;--primary-button-hover:#0e8f70;--danger:#f87171;--success:#4ade80;--warning:#facc15;--shadow-sm:0 1px 2px #00000059;--shadow-md:0 6px 14px #00000061;--shadow-lg:0 20px 40px #0000008f;--app-bg:radial-gradient(1200px 720px at -8% -18%, color-mix(in srgb, var(--primary-2) 14%, transparent 86%), transparent 68%), radial-gradient(980px 540px at 112% -24%, color-mix(in srgb, var(--primary-0) 14%, transparent 86%), transparent 66%), linear-gradient(180deg, #1d1d1f 0%, var(--bg-0) 48%);--surface-shadow:0 1px 2px #00000057, 0 8px 28px #00000057;--surface-shadow-hover:0 2px 4px #00000061, 0 14px 32px #00000070;--focus-ring:color-mix(in srgb, var(--primary-2) 38%, transparent 62%);--button-shadow:0 1px 3px #00000052;--button-shadow-hover:0 6px 16px #0000006b;--primary-button-gradient:linear-gradient(180deg, color-mix(in srgb, var(--primary-button) 82%, #fff 18%) 0%, var(--primary-button) 100%);--primary-button-gradient-hover:linear-gradient(180deg, color-mix(in srgb, var(--primary-button-hover) 80%, #fff 20%) 0%, var(--primary-button-hover) 100%)}}*{box-sizing:border-box}html,body{min-height:100%;margin:0;padding:0}body{color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;background:var(--app-bg);background-attachment:fixed;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;font-size:clamp(14px,.86vw,15px);line-height:1.56}button,input,textarea{font:inherit;color:inherit}h1,h2,h3,h4,h5{letter-spacing:-.015em;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;font-weight:700}.app-shell{grid-template-columns:var(--sidebar-width) minmax(0, 1fr);min-height:100vh;transition:grid-template-columns .18s;animation:.42s ease-out shell-in;display:grid}.app-shell.sidebar-collapsed{grid-template-columns:var(--sidebar-width-collapsed) minmax(0, 1fr)}.sidebar{background:linear-gradient(180deg, color-mix(in srgb, var(--sidebar-bg) 94%, var(--surface) 6%) 0%, var(--sidebar-bg) 60%);height:100vh;color:var(--sidebar-ink);border-right:1px solid var(--stroke);padding:.95rem .8rem;transition:padding .16s,background .2s;position:sticky;top:0;overflow:hidden auto}.sidebar.is-collapsed{padding:.7rem .55rem}.sidebar:before{content:none}.app-shell.sidebar-collapsed .sidebar:before{width:var(--sidebar-width-collapsed)}.sidebar-rail{justify-content:flex-end;margin-bottom:.35rem;display:flex}.sidebar-toggle{border:1px solid var(--sidebar-section-border);background:var(--sidebar-section-bg);width:34px;height:34px;color:var(--sidebar-ink);cursor:pointer;box-shadow:var(--button-shadow);border-radius:8px;justify-content:center;align-items:center;transition:background .12s,border-color .12s,transform .12s,box-shadow .12s;display:inline-flex}.sidebar-toggle:hover{background:var(--surface-muted);border-color:var(--ink-soft);box-shadow:var(--button-shadow-hover);transform:translateY(-1px)}.sidebar-toggle:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}.sidebar-section{border:1px solid var(--sidebar-section-border);border-radius:var(--radius-md);background:var(--sidebar-section-bg);box-shadow:var(--surface-shadow);margin-bottom:.68rem;padding:.66rem;transition:border-color .14s,box-shadow .16s,transform .16s}@media (hover:hover){.sidebar-section:hover{border-color:color-mix(in srgb, var(--primary-0) 24%, var(--sidebar-section-border) 76%);box-shadow:var(--surface-shadow-hover);transform:translateY(-1px)}}.section-title{color:var(--ink);align-items:center;gap:.44rem;margin:0 0 .54rem;font-size:.93rem;font-weight:700;display:inline-flex}.section-icon{width:.95rem;height:.95rem;color:var(--primary-0);flex:none}.sidebar .section-title{color:var(--sidebar-ink)}.sidebar .section-icon{color:var(--ink-soft)}.main-column{width:min(100%,1640px);padding:1rem 1.2rem 1.1rem}.hero{border:1px solid var(--stroke);border-radius:var(--radius-lg);background:linear-gradient(180deg, color-mix(in srgb, var(--surface) 94%, var(--primary-2) 6%) 0%, var(--surface) 68%);box-shadow:var(--surface-shadow);margin-bottom:.9rem;padding:.98rem 1.08rem;position:relative;overflow:clip}.hero-kicker{text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);align-items:center;gap:.42rem;margin:0 0 .42rem;font-size:.72rem;font-weight:700;display:inline-flex}.hero-kicker-icon,.hero-title-icon{width:.92rem;height:.92rem;color:var(--ink-soft)}.hero-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.65rem;display:flex}.hero h1{letter-spacing:-.02em;align-items:center;gap:.5rem;margin:0;font-size:clamp(1.44rem,2.2vw,1.94rem);display:inline-flex}.hero p{max-width:76ch;color:var(--ink-soft);margin:.46rem 0 0}.hero-badge{letter-spacing:.015em;white-space:nowrap;border:1px solid #0000;border-radius:999px;align-items:center;gap:.4rem;padding:.34rem .68rem;font-size:.74rem;font-weight:800;display:inline-flex}.hero-badge:before{content:"";width:.5rem;height:.5rem;box-shadow:0 0 0 3px color-mix(in srgb, currentColor 22%, transparent 78%);background:currentColor;border-radius:999px;flex:none}.hero-badge.online{color:color-mix(in srgb, var(--success) 90%, #0a2614 10%);background:linear-gradient(180deg, color-mix(in srgb, var(--success) 18%, var(--surface) 82%) 0%, color-mix(in srgb, var(--success) 10%, var(--surface) 90%) 100%);border-color:color-mix(in srgb, var(--success) 44%, var(--stroke) 56%);box-shadow:0 4px 14px color-mix(in srgb, var(--success) 18%, transparent 82%)}.hero-badge.online:before{animation:1.8s ease-out infinite status-pulse}.hero-badge.offline{color:color-mix(in srgb, var(--danger) 90%, #2a0a0a 10%);background:linear-gradient(180deg, color-mix(in srgb, var(--danger) 18%, var(--surface) 82%) 0%, color-mix(in srgb, var(--danger) 10%, var(--surface) 90%) 100%);border-color:color-mix(in srgb, var(--danger) 46%, var(--stroke) 54%);box-shadow:0 4px 14px color-mix(in srgb, var(--danger) 16%, transparent 84%)}.content-grid{gap:1rem;display:grid}.content-grid.with-context{grid-template-columns:minmax(0,2fr) minmax(360px,1fr)}.content-grid.chat-only{grid-template-columns:1fr}.chat-column,.context-column{border:1px solid var(--stroke);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--surface-shadow);padding:.84rem}.chat-column{background:0 0;border:none;padding:0}.chat-history{scroll-behavior:smooth;scrollbar-gutter:stable;background:0 0;border:none;border-radius:0;flex-direction:column;gap:.58rem;height:min(68vh,760px);padding:0 .1rem;display:flex;overflow-y:auto}.chat-history::-webkit-scrollbar{width:10px}.chat-history::-webkit-scrollbar-track{background:0 0}.chat-history::-webkit-scrollbar-thumb{background:color-mix(in srgb, var(--ink-soft) 36%, transparent 64%);background-clip:content-box;border:2px solid #0000;border-radius:999px}.chat-message{box-shadow:none;border:none;border-radius:0;align-self:center;width:min(100%,1040px);margin:0;padding:0;animation:.22s ease-out both message-in}.chat-message.user{align-self:flex-end;width:auto;max-width:min(84%,860px)}.chat-message.assistant{align-self:center;width:min(100%,1040px);max-width:1040px}:root[data-theme=dark] .chat-message{box-shadow:none}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .chat-message{box-shadow:none}}.chat-header{justify-content:flex-end;align-items:center;gap:.5rem;min-height:24px;margin-bottom:.22rem;display:flex}.chat-role{display:none}.chat-content{word-break:break-word;font-size:.97rem;line-height:1.62}.chat-message.user .chat-content{background:var(--chat-user-bg);border:1px solid var(--stroke);box-shadow:var(--shadow-sm);border-radius:16px;padding:.66rem .82rem}.chat-message.assistant .chat-content{border:1px solid var(--stroke);background:color-mix(in srgb, var(--chat-assistant-bg) 92%, var(--surface-muted) 8%);box-shadow:var(--shadow-sm);border-radius:16px;padding:.66rem .82rem}.assistant-waiting{color:var(--ink-soft);align-items:center;gap:.52rem;font-weight:600;display:inline-flex}.assistant-spinner{border:2px solid color-mix(in srgb, var(--ink-soft) 24%, transparent 76%);border-top-color:var(--primary-0);border-radius:999px;width:.96rem;height:.96rem;animation:.78s linear infinite spinner-turn}.chat-content :is(p,ul,ol,blockquote){margin:.42rem 0}.chat-content>:first-child{margin-top:0}.chat-content>:last-child{margin-bottom:0}.chat-content pre,.context-column pre{border:1px solid var(--stroke);white-space:pre-wrap;overflow-wrap:anywhere;background:color-mix(in srgb, var(--surface-strong) 88%, transparent 12%);border-radius:11px;padding:.74rem}.composer{border:1px solid var(--stroke);background:linear-gradient(180deg, color-mix(in srgb, var(--surface-strong) 92%, var(--surface-muted) 8%) 0%, var(--surface-strong) 100%);width:min(100%,1040px);box-shadow:var(--surface-shadow);border-radius:18px;grid-template-columns:minmax(0,1fr) auto;gap:.48rem;margin:.8rem auto 0;padding:.52rem;transition:border-color .14s,box-shadow .14s;display:grid}@media (min-width:1800px){.main-column{width:min(100%,1840px);padding:1.1rem 1.45rem 1.25rem}.content-grid.with-context{grid-template-columns:minmax(0,2.25fr) minmax(420px,1fr)}.chat-message{width:min(100%,1160px)}.chat-message.assistant{width:min(100%,1160px);max-width:1160px}.chat-message.user{max-width:min(85%,960px)}.composer{width:min(100%,1160px)}}.composer:focus-within{border-color:color-mix(in srgb, var(--primary-0) 44%, var(--stroke) 56%);box-shadow:0 0 0 3px var(--focus-ring), var(--surface-shadow-hover)}.composer-input{resize:vertical;width:100%;min-height:52px;max-height:200px;color:var(--ink);background:0 0;border:1px solid #0000;border-radius:12px;padding:.6rem .66rem;line-height:1.45}.composer-input:focus{outline:none}.sidebar-input:focus{outline:2px solid var(--focus-ring);outline-offset:1px}.primary-button,.sidebar-button,.prompt-button,.tab-button,.copy-button,.feedback-button,.history-open,.history-remove,.inline-link{cursor:pointer;border:1px solid #0000;border-radius:10px;transition:background .12s,border-color .12s,color .12s,transform .12s,box-shadow .12s}.primary-button:focus-visible,.sidebar-button:focus-visible,.prompt-button:focus-visible,.tab-button:focus-visible,.copy-button:focus-visible,.feedback-button:focus-visible,.history-open:focus-visible,.history-remove:focus-visible,.citation-button:focus-visible,.inline-link:focus-visible,.theme-option:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}.button-row{justify-content:center;align-items:center;gap:.44rem;display:inline-flex}.button-icon{flex:none;width:.88rem;height:.88rem}.primary-button{background:var(--primary-button-gradient);color:#f8fafc;box-shadow:var(--button-shadow);padding:.54rem .78rem;font-weight:700}.primary-button:hover{background:var(--primary-button-gradient-hover);box-shadow:var(--button-shadow-hover);transform:translateY(-1px)}.primary-button:active{box-shadow:var(--button-shadow);transform:translateY(0)}:root[data-theme=dark] .primary-button{color:#ecfdf5}.composer-send{border-radius:999px;justify-content:center;align-self:end;align-items:center;width:42px;min-width:42px;height:42px;padding:0;display:inline-flex}.composer-send .button-row{gap:0}.composer-send .button-icon{width:.96rem;height:.96rem}.composer-send-label{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.sidebar-button,.prompt-button,.tab-button,.copy-button,.feedback-button,.history-open,.history-remove,.citation-button{border:1px solid var(--stroke);background:var(--surface);color:var(--ink);box-shadow:var(--button-shadow)}.sidebar .sidebar-button,.sidebar .history-open,.sidebar .history-remove{color:var(--sidebar-ink);border-color:var(--sidebar-section-border);background:var(--sidebar-section-bg)}.sidebar-button:hover,.prompt-button:hover,.tab-button:hover,.copy-button:hover,.feedback-button:hover,.history-open:hover,.history-remove:hover,.citation-button:hover{border-color:color-mix(in srgb, var(--ink-soft) 45%, var(--stroke) 55%);background:var(--surface-muted);box-shadow:var(--button-shadow-hover);transform:translateY(-1px)}.sidebar-button:active,.prompt-button:active,.tab-button:active,.copy-button:active,.feedback-button:active,.history-open:active,.history-remove:active,.citation-button:active{box-shadow:var(--button-shadow);transform:translateY(0)}button:disabled{opacity:.62;cursor:not-allowed;box-shadow:none;transform:none}.sidebar-button{width:100%;margin-bottom:.32rem;padding:.5rem .72rem;font-weight:600}.search-shell{border:1px solid var(--sidebar-section-border);background:var(--sidebar-section-bg);border-radius:8px;align-items:center;gap:.36rem;margin-bottom:.42rem;padding:0 .46rem;transition:border-color .12s,box-shadow .12s;display:flex}.search-shell:focus-within{border-color:color-mix(in srgb, var(--primary-0) 42%, var(--sidebar-section-border) 58%);box-shadow:0 0 0 3px var(--focus-ring)}.search-icon{width:.88rem;height:.88rem;color:var(--sidebar-soft)}.sidebar-input{width:100%;color:var(--sidebar-ink);background:0 0;border:none;border-radius:11px;padding:.46rem .06rem}.sidebar-input::placeholder{color:color-mix(in srgb, var(--sidebar-soft) 88%, transparent 12%)}.history-actions{grid-template-columns:1fr 1fr;gap:.34rem;display:grid}.history-list{gap:.34rem;max-height:312px;display:grid;overflow-y:auto}.history-card{border:1px solid var(--sidebar-section-border);background:var(--sidebar-section-bg);box-shadow:var(--shadow-sm);border-radius:10px;padding:.38rem;transition:border-color .12s,box-shadow .12s;position:relative}@media (hover:hover){.history-card:hover{border-color:color-mix(in srgb, var(--primary-0) 22%, var(--sidebar-section-border) 78%);box-shadow:var(--shadow-md)}}.history-open{width:calc(100% - 34px);color:var(--sidebar-ink);text-align:left;padding:.34rem .46rem;font-size:.83rem}.history-open.is-active{border-color:color-mix(in srgb, var(--primary-0) 40%, var(--stroke) 60%);background:color-mix(in srgb, var(--primary-0) 12%, var(--surface) 88%)}.history-remove{width:27px;height:27px;color:var(--sidebar-ink);justify-content:center;align-items:center;display:inline-flex;position:absolute;top:.38rem;right:.38rem}.history-remove:hover{color:#ffb1b1;border-color:#d37878b3}.history-meta,.history-preview{color:var(--sidebar-soft);margin:.24rem 0 0;font-size:.73rem}.copy-button{opacity:.82;border-radius:999px;justify-content:center;align-items:center;width:30px;min-width:30px;height:30px;padding:0;font-size:0;line-height:0;display:inline-flex}.copy-button .button-icon{width:.82rem;height:.82rem}@media (hover:hover){.copy-button{opacity:0}.chat-message:hover .copy-button,.chat-message:focus-within .copy-button{opacity:1}}.copy-button.is-copied{color:var(--success);border-color:color-mix(in srgb, var(--success) 38%, var(--stroke) 62%);background:color-mix(in srgb, var(--success) 16%, var(--surface) 84%)}.feedback-row{flex-wrap:wrap;align-items:center;gap:.38rem;margin-top:.48rem;display:flex}.feedback-button{justify-content:center;align-items:center;width:34px;height:34px;display:inline-flex}.feedback-button.selected-up{background:color-mix(in srgb, var(--success) 18%, var(--surface) 82%);border-color:color-mix(in srgb, var(--success) 44%, var(--stroke) 56%);color:var(--success)}.feedback-button.selected-down{background:color-mix(in srgb, var(--danger) 18%, var(--surface) 82%);border-color:color-mix(in srgb, var(--danger) 44%, var(--stroke) 56%);color:var(--danger)}.feedback-meta{color:var(--ink-soft);font-size:.76rem}.citation-panel{border:1px solid var(--stroke);background:var(--surface-muted);border-radius:10px;margin-top:.48rem;padding:.48rem}.citation-panel summary{cursor:pointer;color:var(--ink);font-size:.83rem;font-weight:700}.citation-panel summary::-webkit-details-marker{color:var(--primary-0)}.citation-list{gap:.34rem;margin-top:.38rem;display:grid}.citation-button{text-align:left;border-radius:10px;padding:.42rem .56rem}.tab-row{grid-template-columns:1fr 1fr;gap:.36rem;margin-bottom:.52rem;display:grid}.tab-button{padding:.38rem .52rem;font-weight:700}.tab-button.active{border-color:color-mix(in srgb, var(--primary-0) 42%, var(--stroke) 58%);background:color-mix(in srgb, var(--primary-0) 16%, var(--surface) 84%)}.context-panel-body{border:1px solid var(--stroke);background:var(--surface-muted);box-shadow:inset 0 1px 0 color-mix(in srgb, var(--surface) 66%, transparent 34%);border-radius:12px;min-width:0;padding:.66rem;overflow:hidden}.chunk-meta-grid{grid-template-columns:1fr 1fr;gap:.46rem;margin-bottom:.6rem;display:grid}.chunk-meta-grid>div{border:1px solid var(--stroke);background:var(--surface);border-radius:10px;padding:.42rem .54rem}.chunk-meta-grid span{color:var(--ink-soft);font-size:.71rem;display:block}.chunk-meta-grid strong{color:var(--ink);word-break:break-word;font-size:.84rem}.chunk-rendered{border:1px solid var(--stroke);background:var(--surface);overflow-wrap:anywhere;word-break:break-word;border-radius:12px;max-width:100%;margin-bottom:.52rem;padding:.6rem .7rem;overflow:auto hidden}.chunk-rendered :is(p,li,blockquote,td,th,code,a,span){overflow-wrap:anywhere;word-break:break-word}.chunk-rendered pre{white-space:pre-wrap;overflow-wrap:anywhere;max-width:100%;overflow-x:auto}.chunk-rendered table{width:max-content;max-width:100%;display:block;overflow-x:auto}.chunk-rendered :is(img,svg,video,iframe){max-width:100%;height:auto}.empty-context h4{margin:0 0 .35rem}.starter-shell{border:1px solid var(--stroke);border-radius:var(--radius-md);background:var(--surface-muted);box-shadow:var(--surface-shadow);margin-bottom:.78rem;padding:.78rem}.prompt-deck{border:1px solid var(--stroke);background:var(--surface-strong);box-shadow:inset 0 1px 0 color-mix(in srgb, var(--surface) 64%, transparent 36%);border-radius:12px;margin-bottom:.56rem;padding:.76rem}.prompt-deck h4{margin:0}.prompt-deck p{margin:.25rem 0 0}.starter-list{gap:.38rem;display:grid}.toggle-row{color:var(--sidebar-soft);align-items:center;gap:.44rem;margin-bottom:.34rem;font-size:.84rem;display:flex}.toggle-row input{accent-color:var(--primary-0)}.theme-block{margin-top:.5rem}.theme-label{color:var(--sidebar-soft);letter-spacing:.02em;text-transform:uppercase;margin:0 0 .34rem;font-size:.76rem;font-weight:700}.theme-toggle{grid-template-columns:1fr 1fr 1fr;gap:.28rem;display:grid}.theme-option{border:1px solid var(--sidebar-section-border);background:var(--sidebar-section-bg);color:var(--sidebar-ink);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;gap:.26rem;min-height:34px;font-size:.76rem;font-weight:700;transition:background .12s,border-color .12s,transform .12s;display:inline-flex}.theme-option:hover{border-color:color-mix(in srgb, var(--ink-soft) 45%, var(--sidebar-section-border) 55%);background:var(--surface-muted)}.theme-option.active{border-color:color-mix(in srgb, var(--primary-0) 46%, var(--sidebar-section-border) 54%);background:color-mix(in srgb, var(--primary-0) 16%, var(--sidebar-section-bg) 84%)}.metrics-grid{grid-template-columns:1fr 1fr;gap:.4rem;display:grid}.metric-card{border:1px solid var(--sidebar-section-border);background:var(--sidebar-section-bg);border-radius:10px;padding:.37rem .5rem}.metric-card span{color:var(--sidebar-soft);font-size:.72rem;display:block}.metric-card strong{color:var(--sidebar-ink);font-size:.95rem}.model-pills{flex-wrap:wrap;gap:.28rem;margin-top:.28rem;display:flex}.model-pill{border:1px solid var(--sidebar-section-border);color:var(--sidebar-ink);background:var(--sidebar-section-bg);border-radius:999px;padding:.14rem .54rem;font-size:.72rem;display:inline-flex}.auth-gate{text-align:center;place-content:center;gap:.48rem;min-height:100vh;padding:1rem;display:grid}.auth-gate h1{margin:0}.gate-actions{justify-content:center;display:flex}.hero-mark{background:color-mix(in srgb, var(--primary-0) 14%, var(--surface) 86%);border:1px solid color-mix(in srgb, var(--primary-0) 42%, var(--stroke) 58%);border-radius:14px;place-items:center;width:56px;height:56px;margin:0 auto;display:grid}.hero-mark-icon{width:1.35rem;height:1.35rem;color:var(--primary-0)}.warning-banner{border:1px solid color-mix(in srgb, var(--warning) 40%, var(--stroke) 60%);background:color-mix(in srgb, var(--warning) 14%, var(--surface) 86%);color:var(--warning);border-radius:10px;margin-top:.54rem;padding:.42rem .6rem}.inline-link{color:inherit;background:0 0;border:none;padding:0;text-decoration:underline}.modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0000007a;place-items:center;padding:1rem;display:grid;position:fixed;inset:0}.modal-content{border:1px solid var(--stroke);border-radius:var(--radius-md);background:var(--surface-strong);width:min(900px,100%);max-height:min(84vh,860px);box-shadow:var(--shadow-lg);grid-template-rows:auto minmax(0,1fr);animation:.22s ease-out modal-in;display:grid;overflow:hidden}.modal-header{border-bottom:1px solid var(--stroke);justify-content:space-between;align-items:center;padding:.68rem .74rem;display:flex}.modal-header h3{margin:0}.modal-header .history-remove{border-color:var(--stroke);background:color-mix(in srgb, var(--surface-strong) 88%, transparent 12%);color:var(--ink);position:static}.modal-header .history-remove:hover{color:var(--danger)}.modal-body{padding:.78rem;overflow:auto}.error-text{color:var(--danger);font-size:.82rem}.muted{color:var(--ink-soft);font-size:.82rem}.sidebar .muted{color:var(--sidebar-soft)}@keyframes shell-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes message-in{0%{opacity:0;transform:translateY(10px)scale(.992)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes modal-in{0%{opacity:0;transform:translateY(12px)scale(.985)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes sheen{0%{transform:translate(-120%)}to{transform:translate(140%)}}@keyframes status-pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb, currentColor 30%, transparent 70%)}70%{box-shadow:0 0 0 7px color-mix(in srgb, currentColor 0%, transparent 100%)}to{box-shadow:0 0 0 0 color-mix(in srgb, currentColor 0%, transparent 100%)}}@keyframes spinner-turn{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.hero-badge.online:before,.assistant-spinner{animation:none}}@media (max-width:1240px){.content-grid.with-context{grid-template-columns:1fr}.chat-history{height:min(66vh,730px)}}@media (max-width:980px){.app-shell,.app-shell.sidebar-collapsed{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--stroke);height:auto;position:static}.sidebar:before,.app-shell.sidebar-collapsed .sidebar:before{width:100%}.sidebar.is-collapsed{padding:1rem .9rem}.main-column{padding-top:.82rem}}@media (max-width:700px){.composer,.chunk-meta-grid,.tab-row,.history-actions{grid-template-columns:1fr}.chat-history{height:min(60vh,620px)}.hero{padding:.84rem}.hero h1{font-size:1.3rem}}