.brands-page {
    background-color: #F5F1E8;
    padding-bottom: var(--spacing-xl);
}

.brands-hero {
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
}

.brands-hero-content {
    max-width: 1120px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.2fr);
    gap: var(--spacing-lg);
    align-items: center;
}

.brands-hero-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-xs);
}

.brands-hero-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    margin-bottom: var(--spacing-sm);
}

.brands-hero-subtitle {
    font-size: 1.05rem;
    color: var(--color-gray-medium);
    max-width: 420px;
}

.brands-hero-exlibris {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(10px);
    animation: fadeInUp 0.6s ease 0.3s forwards;
}

.exlibris-plaque {
    display: inline-block;
    padding: 0.8rem 1.2rem;
    border: 1px solid rgba(11, 28, 38, 0.12);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
}

.exlibris-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-gray-medium);
    margin-bottom: 0.2rem;
}

.exlibris-name {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 0.3rem;
}

.exlibris-stats {
    font-size: 0.75rem;
    color: var(--color-gray-medium);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.brands-hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.btn-primary-outline {
    border-radius: 999px;
    border: 1px solid var(--color-text-dark);
    padding: 0.7rem 1.6rem;
    font-size: 0.95rem;
    background-color: transparent;
    transition: background-color var(--transition-normal), color var(--transition-normal), transform var(--transition-normal);
}

.btn-primary-outline:hover {
    background-color: var(--color-text-dark);
    color: var(--color-white);
    transform: translateY(-1px);
}

.brands-hero-illustration {
    justify-self: stretch;
}

.book-spines {
    display: flex;
    gap: 8px;
    align-items: flex-end;
    height: 280px;
    position: relative;
    padding: 0 1rem;
}

.book-spine {
    flex: 1;
    border-radius: 10px 10px 4px 4px;
    background: linear-gradient(180deg, #FDFBF6 0%, #E2D7C6 100%);
    box-shadow: 0 14px 28px rgba(0,0,0,0.08);
    position: relative;
    overflow: hidden;
    opacity: 0.4;
    transition: opacity 0.3s ease, transform 0.3s ease;
    will-change: transform;
}

/* Hauteurs différentes pour effet rayonnage */
.book-spine:nth-child(1) { height: 65%; }
.book-spine:nth-child(2) { height: 85%; }
.book-spine:nth-child(3) { height: 70%; }
.book-spine:nth-child(4) { height: 90%; }
.book-spine:nth-child(5) { height: 75%; }
.book-spine:nth-child(6) { height: 80%; }
.book-spine:nth-child(7) { height: 68%; }
.book-spine:nth-child(8) { height: 88%; }

.book-spine:nth-child(2n) {
    background: linear-gradient(180deg, #F7EFE6 0%, #D8C9B7 100%);
}

.book-spine:nth-child(3n) {
    background: linear-gradient(180deg, #F9F5EF 0%, #D6C6B3 100%);
}

.book-spine:nth-child(4n) {
    background: linear-gradient(180deg, #FAF8F2 0%, #E8DDD0 100%);
}

/* Parallax léger au scroll */
@media (prefers-reduced-motion: no-preference) {
    .book-spines {
        transform: translateZ(0);
    }
    
    .book-spine:nth-child(odd) {
        transform: translateY(0);
        transition: transform 0.1s ease-out;
    }
}

.book-spine::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10%;
    bottom: 10%;
    width: 6px;
    background: linear-gradient(90deg, rgba(0,0,0,0.12), transparent);
}

.book-spine::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 0%, rgba(255,255,255,0.5), transparent 55%);
    opacity: 0.7;
}

.brands-toolbar {
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.brands-toolbar-inner {
    max-width: 1120px;
    margin: 0 auto;
    background-color: rgba(255,255,255,0.9);
    border-radius: 999px;
    padding: 0.7rem 1.2rem;
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 2.5fr) minmax(0, 1.2fr);
    gap: 0.8rem;
    align-items: center;
    box-shadow: 0 14px 30px rgba(0,0,0,0.04);
}

.brands-toolbar-search input {
    width: 100%;
    border-radius: 999px;
    border: 1px solid var(--color-gray-light);
    padding: 0.65rem 1rem;
    font-size: 0.95rem;
    background-color: #FBF8F3;
}

.brands-toolbar-filters {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.4rem;
    overflow-x: auto;
}

.chip-filter {
    border-radius: 999px;
    border: 1px solid transparent;
    padding: 0.4rem 0.9rem;
    font-size: 0.85rem;
    background-color: #F5F1E8;
    color: var(--color-text-dark);
    opacity: 0.8;
    transition: background-color var(--transition-fast), color var(--transition-fast), opacity var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.chip-filter:hover {
    opacity: 1;
}

.chip-filter.active {
    background-color: var(--color-saffron);
    color: var(--color-white);
    border-color: var(--color-saffron);
    opacity: 1;
}

.brands-toolbar-right {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 0.8rem;
}

.brands-toolbar-right select {
    border-radius: 999px;
    border: 1px solid var(--color-gray-light);
    padding: 0.45rem 0.9rem;
    font-size: 0.85rem;
    background-color: #FBF8F3;
}

.brands-toolbar-counter {
    font-size: 0.85rem;
    color: var(--color-gray-medium);
}

.brands-toolbar-result {
    max-width: 1120px;
    margin: 0.6rem auto 0;
    font-size: 0.85rem;
    color: var(--color-gray-medium);
}

.brands-grid-wrapper {
    max-width: 1120px;
    margin: var(--spacing-lg) auto 0;
    padding: 0 var(--spacing-md);
}

.brands-skeleton-grid,
.brands-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--spacing-md);
    position: relative;
}

/* Étagères sous chaque rangée */
.brands-grid::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-image: repeating-linear-gradient(
        to bottom,
        transparent 0,
        transparent calc(260px + var(--spacing-md) - 1px),
        rgba(11, 28, 38, 0.06) calc(260px + var(--spacing-md) - 1px),
        rgba(11, 28, 38, 0.06) calc(260px + var(--spacing-md))
    );
    pointer-events: none;
    z-index: 0;
}

.brands-grid > * {
    position: relative;
    z-index: 1;
}

.book-skeleton {
    height: 260px;
    border-radius: 14px;
    background: linear-gradient(90deg, #E8E0D2 25%, #F3EBDF 37%, #E8E0D2 63%);
    background-size: 400% 100%;
    animation: skeleton-shimmer 1.2s infinite;
}

@keyframes skeleton-shimmer {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

.brands-empty {
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.brands-empty-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    margin-bottom: var(--spacing-xs);
}

.brands-empty-text {
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-sm);
}

.btn-secondary {
    border-radius: 999px;
    border: 1px solid var(--color-text-dark);
    padding: 0.7rem 1.6rem;
    font-size: 0.95rem;
    background-color: transparent;
    transition: background-color var(--transition-normal), color var(--transition-normal), transform var(--transition-normal);
}

.btn-secondary:hover {
    background-color: var(--color-text-dark);
    color: var(--color-white);
    transform: translateY(-1px);
}

.book-card {
    position: relative;
    width: 100%;
    text-align: left;
    background: transparent;
    padding: 0;
    perspective: 900px;
    outline: none;
}

.book-card-inner {
    position: relative;
    height: 260px;
    border-radius: 14px;
    padding: 1.2rem 1.2rem 1rem 1.4rem;
    background: linear-gradient(180deg, #FAF6EE 0%, #F0E4D5 100%);
    box-shadow: 0 14px 30px rgba(0,0,0,0.04);
    overflow: hidden;
    transform-origin: center center;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), 
                box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1), 
                background 0.25s ease;
    /* Grain texture */
    background-image: 
        linear-gradient(180deg, #FAF6EE 0%, #F0E4D5 100%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(0,0,0,0.02) 2px,
            rgba(0,0,0,0.02) 4px
        );
}

/* Reliure à gauche (tranche du livre) */
.book-card-inner::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 12px;
    background: linear-gradient(
        90deg,
        hsl(var(--spine-hue, 30), 40%, 25%) 0%,
        hsl(var(--spine-hue, 30), 40%, 35%) 50%,
        hsl(var(--spine-hue, 30), 40%, 25%) 100%
    );
    box-shadow: 
        inset -2px 0 4px rgba(0,0,0,0.15),
        inset 2px 0 2px rgba(255,255,255,0.1);
    border-radius: 14px 0 0 14px;
    z-index: 1;
}

/* Pages à droite (2 lignes fines) */
.book-card-inner::after {
    content: '';
    position: absolute;
    right: 0;
    top: 20%;
    bottom: 20%;
    width: 1px;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(0,0,0,0.08) 20%,
        rgba(0,0,0,0.08) 80%,
        transparent 100%
    );
    z-index: 0;
}

/* Signet saffron (ruban) - visible au hover/focus */
.book-card::marker,
.book-card-mark {
    display: none;
}

.book-card-mark {
    position: absolute;
    left: -2px;
    top: 15%;
    width: 4px;
    height: 30px;
    background: linear-gradient(180deg, var(--color-saffron, #E8A87C) 0%, #D4A574 100%);
    border-radius: 0 3px 3px 0;
    opacity: 0;
    transform: translateX(-100%) translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(232, 168, 124, 0.3);
}

.book-card:hover .book-card-mark,
.book-card:focus .book-card-mark {
    opacity: 1;
    transform: translateX(0) translateY(0);
}

.book-card-header {
    margin-left: 0.8rem;
}

.book-card-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.75rem;
    color: var(--color-gray-medium);
    margin-bottom: 0.2rem;
}

.book-card-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
}

.book-card-footer {
    position: absolute;
    left: 1.8rem;
    right: 1.4rem;
    bottom: 1.2rem;
}

.book-card-chapters {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.book-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-bottom: 0.6rem;
}

.tag-chip {
    font-size: 0.75rem;
    border-radius: 999px;
    padding: 0.25rem 0.7rem;
    background: rgba(0,0,0,0.06);
    color: var(--color-text-dark);
    opacity: 0.85;
    transition: opacity 0.2s ease;
}

.book-card-exlibris {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-gray-medium);
    text-align: right;
    opacity: 0.5;
    font-weight: 400;
}

.book-card:hover .book-card-inner {
    transform: perspective(900px) rotateY(-6deg) translateY(-4px);
    box-shadow: 
        0 22px 50px rgba(0,0,0,0.16),
        0 0 0 1px rgba(255,255,255,0.1) inset,
        0 0 30px rgba(232, 168, 124, 0.1);
}

.book-card:hover .book-card-title {
    opacity: 1;
}

.book-card:hover .tag-chip {
    opacity: 1;
}

/* Effet "livre qui s'ouvre" au clic */
.book-card-opening .book-card-inner {
    transform: perspective(900px) rotateY(-8deg) scaleX(1.05) translateY(-6px);
    box-shadow: 
        0 26px 60px rgba(0,0,0,0.22),
        0 0 0 2px rgba(255,255,255,0.15) inset,
        0 0 40px rgba(232, 168, 124, 0.15);
    background: linear-gradient(180deg, #FFFBF5 0%, #F5EDE0 100%);
}

.book-card-opening .book-card-mark {
    opacity: 1;
    transform: translateX(0) translateY(0);
}

/* Effet "faded" pour les autres livres */
.book-card-faded {
    opacity: 0.15;
    filter: blur(1px);
    pointer-events: none;
}

.book-card-faded .book-card-inner {
    transition: opacity 0.3s ease, filter 0.3s ease;
}

.book-card-faded:hover .book-card-inner {
    transform: none;
}

/* Effet ripple papier au clic */
.book-card.paper-ripple .book-card-inner {
    animation: paperRipple 0.3s ease;
}

@keyframes paperRipple {
    0% {
        box-shadow: 0 14px 30px rgba(0,0,0,0.04);
    }
    50% {
        box-shadow: 0 14px 30px rgba(0,0,0,0.08), 0 0 0 8px rgba(232, 168, 124, 0.1);
    }
    100% {
        box-shadow: 0 14px 30px rgba(0,0,0,0.04);
    }
}

@media (max-width: 1024px) {
    .brands-hero-content {
        grid-template-columns: minmax(0, 1fr);
    }

    .brands-toolbar-inner {
        border-radius: 18px;
        grid-template-columns: minmax(0, 1fr);
    }

    .brands-toolbar-right {
        justify-content: space-between;
    }

    .brands-skeleton-grid,
    .brands-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .brands-hero {
        padding-top: var(--spacing-lg);
    }

    .brands-hero-title {
        font-size: 2.1rem;
    }

    .brands-hero-ctas {
        flex-direction: column;
    }

    .brands-toolbar-inner {
        padding: 0.9rem 1rem;
    }

    .brands-skeleton-grid,
    .brands-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 520px) {
    .brands-skeleton-grid,
    .brands-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}