/* Nonograms — picross style puzzle game */

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.page-head h1 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 700;
  font-size: clamp(28px, 4.4vw, 40px);
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.05;
}
.page-head .sub {
  color: var(--ink-soft);
  margin: 6px 0 0;
  font-size: 14px;
  min-height: 1.4em;
}
.head-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.picker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 4px 6px 4px 12px;
  min-height: var(--tap);
  box-shadow: var(--shadow);
}
.picker-label {
  font: 600 12px 'Inter', sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.picker select {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 0;
  font: 600 14px 'Inter', sans-serif;
  color: var(--ink);
  padding: 8px 26px 8px 4px;
  cursor: pointer;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'><path d='M1 1 L6 7 L11 1' fill='none' stroke='%231c2a3a' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 6px center;
  background-size: 10px 8px;
  min-height: 36px;
}
.picker select:focus { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

.play {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.board-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  min-width: min-content;
}

/* The board uses CSS grid with two tracks: clue gutter + main grid.
   Layout is: [col-clues area in top-right] [row-clues left][grid right] */
.board {
  --cell: clamp(26px, 5vw, 34px);
  --clue: clamp(11px, 1.6vw, 14px);
  --gutter-r: calc(var(--cell) * 3.2);
  --gutter-c: calc(var(--cell) * 3.2);
  display: grid;
  grid-template-columns: var(--gutter-r) auto;
  grid-template-rows: var(--gutter-c) auto;
  background: var(--paper);
  border-radius: 10px;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

/* Top-left empty corner */
.board .corner {
  grid-column: 1;
  grid-row: 1;
}

/* Column clues area (top-right) */
.col-clues {
  grid-column: 2;
  grid-row: 1;
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--cell));
  align-items: end;
}
.col-clues .clue {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 4px 0 4px;
  font: 600 var(--clue) 'Inter', sans-serif;
  color: var(--ink-soft);
  gap: 2px;
  line-height: 1.05;
  min-height: var(--cell);
}
.col-clues .clue.is-empty { color: var(--muted); opacity: 0.55; }
.col-clues .clue.is-solved span { text-decoration: line-through; color: var(--muted); opacity: 0.55; }

/* Row clues area (left) */
.row-clues {
  grid-column: 1;
  grid-row: 2;
  display: grid;
  grid-template-rows: repeat(var(--rows), var(--cell));
}
.row-clues .clue {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  padding-right: 8px;
  font: 600 var(--clue) 'Inter', sans-serif;
  color: var(--ink-soft);
  line-height: 1;
  min-width: 0;
}
.row-clues .clue span { padding: 0 1px; }
.row-clues .clue.is-empty { color: var(--muted); opacity: 0.55; }
.row-clues .clue.is-solved span { text-decoration: line-through; color: var(--muted); opacity: 0.55; }

/* The cells grid */
.grid {
  grid-column: 2;
  grid-row: 2;
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--cell));
  grid-template-rows: repeat(var(--rows), var(--cell));
  background: #c9bb98;
  gap: 1px;
  padding: 1px;
  border-radius: 4px;
  box-shadow: inset 0 0 0 1px #b8a878;
}

.cell {
  width: var(--cell);
  height: var(--cell);
  background: var(--paper);
  border: 0;
  padding: 0;
  margin: 0;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font: 700 calc(var(--cell) * 0.55) 'Inter', sans-serif;
  color: var(--ink-soft);
  -webkit-tap-highlight-color: transparent;
  transition: background 80ms ease;
}
.cell:hover { background: var(--accent-soft); }

/* Heavier divider lines every 5 cells */
.cell[data-thick-right="true"] { box-shadow: inset -1px 0 0 0 #6c5d3a; }
.cell[data-thick-bottom="true"] { box-shadow: inset 0 -1px 0 0 #6c5d3a; }
.cell[data-thick-right="true"][data-thick-bottom="true"] {
  box-shadow: inset -1px 0 0 0 #6c5d3a, inset 0 -1px 0 0 #6c5d3a;
}

.cell[data-state="filled"] {
  background: var(--ink);
}
.cell[data-state="filled"]:hover { background: var(--ink-soft); }

.cell[data-state="x"] {
  background: var(--paper);
  color: var(--danger);
}
.cell[data-state="x"]::before {
  content: "×";
  font-size: calc(var(--cell) * 0.85);
  line-height: 1;
  font-weight: 700;
}

.cell.is-wrong {
  animation: wrongFlash 1.2s ease-out;
}
@keyframes wrongFlash {
  0%, 60% { background: var(--danger); }
  100% { background: var(--ink); }
}

/* Cell fill/mark — quick in-place transform */
.cell {
  transition: background 120ms ease-out;
}
@keyframes ng-fill-in {
  0%   { transform: scale(0.5); }
  60%  { transform: scale(1.08); }
  100% { transform: scale(1); }
}
.cell[data-state="filled"], .cell[data-state="x"]::before {
  animation: ng-fill-in 160ms ease-out;
}

/* Row/column solve celebration */
@keyframes ng-line-solved {
  0%   { background: rgba(213, 192, 125, 0.5); }
  100% { background: transparent; }
}
.cells-col-line.is-just-solved .cell, .cells-row-line.is-just-solved .cell {
  animation: ng-line-solved 800ms ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .cell, .cell[data-state="filled"], .cell[data-state="x"]::before { animation: none; transition: none; }
}

.meta-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}
.meta-pill {
  font: 600 12px 'Inter', sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
}
.meta-pill.meta-timer {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}
.meta-pill[data-tone="easy"] { background: #e2eedf; color: #2e5a3f; border-color: #c2dbc1; }
.meta-pill[data-tone="medium"] { background: #ecdfba; color: #6e4f17; border-color: #d9c890; }
.meta-pill[data-tone="hard"] { background: #ebcdc6; color: #84321f; border-color: #d7a89c; }

/* board-wrap difficulty hooks reserved for future styling */

/* Win overlay (matches Solitaire pattern) */
.win-overlay {
  position: fixed; inset: 0; background: rgba(28, 42, 58, 0.55);
  display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px;
}
.win-overlay[hidden] { display: none; }
.win-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 30px; text-align: center; box-shadow: var(--shadow-lift); max-width: 380px;
  width: 100%;
}
.win-card h2 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 700;
  font-size: 28px;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}
.win-sub { color: var(--ink-soft); margin: 0 0 14px; font-size: 14px; }
.win-time { color: var(--muted); margin: 14px 0 18px; font-size: 13px; font-variant-numeric: tabular-nums; }
.win-preview {
  display: inline-grid;
  gap: 1px;
  background: #c9bb98;
  padding: 2px;
  border-radius: 4px;
  margin: 4px auto;
}
.win-preview .pix {
  width: 12px;
  height: 12px;
  background: var(--paper);
}
.win-preview .pix.on { background: var(--ink); }
.win-actions { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }

/* Mobile tweaks */
@media (max-width: 760px) {
  .play { padding: 12px; }
  .board {
    --cell: clamp(16px, 6.6vw, 28px);
    --gutter-r: calc(var(--cell) * 2.8);
    --gutter-c: calc(var(--cell) * 2.8);
    --clue: clamp(10px, 2.6vw, 13px);
  }
  .row-clues .clue { padding-right: 5px; gap: 4px; }
  .head-actions { width: 100%; }
  .head-actions .btn,
  .head-actions .picker { flex: 1 1 auto; }
}

@media (max-width: 420px) {
  .board {
    --cell: clamp(14px, 7.4vw, 22px);
    --gutter-r: calc(var(--cell) * 2.6);
    --gutter-c: calc(var(--cell) * 2.6);
  }
}

/* Fullscreen mode */
body[data-fullscreen="true"] .play {
  padding: clamp(8px, 2vw, 24px);
}
body[data-fullscreen="true"] .board-wrap {
  width: 100%;
  max-width: 100%;
}
body[data-fullscreen="true"] .board {
  --cell: clamp(20px, min(5.2vw, 4.6vh), 48px);
}