:root,
.rt {
  --rt-bg: #0e0719;
  --rt-bg-2: #140c22;
  --rt-surface: #1a122c;
  --rt-surface-2: #231738;
  --rt-surface-3: #2d2050;
  --rt-border: rgba(168, 85, 247, 0.18);
  --rt-border-strong: rgba(168, 85, 247, 0.34);
  --rt-fg: #f6f0ff;
  --rt-fg-strong: #ffffff;
  --rt-fg-muted: rgba(233, 225, 247, 0.72);
  --rt-fg-brand: #d9abff;
  --rt-text: var(--rt-fg);
  --rt-muted: rgba(233, 225, 247, 0.58);
  --rt-ink: #f6f0ff;
  --rt-gray-900: #120d1f;
  --rt-ivory: #f8f3ff;
  --rt-ivory-2: #efe4ff;
  --rt-lavander: #9f7aea;
  --rt-shine: linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0));

  --rt-purple-50: rgba(168, 85, 247, 0.12);
  --rt-purple-100: rgba(168, 85, 247, 0.18);
  --rt-purple-200: rgba(168, 85, 247, 0.28);
  --rt-purple-300: rgba(168, 85, 247, 0.42);
  --rt-purple-400: #c084fc;
  --rt-purple-500: #a855f7;
  --rt-purple-600: #9333ea;
  --rt-purple-700: #7c3aed;
  --rt-purple-800: #6d28d9;
  --rt-purple-900: #581c87;

  --rt-orange-50: rgba(255, 148, 74, 0.12);
  --rt-orange-500: #ff9a4d;
  --rt-orange-600: #ff8a2e;
  --rt-orange-700: #e66b0f;

  --rt-success: #52d6a6;
  --rt-success-bg: rgba(82, 214, 166, 0.12);
  --rt-warning: #ffbf66;
  --rt-warning-bg: rgba(255, 191, 102, 0.12);
  --rt-danger: #ff6d84;
  --rt-danger-bg: rgba(255, 109, 132, 0.12);

  --rt-aurora: linear-gradient(135deg, #a855f7 0%, #6d28d9 45%, #ff8a2e 100%);
  --rt-aurora-soft: linear-gradient(135deg, rgba(168,85,247,0.18), rgba(109,40,217,0.08), rgba(255,138,46,0.14));
  --rt-aurora-strong: linear-gradient(135deg, #c084fc 0%, #8b5cf6 36%, #ff8a2e 100%);
  --rt-shadow-xs: 0 1px 1px rgba(10, 8, 18, 0.28), 0 1px 2px rgba(10, 8, 18, 0.24);
  --rt-shadow-sm: 0 2px 6px rgba(10, 8, 18, 0.22), 0 1px 3px rgba(10, 8, 18, 0.18);
  --rt-shadow-md: 0 8px 20px -8px rgba(10, 8, 18, 0.50);
  --rt-shadow-lg: 0 16px 36px -16px rgba(10, 8, 18, 0.56);
  --rt-shadow-xl: 0 24px 54px -20px rgba(10, 8, 18, 0.64);
  --rt-shadow-brand: 0 10px 24px -12px rgba(168, 85, 247, 0.55);
  --rt-shadow-accent: 0 10px 24px -12px rgba(255, 138, 46, 0.48);

  --rt-font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --rt-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --rt-fs-11: 11px;
  --rt-fs-12: 12px;
  --rt-fs-13: 13px;
  --rt-fs-14: 14px;
  --rt-fs-16: 16px;
  --rt-fs-18: 18px;
  --rt-fs-20: 20px;
  --rt-fs-24: 24px;
  --rt-fs-32: 32px;
  --rt-lh-body: 1.45;
  --rt-lh-display: 1.12;
  --rt-ls-wide: 0.08em;
  --rt-ls-snug: -0.02em;

  --rt-radius-sm: 10px;
  --rt-radius-md: 14px;
  --rt-radius-lg: 18px;
  --rt-radius-pill: 999px;

  color-scheme: dark;
}

body.rt {
  color: var(--rt-fg);
  background: var(--rt-bg);
}