/* ==========================================================================
   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-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 {
    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;
    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;
}

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

.solitaire-watermark {
    font-size: 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;
    top: 4%;
    left: 9%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    line-height: 1;
    font-size: calc(var(--card-w) * .26);
}

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

.scard-corner i {
    font-style: normal;
    font-size: .92em;
}

.scard-pip {
    font-size: calc(var(--card-w) * .46);
    opacity: .9;
    line-height: 1;
}

.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;
}

.solitaire-col .scard {
    margin-top: calc(var(--card-h) * -0.62);
}

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

.solitaire-col .scard-back + .scard-back {
    margin-top: calc(var(--card-h) * -0.76);
}

.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;
}

@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;
}

.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);
}