/* ========================================
   Reset & Base
   ======================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', -apple-system, sans-serif;
    --color-black: #111;
    --color-dark: #1a1a1a;
    --color-gray-900: #222;
    --color-gray-700: #555;
    --color-gray-500: #888;
    --color-gray-300: #ccc;
    --color-gray-100: #f5f5f5;
    --color-white: #fff;
    --color-accent: #c0392b;
    --max-width: 1200px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-black);
    background-color: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s;
}

a:hover {
    opacity: 0.7;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: 12px 32px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    border-radius: 0;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    text-align: center;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 13px;
}

.btn-outline-white {
    border: 1.5px solid var(--color-white);
    color: var(--color-white);
    background: transparent;
}

.btn-outline-white:hover {
    background: var(--color-white);
    color: var(--color-black);
    opacity: 1;
}

.btn-white {
    background: var(--color-white);
    color: var(--color-black);
}

.btn-white:hover {
    background: var(--color-gray-100);
    opacity: 1;
}

.btn-outline-dark {
    border: 1.5px solid var(--color-black);
    color: var(--color-black);
    background: transparent;
}

.btn-outline-dark:hover {
    background: var(--color-black);
    color: var(--color-white);
    opacity: 1;
}

.btn-dark {
    background: var(--color-dark);
    color: var(--color-white);
}

.btn-dark:hover {
    background: var(--color-black);
    opacity: 1;
}

/* ========================================
   Navbar
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    padding: 12px 0;
    box-shadow: 0 1px 0 rgba(0,0,0,0.08);
}

.navbar.scrolled .nav-logo,
.navbar.scrolled .nav-menu a,
.navbar.scrolled .nav-social a,
.navbar.scrolled .nav-cart-button {
    color: var(--color-black);
}

.navbar.scrolled .nav-cart-button {
    border-color: rgba(17, 17, 17, 0.35);
}

.navbar.scrolled .nav-cart-button:hover {
    background: var(--color-black);
    color: var(--color-white);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--color-white);
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.nav-logo-img {
    height: 52px;
    width: 52px;
    object-fit: contain;
    transition: transform 0.3s ease, height 0.3s ease, width 0.3s ease;
}

.nav-logo:hover .nav-logo-img {
    transform: scale(1.05);
}

.navbar.scrolled .nav-logo-img {
    height: 40px !important;
    width: 40px !important;
}

.nav-logo-text {
    display: inline-block;
    line-height: 1;
}

@media (max-width: 480px) {
    .nav-logo-text {
        display: none;
    }
}

.nav-cart-button {
    width: 34px;
    height: 34px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    transition: all 0.3s;
}

.nav-cart-button:hover {
    background: var(--color-white);
    color: var(--color-black);
    opacity: 1;
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-menu a {
    font-size: 13px;
    font-weight: 400;
    color: var(--color-white);
    letter-spacing: 0.5px;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-menu a:hover {
    opacity: 1;
}

.nav-social {
    display: flex;
    gap: 16px;
}

.nav-social a {
    color: var(--color-white);
    display: flex;
    align-items: center;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 22px;
    height: 1.5px;
    background: var(--color-white);
    transition: all 0.3s;
}

.navbar.scrolled .nav-toggle span {
    background: var(--color-black);
}

/* ========================================
   Hero
   ======================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=1600&q=80') center/cover no-repeat;
    color: var(--color-white);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    padding: 0 24px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 400;
    letter-spacing: 2px;
    margin-bottom: 16px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 16px;
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.hero-scroll:hover {
    opacity: 1;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-8px); }
    60% { transform: translateX(-50%) translateY(-4px); }
}

/* ========================================
   Sections
   ======================================== */
.section {
    padding: 100px 0;
}

.section-white {
    background: var(--color-white);
}

.section-light {
    background: var(--color-gray-100);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 400;
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-gray-700);
    font-size: 15px;
    font-weight: 300;
    max-width: 640px;
    margin: 0 auto 60px;
    line-height: 1.7;
}

.section-cta {
    text-align: center;
    margin-top: 50px;
}

/* ========================================
   Fine Art Grid
   ======================================== */
.art-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.art-card {
    background: var(--color-white);
    transition: transform 0.3s;
}

.art-card-link {
    display: block;
    color: inherit;
}

.art-card-link:hover {
    opacity: 1;
}

.art-card:hover {
    transform: translateY(-4px);
}

.art-image {
    aspect-ratio: 3/4;
    overflow: hidden;
}

.art-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
    filter: grayscale(30%);
}

.art-card:hover .art-image img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.art-info {
    padding: 16px 4px;
}

.art-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 4px;
}

.art-header h3 {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
}

.art-price {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
}

.art-meta {
    font-size: 12px;
    color: var(--color-gray-500);
    margin-bottom: 8px;
}

.art-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 8px;
    border-top: 1px solid var(--color-gray-100);
}

.art-edition {
    font-size: 11px;
    color: var(--color-gray-500);
}

/* ========================================
   Publicações
   ======================================== */
.pub-list {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.pub-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.pub-item-reverse {
    direction: rtl;
}

.pub-item-reverse > * {
    direction: ltr;
}

.pub-image {
    aspect-ratio: 4/5;
    overflow: hidden;
}

.pub-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(80%);
    transition: filter 0.6s;
}

.pub-image:hover img {
    filter: grayscale(0%);
}



.pub-content {
    padding: 20px 0;
}

.pub-meta-top {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-gray-500);
    margin-bottom: 12px;
}

.pub-content h3 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    margin-bottom: 8px;
}

.pub-description-sub {
    font-size: 14px;
    color: var(--color-gray-700);
    font-style: italic;
    margin-bottom: 16px;
}

.pub-text {
    font-size: 14px;
    color: var(--color-gray-700);
    line-height: 1.7;
    margin-bottom: 24px;
}

.pub-buy {
    display: flex;
    align-items: center;
    gap: 20px;
}

.pub-price {
    font-size: 22px;
    font-weight: 600;
}

/* ========================================
   Publicações — Catálogo
   ======================================== */

/* Barra de filtro horizontal (acima da lista) */
.pub-filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px 0;
    border-top: 1px solid #ededed;
    border-bottom: 1px solid #ededed;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.pub-filter-form {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    flex: 1;
    min-width: 0;
}

.pub-filter-label {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    white-space: nowrap;
    color: var(--color-black);
    flex-shrink: 0;
}

.pub-filter-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.pub-filter-chip {
    display: flex;
    align-items: center;
    font-size: 13px;
    cursor: pointer;
    padding: 6px 14px;
    border: 1px solid #ddd;
    background: var(--color-white);
    transition: border-color 0.2s, background 0.2s, color 0.2s;
    user-select: none;
}

.pub-filter-chip input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.pub-filter-chip:has(input:checked) {
    border-color: var(--color-black);
    background: var(--color-black);
    color: var(--color-white);
}

.pub-filter-divider {
    width: 1px;
    height: 20px;
    background: #ddd;
    flex-shrink: 0;
}

.pub-filter-sort {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.pub-filter-sort label {
    font-size: 12px;
    color: var(--color-gray-700);
    white-space: nowrap;
}

.pub-filter-sort select {
    font-size: 13px;
    border: none;
    border-bottom: 1px solid #ccc;
    background: transparent;
    padding: 2px 4px;
    cursor: pointer;
    outline: none;
    color: var(--color-black);
}

.pub-catalog-list {
    display: flex;
    flex-direction: column;
    gap: 56px;
}

.pub-catalog-item {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 52px;
    align-items: start;
    padding-bottom: 56px;
    border-bottom: 1px solid var(--color-gray-100);
}

.pub-catalog-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.pub-catalog-image {
    display: block;
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--color-gray-100);
}

.pub-catalog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(60%);
    transition: filter 0.5s, transform 0.5s;
}

.pub-catalog-image:hover img {
    filter: grayscale(0%);
    transform: scale(1.03);
}

.pub-catalog-content {
    padding-top: 8px;
}

.pub-catalog-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    font-size: 13px;
    color: var(--color-gray-500);
}

.pub-catalog-sep {
    color: var(--color-gray-300);
}

.pub-type-badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 3px 8px;
    border: 1px solid currentColor;
}

.pub-type-badge.pub-type-livro { color: #333; border-color: #333; }
.pub-type-badge.pub-type-artigo { color: #1a6b5a; border-color: #1a6b5a; }
.pub-type-badge.pub-type-catalogo { color: #7a4a1a; border-color: #7a4a1a; }

.pub-catalog-title {
    font-family: var(--font-serif);
    font-size: 26px;
    font-weight: 400;
    margin-bottom: 8px;
    line-height: 1.2;
}

.pub-catalog-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

.pub-catalog-title a:hover { color: var(--color-accent); }

.pub-catalog-subtitle {
    font-size: 14px;
    color: var(--color-gray-700);
    font-style: italic;
    margin-bottom: 14px;
}

.pub-catalog-text {
    font-size: 14px;
    color: var(--color-gray-700);
    line-height: 1.75;
    margin-bottom: 24px;
}

.pub-catalog-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.pub-catalog-price {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-black);
}

/* ========================================
   Publicações — Detalhe
   ======================================== */

.pub-detail-gallery figure img,
.pub-detail-gallery figure video {
    width: 100%;
    max-height: 600px;
    object-fit: cover;
}

.pub-detail-subtitle {
    font-size: 16px;
    font-style: italic;
    color: var(--color-gray-700);
    margin-bottom: 8px;
}

.pub-detail-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 24px;
    margin: 24px 0;
    padding: 20px 0;
    border-top: 1px solid var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-100);
}

.pub-detail-meta div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pub-detail-meta dt {
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-gray-500);
}

.pub-detail-meta dd {
    font-size: 14px;
    color: var(--color-black);
    font-weight: 500;
}

.pub-detail-external-note {
    font-size: 12px;
    color: var(--color-gray-500);
    margin-top: 8px;
}

/* Related publications grid */
.pub-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.pub-related-card {
    text-decoration: none;
    color: inherit;
    display: block;
}

.pub-related-image {
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--color-gray-100);
    margin-bottom: 16px;
}

.pub-related-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(60%);
    transition: filter 0.5s, transform 0.5s;
}

.pub-related-card:hover .pub-related-image img {
    filter: grayscale(0%);
    transform: scale(1.03);
}

.pub-related-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pub-related-info h3 {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 400;
}

/* ========================================
   Expedições Grid
   ======================================== */
.exp-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.exp-card {
    background: var(--color-white);
    border: 1px solid #eee;
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.exp-card:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.exp-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.exp-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.exp-card:hover .exp-image img {
    transform: scale(1.05);
}

.exp-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--color-accent);
    color: var(--color-white);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 1.5px;
    padding: 4px 12px;
    z-index: 1;
}

.exp-badge-dark {
    background: var(--color-dark);
}

.exp-info {
    padding: 24px;
}

.exp-info h3 {
    font-family: var(--font-sans);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.exp-text {
    font-size: 13px;
    color: var(--color-gray-700);
    line-height: 1.7;
    margin-bottom: 20px;
}

.exp-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.exp-detail {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--color-gray-700);
}

.exp-detail svg {
    flex-shrink: 0;
    color: var(--color-gray-500);
}

.exp-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.exp-price {
    font-size: 22px;
    font-weight: 700;
}

.exp-installment {
    font-size: 11px;
    color: var(--color-gray-500);
    margin-top: 8px;
}

/* ========================================
   Conteúdo Educativo
   ======================================== */
.section-edu {
    position: relative;
    padding: 100px 0;
    background: url('https://images.unsplash.com/photo-1464822759023-fed622ff2c3b?w=1600&q=80') center/cover no-repeat;
    color: var(--color-white);
    text-align: center;
}

.edu-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
}

.edu-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 24px;
}

.edu-content h2 {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 400;
    margin-bottom: 16px;
}

.edu-content p {
    font-size: 14px;
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 32px;
    opacity: 0.9;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: 60px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 60px;
}

.footer-about h4 {
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    margin-bottom: 16px;
}

.footer-about p {
    font-size: 13px;
    color: var(--color-gray-300);
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    color: var(--color-gray-300);
    display: flex;
    align-items: center;
}

.footer-social a:hover {
    color: var(--color-white);
    opacity: 1;
}

.footer-nav h5,
.footer-newsletter h5 {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.footer-nav ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav a {
    font-size: 13px;
    color: var(--color-gray-300);
}

.footer-nav a:hover {
    color: var(--color-white);
    opacity: 1;
}

.footer-newsletter p {
    font-size: 13px;
    color: var(--color-gray-300);
    line-height: 1.7;
    margin-bottom: 16px;
}

.newsletter-form {
    display: flex;
    gap: 8px;
}

.newsletter-form input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #444;
    background: transparent;
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 13px;
}

.newsletter-form input::placeholder {
    color: var(--color-gray-500);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-white);
}

/* ========================================
   Sobre — Hero
   ======================================== */
.navbar-dark-initial .nav-logo,
.navbar-dark-initial .nav-menu a,
.navbar-dark-initial .nav-social a,
.navbar-dark-initial .nav-cart-button {
    color: var(--color-white);
}

.navbar-dark-initial.scrolled .nav-logo,
.navbar-dark-initial.scrolled .nav-menu a,
.navbar-dark-initial.scrolled .nav-social a,
.navbar-dark-initial.scrolled .nav-cart-button {
    color: var(--color-black);
}

.sobre-hero {
    position: relative;
    height: 50vh;
    min-height: 360px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('https://images.unsplash.com/photo-1470071459604-3b5ec3a7fe05?w=1600&q=80') center/cover no-repeat;
    color: var(--color-white);
}

.sobre-hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
}

.sobre-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.sobre-hero-content h1 {
    font-family: var(--font-serif);
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 400;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.sobre-hero-content p {
    font-size: 16px;
    font-weight: 300;
    opacity: 0.9;
}

/* ========================================
   Sobre — Bio
   ======================================== */
.sobre-bio {
    padding: 100px 0;
    background: var(--color-white);
}

.bio-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 60px;
    align-items: start;
}

.bio-portrait {
    position: sticky;
    top: 100px;
}

.bio-portrait img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    filter: grayscale(40%);
    transition: filter 0.6s;
}

.bio-portrait:hover img {
    filter: grayscale(0%);
}

.bio-portrait-caption {
    margin-top: 12px;
    font-size: 12px;
    color: var(--color-gray-500);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.bio-text h2 {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 400;
    margin-bottom: 8px;
}

.bio-tagline {
    font-size: 15px;
    color: var(--color-gray-500);
    font-style: italic;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid #eee;
}

.bio-body p {
    font-size: 15px;
    color: var(--color-gray-700);
    line-height: 1.85;
    margin-bottom: 20px;
}

.bio-body strong {
    color: var(--color-black);
    font-weight: 500;
}

/* ========================================
   Sobre — Credenciais
   ======================================== */
.sobre-credentials {
    padding: 80px 0;
    background: var(--color-gray-100);
}

.credentials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.credential-item {
    padding: 32px 16px;
}

.credential-icon {
    color: var(--color-gray-700);
    margin-bottom: 16px;
}

.credential-item h3 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    margin-bottom: 6px;
}

.credential-item p {
    font-size: 13px;
    color: var(--color-gray-500);
    line-height: 1.6;
}

/* ========================================
   Sobre — Exposições (Timeline)
   ======================================== */
.sobre-exhibitions {
    padding: 100px 0;
    background: var(--color-white);
}

.timeline {
    max-width: 700px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 40px;
    padding: 28px 0;
    border-bottom: 1px solid #eee;
    transition: background 0.3s;
}

.timeline-item:first-child {
    border-top: 1px solid #eee;
}

.timeline-item:hover {
    background: var(--color-gray-100);
    padding-left: 20px;
    padding-right: 20px;
    margin-left: -20px;
    margin-right: -20px;
}

.timeline-year {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    color: var(--color-gray-300);
    min-width: 80px;
    line-height: 1.2;
}

.timeline-content h4 {
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.timeline-content p {
    font-size: 13px;
    color: var(--color-gray-500);
}

/* ========================================
   Sobre — Prêmios
   ======================================== */
.sobre-awards {
    padding: 100px 0;
    background: var(--color-gray-100);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.award-item {
    background: var(--color-white);
    padding: 36px 28px;
    text-align: center;
    border: 1px solid #eee;
    transition: box-shadow 0.3s, transform 0.3s;
}

.award-item:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    transform: translateY(-4px);
}

.award-logo {
    color: var(--color-gray-700);
    margin-bottom: 16px;
}

.award-item h4 {
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.award-item p {
    font-size: 13px;
    color: var(--color-gray-500);
    line-height: 1.6;
}

/* ========================================
   Sobre — CTA
   ======================================== */
.sobre-cta {
    position: relative;
    padding: 100px 0;
    background: url('https://images.unsplash.com/photo-1486870591958-9b9d0d1dda99?w=1600&q=80') center/cover no-repeat;
    color: var(--color-white);
    text-align: center;
}

.sobre-cta-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.sobre-cta-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 24px;
}

.sobre-cta-content h2 {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 400;
    margin-bottom: 16px;
}

.sobre-cta-content p {
    font-size: 15px;
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 32px;
    opacity: 0.9;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .art-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pub-catalog-item {
        grid-template-columns: 300px 1fr;
        gap: 40px;
    }

    .pub-related-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .footer-about {
        grid-column: 1 / -1;
    }

    .bio-grid {
        grid-template-columns: 320px 1fr;
        gap: 40px;
    }

    .credentials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .awards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        padding: 80px 40px;
        gap: 24px;
        transition: right 0.3s;
        box-shadow: -4px 0 20px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        color: var(--color-black);
        font-size: 16px;
    }

    .nav-social {
        display: none;
    }

    .nav-right {
        margin-left: auto;
        margin-right: 10px;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(4px, -4px);
    }

    .section {
        padding: 60px 0;
    }

    .art-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .pub-item,
    .pub-item-reverse {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .pub-item-reverse {
        direction: ltr;
    }

    .pub-filter-bar {
        gap: 16px;
    }

    .pub-filter-divider {
        display: none;
    }

    .pub-catalog-item {
        grid-template-columns: 200px 1fr;
        gap: 28px;
    }

    .pub-related-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .exp-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .bio-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .bio-portrait {
        position: static;
        max-width: 400px;
        margin: 0 auto;
    }

    .bio-text {
        text-align: left;
    }

    .credentials-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .awards-grid {
        grid-template-columns: 1fr;
    }

    .timeline-item {
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .art-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .pub-buy {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .pub-catalog-item {
        grid-template-columns: 1fr;
    }

    .pub-catalog-image {
        aspect-ratio: 16/9;
    }

    .pub-related-grid {
        grid-template-columns: 1fr;
    }

    .pub-detail-meta {
        grid-template-columns: 1fr;
    }

    .newsletter-form {
        flex-direction: column;
    }
}

/* ========================================
   Fine Art Store
   ======================================== */
.fineart-hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    padding: 140px 0 90px;
    background: url("https://images.unsplash.com/photo-1464822759023-fed622ff2c3b?w=1600&q=80") center/cover no-repeat;
    color: var(--color-white);
}

.fineart-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(0, 0, 0, 0.72), rgba(0, 0, 0, 0.45));
}

.fineart-hero-content {
    position: relative;
    z-index: 1;
    max-width: 760px;
}

.fineart-kicker {
    display: inline-block;
    margin-bottom: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
    padding-bottom: 6px;
}

.fineart-hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 16px;
}

.fineart-hero p {
    font-size: 16px;
    line-height: 1.75;
    opacity: 0.92;
    max-width: 640px;
    margin-bottom: 28px;
}

.fineart-hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.fineart-intro {
    padding-top: 70px;
    padding-bottom: 70px;
}

.fineart-info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.fineart-info-card {
    border: 1px solid #ececec;
    padding: 24px;
    background: var(--color-white);
}

.fineart-info-card h3 {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 10px;
}

.fineart-info-card p {
    color: var(--color-gray-700);
    font-size: 14px;
    line-height: 1.75;
    margin: 0;
}

.store-hero {
    padding: 140px 0 60px;
    background: var(--color-gray-100);
}

.store-hero-small {
    padding-bottom: 40px;
}

.store-hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(32px, 5vw, 54px);
    font-weight: 400;
    margin-bottom: 12px;
}

.store-hero p {
    max-width: 700px;
    color: var(--color-gray-700);
    margin-bottom: 20px;
}

.alerts {
    margin-bottom: 20px;
}

.alert-item {
    background: var(--color-gray-100);
    border-left: 3px solid var(--color-black);
    padding: 10px 12px;
    margin-bottom: 8px;
}

/* ========================================
   Fine Art Collection
   ======================================== */
.collection-intro {
    padding: 130px 0 36px;
    background: var(--color-white);
}

.collection-eyebrow {
    text-transform: uppercase;
    letter-spacing: 2.2px;
    font-size: 11px;
    color: var(--color-gray-500);
    margin-bottom: 12px;
}

.collection-intro h1 {
    font-family: var(--font-serif);
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 14px;
    max-width: 720px;
}

.collection-lead {
    color: var(--color-gray-700);
    max-width: 720px;
    line-height: 1.8;
}

.collection-section {
    padding: 24px 0 90px;
    background: var(--color-white);
}

.collection-layout {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
}

.collection-filters {
    position: sticky;
    top: 96px;
    align-self: start;
    width: 100%;
    max-width: 200px;
    box-sizing: border-box;
    background: var(--color-white);
    border-top: 1px solid #ededed;
    padding: 8px 0 16px;
    z-index: 1;
}

.collection-filters * {
    box-sizing: border-box;
}

.collection-filters .filter-form,
.collection-filters .filter-group,
.collection-filters .filter-options,
.collection-filters .filter-check {
    max-width: 100%;
    min-width: 0;
}

.collection-filters .filter-check span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.filter-form {
    display: grid;
    gap: 6px;
}

.filter-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding: 14px 0 6px;
}

.filter-header h2 {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin: 0;
}

.filter-clear {
    font-size: 12px;
    color: var(--color-gray-500);
    text-decoration: underline;
}

.filter-group {
    border-top: 1px solid #ededed;
    padding: 14px 0;
}

.filter-group summary {
    list-style: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.filter-group summary::-webkit-details-marker {
    display: none;
}

.filter-group summary::after {
    content: '+';
    font-size: 18px;
    color: var(--color-gray-500);
    transition: transform 0.2s ease;
}

.filter-group[open] summary::after {
    content: '–';
}

.filter-options {
    margin-top: 12px;
    display: grid;
    gap: 8px;
}

.filter-check {
    display: grid;
    grid-template-columns: 16px 1fr auto;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--color-gray-700);
    cursor: pointer;
}

.filter-check input {
    accent-color: var(--color-black);
}

.filter-check em {
    color: var(--color-gray-500);
    font-style: normal;
    font-size: 12px;
}

.filter-check-color {
    grid-template-columns: 16px 14px 1fr auto;
}

.filter-color-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid rgba(0, 0, 0, 0.1);
    background: var(--color-gray-100);
}

.filter-check-azul .filter-color-dot {
    background: #1e4e8c;
}

.filter-check-preto-e-branco .filter-color-dot {
    background: linear-gradient(135deg, #111 50%, #fff 50%);
    border-color: #999;
}

.filter-check-colorido .filter-color-dot {
    background: conic-gradient(from 90deg, #d33, #d80, #fc0, #2c8, #29c, #84d, #d33);
}

.filter-check-verde .filter-color-dot {
    background: #2c7a4d;
}

.filter-price-range {
    color: var(--color-gray-500);
    font-size: 12px;
    margin: 4px 0 14px;
}

.price-slider {
    display: grid;
    gap: 6px;
    margin-bottom: 14px;
}

.price-slider-labels {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    font-size: 12px;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.price-slider-labels strong {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-black);
    text-transform: none;
    letter-spacing: 0;
}

.price-slider input[type="range"] {
    --price-progress: 100%;
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: linear-gradient(
        to right,
        var(--color-black) 0%,
        var(--color-black) var(--price-progress),
        #ddd var(--price-progress),
        #ddd 100%
    );
    outline: none;
    border-radius: 0;
    cursor: pointer;
}

.price-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-white);
    border: 2px solid var(--color-black);
    cursor: pointer;
    transition: transform 0.15s ease;
}

.price-slider input[type="range"]::-webkit-slider-thumb:hover,
.price-slider input[type="range"]:focus::-webkit-slider-thumb {
    transform: scale(1.15);
}

.price-slider input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-white);
    border: 2px solid var(--color-black);
    cursor: pointer;
}

.price-slider-bounds {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--color-gray-500);
}


.btn-block {
    display: inline-flex;
    width: 100%;
    justify-content: center;
}

.filter-apply {
    margin-top: 14px;
}

.collection-main {
    min-width: 0;
}

.collection-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 24px;
    border-bottom: 1px solid #ededed;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.collection-count {
    font-size: 13px;
    color: var(--color-gray-700);
}

.collection-sort {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.collection-sort select {
    font-family: var(--font-sans);
    font-size: 13px;
    border: 1px solid #ddd;
    padding: 8px 28px 8px 12px;
    background: var(--color-white);
    text-transform: none;
    letter-spacing: 0;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 40px 26px;
    min-width: 0;
}

.collection-card {
    color: inherit;
    display: block;
}

.collection-card:hover {
    opacity: 1;
}

.collection-image {
    aspect-ratio: 4 / 5;
    overflow: hidden;
    background: var(--color-gray-100);
    margin-bottom: 16px;
    position: relative;
}

.collection-image-horizontal {
    aspect-ratio: 5 / 4;
}

.collection-image-quadrado {
    aspect-ratio: 1 / 1;
}

.collection-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease, filter 0.8s ease;
}

.collection-card:hover .collection-image img {
    transform: scale(1.04);
    filter: saturate(1.06);
}

.collection-info {
    display: grid;
    gap: 4px;
}

.collection-artist {
    color: var(--color-gray-500);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.1px;
}

.collection-info h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 400;
}

.collection-price {
    color: var(--color-gray-700);
    font-size: 13px;
    margin: 0;
}

.collection-price strong {
    color: var(--color-black);
    font-weight: 600;
}

.collection-tag {
    color: var(--color-gray-500);
    font-size: 11px;
    letter-spacing: 0.6px;
    text-transform: uppercase;
}

.collection-themes,
.product-themes {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
}

.product-themes {
    margin: 4px 0 22px;
}

.theme-pill {
    display: inline-block;
    padding: 4px 10px;
    border: 1px solid #d8d8d8;
    border-radius: 999px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    color: var(--color-gray-700);
    background: var(--color-white);
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

a.theme-pill:hover {
    background: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
    opacity: 1;
}

.collection-empty {
    border: 1px dashed #ddd;
    padding: 60px 30px;
    text-align: center;
    display: grid;
    gap: 14px;
    justify-items: center;
}

.collection-empty h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 400;
}

.collection-empty p {
    color: var(--color-gray-700);
    max-width: 420px;
}

/* ========================================
   Fine Art Product Detail
   ======================================== */
.product-page {
    padding: 110px 0 90px;
    background: var(--color-white);
}

.product-breadcrumb {
    font-size: 12px;
    color: var(--color-gray-500);
    margin-bottom: 28px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.product-breadcrumb a {
    color: var(--color-gray-700);
}

.product-breadcrumb span:last-child {
    color: var(--color-black);
}

.product-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(380px, 0.85fr);
    gap: clamp(36px, 6vw, 80px);
    align-items: start;
}

.product-gallery {
    background: var(--color-gray-100);
}

.product-gallery figure {
    margin: 0;
}

.product-gallery img {
    width: 100%;
    height: auto;
    display: block;
}

.product-gallery figcaption {
    padding: 14px 18px;
    font-size: 12px;
    color: var(--color-gray-500);
    border-top: 1px solid #ededed;
    background: var(--color-white);
}

.product-summary {
    position: sticky;
    top: 96px;
    display: grid;
    gap: 6px;
}

.product-type {
    color: var(--color-gray-500);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.4px;
}

.product-summary h1 {
    font-family: var(--font-serif);
    font-size: clamp(38px, 5vw, 60px);
    font-weight: 400;
    line-height: 1.05;
    margin: 6px 0 4px;
}

.product-artist {
    font-size: 15px;
    color: var(--color-gray-700);
    margin-bottom: 26px;
}

.product-form {
    display: grid;
    gap: 22px;
    margin-bottom: 22px;
}

.chip-group {
    border: 0;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px;
}

.chip-group legend {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-gray-500);
}

.chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip-list-stack {
    flex-direction: column;
    align-items: stretch;
}

.chip {
    appearance: none;
    background: var(--color-white);
    border: 1px solid #d8d8d8;
    color: var(--color-black);
    font-family: var(--font-sans);
    font-size: 13px;
    padding: 10px 16px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    text-align: left;
}

.chip-wide {
    padding: 12px 18px;
}

.chip:hover:not(.chip-disabled) {
    border-color: var(--color-black);
}

.chip-active {
    background: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

.chip-disabled {
    color: #b8b8b8;
    border-color: #ededed;
    cursor: not-allowed;
    text-decoration: line-through;
}

.product-price-block {
    border-top: 1px solid #ededed;
    border-bottom: 1px solid #ededed;
    padding: 18px 0 16px;
    display: grid;
    gap: 4px;
}

.product-price-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--color-gray-500);
}

.product-price {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 500;
    margin: 2px 0;
}

.product-price-installments {
    font-size: 13px;
    color: var(--color-gray-700);
}

.product-stock {
    font-size: 12px;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.product-buy-button {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 14px;
    letter-spacing: 1.2px;
}

.product-buy-button[disabled] {
    background: #aaa;
    color: var(--color-white);
    cursor: not-allowed;
}

.product-availability {
    color: #b04040;
    font-size: 13px;
}

.product-assurances {
    border-top: 1px solid #ededed;
    margin-top: 4px;
    padding-top: 18px;
    display: grid;
    gap: 8px;
}

.product-assurances li {
    color: var(--color-gray-700);
    font-size: 13px;
    line-height: 1.6;
}

.product-assurances span {
    color: var(--color-black);
    margin-right: 8px;
}

.product-accordions {
    border-top: 1px solid #ededed;
    margin-top: 20px;
}

.product-accordions details {
    border-bottom: 1px solid #ededed;
    padding: 14px 0;
}

.product-accordions summary {
    list-style: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-accordions summary::-webkit-details-marker {
    display: none;
}

.product-accordions summary::after {
    content: '+';
    color: var(--color-gray-500);
    font-size: 18px;
    transition: transform 0.2s ease;
}

.product-accordions details[open] summary::after {
    content: '–';
}

.product-accordions details > div {
    padding-top: 12px;
    color: var(--color-gray-700);
    font-size: 14px;
    line-height: 1.75;
}

.product-accordions ul {
    padding-left: 18px;
    list-style: disc;
    display: grid;
    gap: 4px;
}

.product-story {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid #ededed;
}

.product-story h2 {
    font-family: var(--font-serif);
    font-size: 30px;
    font-weight: 400;
    margin-bottom: 14px;
}

.product-story p {
    color: var(--color-gray-700);
    line-height: 1.85;
}

.product-related {
    margin-top: 70px;
    padding-top: 40px;
    border-top: 1px solid #ededed;
}

.product-related-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}

.product-related-head h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
}

.product-related-head a {
    font-size: 13px;
    color: var(--color-gray-700);
    text-decoration: underline;
}

.collection-grid-related {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (max-width: 1180px) {
    .collection-layout {
        grid-template-columns: 180px minmax(0, 1fr);
        gap: 32px;
    }
    .collection-filters {
        max-width: 180px;
    }
    .collection-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .collection-grid-related {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .product-layout {
        grid-template-columns: 1fr;
    }
    .product-summary {
        position: static;
    }
    .product-story {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 960px) {
    .collection-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .collection-filters {
        position: static;
        max-height: none;
        overflow: visible;
        border-top: 0;
        padding: 0;
    }
    .filter-form {
        background: var(--color-gray-100);
        padding: 18px 20px;
        border-radius: 2px;
    }
    .filter-header {
        padding-top: 0;
    }
}

@media (max-width: 760px) {
    .collection-layout {
        grid-template-columns: 1fr;
    }
    .collection-filters {
        position: static;
    }
    .collection-grid {
        grid-template-columns: 1fr;
    }
    .collection-grid-related {
        grid-template-columns: 1fr;
    }
    .collection-toolbar {
        align-items: flex-start;
    }
    .product-buy-button {
        padding: 14px;
    }
}

.store-grid {
    display: grid;
    gap: 30px;
}

.store-card {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 26px;
    border: 1px solid #ececec;
    padding: 20px;
    background: var(--color-white);
}

.store-image {
    aspect-ratio: 3 / 4;
    overflow: hidden;
}

.store-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.store-card:hover .store-image img {
    transform: scale(1.04);
}

.store-meta-top {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--color-gray-500);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.store-dot {
    width: 4px;
    height: 4px;
    background: var(--color-gray-500);
    border-radius: 50%;
}

.store-content h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    margin-bottom: 8px;
}

.store-content p {
    color: var(--color-gray-700);
    margin-bottom: 16px;
}

.variant-table {
    width: 100%;
    border-collapse: collapse;
}

.variant-table th,
.variant-table td {
    border-bottom: 1px solid #efefef;
    padding: 12px 8px;
    text-align: left;
    font-size: 13px;
    vertical-align: middle;
}

.variant-table th {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-gray-500);
}

.variant-table tbody tr:hover {
    background: #fbfbfb;
}

.variant-table .btn {
    white-space: nowrap;
}

.cart-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 24px;
    align-items: start;
}

.checkout-box {
    border: 1px solid #efefef;
    padding: 16px;
}

.checkout-box h3 {
    margin-bottom: 10px;
}

.checkout-box label {
    display: block;
    font-size: 13px;
    margin-bottom: 6px;
}

.checkout-box input {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border: 1px solid #ddd;
}

.checkout-box .btn {
    width: 100%;
}

.empty-state {
    font-size: 16px;
    color: var(--color-gray-700);
}

@media (max-width: 900px) {
    .fineart-hero {
        min-height: 58vh;
        padding: 130px 0 70px;
    }

    .fineart-info-grid {
        grid-template-columns: 1fr;
    }

    .store-card {
        grid-template-columns: 1fr;
    }

    .cart-layout {
        grid-template-columns: 1fr;
    }

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

    .product-layout,
    .product-details-grid {
        grid-template-columns: 1fr;
    }

    .product-summary {
        position: static;
    }

    .product-gallery,
    .product-gallery img {
        min-height: 460px;
    }
}

@media (max-width: 560px) {
    .collection-grid {
        grid-template-columns: 1fr;
    }

    .variant-option {
        grid-template-columns: auto 1fr;
    }

    .variant-option b {
        grid-column: 2;
    }
}

/* ========================================
   Contato
   ======================================== */
.contact-hero {
    position: relative;
    min-height: 48vh;
    display: flex;
    align-items: center;
    background: url("https://images.unsplash.com/photo-1489515217757-5fd1be406fef?w=1600&q=80") center/cover no-repeat;
    color: var(--color-white);
    padding: 120px 0 70px;
}

.contact-hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}

.contact-hero-content {
    position: relative;
    z-index: 1;
}

.contact-hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(38px, 6vw, 62px);
    font-weight: 400;
    margin-bottom: 10px;
}

.contact-hero p {
    max-width: 650px;
    font-size: 16px;
    opacity: 0.9;
}

.contact-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 28px;
}

.contact-card {
    border: 1px solid #ececec;
    padding: 22px;
    background: var(--color-gray-100);
}

.contact-card h3 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    margin-bottom: 16px;
}

.contact-card p {
    margin-bottom: 16px;
    color: var(--color-gray-700);
    font-size: 14px;
}

.contact-form-wrap {
    border: 1px solid #ececec;
    padding: 30px;
}

.contact-form-wrap h2 {
    font-family: var(--font-serif);
    font-size: 34px;
    font-weight: 400;
    margin-bottom: 10px;
}

.contact-form-wrap > p {
    color: var(--color-gray-700);
    margin-bottom: 20px;
}

.contact-form label {
    display: block;
    font-size: 13px;
    margin-bottom: 6px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    border: 1px solid #ddd;
    padding: 12px 10px;
    margin-bottom: 14px;
    font-family: var(--font-sans);
    font-size: 14px;
    background: var(--color-white);
}

.contact-form textarea {
    resize: vertical;
    min-height: 130px;
}

@media (max-width: 900px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* ─── Expedições Catalog ─────────────────────────────────────── */

.exp-catalog-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.exp-type-tabs {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.exp-type-tab {
    font-size: 13px;
    font-family: var(--font-sans);
    padding: 6px 14px;
    border: 1px solid #ddd;
    background: transparent;
    cursor: pointer;
    color: var(--color-gray-700);
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    text-decoration: none;
    display: inline-block;
    border-radius: 2px;
}

.exp-type-tab:hover,
.exp-type-tab.active {
    background: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

.exp-grid-catalog {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.exp-grid-related {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.exp-closed {
    font-size: 14px;
    color: var(--color-gray-600);
    font-style: italic;
}

.exp-closed-lg {
    font-size: 16px;
    margin-top: 8px;
}

/* ─── Expedition Detail Page ─────────────────────────────────── */

.exp-detail-page {
    padding: 24px 0 80px;
}

.exp-detail-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin: 32px 0 56px;
    align-items: start;
}

.exp-detail-hero-image {
    position: relative;
    border-radius: 2px;
    overflow: hidden;
}

.exp-detail-hero-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
}

.exp-badge-lg {
    font-size: 12px;
    padding: 7px 14px;
    top: 16px;
    left: 16px;
}

.exp-detail-hero-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.exp-detail-hero-info h1 {
    font-family: var(--font-serif);
    font-size: 40px;
    font-weight: 400;
    line-height: 1.15;
    margin: 0;
}

.exp-detail-lead {
    font-size: 16px;
    line-height: 1.65;
    color: var(--color-gray-700);
    margin: 0;
}

.exp-detail-specs {
    display: flex;
    flex-direction: column;
    gap: 10px;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    padding: 16px 0;
    margin: 0;
}

.exp-spec {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--color-gray-700);
}

.exp-spec svg {
    flex-shrink: 0;
    color: var(--color-gray-500);
}

.exp-spec dt {
    font-weight: 600;
    color: var(--color-gray-900);
    min-width: 60px;
}

.exp-spec dd {
    margin: 0;
}

.exp-detail-price-block {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}

.exp-detail-price-label {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-gray-600);
}

.exp-detail-price {
    font-family: var(--font-serif);
    font-size: 34px;
    font-weight: 400;
}

.exp-detail-cta {
    display: inline-block;
    text-align: center;
    font-size: 15px;
    padding: 14px 28px;
    align-self: flex-start;
}

/* ─── Expedition Detail Body ─────────────────────────────────── */

.exp-detail-body {
    max-width: 820px;
    margin: 0 auto 60px;
}

.exp-detail-section {
    margin-bottom: 44px;
}

.exp-detail-section h2 {
    font-family: var(--font-serif);
    font-size: 26px;
    font-weight: 400;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.exp-itinerary {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.exp-itinerary-day h4 {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-gray-900);
    margin: 16px 0 6px;
    padding: 6px 12px;
    background: #f5f5f5;
    border-left: 3px solid var(--color-black);
}

.exp-itinerary-day:first-child h4 {
    margin-top: 0;
}

.exp-itinerary p {
    font-size: 14px;
    line-height: 1.65;
    color: var(--color-gray-700);
    margin: 0;
    padding-left: 12px;
}

.exp-itinerary-spacer {
    height: 8px;
}

.exp-detail-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.exp-checklist {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.exp-checklist li {
    font-size: 14px;
    color: var(--color-gray-700);
    padding-left: 22px;
    position: relative;
    line-height: 1.5;
}

.exp-checklist li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #2a7a2a;
    font-weight: 700;
}

.exp-checklist-req li::before {
    content: "•";
    color: var(--color-gray-500);
    font-weight: 400;
}

/* ─── Enrollment Form ────────────────────────────────────────── */

.exp-enrollment-section {
    border-top: 1px solid #eee;
    padding-top: 56px;
    margin-bottom: 60px;
}

.exp-enrollment-inner {
    max-width: 680px;
    margin: 0 auto;
}

.exp-enrollment-header {
    margin-bottom: 32px;
}

.exp-enrollment-header h2 {
    font-family: var(--font-serif);
    font-size: 30px;
    font-weight: 400;
    margin-bottom: 10px;
}

.exp-enrollment-header p {
    font-size: 15px;
    color: var(--color-gray-700);
    line-height: 1.6;
    margin-bottom: 6px;
}

.exp-enrollment-spots {
    font-size: 14px;
    color: var(--color-gray-600);
    margin-top: 8px !important;
}

.exp-enrollment-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.exp-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.exp-form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.exp-form-field label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-900);
}

.exp-form-field input,
.exp-form-field textarea {
    border: 1px solid #ddd;
    padding: 11px 12px;
    font-family: var(--font-sans);
    font-size: 14px;
    background: var(--color-white);
    width: 100%;
    box-sizing: border-box;
    transition: border-color 0.15s;
}

.exp-form-field input:focus,
.exp-form-field textarea:focus {
    outline: none;
    border-color: var(--color-black);
}

.exp-form-field textarea {
    resize: vertical;
    min-height: 110px;
}

.exp-form-submit {
    font-size: 15px;
    padding: 14px 28px;
    align-self: flex-start;
    border: none;
    cursor: pointer;
}

.exp-form-note {
    font-size: 12px;
    color: var(--color-gray-500);
    line-height: 1.5;
    margin: 0;
}

/* ─── Expedition responsive ──────────────────────────────────── */

@media (max-width: 1024px) {
    .exp-grid-catalog {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .exp-detail-hero {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .exp-detail-hero-info h1 {
        font-size: 30px;
    }

    .exp-detail-cols {
        grid-template-columns: 1fr;
    }

    .exp-form-row {
        grid-template-columns: 1fr;
    }

    .exp-grid-catalog,
    .exp-grid-related {
        grid-template-columns: 1fr;
    }

    .exp-enrollment-inner {
        max-width: 100%;
    }
}

/* ─── Conteúdo Gratuito (Publicações) ───────────────────────── */

.free-content-section {
    background: #f8f8f6;
    padding: 72px 0 80px;
    border-top: 1px solid #eee;
}

.free-content-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
}

.free-content-header h2 {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 400;
    margin: 8px 0 14px;
}

.free-content-lead {
    font-size: 16px;
    color: var(--color-gray-700);
    line-height: 1.65;
}

.free-content-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.free-card {
    background: var(--color-white);
    border: 1px solid #e8e8e8;
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: box-shadow 0.2s;
}

.free-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.07);
}

.free-card-icon {
    color: var(--color-gray-500);
}

.free-card-body {
    flex: 1;
}

.free-card-type {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-gray-500);
    display: block;
    margin-bottom: 8px;
}

.free-card-body h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 400;
    margin-bottom: 8px;
    line-height: 1.3;
}

.free-card-body p {
    font-size: 14px;
    color: var(--color-gray-700);
    line-height: 1.6;
    margin: 0;
}

.free-card-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-black);
    text-decoration: none;
    border-bottom: 1px solid var(--color-black);
    padding-bottom: 2px;
    align-self: flex-start;
    transition: opacity 0.15s;
}

.free-card-download:hover {
    opacity: 0.6;
}

@media (max-width: 768px) {
    .free-content-grid {
        grid-template-columns: 1fr;
    }
}

/* Form alerts (contact page messages) */
.form-alert {
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}
.form-alert-success {
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}
.form-alert-error {
    background: #fce4ec;
    color: #c62828;
    border: 1px solid #f48fb1;
}

/* ========================================
   Publicações — Look Inside (Preview)
   ======================================== */
.product-gallery.pub-detail-gallery {
    background: transparent;
}
.book-preview-card {
    background: var(--color-white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    padding: 28px;
    margin: 32px 0 0 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.book-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    gap: 16px;
}

.book-preview-title-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.book-preview-card .preview-title {
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--color-gray-800);
    margin: 0;
}

.book-preview-card .preview-subtitle {
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--color-gray-500);
    margin: 0;
}

.look-inside-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    padding: 10px 18px;
    border-radius: 6px;
    border: 1.5px solid var(--color-black);
    background: transparent;
    color: var(--color-black);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.look-inside-btn:hover {
    background: var(--color-black);
    color: var(--color-white);
}

.look-inside-btn svg {
    transition: transform 0.3s ease;
}

.look-inside-btn:hover svg {
    transform: scale(1.1);
}

.thumb-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 0;
}

.thumb-btn {
    position: relative;
    border: 3px solid var(--color-white);
    padding: 0;
    background: var(--color-white);
    cursor: pointer;
    display: block;
    width: 90px;
    height: 120px;
    border-radius: 4px;
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
}

/* Realistic page crease fold shadow for the book cover thumbnail */
.thumb-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0) 100%);
    pointer-events: none;
    transition: opacity 0.3s;
}

.thumb-btn:hover {
    transform: translateY(-6px) scale(1.04);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15), 0 4px 8px rgba(0, 0, 0, 0.05);
}

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

/* Zoom Hover Overlay */
.thumb-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.thumb-btn:hover .thumb-overlay {
    opacity: 1;
}

.thumb-overlay svg {
    transform: scale(0.8);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.thumb-btn:hover .thumb-overlay svg {
    transform: scale(1);
}

/* Lightbox Modal */
.preview-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: none; /* hidden by default */
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.preview-modal.active {
    display: flex;
    opacity: 1;
}

.preview-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.preview-modal-content-wrapper {
    position: relative;
    z-index: 1;
    width: 90vw;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.preview-modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.preview-modal-close:hover {
    background: var(--color-white);
    color: var(--color-black);
    transform: rotate(90deg);
}

.preview-modal-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.preview-slider-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    position: relative;
    margin-bottom: 24px;
}

.preview-slides {
    position: relative;
    width: 100%;
    max-width: 650px;
    height: 60vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.preview-slide {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: scale(0.97);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.preview-slide.active {
    display: flex;
    opacity: 1;
    transform: scale(1);
}

.preview-image-wrapper {
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    border: 6px solid var(--color-white);
    background: var(--color-white);
    border-radius: 2px;
    max-width: 100%;
    max-height: calc(60vh - 40px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Spine crease overlay on the modal view to make it look like a book */
.preview-image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 10px;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0) 100%);
    pointer-events: none;
}

.preview-slide img {
    max-width: 100%;
    max-height: calc(60vh - 52px);
    object-fit: contain;
    display: block;
}

.preview-slide .page-number {
    margin-top: 16px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
    font-family: var(--font-sans);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.slider-arrow {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    font-size: 28px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    user-select: none;
    z-index: 10;
}

.slider-arrow:hover {
    background: var(--color-white);
    color: var(--color-black);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.slider-arrow-prev {
    margin-right: 24px;
}

.slider-arrow-next {
    margin-left: 24px;
}

/* Horizontal navigation thumbnails inside modal (Amazon-style) */
.modal-thumb-navigator {
    width: 100%;
    max-width: 600px;
    margin-top: 12px;
    padding: 12px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Custom modern scrollbar for thumbnail strip */
.modal-thumb-navigator::-webkit-scrollbar {
    height: 4px;
}
.modal-thumb-navigator::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
}
.modal-thumb-navigator::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
}
.modal-thumb-navigator::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.4);
}

.modal-thumb-strip {
    display: flex;
    gap: 12px;
    padding: 4px;
}

.modal-nav-thumb-btn {
    background: none;
    border: 2px solid transparent;
    padding: 0;
    cursor: pointer;
    width: 48px;
    height: 64px;
    border-radius: 2px;
    overflow: hidden;
    opacity: 0.4;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.modal-nav-thumb-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.modal-nav-thumb-btn:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.modal-nav-thumb-btn.active {
    opacity: 1;
    border-color: var(--color-white);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.25);
}

@media (max-width: 768px) {
    .book-preview-card {
        padding: 20px;
    }

    .book-preview-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .look-inside-btn {
        width: 100%;
    }

    .thumb-grid {
        justify-content: flex-start;
        gap: 10px;
    }

    .thumb-btn {
        width: 76px;
        height: 102px;
    }

    .preview-slides {
        height: 50vh;
    }

    .preview-image-wrapper {
        max-height: calc(50vh - 30px);
    }

    .preview-slide img {
        max-height: calc(50vh - 42px);
    }

    .slider-arrow {
        position: absolute;
        bottom: -64px;
        width: 44px;
        height: 44px;
        font-size: 24px;
    }

    .slider-arrow-prev {
        left: 25%;
        margin-right: 0;
    }

    .slider-arrow-next {
        right: 25%;
        margin-left: 0;
    }

    .preview-modal-close {
        top: -45px;
        right: 10px;
    }

    .modal-thumb-navigator {
        margin-top: 80px; /* offset for slider arrow keys */
        max-width: 85vw;
    }
}