/* ═══════════════════════════════════════════════
   SPRITE-INDEX — Base: variables, reset, typography
   ═══════════════════════════════════════════════ */

@keyframes neonPulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

@keyframes scanLine {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes glowBreathe {
  0%, 100% { box-shadow: 0 0 15px rgba(0, 225, 255, 0.15), inset 0 0 15px rgba(0, 0, 0, 0.1); }
  50% { box-shadow: 0 0 25px rgba(0, 225, 255, 0.3), inset 0 0 20px rgba(0, 0, 0, 0.15); }
}

@keyframes cardEntrance {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

:root {
  --bg: #060a18;
  --bg-2: #0b1029;
  --surface: rgba(15, 25, 60, 0.65);
  --surface-strong: rgba(20, 35, 80, 0.7);
  --glass: rgba(255, 255, 255, 0.04);
  --text: #eef0ff;
  --muted: #7b85b8;
  --line: rgba(100, 140, 255, 0.15);
  --line-glow: rgba(0, 225, 255, 0.25);
  --accent: #8d7cff;
  --accent-2: #00e1ff;
  --accent-3: #c945ff;
  --success: #00ff87;
  --danger: #ff3a6e;
  --warning: #ffcc00;
  --shadow: 0 8px 40px rgba(0, 0, 0, 0.6), 0 0 80px rgba(0, 225, 255, 0.06);
  --shadow-glow: 0 0 20px rgba(0, 225, 255, 0.12);
  --font-heading: "Rajdhani", "Inter", sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
}

body.light {
  --bg: #e8ecfa;
  --bg-2: #dde3f5;
  --surface: rgba(255, 255, 255, 0.75);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --glass: rgba(255, 255, 255, 0.5);
  --text: #0e1230;
  --muted: #555f8a;
  --line: rgba(80, 100, 200, 0.18);
  --line-glow: rgba(100, 100, 255, 0.15);
  --shadow: 0 8px 40px rgba(70, 80, 150, 0.18);
  --shadow-glow: 0 0 12px rgba(100, 100, 255, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100dvh;
  margin: 0;
  color: var(--text);
  font-family: var(--font-body);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse at 15% 5%, rgba(141, 124, 255, 0.22), transparent 40%),
    radial-gradient(ellipse at 85% 95%, rgba(0, 225, 255, 0.14), transparent 40%),
    radial-gradient(ellipse at 50% 50%, rgba(201, 69, 255, 0.06), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0, 225, 255, 0.015) 2px,
      rgba(0, 225, 255, 0.015) 4px
    );
  pointer-events: none;
  z-index: 9999;
}

button, input, select, textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

/* ── Typography ── */
h1, h2, p {
  margin: 0;
}

h1, h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(2.1rem, 8vw, 4.8rem);
  line-height: 0.94;
  letter-spacing: 0.04em;
}

h2 {
  letter-spacing: 0.03em;
}

.eyebrow {
  color: var(--accent-2);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.7rem;
  margin-bottom: 5px;
  font-family: var(--font-heading);
  text-shadow: 0 0 12px rgba(0, 225, 255, 0.4);
}

.muted, .hint {
  color: var(--muted);
}