/* ============================================================
   PUZZLE PAGE STYLES
   Interactive crossword grid and clues
   ============================================================ */

/* --- PUZZLE HEADER --- */
.puzzle-header {
  background: var(--paper-warm);
  border-bottom: 1px solid var(--cream);
  padding: var(--space-lg) 0;
}

.puzzle-header .section-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.puzzle-meta h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: var(--space-xs);
}

.puzzle-date {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.puzzle-controls {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

/* Difficulty Selector */
.difficulty-selector {
  display: flex;
  gap: 2px;
  background: var(--cream);
  border-radius: 6px;
  padding: 2px;
}

.diff-btn {
  padding: 0.5rem 1rem;
  background: transparent;
  border: none;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s;
}

.diff-btn.active {
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.diff-btn:hover:not(.active) {
  color: var(--ink);
}

/* Timer */
.puzzle-timer {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent);
}

/* --- PUZZLE LAYOUT --- */
.puzzle-container {
  padding: var(--space-xl) 0;
}

.puzzle-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-xl);
  max-width: 1100px;
  margin: 0 auto;
}

/* --- CROSSWORD GRID --- */
.puzzle-grid-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.puzzle-grid {
  display: grid;
  grid-template-columns: repeat(15, 1fr);
  grid-template-rows: repeat(15, 1fr);
  gap: 0;
  max-width: 600px;
  aspect-ratio: 1;
  border: 3px solid var(--grid-border);
  background: var(--grid-border);
  user-select: none;
}

.puzzle-cell {
  background: var(--grid-light);
  border: 1px solid var(--grid-border);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.15s;
}

.puzzle-cell.black {
  background: var(--grid-dark);
  cursor: default;
}

.puzzle-cell.active {
  background: var(--grid-active);
  border-color: var(--accent);
  z-index: 2;
  box-shadow: 0 0 0 2px var(--accent);
}

.puzzle-cell.highlighted {
  background: #e8f4ff;
}

.puzzle-cell.error {
  background: #ffe8e8;
}

.puzzle-cell.correct {
  background: #e8ffe8;
}

/* Cell Number */
.cell-number {
  position: absolute;
  top: 2px;
  left: 2px;
  font-size: 0.65rem;
  line-height: 1;
  color: var(--ink-soft);
  font-weight: 500;
  pointer-events: none;
}

/* Cell Letter */
.cell-letter {
  font-family: var(--font-body);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--ink);
  text-transform: uppercase;
  pointer-events: none;
}

.puzzle-cell.pencil .cell-letter {
  color: #999;
  font-weight: 400;
}

/* Puzzle Actions */
.puzzle-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

.puzzle-actions .btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
}

/* --- CLUES PANEL --- */
.clues-panel {
  display: flex;
  flex-direction: column;
  background: var(--paper-warm);
  border: 1px solid var(--cream);
  border-radius: 8px;
  overflow: hidden;
  height: fit-content;
}

.clues-tabs {
  display: flex;
  border-bottom: 1px solid var(--cream);
}

.clue-tab {
  flex: 1;
  padding: var(--space-md);
  background: transparent;
  border: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.2s;
}

.clue-tab.active {
  background: var(--paper);
  color: var(--ink);
  border-bottom: 2px solid var(--accent);
  margin-bottom: -1px;
}

.clues-list-wrapper {
  position: relative;
  flex: 1;
  min-height: 400px;
  max-height: 500px;
  overflow-y: auto;
}

.clues-list {
  display: none;
  height: auto;
  min-height: 400px;
  padding: var(--space-md);
}

.clues-list.active {
  display: block;
}

.clue-item {
  padding: var(--space-sm) var(--space-md);
  margin-bottom: 2px;
  background: var(--paper);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  gap: var(--space-sm);
}

.clue-item:hover {
  background: var(--grid-active);
  transform: translateX(2px);
}

.clue-item.active {
  background: var(--accent);
  color: white;
}

.clue-number {
  font-weight: 700;
  min-width: 24px;
}

.clue-text {
  flex: 1;
  font-size: 0.9rem;
  line-height: 1.5;
}

/* --- COMPLETION MODAL --- */
.completion-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.3s;
}

.completion-modal[hidden] {
  display: none;
}

.modal-content {
  background: var(--paper);
  border-radius: 12px;
  padding: var(--space-xl);
  max-width: 400px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: slideUp 0.3s;
}

.modal-content h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: var(--space-lg);
  color: var(--accent);
}

.completion-stats {
  display: flex;
  justify-content: space-around;
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--paper-warm);
  border-radius: 8px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--ink);
}

.completion-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

/* --- TIPS SECTION --- */
.puzzle-tips {
  background: var(--paper-warm);
  border-top: 1px solid var(--cream);
  padding: var(--space-lg) 0;
}

.puzzle-tips h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.shortcut {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.shortcut kbd {
  background: var(--paper);
  border: 1px solid var(--cream);
  padding: 0.3em 0.8em;
  font-size: 0.85rem;
  min-width: 80px;
  text-align: center;
}

.shortcut span {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

/* --- YESTERDAY SOLUTION --- */
.yesterday-solution {
  padding: var(--space-lg) 0;
  text-align: center;
  background: var(--paper);
  border-top: 1px solid var(--cream);
}

.yesterday-solution h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
}

.yesterday-solution p {
  color: var(--ink-soft);
}

.text-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.text-link:hover {
  color: var(--accent-hover);
}

/* --- ANIMATIONS --- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* --- RESPONSIVE --- */
@media (max-width: 960px) {
  .puzzle-layout {
    grid-template-columns: 1fr;
  }

  .clues-panel {
    max-height: 400px;
  }

  .puzzle-grid {
    max-width: 500px;
    margin: 0 auto;
  }
}

@media (max-width: 680px) {
  .puzzle-header .section-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .puzzle-controls {
    width: 100%;
    justify-content: space-between;
  }

  .puzzle-grid {
    max-width: 100%;
  }

  .puzzle-actions {
    flex-wrap: wrap;
  }

  .puzzle-actions .btn {
    flex: 1 1 45%;
  }

  .shortcuts-grid {
    grid-template-columns: 1fr;
  }

  .completion-actions {
    flex-direction: column;
  }

  .cell-letter {
    font-size: 1.1rem;
  }
}