/**
 * Luna - CSS Part 3: Footer, Pages & Responsive
 */

/* ================================
   FOOTER
   ================================ */
.footer {
    background-color: var(--color-text-primary);
    color: white;
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer__brand {
    max-width: 300px;
}

.footer__logo {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    letter-spacing: 0.15em;
    margin-bottom: var(--space-lg);
}

.footer__logo-img {
    height: 80px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer__description {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.footer__social {
    display: flex;
    gap: var(--space-md);
}

.footer__social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.footer__social-link:hover {
    background-color: var(--color-accent);
}

.footer__social-link svg {
    width: 18px;
    height: 18px;
}

/* ================================
   COLLECTIONS SECTION
   ================================ */
.collections {
    background-color: var(--color-background-alt);
}

.collections__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.collection-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-2xl) var(--space-xl);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.collection-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--color-accent);
}

.collection-card__icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
}

.collection-card__title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.collection-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.collection-card__link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-accent);
    transition: all var(--transition-fast);
}

.collection-card:hover .collection-card__link {
    letter-spacing: 0.05em;
}

@media (max-width: 768px) {
    .collections__grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .collection-card {
        padding: var(--space-xl);
    }
}

.footer__title {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-lg);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__link {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

.footer__bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
}

/* ================================
   PAGE HEADER
   ================================ */
.page-header {
    padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-3xl);
    text-align: center;
    background-color: var(--color-background-alt);
}

.page-header__title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-md);
}

.page-header__breadcrumb {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.page-header__breadcrumb a:hover {
    color: var(--color-accent);
}

.page-header__breadcrumb span {
    color: var(--color-text-secondary);
}

/* ================================
   PRODUCT DETAIL
   ================================ */
.product-detail {
    padding-top: calc(var(--header-height) + var(--space-2xl));
}

.product-detail__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.product-gallery {
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
}

.product-gallery__main {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: var(--radius-md);
    background-color: var(--color-background-alt);
    margin-bottom: var(--space-md);
}

.product-gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-gallery__thumbs {
    display: flex;
    gap: var(--space-sm);
}

.product-gallery__thumb {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
    border: 2px solid transparent;
}

.product-gallery__thumb.active,
.product-gallery__thumb:hover {
    opacity: 1;
    border-color: var(--color-accent);
}

.product-gallery__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info__category {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.product-info__title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-md);
}

.product-info__price {
    font-size: var(--text-2xl);
    font-weight: 500;
    margin-bottom: var(--space-lg);
}

.product-info__description {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.product-info__meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    padding: var(--space-lg);
    background-color: var(--color-background-alt);
    border-radius: var(--radius-md);
}

.product-info__meta-item {
    display: flex;
    gap: var(--space-sm);
    font-size: var(--text-sm);
}

.product-info__meta-label {
    color: var(--color-text-muted);
    min-width: 100px;
}

.product-info__meta-value {
    font-weight: 500;
}

.product-actions {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.quantity-input {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.quantity-input button {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
}

.quantity-input button:hover {
    color: var(--color-text-primary);
}

.quantity-input input {
    width: 50px;
    height: 44px;
    text-align: center;
    border: none;
    font-size: var(--text-base);
    font-weight: 500;
}

.quantity-input input:focus {
    outline: none;
}

/* ================================
   CART & CHECKOUT
   ================================ */
.cart-page,
.checkout-page {
    padding-top: calc(var(--header-height) + var(--space-2xl));
    min-height: 80vh;
}

.cart-grid,
.checkout-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-3xl);
    align-items: start;
}

.cart-items,
.checkout-form {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.cart-item {
    display: grid;
    grid-template-columns: 100px 1fr auto auto;
    gap: var(--space-lg);
    align-items: center;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item__image {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: var(--color-background-alt);
}

.cart-item__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item__info h4 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-xs);
}

.cart-item__price {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.cart-item__total {
    font-size: var(--text-lg);
    font-weight: 500;
    min-width: 100px;
    text-align: right;
}

.cart-item__remove {
    color: var(--color-text-muted);
}

.cart-item__remove:hover {
    color: var(--color-error);
}

.cart-summary,
.checkout-summary {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
}

.cart-summary__title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
}

.cart-summary__row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-md);
    font-size: var(--text-sm);
}

.cart-summary__row.total {
    font-size: var(--text-lg);
    font-weight: 600;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
    margin-top: var(--space-lg);
}

/* Forms */
.checkout-form {
    padding: var(--space-xl);
}

.checkout-form__section {
    margin-bottom: var(--space-xl);
}

.checkout-form__title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border-light);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group--full {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--text-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Bank Info */
.bank-info {
    background-color: var(--color-accent-light);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
}

.bank-info__title {
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.bank-info__row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
    font-size: var(--text-sm);
}

.bank-info__label {
    color: var(--color-text-secondary);
}

.bank-info__value {
    font-weight: 500;
    font-family: monospace;
}

/* Order Success */
.order-success {
    padding-top: calc(var(--header-height) + var(--space-4xl));
    text-align: center;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.order-success__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-success);
    border-radius: var(--radius-full);
    color: white;
}

.order-success__icon svg {
    width: 40px;
    height: 40px;
}

.order-success__title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-md);
}

.order-success__message {
    color: var(--color-text-secondary);
    max-width: 500px;
    margin: 0 auto var(--space-xl);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-4xl) var(--space-xl);
}

.empty-state__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background-alt);
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
}

.empty-state__icon svg {
    width: 36px;
    height: 36px;
}

.empty-state__title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

.empty-state__description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

/* ================================
   RESPONSIVE
   ================================ */
@media (max-width: 1024px) {
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-2xl);
    }

    .product-detail__grid {
        gap: var(--space-2xl);
    }

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

    .cart-summary,
    .checkout-summary {
        position: static;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    h1 {
        font-size: var(--text-3xl);
    }

    h2 {
        font-size: var(--text-2xl);
    }

    h3 {
        font-size: var(--text-xl);
    }

    .section {
        padding: var(--space-2xl) 0;
    }

    .hero {
        height: 70vh;
        min-height: 500px;
    }

    .hero__title {
        font-size: var(--text-3xl);
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .product-card__content {
        padding: var(--space-md);
    }

    .product-card__title {
        font-size: var(--text-base);
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }

    .footer__brand {
        max-width: none;
    }

    .footer__social {
        justify-content: center;
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--space-md);
    }

    .product-detail__grid {
        grid-template-columns: 1fr;
    }

    .product-gallery {
        position: static;
    }

    .cart-item {
        grid-template-columns: 80px 1fr;
        gap: var(--space-md);
    }

    .newsletter__form {
        flex-direction: column;
    }

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

    .page-header {
        padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-xl);
    }

    .page-header__title {
        font-size: var(--text-2xl);
    }
}

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

    .product-actions {
        flex-direction: column;
    }

    .product-actions .btn {
        width: 100%;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* ================================
   PRODUCTS PAGE LAYOUT
   ================================ */
.products-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.products-sidebar__group {
    background-color: var(--color-surface);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.products-sidebar__title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 500;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-primary);
}

.products-sidebar__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.products-sidebar__link {
    display: block;
    padding: var(--space-sm);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: var(--text-sm);
}

.products-sidebar__link:hover {
    color: var(--color-accent);
    background-color: var(--color-background-alt);
    padding-left: var(--space-md);
}

.products-sidebar__link.active {
    color: var(--color-accent);
    background-color: var(--color-accent-light);
    font-weight: 500;
}

/* Subcategory list */
.products-sidebar__sublist {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.products-sidebar__link--sub {
    padding-left: var(--space-lg, 1.25rem);
    font-size: var(--text-xs, 0.8rem);
}

.products-sidebar__sublist .products-sidebar__sublist .products-sidebar__link--sub {
    padding-left: var(--space-xl, 1.75rem);
}

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

    .products-sidebar {
        margin-bottom: var(--space-xl);
    }
}

/* ================================
   PRODUCT DETAIL ENHANCEMENTS
   ================================ */

/* Emotion text (short_description as italic intro) */
.product-info__emotion {
    font-family: var(--font-accent, Georgia, serif);
    font-style: italic;
    font-size: var(--text-lg, 1.125rem);
    color: var(--color-text-secondary, #6B5E54);
    line-height: 1.6;
    margin-bottom: var(--space-xl, 1.5rem);
}

/* Technical specs grid */
.product-info__specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md, 1rem);
    margin-bottom: var(--space-xl, 1.5rem);
    padding: var(--space-lg, 1.25rem);
    background: var(--color-surface, #FAF9F7);
    border-radius: var(--radius-md, 8px);
}

.product-info__spec-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 0.5rem);
}

.product-info__spec-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.product-info__spec-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--color-accent, #C4A77D);
}

.product-info__spec-label {
    font-size: var(--text-xs, 0.75rem);
    color: var(--color-text-muted, #9B8F85);
    display: block;
}

.product-info__spec-value {
    font-size: var(--text-sm, 0.875rem);
    font-weight: 500;
    color: var(--color-text-primary, #2C2420);
}

/* Care notes section */
.product-info__care {
    margin-top: var(--space-xl, 1.5rem);
    padding: var(--space-lg, 1.25rem);
    background: var(--color-surface, #FAF9F7);
    border-radius: var(--radius-md, 8px);
    border-left: 3px solid var(--color-accent, #C4A77D);
}

.product-info__care-title {
    font-size: var(--text-sm, 0.875rem);
    font-weight: 600;
    color: var(--color-text-primary, #2C2420);
    margin-bottom: var(--space-sm, 0.5rem);
    display: flex;
    align-items: center;
    gap: var(--space-xs, 0.25rem);
}

.product-info__care-text {
    font-size: var(--text-sm, 0.875rem);
    color: var(--color-text-secondary, #6B5E54);
    line-height: 1.7;
}

/* Footer: new 3-column layout */
.footer__grid--new {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-3xl, 3rem);
    margin-bottom: var(--space-3xl, 3rem);
}

.footer__story {
    font-family: var(--font-accent, Georgia, serif);
    font-style: italic;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm, 0.875rem);
    line-height: 1.8;
    margin-bottom: var(--space-lg, 1.25rem);
}

/* Instagram gradient button */
.footer__social-link--instagram {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm, 0.5rem);
    padding: 10px 20px;
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    color: white;
    border-radius: var(--radius-md, 8px);
    font-size: var(--text-sm, 0.875rem);
    font-weight: 500;
    text-decoration: none;
    transition: opacity 0.3s, transform 0.3s;
}

.footer__social-link--instagram:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.footer__social-link--instagram svg {
    width: 18px;
    height: 18px;
}

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

    .footer__grid--new {
        grid-template-columns: 1fr;
        gap: var(--space-xl, 1.5rem);
    }
}