:root{color-scheme:light;--bg: #f8fafc;--surface: #ffffff;--surface-subtle: #f1f5fd;--text: #0f172a;--muted: #64748b;--border: #e4ecfc;--primary: #2563eb;--primary-hover: #1d4ed8;--accent: #059669;--danger: #dc2626;--danger-soft: #fee2e2;--ring: #2563eb;--shadow: 0 18px 45px rgba(15, 23, 42, .08)}*{box-sizing:border-box}body{margin:0;min-width:320px;background:var(--bg);color:var(--text);font-family:Fira Sans,Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.5}button,input,select,textarea{font:inherit}button,.icon-link{min-height:44px;border:0;border-radius:6px;background:var(--primary);color:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 16px;font-weight:700;text-decoration:none;transition:background .18s ease,border-color .18s ease,color .18s ease}button:hover,.icon-link:hover{background:var(--primary-hover)}button:disabled{cursor:not-allowed;opacity:.55}button.secondary{border:1px solid var(--border);background:var(--surface);color:var(--text)}button.secondary:hover{background:var(--surface-subtle)}button.danger,.icon-button.danger{color:var(--danger)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--ring);outline-offset:2px}input,select,textarea{width:100%;min-height:44px;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:var(--text);padding:10px 12px}textarea{resize:vertical}label{display:grid;gap:6px;color:var(--muted);font-size:13px;font-weight:700}h1,h2,p{margin:0}h1{font-size:clamp(30px,4vw,42px);line-height:1.1}h2{font-size:18px}table{width:100%;border-collapse:collapse}th,td{border-bottom:1px solid var(--border);padding:12px 14px;text-align:left;vertical-align:middle}th{color:var(--muted);font-size:12px;text-transform:uppercase}td{overflow-wrap:anywhere}.eyebrow{color:var(--muted);font-size:12px;font-weight:800;letter-spacing:0;text-transform:uppercase}.mono{font-family:Fira Code,ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px}.notice{border:1px solid #a7f3d0;border-radius:8px;background:#ecfdf5;color:#065f46;padding:12px 14px}.notice.error{border-color:#fecaca;background:var(--danger-soft);color:#991b1b}.chat-layout{height:100dvh;display:grid;grid-template-columns:260px minmax(0,1fr);overflow:hidden}.session-panel{min-height:0;border-right:1px solid var(--border);background:var(--surface);padding:18px 12px;display:grid;grid-template-rows:auto minmax(0,1fr);gap:14px}.session-panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 2px}.session-list{min-height:0;overflow-y:auto;display:grid;align-content:start;gap:6px}.session-item{min-width:0;width:100%;min-height:44px;border:1px solid transparent;background:transparent;color:var(--text);justify-content:flex-start;padding:0 10px;font-weight:750}.session-item:hover,.session-item.active{border-color:var(--border);background:var(--surface-subtle);color:var(--primary)}.session-item span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-shell{width:min(980px,calc(100% - 32px));height:100dvh;margin:0 auto;padding:24px 0;display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:18px;overflow:hidden}.chat-header,.page-heading,.admin-topbar{display:flex;align-items:center;justify-content:space-between;gap:16px}.chat-header h1{font-size:22px;line-height:1.2}.conversation{min-height:0;padding:18px 0;overflow-y:auto;display:grid;align-content:start;gap:16px;scroll-behavior:smooth}.conversation.is-empty{place-items:center;align-content:center}.chat-empty{display:grid;gap:10px;text-align:center}.chat-empty h2{color:var(--text);font-size:clamp(28px,5vw,44px);line-height:1.1;font-weight:800}.message{max-width:min(760px,88%);border-radius:8px;padding:12px 14px;background:transparent;white-space:pre-wrap}.message.user{justify-self:end;background:#e8f1ff}.message span{display:block;margin-bottom:4px;color:var(--muted);font-size:12px;font-weight:800;text-transform:uppercase}.composer{position:sticky;bottom:0;z-index:10;border:1px solid var(--border);border-radius:8px;background:var(--surface);box-shadow:var(--shadow);padding:12px 14px;display:grid;gap:8px}.composer-tools{display:flex;align-items:center;justify-content:space-between;gap:12px}.composer-options{min-width:0;display:flex;align-items:end;gap:12px}.model-control{width:min(440px,52vw)}.composer textarea{min-height:76px;border:0;padding:8px 4px;resize:none}.composer textarea:focus-visible{outline-offset:0}.send-button{min-width:44px;width:44px;padding:0}.stream-switch{white-space:nowrap}.admin-shell{min-height:100dvh;display:grid;grid-template-columns:236px minmax(0,1fr)}.sidebar{border-right:1px solid var(--border);background:var(--surface);padding:20px 14px}.brand{display:block;margin:0 8px 22px;color:var(--text);font-size:19px;font-weight:850;text-decoration:none}.sidebar nav{display:grid;gap:6px}.sidebar nav a{min-height:44px;border-radius:6px;color:var(--muted);display:flex;align-items:center;gap:10px;padding:0 12px;text-decoration:none;font-weight:750}.sidebar nav a:hover,.sidebar nav a.router-link-active{background:var(--surface-subtle);color:var(--primary)}.admin-main{min-width:0;padding:20px;display:grid;align-content:start;gap:18px}.admin-topbar{justify-content:flex-end}.token-field{width:min(420px,100%);display:flex;align-items:center;gap:10px}.page{display:grid;gap:16px}.toolbar{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.split{display:grid;grid-template-columns:minmax(280px,380px) minmax(0,1fr);gap:16px;align-items:start}.panel,.table-wrap{border:1px solid var(--border);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.panel{padding:16px;display:grid;gap:14px}.plain-panel{box-shadow:none}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.table-wrap{overflow:auto}.compact-table{max-height:240px}.form-row{display:grid;grid-template-columns:1fr auto;align-items:end;gap:12px}.input-action{display:grid;grid-template-columns:minmax(0,1fr) 44px;gap:8px}.input-action button{padding:0}fieldset{min-width:0;border:1px solid var(--border);border-radius:8px;display:grid;gap:8px;margin:0;padding:12px}legend,.form-hint{color:var(--muted);font-size:13px;font-weight:750}.check-row{min-height:32px;display:flex;align-items:center;gap:8px;color:var(--text);font-size:14px}.check-row input,td input[type=checkbox]{width:18px;min-height:18px}.stack{display:grid;gap:16px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#0f172a80;display:grid;place-items:center;padding:20px}.modal{width:min(960px,100%);max-height:min(860px,calc(100dvh - 40px));border:1px solid var(--border);border-radius:8px;background:var(--surface);box-shadow:0 24px 70px #0f172a38;overflow:hidden;display:grid;grid-template-rows:auto minmax(0,1fr)}.modal-narrow{width:min(520px,100%)}.modal-header{border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px}.modal-body{min-height:0;overflow:auto;display:grid;grid-template-columns:minmax(280px,360px) minmax(0,1fr);gap:16px;padding:16px}.switch{min-height:44px;display:flex;align-items:center;gap:8px;color:var(--text)}.switch input{width:18px;min-height:18px}.badge{display:inline-flex;border-radius:999px;padding:3px 8px;background:#e2e8f0;color:#475569;font-size:12px;font-weight:800}.badge.on{background:#d1fae5;color:#065f46}.actions{width:1%;white-space:nowrap}.icon-button{min-width:40px;min-height:40px;border:1px solid var(--border);background:var(--surface);color:var(--text);padding:0}.icon-button:hover{background:var(--surface-subtle)}.key-cell{display:flex;align-items:center;gap:8px;min-width:260px}.key-cell span{min-width:0;overflow-wrap:anywhere}@media(max-width:900px){.admin-shell,.split,.modal-body{grid-template-columns:1fr}.chat-layout{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr)}.session-panel{border-right:0;border-bottom:1px solid var(--border);padding:12px 16px}.session-list{grid-auto-flow:column;grid-auto-columns:minmax(180px,1fr);overflow-x:auto;overflow-y:hidden}.chat-shell{width:min(980px,calc(100% - 24px));height:100%;padding:16px 0}.composer-options{flex:1;display:grid;grid-template-columns:1fr;gap:8px}.model-control{width:100%}.sidebar{border-right:0;border-bottom:1px solid var(--border)}.sidebar nav{grid-template-columns:repeat(3,minmax(0,1fr))}.message{max-width:100%}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}