/* Nonogram page. Builds on games.css (shell, kicker, crumb, button base) and the
   site palette: cream board on the ink canvas, ink for filled cells, the brand
   red for X marks and the catalogue's puzzle green as the accent — the same
   colours the games catalogue poster promised. */
.nonogram-page {
  --nono-cell: #faf2da;
  --nono-cell-hover: color-mix(in srgb, var(--clr-accent) 14%, #faf2da);
  --nono-cell-line: #c9bc98;
  --nono-cell-line-strong: #0b0d0a;
  --nono-fill: #0b0d0a;
  --nono-mark: var(--clr-red);
  --nono-hint-bg: var(--clr-dark);
  --nono-hint-text: var(--clr-cream);
  --nono-hint-active: color-mix(in srgb, var(--clr-accent) 55%, var(--clr-dark));
  --nono-accent: #3d7a4e;
  --nono-accent-text: #faf2da;
  --cell: clamp(28px, 7vw, 44px);
  --hint-w: clamp(72px, 18vw, 112px);
  --hint-h: clamp(76px, 16vw, 116px);
}

[data-theme="light"] .nonogram-page {
  --nono-cell: #fffaf0;
  --nono-cell-hover: color-mix(in srgb, var(--clr-accent) 14%, #fffaf0);
  --nono-cell-line: #cdbf9c;
  --nono-hint-bg: color-mix(in srgb, var(--clr-ink) 7%, var(--clr-cream-light));
  --nono-hint-text: var(--clr-ink);
  --nono-hint-active: color-mix(in srgb, var(--clr-accent) 24%, var(--clr-cream-light));
  --nono-accent: var(--clr-accent);
}

/* ── Heading ─────────────────────────────────────────────────────────────── */
.nono-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin: 18px 0 20px; padding-bottom: 18px; border-bottom: 2px solid var(--border); }
.nono-heading h1 { font-size: clamp(1.6rem, 3.3vw, 2.3rem); letter-spacing: -.045em; margin: 8px 0 0; }
.nono-heading-note { margin: 0; color: var(--text-secondary); font-size: .9rem; line-height: var(--leading-relaxed); text-align: right; }

/* ── Puzzle picker: bordered tabs, size under each title. The tabs wrap rather
   than scroll: a clipped row with no scrollbar read as cut off on phones. ── */
.nono-picker { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 18px; }
.nono-picker > .games-kicker { padding: 17px var(--content-inset) 0; }
.nono-picker > .games-kicker { flex: 0 0 auto; white-space: nowrap; }
.nono-picker-items { display: flex; flex-wrap: wrap; gap: 8px; min-width: 0; }
.games-shell .nono-tab { flex: 0 0 auto; display: flex; flex-direction: column; align-items: flex-start; gap: 3px; min-height: 0; padding: 9px 13px; background: var(--bg-surface); color: var(--text-secondary); font-size: .85rem; font-weight: 700; line-height: var(--leading-tight); white-space: nowrap; }
.games-shell .nono-tab small { font-size: .7rem; font-weight: 600; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.games-shell .nono-tab:hover { background: var(--bg-surface-hover); color: var(--text-primary); }
.games-shell .nono-tab.is-active { background: var(--nono-accent); border-color: var(--nono-accent); color: var(--nono-accent-text); }
.games-shell .nono-tab.is-active small { color: color-mix(in srgb, var(--nono-accent-text) 75%, transparent); }
.nono-tab-done::before { content: "✓ "; }

/* ── Layout ──────────────────────────────────────────────────────────────── */
.nono-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 18px; align-items: start; }
.nono-board-panel { min-width: 0; padding: 16px; border: 1px solid var(--border); background: var(--bg-surface); }
.nono-side { display: grid; gap: 14px; position: sticky; top: 52px; }
.nono-side > section { border: 1px solid var(--border); background: var(--bg-surface); padding: 18px; }
.nono-side h2 { font-size: 1.15rem; line-height: var(--leading-snug); margin: 8px 0 12px; }
.nono-side p { line-height: var(--leading-relaxed); }

/* ── Toolbar ─────────────────────────────────────────────────────────────── */
.nono-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px 18px; flex-wrap: wrap; margin-bottom: 14px; }
.nono-toolbar-title { display: flex; align-items: baseline; gap: 8px; min-width: 0; flex: 1 1 200px; }
.nono-toolbar-title strong { font-size: 1.05rem; letter-spacing: -.01em; }
.nono-toolbar-title span { color: var(--text-muted); font-size: .85rem; font-variant-numeric: tabular-nums; }
.nono-toolbar-actions { display: flex; align-items: center; gap: 10px; }
.nono-mode { display: flex; }
.games-shell .nono-mode-btn { display: flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 14px; background: var(--bg-canvas); color: var(--text-secondary); font-weight: 700; font-size: .85rem; }
.games-shell .nono-mode-btn + .nono-mode-btn { margin-left: -1px; }
.games-shell .nono-mode-btn.is-active { background: var(--nono-accent); border-color: var(--nono-accent); color: var(--nono-accent-text); position: relative; z-index: 1; }
.nono-swatch { display: inline-grid; place-items: center; width: 13px; height: 13px; border: 1px solid var(--nono-cell-line); background: var(--nono-cell); font-style: normal; }
.nono-swatch-fill { background: var(--nono-fill); border-color: #faf2da; }
.nono-mode-btn.is-active .nono-swatch-fill { border-color: var(--nono-accent-text); }
.nono-swatch-mark { color: var(--nono-mark); font-size: 11px; font-weight: 900; line-height: var(--leading-none); }
.nono-swatch-mark::before { content: "✕"; }
.games-shell .nono-reset { min-height: 40px; padding: 0 14px; color: var(--text-secondary); font-size: .85rem; font-weight: 700; }
.games-shell .nono-reset:hover { background: var(--bg-surface-hover); color: var(--text-primary); }

/* ── Board ───────────────────────────────────────────────────────────────── */
.nono-board-scroll { overflow-x: auto; scrollbar-width: thin; }
.nono-grid { display: grid; gap: 0; margin: 0 auto; border: 2px solid var(--nono-cell-line-strong); background: var(--nono-cell-line); }
.nono-grid .corner, .nono-grid .hint { display: flex; align-items: center; justify-content: center; background: var(--nono-hint-bg); color: var(--nono-hint-text); font-weight: 700; font-variant-numeric: tabular-nums; line-height: var(--leading-tight); border: 1px solid var(--nono-cell-line); transition: background .14s ease, color .14s ease, opacity .3s ease; }
.nono-grid .corner { width: var(--grid-hint-w); height: var(--grid-hint-h); }
.nono-grid .col-hint { width: var(--grid-cell); height: var(--grid-hint-h); padding: 6px 2px; flex-direction: column; justify-content: flex-end; gap: 1px; font-size: 14px; }
.nono-grid .row-hint { width: var(--grid-hint-w); height: var(--grid-cell); padding: 0 10px; justify-content: flex-end; gap: 7px; font-size: 15px; }
.nono-grid .hint span { flex: 0 0 auto; }
.nono-grid .hint.active { background: var(--nono-hint-active); color: #faf2da; }
.nono-grid .hint.satisfied { color: color-mix(in srgb, var(--nono-hint-text) 42%, var(--nono-hint-bg)); }
.nono-grid .hint.satisfied span { text-decoration: line-through; text-decoration-thickness: 1.5px; }

.games-shell .nono-grid .cell { appearance: none; -webkit-appearance: none; -webkit-tap-highlight-color: transparent; width: var(--grid-cell); height: var(--grid-cell); min-height: 0; padding: 0; border: 1px solid var(--nono-cell-line); background: var(--nono-cell); color: var(--nono-mark); display: grid; place-items: center; position: relative; touch-action: none; user-select: none; -webkit-user-select: none; transition: background .1s ease; }
.games-shell .nono-grid .cell.row-hover, .games-shell .nono-grid .cell.col-hover { background: var(--nono-cell-hover); }
.games-shell .nono-grid .cell.filled { background: var(--nono-fill); }
.games-shell .nono-grid .cell.filled.row-hover, .games-shell .nono-grid .cell.filled.col-hover { background: color-mix(in srgb, var(--nono-fill) 82%, var(--nono-accent)); }
.nono-grid .cell.marked::before, .nono-grid .cell.marked::after { content: ""; position: absolute; width: 54%; height: 2px; background: var(--nono-mark); }
.nono-grid .cell.marked::before { transform: rotate(45deg); }
.nono-grid .cell.marked::after { transform: rotate(-45deg); }
/* Every fifth line carries a heavier rule, the classic reading aid that lets
   the eye count blocks without counting cells. */
.nono-grid .c5 { border-left: 2px solid var(--nono-cell-line-strong); }
.nono-grid .r5 { border-top: 2px solid var(--nono-cell-line-strong); }
.games-shell .nono-grid .cell:focus-visible { outline: 2px solid var(--nono-mark); outline-offset: -2px; z-index: 1; }

/* Solved: the picture stays on the board in the puzzle green, X marks and hint
   numbers step back, and the board stops taking input. */
.is-solved .nono-grid .cell { pointer-events: none; transition: background .5s ease; }
.games-shell .is-solved .nono-grid .cell.filled { background: var(--nono-accent); }
.is-solved .nono-grid .cell.marked::before, .is-solved .nono-grid .cell.marked::after { opacity: 0; transition: opacity .4s ease; }
.is-solved .nono-grid .hint { color: color-mix(in srgb, var(--nono-hint-text) 35%, var(--nono-hint-bg)); }
.is-solved .nono-grid .hint span { text-decoration: none; }

.nono-guide { margin: 12px 0 0; color: var(--text-muted); font-size: .8rem; line-height: var(--leading-snug); }
.touch-guide { display: none; }

/* ── Side panel ──────────────────────────────────────────────────────────── */
.nono-status .games-kicker { color: var(--nono-accent); }
[data-theme="light"] .nono-status .games-kicker { color: var(--clr-accent); }
.nono-progress { margin: 12px 0 4px; }
.nono-progress-row { display: flex; justify-content: space-between; align-items: baseline; font-size: .82rem; color: var(--text-secondary); margin-top: 8px; }
.nono-progress-row strong { color: var(--text-primary); font-variant-numeric: tabular-nums; }
.nono-progress-track { height: 4px; background: var(--border); margin-top: 6px; overflow: hidden; }
.nono-progress-track i { display: block; height: 100%; width: 0; background: var(--nono-accent); transition: width .35s ease; }
.nono-side-note { margin: 14px 0 0; color: var(--text-muted); font-size: .82rem; }

.nono-solution { text-align: center; }
.nono-solution img { display: block; width: min(240px, 100%); margin: 0 auto; image-rendering: pixelated; border: 1px solid var(--border); background: #fff; }
.nono-solution h2 { margin: 14px 0 0; }
.nono-source { margin: 8px 0 0; color: var(--text-muted); font-size: .78rem; line-height: var(--leading-snug); }
.nono-source a { color: var(--link); font-weight: 700; }

.nono-question { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }
.nono-question:first-child { margin-top: 10px; padding-top: 0; border-top: 0; }
.nono-question p { margin: 0 0 10px; font-weight: 700; font-size: .92rem; }
.nono-answers { display: grid; gap: 6px; }
.games-shell .nono-answer { width: 100%; min-height: 40px; padding: 9px 12px; text-align: left; font-size: .88rem; font-weight: 600; }
.games-shell .nono-answer:hover:enabled { background: var(--bg-surface-hover); }
.games-shell .nono-answer.correct { background: var(--success-bg); border-color: var(--success-border); color: var(--success-text); }
.games-shell .nono-answer.wrong { background: var(--error-bg); border-color: var(--error-border); color: var(--error-text); }

.nono-side .nono-complete { border-color: var(--nono-accent); background: var(--success-bg); }
.nono-complete .games-kicker { color: var(--nono-accent); }
.nono-complete-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.games-shell .nono-complete-actions button { min-height: 40px; padding: 0 14px; font-size: .85rem; font-weight: 700; }
.games-shell .nono-primary { background: var(--nono-accent); border-color: var(--nono-accent); color: var(--nono-accent-text); }
.nono-share-text { margin: 12px 0 0; color: var(--text-muted); font-size: .78rem; word-break: break-all; }
.nono-share-text:empty { display: none; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 920px) {
  .nono-layout { grid-template-columns: 1fr; }
  .nono-side { position: static; }
  .nono-heading { flex-direction: column; align-items: flex-start; gap: 10px; }
  .nono-heading-note { text-align: left; }
}

@media (max-width: 560px) {
  .nonogram-page { --cell: min(8vw, 34px); --hint-w: 52px; --hint-h: 72px; }
  .nono-picker { flex-direction: column; align-items: stretch; gap: 8px; }
  .nono-board-panel { padding: 10px; }
  .nono-toolbar { gap: 10px; }
  .nono-toolbar-actions { width: 100%; }
  .nono-mode { flex: 1 1 auto; }
  .games-shell .nono-mode-btn { flex: 1 1 0; justify-content: center; padding: 0 8px; }
  .nono-grid .row-hint { font-size: 13px; gap: 4px; padding: 0 6px; }
  .nono-grid .col-hint { font-size: 12px; padding-top: 5px; padding-bottom: 5px; }
  .nono-side > section { padding: 14px; }
}

@media (hover: none), (pointer: coarse) {
  .touch-guide { display: block; }
  .mouse-guide { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .nono-grid .cell, .nono-grid .hint, .nono-progress-track i { transition: none; }
}

.nono-picker-items { display: grid; width: 100%; gap: 8px; }
.nono-level { border: 1px solid var(--border); padding: 0 12px; }
.nono-level summary { min-height: 44px; line-height: 44px; cursor: pointer; font-weight: 700; font-size: .85rem; }
.nono-level-items { display: flex; flex-wrap: wrap; gap: 8px; padding-bottom: 12px; }
.nono-tools { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.games-shell .nono-tools button { padding: 8px 10px; font-size: .8rem; }
.nono-feedback { font-size: .85rem; line-height: var(--leading-relaxed); color: var(--text-secondary); }
.nono-feedback:empty { display: none; }
.nono-question .nono-feedback { margin-top: 12px; font-weight: 400; }
.nono-question > a { font-size: .8rem; }
.nono-board-scroll { overflow: auto; max-height: 75dvh; overscroll-behavior: contain; }
.nono-grid .row-hint { position: sticky; left: 0; z-index: 2; }
.nono-grid .col-hint { position: sticky; top: 0; z-index: 2; }
.nono-grid .corner { position: sticky; left: 0; top: 0; z-index: 3; }
.games-shell .nono-mode-btn, .games-shell .nono-reset, .games-shell .nono-answer { min-height: 44px; }
@media (prefers-reduced-motion: reduce) {
  .is-solved .nono-grid .cell, .is-solved .nono-grid .cell.marked::before, .is-solved .nono-grid .cell.marked::after { transition: none; }
}