/* ==========================================================================
   Reading Listing Styles — Book index page
   Requires /styles.css as base
   ========================================================================== */

.reading-header {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 10rem var(--container-padding) var(--space-xl);
    animation: fadeUp 0.8s ease forwards;
}

.reading-header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 300;
    margin-bottom: var(--space-sm);
}

.reading-header p {
    font-size: 1.125rem;
    color: var(--color-ink-muted);
    max-width: 520px;
}

.book-list {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 var(--container-padding) var(--space-3xl);
    display: grid;
    gap: var(--space-lg);
}

.book-card {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: var(--space-lg);
    padding: var(--space-lg);
    border: 1px solid var(--color-border-light);
    background: var(--color-cream);
    transition: border-color var(--transition-fast);
}

.book-card:hover {
    border-color: var(--color-border);
}

.book-card-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 2px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.book-card-placeholder {
    width: 100%;
    aspect-ratio: 2 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border-light);
    border-radius: 2px;
    background: var(--color-parchment);
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 300;
    color: var(--color-stone);
}

.book-card-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.book-card-title {
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: var(--space-xs);
}

.book-card-subtitle {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 400;
    font-size: 0.95rem;
    color: var(--color-stone);
    margin-bottom: var(--space-sm);
}

.book-card-meta {
    font-size: 0.8rem;
    color: var(--color-stone);
    display: flex;
    gap: var(--space-md);
}

.book-card-excerpt {
    color: var(--color-ink-muted);
    font-size: 0.95rem;
    margin: var(--space-sm) 0 0;
}

/* ── Tag filter bar ── */
.tag-bar {
    max-width: 720px;
    margin: 0 auto var(--space-lg);
    padding: 0 var(--container-padding);
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-filter {
    font-family: var(--font-body);
    font-size: 0.8rem;
    padding: 0.4rem 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    background: var(--color-cream);
    color: var(--color-stone);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tag-filter:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.tag-filter.active {
    background: var(--color-ink);
    border-color: var(--color-ink);
    color: var(--color-cream);
}

/* ── Month/year headings ── */
.month-heading {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: 1.1rem;
    color: var(--color-stone);
    letter-spacing: 0.04em;
    padding-bottom: var(--space-xs);
    border-bottom: 1px solid var(--color-border-light);
    margin: 0;
}

.book-list .month-heading:not(:first-child) {
    margin-top: var(--space-md);
}

@media (max-width: 640px) {
    .book-card {
        grid-template-columns: 100px 1fr;
        gap: var(--space-md);
    }

    .reading-header {
        padding-top: 7rem;
    }
}