/* ═══════════════════════════════════════════
   TrainControl — Theme Variables
   ═══════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root, [data-theme="dark"] {
  --blue: #44598f;
  --blue-dk: #193068;
  --red: #d1454d;
  --green: #4da678;
  --violet: #856bb8;
  --violet-dk: #4d3380;
  --orange: #e67e22;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-bg-hover: rgba(255,255,255,0.10);
  --glass-border: rgba(255,255,255,0.09);
  --glass-border-focus: rgba(255,255,255,0.18);
  --shadow: rgba(0,0,0,0.3);
  --blur: 28px;
  --text: #e8e8ed;
  --text2: rgba(232,232,237,0.50);
  --text3: rgba(232,232,237,0.25);
  --bg: #111111;
  --bg2: #1a1a1a;
  --bg3: #222222;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-pill: 999px;
  --ease: cubic-bezier(0.4,0,0.2,1);
  --spring: cubic-bezier(0.34,1.56,0.64,1);
}

[data-theme="light"] {
  --glass-bg: rgba(0,0,0,0.04);
  --glass-bg-hover: rgba(0,0,0,0.07);
  --glass-border: rgba(0,0,0,0.08);
  --glass-border-focus: rgba(0,0,0,0.15);
  --shadow: rgba(0,0,0,0.08);
  --text: #1a1a1a;
  --text2: rgba(26,26,26,0.55);
  --text3: rgba(26,26,26,0.28);
  --bg: #f2f2f7;
  --bg2: #ffffff;
  --bg3: #e8e8ed;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-tap-highlight-color: transparent; }

body {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

#root { min-height: 100vh; min-height: 100dvh; }

/* ── Background atmosphere ── */
.app-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 20% 15%, rgba(68,89,143,0.06), transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 85%, rgba(133,107,184,0.04), transparent 60%),
    var(--bg);
}

[data-theme="light"] .app-bg {
  background:
    radial-gradient(ellipse 80% 50% at 20% 15%, rgba(68,89,143,0.05), transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 85%, rgba(133,107,184,0.03), transparent 60%),
    var(--bg);
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

/* ── Animations ── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(16px) scale(0.97); } to { opacity: 1; transform: none; } }
@keyframes stagger { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.stagger { animation: stagger 0.4s var(--spring) both; }