:root{--bg: #0b0b0c;--bg-2: #0f0f11;--panel: #131315;--panel-2: #161618;--line: #232327;--line-soft: #1a1a1d;--ink: #e9e8e4;--ink-dim: #a2a19b;--ink-faint: #63625e;--hall: #8b7bd8;--hall-dim: #6f62b8;--hall-glow: color-mix(in srgb, var(--hall) 14%, transparent);--danger: #e08080;--ok: #7dba8a;--font-display: "Cormorant Garamond", Georgia, "Times New Roman", serif;--font-ui: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;--font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;--topbar-h: 48px;--rail-w: 288px;--radius: 8px;--radius-lg: 12px}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%}html{background:var(--bg);color-scheme:dark}body{background:var(--bg);color:var(--ink);font-family:var(--font-ui);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow:hidden}a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%}::selection{background:var(--hall);color:#0b0b0c}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#1f1f22;border:2px solid var(--bg);border-radius:6px}::-webkit-scrollbar-thumb:hover{background:var(--ink-faint)}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}.shell{display:grid;grid-template-rows:var(--topbar-h) 1fr;height:100vh;height:100dvh;overflow:hidden}.topbar{display:flex;align-items:center;gap:4px;padding:0 14px;border-bottom:1px solid var(--line-soft);background:color-mix(in srgb,var(--bg) 92%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:20}.brand{font-family:var(--font-display);font-size:1.25rem;font-weight:600;letter-spacing:.02em;margin-right:12px;flex-shrink:0}.brand em{color:var(--hall);font-style:normal}.nav{display:flex;align-items:center;gap:2px;min-width:0;overflow-x:auto}.nav a{color:var(--ink-dim);font-size:.875rem;padding:6px 10px;border-radius:6px;white-space:nowrap}.nav a:hover,.nav a[aria-current=page]{color:var(--ink);background:var(--panel)}.topbar-end{margin-left:auto;display:flex;align-items:center;gap:8px;flex-shrink:0}.user-chip{display:flex;align-items:center;gap:8px;max-width:200px;color:var(--ink-dim);font-size:.8rem;font-family:var(--font-mono)}.user-chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.main{min-height:0;overflow:auto}.pg{display:grid;grid-template-columns:1fr var(--rail-w);height:100%;min-height:0}.pg-center{display:grid;grid-template-rows:auto 1fr auto;min-height:0;min-width:0;border-right:1px solid var(--line-soft)}.pg-rail{display:flex;flex-direction:column;min-height:0;overflow-y:auto;background:var(--bg-2)}.system-bar{border-bottom:1px solid var(--line-soft);background:var(--bg-2)}.system-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px 16px;background:transparent;border:none;color:var(--ink-dim);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;font-family:var(--font-mono)}.system-toggle:hover{color:var(--ink)}.system-toggle .chev{transition:transform .15s ease;color:var(--ink-faint)}.system-toggle[aria-expanded=true] .chev{transform:rotate(180deg)}.system-body{padding:0 16px 12px}.system-body textarea{width:100%;min-height:88px;resize:vertical;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:10px 12px;line-height:1.55;font-size:.9rem}.system-body textarea:focus{outline:none;border-color:var(--hall);box-shadow:0 0 0 2px var(--hall-glow)}.thread{overflow-y:auto;padding:20px 24px 12px;min-height:0}.thread-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--ink-faint);text-align:center;padding:40px 20px}.thread-empty h2{font-family:var(--font-display);font-weight:500;font-size:1.75rem;color:var(--ink-dim);letter-spacing:-.01em}.thread-empty p{max-width:36ch;font-size:.9rem;line-height:1.6}.msg{max-width:720px;margin:0 auto 16px;padding:12px 14px;border-radius:var(--radius-lg);white-space:pre-wrap;word-break:break-word;font-size:.95rem;line-height:1.65}.msg-label{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:6px}.msg.user{background:var(--panel);border:1px solid var(--line-soft);margin-left:12%}.msg.assistant{background:transparent;border:1px solid transparent;border-left:2px solid var(--hall);padding-left:16px;border-radius:0 var(--radius-lg) var(--radius-lg) 0}.msg.assistant.streaming:after{content:"▍";color:var(--hall);animation:blink 1s step-end infinite}@keyframes blink{50%{opacity:0}}@media(prefers-reduced-motion:reduce){.msg.assistant.streaming:after{animation:none}}.composer-wrap{border-top:1px solid var(--line-soft);padding:12px 16px 14px;background:color-mix(in srgb,var(--bg) 88%,var(--panel))}.composer{max-width:760px;margin:0 auto;display:flex;gap:8px;align-items:flex-end;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:8px;transition:border-color .12s ease,box-shadow .12s ease}.composer:focus-within{border-color:var(--hall);box-shadow:0 0 0 2px var(--hall-glow)}.composer 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60px}.page-head{margin-bottom:22px}.page-eyebrow{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:6px}.page-title{font-family:var(--font-display);font-weight:500;font-size:1.85rem;letter-spacing:-.01em;line-height:1.2}.page-sub{color:var(--ink-dim);margin-top:6px;font-size:.9rem;max-width:56ch}.panel{background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius-lg);padding:16px}.panel+.panel{margin-top:12px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.panel-head h2{font-size:.95rem;font-weight:600}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.field label{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint)}.field input,.field select,.field textarea{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:9px 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35%,transparent)}.badge.bad{color:var(--danger);border-color:color-mix(in srgb,var(--danger) 35%,transparent)}.badge.hall{color:var(--hall);border-color:color-mix(in srgb,var(--hall) 40%,transparent)}.fresh-key{margin-top:12px;padding:12px;border-radius:var(--radius);background:var(--bg-2);border:1px solid color-mix(in srgb,var(--hall) 35%,var(--line))}.fresh-key p{font-size:.8rem;color:var(--ink-dim);margin-bottom:8px}.fresh-key code{display:block;font-family:var(--font-mono);font-size:.78rem;color:var(--ink);word-break:break-all;line-height:1.5}.error{color:var(--danger);font-size:.85rem;margin-top:10px}.empty{color:var(--ink-faint);font-size:.875rem;padding:16px 4px 8px}.muted{color:var(--ink-dim);font-size:.85rem}.mono{font-family:var(--font-mono)}.center-page{min-height:calc(100vh - var(--topbar-h));min-height:calc(100dvh - var(--topbar-h));display:flex;align-items:center;justify-content:center;padding:32px 20px;overflow-y:auto}.auth-card{width:100%;max-width:400px}.auth-card .page-title{margin-bottom:4px}.seg{display:grid;grid-template-columns:1fr 1fr;gap:4px;background:var(--bg-2);border:1px solid var(--line-soft);border-radius:var(--radius);padding:4px;margin:18px 0}.seg button{border:none;background:transparent;color:var(--ink-dim);padding:8px;border-radius:6px;font-size:.875rem;font-weight:500}.seg button[aria-pressed=true]{background:var(--panel);color:var(--ink)}.landing{min-height:calc(100vh - var(--topbar-h));min-height:calc(100dvh - var(--topbar-h));display:flex;flex-direction:column;justify-content:center;padding:48px 24px 64px;max-width:720px;margin:0 auto}.landing .eyebrow{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:14px}.landing h1{font-family:var(--font-display);font-weight:500;font-size:clamp(2.4rem,6vw,3.4rem);line-height:1.15;letter-spacing:-.02em;margin-bottom:14px}.landing h1 em{color:var(--hall);font-style:normal}.landing .lede{color:var(--ink-dim);max-width:48ch;font-size:1.05rem;line-height:1.65;margin-bottom:28px}.landing-actions{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden;max-width:480px}.stat{background:var(--panel);padding:14px 16px}.stat .n{font-family:var(--font-display);font-size:1.5rem;font-weight:500;line-height:1.2}.stat .l{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-top:2px}.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:16px}.stat-card{background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius-lg);padding:14px;text-align:center}.stat-card .n{font-family:var(--font-display);font-size:1.75rem;font-weight:500}.stat-card .l{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-top:2px}@media(max-width:860px){.pg{grid-template-columns:1fr;grid-template-rows:1fr auto}.pg-rail{max-height:42vh;border-top:1px solid var(--line-soft);order:2}.pg-center{border-right:none;order:1;min-height:0}.msg.user{margin-left:0}.stats,.stat-row{grid-template-columns:1fr}}@media(max-width:520px){.brand{font-size:1.1rem;margin-right:6px}.topbar{padding:0 10px}.nav a{padding:6px 8px;font-size:.8rem}.user-chip{display:none}.thread{padding:14px 12px 8px}}