/* ===== Boggle game styles ===== */

.app { max-width: min(95vw, 520px); }

/* Timer urgency */
.timer-box.urgent .score-value { color: #e74c3c; }
.timer-box.urgent { animation: pulse-border 1s ease-in-out infinite; }
@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 rgba(231, 76, 60, 0); }
  50%       { box-shadow: 0 0 0 4px rgba(231, 76, 60, 0.35); }
}

/* Word preview in toolbar */
.word-preview {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--text-strong);
  min-width: 120px;
  text-align: center;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1.5px solid var(--border);
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color .15s, background .15s;
}
.word-preview.building { border-color: #3498db; }
.word-preview.valid    { border-color: #27ae60; background: rgba(39,174,96,0.08); }
.word-preview.invalid  { border-color: #e74c3c; }

/* Message */
.message {
  text-align: center;
  min-height: 22px;
  font-size: 13px;
  font-weight: 700;
  margin: 6px 0;
  letter-spacing: 0.3px;
  transition: color .15s;
}
.message.ok   { color: #27ae60; }
.message.bad  { color: #e74c3c; }
.message.info { color: var(--text-muted); }

/* ===== Board ===== */
.boggle-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  width: min(90vw, 340px);
  padding: 14px;
  background: var(--board-bg, #bbada0);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

/* ===== Tiles ===== */
.boggle-tile {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(20px, 5.5vw, 28px);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--text-strong);
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  position: relative;
  transition: background .12s ease, border-color .12s ease, transform .1s ease, box-shadow .12s ease;
  box-shadow: var(--shadow-sm);
}

/* Sub-letter (for Qu) */
.boggle-tile .tile-sub {
  position: absolute;
  bottom: 3px;
  right: 5px;
  font-size: 9px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0;
}

/* Sequence number badge */
.boggle-tile .tile-seq {
  position: absolute;
  top: 2px;
  left: 4px;
  font-size: 9px;
  font-weight: 800;
  color: rgba(255,255,255,0.85);
  line-height: 1;
  display: none;
}
.boggle-tile.selected .tile-seq { display: block; }

/* Hover */
.boggle-tile:hover:not(.disabled) {
  background: var(--surface-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Selected (in current path) */
.boggle-tile.selected {
  background: linear-gradient(135deg, #3498db, #2980b9);
  border-color: #2471a3;
  color: #fff;
  transform: scale(1.08);
  box-shadow: 0 4px 14px rgba(52,152,219,0.5);
  z-index: 2;
}

/* Flash green — valid word submitted */
.boggle-tile.flash-valid {
  background: linear-gradient(135deg, #27ae60, #219150);
  border-color: #1d7a42;
  color: #fff;
  transform: scale(1.12);
  box-shadow: 0 4px 14px rgba(39,174,96,0.5);
  z-index: 3;
}

/* Flash red — invalid */
.boggle-tile.flash-invalid {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  border-color: #a93226;
  color: #fff;
  z-index: 3;
}

/* Already used this game (greyed slightly) */
.boggle-tile.used {
  opacity: 0.65;
}

/* Disabled (game over) */
.boggle-tile.disabled {
  cursor: default;
  opacity: 0.6;
}

/* ===== Found words section ===== */
.found-section {
  margin-top: 10px;
}

.found-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.found-words {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  min-height: 32px;
}

.found-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-strong);
  text-transform: uppercase;
  box-shadow: var(--shadow-sm);
  animation: chip-in .18s ease both;
}
@keyframes chip-in {
  from { transform: scale(0.7); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}
.found-chip .chip-pts {
  font-size: 10px;
  font-weight: 800;
  color: var(--accent);
  margin-left: 1px;
}

/* ===== End overlay ===== */
.end-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20,14,10,0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 120;
  padding: 20px;
  backdrop-filter: blur(3px);
  animation: fadein .3s ease;
}
.end-overlay[hidden] { display: none; }
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

.end-box {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  max-width: 480px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: pop-in .3s cubic-bezier(.5,-0.1,.3,1.3);
}
@keyframes pop-in {
  from { transform: translateY(20px) scale(0.95); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}

.end-title {
  font-size: 32px;
  font-weight: 900;
  color: var(--text-strong);
  text-align: center;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.end-stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 18px;
}
.end-stat {
  text-align: center;
}
.end-stat-val {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-strong);
}
.end-stat-lbl {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.end-section-title {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-muted);
  margin: 14px 0 6px;
}

.end-word-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.end-chip {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}
.end-found-list .end-chip {
  background: rgba(39,174,96,0.15);
  border: 1px solid rgba(39,174,96,0.4);
  color: #1d7a42;
}
body.dark .end-found-list .end-chip {
  color: #4ecb82;
  border-color: rgba(78,203,130,0.3);
  background: rgba(78,203,130,0.1);
}
.end-missed-list .end-chip {
  background: rgba(120,124,126,0.12);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.end-chip .chip-pts {
  font-size: 9px;
  font-weight: 800;
  opacity: 0.75;
}

/* btn-sm */
.btn-sm {
  padding: 4px 10px;
  min-height: 28px;
  font-size: 11px;
}

/* ===== SVG path overlay ===== */
#path-svg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}
.board-wrapper {
  position: relative;
}

@media (max-width: 400px) {
  .boggle-board { gap: 5px; padding: 10px; }
  .boggle-tile  { font-size: 18px; }
}

/* SitePause: hide letters while paused */
.boggle-board.site-paused { visibility: hidden; }