:root {
  color-scheme: light;
  --blue: #3f49e3;
  --blue-dark: #2432b8;
  --red: #ef1c25;
  --text: #182033;
  --muted: #5f6b85;
  --ink: #0d1220;
  --ink-2: #12192a;
  --page-bg: #f5f7fb;
  --hero-grad-a: #f7f9fd;
  --hero-grad-b: #eef3fa;
  --line: rgba(24, 32, 51, 0.10);
  --line-dark: rgba(255, 255, 255, 0.08);
  --shadow: 0 14px 34px rgba(14, 22, 38, 0.05);
  --header-bg: rgba(255, 255, 255, 0.92);
  --header-border: rgba(24, 32, 51, 0.10);
  --mega-bg: #ffffff;
  --mega-border: rgba(24, 32, 51, 0.10);
  --mega-shadow: 0 24px 60px rgba(12, 18, 28, 0.12);
  --surface-card: #ffffff;
  --surface-muted: rgba(255, 255, 255, 0.78);
  --surface-input: #ffffff;
  --border-card: rgba(24, 32, 51, 0.08);
  --border-field: rgba(24, 32, 51, 0.10);
  --btn-secondary-bg: #ffffff;
  --btn-secondary-hover: #f4f7ff;
  --btn-login-bg: #ffffff;
  --btn-login-border: rgba(24, 32, 51, 0.12);
  --footer-bg: #0d1220;
  --footer-text: #a6b1c7;
  --footer-border: rgba(255, 255, 255, 0.08);
  --art-gradient: linear-gradient(135deg, #edf2ff 0%, #ffffff 60%, #ffeef0 100%);
  --art-gradient-darktile: linear-gradient(135deg, #1c2443 0%, #111a30 65%, #29131b 100%);
  --panel-dark-grad: linear-gradient(180deg, #18223a 0%, #101826 100%);
  --on-dark: #ffffff;
  --btn-secondary-border: rgba(63, 73, 227, 0.18);
}

html.theme-dark {
  color-scheme: dark;
  --text: #f4f7fb;
  --muted: #b4bfd1;
  --ink: #f4f7fb;
  --ink-2: #d5dbe8;
  --page-bg: #0f1419;
  --hero-grad-a: #121722;
  --hero-grad-b: #0b0d12;
  --line: rgba(255, 255, 255, 0.10);
  --line-dark: rgba(255, 255, 255, 0.10);
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.4);
  --header-bg: rgba(11, 13, 18, 0.92);
  --header-border: rgba(255, 255, 255, 0.08);
  --mega-bg: #161c29;
  --mega-border: rgba(255, 255, 255, 0.10);
  --mega-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  --surface-card: rgba(255, 255, 255, 0.05);
  --surface-muted: rgba(255, 255, 255, 0.08);
  --surface-input: rgba(0, 0, 0, 0.28);
  --border-card: rgba(255, 255, 255, 0.10);
  --border-field: rgba(255, 255, 255, 0.12);
  --btn-secondary-bg: rgba(255, 255, 255, 0.06);
  --btn-secondary-hover: rgba(255, 255, 255, 0.11);
  --btn-login-bg: rgba(255, 255, 255, 0.06);
  --btn-login-border: rgba(255, 255, 255, 0.14);
  --footer-bg: #070a10;
  --footer-text: #8e99af;
  --footer-border: rgba(255, 255, 255, 0.08);
  --art-gradient: linear-gradient(135deg, #1c2443 0%, #1a2030 60%, #29131b 100%);
  --art-gradient-darktile: linear-gradient(135deg, #0f1628 0%, #0d121c 65%, #1a0a10 100%);
  --panel-dark-grad: linear-gradient(180deg, #1a2438 0%, #121a28 100%);
  --btn-secondary-border: rgba(127, 135, 255, 0.42);
}