.mobile-game-picker, .mobile-control-hint, .mobile-action-slot { display: none; }
.blocks-canvas, .board-container { touch-action: pinch-zoom; }
.blocks-canvas, .board-container, .board, .blocks-controls, .game-controls {
  -webkit-user-select: none; user-select: none; -webkit-touch-callout: none;
}
.rules-list .touch-rule { display: none; }
.tile[data-touch-pressed='true'] {
  transform: scale(.95); outline: 2px solid #fff9; outline-offset: -3px;
}

/* Touch affordances also apply to tablets with a wide viewport. */
@media (any-pointer: coarse) {
  .quiet-button, .small-button, .sound-button, .game-help summary { min-width: 44px; min-height: 44px; }
  .direction-button, .blocks-controls button { min-width: 48px; min-height: 52px; }
  .rules-list .keyboard-rule { display: none; }
  .rules-list .touch-rule { display: inline-flex; }
  .blocks-control-hint, .control-hint, .keyboard-hint { display: none; }
  .mobile-control-hint { display: block; font-size: 11px; color: #acacac; text-align: center; }
  .blocks-controls, .game-controls { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
  .mobile-control-hint { flex-basis: 100%; margin: 8px 0 0; }
}
@media (hover: none) {
  .tile:enabled:hover { transform: none; }
  .tile[data-touch-pressed='true']:enabled { transform: scale(.95); }
}

@media (max-width: 760px), (max-width: 1000px) and (max-height: 500px) {
  html:has(body.play-page) { height: 100%; overflow: hidden; overscroll-behavior: none; }
  .shell, .page-shell {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  .header, .site-header {
    height: calc(48px + env(safe-area-inset-top));
    padding-top: env(safe-area-inset-top); gap: 8px;
  }
  .quiet-button, .small-button, .sound-button,
  .site-header .small-button { height: 44px; min-width: 44px; }
  .site-header .wordmark { display: block; font-size: 21px; }
  .play-page .shell, .play-page .page-shell {
    position: relative;
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
  }
  .play-page .brand, .play-page .site-header .wordmark { display: none; }
  .play-page .header, .play-page .site-header { justify-content: flex-end; }
  .sound-button { padding: 0; }.sound-button-label, .sound-indicator { display: none; }
  .header .header-actions, .site-header .header-actions { gap: 5px; position: relative; }
  .sound-control { position: static; }
  .sound-panel {
    right: 0; width: min(280px, calc(100vw - 32px));
    max-height: calc(100dvh - 100px - env(safe-area-inset-top)); overflow-y: auto;
    overscroll-behavior: contain;
  }
  button, summary, .game-card { -webkit-touch-callout: none; }
  .game-switcher {
    position: absolute; top: calc(2px + env(safe-area-inset-top));
    left: max(12px, env(safe-area-inset-left)); width: min(170px, calc(100% - 170px));
    padding: 0; overflow: visible; background: none; z-index: 21;
  }
  .game-switcher>a, .game-switcher>.switcher-label { display: none; }
  .mobile-game-picker { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 14px; }
  .mobile-game-picker-label { display: none; }
  .mobile-game-select {
    font: 400 16px var(--sans); color: #e2e2e2; background: #2a2a2a;
    border: 1px solid #dedede1a; border-radius: 12px; min-height: 44px;
    width: 100%; max-width: none; padding: 0 12px; cursor: pointer;
  }
  .mobile-game-select:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
  body.play-page {
    height: 100dvh; min-height: 0; overflow: hidden; overscroll-behavior: none;
    padding-bottom: calc(94px + env(safe-area-inset-bottom));
  }
  .play-page main { padding-top: 4px; }
  .play-layout, .game-layout {
    display: flex; flex-direction: column; align-items: stretch; gap: 6px;
    max-width: 480px; margin: 0 auto;
  }
  .game-intro, .intro {
    display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center;
    gap: 0 12px; min-width: 0;
  }
  .game-intro>.eyebrow, .intro>.eyebrow { display: none; }
  .game-intro h1, .intro h1 { font-size: 28px; line-height: 1.1; margin: 0; grid-column: 1; grid-row: 1; }
  .game-intro>p:not(.eyebrow), .intro-description {
    display: none;
  }
  .game-help { grid-column: 2; grid-row: 1; margin: 0; max-width: none; }
  .game-help summary { min-height: 44px; padding: 0 8px; gap: 10px; }
  .game-help[open] {
    position: fixed; top: calc(58px + env(safe-area-inset-top));
    left: max(12px, env(safe-area-inset-left)); right: max(12px, env(safe-area-inset-right));
    z-index: 50; width: auto; max-width: 560px; margin: 0 auto;
    max-height: calc(100dvh - 82px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
    padding: 0 18px 18px; overflow-y: auto; overscroll-behavior: contain;
    touch-action: pan-y pinch-zoom; background: #252525;
    border: 1px solid #ffffff1a; border-radius: 16px; box-shadow: 0 16px 56px #0009;
  }
  .game-help[open] summary {
    position: sticky; top: 0; z-index: 1; display: flex; justify-content: space-between;
    min-height: 48px; padding: 10px 0; background: #252525;
  }
  .game-help .rules-list { margin-top: 0; }
  .rules-list .keyboard-rule { display: none; }
  .rules-list .touch-rule { display: inline-flex; }
  .game-panel, .blocks-panel, .console {
    padding: 0; border: 0; border-radius: 0; background: none; box-shadow: none;
  }
  .stats-row { padding: 0; gap: 8px; border: 0; }
  .stats-row>div { display: flex; align-items: baseline; gap: 6px; min-width: 0; }
  .stat-label { font-size: 10px; line-height: 1.4; margin: 0; }
  .stat-value, .metric-number { font-size: 23px; line-height: 1.15; }
  .blocks-stage {
    --board-height: clamp(300px, calc(100svh - 236px - env(safe-area-inset-top) - env(safe-area-inset-bottom)), 600px);
    grid-template-columns: minmax(0, min(312px, calc(var(--board-height) / 2 + 12px))) 60px;
    justify-content: center; gap: 10px; margin-top: 6px;
  }
  .blocks-board-wrap { padding: 6px; }
  .blocks-canvas { width: 100%; }
  .next-piece { padding: 10px 4px; }.next-piece p { font-size: 10px; margin-bottom: 6px; }
  .blocks-side-note { font-size: 10px; line-height: 1.6; }
  .mobile-action-slot { display: block; margin-top: 16px; }
  .mobile-action-slot .solid-button { min-width: 0; width: 100%; min-height: 44px; padding: 0 5px; font-size: 12px; justify-content: center; }
  .mobile-action-slot .solid-button>span[aria-hidden] { display: none; }
  .blocks-panel .game-panel-bottom {
    display: block; position: absolute; width: 1px; height: 1px; min-height: 0;
    padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap;
  }
  .game-panel-bottom { margin-top: 6px; min-height: 44px; }
  .game-panel-bottom .solid-button { min-height: 44px; min-width: 94px; }
  .blocks-status, .game-status { font-size: 11px; }
  .board-container {
    width: 100%; margin: 6px auto 0; padding: 5px;
  }
  .merge-board { gap: 7px; }.merge-cell { font-size: 28px; }
  .blocks-overlay { padding: 10px; }
  .blocks-overlay h2 { font-size: 22px; margin: 10px 0; }
  .blocks-overlay p { font-size: 12px; line-height: 1.6; margin-bottom: 18px; }
  .blocks-overlay .solid-button { gap: 10px; min-width: 96px; }
  .game-controls, .blocks-controls, .game-layout .game-actions {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 15;
    display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 7px; margin: 0; max-width: none;
    padding: 8px max(12px, env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
    background: #1f1f1ff5; border-top: 1px solid #e1e1e114;
    box-shadow: 0 -10px 35px #15151528; backdrop-filter: blur(14px);
  }
  .blocks-controls { grid-template-columns: repeat(4, minmax(0, 1fr)) minmax(64px, 1.25fr); }
  .direction-button, .blocks-controls button, .blocks-controls .drop-button {
    min-width: 0; width: 100%; height: 48px; min-height: 48px;
    margin: 0; padding: 0; border-radius: 12px; font-size: 22px;
    touch-action: manipulation; user-select: none;
  }
  .blocks-controls .drop-button { font-size: 12px; color: #e4e4e4; background: #3d3d3d; }
  .blocks-controls [data-action='left'] { order: 1; }
  .blocks-controls [data-action='right'] { order: 2; }
  .blocks-controls [data-action='rotate'] { order: 3; }
  .blocks-controls [data-action='down'] { order: 4; }
  .blocks-controls [data-action='drop'] { order: 5; }
  .direction-button:active, .blocks-controls button:active, button[data-pressed='true'] {
    background: #4e4e4e!important; border-color: #d9d9d940!important; transform: translateY(1px);
  }
  .mobile-control-hint {
    display: block; grid-column: 1 / -1; order: 6; margin: 0;
    font-size: 10px; line-height: 1.5; text-align: center; color: #acacac;
  }
  .control-hint, .blocks-control-hint, .play-page footer, .game-footnote { display: none; }
  .game-layout .game-actions { display: flex; align-items: stretch; padding-top: 10px; padding-bottom: calc(10px + env(safe-area-inset-bottom)); }
  .game-layout .game-actions .primary-button { width: 100%; min-height: 50px; margin: 0; }
  .keyboard-hint { display: none; }
  .console-top { display: none; }
  .console-id { font-size: 10px; }.metrics { padding: 4px 0 8px; gap: 8px; }
  .metric, .metric:first-child { padding: 0; border: 0; display: flex; align-items: baseline; gap: 5px; min-width: 0; }
  .metric-label { font-size: 10px; margin: 0; }
  .metric .unit { font-size: 10px; margin-left: 3px; }
  .timer-track { margin-bottom: 6px; }
  .board-wrap { padding: 5px; width: 100%; margin: auto; }
  .board { gap: 6px; }.tile { border-radius: 6px; }
  .console-bottom { min-height: 30px; font-size: 11px; }.console-footnote { font-size: 11px; margin: 6px 2px 0; }
  .console-bottom #board-caption { max-width: 68%; }
  dialog { max-height: calc(100dvh - 32px - env(safe-area-inset-top) - env(safe-area-inset-bottom)); overflow-y: auto; overscroll-behavior: contain; }
  .dialog-top { position: sticky; top: -28px; background: #2c2c2c; padding-block: 6px; }

  /* Make all four choices reachable with less scrolling. */
  .home-page .welcome { padding: 27px 0 31px; }
  .home-page .welcome h1 { font-size: clamp(51px, 12vw, 66px); }
  .home-page .welcome h1 em { display: inline; }
  .home-page .welcome .eyebrow { margin-bottom: 14px; }
  .home-page .welcome-note { margin-top: 14px; }
  .home-page .card-art { height: 130px; padding-top: 30px; }
  .home-page .card-caption { padding: 12px 14px 16px; }
  .home-page .card-caption p { font-size: 11px; }
  .home-page .card-caption h3 { font-size: 21px; }
  .home-page .card-index { font-size: 10px; }
  .home-page .section-bar { margin-bottom: 14px; }
  .home-page .portal-main { padding-bottom: 24px; }
  .home-page footer { padding-bottom: calc(22px + env(safe-area-inset-bottom)); }
}

@media (max-width: 360px) {
  .play-page .shell, .play-page .page-shell {
    padding-left: max(10px, env(safe-area-inset-left));
    padding-right: max(10px, env(safe-area-inset-right));
  }
  .play-page .game-switcher { left: max(10px, env(safe-area-inset-left)); width: 140px; }
  .mobile-game-select { padding-inline: 8px; }
  .site-header .wordmark { font-size: 19px; }
  .site-header .small-button { padding-inline: 8px; }
  .home-page .card-caption h3 { font-size: 19px; }
  .home-page .card-caption { padding-inline: 12px; }
  .home-page .welcome h1 { font-size: 49px; }
  .home-page .card-art { height: 116px; }
  .game-controls, .blocks-controls { padding-inline: max(12px, env(safe-area-inset-left)); gap: 5px; }
  .blocks-controls { grid-template-columns: repeat(4, minmax(0, 1fr)) 62px; }
}

@media (max-width: 760px) and (max-height: 620px) and (orientation: portrait) {
  .stat-value, .game-layout .metric-number { font-size: 21px; }
  .game-layout .metric-label { font-size: 9px; }
}

@media (max-width: 1000px) and (max-height: 500px) and (orientation: landscape) {
  body.play-page { padding-bottom: 12px; }
  .play-page .shell, .play-page .page-shell { position: relative; }
  .play-page .header, .play-page .site-header { height: calc(52px + env(safe-area-inset-top)); }
  .play-page .brand, .play-page .site-header .wordmark { display: block; }
  .play-page .header, .play-page .site-header { justify-content: space-between; }
  .play-page .game-switcher { position: absolute; top: calc(4px + env(safe-area-inset-top)); left: calc(50% - 84px); width: 168px; padding: 0; z-index: 21; }
  .mobile-game-picker-label { display: none; }.mobile-game-select { max-width: none; width: 100%; min-height: 44px; }
  .play-page main { padding-top: 4px; }
  .play-layout, .game-layout { max-width: 800px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(210px, .9fr); align-items: start; gap: 24px; }
  .game-intro, .intro { grid-column: 2; grid-row: 1; margin-top: 12px; display: block; padding: 0 8px; }
  .play-column, .game-column { grid-column: 1; grid-row: 1; min-width: 0; }
  .game-help { margin-top: 6px; }.game-help .rules-list li { font-size: 11px; }
  .game-intro h1, .intro h1 { font-size: 38px; }
  .game-controls, .blocks-controls, .game-layout .game-actions {
    left: auto; right: max(16px, env(safe-area-inset-right)); bottom: max(12px, env(safe-area-inset-bottom));
    width: min(42vw, 370px); border: 1px solid #e1e1e114; border-radius: 16px;
    padding: 10px; backdrop-filter: none;
  }
  .blocks-controls { grid-template-columns: repeat(4, minmax(0, 1fr)) minmax(62px, 1.25fr); }
  .mobile-control-hint { font-size: 9px; }
  .game-panel, .console { padding: 10px; }
  .game-panel { display: grid; grid-template-columns: minmax(0, 1fr) 80px; gap: 10px; }
  .stats-row { grid-column: 2; grid-row: 1; display: flex; flex-direction: column; align-items: flex-start; gap: 12px; padding: 0; }
  .stats-row>div { align-self: auto; display: block; }.stat-label { white-space: normal; }
  .board-container { grid-column: 1; grid-row: 1 / 3; width: 100%; margin: 0; }
  .game-panel-bottom { grid-column: 2; grid-row: 2; flex-direction: column; align-items: stretch; align-self: end; margin: 0; gap: 8px; }
  .game-panel-bottom .solid-button { min-width: 0; padding-inline: 8px; gap: 4px; }
  .blocks-panel { grid-template-columns: minmax(0, calc((100svh - 100px - env(safe-area-inset-top)) / 2 + 12px)) 56px 56px; gap: 10px; width: fit-content; max-width: 100%; }
  .blocks-stage { display: contents; }.blocks-board-wrap { grid-column: 1; grid-row: 1; }
  .blocks-panel .stats-row { grid-column: 2; grid-row: 1; }
  .blocks-stage>aside { grid-column: 3; grid-row: 1; }
  .blocks-side-note { margin-top: 12px; }.mobile-action-slot { margin-top: 12px; }
  .console { display: grid; grid-template-columns: minmax(0, 1fr) 64px; gap: 10px; width: min(100%, calc(100svh - 34px)); }
  .metrics { grid-column: 2; grid-row: 1; display: flex; flex-direction: column; gap: 10px; padding: 0; }
  .metric, .metric:first-child { padding: 0; display: block; }
  .metric-label { white-space: nowrap; }
  .board-wrap { grid-column: 1; grid-row: 1; width: 100%; margin: 0; }
  .timer-track { grid-column: 1; grid-row: 2; margin: 0; align-self: center; }
  .console-bottom { grid-column: 2; grid-row: 2; min-height: 20px; }
  .console-bottom #board-caption { display: none; }
  .console-footnote { margin-top: 4px; font-size: 10px; line-height: 1.3; gap: 8px; width: min(100%, calc(100svh - 34px)); }
  .game-overlay { padding: 16px; }.game-overlay h2 { font-size: 24px; }
  .game-overlay p { font-size: 12px; margin-bottom: 16px; }
  .home-page .welcome h1 { font-size: 52px; }
  .home-page .game-cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}