:root {
    --bg: #0D0D0D;
    --surface: #141414;
    --surface2: #1A1A1A;
    --surface3: #222222;
    --border: #2a2a2a;
    --border2: #333333;
    --text: #ffffff;
    --text2: #a0a0a0;
    --text3: #666666;
    --gold: #F5A623;
    --grad1: #F5A623;
    --grad2: #E8572A;
    --grad3: #D63A8A;
    --grad4: #7B2FBE;
    --gradient: linear-gradient(135deg, #F5A623, #E8572A, #D63A8A, #7B2FBE);
    --gradient-h: linear-gradient(90deg, #F5A623, #E8572A, #D63A8A, #7B2FBE);
    --success: #22c55e;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #63b3ed;
    --radius: 14px;
    --radius-sm: 8px;
    --radius-lg: 20px;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }

  html, body { -webkit-tap-highlight-color: transparent; }

  body {
    font-family: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 14px;
    line-height: 1.5;
    letter-spacing: 0;
  }

  ::-webkit-scrollbar { width: 6px; height: 6px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
  ::-webkit-scrollbar-thumb:hover { background: var(--text3); }

  .hidden { display: none !important; }
  .sep { height: 1px; background: var(--border); margin: 24px 0; }
  .flex { display: flex; }
  .flex-center { display: flex; align-items: center; }
  .flex-between { display: flex; align-items: center; justify-content: space-between; }
  .flex-col { display: flex; flex-direction: column; }
  .gap-4 { gap: 4px; } .gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .gap-16 { gap: 16px; } .gap-20 { gap: 20px; }
  .mt-4 { margin-top: 4px; } .mt-8 { margin-top: 8px; } .mt-12 { margin-top: 12px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; }
  .mb-4 { margin-bottom: 4px; } .mb-8 { margin-bottom: 8px; } .mb-12 { margin-bottom: 12px; } .mb-16 { margin-bottom: 16px; } .mb-20 { margin-bottom: 20px; } .mb-22 { margin-bottom: 22px; } .mb-24 { margin-bottom: 24px; } .mb-32 { margin-bottom: 32px; }
  .text-xs { font-size: 11px; } .text-sm { font-size: 13px; } .text-md { font-size: 14px; } .text-lg { font-size: 16px; }
  .text-muted { color: var(--text2); } .text-faint { color: var(--text3); } .text-gold { color: var(--gold); } .text-success { color: var(--success); } .text-error { color: var(--error); } .text-warning { color: var(--warning); }
  .fw-500 { font-weight: 500; } .fw-600 { font-weight: 600; } .fw-700 { font-weight: 700; }
  .text-center { text-align: center; }
  .w-full { width: 100%; }
  .pointer { cursor: pointer; }
  .section-help-btn {
    width: 26px; height: 26px; border-radius: 50%; flex-shrink: 0;
    border: 1px solid var(--border2); background: var(--surface2); color: var(--text2);
    font-size: 13px; font-weight: 700; cursor: pointer; line-height: 1;
  }
  .section-help-btn:hover { border-color: var(--gold); color: var(--gold); }
  .syne { font-family: 'Plus Jakarta Sans', sans-serif; }

  /* ── LOGO ── */
  .brand-logo {
    width: 100%;
    height: 100%;
    display: block;
  }

  .logo-stack { display: flex; align-items: center; gap: 12px; }
  .logo-icon-wrap {
    width: 42px; height: 42px;
    border-radius: 12px;
    background: #000;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
  }
  .logo-icon-wrap.sm { width: 32px; height: 32px; border-radius: 9px; }
  .logo-icon-wrap.lg { width: 64px; height: 64px; border-radius: 16px; }
  .logo-icon-wrap.xl { width: 96px; height: 96px; border-radius: 22px; }
  .logo-text {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    font-size: 22px;
    background: var(--gradient-h);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
  }
  .logo-text.sm { font-size: 17px; }
  .logo-sub {
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
    margin-top: 4px;
  }