/* ══════════════════════════════════════════════════════════
   THEME & ANIMATIONS
══════════════════════════════════════════════════════════ */
:root {
  --void: #000000;
  --deep: #020204;
  --surface: #080810;
  --panel: #0c0c18;
  --c: #00f5ff;
  --c2: #ff003c;
  --c3: #00ff88;
  --c4: #ffaa00;
  --c5: #7c3aed;
  --dim: rgba(0,245,255,0.06);
  --border: rgba(0,245,255,0.12);
  --border-hi: rgba(0,245,255,0.35);
  --text: #e2e8f0;
  --muted: #a0aec0;
  --bright: #ffffff;
  --font-ui: 'Rajdhani', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
  --font-display: 'Orbitron', sans-serif;
  --transition: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--void);
  color: var(--text);
  font-family: var(--font-ui);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  cursor: crosshair;
}

/* ─── AMBIENT BG ─── */
.bg-ambient {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,30,50,0.5) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 0% 100%, rgba(124,58,237,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 100% 100%, rgba(0,245,255,0.04) 0%, transparent 60%);
}
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,245,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridShift 20s linear infinite;
}
@keyframes gridShift { 0% { background-position: 0 0; } 100% { background-position: 60px 60px; } }

.scanline {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(0,0,0,0.06) 3px, rgba(0,0,0,0.06) 4px);
}

@keyframes screenIn {
  from { opacity: 0; transform: translateY(16px) scale(0.985); filter: blur(8px); }
  to   { opacity: 1; transform: none; filter: none; }
}

@keyframes shimmerSlide { to { left: 200%; } }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.2; } }

@keyframes titleFlicker {
  0%,95%,100% { opacity: 1; }
  96% { opacity: 0.7; }
  97% { opacity: 1; }
  98% { opacity: 0.5; }
  99% { opacity: 1; }
}

@keyframes boxIn { from { opacity:0; transform: scale(0.9) translateY(20px); } to { opacity:1; transform: none; } }

@keyframes copyPop {
  0% { transform: scale(1); }
  30% { transform: scale(1.1); }
  60% { transform: scale(0.97); }
  100% { transform: scale(1); }
}

@keyframes checkPop { 0% { transform: scale(0.5) rotate(-10deg); } 100% { transform: scale(1) rotate(0); } }

@keyframes glitchFlash {
  0% { opacity: 1; filter: brightness(1); }
  10% { opacity: 0.8; filter: brightness(1.8) hue-rotate(10deg); }
  20% { opacity: 1; filter: brightness(1); }
  30% { opacity: 0.6; filter: brightness(2) hue-rotate(-5deg); }
  40% { opacity: 1; filter: brightness(1); }
  100% { opacity: 1; filter: brightness(1); }
}

@keyframes sigInvalid {
  0% { transform: translateX(0); }
  10% { transform: translateX(-6px); }
  20% { transform: translateX(6px); }
  30% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  50% { transform: translateX(-2px); }
  60% { transform: translateX(2px); }
  100% { transform: translateX(0); }
}

@keyframes sigValid {
  0% { box-shadow: 0 0 0 rgba(0,255,136,0); }
  50% { box-shadow: 0 0 30px rgba(0,255,136,0.4), 0 0 60px rgba(0,255,136,0.1); }
  100% { box-shadow: 0 0 15px rgba(0,255,136,0.2); }
}

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