:root {
  --bg: #f5f7fc;
  --bg-soft: #eef2fa;
  --surface: #ffffff;
  --border: #e7ecf5;
  --border-strong: #d8e0ef;

  --text: #101c3d;
  --text-2: #45506b;
  --text-3: #8b95ad;

  --blue: #2e6bff;
  --blue-deep: #1f4fd1;
  --blue-soft: #eaf1ff;
  --cyan: #35b6f6;
  --cyan-soft: #e6f7fe;
  --violet: #7c5cff;
  --violet-soft: #f1edff;
  --mint: #2ecfa0;
  --mint-soft: #e6faf3;

  --red: #f4536b;
  --red-soft: #fdecef;
  --orange: #ff9f43;
  --orange-soft: #fff4e5;
  --green: #22c55e;
  --green-soft: #e9f9f0;

  --grad-ai: linear-gradient(120deg, #2e6bff 0%, #7c5cff 100%);
  --grad-ai-soft: linear-gradient(120deg, #eaf1ff 0%, #f1edff 100%);
  --grad-cyan: linear-gradient(120deg, #35b6f6 0%, #2e6bff 100%);

  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 18px;
  --r-xl: 22px;

  --shadow-sm: 0 1px 2px rgba(16, 28, 61, 0.04), 0 2px 8px rgba(16, 28, 61, 0.04);
  --shadow-md: 0 4px 16px rgba(16, 28, 61, 0.07);
  --shadow-lg: 0 12px 36px rgba(46, 107, 255, 0.12);
  --glow-ai: 0 0 0 1px rgba(124, 92, 255, 0.12), 0 8px 28px rgba(46, 107, 255, 0.14);

  --sidebar-w: 256px;
  --topbar-h: 64px;
  --rail-w: 320px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Segoe UI", sans-serif;
}

/* Enterprise theme: flat business blue, sharp corners, no decorative artwork */
body[data-theme="enterprise"] {
  --bg: #f4f6fa;
  --bg-soft: #e9edf4;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --blue: #1d4ed8;
  --blue-deep: #1e3a8a;
  --blue-soft: #e5edfb;
  --cyan: #0369a1;
  --cyan-soft: #e5f0f9;
  --violet: #1d4ed8;
  --violet-soft: #e5edfb;

  --grad-ai: linear-gradient(120deg, #1d4ed8 0%, #1d4ed8 100%);
  --grad-ai-soft: linear-gradient(120deg, #e5edfb 0%, #e5edfb 100%);
  --grad-cyan: linear-gradient(120deg, #0369a1 0%, #1d4ed8 100%);

  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 10px;
  --r-xl: 12px;

  --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.08);
  --glow-ai: 0 0 0 1px rgba(29, 78, 216, 0.12), 0 6px 20px rgba(29, 78, 216, 0.1);
}

body[data-theme="enterprise"] .app-main {
  background-image: none;
  background-color: var(--bg);
}

body[data-theme="enterprise"] .sidebar-brand img,
body[data-theme="enterprise"] .settings-hero img,
body[data-theme="enterprise"] .hero img.hero-orb {
  animation: none;
}