/* web/static/css/dev-library.css
 * Developer Library shelf. Colors from theme variables only.
 */

.dev-library {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 28px 48px;
}

.dev-library__header {
    margin-bottom: 24px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 28px 32px;
}

.dev-library__title {
    font-family: var(--font-serif);
    font-size: 2.2em;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 6px;
    letter-spacing: -0.01em;
}

.dev-library__subtitle {
    font-family: var(--font-sans);
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.95em;
}

/* ── Featured hero (CivNode Press) ──────────────────────────────────────── */

.devlib-featured {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 32px;
    align-items: center;
    margin: 24px 0 28px;
    padding: 22px 26px;
    background: color-mix(in srgb, var(--accent) 5%, var(--bg-elevated, var(--bg-secondary)));
    border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.devlib-featured__cover {
    display: block;
    aspect-ratio: 2 / 3;
    overflow: hidden;
    border-radius: var(--radius-sm, 4px);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition);
}

.devlib-featured__cover:hover {
    transform: translateY(-2px);
}

.devlib-featured__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.devlib-featured__body {
    min-width: 0;
}

.devlib-featured__eyebrow {
    font-family: var(--font-sans);
    font-size: 0.72em;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    display: block;
    margin-bottom: 4px;
}

.devlib-featured__title {
    font-family: var(--font-serif);
    font-size: 1.8em;
    font-weight: 500;
    margin: 0 0 4px;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.devlib-featured__subtitle {
    font-family: var(--font-sans);
    font-size: 0.92em;
    color: var(--text-secondary);
    margin: 0 0 10px;
}

.devlib-featured__blurb {
    font-family: var(--font-serif);
    font-size: 0.95em;
    line-height: 1.55;
    color: var(--text-primary);
    margin: 0 0 14px;
}

.devlib-featured__actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.devlib-featured__btn {
    font-family: var(--font-sans);
    font-size: 0.88em;
    padding: 8px 16px;
    border-radius: var(--radius-sm, 4px);
    text-decoration: none;
    transition: border-color var(--transition), background var(--transition), filter var(--transition);
    border: 1px solid var(--border);
    color: var(--text-primary);
    background: var(--bg-surface);
}

.devlib-featured__btn--primary {
    background: var(--accent);
    color: var(--text-on-accent, var(--bg-primary));
    border-color: var(--accent);
    font-weight: 600;
}

.devlib-featured__btn--primary:hover {
    filter: brightness(1.08);
}

.devlib-featured__btn--ghost:hover {
    border-color: var(--accent);
}

@media (max-width: 700px) {
    .devlib-featured {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .devlib-featured__cover {
        max-width: 180px;
        margin: 0 auto;
    }
    .devlib-featured__actions {
        justify-content: center;
    }
}

/* ── Filter chips ───────────────────────────────────────────────────────── */

.dev-library__filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 18px 0 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.dev-library__chip {
    font-family: var(--font-sans);
    font-size: 0.85em;
    padding: 5px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.dev-library__chip:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.dev-library__chip--active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--text-on-accent, var(--bg-primary));
}

/* ── Grid ───────────────────────────────────────────────────────────────── */

.dev-library__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 28px 24px;
}

.dev-library__card {
    cursor: pointer;
    transition: transform var(--transition);
    position: relative;
}

.dev-library__card:hover {
    transform: translateY(-2px);
}

.dev-library__card .lib-card-cover {
    position: relative;
    aspect-ratio: 2 / 3;
    overflow: hidden;
    border-radius: var(--radius-sm, 4px);
    background: var(--bg-surface);
    box-shadow: var(--shadow-md);
}

.dev-library__card .lib-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.dev-library__licence {
    position: absolute;
    top: 8px;
    right: 8px;
    font-family: var(--font-mono);
    font-size: 0.7em;
    padding: 2px 7px;
    background: color-mix(in srgb, var(--bg-primary) 85%, transparent);
    color: var(--text-primary);
    border-radius: 2px;
    border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
    letter-spacing: 0.03em;
}

.dev-library__card .lib-card-body {
    padding: 10px 2px 0;
}

.dev-library__card .lib-card-title {
    font-family: var(--font-serif);
    font-size: 1em;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 3px;
    line-height: 1.25;
    letter-spacing: -0.01em;
}

.dev-library__card .lib-card-author {
    font-family: var(--font-sans);
    font-size: 0.82em;
    color: var(--text-secondary);
    margin: 0;
}

.dev-library__tags {
    margin-top: 6px;
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
}

.dev-library__tag {
    font-family: var(--font-sans);
    font-size: 0.72em;
    padding: 1px 7px;
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    color: var(--text-muted);
    border-radius: 2px;
}

/* ── States ─────────────────────────────────────────────────────────────── */

.dev-library__loading,
.dev-library__empty,
.dev-library__error {
    font-family: var(--font-sans);
    color: var(--text-muted);
    padding: 32px;
    text-align: center;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.dev-library__error {
    color: var(--danger);
}

@media (max-width: 600px) {
    .dev-library {
        padding: 16px;
    }
    .dev-library__grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 18px 14px;
    }
}