/*
 * PUZLI / mobile gameplay viewport
 * Use the visible dynamic viewport, not the document height. All six boards,
 * the feedback and the active controls stay in view on regular phones.
 * Game-specific artwork and actual puzzle geometry remain unchanged.
 */
@media (max-width:767px) {
  body.game-korony, body.game-duet, body.game-bloki,
  body.game-latarnie, body.game-zip, body.game-sudoku {
    height:100dvh;
    min-height:0;
    overflow:hidden;
    overscroll-behavior:none;
  }

  /* Korony — header + meta + 9x9 board + fixed actions + short feedback. */
  body.game-korony .app {
    height:100dvh;
    min-height:0;
    max-height:100dvh;
    overflow:hidden;
    padding:4px 10px 0;
  }
  body.game-korony .app .game-topbar {
    height:48px;
    min-height:48px;
  }
  body.game-korony .app .game-meta {
    height:50px;
    margin:3px 0 7px;
  }
  body.game-korony .app .game-layout {display:block}
  body.game-korony .app .board-column {
    display:flex;
    flex-direction:column;
    align-items:stretch;
  }
  body.game-korony .app .board {
    width:min(calc(100vw - 20px),calc(100dvh - 229px));
    max-width:100%;
    flex-shrink:0;
    margin:0 auto;
  }
  body.game-korony .app .feedback {
    width:100%;
    height:44px;
    max-height:44px;
    overflow:auto;
    overscroll-behavior:contain;
    margin:7px auto 0;
    padding:6px 9px;
    line-height:1.35;
    font-size:12px;
  }
  body.game-korony .app .hint-card,
  body.game-korony .app .bottom-actions,
  body.game-korony .app .controls {display:none!important}
  body.game-korony .app .game-tools {
    display:none;
    position:fixed;
    z-index:75;
    inset:56px 10px max(12px,env(safe-area-inset-bottom));
    max-width:none;
    margin:0;
    padding:12px 18px;
    border-radius:16px;
    overflow:auto;
    color:inherit;
    background:#281b36;
    border:1px solid #76537d;
    box-shadow:0 12px 45px rgba(0,0,0,.65);
  }
  body.game-korony .app .game-tools[open] {display:block}
  body.game-korony .app .mobile-controls {
    min-height:62px;
    height:calc(62px + env(safe-area-inset-bottom));
  }
  body.game-korony .app .mobile-controls button {gap:3px}
  body.game-korony .app .mobile-controls span {font-size:10px}

  /* The other four games share the same functional shell. */
  body.game-duet,body.game-bloki,body.game-latarnie,body.game-zip {
    --mobile-board-size:min(calc(100vw - 20px),calc(100dvh - 251px));
    --mobile-actions-height:62px;
  }
  body.game-bloki {
    /* Bloki also displays a compact, always-visible clue legend. */
    --mobile-board-size:min(calc(100vw - 20px),calc(100dvh - 298px));
  }
  body.game-duet .game-topbar,body.game-bloki .game-topbar,
  body.game-latarnie .game-topbar,body.game-zip .game-topbar {
    height:52px;
    min-height:52px;
    padding:0 10px;
  }
  body.game-duet .game-shell,body.game-bloki .game-shell,
  body.game-latarnie .game-shell,body.game-zip .game-shell {
    display:block;
    width:100%;
    height:calc(100dvh - 52px);
    max-height:calc(100dvh - 52px);
    padding:6px 10px 0;
    overflow:hidden;
  }
  body.game-duet .game-shell .play-area,body.game-bloki .game-shell .play-area,
  body.game-latarnie .game-shell .play-area,body.game-zip .game-shell .play-area {
    width:100%;
    min-width:0;
  }
  body.game-duet .game-shell .game-meta,body.game-bloki .game-shell .game-meta,
  body.game-latarnie .game-shell .game-meta,body.game-zip .game-shell .game-meta {
    height:51px;
    min-height:51px;
    margin:0 0 7px;
    gap:5px;
  }
  body.game-duet .game-shell .game-meta div,body.game-bloki .game-shell .game-meta div,
  body.game-latarnie .game-shell .game-meta div,body.game-zip .game-shell .game-meta div {
    padding:4px 8px;
  }
  body.game-duet .game-shell .game-meta span,body.game-bloki .game-shell .game-meta span,
  body.game-latarnie .game-shell .game-meta span,body.game-zip .game-shell .game-meta span {
    font-size:10px;
  }
  body.game-duet .game-shell .game-meta strong,body.game-bloki .game-shell .game-meta strong,
  body.game-latarnie .game-shell .game-meta strong,body.game-zip .game-shell .game-meta strong {
    font-size:15px;
  }
  body.game-duet .game-shell .board-wrap,body.game-bloki .game-shell .board-wrap,
  body.game-latarnie .game-shell .board-wrap,body.game-zip .game-shell .board-wrap {
    width:var(--mobile-board-size);
    max-width:100%;
    margin:0 auto;
    flex-shrink:0;
  }
  body.game-duet .game-shell .duet-board,body.game-bloki .game-shell .bloki-board,
  body.game-zip .game-shell .zip-board {width:100%}
  body.game-duet .game-shell .feedback,body.game-bloki .game-shell .feedback,
  body.game-latarnie .game-shell .feedback,body.game-zip .game-shell .feedback {
    box-sizing:border-box;
    min-height:44px;
    height:44px;
    max-height:44px;
    overflow:auto;
    overscroll-behavior:contain;
    margin:7px auto 0;
    padding:6px 9px;
    font-size:12px;
    line-height:1.32;
    display:flex;
    align-items:center;
    justify-content:center;
  }
  body.game-duet .game-shell .feedback.hint-feedback,
  body.game-latarnie .game-shell .feedback.hint-feedback,
  body.game-zip .game-shell .feedback.hint-feedback,
  body.game-korony .app .feedback.hint-feedback {
    border-left:3px solid #f2cb79;
    justify-content:flex-start;
  }
  body.game-duet .game-shell .side-panel,body.game-bloki .game-shell .side-panel,
  body.game-latarnie .game-shell .side-panel,body.game-zip .game-shell .side-panel {
    margin:0;
    height:0;
    overflow:visible;
  }
  body.game-duet .side-panel>.panel-card:first-child,
  body.game-bloki .side-panel>.panel-card:first-child,
  body.game-latarnie .side-panel>.panel-card:first-child,
  body.game-zip .side-panel>.panel-card:first-child,
  body.game-duet .side-panel .hint-card,
  body.game-latarnie .side-panel .hint-card,
  body.game-zip .side-panel .hint-card {display:none!important}

  /* Rules stay accessible as an overlay, without displacing the game. */
  body.game-duet .game-shell .side-panel details.rules,
  body.game-bloki .game-shell .side-panel details.rules,
  body.game-latarnie .game-shell .side-panel details.rules,
  body.game-zip .game-shell .side-panel details.rules {
    display:none;
    position:fixed;
    z-index:75;
    top:60px;
    left:10px;
    right:10px;
    max-height:calc(100dvh - 75px);
    overflow:auto;
    margin:0;
    padding:8px 12px 12px;
    background:var(--surface,#172635);
    border:1px solid #7c8994;
    border-radius:14px;
    box-shadow:0 16px 55px rgba(0,0,0,.65);
  }
  body.game-duet .game-shell .side-panel details.rules[open],
  body.game-bloki .game-shell .side-panel details.rules[open],
  body.game-latarnie .game-shell .side-panel details.rules[open],
  body.game-zip .game-shell .side-panel details.rules[open] {display:block}

  body.game-duet .mobile-controls,body.game-bloki .mobile-controls,
  body.game-latarnie .mobile-controls,body.game-zip .mobile-controls {
    height:calc(var(--mobile-actions-height) + env(safe-area-inset-bottom));
    min-height:0;
    padding-top:3px;
    padding-bottom:env(safe-area-inset-bottom);
  }
  body.game-duet .mobile-controls button,body.game-bloki .mobile-controls button,
  body.game-latarnie .mobile-controls button,body.game-zip .mobile-controls button {
    min-height:0;
    height:58px;
  }

  /* Bloki legend in one compact line, still available while playing. */
  body.game-bloki .game-shell .bloki-legend {
    height:43px;
    max-height:43px;
    margin:6px auto 0;
    padding:7px 8px;
    overflow:hidden;
  }
  body.game-bloki .game-shell .bloki-legend>strong,
  body.game-bloki .game-shell .bloki-legend>small {display:none}
  body.game-bloki .game-shell .legend-grid {
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:2px;
  }
  body.game-bloki .game-shell .legend-grid span {
    justify-content:center;
    padding:0;
    font-size:10px;
    gap:3px;
    white-space:nowrap;
  }

  /* Sudoku: 6 digits in a single row and a viewport-height-aware square. */
  body.game-sudoku .sudoku-header {
    flex:0 0 52px;
    height:52px;
    min-height:52px;
    padding:0 10px;
  }
  body.game-sudoku .sudoku-back,body.game-sudoku .sudoku-help{
    width:40px;
    height:40px;
  }
  body.game-sudoku .sudoku-shell {
    display:block;
    flex:1 1 auto;
    height:calc(100dvh - 52px);
    max-height:calc(100dvh - 52px);
    overflow:hidden;
    padding:6px 10px 0;
  }
  body.game-sudoku .sudoku-primary {
    display:flex;
    flex-direction:column;
    min-height:0;
    height:100%;
  }
  body.game-sudoku .sudoku-heading {
    flex:0 0 43px;
    min-height:43px;
    margin:0 0 5px;
    align-items:center;
  }
  body.game-sudoku .sudoku-heading p {font-size:12px;line-height:1.2;margin:3px 0 0}
  body.game-sudoku .sudoku-overline {font-size:9px}
  body.game-sudoku .sudoku-series {font-size:12px}
  body.game-sudoku .sudoku-meta {
    flex:0 0 50px;
    min-height:50px;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:5px;
    margin:0 0 6px;
  }
  body.game-sudoku .sudoku-meta div {padding:5px 8px;min-width:0}
  body.game-sudoku .sudoku-meta strong {font-size:16px;margin-top:1px}
  body.game-sudoku .sudoku-meta span {font-size:9px}
  body.game-sudoku .sudoku-board-wrap {
    flex:0 0 auto;
    width:min(calc(100vw - 20px),calc(100dvh - 315px));
    max-width:100%;
    margin:0 auto;
  }
  body.game-sudoku .sudoku-board {width:100%;aspect-ratio:1}
  body.game-sudoku button.sudoku-cell{
    font-size:clamp(20px,min(6vw,calc((100dvh - 315px)/12)),29px);
    font-weight:800;
  }
  body.game-sudoku .sudoku-feedback {
    flex:0 0 42px;
    min-height:42px;
    max-height:42px;
    overflow:auto;
    overscroll-behavior:contain;
    margin:7px 0 0;
    padding:6px 8px;
    font-size:12px;
    line-height:1.25;
  }
  body.game-sudoku .sudoku-tools {
    flex:0 0 46px;
    min-height:46px;
    height:46px;
    gap:5px;
    margin:6px 0 0;
  }
  body.game-sudoku .sudoku-tools button {
    min-height:46px;
    height:46px;
    flex-direction:row;
    gap:3px;
    padding:0 2px;
    font-size:11px;
  }
  body.game-sudoku .sudoku-tools button .tool-icon {font-size:19px}
  body.game-sudoku .sudoku-keypad {
    display:grid;
    flex:0 0 46px;
    min-height:46px;
    height:46px;
    grid-template-columns:repeat(6,minmax(0,1fr));
    gap:4px;
    margin:6px 0 0;
  }
  body.game-sudoku .sudoku-keypad button {
    height:46px;
    min-height:46px;
    font-size:30px;
    border-radius:8px;
    padding:0;
  }
  body.game-sudoku .sudoku-aside {display:none}
  body.game-sudoku .sudoku-aside.mobile-open {
    display:grid;
    position:fixed;
    z-index:75;
    inset:60px 10px max(12px,env(safe-area-inset-bottom));
    padding:14px;
    border-radius:16px;
    align-content:start;
    gap:12px;
    overflow:auto;
    background:#f3f3e9;
    border:1px solid #9abca6;
    box-shadow:0 15px 50px rgba(26,43,33,.5);
    margin:0;
  }
}

/* A rare extremely short viewport remains scrollable rather than clipping
   controls entirely. Ordinary phone heights remain one-screen experiences. */
@media (max-width:767px) and (max-height:520px) {
  body.game-korony,body.game-duet,body.game-bloki,
  body.game-latarnie,body.game-zip,body.game-sudoku {
    overflow-y:auto;
    height:auto;
    min-height:100dvh;
  }
  body.game-korony .app,body.game-duet .game-shell,body.game-bloki .game-shell,
  body.game-latarnie .game-shell,body.game-zip .game-shell,
  body.game-sudoku .sudoku-shell {
    height:auto;
    max-height:none;
    overflow:visible;
    padding-bottom:calc(75px + env(safe-area-inset-bottom));
  }
}

/*
 * Readable mobile hints: use the space above the fixed action bar.
 * Earlier releases forced 44px and made explanations unreadable.
 * The 9x9 and 6x6 boards shrink gently only while a hint is open,
 * not during regular play. Never scroll or shift the document.
 */
@media (max-width:767px) {
  body.game-korony:has(.feedback.hint-feedback) .app .board {
    width:min(calc(100vw - 20px),calc(100dvh - 360px));
  }
  body.game-duet:has(.feedback.hint-feedback),
  body.game-latarnie:has(.feedback.hint-feedback),
  body.game-zip:has(.feedback.hint-feedback) {
    --mobile-board-size:min(calc(100vw - 20px),calc(100dvh - 360px));
  }
  body.game-korony .app .feedback.hint-feedback,
  body.game-duet .game-shell .feedback.hint-feedback,
  body.game-latarnie .game-shell .feedback.hint-feedback,
  body.game-zip .game-shell .feedback.hint-feedback {
    display:block;
    box-sizing:border-box;
    width:100%;
    min-height:clamp(152px,26dvh,208px);
    height:clamp(152px,26dvh,208px);
    max-height:clamp(152px,26dvh,208px);
    margin:7px auto 0;
    padding:9px 12px 10px;
    overflow-y:auto;
    overflow-x:hidden;
    overscroll-behavior:contain;
    text-align:left;
    font-size:13px;
    line-height:1.35;
    word-break:normal;
    overflow-wrap:break-word;
    border-left:4px solid #f2cb79;
    border-radius:9px;
    scrollbar-width:thin;
  }
  .mobile-hint-title {
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:8px;
    margin:0 0 3px;
    font-size:13px;
    font-weight:850;
    letter-spacing:.035em;
    line-height:1.2;
    color:#f6d792;
  }
  .mobile-hint-copy {
    display:block;
    margin:4px 0 0;
    line-height:1.35;
    font-size:13px;
    font-weight:500;
  }
  .mobile-hint-action {
    padding-top:5px;
    border-top:1px solid rgba(244,211,139,.24);
  }
  .mobile-hint-action strong {
    font-weight:850;
  }
  button.mobile-hint-close {
    display:grid;
    place-items:center;
    min-width:29px;
    width:29px;
    height:27px;
    padding:0;
    background:transparent;
    border:1px solid currentColor;
    border-radius:7px;
    color:inherit;
    font:700 20px/1 inherit;
    cursor:pointer;
    touch-action:manipulation;
  }
  button.mobile-hint-close:focus-visible {
    outline:2px solid #f6d792;
    outline-offset:2px;
  }
  body.game-duet .mobile-hint-title {color:#116970}
  body.game-zip .mobile-hint-title {color:#d9ff94}
  body.game-latarnie .mobile-hint-title {color:#ffe3a3}
  body.game-korony .mobile-hint-title {color:#ffe2a7}
}

/*
 * iOS Safari: prevent unwanted double-tap page zoom while rapidly placing
 * digits or marking puzzle cells. This still allows native two-finger pinch
 * zoom for accessibility. Do not disable user-scalable in the viewport tag.
 * This stylesheet is loaded only by the six game pages.
 */
html,
body,
button,
a,
[role="gridcell"],
[role="button"] {
  touch-action: manipulation;
}