.binder-page {
    background: var(--bg-color);
    padding-top: 7rem;
}

.binder-hero {
    align-items: flex-start;
    display: flex;
    flex-direction: column;
    padding: 5rem 0 8rem;
}

.binder-intro {
    max-width: 34rem;
    margin: 1.75rem 0 0;
    color: var(--secondary-color);
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    line-height: 1.55;
}

.section-label {
    color: var(--accent-color);
    font-family: var(--code-font);
    font-size: 0.9rem;
    letter-spacing: 0;
    margin-bottom: 0.75rem;
}

.binder-section {
    background: var(--surface);
    border-radius: var(--shape-extra-large);
    padding: 5rem 0;
}

.binder-section + .binder-section {
    background: var(--bg-color);
}

.binder-container {
    max-width: 1240px;
}

.slab-grid {
    align-items: start;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: clamp(1.5rem, 3vw, 2.5rem);
}

.binder-empty {
    background: var(--card-bg);
    border: 1px solid var(--outline-variant);
    border-radius: var(--shape-large) var(--shape-small) var(--shape-large) var(--shape-large);
}

.slab-card {
    display: grid;
    gap: 1rem;
    min-height: 100%;
    transition: transform 0.3s var(--expressive-ease);
}

.slab-card:hover,
.slab-card:focus-within {
    transform: translateY(-5px);
}

.slab-image-frame {
    align-items: center;
    aspect-ratio: 0.72;
    background: color-mix(in srgb, var(--surface-highest) 70%, transparent);
    border: 1px solid var(--outline-variant);
    border-radius: var(--shape-small);
    display: flex;
    justify-content: center;
    margin: 0;
    overflow: hidden;
    padding: clamp(0.75rem, 2vw, 1.25rem);
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.slab-card:hover .slab-image-frame,
.slab-card:focus-within .slab-image-frame {
    border-color: var(--accent-color);
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
}

.slab-image-frame img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.slab-content {
    display: grid;
    gap: 0.35rem;
    padding: 0 0.15rem;
}

.slab-content h3,
.binder-empty h3 {
    color: var(--text-color);
    font-family: var(--heading-font);
    font-size: 1.2rem;
    font-weight: 740;
    line-height: 1.15;
    margin: 0;
}

.slab-content p,
.binder-empty p {
    color: var(--secondary-color);
    font-size: 0.95rem;
    margin: 0;
}

.slab-meta {
    border-top: 1px solid var(--outline-variant);
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    margin: 0.75rem 0 0;
    padding-top: 0.75rem;
}

.slab-meta div {
    min-width: 4.25rem;
}

.slab-meta dt {
    color: var(--secondary-color);
    font-family: var(--code-font);
    font-size: 0.7rem;
    margin: 0 0 0.1rem;
    text-transform: uppercase;
}

.slab-meta dd {
    color: var(--text-color);
    font-size: 0.86rem;
    margin: 0;
}

.card-placeholder {
    align-items: center;
    color: var(--secondary-color);
    display: flex;
    font-family: var(--code-font);
    height: 100%;
    justify-content: center;
    min-height: 12rem;
    padding: 1rem;
    text-align: center;
}

.binder-empty {
    padding: 2rem;
}

@media (max-width: 900px) {
    .binder-hero {
        align-items: center;
        padding: 3rem 0 4rem;
        text-align: center;
    }

    .binder-hero .container-header {
        text-align: center;
    }

    .binder-intro {
        max-width: 22rem;
        margin-inline: auto;
    }
}

@media (max-width: 640px) {
    .binder-page {
        padding-top: 5.5rem;
    }

    .binder-section {
        border-radius: var(--shape-large);
        padding: 3rem 0;
    }

    .slab-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 2.25rem;
    }

    .slab-card:hover,
    .slab-card:focus-within {
        transform: none;
    }

    .slab-image-frame {
        aspect-ratio: 0.72;
        background: transparent;
        border: 0;
        max-width: 220px;
        margin: 0 auto;
        padding: 0;
        width: 100%;
    }

    .slab-image-frame img {
        height: 100%;
        width: 100%;
        object-fit: contain;
    }

    .slab-content {
        margin: 0 auto;
        max-width: 220px;
        text-align: center;
    }

    .slab-card {
        gap: 0.85rem;
    }

    .slab-content h3 {
        font-size: 1rem;
    }

    .slab-content p {
        font-size: 0.85rem;
    }

    .slab-meta {
        justify-content: center;
    }

    .slab-meta div {
        min-width: auto;
    }

    .slab-meta dd {
        line-height: 1.2;
    }
}

@media (max-width: 430px) {
    .slab-grid {
        gap: 1.5rem 0.9rem;
    }

    .slab-image-frame,
    .slab-content {
        max-width: 170px;
    }

    .slab-content h3 {
        font-size: 0.92rem;
    }

    .slab-content p {
        font-size: 0.78rem;
    }

    .slab-meta {
        gap: 0.45rem 0.55rem;
        margin-top: 0.55rem;
        padding-top: 0.55rem;
    }

    .slab-meta dt {
        font-size: 0.62rem;
    }

    .slab-meta dd {
        font-size: 0.74rem;
        line-height: 1.2;
    }
}