/* Reset and Base Styles */
:root {
    /* Primary Color Palette */
    --primary-blue: #2563eb;
    --primary-blue-dark: #1d4ed8;
    --primary-blue-light: #3b82f6;
    
    /* Secondary Colors */
    --secondary-teal: #0891b2;
    --secondary-teal-dark: #0e7490;
    --secondary-teal-light: #06b6d4;
    
    /* Accent Colors */
    --accent-purple: #7c3aed;
    --accent-purple-dark: #6d28d9;
    --accent-purple-light: #8b5cf6;
    
    /* Neutral Colors */
    --neutral-50: #f8fafc;
    --neutral-100: #f1f5f9;
    --neutral-200: #e2e8f0;
    --neutral-300: #cbd5e1;
    --neutral-400: #94a3b8;
    --neutral-500: #64748b;
    --neutral-600: #475569;
    --neutral-700: #334155;
    --neutral-800: #1e293b;
    --neutral-900: #0f172a;
    
    /* Status Colors */
    --success: #10b981;
    --success-light: #34d399;
    --warning: #f59e0b;
    --warning-light: #fbbf24;
    --error: #ef4444;
    --error-light: #f87171;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-teal) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--accent-purple) 0%, var(--primary-blue) 100%);
    --gradient-hero: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-teal) 50%, var(--accent-purple) 100%);
    --gradient-custom: linear-gradient(135deg, var(--secondary-teal) 0%, var(--accent-purple) 100%);
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--neutral-800);
    overflow-x: hidden;
    background-color: var(--neutral-50);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(248, 250, 252, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(37, 99, 235, 0.1);
    border-bottom: 1px solid var(--neutral-200);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h2 {
    color: var(--primary-blue);
    font-weight: 700;
    font-size: 1.8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--neutral-700);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: var(--primary-blue);
    transform: translateY(-1px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
    border-radius: 1px;
}

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

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.lang-btn, .login-btn, .admin-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-btn {
    background: var(--neutral-100);
    color: var(--neutral-700);
    border: 1px solid var(--neutral-200);
}

.login-btn {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}

.admin-btn {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: 0 2px 8px rgba(124, 58, 237, 0.2);
}

.lang-btn:hover, .login-btn:hover, .admin-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.lang-btn:hover {
    background: var(--neutral-200);
    color: var(--primary-blue);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    color: white;
    padding: 100px 0 50px;
    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 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-btn {
    background: var(--gradient-secondary);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
    position: relative;
    overflow: hidden;
}

.cta-btn::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;
}

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

.cta-btn:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.4);
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Custom Tour Section */
.custom-tour-section {
    padding: 100px 0;
    background: var(--neutral-50);
    position: relative;
}

.custom-tour-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.custom-tour-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--primary-900);
}

.custom-tour-header p {
    font-size: 1.2rem;
    color: var(--neutral-600);
    line-height: 1.6;
}

.custom-tour-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid var(--neutral-100);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-900);
}

.feature-card p {
    color: var(--neutral-600);
    line-height: 1.6;
    font-size: 0.95rem;
}

.custom-tour-cta {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--secondary-600) 100%);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.custom-tour-cta::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 0 100 100"><defs><pattern id="ctaGrain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23ctaGrain)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-content .cta-btn {
    background: white;
    color: var(--primary-600);
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-content .cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    background: var(--neutral-50);
}

/* Tours Section */
.tours {
    padding: 100px 0;
    background: var(--neutral-50);
    position: relative;
}

.tours::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0.3;
}

.tours h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--neutral-800);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Tours Controls */
.tours-controls {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.search-box {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}

.search-box input {
    width: 100%;
    padding: 1rem 3rem 1rem 1rem;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: #2c5aa0;
}

.search-box i {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
}

.filter-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.filter-controls select {
    padding: 0.8rem 1rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.filter-controls select:focus {
    outline: none;
    border-color: #2c5aa0;
}

#clearFilters {
    background: #6c757d;
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s ease;
}

#clearFilters:hover {
    background: #5a6268;
}

.tours-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: #666;
}

.no-results i {
    font-size: 4rem;
    color: #ddd;
    margin-bottom: 1rem;
}

.no-results h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.tour-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid var(--neutral-100);
    position: relative;
}

.tour-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.tour-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
    border-color: var(--primary-blue-light);
}

.tour-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.tour-content {
    padding: 1.5rem;
}

.tour-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--neutral-800);
}

.tour-description {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.5;
}

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

.tour-price {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tour-duration {
    color: var(--neutral-600);
    font-size: 0.9rem;
}

.book-btn {
    width: 100%;
    background: var(--gradient-primary);
    color: white;
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}

.book-btn:hover {
    background: var(--gradient-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--neutral-100);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0.3;
}

.about-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--neutral-800);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-content p {
    font-size: 1.1rem;
    color: var(--neutral-600);
    line-height: 1.8;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--gradient-primary);
    color: white;
    position: relative;
    overflow: hidden;
}

.contact::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 0 100 100"><defs><pattern id="waves" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M0,20 Q10,0 20,20 T40,20" stroke="white" stroke-width="0.5" fill="none" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23waves)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: #ff6b6b;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 15px;
    width: 90%;
    max-width: 450px;
    position: relative;
    animation: modalSlideIn 0.3s ease;
    max-height: 90vh;
    overflow-y: auto;
}

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

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 15px;
    right: 20px;
}

.close:hover {
    color: #333;
}

.modal h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
}

.login-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.social-login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.baidu-btn {
    background: #2932e1;
    color: white;
}

.wechat-btn {
    background: #07c160;
    color: white;
}

.social-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Login Tabs */
.login-tabs {
    display: flex;
    margin-bottom: 2rem;
    border-bottom: 2px solid #e9ecef;
}

.tab-btn {
    flex: 1;
    padding: 1rem;
    border: none;
    background: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    color: #666;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

.tab-btn.active {
    color: #2c5aa0;
    border-bottom-color: #2c5aa0;
}

.tab-btn:hover {
    color: #2c5aa0;
    background: #f8f9fa;
}

/* Login Tab Content */
.login-tab-content {
    display: none;
}

.login-tab-content.active {
    display: block;
}

/* Credentials Login Form */
#credentialsLoginForm {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group input {
    width: 100%;
    padding: 1rem 3rem 1rem 1rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #2c5aa0;
}

.form-group i {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
}

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

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: #666;
}

.remember-me input {
    margin: 0;
}

.forgot-password {
    color: #2c5aa0;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: #1e3d6f;
    text-decoration: underline;
}

.login-submit-btn {
    background: #2c5aa0;
    color: white;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

.login-submit-btn:hover {
    background: #1e3d6f;
}

/* Demo Accounts */
.demo-accounts {
    margin-top: 2rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #2c5aa0;
}

.demo-accounts h4 {
    margin: 0 0 1rem 0;
    color: #333;
    font-size: 1rem;
}

.demo-account {
    margin: 0.5rem 0;
    font-size: 0.9rem;
    color: #666;
}

.demo-account strong {
    color: #2c5aa0;
}

/* Logout Button */
.logout-btn {
    background: #dc3545;
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

/* Tour Details Modal */
.tour-details-modal {
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
}

.tour-details-header {
    position: relative;
    margin-bottom: 2rem;
}

.tour-details-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.tour-details-title {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 0.5rem;
}

.tour-details-subtitle {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 1rem;
}

.tour-details-price {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(44, 90, 160, 0.9);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-size: 1.2rem;
    font-weight: 600;
}

.tour-details-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 10px;
}

.tour-details-section h3 {
    color: #2c5aa0;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tour-details-section h3 i {
    font-size: 1.1rem;
}

.tour-details-overview {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #555;
}

.tour-details-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.tour-details-highlight {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.tour-details-highlight i {
    color: #2c5aa0;
    font-size: 1.2rem;
}

.tour-details-itinerary {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tour-details-day {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #2c5aa0;
}

.tour-details-day h4 {
    color: #2c5aa0;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.tour-details-day p {
    color: #666;
    line-height: 1.5;
    margin-bottom: 0.8rem;
}

.tour-details-activities {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.8rem;
}

.tour-details-activity {
    background: #e3f2fd;
    color: #1976d2;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: 500;
}

.tour-details-inclusions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.tour-details-inclusion-group {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.tour-details-inclusion-group h4 {
    color: #2c5aa0;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.tour-details-inclusion-list {
    list-style: none;
    padding: 0;
}

.tour-details-inclusion-list li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.5rem 0;
    color: #555;
}

.tour-details-inclusion-list li i {
    color: #4caf50;
    font-size: 0.9rem;
}

.tour-details-dates {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.tour-details-date {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.tour-details-date h4 {
    color: #2c5aa0;
    margin-bottom: 0.5rem;
}

.tour-details-date p {
    color: #666;
    font-size: 0.9rem;
}

.tour-details-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid #e9ecef;
}

.tour-details-btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tour-details-btn.primary {
    background: #2c5aa0;
    color: white;
}

.tour-details-btn.primary:hover {
    background: #1e3d6f;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
}

.tour-details-btn.secondary {
    background: #6c757d;
    color: white;
}

.tour-details-btn.secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(108, 117, 125, 0.3);
}

/* Booking Modal */
.booking-content {
    text-align: center;
}

.booking-icon {
    font-size: 4rem;
    color: #28a745;
    margin-bottom: 1rem;
}

.booking-icon i {
    animation: checkmark 0.6s ease-in-out;
}

@keyframes checkmark {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

#bookingDetails {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 10px;
    margin: 1rem 0;
    text-align: left;
}

.booking-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.booking-actions button {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.booking-actions button:first-child {
    background: #6c757d;
    color: white;
}

.booking-actions button:last-child {
    background: #2c5aa0;
    color: white;
}

.booking-actions button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Admin Panel */
.admin-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: white;
    z-index: 3000;
    overflow-y: auto;
}

.admin-header {
    background: #2c5aa0;
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.admin-header h2 {
    margin: 0;
}

.admin-stats {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
}

.admin-header button {
    background: #ff6b6b;
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.admin-header button:hover {
    background: #e55a5a;
}

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

.add-tour-form {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.add-tour-form h3 {
    margin-bottom: 1rem;
    color: #333;
}

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

#addTourForm {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#addTourForm input,
#addTourForm textarea {
    padding: 0.8rem;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

#addTourForm input:focus,
#addTourForm textarea:focus {
    outline: none;
    border-color: #2c5aa0;
}

#addTourForm textarea {
    min-height: 100px;
    resize: vertical;
}

#addTourForm button {
    background: #28a745;
    color: white;
    padding: 1rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

#addTourForm button:hover {
    background: #218838;
}

.tours-management h3 {
    margin-bottom: 1rem;
    color: #333;
}

.admin-tours-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.admin-tours-header input {
    padding: 0.5rem 1rem;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    width: 200px;
}

.admin-tours-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.admin-tour-item {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: box-shadow 0.3s ease;
}

.admin-tour-item:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.admin-tour-item h4 {
    margin: 0;
    color: #333;
    font-size: 1.1rem;
}

.admin-tour-item p {
    margin: 0.5rem 0 0 0;
    color: #666;
    font-size: 0.9rem;
}

.delete-btn {
    background: #dc3545;
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.delete-btn:hover {
    background: #c82333;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 120px 0 50px;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-image {
        margin-top: 2rem;
    }
    
    .custom-tour-header h2 {
        font-size: 2rem;
    }
    
    .custom-tour-features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 2rem 1.5rem;
    }
    
    .custom-tour-cta {
        padding: 2rem 1.5rem;
    }
    
    .cta-content h3 {
        font-size: 1.5rem;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .tours-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 20% auto;
        width: 95%;
    }
    
    .admin-content {
        padding: 1rem;
    }
    
    #addTourForm {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .nav-actions {
        gap: 0.5rem;
    }
    
    .lang-btn, .login-btn, .admin-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
}

/* Language switching animation */
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #2c5aa0;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Notification System */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 4000;
    max-width: 400px;
    animation: slideInRight 0.3s ease-out;
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    font-weight: 500;
}

.notification-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.notification-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.notification-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.notification i {
    font-size: 1.2rem;
}

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

/* Responsive adjustments for notifications */
@media (max-width: 768px) {
    .notification {
        right: 10px;
        left: 10px;
        max-width: none;
    }
}

/* Form Sections */
.form-section {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid #e9ecef;
}

.form-section h4 {
    color: #2c5aa0;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    border-bottom: 2px solid #2c5aa0;
    padding-bottom: 0.5rem;
}

.highlights-container,
.inclusions-container {
    flex: 1;
    margin: 0 0.5rem;
}

.highlights-container label,
.inclusions-container label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

.highlights-container textarea,
.inclusions-container textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 0.9rem;
    resize: vertical;
}

/* Itinerary */
.itinerary-day {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.itinerary-day h5 {
    color: #2c5aa0;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.day-title,
.day-title-zh,
.day-description,
.day-description-zh,
.day-activities,
.day-meals,
.day-accommodation {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.day-description,
.day-description-zh {
    resize: vertical;
    min-height: 60px;
}

#itineraryContainer {
    margin-bottom: 1rem;
}

#itineraryContainer button[type="button"] {
    background: #28a745;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
}

#itineraryContainer button[type="button"]:hover {
    background: #218838;
}

/* Custom Tour Section */
.custom-tour {
    padding: 80px 0;
    background: var(--gradient-custom);
    color: white;
    position: relative;
    overflow: hidden;
}

.custom-tour::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 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.custom-tour h2 {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 2.5rem;
    color: white;
}

.custom-tour p {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 1.2rem;
    opacity: 0.9;
}

.custom-tour-form {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.custom-tour-form .form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.custom-tour-form .form-group {
    flex: 1;
}

.custom-tour-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: white;
    font-size: 1rem;
}

.custom-tour-form input,
.custom-tour-form select,
.custom-tour-form textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.custom-tour-form input::placeholder,
.custom-tour-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.custom-tour-form input:focus,
.custom-tour-form select:focus,
.custom-tour-form textarea:focus {
    outline: none;
    border-color: #ffd700;
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2);
}

.custom-tour-form select option {
    background: #333;
    color: white;
}

.custom-tour-form button {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    position: relative;
    overflow: hidden;
}

.custom-tour-form button::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;
}

.custom-tour-form button:hover::before {
    left: 100%;
}

.custom-tour-form button:hover {
    background: var(--gradient-secondary);
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.4);
}

/* Responsive adjustments for form sections */
@media (max-width: 768px) {
    .highlights-container,
    .inclusions-container {
        margin: 0;
        margin-bottom: 1rem;
    }
    
    .custom-tour-form .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .custom-tour-form .form-group {
        margin-bottom: 1rem;
    }
    
    .custom-tour h2 {
        font-size: 2rem;
    }
    
    .custom-tour-form {
        padding: 1.5rem;
        margin: 0 1rem;
    }
}