:root {
  --blue: #2d6cdf;
  --blue-dark: #1e4fb2;
  --blue-soft: #eaf1ff;
  --ink: #17253d;
  --muted: #6d7a90;
  --line: #e3e9f2;
  --canvas: #f5f8fc;
  --surface: #fff;
  --success: #23a56b;
  --warning: #e28b33;
  --danger: #d95967;
  --shadow: 0 12px 30px rgba(31, 59, 103, .08);
  font-family: "DM Sans", "Noto Sans SC", system-ui, sans-serif;
  color: var(--ink);
  background: var(--canvas);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html, body, #app { min-height: 100%; margin: 0; }
body { background: var(--canvas); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }

.topbar {
  height: 72px; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line);
  display: flex; align-items: center; padding: 0 36px; position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(14px);
}
.brand { display: flex; align-items: center; gap: 11px; font-size: 20px; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { width: 35px; height: 35px; border-radius: 10px; background: var(--blue); display: grid; place-items: center; color: white; font-weight: 800; box-shadow: 0 6px 15px rgba(45,108,223,.25); }
.brand small { display: block; color: var(--muted); font-size: 11px; font-weight: 500; margin-top: 1px; letter-spacing: 0; }
.site-nav { display:flex; align-items:center; gap:4px; margin-left:28px; }
.site-nav-link { color:var(--muted); font-size:13px; padding:8px 11px; border-radius:7px; }
.site-nav-link:hover { color:var(--blue); background:var(--blue-soft); }
.site-nav-link.active { color:var(--blue); background:var(--blue-soft); font-weight:600; }
.topbar-spacer { flex: 1; }
.topbar-link { padding: 9px 12px; color: var(--muted); font-size: 13px; border-radius: 8px; }
.topbar-link:hover { color: var(--blue); background: var(--blue-soft); }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: #dce9ff; color: var(--blue-dark); display: grid; place-items: center; font-size: 12px; font-weight: 700; margin-left: 12px; }
.settings-button { border: 1px solid var(--line); background: #fff; color: var(--muted); border-radius: 8px; padding: 8px 12px; font-size: 12px; display: inline-flex; align-items: center; gap: 6px; }
.settings-button:hover { color: var(--blue); border-color: #aac5fb; background: var(--blue-soft); }

.market-shell { max-width: 1440px; margin: 0 auto; padding: 38px 36px 60px; }
.hero-row { display:flex; justify-content:space-between; align-items:flex-end; gap:20px; margin-bottom:28px; }
.eyebrow { color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 10px; }
h1 { font-size: clamp(30px, 4vw, 42px); line-height: 1.12; margin: 0; letter-spacing: -.04em; }
.hero-copy { color: var(--muted); font-size: 15px; margin: 12px 0 0; max-width: 580px; line-height: 1.7; }
.hero-stats { display:flex; gap: 8px; }
.stat { border: 1px solid var(--line); background: var(--surface); border-radius: 10px; padding: 12px 18px; min-width: 110px; }
.stat strong { display:block; font-size: 20px; }
.stat span { color: var(--muted); font-size: 12px; }

.market-search-row { margin: 0 0 12px; }
.market-category-row { display:flex; align-items:center; min-height:40px; margin:0 0 14px; }
.search { width:100%; min-width:180px; position:relative; border:1px solid #b9c9df; border-radius:10px; background:var(--surface); box-shadow:0 3px 12px rgba(31,59,103,.06); transition:border-color .16s ease, box-shadow .16s ease; }
.search:focus-within { border-color:var(--blue); box-shadow:0 0 0 3px rgba(45,108,223,.13), 0 5px 16px rgba(31,59,103,.08); }
.search input { width:100%; border:0; outline:0; padding: 11px 14px 11px 38px; background:transparent; border-radius:9px; color:var(--ink); }
.search input::placeholder { color:#8795a9; }
.search-icon { position:absolute; left:13px; top:10px; color:#7286a2; font-size: 16px; pointer-events:none; }
.filter-pills { display:flex; gap:7px; flex-wrap:wrap; }
.pill { border:1px solid transparent; background:transparent; color:var(--muted); padding:8px 13px; border-radius:7px; font-size:13px; white-space:nowrap; }
.pill:hover { color:var(--blue); background:var(--blue-soft); }
.pill.active { background:var(--blue); color:#fff; box-shadow: 0 5px 12px rgba(45,108,223,.22); }

.section-label { display:flex; align-items:center; justify-content:flex-end; margin: 0 0 12px; min-height:18px; }
.section-label h2 { font-size: 15px; margin:0; }
.section-label span { font-size: 12px; color:var(--muted); }
.app-grid { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.app-card { background:var(--surface); border:1px solid var(--line); border-radius: 12px; padding:18px; display:flex; flex-direction:column; min-height: 263px; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.app-card:hover { transform: translateY(-3px); box-shadow: 0 16px 34px rgba(31,59,103,.12); border-color:#bed2fa; }
.app-head { display:flex; gap:12px; align-items:flex-start; }
.app-icon { width:48px; height:48px; flex:0 0 48px; border-radius: 12px; display:grid; place-items:center; color:white; font-size:20px; font-weight:800; }
.app-icon.orange { background:#ef9a45; } .app-icon.blue { background:#5c83ec; } .app-icon.teal { background:#35a999; } .app-icon.violet { background:#8b75de; } .app-icon.rose { background:#e97c93; }
.app-title { flex:1; min-width:0; } .app-title h3 { font-size:15px; margin: 1px 0 5px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; } .app-title p { margin:0; color:var(--muted); font-size:11px; }
.star { border:0; background:transparent; color:#9eb0c9; padding: 1px 0 0 8px; font-size:18px; line-height:1; } .star.active { color:#f2b13d; }
.tag-row { display:flex; gap:6px; flex-wrap:wrap; margin: 14px 0 9px; } .tag { padding:4px 7px; border-radius:5px; font-size:10px; background:#eef3fb; color:#6880a8; } .tag.accent { color:#b87124; background:#fff3df; }
.app-desc { color:#718097; font-size:12px; line-height:1.65; margin:0; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }
.card-footer { display:flex; justify-content:space-between; align-items:center; gap:8px; margin-top:auto; padding-top: 18px; }
.use-count { color:#9aa8bb; font-size:11px; }
.btn { border:0; border-radius:7px; padding:9px 14px; font-size:12px; font-weight:600; display:inline-flex; align-items:center; justify-content:center; gap:7px; transition: all .16s ease; }
.btn-primary { color:#fff; background:var(--blue); box-shadow:0 5px 12px rgba(45,108,223,.18); } .btn-primary:hover { background:var(--blue-dark); }
.btn-ghost { color:var(--blue); background:var(--blue-soft); } .btn-ghost:hover { background:#dce8ff; }
.btn-outline { color:var(--blue); background:#fff; border:1px solid #9dbbf7; } .btn-outline:hover { background:var(--blue-soft); }
.btn-danger { color:#c84c5d; background:#fff0f1; } .btn-danger:hover { background:#ffe2e5; }
.btn-sm { padding:7px 10px; font-size:11px; }
.empty-state { grid-column:1/-1; border:1px dashed #cdd8e8; border-radius:12px; padding:60px 20px; text-align:center; color:var(--muted); }

.chat-shell { display:grid; grid-template-columns: 270px minmax(0,1fr); min-height: calc(100vh - 72px); max-width: 1440px; margin:0 auto; }
.chat-side { background:#f9fbfe; border-right:1px solid var(--line); padding:24px 18px; }
.back-link { display:inline-flex; align-items:center; gap:7px; color:var(--muted); font-size:12px; margin-bottom: 28px; } .back-link:hover { color:var(--blue); }
.side-app { display:flex; gap:11px; align-items:center; padding: 13px 10px; background:#fff; border:1px solid var(--line); border-radius:10px; }
.side-app .app-icon { width:40px; height:40px; flex-basis:40px; font-size:16px; border-radius:10px; } .side-app strong { font-size:13px; display:block; } .side-app span { color:var(--muted); font-size:11px; }
.chat-note { border-top:1px solid var(--line); margin-top:24px; padding-top:20px; color:var(--muted); font-size:12px; line-height:1.7; }
.chat-main { display:flex; flex-direction:column; min-width:0; background:#fff; }
.chat-top { padding: 22px 34px; border-bottom:1px solid var(--line); display:flex; align-items:center; gap:14px; } .chat-top h1 { font-size:19px; letter-spacing:-.02em; } .chat-top p { margin:4px 0 0; color:var(--muted); font-size:12px; }
.chat-model-control { display: grid; grid-template-columns: auto minmax(130px, 180px); align-items: center; gap: 5px 8px; }
.chat-model-control label { color: var(--muted); font-size: 11px; }
.chat-model-control select { border: 1px solid #d6e0ee; border-radius: 6px; color: var(--ink); background: #fff; padding: 7px 8px; font-size: 11px; outline: 0; }
.chat-model-control select:focus { border-color: #8fb1f5; box-shadow: 0 0 0 3px #e9f0ff; }
.connection-label { grid-column: 2; color: var(--success); font-size: 10px; }
.chat-messages { flex:1; overflow:auto; padding: 34px max(24px, calc((100% - 860px)/2)); background:#fbfcfe; }
.welcome { max-width:680px; margin:0 auto 28px; padding:24px; border:1px solid var(--line); border-radius:12px; background:#fff; } .welcome h2 { margin:0 0 10px; font-size:19px; } .welcome p { margin:0; color:var(--muted); font-size:13px; line-height:1.7; }
.message { display:flex; gap:10px; margin: 18px auto; max-width: 780px; } .message.user { flex-direction:row-reverse; } .message-avatar { width:30px; height:30px; border-radius:50%; display:grid; place-items:center; flex:0 0 30px; background:#e3edff; color:var(--blue); font-size:11px; font-weight:700; } .message.user .message-avatar { background:var(--blue); color:#fff; }
.bubble { max-width: 70%; border:1px solid var(--line); padding:12px 15px; border-radius: 5px 12px 12px 12px; color:#344258; font-size:13px; line-height:1.7; background:#fff; white-space:pre-wrap; } .message.user .bubble { background:var(--blue); border-color:var(--blue); color:#fff; border-radius:12px 5px 12px 12px; }
.chat-compose { border-top:1px solid var(--line); padding: 16px max(24px, calc((100% - 860px)/2)); background:#fff; } .quick-prompts { display:flex; gap:7px; flex-wrap:wrap; margin-bottom:10px; } .quick { border:1px solid #d9e4f5; border-radius:6px; padding:7px 10px; background:#f8faff; color:#5e7294; font-size:11px; } .quick:hover { color:var(--blue); border-color:#aac5fb; }
.pending-files { display:flex; gap:8px; flex-wrap:wrap; margin:0 0 10px; }
.pending-file { display:flex; align-items:center; gap:7px; max-width:240px; border:1px solid #d9e4f5; border-radius:8px; padding:5px 7px; background:#f8faff; color:#526681; font-size:11px; }
.pending-file img { width:28px; height:28px; object-fit:cover; border-radius:5px; }
.file-glyph { width:28px; height:28px; display:grid; place-items:center; border-radius:5px; background:#e8effb; color:var(--blue); font-size:14px; }
.pending-file-name { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.pending-file small { color:#93a1b4; white-space:nowrap; }
.remove-file { border:0; background:transparent; color:#93a1b4; font-size:16px; line-height:1; padding:2px; }
.remove-file:hover { color:var(--danger); }
.composer { display:flex; align-items:flex-end; gap:10px; border:1px solid #cbd8ea; border-radius:10px; padding:8px; } .composer textarea { flex:1; min-height:42px; max-height:130px; resize:vertical; border:0; outline:0; padding:7px; color:var(--ink); font-size:13px; } .send-btn { width:40px; height:40px; padding:0; }
.attach-btn { width:40px; height:40px; border:0; border-radius:7px; background:#f0f4fb; color:#6a7d9b; font-size:20px; line-height:1; }
.attach-btn:hover { color:var(--blue); background:var(--blue-soft); }
.stop-btn { height:40px; }
.upload-hint { color:#9aa8bb; font-size:10px; margin-top:8px; }
.message-attachments { display:flex; flex-wrap:wrap; gap:7px; margin-top:10px; }
.message-image { max-width:260px; max-height:180px; object-fit:contain; border-radius:7px; border:1px solid rgba(255,255,255,.35); }
.message-file { display:inline-flex; align-items:center; gap:5px; padding:6px 8px; border-radius:6px; background:#edf3fd; color:#597092; font-size:11px; }
.message-file small { color:#8b9ab0; }
.typing-cursor { color:var(--blue); animation:blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity:0; } }

.admin-shell { display:flex; min-height:calc(100vh - 72px); max-width: 1440px; margin:0 auto; }
.admin-side { width:230px; background:#12213b; color:#d8e2f3; padding:24px 14px; display:flex; flex-direction:column; }
.admin-brand { display:flex; align-items:center; gap:10px; padding: 0 10px 27px; color:#fff; font-size:16px; font-weight:700; } .admin-brand .brand-mark { width:29px; height:29px; border-radius:8px; font-size:13px; }
.admin-label { color:#8396b6; font-size:10px; letter-spacing:.08em; padding:0 11px; margin: 12px 0 8px; text-transform:uppercase; }
.admin-nav { display:flex; flex-direction:column; gap:3px; } .admin-nav button { text-align:left; color:#aebed7; background:transparent; border:0; border-radius:7px; padding:11px 12px; font-size:13px; } .admin-nav button:hover { background:#1d3154; color:#fff; } .admin-nav button.active { background:var(--blue); color:#fff; }
.admin-side-bottom { margin-top:auto; border-top:1px solid #253752; padding:18px 9px 0; color:#8da0bd; font-size:11px; line-height:1.7; }
.admin-content { flex:1; min-width:0; padding: 30px 34px 60px; }
.admin-top { display:flex; justify-content:space-between; align-items:flex-start; gap:20px; margin-bottom: 26px; } .admin-top h1 { font-size:25px; } .admin-top p { color:var(--muted); font-size:12px; margin:8px 0 0; }
.metrics { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-bottom:22px; } .metric { background:#fff; border:1px solid var(--line); border-radius:10px; padding:17px; } .metric span { color:var(--muted); font-size:11px; } .metric strong { display:block; font-size:25px; margin-top:7px; } .metric em { color:var(--success); font-size:11px; font-style:normal; }
.panel { background:#fff; border:1px solid var(--line); border-radius:10px; overflow:hidden; } .panel-head { display:flex; justify-content:space-between; align-items:center; padding:17px 18px; border-bottom:1px solid var(--line); } .panel-head h2 { margin:0; font-size:14px; } .panel-head span { font-size:11px; color:var(--muted); }
.table-wrap { overflow:auto; } table { border-collapse:collapse; width:100%; min-width:700px; } th, td { padding:14px 16px; border-bottom:1px solid #edf1f6; text-align:left; font-size:12px; vertical-align:middle; } th { color:#8290a4; font-weight:500; background:#fbfcfe; font-size:11px; } tbody tr:last-child td { border-bottom:0; } td strong { font-size:12px; } .table-sub { color:var(--muted); font-size:10px; margin-top:3px; } .status { display:inline-flex; align-items:center; gap:5px; font-size:11px; padding:4px 8px; border-radius:20px; } .status::before { content:""; width:5px; height:5px; border-radius:50%; background:currentColor; } .status.on { color:var(--success); background:#eaf9f1; } .status.off { color:#a4afbe; background:#f0f3f7; }
.model-id { color: #536b91; background: #f3f6fb; border-radius: 5px; padding: 4px 6px; font-size: 11px; }
.login-shell { min-height:calc(100vh - 72px); display:grid; place-items:center; padding:30px; background:linear-gradient(135deg,#f5f8ff 0%,#f5f8fc 58%,#edf4ff 100%); } .login-card { width:min(420px,100%); background:#fff; border:1px solid var(--line); border-radius:14px; padding:34px; box-shadow:var(--shadow); } .login-card h1 { font-size:25px; } .login-card p { color:var(--muted); font-size:13px; line-height:1.7; margin:11px 0 25px; } .field { margin-bottom:16px; } .field label { display:block; font-size:11px; color:#65758d; margin-bottom:7px; } .field input, .field textarea, .field select { width:100%; border:1px solid #d6e0ee; border-radius:7px; padding:10px 11px; outline:0; color:var(--ink); background:#fff; } .field input:focus, .field textarea:focus, .field select:focus { border-color:#8fb1f5; box-shadow:0 0 0 3px #e9f0ff; } .field textarea { min-height:80px; resize:vertical; } .field-row { display:grid; grid-template-columns:1fr 1fr; gap:12px; } .login-actions { display:flex; justify-content:space-between; align-items:center; margin-top:21px; } .hint { color:#a3adbb; font-size:11px; }
.api-key-row { display:flex; align-items:center; gap:8px; }
.api-key-row input { flex:1; min-width:0; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing:.02em; }
.api-key-link { margin-top:9px; text-decoration:none; }
.panel-form { padding:20px 18px 22px; max-width:560px; }
.modal-backdrop { position:fixed; inset:0; background:rgba(14,28,49,.55); display:grid; place-items:center; z-index:40; padding:18px; } .modal { width:min(640px,100%); max-height:calc(100vh - 36px); overflow:auto; background:#fff; border-radius:13px; box-shadow:0 24px 70px rgba(10,28,57,.24); } .modal-head { display:flex; align-items:center; justify-content:space-between; padding:20px 22px 16px; border-bottom:1px solid var(--line); } .modal-head h2 { margin:0; font-size:16px; } .modal-kicker { margin: 5px 0 0; color: var(--muted); font-size: 11px; } .close { border:0; background:#f2f5f9; color:#708099; border-radius:6px; width:28px; height:28px; } .modal-body { padding:20px 22px; } .modal-foot { display:flex; justify-content:flex-end; gap:8px; padding:15px 22px 20px; border-top:1px solid var(--line); }
.notice { padding:10px 12px; border-radius:7px; background:#fff5e8; color:#9b6a27; font-size:11px; margin-bottom:15px; } .error { color:var(--danger); font-size:11px; margin-top:8px; } .field-help { color: var(--muted); font-size: 11px; line-height: 1.7; margin: -2px 0 0; }
.footer { text-align:center; padding:22px; color:#99a6b8; font-size:11px; }
.toast { position:fixed; left:50%; bottom:26px; z-index:80; transform:translate(-50%, 16px); opacity:0; pointer-events:none; padding:10px 16px; border-radius:8px; color:#fff; background:#213452; box-shadow:0 10px 25px rgba(16,37,71,.2); font-size:12px; transition:opacity .2s ease, transform .2s ease; }
.toast.show { opacity:1; transform:translate(-50%, 0); }
.toast.error { background:#c84c5d; color:#fff; }
@media (max-width: 1100px) { .app-grid { grid-template-columns:repeat(3,minmax(0,1fr)); } .hero-row { align-items:flex-start; flex-direction:column; } }
@media (max-width: 820px) { .topbar { padding:0 18px; } .site-nav { margin-left:12px; gap:0; } .site-nav-link { padding:7px 8px; font-size:12px; } .topbar-link { display:none; } .market-shell { padding:26px 18px 45px; } .market-search-row { margin-bottom:10px; } .market-category-row { align-items:flex-start; } .app-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } .chat-shell { grid-template-columns:1fr; } .chat-side { display:none; } .chat-top { padding:18px; flex-wrap:wrap; } .chat-model-control { margin-left:auto; } .chat-messages, .chat-compose { padding-left:18px; padding-right:18px; } .admin-side { width:66px; padding:16px 8px; } .admin-brand { padding:0 8px 26px; } .admin-brand span, .admin-label, .admin-side-bottom, .admin-nav button { font-size:0; } .admin-nav button { text-align:center; padding:12px 5px; } .admin-nav button::first-letter { font-size:17px; } .admin-content { padding:24px 18px 45px; } .metrics { grid-template-columns:repeat(2,1fr); } }
@media (max-width: 520px) { .app-grid { grid-template-columns:1fr; } .hero-stats { width:100%; } .stat { flex:1; min-width:0; } .field-row { grid-template-columns:1fr; gap:0; } .login-card { padding:25px 20px; } .bubble { max-width:calc(100vw - 100px); } }