/* ============================================================
   Pulse Tetris – Teal Theme
   Mörk teal bakgrund, starka block-färger
   ============================================================ */

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  touch-action: none;
  font-family: 'Nunito', 'Segoe UI', system-ui, sans-serif;
}

/* Teal bakgrund */
body {
  background: linear-gradient(145deg, #1a3a3a 0%, #162f2f 100%);
}

/* Container fyller skärmen och centrerar canvas */
#gameContainer {
  position: fixed;
  inset: 0;

  display: flex;
  justify-content: center;
  align-items: center;

  touch-action: none;
}

/* Själva canvasen */
#gameCanvas {
  display: block;
  touch-action: none;
}

/* Touch unlock overlay / Start menu */
#touchBlocker {
  position: fixed;
  inset: 0;
  background: linear-gradient(145deg, #1a3a3a 0%, #162f2f 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  
  font-family: 'Nunito', 'Segoe UI', system-ui, sans-serif;
  color: #c8e6e3;
  
  z-index: 100;
  
  transition: opacity 0.4s ease;
  overflow: hidden;
}

#touchBlocker::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(69, 217, 200, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(69, 217, 200, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(69, 217, 200, 0.04) 0%, transparent 70%);
  animation: pulseGlow 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

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

.start-menu {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 20px;
  position: relative;
  z-index: 1;
}

.title {
  text-align: center;
  margin-bottom: 10px;
}

.logo-blocks {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 16px;
}

.logo-block {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  animation: logoFloat 3s ease-in-out infinite;
}

.logo-block.b1 {
  background: linear-gradient(135deg, #45d9c8 0%, #3bc4b4 100%);
  box-shadow: 0 0 20px rgba(69, 217, 200, 0.6);
  animation-delay: 0s;
}

.logo-block.b2 {
  background: linear-gradient(135deg, #a78bda 0%, #9577cc 100%);
  box-shadow: 0 0 20px rgba(167, 139, 218, 0.6);
  animation-delay: 0.15s;
}

.logo-block.b3 {
  background: linear-gradient(135deg, #f5a623 0%, #e09515 100%);
  box-shadow: 0 0 20px rgba(245, 166, 35, 0.6);
  animation-delay: 0.3s;
}

.logo-block.b4 {
  background: linear-gradient(135deg, #e85b6c 0%, #d44a5b 100%);
  box-shadow: 0 0 20px rgba(232, 91, 108, 0.6);
  animation-delay: 0.45s;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.title-pulse {
  font-size: clamp(32px, 8vw, 48px);
  font-weight: 700;
  color: #c8e6e3;
  text-shadow: 0 0 30px rgba(69, 217, 200, 0.5);
}

.title-tetris {
  font-size: clamp(18px, 5vw, 24px);
  font-weight: 500;
  color: #7ab5b0;
  text-transform: uppercase;
  letter-spacing: 4px;
}

/* Mode selection */
.mode-select {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 280px;
}

.mode-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 14px 18px;
  background: #0d2626;
  border: 2px solid #2d5a5a;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.mode-btn:hover {
  border-color: #3a8a8a;
}

.mode-btn.selected {
  border-color: #45d9c8;
  background: rgba(69, 217, 200, 0.15);
  box-shadow: 0 0 12px rgba(69, 217, 200, 0.2);
}

.mode-name {
  font-size: 16px;
  font-weight: 600;
  color: #c8e6e3;
}

.mode-desc {
  font-size: 12px;
  color: #7ab5b0;
}

/* Level picker */
.level-select {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.level-label {
  font-size: 14px;
  color: #7ab5b0;
}

.level-picker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 1.5em;
}

.level-btn {
  background: #0d2626;
  border: 2px solid #2d5a5a;
  color: #c8e6e3;
  width: 48px;
  height: 48px;
  font-size: 1em;
  cursor: pointer;
  border-radius: 12px;
  
  display: flex;
  align-items: center;
  justify-content: center;
  
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  transition: all 0.15s ease;
}

.level-btn:hover,
.level-btn:active {
  background: #1a4040;
  border-color: #45d9c8;
  transform: scale(1.05);
}

#startLevel {
  min-width: 50px;
  text-align: center;
  font-weight: 700;
  color: #45d9c8;
}

/* Start button */
.start-btn {
  padding: 16px 64px;
  font-size: 18px;
  font-family: inherit;
  font-weight: 700;
  background: #45d9c8;
  border: none;
  border-radius: 12px;
  color: #0d2626;
  cursor: pointer;
  margin-top: 10px;
  
  box-shadow: 0 4px 12px rgba(69, 217, 200, 0.3);
  transition: all 0.2s ease;
}

.start-btn:hover {
  background: #5de3d2;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(69, 217, 200, 0.4);
}

/* Keyboard hints */
kbd {
  display: inline-block;
  padding: 2px 6px;
  font-size: 0.75em;
  font-family: inherit;
  background: rgba(255,255,255,0.15);
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}

.keyboard-hints {
  font-size: 12px;
  color: #7ab5b0;
  margin-top: 10px;
}

/* Game Over overlay */
#gameOverlay {
  position: fixed;
  inset: 0;
  background: rgba(22, 47, 47, 0.97);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;
  
  font-family: 'Nunito', 'Segoe UI', system-ui, sans-serif;
  color: #c8e6e3;
  z-index: 50;
  
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

#gameOverlay.visible {
  opacity: 1;
  pointer-events: auto;
}

#gameOverlay h1 {
  font-size: clamp(28px, 7vw, 48px);
  font-weight: 700;
  color: #e85b6c;
  margin: 0;
}

#gameOverlay .final-score {
  font-size: clamp(18px, 4vw, 26px);
  color: #7ab5b0;
}

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 20px 0;
  padding: 16px;
  background: rgba(13, 38, 38, 0.5);
  border-radius: 12px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-size: clamp(18px, 4vw, 24px);
  font-weight: 700;
  color: #45d9c8;
}

.stat-label {
  font-size: clamp(10px, 2.5vw, 12px);
  color: #7ab5b0;
  text-transform: uppercase;
}

/* Stats details */
.stats-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
  padding: 0 10px;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  font-size: clamp(12px, 3vw, 14px);
  color: #7ab5b0;
}

.stat-row span:last-child {
  color: #c8e6e3;
  font-weight: 600;
}

.stat-row.highlight span:last-child {
  color: #f5d63d;
}

.stat-row.purple span:last-child {
  color: #a78bda;
}

.game-over-buttons {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}

#gameOverlay button {
  padding: 14px 32px;
  font-size: clamp(14px, 3.5vw, 18px);
  font-family: inherit;
  font-weight: 600;
  background: #0d2626;
  border: 2px solid #2d5a5a;
  border-radius: 12px;
  color: #7ab5b0;
  cursor: pointer;
  
  transition: all 0.15s ease;
  outline: none;
}

#gameOverlay button.selected {
  background: #45d9c8 !important;
  border-color: #45d9c8 !important;
  color: #0d2626 !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(69, 217, 200, 0.4);
}

#gameOverlay button.secondary {
  /* Samma som vanlig knapp */
}

/* Pause overlay */
#pauseOverlay {
  position: fixed;
  inset: 0;
  background: rgba(22, 47, 47, 0.95);
  display: flex;
  justify-content: center;
  align-items: center;
  
  z-index: 60;
  
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

#pauseOverlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.pause-menu {
  background: #0d2626;
  border-radius: 16px;
  padding: 32px 40px;
  min-width: 280px;
  
  display: flex;
  flex-direction: column;
  gap: 24px;
  
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.pause-menu h1 {
  font-size: 28px;
  font-weight: 700;
  color: #c8e6e3;
  margin: 0;
  text-align: center;
}

.options-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.option-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #7ab5b0;
  font-size: 16px;
}

.toggle-btn {
  padding: 8px 16px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  min-width: 60px;
  transition: all 0.15s ease;
}

.toggle-btn.on {
  background: #45d9c8;
  color: #0d2626;
}

.toggle-btn.off {
  background: #2d5a5a;
  color: #7ab5b0;
}

.pause-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.pause-buttons button {
  padding: 14px 24px;
  font-size: 16px;
  font-family: inherit;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pause-buttons button:first-child {
  background: #0d2626;
  border: 2px solid #2d5a5a;
  color: #7ab5b0;
}

.pause-buttons button:first-child:hover,
.pause-buttons button:first-child.selected {
  background: #45d9c8;
  border-color: #45d9c8;
  color: #0d2626;
  transform: translateY(-2px);
}

.pause-buttons button.secondary {
  background: #0d2626;
  border: 2px solid #2d5a5a;
  color: #7ab5b0;
}

.pause-buttons button.secondary:hover,
.pause-buttons button.secondary.selected {
  border-color: #45d9c8;
  color: #45d9c8;
  transform: translateY(-2px);
}

#gameOverlay.visible {
  opacity: 1;
  pointer-events: auto;
}

#gameOverlay h1 {
  font-size: clamp(28px, 7vw, 48px);
  font-weight: 700;
  color: #e8a0a0;
  margin: 0;
}

#gameOverlay .final-score {
  font-size: clamp(18px, 4vw, 26px);
  color: #8b7e6a;
}
/* ============================================================
   Leaderboard
   ============================================================ */

.leaderboard-btn {
  background: transparent;
  border: 2px solid #45d9c8;
  color: #45d9c8;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 8px;
}

.leaderboard-btn:hover {
  background: rgba(69, 217, 200, 0.1);
  transform: translateY(-2px);
}

.player-name-display {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #7ab5b0;
  margin-top: 16px;
}

.player-name-display span {
  color: #45d9c8;
  font-weight: 600;
}

.reroll-btn {
  background: transparent;
  border: 1px solid #2d5a5a;
  color: #7ab5b0;
  padding: 4px 8px;
  font-size: 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.reroll-btn:hover {
  border-color: #45d9c8;
  color: #45d9c8;
}

/* Leaderboard Overlay */
#leaderboardOverlay {
  position: fixed;
  inset: 0;
  background: rgba(22, 47, 47, 0.95);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

#leaderboardOverlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.leaderboard-container {
  background: #0d2626;
  border-radius: 16px;
  padding: 24px;
  min-width: 320px;
  max-width: 400px;
  width: 90%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  border: 2px solid #2d5a5a;
}

.leaderboard-container h1 {
  text-align: center;
  font-size: 24px;
  color: #c8e6e3;
  margin: 0 0 16px 0;
}

.leaderboard-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.lb-tab {
  flex: 1;
  padding: 10px 12px;
  background: transparent;
  border: 1px solid #2d5a5a;
  color: #7ab5b0;
  font-size: 13px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lb-tab:hover {
  border-color: #45d9c8;
  color: #45d9c8;
}

.lb-tab.active {
  background: #45d9c8;
  border-color: #45d9c8;
  color: #0d2626;
}

.leaderboard-list {
  flex: 1;
  overflow-y: auto;
  min-height: 200px;
  max-height: 400px;
}

.leaderboard-list .loading {
  text-align: center;
  color: #7ab5b0;
  padding: 40px;
}

.lb-entry {
  display: flex;
  align-items: center;
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 6px;
  background: rgba(45, 90, 90, 0.3);
  transition: background 0.2s ease;
}

.lb-entry:hover {
  background: rgba(45, 90, 90, 0.5);
}

.lb-entry.highlight {
  background: rgba(69, 217, 200, 0.15);
  border: 1px solid rgba(69, 217, 200, 0.3);
}

.lb-entry.top1 { background: linear-gradient(90deg, rgba(255, 215, 0, 0.2), transparent); }
.lb-entry.top2 { background: linear-gradient(90deg, rgba(192, 192, 192, 0.2), transparent); }
.lb-entry.top3 { background: linear-gradient(90deg, rgba(205, 127, 50, 0.2), transparent); }

.lb-rank {
  width: 32px;
  font-weight: 700;
  color: #7ab5b0;
  font-size: 14px;
}

.lb-rank.gold { color: #ffd700; }
.lb-rank.silver { color: #c0c0c0; }
.lb-rank.bronze { color: #cd7f32; }

.lb-name {
  flex: 1;
  color: #c8e6e3;
  font-weight: 500;
  font-size: 14px;
}

.lb-score {
  color: #45d9c8;
  font-weight: 700;
  font-size: 15px;
}

.lb-time {
  color: #f5a623;
  font-weight: 700;
  font-size: 15px;
}

.lb-empty {
  text-align: center;
  color: #7ab5b0;
  padding: 40px 20px;
  font-size: 14px;
}

.close-lb-btn {
  margin-top: 16px;
  padding: 12px 24px;
  background: #45d9c8;
  border: none;
  color: #0d2626;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.close-lb-btn:hover {
  background: #5de3d2;
  transform: translateY(-2px);
}

/* Leaderboard rank badge in game over */
.lb-result {
  text-align: center;
  margin: 12px 0;
  padding: 12px;
  background: rgba(69, 217, 200, 0.1);
  border-radius: 8px;
  border: 1px solid rgba(69, 217, 200, 0.3);
}

.lb-result .rank {
  font-size: 18px;
  color: #45d9c8;
  font-weight: 700;
}

.lb-result .name {
  font-size: 13px;
  color: #7ab5b0;
  margin-top: 4px;
}

/* ============================================================
   Landscape Warning Overlay
   ============================================================ */

#landscapeOverlay {
  display: none;
  position: fixed;
  inset: 0;
  background: #162f2f;
  z-index: 9999;
  justify-content: center;
  align-items: center;
}

.landscape-content {
  text-align: center;
  color: #c8e6e3;
  font-family: 'Nunito', sans-serif;
}

.rotate-icon {
  font-size: 64px;
  margin-bottom: 20px;
  animation: rotateHint 2s ease-in-out infinite;
}

@keyframes rotateHint {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-20deg); }
  75% { transform: rotate(20deg); }
}

.rotate-text {
  font-size: 24px;
  font-weight: 700;
  color: #45d9c8;
  margin-bottom: 10px;
}

.rotate-subtext {
  font-size: 14px;
  color: #7ab5b0;
}

/* Show landscape overlay only on mobile in landscape */
@media screen and (max-height: 500px) and (orientation: landscape) {
  #landscapeOverlay {
    display: flex;
  }
  
  #gameContainer {
    display: none;
  }
}