:root {
    --alg-grid-gap: 1rem;
}

.alg-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--alg-grid-gap);
    /* Remove the left divider line (styles.css had a global border-left). */
    padding-left: 0;
    border-left: none !important;
}

/* Make the left column card and the right-side main card match the title box rounding */
.left-panel>.card,
.col-md-7>.card,
.col-lg-8>.card {
    border-radius: 0.5rem;
    /* matches Bootstrap .rounded-3 */
    overflow: hidden;
    /* match title card behavior */
}

.alg-card {
    display: block;
    border-radius: 0.5rem;
    overflow: hidden;
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s, border-color 0.2s;
    border: 1px solid var(--border-color);
    position: relative;
    background-color: var(--card-bg);
}

.alg-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow);
    text-decoration: none;
}

.alg-card-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.75rem;
    height: 100%;
    background-color: inherit;
    position: relative;
}

.alg-card img {
    max-width: 100%;
    height: auto;
    margin-bottom: 0.5rem;
}

.case-toggle-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 10;
    opacity: 0.9;
}

.case-toggle-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

.case-toggle-btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(13, 110, 253, 0.25);
}

.case-toggle-btn.btn-known {
    background-color: var(--success-color);
    color: #ffffff;
}

.case-toggle-btn.btn-learning {
    background-color: var(--warning-color);
    color: var(--bg-color);
}

.case-toggle-btn.btn-unknown {
    background-color: var(--danger-color);
    color: #ffffff;
}

.case-toggle-btn[disabled],
.case-toggle-btn.disabled {
    pointer-events: none;
    opacity: 0.6;
}

.alg-notation {
    font-family: 'Roboto Mono', monospace;
    font-weight: 500;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    transition: background-color 0.2s;
    text-align: left;
    flex-grow: 1;
    letter-spacing: -0.03em;
    word-break: break-word;
    color: var(--algorithm-text);
}

.alg-notation:hover {
    background-color: rgba(13, 110, 253, 0.12);
}

.alg-label {
    font-family: 'Roboto Mono', monospace;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    padding: 0.25rem 0;
    max-width: 100%;
    white-space: normal;
    overflow: visible;
    letter-spacing: -0.03em;
    line-height: 1.4;
    color: var(--algorithm-text);
}

.alg-card-known {
    border-color: #28a745;
    background-color: rgba(40, 167, 69, 0.15);
}

.alg-card-learning {
    border-color: #ffc107;
    background-color: rgba(255, 193, 7, 0.2);
}

.alg-card-unknown {
    border-color: #dc3545;
    background-color: rgba(220, 53, 69, 0.15);
}

.selected-card {
    border-color: #0d6efd !important;
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.25) !important;
}

.alg-item {
    transition: transform 0.1s;
}

.alg-item:hover {
    transform: translateX(3px);
}

.alg-scroll-container {
    /* Allow the alg list to size to its content unless it exceeds the viewport fraction */
    max-height: 40vh;
    overflow-y: auto;
    overflow-x: hidden;
    /* prevent horizontal scrollbars */
    white-space: normal;
}

.alg-label .badge.bg-success,
.card-body .alg-label .badge.bg-success,
.left-panel .card .alg-label .badge.bg-success {
    background-color: var(--bs-success, #198754) !important;
    color: #fff !important;
}

.alg-label .badge.bg-warning,
.card-body .alg-label .badge.bg-warning,
.left-panel .card .alg-label .badge.bg-warning {
    background-color: var(--bs-warning, #ffc107) !important;
    color: #212529 !important;
}

.alg-label .badge.bg-danger,
.card-body .alg-label .badge.bg-danger,
.left-panel .card .alg-label .badge.bg-danger {
    background-color: var(--bs-danger, #dc3545) !important;
    color: #fff !important;
}

/* Ensure header summary badges also display with correct colors */
.card .badge.bg-success,
.card .badge.bg-warning,
.card .badge.bg-danger {
    box-shadow: none;
}

/* Force header/summary badges to use the correct semantic colors */
.card .badge.bg-success {
    background-color: var(--bs-success, #198754) !important;
    color: #fff !important;
}

.card .badge.bg-warning {
    background-color: var(--bs-warning, #ffc107) !important;
    color: #212529 !important;
}

.card .badge.bg-danger {
    background-color: var(--bs-danger, #dc3545) !important;
    color: #fff !important;
}

/* Style the alg list toggle to match site buttons while keeping it subtle */
.alg-list-toggle {
    display: inline-block;
    margin: 0.5rem auto 0;
    padding: 0.25rem 0.6rem;
    border-radius: 0.375rem;
    font-weight: 600;
    text-align: center;
}

.alg-list-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

/* Ensure button state classes are defined at top-level (not nested) */
.btn-known {
    background-color: var(--success-color);
    color: #ffffff;
}

.btn-learning {
    background-color: var(--warning-color);
    color: var(--bg-color);
}

.btn-unknown {
    background-color: var(--danger-color);
    color: #ffffff;
}

/* Left-panel alg list badges (items) */
.alg-item .badge.bg-success {
    background-color: var(--bs-success, #198754) !important;
    color: #fff !important;
}

.alg-item .badge.bg-warning {
    background-color: var(--bs-warning, #ffc107) !important;
    color: #212529 !important;
}

.alg-item .badge.bg-danger {
    background-color: var(--bs-danger, #dc3545) !important;
    color: #fff !important;
}

/* other top-level rules previously nested (moved outside) */
.cube-player-container {
    /* Make cube player container visually match the borderless player used in algs_template */
    border-radius: 0.5rem;
    background-color: transparent;
    /* remove boxed background */
    border: none;
    /* remove extra border */
    padding: 0;
    /* remove extra padding so player sits flush */
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.case-info-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Cards used in the subset / ZBLL modals */
.algset-card {
    width: 120px;
    min-height: 140px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.algset-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow);
}

.f2l-case-card {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    text-align: center;
    transition: all 0.2s;
    cursor: pointer;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.f2l-case-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
    border-color: var(--primary-color);
}

.f2l-case-card img {
    max-width: 80px;
    max-height: 80px;
    margin: 0 auto 0.5rem;
}

.f2l-case-card h6 {
    margin: 0;
    font-weight: 600;
}

.subset-card {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    text-align: center;
    transition: all 0.2s;
    cursor: pointer;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.subset-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
    border-color: var(--primary-color);
}

.subset-card img {
    max-width: 80px;
    max-height: 80px;
    margin: 0 auto 0.5rem;
}

.subset-card h6 {
    margin: 0;
    font-weight: 600;
}

/* Responsive cube player used in add_alg (and similar pages).
   Ensures the player fits inside the allocated box on small screens
   and preserves a square aspect ratio. Overrides inline sizing
   on narrow viewports where necessary. */
#cubeDisplay {
    width: 196px;
    /* default size used in template */
    height: 196px;
    max-width: 100%;
    box-sizing: border-box;
}

/* class-based selector for the updated template markup */
.cube-display-size {
    width: 196px;
    height: 196px;
    max-width: 100%;
    box-sizing: border-box;
}

#cubeDisplay #twisty-container,
#cubeDisplay>div,
#cubeDisplay cube-player {
    width: 100% !important;
    height: 100% !important;
    display: block;
}

/* On small screens allow the container to scale down while staying square */
@media (max-width: 576px) {
    #cubeDisplay {
        width: 90vw !important;
        /* fit most of the viewport width */
        max-width: 196px;
        height: auto !important;
        /* let aspect-ratio define height */
        aspect-ratio: 1 / 1;
        /* keep square */
    }

    #cubeDisplay #twisty-container,
    #cubeDisplay cube-player {
        width: 100% !important;
        height: 100% !important;
    }
}