/* ============================================
   MONSTER SMASH - Global Styles
   Aesthetic: Stadium lights + chrome + dirt + fire
   ============================================ */

:root {
  /* Core palette - monster truck rally energy */
  --bg-abyss: #0a0a0f;
  --bg-dark: #111118;
  --bg-surface: #1a1a24;
  --bg-elevated: #242430;

  /* Fire spectrum */
  --fire-red: #ff2d2d;
  --fire-orange: #ff6b1a;
  --fire-yellow: #ffd21a;
  --fire-white: #fff8e0;

  /* Chrome & metal */
  --chrome: #c8cad0;
  --chrome-bright: #e8eaef;
  --chrome-dark: #6a6c74;
  --steel: #3a3c44;

  /* Neon accents */
  --neon-green: #39ff14;
  --neon-blue: #00d4ff;
  --neon-pink: #ff2d8a;
  --neon-purple: #b44aff;

  /* Rarity colors */
  --rarity-common: #8a8d96;
  --rarity-rare: #4488ff;
  --rarity-epic: #b44aff;
  --rarity-legendary: #ffaa00;

  /* Dirt & ground */
  --dirt: #5c3d1a;
  --dirt-light: #8b6538;
  --mud: #3d2810;

  /* Typography */
  --font-display: 'Bungee Shade', 'Impact', sans-serif;
  --font-heading: 'Bangers', 'Impact', sans-serif;
  --font-body: 'Russo One', 'Arial Black', sans-serif;
  --font-accent: 'Permanent Marker', cursive;

  /* Sizing */
  --touch-min: 44px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Shadows */
  --shadow-glow: 0 0 30px rgba(255, 107, 26, 0.3);
  --shadow-fire: 0 0 40px rgba(255, 45, 45, 0.4), 0 0 80px rgba(255, 107, 26, 0.2);
  --shadow-neon: 0 0 20px rgba(57, 255, 20, 0.3);
  --shadow-deep: 0 8px 32px rgba(0, 0, 0, 0.6);
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg-abyss);
  color: var(--chrome-bright);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

/* ---- Game Container ---- */
#game {
  position: fixed;
  inset: 0;
  overflow: hidden;
  background: var(--bg-abyss);
}

/* ---- Screen base ---- */
.screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.screen.active {
  opacity: 1;
  pointer-events: auto;
}

/* ---- Landscape-only rotation overlay ---- */
#rotate-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-abyss);
  align-items: center;
  justify-content: center;
}

@media (orientation: portrait) {
  #rotate-overlay {
    display: flex;
  }
  #game {
    display: none;
  }
}

.rotate-content {
  text-align: center;
  color: var(--fire-orange);
  font-family: var(--font-heading);
}

.rotate-truck {
  font-size: 80px;
  animation: rotateWobble 2s ease-in-out infinite;
}

.rotate-content p {
  font-size: 28px;
  letter-spacing: 3px;
  margin: 20px 0;
  text-shadow: 0 0 20px var(--fire-orange);
}

.rotate-arrow {
  font-size: 48px;
  animation: spin 2s linear infinite;
}

@keyframes rotateWobble {
  0%, 100% { transform: rotate(-10deg); }
  50% { transform: rotate(10deg); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ---- Stadium background (used by multiple screens) ---- */
.stadium-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background:
    /* Spotlight cones from above */
    radial-gradient(ellipse 300px 600px at 20% -10%, rgba(255, 210, 26, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 300px 600px at 50% -10%, rgba(255, 255, 255, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 300px 600px at 80% -10%, rgba(255, 210, 26, 0.08) 0%, transparent 70%),
    /* Ambient glow from below (dirt/arena) */
    radial-gradient(ellipse 100% 40% at 50% 110%, rgba(92, 61, 26, 0.3) 0%, transparent 70%),
    /* Base dark */
    var(--bg-abyss);
}

/* Animated dust particles - pure CSS */
.stadium-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255, 210, 26, 0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 60%, rgba(255, 107, 26, 0.4) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 55% 15%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 45%, rgba(255, 210, 26, 0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 85% 75%, rgba(255, 107, 26, 0.4) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 15% 80%, rgba(255, 255, 255, 0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 45% 40%, rgba(255, 210, 26, 0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 90% 25%, rgba(255, 45, 45, 0.3) 0%, transparent 100%);
  animation: dustFloat 20s linear infinite;
}

@keyframes dustFloat {
  0% { transform: translateY(0) translateX(0); }
  25% { transform: translateY(-10px) translateX(5px); }
  50% { transform: translateY(-5px) translateX(-3px); }
  75% { transform: translateY(-15px) translateX(8px); }
  100% { transform: translateY(0) translateX(0); }
}

/* Dirt ground strip */
.ground-strip {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 15%;
  background:
    linear-gradient(0deg,
      var(--mud) 0%,
      var(--dirt) 40%,
      var(--dirt-light) 70%,
      transparent 100%
    );
}

.ground-strip::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--fire-orange) 20%,
    var(--fire-yellow) 50%,
    var(--fire-orange) 80%,
    transparent 100%
  );
  opacity: 0.6;
}

/* ---- Buttons ---- */
.btn {
  font-family: var(--font-heading);
  font-size: 24px;
  letter-spacing: 2px;
  padding: 16px 48px;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  touch-action: manipulation;
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  position: relative;
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:active {
  transform: scale(0.95);
}

.btn-fire {
  background: linear-gradient(135deg, var(--fire-red) 0%, var(--fire-orange) 50%, var(--fire-yellow) 100%);
  color: #fff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  box-shadow:
    var(--shadow-fire),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-fire:active {
  box-shadow:
    0 0 20px rgba(255, 45, 45, 0.6),
    0 0 60px rgba(255, 107, 26, 0.3),
    inset 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Chrome shimmer on buttons */
.btn-fire::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 40%,
    rgba(255, 255, 255, 0.15) 45%,
    rgba(255, 255, 255, 0.25) 50%,
    rgba(255, 255, 255, 0.15) 55%,
    transparent 60%
  );
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%) rotate(45deg); }
  100% { transform: translateX(100%) rotate(45deg); }
}

.btn-chrome {
  background: linear-gradient(180deg, var(--chrome-bright) 0%, var(--chrome) 40%, var(--chrome-dark) 100%);
  color: var(--bg-dark);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    inset 0 -1px 0 rgba(0, 0, 0, 0.2);
}

/* ---- Utility classes ---- */
.text-fire {
  background: linear-gradient(135deg, var(--fire-red), var(--fire-orange), var(--fire-yellow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-chrome {
  background: linear-gradient(180deg, #fff 0%, var(--chrome) 50%, var(--chrome-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-glow {
  text-shadow:
    0 0 10px currentColor,
    0 0 20px currentColor,
    0 0 40px currentColor;
}

/* ---- Canvas (for battle screens) ---- */
canvas.battle-canvas {
  display: block;
  touch-action: none;
}

/* ---- Scrollable areas ---- */
.scroll-area {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--steel) var(--bg-dark);
}

.scroll-area::-webkit-scrollbar {
  width: 6px;
}

.scroll-area::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

.scroll-area::-webkit-scrollbar-thumb {
  background: var(--steel);
  border-radius: 3px;
}