:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f56565;
    --text-dark: #2d3748;
    --text-light: #718096;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --gradient-primary: linear-gradient(135deg, #667eea, #764ba2);
    --gradient-accent: linear-gradient(135deg, #f56565, #ed8936);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.hero {
    background: var(--gradient-primary);
    color: white;
    padding: 5rem 0 3rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.25rem, 4vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.95;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-white);
    color: var(--primary-color);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
    text-decoration: none;
    color: var(--primary-color);
}

/* Navigation */
.nav {
    background: var(--bg-white);
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

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

.nav-logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.nav-separator {
    color: var(--text-light);
    margin: 0 0.5rem;
}

.nav-current {
    color: var(--text-light);
    font-weight: 500;
}

.nav-stats {
    display: flex;
    gap: 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Welcome page styles */
.welcome-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.welcome-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: inherit;
    display: block;
}

.welcome-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: inherit;
}

.welcome-card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.welcome-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.welcome-card-content {
    padding: 1.5rem;
    text-align: center;
}

.welcome-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.welcome-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.welcome-stats {
    display: flex;
    justify-content: center;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Items Grid */
.section {
    padding: 4rem 0;
}

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

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.item-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
}

.item-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.item-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.item-card:hover::before {
    transform: scaleX(1);
}

.item-image-container {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--gradient-primary);
    position: relative;
}

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

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

.item-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-color);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.item-content {
    padding: 1.5rem;
}

.item-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.item-title a {
    color: var(--text-dark);
    text-decoration: none;
}

.item-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.item-meta span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.item-price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.item-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.6;
    font-size: 0.95rem;
}

.item-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gradient-primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 600;
    transition: var(--transition);
    width: 100%;
    justify-content: center;
    font-size: 0.95rem;
    text-decoration: none;
}

.item-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: white;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: rgba(255,255,255,0.85);
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1.25rem;
    font-size: 1.2rem;
}

.footer-section p {
    color: rgba(255,255,255,0.7);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-section a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
    display: block;
    margin-bottom: 0.5rem;
}

.footer-section a:hover {
    color: white;
    transform: translateX(5px);
}

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

/* Detail pages */
.detail-header {
    background: var(--bg-light);
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.detail-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    align-items: start;
}

.detail-image {
    width: 100%;
    height: 300px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

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

.detail-info {
    padding: 0;
}

.detail-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.detail-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.detail-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.detail-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.detail-content {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.booking-section {
    background: var(--gradient-primary);
    color: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin-top: 2rem;
    position: relative;
    overflow: hidden;
}

.booking-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.1)" points="0,0 1000,1000 0,1000"/></svg>');
}

.book-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: white;
    color: var(--primary-color);
    padding: 1.1rem 2.2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    margin-top: 1.25rem;
    font-size: 1.05rem;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 2;
    text-decoration: none;
}

.book-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
    text-decoration: none;
    color: var(--primary-color);
}

.author-section {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: var(--border-radius);
    margin: 2rem 0;
    border-left: 4px solid var(--primary-color);
}

.author-avatar {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
    box-shadow: var(--shadow);
}

/* Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.gallery-item {
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 150px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.3);
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover::before {
    opacity: 1;
}

.gallery-item:hover {
    transform: scale(1.05);
}

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

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.95);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.lightbox.active .lightbox-img {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.lightbox-close:hover {
    background: rgba(255,255,255,0.1);
}

/* Include list */
.included-list {
    list-style: none;
    padding: 0;
}

.included-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.included-list li:before {
    content: '✓';
    color: var(--accent-color);
    font-weight: bold;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .hero {
        padding: 3rem 0 2rem;
    }
    
    .detail-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .detail-image {
        height: 250px;
    }
    
    .items-grid {
        grid-template-columns: 1fr;
    }
    
    .item-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .author-section {
        flex-direction: column;
        text-align: center;
    }
    
    .detail-content {
        padding: 1.5rem;
    }
    
    .booking-section {
        padding: 2rem 1.5rem;
    }
    
    .nav-stats {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .welcome-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .lightbox-close {
        top: 1rem;
        right: 1rem;
    }
    
    .lightbox-img {
        max-width: 95%;
        max-height: 80%;
    }
}

/* Loading animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.5s ease-out;
}

/* Scroll to top button */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
}