:root {
      --bg:          #080c10;
      --bg2:         #0d1219;
      --bg3:         #111820;
      --border:      #1a2530;
      --border2:     #243040;
      --accent:      #2e8fff;
      --accent-dim:  rgba(46,143,255,0.12);
      --accent-glow: rgba(46,143,255,0.20);
      --text:        #e2eaf4;
      --text2:       #7a8fa0;
      --text3:       #3a4d5e;
      --green:       #00d48a;
      --green-dim:   rgba(0,212,138,0.12);
      --red:         #ff4d6a;
      --red-dim:     rgba(255,77,106,0.12);
      --yellow:      #ffb020;
      --nav-w:       220px;
      --header-h:    56px;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html, body { height: 100%; overflow: hidden; background: var(--bg); color: var(--text); font-family: 'Syne', sans-serif; }

    /* ── Layout — CSS Grid ── */
    #app {
      display: grid;
      grid-template-columns: var(--nav-w) 1fr;
      grid-template-rows: 100vh;
      height: 100vh;
      opacity: 0;
      transition: opacity 0.3s;
    }
    #app.ready { opacity: 1; }

    /* ── Sidebar ── */
    #sidebar {
      grid-column: 1;
      grid-row: 1;
      display: flex;
      flex-direction: column;
      background: var(--bg2);
      border-right: 1px solid var(--border);
      overflow: hidden;
      height: 100vh;
    }

    /* ── Main area ── */
    #main {
      grid-column: 2;
      grid-row: 1;
      display: grid;
      grid-template-rows: var(--header-h) 1fr;
      height: 100vh;
      overflow: hidden;
    }

    /* ── Top bar ── */
    #topbar {
      grid-row: 1;
      height: var(--header-h);
      background: var(--bg2);
      border-bottom: 1px solid var(--border);
      display: flex; align-items: center; gap: 16px;
      padding: 0 24px;
    }

    /* ── Content ── */
    #content {
      grid-row: 2;
      overflow-y: auto;
      overflow-x: hidden;
      padding: 24px;
      padding-bottom: 48px;
      -webkit-overflow-scrolling: touch;
    }

        .sidebar-logo {
      height: var(--header-h);
      display: flex; align-items: center; gap: 10px;
      padding: 0 20px;
      border-bottom: 1px solid var(--border);
      flex-shrink: 0;
    }
    .logo-mark {
      width: 30px; height: 30px;
      background: linear-gradient(135deg, var(--accent), #0055cc);
      border-radius: 7px;
      display: flex; align-items: center; justify-content: center;
      font-size: 13px; font-weight: 800; color: #fff;
      box-shadow: 0 0 16px var(--accent-glow);
      flex-shrink: 0;
    }
    .logo-text { font-size: 17px; font-weight: 800; letter-spacing: -0.5px; }
    .logo-text span { color: var(--accent); }

    .nav-section { padding: 16px 12px 8px; flex-shrink: 0; }
    .nav-label { font-size: 10px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; color: var(--text3); padding: 0 8px; margin-bottom: 4px; }

    .nav-item {
      display: flex; align-items: center; gap: 10px;
      padding: 9px 12px; border-radius: 8px;
      font-size: 13px; font-weight: 600;
      color: var(--text2); cursor: pointer;
      transition: background 0.15s, color 0.15s;
      user-select: none;
    }
    .nav-item:hover { background: var(--bg3); color: var(--text); }
    .nav-item.active { background: var(--accent-dim); color: var(--accent); }
    .nav-item svg { width: 15px; height: 15px; flex-shrink: 0; opacity: 0.7; }
    .nav-item.active svg { opacity: 1; }

    .sidebar-footer {
      margin-top: auto;
      border-top: 1px solid var(--border);
      padding: 12px;
      flex-shrink: 0;
    }
    .user-badge {
      display: flex; align-items: center; gap: 10px;
      padding: 8px 10px; border-radius: 8px;
      cursor: pointer; transition: background 0.15s;
    }
    .user-badge:hover { background: var(--bg3); }
    .user-avatar {
      width: 28px; height: 28px; border-radius: 50%;
      background: linear-gradient(135deg, var(--accent), #0055cc);
      display: flex; align-items: center; justify-content: center;
      font-size: 11px; font-weight: 700; color: #fff; flex-shrink: 0;
    }
    .user-info { flex: 1; min-width: 0; }
    .user-name { font-size: 12px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .user-role { font-size: 10px; color: var(--text3); font-family: 'DM Mono', monospace; }
    .logout-btn {
      background: none; border: none; cursor: pointer;
      color: var(--text3); padding: 4px; border-radius: 4px;
      transition: color 0.15s;
    }
    .logout-btn:hover { color: var(--red); }

    /* ── Main area ──────────────────────────── */
    #main {
      grid-column: 2;
      grid-row: 1;
      display: grid;
      grid-template-rows: var(--header-h) 1fr;
      height: 100vh;
      overflow: hidden;
    }

    /* ── Top bar ────────────────────────────── */
    #topbar {
      grid-row: 1;
      height: var(--header-h);
      background: var(--bg2);
      border-bottom: 1px solid var(--border);
      display: flex; align-items: center; gap: 16px;
      padding: 0 24px;
    }
    .page-title { font-size: 15px; font-weight: 700; flex: 1; }
    .topbar-search {
      display: flex; align-items: center; gap: 8px;
      background: var(--bg3); border: 1px solid var(--border);
      border-radius: 8px; padding: 0 12px; height: 34px;
      width: 220px;
    }
    .topbar-search input {
      background: none; border: none; outline: none;
      font-family: 'DM Mono', monospace; font-size: 13px;
      color: var(--text); width: 100%;
    }
    .topbar-search input::placeholder { color: var(--text3); }
    .topbar-search svg { color: var(--text3); flex-shrink: 0; }
    .market-status {
      display: flex; align-items: center; gap: 6px;
      font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text2);
    }
    .status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 2s ease-in-out infinite; }
    @keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

    /* ── Content ────────────────────────────── */
    #content {
      grid-row: 2;
      overflow-y: auto;
      overflow-x: hidden;
      padding: 24px;
      padding-bottom: 48px;
      -webkit-overflow-scrolling: touch;
    }
    #content::-webkit-scrollbar { width: 6px; }
    #content::-webkit-scrollbar-track { background: transparent; }
    #content::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

    /* ── Pages ──────────────────────────────── */
    .page { display: none; }
    .page.active { display: block; }

    /* ── Cards ──────────────────────────────── */
    .card {
      background: var(--bg2); border: 1px solid var(--border);
      border-radius: 12px; padding: 20px;
    }
    .card-title { font-size: 12px; font-weight: 700; letter-spacing: 0.8px; text-transform: uppercase; color: var(--text3); margin-bottom: 16px; }

    /* ── Stats row ──────────────────────────── */
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
    .stat-card {
      background: var(--bg2); border: 1px solid var(--border);
      border-radius: 12px; padding: 18px 20px;
    }
    .stat-label { font-size: 11px; font-weight: 700; letter-spacing: 0.8px; text-transform: uppercase; color: var(--text3); margin-bottom: 8px; }
    .stat-value { font-size: 22px; font-weight: 800; letter-spacing: -0.5px; font-family: 'DM Mono', monospace; }
    .stat-change { font-size: 12px; font-family: 'DM Mono', monospace; margin-top: 4px; }
    .up   { color: var(--green); }
    .down { color: var(--red); }

    /* ── Table ──────────────────────────────── */
    .data-table { width: 100%; border-collapse: collapse; }
    .data-table th { font-size: 10px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--text3); padding: 0 12px 12px; text-align: left; }
    .data-table th:not(:first-child) { text-align: right; }
    .data-table td { padding: 12px; border-top: 1px solid var(--border); font-family: 'DM Mono', monospace; font-size: 13px; }
    .data-table td:not(:first-child) { text-align: right; }
    .data-table tr:hover td { background: var(--bg3); }
    .ticker-cell { font-weight: 700; color: var(--accent); font-size: 13px; }
    .name-cell { color: var(--text2); font-size: 12px; font-family: 'Syne', sans-serif; }

    /* ── Grid layouts ───────────────────────── */
    .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .three-col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

    /* ── Chart placeholder ──────────────────── */
    .chart-area {
      height: 200px; border-radius: 8px; overflow: hidden;
      background: var(--bg3); border: 1px solid var(--border);
      display: flex; align-items: center; justify-content: center;
      color: var(--text3); font-size: 13px; font-family: 'DM Mono', monospace;
      margin-top: 12px; position: relative;
    }
    #asset-chart { height: 280px; }
    .mini-chart { height: 52px; }

    /* ── Badge ──────────────────────────────── */
    .badge {
      display: inline-block; padding: 2px 8px; border-radius: 4px;
      font-size: 10px; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase;
      font-family: 'DM Mono', monospace;
    }
    .badge-green { background: var(--green-dim); color: var(--green); }
    .badge-red   { background: var(--red-dim);   color: var(--red); }
    .badge-blue  { background: var(--accent-dim); color: var(--accent); }
    .badge-gray  { background: var(--bg3); color: var(--text2); border: 1px solid var(--border2); }

    /* ── Score bar ──────────────────────────── */
    .score-bar { display: flex; align-items: center; gap: 10px; }
    .score-track { flex: 1; height: 4px; background: var(--bg3); border-radius: 2px; overflow: hidden; }
    .score-fill { height: 100%; border-radius: 2px; background: var(--accent); transition: width 0.6s; }
    .score-fill.high { background: var(--green); }
    .score-fill.low  { background: var(--red); }
    .score-num { font-family: 'DM Mono', monospace; font-size: 12px; font-weight: 500; width: 32px; text-align: right; }

    /* ── Empty state ────────────────────────── */
    .empty-state {
      text-align: center; padding: 48px 24px;
      color: var(--text3); font-size: 13px;
    }
    .empty-state svg { opacity: 0.3; margin-bottom: 12px; }

    /* ── Loading skeleton ───────────────────── */
    .skel {
      background: linear-gradient(90deg, var(--bg3) 25%, var(--border) 50%, var(--bg3) 75%);
      background-size: 200% 100%;
      animation: skel 1.4s ease-in-out infinite;
      border-radius: 4px;
    }
    @keyframes skel { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

    /* ── Settings form ──────────────────────── */
    .form-group { margin-bottom: 20px; }
    .form-label { font-size: 11px; font-weight: 700; letter-spacing: 0.8px; text-transform: uppercase; color: var(--text3); margin-bottom: 8px; display: block; }
    .form-input {
      width: 100%; background: var(--bg3); border: 1px solid var(--border2);
      border-radius: 8px; padding: 10px 14px;
      font-family: 'DM Mono', monospace; font-size: 13px; color: var(--text);
      outline: none; transition: border-color 0.2s;
    }
    .form-input:focus { border-color: var(--accent); }
    .btn {
      padding: 10px 20px; border-radius: 8px; border: none; cursor: pointer;
      font-family: 'Syne', sans-serif; font-size: 13px; font-weight: 700;
      transition: background 0.2s, opacity 0.2s;
    }
    .btn-primary { background: var(--accent); color: #fff; }
    .btn-primary:hover { background: #3d99ff; }
    .btn-ghost { background: var(--bg3); color: var(--text2); border: 1px solid var(--border2); }
    .btn-ghost:hover { color: var(--text); }

    /* ── Scrollbar for content ──────────────── */
    * { scrollbar-width: thin; scrollbar-color: var(--border2) transparent; }