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

:root {
    --primary-color: #1A237E;
    --accent-color: #00838F;
    --background-color: #F5F5F5;
    --text-color: #424242;
    --white: #FFFFFF;
    --light-gray: #E0E0E0;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--white);
    transition: var(--transition);
}

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

.gallery-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
}

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

.nav-btn {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: var(--white);
    transform: translateY(-2px);
}

/* Main Content */
.main {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

.section {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.section.active {
    display: block;
}

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

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-color);
    opacity: 0.8;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--white);
    color: var(--text-color);
    border: 2px solid var(--light-gray);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-color);
    color: var(--white);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.artwork-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

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

.artwork-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

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

.artwork-info {
    padding: 1.5rem;
}

.artwork-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.artwork-price {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.artwork-description {
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.artwork-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-available {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.status-sold {
    background: rgba(255, 152, 0, 0.1);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

/* Admin Panel */
.admin-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.admin-form,
.admin-list {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.admin-form h3,
.admin-list h3 {
    font-family: 'Playfair Display', serif;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 131, 143, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* Admin Artwork Item */
.admin-artwork-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.admin-artwork-item:hover {
    box-shadow: var(--shadow);
}

.admin-artwork-image {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
}

.admin-artwork-info {
    flex: 1;
}

.admin-artwork-title {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.admin-artwork-price {
    color: var(--accent-color);
    font-weight: 500;
}

.admin-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-small {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

.btn-delete {
    background: #f44336;
    color: var(--white);
}

.btn-small:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--white);
    margin: 2% auto;
    padding: 0;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease-out;
}

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

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    color: var(--white);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
    background: rgba(0, 0, 0, 0.5);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.close:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: scale(1.1);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

#modalImage {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.modal-info {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#modalTitle {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

#modalDescription {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.modal-details {
    margin-bottom: 2rem;
}

.modal-details p {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.modal-details strong {
    color: var(--primary-color);
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-whatsapp:hover {
    background: #128C7E;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: var(--white);
    border-radius: 50%;
    text-align: center;
    font-size: 2rem;
    box-shadow: var(--shadow-hover);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    text-decoration: none;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background-color: #128C7E;
    transform: scale(1.1);
    color: var(--white);
    text-decoration: none;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 2rem 0;
    margin-top: 4rem;
}

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

.footer-info {
    display: flex;
    align-items: center;
    gap: 2rem;
    text-align: left;
}

.footer-logo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--white);
}

.contact-info h3 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.contact-info p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-info i {
    color: var(--accent-color);
    width: 16px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        text-align: center;
    }

    .gallery-title {
        font-size: 1.5rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .admin-panel {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    #modalImage {
        height: 300px;
    }

    .footer-info {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .filter-bar {
        flex-direction: column;
        align-items: center;
    }

    .nav {
        width: 100%;
        justify-content: center;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .logo {
        width: 50px;
        height: 50px;
    }

    .gallery-title {
        font-size: 1.3rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .admin-form,
    .admin-list {
        padding: 1.5rem;
    }

    .modal-content {
        width: 95%;
        margin: 5% auto;
    }

    .modal-info {
        padding: 1.5rem;
    }

    #modalTitle {
        font-size: 1.5rem;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

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

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    font-weight: 500;
}

.message.success {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.message.error {
    background: rgba(244, 67, 54, 0.1);
    color: #f44336;
    border: 1px solid #f44336;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}