.game-container:has(#accordion-tableau) {
    --card-width: clamp(72px, 8vw, 90px);
    --card-height: calc(var(--card-width) * 1.4);
    --card-gap: var(--space-sm);
    --accordion-step: 44px;
}

.game-container:has(#accordion-tableau) .game-header {
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.game-container:has(#accordion-tableau) .controls {
    flex-wrap: wrap;
    align-items: center;
}

.game-container:has(#accordion-tableau) .rules-overlay { z-index: calc(var(--z-modal) + 2); }

.game-container:has(#accordion-tableau) .game-board {
    min-width: 0;
}

.accordion-mode {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.accordion-mode select {
    background: var(--button-bg);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
    cursor: pointer;
}

.accordion-board-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.accordion-status {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm) var(--space-lg);
    margin: 0;
    font-size: var(--text-sm);
}
.accordion-status > div { display: flex; align-items: baseline; gap: var(--space-sm); }
.accordion-status dt { color: var(--text-secondary); }
.accordion-status dd { margin: 0; color: var(--accent-gold); font-weight: var(--font-weight-bold); }

.accordion-status [hidden], .controls [hidden], .mobile-sheet-controls [hidden], .accordion-quick-actions [hidden],
.accordion-result[hidden] { display: none; }

.accordion-tableau {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--accordion-step), 1fr));
    gap: var(--space-xl) 0;
    padding-right: calc(var(--card-width) - var(--accordion-step));
    align-items: start;
}

.accordion-pile {
    display: flex;
    flex-direction: column;
    align-items: start;
    position: relative;
    flex: 0 0 var(--card-width);
    width: var(--card-width);
    box-sizing: border-box;
    z-index: 0;
    padding: 0;
    margin: 0;
    border: 0;
    border-radius: var(--card-design-border-radius, 6px);
    color: var(--text-primary);
    background: transparent;
    cursor: pointer;
    font: inherit;
    min-width: 0;
}

.accordion-pile.selected .game-card { box-shadow: 0 0 0 3px var(--selected-color), var(--shadow-md); }
.accordion-pile.destination .game-card { outline: 2px dashed var(--valid-color); outline-offset: 2px; }
.accordion-hints[aria-pressed="true"] { border-color: var(--accent-gold); color: var(--accent-gold-light); }
.accordion-pile .game-card { position: relative; width: 100%; height: auto; aspect-ratio: 1 / 1.4; }
.accordion-pile:not(.row-end) .game-card-center,
.accordion-pile:not(.row-end) .game-card-corner-bottom-right { display: none; }
.accordion-pile-size {
    position: absolute;
    left: var(--space-sm);
    bottom: var(--space-sm);
    z-index: 3;
    padding: 2px 5px;
    min-width: 1.5em;
    border-radius: var(--border-radius-sm);
    background: var(--bg-secondary);
    color: var(--accent-gold-light);
    font-size: var(--text-xs);
}
.accordion-pile-size[hidden] { display: none; }

.accordion-stock {
    flex: 0 0 var(--card-width);
    width: var(--card-width);
    position: relative;
    z-index: 0;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding: 0;
    border: 0;
    border-radius: var(--card-design-border-radius, 6px);
    background: transparent;
    color: var(--text-primary);
    font: inherit;
    cursor: pointer;
}
.accordion-stock .game-card { position: relative; width: 100%; height: auto; aspect-ratio: 1 / 1.4; }

.accordion-result {
    padding: var(--space-lg);
    border: 1px solid var(--accent-gold);
    border-radius: var(--border-radius);
    background: var(--bg-tertiary);
    line-height: 1.6;
    margin-top: var(--space-md);
}

.accordion-quick-actions { display: none; flex-wrap: wrap; gap: var(--space-sm); }
.accordion-quick-actions .btn { min-height: 44px; }
.accordion-learn { display: flex; flex-wrap: wrap; gap: var(--space-lg); margin-top: var(--space-xl); }
.accordion-learn a, .accordion-article a { color: var(--accent-gold-light); text-underline-offset: 3px; }

.accordion-article {
    max-width: 780px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-lg) var(--space-3xl);
    line-height: 1.75;
}

.accordion-article h1 { font-family: Georgia, serif; color: var(--accent-gold); font-size: var(--text-3xl); }
.accordion-article h2 { color: var(--accent-gold-light); font-size: var(--text-xl); margin: var(--space-2xl) 0 var(--space-md); }
.accordion-article p { margin: var(--space-md) 0; }
.accordion-article .intro { font-size: var(--text-lg); }
.accordion-article ul { list-style: disc; padding-left: var(--space-xl); }
.accordion-article .accordion-learn { padding: var(--space-lg); background: var(--surface-table); border-radius: var(--border-radius); }
.accordion-example { padding: var(--space-lg); border: 1px solid var(--surface-table-border); border-radius: var(--border-radius); margin: var(--space-xl) 0; }
.accordion-example figcaption { margin-bottom: var(--space-md); color: var(--accent-gold-light); }
.accordion-diagram { display: flex; flex-wrap: wrap; gap: var(--space-sm); align-items: center; margin: var(--space-sm) 0; }
.accordion-example-card {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-card);
    color: var(--card-black);
    border-radius: var(--border-radius-sm);
    min-width: 52px;
    min-height: 64px;
    padding: var(--space-sm);
    font-weight: var(--font-weight-bold);
}
.accordion-example-card.red { color: var(--card-red); }
.accordion-variation { padding: var(--space-md) 0; border-bottom: 1px solid var(--surface-table-border); }

@media (max-width: 768px) {
    .game-container:has(#accordion-tableau) { --card-width: 72px; }
    .accordion-status { gap: var(--space-sm) var(--space-lg); }
    .accordion-mode { flex-wrap: wrap; }
    .accordion-pile .game-card-corner { flex-direction: column; }
    .accordion-pile .game-card-corner span.rank, .accordion-pile .game-card-corner span.suit { font-size: var(--text-xs); }
    .accordion-article { padding-inline: var(--space-lg); }
}

@media (max-width: 1024px) {
    .accordion-board-header { flex-direction: column; }
    .accordion-quick-actions { display: flex; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
    .game-container:has(#accordion-tableau) .rules-content { animation: none; }
}