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

html, body {
  width: 100%;
  min-height: 100%;
  background: #000;
  overflow-x: hidden;
  font-family: 'Courier New', 'Consolas', monospace;
}

/* ───────────────────────────────────────────────
   TETRIS
   ─────────────────────────────────────────────── */

.tetris-section {
  position: relative;
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  background: #000;
  padding: 4rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Star field */
.tetris-section::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.9), transparent 60%),
    radial-gradient(1px 1px at 70% 10%, rgba(255,255,255,0.7), transparent 60%),
    radial-gradient(1.5px 1.5px at 85% 65%, rgba(255,255,255,0.8), transparent 60%),
    radial-gradient(1px 1px at 35% 80%, rgba(255,255,255,0.6), transparent 60%),
    radial-gradient(1px 1px at 50% 50%, rgba(255,255,255,0.7), transparent 60%),
    radial-gradient(2px 2px at 10% 75%, rgba(255,255,255,0.75), transparent 60%),
    radial-gradient(1px 1px at 90% 25%, rgba(255,255,255,0.7), transparent 60%),
    radial-gradient(1px 1px at 60% 90%, rgba(255,255,255,0.65), transparent 60%),
    radial-gradient(1.5px 1.5px at 25% 55%, rgba(255,255,255,0.7), transparent 60%),
    radial-gradient(1px 1px at 80% 40%, rgba(255,255,255,0.6), transparent 60%),
    radial-gradient(ellipse at center, #050510 0%, #000 70%);
  background-repeat: no-repeat;
}

.tetris-section::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  width: 2px;
  height: 2px;
  background: transparent;
  box-shadow:
    100px 50px 0 0 rgba(255,255,255,0.7),
    220px 180px 0 0 rgba(255,255,255,0.5),
    340px 420px 0 0 rgba(255,255,255,0.8),
    480px 90px 0 0 rgba(255,255,255,0.6),
    540px 320px 0 0 rgba(255,255,255,0.7),
    690px 250px 0 0 rgba(255,255,255,0.5),
    820px 470px 0 0 rgba(255,255,255,0.8),
    920px 130px 0 0 rgba(255,255,255,0.6),
    1080px 360px 0 0 rgba(255,255,255,0.7),
    150px 600px 0 0 rgba(255,255,255,0.6),
    410px 700px 0 0 rgba(255,255,255,0.5),
    760px 640px 0 0 rgba(255,255,255,0.7),
    1010px 580px 0 0 rgba(255,255,255,0.6),
    1180px 720px 0 0 rgba(255,255,255,0.8);
}

.tetris-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

#tetris-canvas {
  display: block;
  background: #000;
  border: 2px solid #FFE81F;
  box-shadow:
    0 0 20px rgba(255, 232, 31, 0.25),
    0 0 60px rgba(255, 232, 31, 0.1),
    inset 0 0 30px rgba(255, 232, 31, 0.05);
  image-rendering: pixelated;
}

.tetris-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-width: 160px;
  color: #FFE81F;
  letter-spacing: 0.05em;
}

.tetris-title {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  color: #FFE81F;
  text-shadow:
    0 0 8px rgba(255, 232, 31, 0.9),
    0 0 24px rgba(255, 232, 31, 0.5),
    0 0 48px rgba(255, 232, 31, 0.25);
  line-height: 1.1;
  margin-bottom: 0.6rem;
}

.tetris-subtitle {
  font-size: 0.6rem;
  color: #aaa;
  letter-spacing: 0.1em;
  font-style: italic;
  text-shadow: none;
  display: inline-block;
  margin-top: 0.4rem;
  font-weight: 400;
}

.tetris-next-label,
.tetris-score-label,
.tetris-level-label,
.tetris-lines-label {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: #FFE81F;
  opacity: 0.85;
  margin-top: 0.4rem;
}

#next-canvas {
  display: block;
  background: #000;
  border: 1px solid rgba(255, 232, 31, 0.27);
  image-rendering: pixelated;
}

#tetris-score,
#tetris-level,
#tetris-lines {
  font-size: 1.6rem;
  font-weight: 700;
  color: #FFE81F;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 8px rgba(255, 232, 31, 0.5);
  line-height: 1;
}

#tetris-start {
  margin-top: 0.8rem;
  padding: 0.7rem 1rem;
  background: #0a0a0a;
  color: #FFE81F;
  border: 1px solid #FFE81F;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  cursor: pointer;
  text-transform: uppercase;
  transition: background 120ms ease, box-shadow 120ms ease, color 120ms ease;
  box-shadow: 0 0 12px rgba(255, 232, 31, 0.2);
}

#tetris-start:hover,
#tetris-start:focus {
  background: #1a1a1a;
  color: #fff5a0;
  box-shadow: 0 0 22px rgba(255, 232, 31, 0.55);
  outline: none;
}

#tetris-start:active {
  background: #FFE81F;
  color: #000;
}

.tetris-controls {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: #888;
  line-height: 1.6;
  letter-spacing: 0.1em;
}

.tetris-controls > div {
  white-space: nowrap;
}

/* ───────────────────────────────────────────────
   SCOREBOARD
   ─────────────────────────────────────────────── */

.scoreboard-section {
  width: 100%;
  background: #000;
  padding: 3rem 1rem 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  border-top: 1px solid rgba(255, 232, 31, 0.15);
}

.scoreboard-title {
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: 0.4em;
  color: #FFE81F;
  text-shadow:
    0 0 8px rgba(255, 232, 31, 0.7),
    0 0 24px rgba(255, 232, 31, 0.3);
  margin-bottom: 1.5rem;
}

.scoreboard-list {
  list-style: none;
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.scoreboard-entry {
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid rgba(255, 232, 31, 0.12);
  background: rgba(255, 232, 31, 0.03);
  font-size: 0.9rem;
  color: #FFE81F;
  letter-spacing: 0.05em;
}

.scoreboard-entry:first-child {
  border-color: rgba(255, 232, 31, 0.45);
  background: rgba(255, 232, 31, 0.07);
}

.scoreboard-rank {
  opacity: 0.5;
  font-size: 0.75rem;
}

.scoreboard-score {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.scoreboard-meta {
  font-size: 0.7rem;
  opacity: 0.55;
  letter-spacing: 0.1em;
}

.scoreboard-empty {
  color: rgba(255, 232, 31, 0.35);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-align: center;
  padding: 1rem 0;
}

/* Responsive */
@media (max-width: 600px) {
  .tetris-section { padding: 2rem 0.5rem; }
  .tetris-wrapper { gap: 1rem; }
  .tetris-title { font-size: 1.4rem; letter-spacing: 0.2em; }
  #tetris-canvas { width: 240px; height: 480px; }
  .tetris-sidebar { min-width: 120px; }
}