/* Game-specific tokens (shared tokens from design-tokens.css) */
:root {
  --canvas-bg: #0a0a0a;
  --canvas-grid: rgba(42, 42, 42, 0.35);
  --canvas-snake-r: 255;
  --canvas-snake-g: 45;
  --canvas-snake-b: 123;
  --canvas-food: #39ff14;
  --canvas-eye: #ffffff;
  --canvas-pupil: #0a0a0a;
}

[data-theme="light"] {
  --canvas-bg: #f0ede8;
  --canvas-grid: rgba(180, 175, 168, 0.35);
  --canvas-snake-r: 196;
  --canvas-snake-g: 30;
  --canvas-snake-b: 92;
  --canvas-food: #1a8f0a;
  --canvas-eye: #ffffff;
  --canvas-pupil: #2a2a2a;
}


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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

#app {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 16px;
  position: relative;
}

/* ===== Landing View ===== */
.landing {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 24px;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.landing__title {
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  user-select: none;
}

.landing__high-score {
  font-size: 1rem;
  color: var(--text-secondary);
}

.landing__high-score span {
  color: var(--color-warning);
  font-weight: 700;
}

.landing__start-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 40px;
  font-size: 1.1rem;
  font-weight: 700;
  font-family: inherit;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.05em;
}

.landing__start-btn:hover {
  transform: translateY(-2px);
  background: var(--color-accent-hover);
}

.landing__start-btn:active {
  transform: translateY(0);
}

.landing__hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.landing__hint kbd {
  display: inline-block;
  padding: 2px 7px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ===== Game View ===== */
.game {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 560px;
  animation: fadeIn 0.3s ease;
}

/* Score bar */
.game__hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.game__score-label,
.game__high-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.game__score-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  min-width: 50px;
}

.game__high-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 50px;
  text-align: right;
}

.game__score-group,
.game__high-group {
  display: flex;
  flex-direction: column;
}

.game__high-group {
  align-items: flex-end;
}

.game__pause-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.game__pause-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Canvas */
.game__canvas-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-primary);
}

.game__canvas {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}

/* Overlay (pause + game over) */
.game__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(15, 15, 35, 0.88);
  backdrop-filter: blur(4px);
  z-index: 10;
  animation: fadeIn 0.25s ease;
}

.game__overlay--hidden {
  display: none;
}

.game__overlay-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.game__overlay-title--over {
  color: var(--color-accent);
}

.game__overlay-score {
  font-size: 1.2rem;
  color: var(--text-primary);
}

.game__overlay-score span {
  font-weight: 700;
  color: var(--color-primary);
}

.game__overlay-high {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.game__overlay-high span {
  font-weight: 700;
  color: var(--color-warning);
}

.game__overlay-new {
  display: inline-block;
  padding: 2px 8px;
  margin-left: 6px;
  background: var(--color-accent);
  border-radius: var(--radius);
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.game__overlay-rank {
  display: flex;
  align-items: baseline;
  gap: 6px;
  animation: rankReveal 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes rankReveal {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.game__overlay-rank-pos {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-primary);
}

.game__overlay-rank-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.game__overlay-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.game__overlay-btn {
  padding: 12px 32px;
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.04em;
}

.game__overlay-btn:hover {
  transform: translateY(-2px);
  background: var(--color-accent-hover);
}

/* ===== D-Pad (touch devices) ===== */
.dpad {
  display: none;
  width: 160px;
  height: 160px;
  position: relative;
  margin-top: 8px;
  flex-shrink: 0;
}

.dpad--visible {
  display: block;
}

.dpad__btn {
  position: absolute;
  width: 52px;
  height: 52px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.dpad__btn:active {
  background: var(--bg-tertiary);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: scale(0.92);
}

.dpad__btn--up    { top: 0;    left: 50%;  transform: translateX(-50%); }
.dpad__btn--down  { bottom: 0; left: 50%;  transform: translateX(-50%); }
.dpad__btn--left  { left: 0;   top: 50%;   transform: translateY(-50%); }
.dpad__btn--right { right: 0;  top: 50%;   transform: translateY(-50%); }

.dpad__btn--up:active    { transform: translateX(-50%) scale(0.92); }
.dpad__btn--down:active  { transform: translateX(-50%) scale(0.92); }
.dpad__btn--left:active  { transform: translateY(-50%) scale(0.92); }
.dpad__btn--right:active { transform: translateY(-50%) scale(0.92); }

/* ===== Screen flash on game over ===== */
.flash {
  position: fixed;
  inset: 0;
  background: rgba(233, 69, 96, 0.2);
  pointer-events: none;
  z-index: 100;
  animation: flashAnim 0.4s ease-out forwards;
}

@keyframes flashAnim {
  0% { opacity: 1; }
  100% { opacity: 0; }
}

/* ===== Score pop ===== */
.score-pop {
  position: absolute;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--color-primary);
  pointer-events: none;
  z-index: 20;
  animation: scorePop 0.8s ease-out forwards;
}

@keyframes scorePop {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-40px) scale(1.2);
  }
}

/* ===== Light Mode Element Overrides ===== */
[data-theme="light"] .game__overlay {
  background: rgba(245, 245, 248, 0.90);
  backdrop-filter: blur(4px);
}

[data-theme="light"] .game__canvas-wrap {
  border-color: var(--border-color);
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .landing__title {
    font-size: 2.8rem;
  }

  .game__canvas-wrap {
    border-radius: 6px;
  }

  .game__hud {
    padding: 8px 12px;
  }

  .game__score-value {
    font-size: 1.2rem;
  }

  .game__overlay-title {
    font-size: 1.6rem;
  }
}

@media (max-height: 700px) {
  #app {
    padding-top: 48px;
  }
}