:root{--bg:#f8fafc;--bg-card:#fff;--bg-sidebar:#fff;--bg-input:#f1f5f9;--bg-hover:#f1f5f9;--border:#e2e8f0;--border-light:#f1f5f9;--text:#1e293b;--text-secondary:#64748b;--text-muted:#94a3b8;--text-faint:#cbd5e1;--accent:#6366f1;--accent-light:#eef2ff;--accent-hover:#4f46e5;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--info:#3b82f6;--font:system-ui,-apple-system,'Segoe UI',sans-serif;--mono:'SF Mono',ui-monospace,SFMono-Regular,monospace;--radius:10px;--shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04)}
[data-theme="dark"]{--bg:#0a0a12;--bg-card:#141421;--bg-sidebar:#0f0f1a;--bg-input:#1a1a2a;--bg-hover:#1f1f30;--border:#2a2a3d;--border-light:#1f1f30;--text:#e5e7eb;--text-secondary:#a1a1aa;--text-muted:#737383;--text-faint:#52525b;--accent:#818cf8;--accent-light:rgba(129,140,248,.14);--accent-hover:#a5b4fc;--success:#34d399;--warning:#fbbf24;--danger:#f87171;--info:#60a5fa;--shadow:0 1px 3px rgba(0,0,0,.5),0 1px 2px rgba(0,0,0,.4)}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
.top-bar{background:var(--bg-card);border-bottom:1px solid var(--border);padding:16px 32px;display:flex;align-items:center;justify-content:space-between}
.top-bar .logo{font-size:1.5rem;font-weight:700;color:var(--accent);letter-spacing:-.02em}
.top-bar .logo span{color:var(--text-secondary);font-size:.875rem;font-weight:400;margin-left:12px}
.top-bar .user-info{color:var(--text-secondary);font-size:.8125rem;display:flex;align-items:center;gap:12px}
.top-bar .logout-btn{background:none;border:1px solid var(--border);color:var(--text-secondary);padding:6px 14px;border-radius:6px;cursor:pointer;font-size:.8125rem}
.top-bar .logout-btn:hover{border-color:var(--accent);color:var(--text)}
.container{max-width:1100px;margin:0 auto;padding:24px 32px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:20px;text-align:center;box-shadow:var(--shadow)}
.stat-card .value{font-size:2rem;font-weight:700;color:var(--accent)}
.stat-card .label{color:var(--text-muted);font-size:.8125rem;margin-top:4px}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}
.card h2{font-size:1.125rem;margin-bottom:16px;color:var(--text)}
table{width:100%;border-collapse:collapse}
th{text-align:left;padding:10px 12px;color:var(--text-muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;border-bottom:1px solid var(--border)}
td{padding:10px 12px;border-bottom:1px solid var(--border-light);font-size:.875rem;color:var(--text)}
tr:hover td{background:var(--bg-hover)}
.form-row{display:flex;gap:12px;margin-bottom:16px;align-items:flex-end}
.form-group{flex:1}
.form-group label{display:block;color:var(--text-secondary);font-size:.75rem;margin-bottom:4px;font-weight:500}
.form-group input{width:100%;padding:8px 12px;font-size:.875rem;color:var(--text);background:var(--bg-input);border:1px solid var(--border);border-radius:6px;outline:none;font-family:inherit}
.form-group input:focus{border-color:var(--accent);box-shadow:0 0 0 2px rgba(99,102,241,.15)}
.form-group input::placeholder{color:var(--text-faint)}
.btn{padding:8px 16px;border:1px solid var(--border);border-radius:6px;cursor:pointer;font-size:.8125rem;font-weight:500;transition:all .15s;background:var(--bg-input);color:var(--text-secondary);font-family:inherit}
.btn:hover{background:var(--border);color:var(--text)}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:#6D28D9;color:#fff;border-color:#6D28D9}
.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}
.login-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:48px 40px;max-width:400px;width:100%;text-align:center;box-shadow:0 25px 50px -12px rgba(0,0,0,.08)}
.login-card .logo{font-size:2rem;font-weight:700;color:var(--accent);margin-bottom:8px}
.login-card .subtitle{color:var(--text-muted);font-size:.875rem;margin-bottom:32px}
.login-card .form-group{text-align:left;margin-bottom:16px}
.login-card .btn{width:100%;padding:12px;font-size:1rem;margin-top:8px}
.login-error{color:#ef4444;font-size:.875rem;margin-top:12px;display:none}
.hidden{display:none}
.empty{text-align:center;padding:48px;color:var(--text-faint)}
.chart-container{position:relative;height:180px;padding:0;display:flex;align-items:flex-end;gap:4px;overflow:hidden}
.chart-tooltip{position:absolute;background:var(--text);border-radius:6px;padding:8px 12px;font-size:.75rem;color:#fff;pointer-events:none;z-index:10;white-space:nowrap;opacity:0;transition:opacity .15s}
.chart-tooltip.visible{opacity:1}
.donut-chart{position:relative;display:flex;align-items:center;gap:20px}
.donut-legend{font-size:.8rem;line-height:2}
.donut-legend-dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px}
.progress-ring{position:relative;display:inline-flex;align-items:center;justify-content:center}
.progress-ring-text{position:absolute;font-size:1.1rem;font-weight:700;color:var(--text)}
.hbar-row{display:flex!important;align-items:center!important;gap:8px;margin-bottom:8px;font-size:.8rem;line-height:1.2!important}
.hbar-label{width:120px;color:var(--text-secondary);text-overflow:ellipsis;overflow:hidden;white-space:nowrap;flex-shrink:0}
.hbar-track{flex:1;height:12px;background:var(--bg-input);border-radius:6px;overflow:hidden;min-width:60px}
.hbar-fill{height:100%;border-radius:6px;transition:width .4s}
.hbar-value{width:40px;text-align:right;color:var(--text);font-weight:600;font-size:.75rem;flex-shrink:0}
.chart-bar-wrap{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;min-width:0}
.chart-value{font-size:.65rem;color:var(--text-secondary);margin-bottom:4px;white-space:nowrap}
.chart-bar{width:70%;background:linear-gradient(to top,#6366f1,#a5b4fc);border-radius:4px 4px 0 0;transition:height .3s;min-height:2px}
.chart-label{font-size:.6rem;color:var(--text-faint);margin-top:5px;white-space:nowrap}
.balance-row{display:flex;gap:16px;margin-bottom:24px}
.balance-card{flex:1;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:20px;text-align:center;box-shadow:var(--shadow)}
.balance-card .value{font-size:1.75rem;font-weight:700;color:var(--success)}
.balance-card .value.cap{color:var(--warning)}
.balance-card .label{color:var(--text-muted);font-size:.8125rem;margin-top:4px}
.chat-wrap{display:flex;flex-direction:column;gap:12px}
.chat-controls{display:flex;gap:12px;align-items:flex-end}
.chat-select{padding:8px 12px;font-size:.875rem;color:var(--text);background:var(--bg-input);border:1px solid var(--border);border-radius:6px;outline:none;font-family:inherit}
.chat-log{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:14px;min-height:260px;max-height:460px;overflow:auto}
.chat-msg{margin-bottom:12px;padding:10px 12px;border-radius:8px;line-height:1.45;word-break:break-word}
.chat-msg.user{background:var(--accent-light);border:1px solid #c7d2fe}
.chat-msg.assistant{background:var(--bg-card);border:1px solid var(--border)}
.chat-msg .role{display:block;color:var(--text-secondary);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}
/* Markdown styles for chat messages */
.chat-msg p{margin:0 0 8px 0}
.chat-msg p:last-child{margin-bottom:0}
.chat-msg code{font-family:'SF Mono',Consolas,'Liberation Mono',Menlo,monospace;font-size:.88em;background:#f1f5f9;padding:2px 6px;border-radius:5px;color:#334155}
.chat-msg pre{margin:10px 0;border-radius:10px;overflow:hidden;background:#1e293b;border:1px solid #334155}
.chat-msg pre .code-header{display:flex;align-items:center;justify-content:space-between;padding:6px 12px;background:#0f172a;border-bottom:1px solid #334155;font-size:.75rem;color:#94a3b8}
.chat-msg pre .code-header .lang{text-transform:uppercase;font-weight:600;letter-spacing:.03em}
.chat-msg pre .copy-btn{background:transparent;border:1px solid #475569;color:#94a3b8;border-radius:6px;padding:2px 8px;font-size:.72rem;cursor:pointer}
.chat-msg pre .copy-btn:hover{background:#334155;color:#e2e8f0}
.chat-msg pre code{display:block;padding:12px 14px;overflow-x:auto;background:transparent;border-radius:0;font-size:.85rem;line-height:1.5;color:#e2e8f0}
.chat-msg h1,.chat-msg h2,.chat-msg h3,.chat-msg h4{margin:12px 0 6px;font-weight:700}
.chat-msg h1{font-size:1.15em}
.chat-msg h2{font-size:1.05em}
.chat-msg h3{font-size:.98em}
.chat-msg ul,.chat-msg ol{margin:6px 0;padding-left:22px}
.chat-msg li{margin-bottom:3px}
.chat-msg blockquote{border-left:3px solid var(--accent);padding:4px 12px;margin:8px 0;color:var(--text-secondary);background:var(--accent-light);border-radius:0 6px 6px 0}
.chat-msg a{color:var(--accent);text-decoration:none}
.chat-msg a:hover{text-decoration:underline}
.chat-msg hr{border:none;border-top:1px solid var(--border);margin:10px 0}
.chat-msg table{border-collapse:collapse;margin:8px 0;width:100%;font-size:.88em}
.chat-msg th,.chat-msg td{border:1px solid var(--border);padding:6px 10px;text-align:left}
.chat-msg th{background:var(--bg-input);font-weight:600}
.chat-msg strong{font-weight:700}
.chat-msg em{font-style:italic}
.chat-input-row{display:flex;gap:10px}
.chat-input{flex:1;min-height:88px;padding:10px 12px;font-size:.9rem;color:var(--text);background:var(--bg-input);border:1px solid var(--border);border-radius:8px;outline:none;font-family:inherit;resize:vertical}
.chat-status{color:var(--text-secondary);font-size:.8rem;min-height:18px}
.chat-history{display:flex;gap:10px;align-items:center}
.chat-history .chat-select{flex:1}
/* ── Theme toggle ── */
.theme-toggle{background:none;border:1px solid var(--border);color:var(--text-secondary);width:34px;height:34px;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0;transition:all .15s;flex-shrink:0}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent)}
.theme-toggle svg{width:16px;height:16px}
.theme-toggle .icon-sun{display:none}
[data-theme="dark"] .theme-toggle .icon-sun{display:block}
[data-theme="dark"] .theme-toggle .icon-moon{display:none}
/* Keep code-block styling readable in both themes; hardcoded-dark pre panels inside the dashboard remain dark by design. */
/* ── Responsive ── */
@media (max-width:900px){
  .top-bar{padding:12px 16px;flex-wrap:wrap;gap:10px}
  .top-bar .logo{font-size:1.25rem}
  .top-bar .user-info{font-size:.75rem;gap:8px;flex-wrap:wrap}
  .container{padding:20px 16px}
  .card{padding:18px}
  .card,.modal-card{overflow-x:auto}
  .form-row{flex-wrap:wrap}
  .form-row .form-group{min-width:160px}
}
@media (max-width:640px){
  .top-bar{padding:10px 12px}
  .top-bar .logo{font-size:1.1rem}
  .top-bar .logo span{margin-left:6px;font-size:.75rem}
  .top-bar .user-info #user-display{display:none}
  .container{padding:14px 12px}
  .card{padding:14px;margin-bottom:14px;border-radius:10px}
  .card h2{font-size:1rem}
  .stats{grid-template-columns:repeat(2,1fr);gap:10px}
  .stat-card{padding:14px}
  .stat-card .value{font-size:1.4rem}
  .balance-row{flex-direction:column;gap:10px}
  .balance-card{padding:16px}
  .balance-card .value{font-size:1.35rem}
  .chart-container{height:150px}
  .chat-input-row{flex-direction:column}
  .chat-controls{flex-wrap:wrap}
  .login-card{padding:32px 24px}
  /* doc-panel grid collapses so API snippets stack on mobile */
  #docs-section [style*="grid-template-columns:1fr 1fr"]{display:block !important}
  #docs-section [style*="grid-template-columns:1fr 1fr"] > div{margin-bottom:14px}
  .doc-tab{padding:8px 12px;font-size:.75rem}
}
@media (max-width:420px){
  .stats{grid-template-columns:1fr}
}