/* Learn page - admin-managed resource library */

.learn-page {
    width: 100%;
    min-height: calc(100vh - 60px);
    background:
        linear-gradient(180deg, color-mix(in srgb, var(--bg-primary) 88%, var(--bg-secondary) 12%) 0%, var(--bg-primary) 360px);
    color: var(--text-primary);
}

.learn-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: var(--space-xl);
    padding: var(--space-xl) var(--space-2xl);
    background: var(--bg-secondary);
    background-image: var(--gradient-subtle);
    border-bottom: 1px solid var(--border-primary);
}

.learn-header__main {
    min-width: 0;
}

.learn-kicker {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--text-muted);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.learn-title {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0;
    line-height: 1.2;
}

.learn-section-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm);
    max-width: min(58vw, 760px);
    overflow-x: auto;
    scrollbar-width: thin;
}

.learn-section-link {
    flex: 0 0 auto;
    padding: 7px 11px;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    transition:
        color var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast);
}

.learn-section-link:hover,
.learn-section-link:focus-visible {
    color: var(--text-primary);
    border-color: var(--border-focus);
    background: var(--bg-secondary);
}

.learn-content {
    width: min(100%, 1760px);
    margin: 0 auto;
    padding: var(--space-2xl);
}

.learn-section {
    scroll-margin-top: 86px;
}

.learn-section + .learn-section {
    margin-top: var(--space-3xl);
}

.learn-section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-primary);
}

.learn-section-title {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.0625rem;
    font-weight: 700;
    letter-spacing: 0;
    line-height: 1.25;
}

.learn-section-description {
    max-width: 760px;
    margin: var(--space-xs) 0 0;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    line-height: 1.5;
    letter-spacing: 0;
}

.learn-section-count {
    min-width: 32px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 700;
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
}

.learn-resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(164px, 1fr));
    gap: var(--space-xl);
    align-items: start;
}

.learn-resource-grid:has(> .learn-resource--recording) {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.learn-resource-card {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    color: var(--text-primary);
    text-decoration: none;
    outline: none;
}

.learn-resource-grid > .learn-resource--recording {
    grid-column: auto;
    width: 100%;
}

.learn-resource-thumb {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 4 / 5.35;
    overflow: hidden;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background:
        linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    box-shadow: var(--shadow-sm);
    transition:
        transform var(--transition-normal),
        border-color var(--transition-fast),
        box-shadow var(--transition-normal);
}

.learn-resource--landscape .learn-resource-thumb {
    aspect-ratio: 16 / 9;
}

.learn-resource-card:hover .learn-resource-thumb,
.learn-resource-card:focus-visible .learn-resource-thumb {
    transform: translateY(-2px);
    border-color: var(--border-focus);
    box-shadow: var(--shadow-md);
}

.learn-resource-thumb img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.learn-resource-thumb iframe,
.learn-resource-thumb mux-player {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
}

.learn-resource-thumb--embed {
    background: var(--bg-secondary);
}

.learn-resource-card--embed:hover .learn-resource-thumb,
.learn-resource-card--embed:focus-within .learn-resource-thumb {
    transform: translateY(-2px);
    border-color: var(--border-focus);
    box-shadow: var(--shadow-md);
}

.learn-resource-fallback {
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
    color: var(--accent-primary);
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--accent-bg) 74%, transparent) 0%, transparent 68%),
        var(--bg-secondary);
}

.learn-resource-fallback i {
    font-size: 2rem;
}

.learn-resource-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    min-height: 18px;
}

.learn-resource-type {
    color: var(--text-muted);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.2;
    text-transform: uppercase;
}

.learn-resource-source-icon {
    flex: 0 0 auto;
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.learn-resource-source-link {
    display: inline-flex;
    color: inherit;
    text-decoration: none;
}

.learn-resource-card:hover .learn-resource-source-icon,
.learn-resource-card:focus-visible .learn-resource-source-icon,
.learn-resource-card:focus-within .learn-resource-source-icon {
    color: var(--accent-primary);
    transform: translate(1px, -1px);
}

.learn-resource-title {
    display: block;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: 0;
    overflow-wrap: anywhere;
}

.learn-resource-title-link {
    text-decoration: none;
    transition: color var(--transition-fast);
}

.learn-resource-title-link:hover,
.learn-resource-title-link:focus-visible {
    color: var(--accent-primary);
}

.learn-resource-description {
    display: block;
    color: var(--text-secondary);
    font-size: 0.75rem;
    line-height: 1.45;
    letter-spacing: 0;
}

.learn-content--empty {
    min-height: 420px;
    display: grid;
    place-items: center;
}

.learn-empty-state {
    display: grid;
    justify-items: center;
    gap: var(--space-md);
    color: var(--text-secondary);
    text-align: center;
}

.learn-empty-state > i {
    color: var(--accent-primary);
    font-size: 2rem;
}

.learn-empty-state h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0;
}

.learn-faq-bot {
    position: fixed;
    right: 28px;
    bottom: 28px;
    z-index: 1000;
    width: 68px;
    height: 68px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    text-decoration: none;
    border: 1px solid color-mix(in srgb, var(--accent-primary) 22%, var(--border-primary));
    border-radius: 50%;
    background:
        linear-gradient(180deg, color-mix(in srgb, var(--bg-secondary) 94%, var(--accent-bg) 6%) 0%, var(--bg-secondary) 100%);
    box-shadow:
        0 14px 34px color-mix(in srgb, var(--accent-primary) 14%, transparent),
        var(--shadow-md);
    transition:
        transform var(--transition-normal),
        color var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast),
        box-shadow var(--transition-normal);
}

.learn-faq-bot::before {
    content: attr(data-tooltip);
    position: absolute;
    right: calc(100% + 10px);
    top: 50%;
    max-width: 156px;
    padding: 8px 11px;
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1.2;
    white-space: nowrap;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
    opacity: 0;
    pointer-events: none;
    transform: translate(6px, -50%);
    transition:
        opacity var(--transition-fast),
        transform var(--transition-fast);
}

.learn-faq-bot i {
    font-size: 1.8rem;
    line-height: 1;
}

.learn-faq-bot:hover,
.learn-faq-bot:focus-visible {
    color: var(--text-inverse);
    border-color: var(--accent-primary);
    background: var(--accent-primary);
    box-shadow:
        0 16px 42px color-mix(in srgb, var(--accent-primary) 28%, transparent),
        var(--shadow-lg);
    transform: translateY(-2px);
}

.learn-faq-bot:hover::before,
.learn-faq-bot:focus-visible::before {
    opacity: 1;
    transform: translate(0, -50%);
}

.learn-faq-bot:focus-visible {
    outline: none;
    box-shadow:
        0 0 0 3px var(--bg-primary),
        0 0 0 6px color-mix(in srgb, var(--accent-primary) 60%, transparent),
        var(--shadow-lg);
}

@media (max-width: 1024px) {
    .learn-header {
        grid-template-columns: 1fr;
        align-items: start;
        padding: var(--space-lg) var(--space-xl);
    }

    .learn-section-nav {
        justify-content: flex-start;
        max-width: 100%;
        width: 100%;
    }

    .learn-content {
        padding: var(--space-xl);
    }
}

@media (max-width: 640px) {
    .learn-header {
        gap: var(--space-md);
        padding: var(--space-lg);
    }

    .learn-title {
        font-size: 1.25rem;
    }

    .learn-content {
        padding: var(--space-lg);
    }

    .learn-section + .learn-section {
        margin-top: var(--space-2xl);
    }

    .learn-section-header {
        align-items: flex-start;
    }

    .learn-resource-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--space-lg);
    }

    .learn-resource-grid:has(> .learn-resource--recording) {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .learn-faq-bot {
        right: 18px;
        bottom: 18px;
        width: 60px;
        height: 60px;
    }

    .learn-faq-bot::before {
        display: none;
    }
}

@media (max-width: 420px) {
    .learn-resource-grid {
        grid-template-columns: 1fr;
    }

    .learn-resource-grid:has(> .learn-resource--recording) {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .learn-faq-bot,
    .learn-faq-bot::before {
        transition-duration: 0.01ms !important;
    }
}