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

:root {
    --primary-color: #d32f2f;
    --primary-dark: #b71c1c;
    --secondary-color: #ff6f00;
    --accent-color: #ffc107;
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-light: #ffffff;
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-dark: #263238;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --chinese-red: #c8102e;
    --chinese-gold: #ffd700;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Chinese Text Styling */
.chinese-text {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--chinese-red);
    font-weight: 700;
    font-size: 1.2em;
}

.chinese-accent {
    color: var(--chinese-red);
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: var(--text-light);
    box-shadow: var(--shadow);
}

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

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

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


/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.chinese-characters {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    font-size: 4rem;
    font-family: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

.char {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    background: var(--gradient);
    color: white;
    border-radius: 20px;
    box-shadow: var(--shadow);
    animation: float 3s ease-in-out infinite;
}

.char:nth-child(2) { animation-delay: 0.5s; }
.char:nth-child(3) { animation-delay: 1s; }
.char:nth-child(4) { animation-delay: 1.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: var(--bg-secondary);
}

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

.about-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.about-card h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.about-role {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.about-description p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.credentials {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.credential {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 10px;
}

.credential i {
    color: var(--primary-color);
    font-size: 1.2rem;
}


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

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.service-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.service-features {
    list-style: none;
    margin: 1.5rem 0;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.service-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-top: 1.5rem;
}

/* Courses Section */
.courses {
    background: var(--bg-secondary);
}

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

.course-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    position: relative;
    transition: transform 0.3s ease;
}

.course-card:hover {
    transform: translateY(-5px);
}

.course-level {
    position: absolute;
    top: -10px;
    right: 20px;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
}

.course-level.beginner {
    background: #4caf50;
}

.course-level.intermediate {
    background: #ff9800;
}

.course-level.advanced {
    background: #f44336;
}

.course-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.course-details {
    display: flex;
    gap: 2rem;
    margin-top: 1.5rem;
}

.detail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.detail i {
    color: var(--primary-color);
}

/* Contact Section */
.contact-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Social Media Links */
.social-links {
    text-align: center;
    width: 100%;
}

.social-links h3 {
    color: var(--text-primary);
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
    justify-items: center;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-align: left;
    width: 100%;
    max-width: 280px;
    padding: 1.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.social-link.telegram:hover {
    border-color: #0088cc;
    background: linear-gradient(135deg, #0088cc, #00a8ff);
    color: white;
}

.social-link.whatsapp:hover {
    border-color: #25d366;
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: white;
}

.social-link.instagram:hover {
    border-color: #e4405f;
    background: linear-gradient(135deg, #e4405f, #fd1d1d, #fcb045);
    color: white;
}

.social-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.social-link.telegram .social-icon {
    background: linear-gradient(135deg, #0088cc, #00a8ff);
    color: white;
}

.social-link.whatsapp .social-icon {
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: white;
}

.social-link.instagram .social-icon {
    background: linear-gradient(135deg, #e4405f, #fd1d1d, #fcb045);
    color: white;
}

.social-link.no-icon .social-icon {
    display: none;
}

.social-info {
    text-align: left;
    flex: 1;
}

.social-info h4 {
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    font-size: 1.1rem;
}

.social-info p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.9rem;
}

.social-link:hover .social-info h4,
.social-link:hover .social-info p {
    color: white;
}



/* Responsive Design */
@media (max-width: 768px) {
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .chinese-characters {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        font-size: 2.5rem;
    }
    
    .char {
        width: 80px;
        height: 80px;
    }
    
    
    .social-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    
    .hero-buttons {
        justify-content: center;
    }
    
    .credentials {
        flex-direction: column;
    }
    
    .course-details {
        flex-direction: row;
        gap: 1rem;
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    
    .hero-content {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-card,
    .service-card,
    .course-card,
    .contact-form {
        padding: 1.5rem;
    }
    
    .chinese-characters {
        font-size: 2rem;
    }
    
    .char {
        width: 60px;
        height: 60px;
    }
}

/* Header Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand {
    display: flex;
    flex-direction: column;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.brand-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

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

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

.btn-nav {
    padding: 10px 20px;
    font-size: 0.9rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Hero Improvements */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    box-shadow: var(--shadow);
}

.hero-badge i {
    color: var(--accent-color);
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
}

.hero-stats .stat-item {
    text-align: center;
}

.hero-stats .stat-number,
.hero-stats .stat-label {
    font-size: 2rem;
    font-weight: 700;
    color: var(--chinese-red);
}

.hero-stats .stat-label {
    font-size: 0.9rem;
    font-weight: 500;
}

.hero-decorative {
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(211, 47, 47, 0.1), rgba(255, 111, 0, 0.1));
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

/* Advantages Section */
.advantages {
    background: var(--bg-secondary);
}

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

.advantage-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

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

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

/* About Section Updates */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-photo {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
}

/* Methodology Section */
.methodology {
    background: var(--bg-secondary);
}

.methodology-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.methodology-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    position: relative;
    transition: transform 0.3s ease;
}

.methodology-item:hover {
    transform: translateY(-5px);
}

.methodology-number {
    position: absolute;
    top: -15px;
    left: 20px;
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.methodology-item h3 {
    margin-top: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Services Updates */
.service-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.service-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    margin-top: 1rem;
    width: 100%;
}

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

/* Courses Updates */
.course-topics {
    list-style: none;
    margin-top: 1.5rem;
    text-align: left;
}

.course-topics li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.course-topics li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Statistics Section */
.statistics {
    background: var(--gradient);
    color: white;
}

.statistics .section-title,
.statistics .section-subtitle {
    color: white;
}

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

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--chinese-gold);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: white;
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Testimonials Section */
.testimonials {
    background: var(--bg-secondary);
}

.testimonials-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonials-container {
    position: relative;
}

.testimonial-card {
    display: none;
    background: white;
    padding: 0.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.testimonial-card.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.testimonial-screenshot {
    display: block;
    width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 12px;
    margin: 0 auto;
}

.testimonials-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.testimonial-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    background: white;
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

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

.testimonials-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-question h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.faq-question i {
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 1.5rem 1.5rem;
}

.faq-answer p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Booking Form Section */
.booking {
    background: var(--bg-secondary);
}

.booking-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.booking-form {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

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

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #f44336;
}

.error-message {
    display: block;
    color: #f44336;
    font-size: 0.85rem;
    margin-top: 0.25rem;
    min-height: 1.2rem;
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.form-success {
    display: none;
    text-align: center;
    padding: 1.5rem;
    background: #4caf50;
    color: white;
    border-radius: 10px;
    margin-top: 1rem;
}

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

.form-success i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.booking-info {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.booking-info h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.booking-benefits {
    list-style: none;
    margin-bottom: 2rem;
}

.booking-benefits li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    color: var(--text-secondary);
}

.booking-benefits i {
    color: #4caf50;
    font-size: 1.2rem;
}

.booking-contact {
    border-top: 2px solid var(--bg-secondary);
    padding-top: 2rem;
}

.booking-contact p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.booking-social {
    display: flex;
    gap: 1rem;
}

.social-btn {
    flex: 1;
    padding: 0.75rem;
    border-radius: 8px;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    color: white;
}

.social-btn.telegram {
    background: linear-gradient(135deg, #0088cc, #00a8ff);
}

.social-btn.whatsapp {
    background: linear-gradient(135deg, #25d366, #128c7e);
}

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

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 3rem 0 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient);
    color: white;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Responsive Updates */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: 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-item {
        margin: 1rem 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

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

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

    .advantages-grid,
    .methodology-content {
        grid-template-columns: 1fr;
    }

    .statistics-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 1rem;
    }

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

    .booking-social {
        flex-direction: column;
    }
}