@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=Share+Tech+Mono&display=swap');

:root {
  --bg: #0a0a0f;
  --surface: #10101a;
  --border: #ff2d55;
  --glow: #ff2d55;
  --glow2: #00f5ff;
  --text: #e8e8f0;
  --muted: #555577;
  --accent: #ffe600;

  --c-I: #00f5ff;
  --c-O: #ffe600;
  --c-T: #cc00ff;
  --c-S: #00ff88;
  --c-Z: #ff2d55;
  --c-J: #0066ff;
  --c-L: #ff8800;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Press Start 2P', monospace;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

/* CRT scanlines */
.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.15) 2px,
    rgba(0,0,0,0.15) 4px
  );
  pointer-events: none;
  z-index: 100;
}

/* Noise overlay */
.noise {
  position: fixed;
  inset: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 99;
}

.wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 20px;
}

header {
  text-align: center;
}

.logo {
  font-size: 3.5rem;
  color: var(--border);
  text-shadow:
    0 0 10px var(--glow),
    0 0 30px var(--glow),
    0 0 60px var(--glow);
  letter-spacing: 0.3em;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { text-shadow: 0 0 10px var(--glow), 0 0 30px var(--glow), 0 0 60px var(--glow); }
  50% { text-shadow: 0 0 5px var(--glow), 0 0 15px var(--glow), 0 0 30px var(--glow); }
}

.tagline {
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.5em;
  margin-top: 6px;
  animation: blink 1.2s step-end infinite;
}

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

.game-container {
  display: flex;
  align-items: flex-start;
  gap: 24px;
}

/* Side panels */
.side-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 180px;
}

.stat-box {
  background: var(--surface);
  border: 1px solid var(--muted);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.stat-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  opacity: 0.5;
}

.stat-label {
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.stat-value {
  font-size: 1.1rem;
  color: var(--glow2);
  text-shadow: 0 0 8px var(--glow2);
  font-family: 'Share Tech Mono', monospace;
  letter-spacing: 0.1em;
}

#nextCanvas {
  display: block;
  width: 160px;
  height: 160px;
  margin-top: 4px;
}

.controls-hint {
  background: var(--surface);
  border: 1px solid var(--muted);
  padding: 10px;
  font-size: 0.52rem;
  color: var(--muted);
  line-height: 2.2;
  letter-spacing: 0.05em;
}

.combo-box {
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#combo-text {
  font-size: 0.8rem;
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent);
  text-align: center;
  animation: comboAnim 0.4s ease;
}

@keyframes comboAnim {
  0% { transform: scale(1.5); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* Board */
.board-wrapper {
  position: relative;
}

#gameCanvas {
  display: block;
  border: 2px solid var(--border);
  box-shadow:
    0 0 15px var(--glow),
    0 0 40px rgba(255,45,85,0.3),
    inset 0 0 30px rgba(0,0,0,0.5);
  background: #06060e;
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 6, 14, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  transition: opacity 0.3s;
}

.overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.overlay-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

#overlay-title {
  font-size: 2rem;
  color: var(--border);
  text-shadow: 0 0 20px var(--glow);
  animation: pulse 1.5s ease-in-out infinite;
}

#overlay-sub {
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  animation: blink 1s step-end infinite;
}

/* Responsive tweak */
@media (max-width: 600px) {
  .side-panel { width: 90px; }
  .logo { font-size: 1.6rem; }
  #gameCanvas { width: 210px; height: 420px; }
}

/* ─── Leaderboard button ─────────────────────────────────────────── */
.btn-lb {
  background: transparent;
  border: 1px solid var(--muted);
  color: var(--muted);
  font-family: 'Press Start 2P', monospace;
  font-size: 0.52rem;
  padding: 12px 8px;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: color 0.2s, border-color 0.2s, text-shadow 0.2s;
  width: 100%;
}
.btn-lb:hover {
  color: var(--accent);
  border-color: var(--accent);
  text-shadow: 0 0 8px var(--accent);
}

/* ─── Modals ─────────────────────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(6, 6, 14, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}
.modal.hidden { display: none; }

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal-box {
  background: var(--surface);
  border: 2px solid var(--border);
  box-shadow: 0 0 30px rgba(255,45,85,0.35), 0 0 80px rgba(255,45,85,0.1);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 360px;
  max-width: 500px;
  width: 90vw;
  position: relative;
  animation: slideUp 0.25s cubic-bezier(0.16,1,0.3,1);
}
.modal-box--wide { min-width: 440px; max-width: 620px; }

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.modal-title {
  font-size: 1.4rem;
  color: var(--border);
  text-shadow: 0 0 15px var(--glow);
  text-align: center;
  letter-spacing: 0.2em;
}

.modal-score-display {
  font-size: 0.8rem;
  color: var(--glow2);
  text-shadow: 0 0 8px var(--glow2);
  text-align: center;
  letter-spacing: 0.15em;
}

.modal-label {
  font-size: 0.6rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-align: center;
}

.name-input {
  background: #06060e;
  border: 1px solid var(--border);
  color: var(--glow2);
  font-family: 'Press Start 2P', monospace;
  font-size: 0.85rem;
  padding: 12px 14px;
  text-align: center;
  letter-spacing: 0.15em;
  outline: none;
  text-transform: uppercase;
  box-shadow: 0 0 10px rgba(255,45,85,0.2);
  transition: box-shadow 0.2s;
  width: 100%;
}
.name-input:focus {
  box-shadow: 0 0 15px rgba(255,45,85,0.5);
  border-color: var(--glow2);
}
.name-input::placeholder { color: var(--muted); }

.modal-buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.btn-primary, .btn-ghost {
  font-family: 'Press Start 2P', monospace;
  font-size: 0.6rem;
  padding: 12px 18px;
  cursor: pointer;
  letter-spacing: 0.1em;
  border: 1px solid;
  transition: all 0.15s;
}
.btn-primary {
  background: var(--border);
  border-color: var(--border);
  color: #fff;
  box-shadow: 0 0 12px rgba(255,45,85,0.4);
}
.btn-primary:hover {
  background: #ff4d6e;
  box-shadow: 0 0 20px rgba(255,45,85,0.7);
}
.btn-ghost {
  background: transparent;
  border-color: var(--muted);
  color: var(--muted);
}
.btn-ghost:hover { border-color: var(--text); color: var(--text); }

/* ─── Leaderboard list ───────────────────────────────────────────── */
.leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 420px;
  overflow-y: auto;
}
.leaderboard-list::-webkit-scrollbar { width: 4px; }
.leaderboard-list::-webkit-scrollbar-track { background: #06060e; }
.leaderboard-list::-webkit-scrollbar-thumb { background: var(--muted); }

.lb-loading {
  font-size: 0.6rem;
  color: var(--muted);
  text-align: center;
  padding: 20px;
  animation: blink 1s step-end infinite;
}

.lb-row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  background: rgba(255,255,255,0.02);
  border-left: 2px solid transparent;
  transition: background 0.15s;
  font-size: 0.55rem;
  letter-spacing: 0.05em;
}
.lb-row:hover { background: rgba(255,255,255,0.05); }
.lb-row.lb-row--highlight {
  border-left-color: var(--accent);
  background: rgba(255, 230, 0, 0.06);
}
.lb-row.lb-row--top1 { border-left-color: #ffd700; }
.lb-row.lb-row--top2 { border-left-color: #c0c0c0; }
.lb-row.lb-row--top3 { border-left-color: #cd7f32; }

.lb-rank {
  color: var(--muted);
  text-align: center;
  font-size: 0.55rem;
}
.lb-row--top1 .lb-rank { color: #ffd700; text-shadow: 0 0 6px #ffd700; }
.lb-row--top2 .lb-rank { color: #c0c0c0; }
.lb-row--top3 .lb-rank { color: #cd7f32; }

.lb-name {
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-transform: uppercase;
}

.lb-score {
  color: var(--glow2);
  text-shadow: 0 0 6px var(--glow2);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.7rem;
  white-space: nowrap;
}

.lb-meta {
  grid-column: 2 / 4;
  color: var(--muted);
  font-size: 0.45rem;
  margin-top: -3px;
  letter-spacing: 0.1em;
}

.lb-empty {
  font-size: 0.6rem;
  color: var(--muted);
  text-align: center;
  padding: 20px;
}

.lb-new-badge {
  font-size: 0.45rem;
  background: var(--accent);
  color: #000;
  padding: 2px 4px;
  margin-left: 6px;
  vertical-align: middle;
}

.lb-rank-announce {
  font-size: 0.7rem;
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent);
  text-align: center;
  letter-spacing: 0.1em;
}