@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&family=Jost:wght@300;400;500;600&display=swap');

:root {
    --bg-color: #d6cfc7;
    /* Sepia main */
    --bg-light: #e6e1db;
    --bg-white: #f5f3f0;
    --text-color: #1a1a1a;
    --text-muted: #5a5a5a;
    --accent: #2c2c2c;
    --border: rgba(0, 0, 0, 0.1);

    --transit: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Jost', sans-serif;
    overflow-x: hidden;
}

body.modal-open {
    overflow: hidden;
}

.hidden {
    display: none !important;
}

.mt-4 {
    margin-top: 2rem;
}

.w-100 {
    width: 100%;
}

/* Buttons */
.btn {
    padding: 1.2rem 2rem;
    font-family: 'Jost', sans-serif;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: none;
    cursor: pointer;
    transition: all var(--transit);
}

.btn-primary {
    background: var(--text-color);
    color: var(--bg-color);
}

.btn-primary:hover:not(:disabled) {
    background: #000;
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--text-color);
    color: var(--text-color);
}

.btn-outline:hover {
    background: var(--text-color);
    color: var(--bg-color);
}

.text-btn {
    background: none;
    border: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    border-bottom: 1px solid currentColor;
    padding-bottom: 2px;
}

/* Header */
header {
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    z-index: 100;
    mix-blend-mode: difference;
    color: #fff;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

nav {
    display: flex;
    gap: 3rem;
}

nav a {
    color: inherit;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transit);
}

nav a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Hero */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.big-typography {
    position: absolute;
    font-family: 'Playfair Display', serif;
    font-size: 15vw;
    white-space: nowrap;
    color: var(--text-color);
    z-index: 1;
    mix-blend-mode: overlay;
    opacity: 0.7;
    pointer-events: none;
}

.center-image-container {
    width: 400px;
    height: 600px;
    overflow: hidden;
    z-index: 2;
    position: relative;
}

.center-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) contrast(1.2);
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1), filter 0.8s;
}

.center-image-container:hover .center-image {
    transform: scale(1.05);
    filter: grayscale(0%) contrast(1);
}

.collection-text {
    position: absolute;
    bottom: 50px;
    left: 5%;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    transform: rotate(-90deg);
    transform-origin: left bottom;
    z-index: 2;
}

.scroll-down {
    position: absolute;
    bottom: 50px;
    right: 5%;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Shop Section */
.shop-section {
    padding: 8rem 5%;
    background: var(--bg-light);
}

.section-title {
    margin-bottom: 5rem;
    text-align: center;
}

.section-title h2 {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 4rem 2rem;
}

.product-card {
    cursor: pointer;
}

.product-img-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--bg-color);
    margin-bottom: 1.5rem;
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transit);
}

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

.quick-add-btn {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-color);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.8rem;
    font-weight: 500;
    transform: translateY(100%);
    transition: transform var(--transit);
    border: none;
    backdrop-filter: blur(5px);
}

.product-card:hover .quick-add-btn {
    transform: translateY(0);
}

.quick-add-btn:hover {
    background: var(--text-color);
    color: white;
}

.product-info h3 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.product-price {
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
    color: var(--text-muted);
}

/* Cart Sidebar */
.cart-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transit);
}

.cart-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.cart-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 450px;
    max-width: 100vw;
    height: 100vh;
    background: var(--bg-white);
    z-index: 1000;
    transform: translateX(100%);
    transition: transform var(--transit);
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
}

.cart-sidebar.active {
    transform: translateX(0);
}

.cart-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-header h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 400;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    opacity: 0.5;
    transition: opacity 0.2s;
}

.close-btn:hover {
    opacity: 1;
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

.empty-cart-msg {
    text-align: center;
    color: var(--text-muted);
    margin-top: 2rem;
}

.cart-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.cart-item-img {
    width: 80px;
    height: 100px;
    object-fit: cover;
}

.cart-item-details {
    flex: 1;
}

.cart-item-title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.cart-item-price {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.qty-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid var(--border);
    width: fit-content;
    padding: 0.2rem 0.5rem;
}

.qty-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
}

.remove-item {
    background: none;
    border: none;
    color: var(--text-muted);
    text-decoration: underline;
    font-size: 0.8rem;
    margin-top: 1rem;
    cursor: pointer;
}

.cart-footer {
    padding: 2rem;
    border-top: 1px solid var(--border);
    background: var(--bg-white);
}

.cart-total-line {
    display: flex;
    justify-content: space-between;
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transit);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-white);
    width: 900px;
    max-width: 95vw;
    height: 600px;
    max-height: 90vh;
    position: relative;
    transform: scale(0.95);
    transition: transform var(--transit);
    overflow: hidden;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 10;
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 100%;
}

.modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-info {
    padding: 4rem;
    overflow-y: auto;
}

.modal-info h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 400;
}

.modal-info .price {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.modal-info .description {
    line-height: 1.6;
    margin-bottom: 3rem;
}

.size-selector .label {
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.sizes {
    display: flex;
    gap: 1rem;
}

.size-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    background: transparent;
    cursor: pointer;
    transition: all 0.2s;
}

.size-btn.active,
.size-btn:hover {
    border-color: var(--text-color);
    background: var(--text-color);
    color: white;
}

/* Checkout View */
.checkout-container {
    padding: 6rem 5% 4rem;
    min-height: 100vh;
    background: var(--bg-white);
}

.checkout-header {
    margin-bottom: 4rem;
    text-align: center;
}

.checkout-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

.checkout-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 6rem;
    max-width: 1200px;
    margin: 0 auto;
}

form h3 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

input {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
    background: transparent;
    font-family: 'Jost', sans-serif;
    font-size: 1rem;
    transition: border-color 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--text-color);
}

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

.payment-box {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
}

.checkout-summary-section {
    background: var(--bg-light);
    padding: 3rem;
}

.checkout-items {
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 2rem;
}

.checkout-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.summary-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.summary-line.total {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    color: var(--text-color);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
    vertical-align: middle;
    margin-left: 10px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Success View */
.success-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--bg-color);
}

.success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.success-container h2 {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

.order-number {
    font-family: monospace;
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-top: 2rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--text-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 2000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.back-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 2rem;
    background: var(--text-color);
    color: var(--bg-color);
    border: 1px solid var(--text-color);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.8rem;
    z-index: 10;
    transition: all 0.3s;
}

.back-btn:hover {
    background: transparent;
    color: var(--text-color);
}

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

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

    .modal-image {
        display: none;
    }

    .modal-info {
        padding: 2rem;
    }

    .center-image-container {
        width: 90vw;
        height: 60vh;
    }

    .big-typography {
        font-size: 25vw;
    }

    nav {
        display: none;
    }

    /* Kept simple for prototype, usually would add hamburger */
}