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

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #f5f5f5;
    --accent-color: #d4af37;
    --text-color: #333;
    --text-light: #666;
    --border-color: #e0e0e0;
    --white: #ffffff;
    --max-width: 1200px;
    --spacing: 1rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

/* Header */
.header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.5px;
}

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

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--accent-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--primary-color);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(26,26,26,0.9) 0%, rgba(26,26,26,0.7) 100%),
                url('../images/hero-bg.svg') center/cover;
    color: var(--white);
    padding: 8rem 0 6rem;
    text-align: center;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #c5a028;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.btn-link:hover {
    text-decoration: underline;
}

/* Sections */
.section {
    padding: 5rem 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--primary-color);
}

/* Exhibition Card */
.exhibition-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
}

.exhibition-image img,
.highlight-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    object-fit: cover;
}

.exhibition-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.exhibition-date {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.exhibition-content p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* Highlights Grid */
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.highlight-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.highlight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.highlight-image {
    height: 200px;
    overflow: hidden;
}

.highlight-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.highlight-card h3 {
    padding: 1.5rem 1.5rem 0.5rem;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.highlight-card p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-light);
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.info-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.info-card p {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

/* Forms */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.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 select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

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

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

.form-group .error {
    color: #d32f2f;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-group.error input,
.form-group.error select {
    border-color: #d32f2f;
}

.form-group.error .error {
    display: block;
}

.ticket-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.ticket-type {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.ticket-type:hover {
    border-color: var(--accent-color);
}

.ticket-type h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.ticket-quantity {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.ticket-quantity button {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    background-color: var(--white);
    border-radius: 4px;
    cursor: pointer;
    font-size: 1.25rem;
    transition: all 0.3s ease;
}

.ticket-quantity button:hover {
    background-color: var(--secondary-color);
    border-color: var(--accent-color);
}

.ticket-quantity input {
    width: 60px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.5rem;
}

.date-time-selection {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.calendar-container {
    position: relative;
}

.calendar {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.75rem;
}

.time-slot {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--white);
    cursor: pointer;
    text-align: center;
    transition: all 0.3s ease;
}

.time-slot:hover {
    border-color: var(--accent-color);
    background-color: var(--secondary-color);
}

.time-slot.selected {
    border-color: var(--accent-color);
    background-color: var(--accent-color);
    color: var(--primary-color);
    font-weight: 600;
}

.success-message {
    background-color: #4caf50;
    color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    text-align: center;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 4rem 0 2rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
}

/* Content Pages */
.content-page {
    padding: 3rem 0;
}

.content-page h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.content-page h2 {
    font-size: 2rem;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.content-page h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.content-page p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    line-height: 1.8;
}

.content-page ul,
.content-page ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

.content-page li {
    margin-bottom: 0.5rem;
}

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

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.gallery-item .gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--white);
    padding: 1.5rem 1rem 1rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 2rem 0;
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        padding: 1rem 0;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .exhibition-card {
        grid-template-columns: 1fr;
    }
    
    .date-time-selection {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .form-container {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 0 3rem;
        min-height: 400px;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .highlights-grid,
    .info-grid {
        grid-template-columns: 1fr;
    }
}