/* ── Falling Fury — Web Styles ── */

:root {
  --bg-start: #0b0a1a;
  --bg-mid: #131136;
  --bg-end: #1c1a3a;
  --surface: rgba(255, 255, 255, 0.05);
  --surface-border: rgba(255, 255, 255, 0.08);
  --text: #eee8f5;
  --text-muted: rgba(238, 232, 245, 0.5);
  --accent: #a78bfa;
  --accent-glow: rgba(167, 139, 250, 0.35);
  --danger: #f87171;
  --success: #34d399;
  --gold: #fbbf24;
  --radius: 14px;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  font-family: "Outfit", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: linear-gradient(155deg, var(--bg-start), var(--bg-mid) 40%, var(--bg-end));
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px 16px 40px;
  overflow-x: hidden;
}

/* ── Page Container ── */
.page {
  width: min(860px, 100%);
}

/* ── Header / HUD ── */
.title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.hud h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  background: linear-gradient(135deg, #a78bfa 0%, #818cf8 40%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.wave-badge {
  display: inline-block;
  padding: 3px 12px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--bg-start);
  background: linear-gradient(135deg, var(--accent), #818cf8);
  border-radius: 20px;
  animation: badge-pulse 2s ease-in-out infinite;
}

@keyframes badge-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.subtitle {
  margin: 4px 0 12px;
  color: var(--text-muted);
  font-size: 0.82rem;
  letter-spacing: 0.3px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color 0.3s, transform 0.2s;
}

.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.stat-health .value { color: var(--success); }
.stat-score .value  { color: var(--accent); }
.stat-high .value   { color: var(--gold); }

.label {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.value {
  display: block;
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  font-weight: 800;
  line-height: 1.1;
}

/* ── Health Bar ── */
.health-bar-wrap {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  margin: 4px 0 2px;
  overflow: hidden;
}

.health-bar {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--danger), var(--success));
  border-radius: 3px;
  transition: width 0.3s ease-out;
}

.health-value {
  font-size: clamp(0.9rem, 2vw, 1.1rem) !important;
}

/* ── Game Arena ── */
.arena-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--surface-border);
  box-shadow:
    0 0 60px rgba(167, 139, 250, 0.06),
    0 8px 32px rgba(0, 0, 0, 0.45);
}

.arena-wrap.shake {
  animation: shake 0.35s ease-out;
}

@keyframes shake {
  0%  { transform: translate(0, 0); }
  15% { transform: translate(-4px, 2px); }
  30% { transform: translate(3px, -2px); }
  45% { transform: translate(-2px, 3px); }
  60% { transform: translate(2px, -1px); }
  75% { transform: translate(-1px, 1px); }
  100%{ transform: translate(0, 0); }
}

#game-canvas {
  width: 100%;
  height: auto;
  display: block;
  cursor: crosshair;
}

/* ── Overlays (Start / Game Over) ── */
.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 10px;
  text-align: center;
  padding: 24px;
  background: rgba(11, 10, 26, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10;
}

.start-title {
  font-size: clamp(1.8rem, 6vw, 2.8rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 4px;
  background: linear-gradient(135deg, #a78bfa, #818cf8, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.start-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 300px;
}

.legend {
  display: flex;
  gap: 20px;
  margin: 6px 0 4px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  transform: rotate(45deg);
}

.dot-green { background: var(--success); }
.dot-red { background: var(--danger); }

.overlay button {
  margin-top: 8px;
  border: none;
  border-radius: 10px;
  padding: 14px 36px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  background: linear-gradient(135deg, #a78bfa, #818cf8);
  color: #fff;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.overlay button:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 28px var(--accent-glow);
}

.overlay button:active {
  transform: translateY(0) scale(0.98);
}

.go-title {
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--danger);
}

.go-score {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.new-high {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold);
  animation: high-score-pop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes high-score-pop {
  0%   { transform: scale(0); opacity: 0; }
  60%  { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}

/* ── Combo Display ── */
.combo-display {
  position: absolute;
  top: 12px;
  right: 14px;
  z-index: 5;
  pointer-events: none;
}

.combo-text {
  font-size: 1.2rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gold);
  text-shadow: 0 0 16px rgba(251, 191, 36, 0.6);
  animation: combo-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes combo-in {
  0%   { transform: scale(0.5) translateY(8px); opacity: 0; }
  100% { transform: scale(1) translateY(0); opacity: 1; }
}

.hidden {
  display: none !important;
}

/* ── Footer ── */
.footer {
  margin-top: 14px;
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.footer a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

.footer a:hover {
  color: #c4b5fd;
  text-decoration: underline;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  body {
    padding: 12px 10px 30px;
  }
  .stats {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 6px;
  }
  .stat-card {
    padding: 8px 10px;
  }
  .arena-wrap {
    border-radius: 10px;
  }
  .legend {
    flex-direction: column;
    gap: 6px;
  }
}

@media (max-width: 400px) {
  .stats {
    grid-template-columns: 1fr;
  }
}