/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --gold: #D4AF37;
    --gold-light: #E8D5A3;
    --gold-dark: #B8941F;
    --black: #1a1a1a;
    --white: #ffffff;
    --gray-light: #f9f9f9;
    --gray: #e0e0e0;
    --gray-dark: #cccccc;
    --transition: all 0.3s ease;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 10px 40px rgba(212, 175, 55, 0.15);
}

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background-color: var(--white);
    color: var(--black);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.02) 0%, transparent 50%);
    background-attachment: fixed;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--black);
    text-decoration: none;
    letter-spacing: 3px;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
}

.logo-image {
    height: 150px;
    width: auto;
    transition: var(--transition);
    object-fit: contain;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--black);
    letter-spacing: 3px;
    margin-left: 0.5rem;
    font-family: serif;
    position: relative;
}

.logo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid transparent;
    border-top-color: var(--gold);
    border-bottom-color: var(--gold);
    opacity: 0;
    transition: var(--transition);
}

.logo:hover::before {
    opacity: 1;
}

.logo:hover {
    transform: translateY(-2px);
}

.logo:hover .logo-image {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--black);
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 1px;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--gold);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--gold);
}

.cart-icon {
    font-weight: 600;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--black);
    transition: var(--transition);
}

/* Main Content */
main {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Hero Section */
.hero {
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.08) 0%, rgba(255, 255, 255, 1) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    50% {
        transform: translateY(-30px) translateX(20px);
    }
}

.hero-content {
    text-align: center;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: 4rem;
    font-weight: 300;
    margin-bottom: 1rem;
    letter-spacing: 4px;
    line-height: 1.2;
    position: relative;
    display: inline-block;
}

.hero h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.hero .tagline {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    color: #666;
    font-style: italic;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    letter-spacing: 1px;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-family: inherit;
    display: inline-block;
}

.btn-primary {
    background-color: var(--black);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background-color: var(--gold);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

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

.btn-secondary:hover {
    background-color: var(--black);
    color: var(--white);
    transform: translateY(-2px);
}

/* Featured Section */
.featured-section {
    padding: 6rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    font-weight: 300;
    letter-spacing: 3px;
    position: relative;
    padding-bottom: 1.5rem;
}

.section-title::before {
    content: '✦';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: -20px;
    color: var(--gold);
    font-size: 1rem;
    opacity: 0.6;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

/* Artwork Grid */
.artwork-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.artwork-card {
    background-color: var(--white);
    border: 1px solid var(--gray);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    animation: fadeIn 0.6s ease-in;
    position: relative;
}

.artwork-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid var(--gold);
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
    pointer-events: none;
}

.artwork-card:hover::before {
    opacity: 0.3;
}

.artwork-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--gold-light);
}

.artwork-card::after {
    content: '';
    position: absolute;
    top: 10px;
    right: 10px;
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0;
    transition: var(--transition);
}

.artwork-card:hover::after {
    opacity: 1;
    transform: scale(1.2);
}

.artwork-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    background: linear-gradient(135deg, #f9f9f9 0%, #f0f0f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.artwork-image img {
    transition: transform 0.5s ease;
}

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

.artwork-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0) 0%, rgba(212, 175, 55, 0.1) 100%);
    opacity: 0;
    transition: var(--transition);
}

.artwork-card:hover .artwork-image::after {
    opacity: 1;
}

.artwork-info {
    padding: 1.5rem;
}

.artwork-title {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.artwork-price {
    font-size: 1.1rem;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
    padding-left: 1.5rem;
}

.artwork-price::before {
    content: '$';
    position: absolute;
    left: 0;
    color: var(--gold-dark);
    font-size: 0.9rem;
    opacity: 0.7;
}

.artwork-card .btn-primary {
    width: 100%;
    padding: 0.8rem;
    font-size: 0.9rem;
}

/* Gallery Page */
.gallery-header {
    text-align: center;
    padding: 4rem 0 2rem;
}

/* Collections Page */
.collections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.collection-card {
    position: relative;
    height: 400px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid var(--gray);
    transition: var(--transition);
}

.collection-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
}

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

.collection-card:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-hover);
    border-color: var(--gold-light);
}

.collection-card:hover .collection-overlay {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), rgba(212, 175, 55, 0.3));
}

.collection-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
}

.collection-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 2rem;
    color: var(--white);
}

.collection-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.collection-count {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Forms */
.form-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(249, 249, 249, 1) 100%);
    border-radius: 8px;
    border: 1px solid var(--gray);
    box-shadow: var(--shadow);
    position: relative;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light), var(--gold));
    border-radius: 8px 8px 0 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--gray);
    background-color: var(--white);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
    background-color: var(--white);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    text-align: center;
    display: none;
}

.success-message.show {
    display: block;
    animation: fadeIn 0.5s ease-in;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    animation: fadeIn 0.3s ease-in;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--white);
    padding: 2rem;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: slideUp 0.3s ease-out;
    border: 1px solid var(--gray);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light));
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.artwork-modal-content {
    max-width: 900px;
}

#checkout-modal .modal-content {
    text-align: center;
}

#checkout-modal h2 {
    color: var(--gold);
    margin-bottom: 1rem;
    font-size: 2rem;
    letter-spacing: 2px;
}

#checkout-modal p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
    color: #666;
}

#checkout-modal .modal-content::after {
    content: '✓';
    display: block;
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: var(--gold);
    border-radius: 50%;
    color: var(--white);
    font-size: 3rem;
    line-height: 80px;
    font-weight: bold;
}

.close, .close-checkout, .close-artwork {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    font-weight: bold;
    color: var(--black);
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.close:hover,
.close-checkout:hover,
.close-artwork:hover {
    color: var(--gold);
}

/* Cart */
#cart-items {
    margin: 1.5rem 0;
}

.cart-item {
    display: flex;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--gray);
}

.cart-item-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
}

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

.cart-item-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.cart-item-price {
    color: var(--gold);
    font-weight: 600;
}

.remove-item {
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

.remove-item:hover {
    color: #d32f2f;
}

.cart-total {
    text-align: right;
    font-size: 1.3rem;
    padding: 1rem 0;
    margin-top: 1rem;
    border-top: 2px solid var(--gold-light);
    position: relative;
}

.cart-total::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    width: 100px;
    height: 2px;
    background: var(--gold);
}

/* Artwork Details */
.artwork-details-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.artwork-details-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
}

.artwork-details-info h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.artwork-details-price {
    font-size: 1.5rem;
    color: var(--gold);
    font-weight: 600;
    margin: 1rem 0;
}

.artwork-details-description {
    margin: 1.5rem 0;
    line-height: 1.8;
}

.artwork-details-meta {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray);
}

.meta-item {
    margin-bottom: 0.8rem;
}

.meta-label {
    font-weight: 600;
    margin-right: 0.5rem;
}

/* Filter Buttons */
.filter-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 0.6rem 1.5rem;
    background-color: transparent;
    border: 1px solid var(--black);
    color: var(--black);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--black);
    color: var(--white);
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo-image {
        height: 48px;
    }

    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .tagline {
        font-size: 1.1rem;
    }

    .artwork-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1.5rem;
    }

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

    .artwork-details-content {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 2rem 1rem;
    }

    .form-container {
        padding: 2rem 1.5rem;
    }

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

    .btn-primary, .btn-secondary {
        width: 100%;
        max-width: 300px;
    }
}

/* Notification animations */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* Footer */
.footer {
    margin-top: 6rem;
    padding: 4rem 0 2rem;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.03) 0%, rgba(212, 175, 55, 0.02) 100%);
    border-top: 1px solid var(--gray);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--black);
    letter-spacing: 2px;
}

.footer-section h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--black);
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 600;
}

.footer-section p {
    color: #666;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: #666;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    padding-left: 1rem;
}

.footer-section ul li a::before {
    content: '→';
    position: absolute;
    left: 0;
    opacity: 0;
    transition: var(--transition);
}

.footer-section ul li a:hover::before {
    opacity: 1;
    color: var(--gold);
}

.footer-section ul li a:hover {
    color: var(--gold);
    padding-left: 1.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--gray);
    color: #999;
    font-size: 0.9rem;
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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