/* ==========================================================================
   Hand-written, PHP-maintained UI overrides.
   Loaded after the prebuilt design system in public/css/app.css.
   Use this file for small visual fixes that should not require a Node build.
   ========================================================================== */

/* ==========================================================================
   Sudoku playground
   ========================================================================== */
.sudoku-shell {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.sudoku-heading {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: space-between;
}

@media (min-width: 900px) {
    .sudoku-heading {
        flex-direction: row;
        align-items: flex-end;
    }
}

.sudoku-back-link {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font: 600 10px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--muted);
    border-bottom: 1px solid var(--rule);
    padding-bottom: .35rem;
    width: fit-content;
    transition: color 120ms ease, border-color 120ms ease;
}

.sudoku-back-link:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.sudoku-topbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
}

.sudoku-difficulty {
    display: inline-flex;
    flex-wrap: wrap;
    gap: .25rem;
    padding: .25rem;
    background: var(--surface-2);
    border: 1px solid var(--rule);
    border-radius: var(--r);
}

.sudoku-difficulty button {
    border: 0;
    background: transparent;
    color: var(--soft);
    font: 600 10px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: .55rem .85rem;
    border-radius: calc(var(--r) - 2px);
    cursor: pointer;
    transition: background-color 120ms ease, color 120ms ease;
}

.sudoku-difficulty button:hover {
    color: var(--ink);
    background: var(--surface);
}

.sudoku-difficulty button.is-active {
    background: var(--accent);
    color: var(--on-accent);
}

.sudoku-new-btn,
.sudoku-primary-btn {
    border: 1px solid var(--accent);
    background: var(--accent);
    color: var(--on-accent);
    font: 600 10px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: .7rem 1rem;
    border-radius: var(--r);
    cursor: pointer;
    transition: opacity 120ms ease, transform 120ms ease;
}

.sudoku-new-btn:hover,
.sudoku-primary-btn:hover {
    opacity: .9;
}

.sudoku-secondary-btn {
    border: 1px solid var(--rule);
    background: var(--surface);
    color: var(--ink);
    font: 600 10px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: .7rem 1rem;
    border-radius: var(--r);
    cursor: pointer;
}

.sudoku-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
    align-items: start;
}

@media (min-width: 1000px) {
    .sudoku-layout {
        grid-template-columns: minmax(0, 1fr) 280px;
    }
}

.sudoku-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.sudoku-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .5rem;
}

@media (min-width: 560px) {
    .sudoku-stats {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.sudoku-stat {
    border: 1px solid var(--rule);
    background: var(--paper);
    border-radius: var(--r);
    padding: .55rem .7rem;
}

.sudoku-stat-label {
    display: block;
    font: 600 9px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--muted);
}

.sudoku-stat-value {
    display: block;
    margin-top: .3rem;
    font: 700 1.15rem/1 var(--font-display, ui-sans-serif, sans-serif);
    font-variant-numeric: tabular-nums;
    color: var(--ink);
}

.sudoku-board-wrap {
    position: relative;
    width: 100%;
    max-width: 560px;
    margin: 0 auto;
}

.sudoku-board {
    display: grid;
    grid-template-columns: repeat(9, minmax(0, 1fr));
    aspect-ratio: 1 / 1;
    width: 100%;
    border: 2px solid var(--ink);
    border-radius: var(--r);
    overflow: hidden;
    background: var(--surface);
    outline: none;
}

.sudoku-board:focus-visible {
    box-shadow: 0 0 0 3px var(--accent-border);
}

.sudoku-cell {
    position: relative;
    min-width: 0;
    border: 0;
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    background: var(--surface);
    color: var(--ink);
    font-family: var(--font-display, ui-sans-serif, sans-serif);
    font-weight: 600;
    font-size: clamp(.95rem, 3.4vw, 1.55rem);
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    cursor: pointer;
    transition: background-color 100ms ease, color 100ms ease;
}

.sudoku-cell:nth-child(9n) {
    border-right: 0;
}

.sudoku-cell:nth-child(n + 73) {
    border-bottom: 0;
}

.sudoku-cell.box-right {
    border-right: 2px solid var(--ink);
}

.sudoku-cell.box-bottom {
    border-bottom: 2px solid var(--ink);
}

.sudoku-cell.given {
    background: var(--paper);
    color: var(--ink);
    font-weight: 700;
}

.sudoku-cell.peer {
    background: color-mix(in srgb, var(--accent) 6%, var(--surface));
}

.sudoku-cell.same {
    color: var(--accent);
}

.sudoku-cell.selected {
    background: var(--accent-soft);
    box-shadow: inset 0 0 0 2px var(--accent);
    z-index: 1;
}

.sudoku-cell.error {
    color: var(--bad);
    background: var(--bad-soft);
}

.sudoku-cell.hint {
    color: var(--ok);
}

.sudoku-value {
    pointer-events: none;
}

.sudoku-notes {
    position: absolute;
    inset: 2px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-rows: repeat(3, minmax(0, 1fr));
    font: 600 clamp(6px, 1.15vw, 9px)/1 var(--font-mono, ui-monospace, monospace);
    color: var(--muted);
    pointer-events: none;
}

.sudoku-note {
    display: flex;
    align-items: center;
    justify-content: center;
}

.sudoku-board-wrap .sudoku-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    background: color-mix(in srgb, var(--paper) 78%, transparent);
    backdrop-filter: blur(5px);
    border-radius: var(--r);
    z-index: 10;
}

.sudoku-overlay.hidden {
    display: none !important;
}

.sudoku-overlay-card {
    width: 100%;
    max-width: 340px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .6rem;
    text-align: center;
    padding: 1.4rem;
    border: 1px solid var(--rule);
    border-radius: var(--r);
    background: var(--surface);
    box-shadow: 0 18px 50px rgba(0, 0, 0, .14);
}

.sudoku-overlay-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .5rem;
    margin-top: .35rem;
}

.sudoku-gen-status {
    min-height: 1rem;
    font: 600 10px/1.3 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--accent);
    text-align: center;
}

.sudoku-shell.is-generating .sudoku-board {
    opacity: .45;
    pointer-events: none;
}

.sudoku-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .4rem;
}

.sudoku-control-btn {
    border: 1px solid var(--rule);
    background: var(--paper);
    color: var(--soft);
    font: 600 9px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: .65rem .8rem;
    border-radius: var(--r);
    cursor: pointer;
    transition: color 120ms ease, border-color 120ms ease, background-color 120ms ease;
}

.sudoku-control-btn:hover {
    color: var(--ink);
    border-color: var(--accent);
}

.sudoku-control-btn.is-active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--on-accent);
}

.sudoku-numpad {
    display: grid;
    grid-template-columns: repeat(9, minmax(0, 1fr));
    gap: .35rem;
    max-width: 560px;
    width: 100%;
    margin: 0 auto;
}

.sudoku-pad-btn {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .15rem;
    min-height: 3.1rem;
    border: 1px solid var(--rule);
    border-radius: var(--r);
    background: var(--surface);
    color: var(--ink);
    cursor: pointer;
    transition: background-color 120ms ease, border-color 120ms ease;
}

.sudoku-pad-btn:hover:not(:disabled) {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.sudoku-pad-btn:disabled,
.sudoku-pad-btn.is-complete {
    opacity: .35;
    cursor: not-allowed;
}

.sudoku-pad-number {
    font: 700 1.1rem/1 var(--font-display, ui-sans-serif, sans-serif);
}

.sudoku-pad-count {
    font: 600 8px/1 var(--font-mono, ui-monospace, monospace);
    color: var(--muted);
}

.sudoku-aside {
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.sudoku-aside-card {
    border: 1px solid var(--rule);
    border-radius: var(--r);
    background: var(--surface);
    padding: 1rem;
}

.sudoku-aside-card--quiet {
    background: var(--surface-2);
    border-style: dashed;
}

.sudoku-aside-kicker {
    display: block;
    font: 600 9px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: .4rem;
}

.sudoku-aside-card p {
    font-size: 11px;
    line-height: 1.6;
    color: var(--soft);
}

.sudoku-rules {
    margin-top: .65rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
    font-size: 11px;
    line-height: 1.55;
    color: var(--soft);
    list-style: none;
    padding: 0;
}

.sudoku-rules li {
    position: relative;
    padding-left: .9rem;
}

.sudoku-rules li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .55em;
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
}

.sudoku-shortcuts {
    margin-top: .65rem;
    display: flex;
    flex-direction: column;
    gap: .3rem;
}

.sudoku-shortcuts > div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: .5rem;
    border-bottom: 1px solid var(--rule-soft);
    padding-bottom: .25rem;
    font-size: 10px;
    color: var(--soft);
}

.sudoku-shortcuts dt {
    font: 600 9px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--ink);
}

@media (max-width: 560px) {
    .sudoku-numpad {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .sudoku-stat-value {
        font-size: 1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .sudoku-cell,
    .sudoku-pad-btn,
    .sudoku-control-btn,
    .sudoku-difficulty button {
        transition: none;
    }
}

/* ==========================================================================
   Playground shell: tabs, full screen, shared game chrome
   ========================================================================== */
.play-shell {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.play-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .75rem 1rem;
    margin-bottom: 1.5rem;
}

.play-topbar .play-tabs {
    margin: 0;
}

.play-heading {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: space-between;
}

@media (min-width: 900px) {
    .play-heading {
        flex-direction: row;
        align-items: flex-end;
    }
}

.play-heading-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .6rem;
}

.play-fullscreen-btn {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    border: 1px solid var(--rule);
    background: var(--surface);
    color: var(--ink);
    font: 600 10px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: .65rem .85rem;
    border-radius: var(--r);
    cursor: pointer;
    transition: border-color 120ms ease, color 120ms ease, background-color 120ms ease;
}

.play-fullscreen-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.play-fullscreen-btn[aria-pressed="true"] {
    border-color: var(--accent);
    background: var(--accent-soft);
    color: var(--accent);
}

.play-fullscreen-icon {
    width: 14px;
    height: 14px;
}

.play-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: .25rem;
    padding: .3rem;
    background: var(--surface-2);
    border: 1px solid var(--rule);
    border-radius: var(--r);
    width: fit-content;
    max-width: 100%;
}

.play-tabs [role="tab"] {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    border: 0;
    background: transparent;
    color: var(--soft);
    font: 600 10px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: .6rem .95rem;
    border-radius: calc(var(--r) - 2px);
    cursor: pointer;
    transition: background-color 120ms ease, color 120ms ease;
}

.play-tabs [role="tab"]:hover {
    color: var(--ink);
    background: var(--surface);
}

.play-tabs [role="tab"][aria-selected="true"] {
    background: var(--accent);
    color: var(--on-accent);
}

.play-tab-index {
    font-size: 8px;
    opacity: .7;
}

.play-panel.hidden {
    display: none !important;
}

.play-shell:fullscreen,
.play-shell:-webkit-full-screen,
.play-shell.is-fullscreen {
    position: fixed;
    inset: 0;
    z-index: 95;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: clamp(1rem, 2.6vw, 2.25rem);
    background: var(--paper);
    overflow-y: auto;
    border-radius: 0;
}

.play-shell:fullscreen .play-heading,
.play-shell.is-fullscreen .play-heading {
    max-width: 1280px;
    margin-inline: auto;
    width: 100%;
}

.play-shell:fullscreen .play-tabs,
.play-shell.is-fullscreen .play-tabs,
.play-shell:fullscreen .play-panel,
.play-shell.is-fullscreen .play-panel {
    max-width: 1280px;
    margin-inline: auto;
    width: 100%;
}

@media (prefers-reduced-motion: reduce) {
    .play-tabs [role="tab"],
    .play-fullscreen-btn {
        transition: none;
    }
}

/* ==========================================================================
   Shared game chrome (Tetris, Solitaire, overlays)
   ========================================================================== */
.game-head-text {
    position: relative;
    min-width: 0;
}

.game-title-row {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
}

/* How-to-play lives behind a small "i" next to the game name. */
.game-info {
    width: 22px;
    height: 22px;
    padding: 0;
    border: 1px solid var(--rule);
    border-radius: 50%;
    background: var(--surface-2);
    color: var(--soft);
    font: 700 11px/1 var(--font-mono, ui-monospace, monospace);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: border-color 120ms ease, color 120ms ease, background-color 120ms ease;
}

.game-info:hover,
.game-info:focus-visible,
.game-info[aria-expanded="true"] {
    border-color: var(--accent);
    color: var(--accent);
}

.game-info-panel {
    position: absolute;
    top: calc(100% + .6rem);
    left: 0;
    z-index: 8;
    width: min(340px, 88vw);
    margin: 0;
    padding: .7rem .85rem;
    border: 1px solid var(--rule);
    border-radius: var(--r);
    background: var(--surface);
    color: var(--soft);
    font: 500 11px/1.6 var(--font-mono, ui-monospace, monospace);
    box-shadow: 0 14px 34px rgba(0, 0, 0, .35);
}

.game-info-panel[hidden] {
    display: none;
}
.game-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: .75rem;
}

.game-title {
    font: 600 1.4rem/1.15 var(--font-display, ui-sans-serif, sans-serif);
    color: var(--ink);
    letter-spacing: -.01em;
}

.game-sub {
    margin-top: .35rem;
    max-width: 52ch;
    font-size: 12px;
    line-height: 1.6;
    color: var(--soft);
}

.game-badge {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    border: 1px solid var(--accent-border);
    background: var(--accent-soft);
    color: var(--accent);
    font: 600 9px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: .4rem .6rem;
    border-radius: 9999px;
    white-space: nowrap;
}

.game-status {
    min-height: 1rem;
    font: 600 9px/1.3 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--muted);
    text-align: center;
}

.game-card {
    border: 1px solid var(--rule);
    border-radius: var(--r);
    background: var(--surface);
    padding: .85rem;
}

.game-card--quiet {
    background: var(--surface-2);
    border-style: dashed;
}

.game-kicker {
    display: block;
    font: 600 9px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--muted);
}

.game-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .5rem;
}

.game-stat {
    border: 1px solid var(--rule);
    background: var(--paper);
    border-radius: var(--r);
    padding: .55rem .7rem;
}

.game-stat-label {
    display: block;
    font: 600 9px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--muted);
}

.game-stat-value {
    display: block;
    margin-top: .3rem;
    font: 700 1.1rem/1 var(--font-display, ui-sans-serif, sans-serif);
    font-variant-numeric: tabular-nums;
    color: var(--ink);
}

.game-overlay {
    position: absolute;
    inset: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.1rem;
    background: color-mix(in srgb, var(--paper) 80%, transparent);
    backdrop-filter: blur(5px);
    border-radius: var(--r);
}

.game-overlay.hidden {
    display: none !important;
}

.game-overlay-card {
    width: 100%;
    max-width: 330px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .55rem;
    text-align: center;
    padding: 1.3rem;
    border: 1px solid var(--rule);
    border-radius: var(--r);
    background: var(--surface);
    box-shadow: 0 18px 50px rgba(0, 0, 0, .14);
}

.game-overlay-title {
    font: 600 1.25rem/1.2 var(--font-display, ui-sans-serif, sans-serif);
    color: var(--ink);
}

.game-overlay-text {
    font-size: 11px;
    line-height: 1.6;
    color: var(--soft);
}

.game-overlay-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .5rem;
    margin-top: .35rem;
}

/* ==========================================================================
   Tetris
   ========================================================================== */
.tetris-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.1rem;
    align-items: start;
    justify-items: center;
}

@media (min-width: 980px) {
    .tetris-layout {
        grid-template-columns: minmax(0, 1fr) 240px;
        justify-items: stretch;
    }
}

.tetris-stage-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .5rem;
    min-width: 0;
    width: 100%;
}

.tetris-stage {
    position: relative;
    touch-action: none;
    width: min(100%, 40vh, 320px);
    aspect-ratio: 1 / 2;
    background: var(--surface);
    border: 2px solid var(--ink);
    border-radius: var(--r);
    overflow: hidden;
}

.tetris-stage canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.tetris-side {
    display: flex;
    flex-direction: column;
    gap: .7rem;
    width: 100%;
    max-width: 340px;
    min-width: 0;
}

.game-card--next {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .5rem;
    padding: .75rem;
}

.game-card--next canvas {
    width: 120px;
    height: 120px;
    background: var(--paper);
    border: 1px solid var(--rule);
    border-radius: var(--r);
}

.tetris-pad {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .35rem;
    margin-top: .55rem;
}

.tetris-pad button {
    border: 1px solid var(--rule);
    background: var(--paper);
    color: var(--ink);
    font: 600 11px/1.2 var(--font-mono, ui-monospace, monospace);
    padding: .6rem .4rem;
    border-radius: var(--r);
    cursor: pointer;
    transition: border-color 120ms ease, color 120ms ease, background-color 120ms ease;
}

.tetris-pad button:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
    color: var(--accent);
}

/* ==========================================================================
   Klondike Solitaire
   ========================================================================== */
.solitaire-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.1rem;
    align-items: start;
}

@media (min-width: 1080px) {
    .solitaire-layout {
        grid-template-columns: minmax(0, 1fr) 240px;
    }
}

.solitaire-stage {
    position: relative;
    min-width: 0;
}

.solitaire-board {
    --card-w: clamp(38px, 10.4vw, 74px);
    --card-h: calc(var(--card-w) * 1.42);
    overflow-x: auto;
    padding-bottom: .4rem;
}

.solitaire-top,
.solitaire-tableau {
    display: grid;
    grid-template-columns: repeat(7, var(--card-w));
    gap: clamp(4px, .8vw, 10px);
    justify-content: center;
    align-items: start;
}

.solitaire-top {
    margin-bottom: 1.1rem;
}

.solitaire-slot {
    position: relative;
    width: var(--card-w);
    height: var(--card-h);
    border: 1px dashed var(--rule);
    border-radius: calc(var(--r) * 1.6);
    background: var(--surface-2);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    cursor: pointer;
    overflow: hidden;
}

.solitaire-slot.is-empty {
    opacity: .6;
}

.solitaire-slot-stock .scard-static {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: calc(var(--r) * 1.6);
    cursor: pointer;
}

/* Any card living inside a slot fills it exactly; the slot's watermark (a suit
   glyph on empty foundations) must never push the card aside. */
.solitaire-slot > .scard {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.solitaire-slot > .solitaire-watermark {
    position: relative;
    z-index: 0;
}

.scard[data-loc] {
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}

.solitaire-slot.is-drop-target,
.solitaire-col.is-drop-target {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 12%, var(--surface-2));
}

.solitaire-col.is-drop-target::before {
    border-color: var(--accent);
}

.scard.is-dragging {
    visibility: hidden;
}

/* Floating stack that follows the pointer while a card (or run) is dragged. */
.solitaire-drag-ghost {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 90;
    pointer-events: none;
    filter: drop-shadow(0 14px 28px rgba(0, 0, 0, .28));
    will-change: transform;
}

.solitaire-drag-ghost .scard {
    position: absolute;
    left: 0;
}

.solitaire-drag-ghost .scard-ghost {
    opacity: .97;
    transform: rotate(-1.2deg);
}

.solitaire-recycle {
    font: 600 calc(var(--card-w) * .52)/1 var(--font-display, ui-sans-serif, sans-serif);
    color: var(--muted);
}

.solitaire-watermark {
    width: calc(var(--card-w) * .48);
    height: calc(var(--card-w) * .48);
    color: var(--muted);
    opacity: .45;
    user-select: none;
}

.solitaire-col {
    position: relative;
    min-height: var(--card-h);
    display: flex;
    flex-direction: column;
    align-items: center;
    border-radius: calc(var(--r) * 1.6);
    border: 1px dashed transparent;
}

.solitaire-col::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: var(--card-h);
    border: 1px dashed var(--rule);
    border-radius: calc(var(--r) * 1.6);
    background: color-mix(in srgb, var(--surface-2) 65%, transparent);
    pointer-events: none;
}

.solitaire-empty-hint {
    position: absolute;
    top: calc(var(--card-h) / 2);
    left: 50%;
    transform: translate(-50%, -50%);
    font: 600 calc(var(--card-w) * .4)/1 var(--font-display, ui-sans-serif, sans-serif);
    color: var(--muted);
    opacity: .4;
    pointer-events: none;
}

.scard {
    position: relative;
    width: var(--card-w);
    height: var(--card-h);
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid var(--rule);
    border-radius: calc(var(--r) * 1.6);
    background: var(--surface);
    box-shadow: 0 1px 0 rgba(0, 0, 0, .05);
    font-family: var(--font-display, ui-sans-serif, sans-serif);
    cursor: pointer;
    overflow: hidden;
    transition: transform 90ms ease, box-shadow 90ms ease, outline-color 90ms ease;
}

.scard-red {
    color: #b23b34;
}

.scard-black {
    color: var(--ink);
}

.scard-back {
    background:
        repeating-linear-gradient(45deg, color-mix(in srgb, var(--accent) 22%, var(--surface)) 0 5px, var(--surface-2) 5px 10px);
    border-color: var(--accent-border);
    cursor: default;
}

.scard-static {
    box-shadow: none;
}

.scard-corner {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    line-height: 1;
    font-size: calc(var(--card-w) * .22);
    font-weight: 700;
}

/* Index corners sit at the top-right and bottom-left, the bottom one inverted. */
.scard-corner.is-top {
    top: 5%;
    right: 7%;
}

.scard-corner.is-bottom {
    bottom: 5%;
    left: 7%;
    transform: rotate(180deg);
}

.scard-corner b {
    font-weight: 700;
}

.scard-corner i {
    display: block;
    width: .72em;
    height: .72em;
    font-style: normal;
    font-size: .92em;
    opacity: .85;
}

.scard-pip {
    width: calc(var(--card-w) * .44);
    height: calc(var(--card-w) * .44);
    opacity: .9;
}

/* Angular suit glyphs are inline SVG paths, so they stay crisp at any size. */
.suit-glyph {
    display: block;
    width: 100%;
    height: 100%;
    fill: currentColor;
}

 .scard-face {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46%;
    color: currentColor;
}

.scard-face svg {
    display: block;
    width: 100%;
    height: auto;
}

.scard.is-selected {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
    transform: translateY(-2px);
    z-index: 2;
}

.scard:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* --stack-scale (set per column by the Solitaire renderer) scales the *visible*
   strip of every stacked card, so long columns shrink instead of growing tall. */
.solitaire-col .scard {
    margin-top: calc(var(--card-h) * (0.38 * var(--stack-scale, 1) - 1));
}

/* Hovering a buried card pushes the card in front of it down a little, so the
   hovered face shows without changing the column's layout height. */
.solitaire-col .scard:not(.scard-back):hover + .scard:not(.scard-back):not(.is-selected) {
    transform: translateY(calc(var(--card-h) * 0.16));
    z-index: 1;
}


.solitaire-col .scard:first-child {
    margin-top: 0;
}

.solitaire-col .scard-back + .scard-back {
    margin-top: calc(var(--card-h) * (0.24 * var(--stack-scale, 1) - 1));
}

.solitaire-side {
    display: flex;
    flex-direction: column;
    gap: .7rem;
    width: 100%;
    max-width: 340px;
}

.solitaire-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin-top: .55rem;
}

.solitaire-actions button {
    flex: 1 1 auto;
}

.solitaire-actions button:disabled {
    opacity: .45;
    cursor: not-allowed;
}

/* Auto-solve only shows when the remaining cards are already in order. */
.sudoku-auto-btn {
    width: 100%;
    margin-top: .55rem;
    padding: .7rem 1rem;
    border: 1px solid var(--accent);
    border-radius: var(--r);
    background: var(--accent-soft);
    color: var(--accent);
    font: 600 10px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: opacity 120ms ease, transform 120ms ease;
}

.sudoku-auto-btn:hover {
    opacity: .9;
}

.sudoku-auto-btn:disabled {
    opacity: .5;
    cursor: progress;
}

.solitaire-auto-hint {
    margin-top: .5rem;
    font: 500 9px/1.5 var(--font-mono, ui-monospace, monospace);
    color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
    .scard {
        transition: none;
    }
}

/* Metric cards: long values (locations, phrases) must not overflow their card. */
.metric .fig {
    overflow-wrap: anywhere;
    hyphens: none;
}

.metric .fig.is-long {
    font-size: clamp(16px, 1.6vw, 20px);
    line-height: 1.25;
}

.metric .fig.is-mid {
    font-size: clamp(20px, 2.1vw, 26px);
    line-height: 1.2;
}

.tetris-stage canvas {
    background:
        linear-gradient(180deg, color-mix(in srgb, var(--accent) 4%, transparent), transparent 40%);
}

/* ---------------------------------------------------------------------------
   Named leaderboards (playground)
   --------------------------------------------------------------------------- */

.score-card {
    display: flex;
    flex-direction: column;
    gap: .55rem;
}

/* A finished run draws attention to the board it can be saved on. */
.score-card.is-offered {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent);
}

.score-view-all {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    border: 0;
    background: none;
    padding: 0;
    font: 600 9px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--accent);
    cursor: pointer;
}

.score-view-all:hover {
    text-decoration: underline;
}

/* Public leaderboard dialog */
.score-modal {
    position: fixed;
    inset: 0;
    z-index: 130;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.score-modal.hidden {
    display: none;
}

.score-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .62);
    backdrop-filter: blur(3px);
}

.score-modal-panel {
    position: relative;
    z-index: 1;
    width: min(560px, 100%);
    max-height: min(82vh, 760px);
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--rule);
    border-radius: var(--r);
    box-shadow: 0 28px 70px rgba(0, 0, 0, .4);
    overflow: hidden;
}

.score-modal-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.1rem;
    border-bottom: 1px solid var(--rule);
}

.score-modal-title {
    margin-top: .25rem;
    font: 600 1.15rem/1.2 var(--font-display, ui-sans-serif, sans-serif);
    color: var(--ink);
}

.score-modal-meta {
    margin-top: .3rem;
    font: 500 10px/1.4 var(--font-mono, ui-monospace, monospace);
    color: var(--muted);
}

.score-modal-close {
    flex: 0 0 auto;
    width: 32px;
    height: 32px;
    border: 1px solid var(--rule);
    border-radius: var(--r);
    background: var(--surface-2);
    color: var(--ink);
    cursor: pointer;
    font-size: 13px;
    line-height: 1;
}

.score-modal-close:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.score-modal-list {
    list-style: none;
    margin: 0;
    padding: .35rem .7rem;
    overflow-y: auto;
    flex: 1 1 auto;
    min-height: 120px;
}

.score-modal-row {
    display: grid;
    grid-template-columns: 3.2rem minmax(0, 1fr) auto auto;
    gap: .6rem;
    align-items: baseline;
    padding: .45rem .35rem;
    border-bottom: 1px solid var(--rule);
    font: 600 11px/1.3 var(--font-mono, ui-monospace, monospace);
    color: var(--ink);
}

.score-modal-row:last-child {
    border-bottom: 0;
}

.score-modal-rank {
    color: var(--muted);
}

.score-modal-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.score-modal-value {
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

.score-modal-when {
    color: var(--muted);
    font-size: 9px;
}

.score-modal-status {
    margin: 0;
    padding: .5rem 1.1rem;
    font: 500 10px/1.5 var(--font-mono, ui-monospace, monospace);
    color: var(--muted);
}

.score-modal-status.is-error {
    color: var(--bad);
}

.score-modal-actions {
    display: flex;
    justify-content: flex-end;
    padding: .55rem 1.1rem .9rem;
}

body.score-modal-open {
    overflow: hidden;
}

@media (max-width: 520px) {
    .score-modal-row {
        grid-template-columns: 2.6rem minmax(0, 1fr) auto;
    }

    .score-modal-when {
        display: none;
    }
}

.score-card-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: .5rem;
}

.score-variant {
    font: 600 9px/1.2 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--accent);
}

.score-entry {
    display: flex;
    flex-direction: column;
    gap: .4rem;
    padding-top: .55rem;
    border-top: 1px dashed var(--rule);
}

/* The component hides this block with the Tailwind `hidden` class; the display
   rule above would otherwise win, so the finished form stayed visible. */
.score-entry.hidden {
    display: none;
}

.score-entry-label {
    font: 600 9px/1.3 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--soft);
}

.score-entry-row {
    display: flex;
    gap: .4rem;
    align-items: stretch;
}

.score-entry input {
    flex: 1;
    min-width: 0;
    height: 32px;
    padding: 0 .55rem;
    border: 1px solid var(--rule);
    border-radius: var(--r);
    background: var(--paper);
    color: var(--ink);
    font: 600 11px/1 var(--font-mono, ui-monospace, monospace);
}

.score-entry input:focus {
    outline: none;
    border-color: var(--accent);
}

.score-entry-row .sudoku-primary-btn {
    height: 32px;
    padding: 0 .8rem;
}

.score-entry-hint {
    font: 500 9px/1.5 var(--font-mono, ui-monospace, monospace);
    color: var(--muted);
}

.score-entry-hint.is-error {
    color: var(--bad);
}

.score-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.score-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: .75rem;
    padding: .3rem 0;
    border-bottom: 1px solid var(--rule);
    font: 600 11px/1.3 var(--font-mono, ui-monospace, monospace);
    color: var(--ink);
}

.score-row:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.score-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.score-value {
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

.score-empty {
    font: 500 10px/1.4 var(--font-mono, ui-monospace, monospace);
    color: var(--muted);
}

/* Minimal mode: strip the page prose so the game owns the screen. */
body.play-minimal #desktop-sidebar {
    display: none !important;
}

body.play-minimal #main-content {
    padding-left: 0 !important;
}

body.play-minimal .play-heading,
body.play-minimal .game-head > div,
body.play-minimal .game-badge,
body.play-minimal .sec-rail,
body.play-minimal .tblock,
body.play-minimal #ask-razy-container {
    display: none;
}

body.play-minimal .play-topbar {
    margin-bottom: .9rem;
}

/* The section grid reserves the rail column; without the rail the body must
   take the full width instead of being auto-placed into the empty column. */
body.play-minimal .sec-in {
    grid-template-columns: minmax(0, 1fr);
}

body.play-minimal .sec-body {
    grid-column: 1 / -1;
}

body.play-minimal .sudoku-aside,
body.play-minimal .solitaire-side .score-card,
body.play-minimal .solitaire-side .game-card--quiet,
body.play-minimal .tetris-side .game-card--quiet {
    display: none;
}

body.play-minimal .solitaire-layout,
body.play-minimal .tetris-layout {
    grid-template-columns: minmax(0, 1fr) 150px;
}

body.play-minimal .sudoku-layout {
    grid-template-columns: minmax(0, 1fr);
}

body.play-minimal .section {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

/* Tetris pad: icon buttons keep the same footprint as the arrow glyphs. */
.tetris-pad button {
    display: flex;
    align-items: center;
    justify-content: center;
}

.tetris-pad-icon {
    width: 14px;
    height: 14px;
    display: block;
}

/* Collapsed sidebar: the command palette trigger is an icon-only square. */
html.sidebar-is-collapsed #desktop-sidebar #command-palette-trigger,
#desktop-sidebar.is-collapsed #command-palette-trigger {
    justify-content: center;
    gap: 0;
    padding-left: 0;
    padding-right: 0;
}

html.sidebar-is-collapsed #desktop-sidebar #command-palette-trigger .search-label,
#desktop-sidebar.is-collapsed #command-palette-trigger .search-label,
html.sidebar-is-collapsed #desktop-sidebar #command-palette-trigger .search-kbd,
#desktop-sidebar.is-collapsed #command-palette-trigger .search-kbd {
    display: none;
}
/* ---------------------------------------------------------------------------
   Phone layout for the playground: drop the blueprint chrome so the game is
   reachable without a long scroll, and keep the controls in one row.
   --------------------------------------------------------------------------- */
@media (max-width: 640px) {
    body.is-play-page .tblock,
    body.is-play-page .sec-rail,
    body.is-play-page .play-heading {
        display: none;
    }

    /* The assistant stays available, docked against the right edge and clear of the pad. */
    body.is-play-page #ask-razy-container {
        bottom: calc(8.4rem + env(safe-area-inset-bottom));
        right: 0;
    }

    body.is-play-page.tetris-pad-hidden #ask-razy-container {
        bottom: calc(.9rem + env(safe-area-inset-bottom));
    }

    body.is-play-page .sec-in {
        grid-template-columns: minmax(0, 1fr);
    }

    body.is-play-page .sec-body {
        grid-column: 1 / -1;
    }

    body.is-play-page .section {
        padding-top: .7rem;
        padding-bottom: 1.2rem;
    }

    body.is-play-page .play-topbar {
        gap: .35rem;
        margin-bottom: .8rem;
        flex-wrap: nowrap;
    }

    body.is-play-page .play-tabs {
        flex: 1 1 auto;
        min-width: 0;
        padding: .2rem;
        gap: .1rem;
    }

    body.is-play-page .play-tabs [role="tab"] {
        padding: .45rem .5rem;
        font-size: 10px;
        gap: .25rem;
        white-space: nowrap;
    }

    body.is-play-page .play-tab-index {
        display: none;
    }

    body.is-play-page .play-heading-actions {
        flex: 0 0 auto;
        flex-wrap: nowrap;
        gap: .3rem;
    }

    body.is-play-page .play-heading-actions .play-fullscreen-btn {
        padding: .55rem;
    }

    body.is-play-page .play-heading-actions .play-fullscreen-btn span {
        display: none;
    }

    body.is-play-page .gead-head,
    body.is-play-page .game-head {
        margin-bottom: .5rem;
    }

    /* Keep the board and controls on screen: secondary cards collapse. */
    body.is-play-page .solitaire-side .score-card,
    body.is-play-page .solitaire-side .game-card--quiet,
    body.is-play-page .tetris-side .game-card--quiet {
        display: none;
    }

    body.is-play-page .solitaire-layout,
    body.is-play-page .tetris-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: .7rem;
    }

    body.is-play-page .solitaire-side,
    body.is-play-page .tetris-side {
        max-width: 100%;
    }

    /* Cap the well by viewport height; the touch pad pins to the bottom bar. */
    body.is-play-page .tetris-stage {
        width: auto;
        height: min(50dvh, 480px);
        max-width: 100%;
    }

    body.is-play-page #panel-tetris {
        padding-bottom: 180px;
    }

    body.is-play-page .game-card--pad {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 45;
        margin: 0;
        padding: .55rem .75rem calc(.55rem + env(safe-area-inset-bottom));
        border-radius: 0;
        border-left: 0;
        border-right: 0;
        border-bottom: 0;
        background: color-mix(in srgb, var(--surface) 94%, transparent);
        backdrop-filter: blur(6px);
    }

    body.is-play-page .game-card--pad .tetris-pad {
        margin-top: .35rem;
    }
}
/* ---------------------------------------------------------------------------
   Assistant launcher can dock to the right edge behind an arrow so it never
   sits on top of page UI (it opens docked on phones and tablets).
   --------------------------------------------------------------------------- */
.ask-razy-dock-row {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: .4rem;
}

/* Docked: chat-bubble tab, inset a touch from the edge so the icon never clips. */
.ask-razy-dock {
    width: 30px;
    height: 30px;
    overflow: hidden;
    flex: none;
    padding: 0;
    border: 1px solid var(--rule);
    border-radius: 50%;
    background: var(--surface);
    color: var(--soft);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: border-color 120ms ease, color 120ms ease;
}

.ask-razy-dock:hover,
.ask-razy-dock:focus-visible {
    border-color: var(--accent);
    color: var(--accent);
}

.ask-razy-dock svg {
    transition: transform 160ms ease;
}

#ask-razy-container.is-docked .ask-razy-copy {
    display: none;
}

#ask-razy-container.is-docked #ask-razy-launcher {
    display: flex;
    padding: .55rem .6rem .55rem .55rem;
    gap: 0;
    border-radius: 16px 0 0 16px;
    border-right: 0;
    box-shadow: -10px 12px 30px rgba(0, 0, 0, .35);
}

#ask-razy-container.is-docked .ask-razy-dock {
    width: 18px;
    height: 40px;
    border-radius: 10px 0 0 10px;
    border-right: 0;
    background: var(--surface);
}

#ask-razy-container.is-docked .ask-razy-dock svg {
    transform: rotate(180deg);
}

/* Docked: a slim chat tab sits flush with the right edge. */
#ask-razy-container.is-docked {
    right: 0;
}

#ask-razy-container.is-docked .ask-razy-dock-row {
    gap: 0;
}



/* Tetris touch pad can be hidden; a compact button brings it back. */
.game-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
}

.tetris-pad-toggle {
    border: 1px solid var(--rule);
    background: transparent;
    color: var(--soft);
    font: 600 9px/1 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .08em;
    text-transform: uppercase;
    padding: .32rem .55rem;
    border-radius: 999px;
    cursor: pointer;
    transition: border-color 120ms ease, color 120ms ease;
}

.tetris-pad-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.tetris-pad-show {
    position: fixed;
    right: .75rem;
    bottom: calc(.75rem + env(safe-area-inset-bottom));
    z-index: 46;
    border: 1px solid var(--accent-border);
    background: var(--surface);
    color: var(--accent);
    font: 600 10px/1 var(--font-mono, ui-monospace, monospace);
    letter-spacing: .08em;
    text-transform: uppercase;
    padding: .6rem .8rem;
    border-radius: 999px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, .32);
    cursor: pointer;
}

body.tetris-pad-hidden .game-card--pad {
    display: none !important;
}

body.tetris-pad-hidden #panel-tetris {
    padding-bottom: 0;
}

/* Phone: keep the board full width and move the stats into a slim right rail. */
@media (max-width: 640px) {
    body.is-play-page .section > div {
        padding-left: .5rem;
        padding-right: .5rem;
    }

    body.is-play-page .section {
        padding-top: .5rem;
        padding-bottom: .75rem;
    }

    body.is-play-page .tetris-layout {
        grid-template-columns: minmax(0, 1fr) 84px;
        gap: .4rem;
        align-items: start;
    }

    body.is-play-page .tetris-side {
        max-width: 84px;
        gap: .35rem;
    }

    body.is-play-page .tetris-side .score-card,
    body.is-play-page .tetris-side .game-card--quiet {
        display: none;
    }

    body.is-play-page .game-card--next {
        padding: .3rem;
    }

    body.is-play-page .game-card--next canvas {
        width: 100%;
        height: auto;
        max-width: 58px;
        margin: 0 auto;
        display: block;
    }

    body.is-play-page .tetris-side .game-kicker {
        font-size: 8px;
        letter-spacing: .12em;
    }

    body.is-play-page .tetris-side .game-stats {
        grid-template-columns: 1fr;
        gap: .3rem;
    }

    body.is-play-page .tetris-side .game-stat {
        padding: .26rem .34rem;
    }

    body.is-play-page .tetris-side .game-stat-label {
        font-size: 7px;
        letter-spacing: .08em;
    }

    body.is-play-page .tetris-side .game-stat-value {
        font-size: 12px;
    }

    body.is-play-page .tetris-stage {
        height: min(62dvh, 560px);
    }

    body.is-play-page .play-topbar {
        margin-bottom: .45rem;
    }

    body.is-play-page .game-head {
        margin-bottom: .3rem;
    }

    body.is-play-page .game-title {
        font-size: 1.15rem;
    }

    body.is-play-page .game-badge {
        font-size: 8px;
        padding: .25rem .5rem;
    }
}
/* Full screen should never scroll: hide the page hero and the quiet side cards
   so the whole board fits the viewport, and clip stray horizontal overflow. */
.play-shell.is-fullscreen {
    overflow: hidden;
}

.play-shell.is-fullscreen .play-heading {
    display: none;
}

.play-shell.is-fullscreen .solitaire-side .score-card,
.play-shell.is-fullscreen .solitaire-side .game-card--quiet,
.play-shell.is-fullscreen .tetris-side .score-card,
.play-shell.is-fullscreen .tetris-side .game-card--quiet {
    display: none;
}

.play-shell.is-fullscreen .solitaire-board,
.solitaire-board {
    overflow-x: clip;
}
/* Full screen keeps the side rail beside the board (when there is room) instead
   of stacking it underneath, which is what forced the page to scroll. */
.play-shell.is-fullscreen .solitaire-layout,
.play-shell.is-fullscreen .tetris-layout {
    grid-template-columns: minmax(0, 1fr) 210px;
    gap: .9rem;
    align-items: start;
}

@media (max-width: 820px) {
    .play-shell.is-fullscreen .solitaire-layout,
    .play-shell.is-fullscreen .tetris-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .play-shell.is-fullscreen .solitaire-side {
        display: none;
    }

    .play-shell.is-fullscreen .tetris-stage {
        height: min(64dvh, 560px);
    }
}
/* Short fullscreen viewports (landscape phones) drop the game head and the side
   rail so the board alone fits the screen. */
@media (max-height: 560px) {
    .play-shell.is-fullscreen .game-head,
    .play-shell.is-fullscreen .solitaire-side,
    .play-shell.is-fullscreen .tetris-side {
        display: none;
    }

    .play-shell.is-fullscreen .solitaire-layout,
    .play-shell.is-fullscreen .tetris-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .play-shell.is-fullscreen {
        padding-top: .4rem;
        padding-bottom: .4rem;
    }
}
/* While a game is full screen the page behind it must not scroll at all. */
body.is-play-fullscreen {
    overflow: hidden;
}
/* Auto-solve flight: a detached clone of the card travels from the tableau to
   its foundation, so the move is always visible even while the board re-renders. */
.solitaire-flying-card {
    position: fixed;
    z-index: 130;
    margin: 0;
    pointer-events: none;
    transform-origin: top left;
    transition: none;
    filter: drop-shadow(0 18px 32px rgba(0, 0, 0, .38));
    will-change: transform;
}
/* Full screen trims its frame so the board gets the pixels instead of padding. */
.play-shell.is-fullscreen {
    padding: .55rem .9rem .3rem;
}

.play-shell.is-fullscreen .play-topbar {
    margin-bottom: .55rem;
}