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

:root {
    /* Петербургская цветовая палитра */
    --nevsky-blue: #2c3e50;        /* Темно-синий как ночная Нева */
    --canal-teal: #00695c;         /* Зелено-бирюзовый как вода каналов */
    --palace-gold: #d4af37;        /* Золотой как купола и дворцы */
    --marble-white: #f8f9fa;       /* Белый как мраморные фасады */
    --granite-gray: #546e7a;       /* Серый как гранит набережных */
    --sunset-orange: #e67e22;      /* Оранжевый как закаты над Невой */
    --bronze-accent: #8d6e63;      /* Бронзовый как памятники */
    --text-dark: #263238;          /* Темный текст */
    --text-light: #78909c;         /* Светлый текст */
    --shadow: 0 4px 12px rgba(44, 62, 80, 0.15);
    --shadow-hover: 0 8px 25px rgba(44, 62, 80, 0.25);
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--marble-white);
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(248, 249, 250, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--nevsky-blue);
}

.logo {
    height: 45px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--nevsky-blue);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 0;
}

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

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

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

.nav-contact .phone {
    text-decoration: none;
    color: var(--nevsky-blue);
    font-weight: 600;
    transition: color 0.3s;
}

.nav-contact .phone:hover {
    color: var(--canal-teal);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--nevsky-blue);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, 
                rgba(44, 62, 80, 0.85) 0%,
                rgba(0, 105, 92, 0.75) 100%),
                url('../images/hero-bg.jpg') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--marble-white);
    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" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(212, 175, 55, 0.1)"/></svg>');
    background-size: cover;
}

.hero-content {
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 300;
    letter-spacing: 0.5px;
}

.cta-button {
    background: linear-gradient(135deg, var(--palace-gold), var(--sunset-orange));
    color: var(--marble-white);
    border: none;
    padding: 18px 45px;
    font-size: 1.1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
    background: linear-gradient(135deg, #c19b2a, #d35400);
}

/* Sections */
.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--nevsky-blue);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--palace-gold), var(--canal-teal));
    border-radius: 2px;
}

/* Tours Section */
.tours {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--marble-white) 0%, #f1f3f4 100%);
}

.filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    border: 2px solid var(--canal-teal);
    background: transparent;
    color: var(--canal-teal);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

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

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

.tours-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.tour-card {
    background: var(--marble-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 105, 92, 0.1);
}

.tour-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--canal-teal);
}

.tour-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.tour-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tour-card:hover .tour-image img {
    transform: scale(1.1);
}

.tour-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, var(--palace-gold), var(--sunset-orange));
    color: var(--marble-white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

.tour-badge.new {
    background: linear-gradient(135deg, var(--canal-teal), #004d40);
}

.tour-content {
    padding: 2rem;
}

.tour-content h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--nevsky-blue);
}

.tour-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.tour-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    color: var(--granite-gray);
}

.tour-price {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.price {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--nevsky-blue);
    background: linear-gradient(135deg, var(--nevsky-blue), var(--canal-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.per-person {
    color: var(--text-light);
    font-size: 0.9rem;
}

.book-btn {
    display: block;
    text-align: center;
    text-decoration: none;
    width: 100%;
    background: linear-gradient(135deg, var(--nevsky-blue), var(--canal-teal));
    color: var(--marble-white);
    border: none;
    padding: 15px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(44, 62, 80, 0.2);
}

.book-btn:hover {
    background: linear-gradient(135deg, var(--canal-teal), #004d40);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 105, 92, 0.3);
    color: var(--marble-white);
    text-decoration: none;
}

/* About Section */
.about {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 3rem;
}

.feature {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: var(--marble-white);
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--palace-gold);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature h3 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 1rem;
    color: var(--nevsky-blue);
    font-size: 1.3rem;
}

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

/* Process Section */
.process {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--marble-white) 0%, #f1f3f4 100%);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.process-step {
    text-align: center;
    padding: 2rem 1rem;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--palace-gold), var(--sunset-orange));
    color: var(--marble-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.process-step h3 {
    font-family: 'Playfair Display', serif;
    color: var(--nevsky-blue);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

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

/* Advantages Section */
.advantages {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-card {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--marble-white);
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 105, 92, 0.1);
}

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

.advantage-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.advantage-content h3 {
    font-family: 'Playfair Display', serif;
    color: var(--nevsky-blue);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.advantage-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* Guides Section */
.guides {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--marble-white) 0%, #f1f3f4 100%);
}

.guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.guide-card {
    background: var(--marble-white);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 105, 92, 0.1);
}

.guide-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--canal-teal);
}

.guide-photo {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1.5rem;
    border: 4px solid var(--palace-gold);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.guide-card h3 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 1rem;
    color: var(--nevsky-blue);
    font-size: 1.4rem;
}

.guide-bio {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.guide-rating {
    color: var(--palace-gold);
    font-size: 1.3rem;
    letter-spacing: 2px;
}

/* Reviews Section */
.reviews {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--nevsky-blue) 0%, #1a252f 100%);
    color: var(--marble-white);
}

.reviews .section-title {
    color: var(--marble-white);
}

.reviews .section-title::after {
    background: linear-gradient(90deg, var(--palace-gold), var(--marble-white));
}

.reviews-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.review-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--palace-gold);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.review-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.review-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--marble-white);
    font-size: 1.1rem;
    line-height: 1.7;
}

.review-author strong {
    display: block;
    color: var(--palace-gold);
    font-size: 1.1rem;
}

.review-author span {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--marble-white);
    border-radius: 15px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--canal-teal);
}

.contact-item strong {
    color: var(--nevsky-blue);
    font-size: 1.1rem;
}

.contact-item a {
    color: var(--canal-teal);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.contact-item a:hover {
    color: var(--nevsky-blue);
}

.contact-form {
    background: var(--marble-white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 105, 92, 0.1);
}

.contact-form h3 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 2rem;
    color: var(--nevsky-blue);
    font-size: 1.5rem;
    text-align: center;
}

.contact-form input,
.contact-form select {
    width: 100%;
    padding: 15px;
    margin-bottom: 1.5rem;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.contact-form input:focus,
.contact-form select:focus {
    outline: none;
    border-color: var(--canal-teal);
    background: var(--marble-white);
    box-shadow: 0 0 0 3px rgba(0, 105, 92, 0.1);
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--canal-teal), #004d40);
    color: var(--marble-white);
    border: none;
    padding: 18px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(0, 105, 92, 0.3);
}

.submit-btn:hover {
    background: linear-gradient(135deg, #004d40, var(--canal-teal));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 105, 92, 0.4);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--nevsky-blue) 0%, #1a252f 100%);
    color: var(--marble-white);
    padding: 3rem 0 1rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--palace-gold), var(--canal-teal));
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--marble-white);
    margin-bottom: 1rem;
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(44, 62, 80, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--marble-white);
    margin: 5% auto;
    padding: 3rem;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: 2px solid var(--palace-gold);
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--granite-gray);
    transition: color 0.3s;
}

.close:hover {
    color: var(--nevsky-blue);
}

/* Tour Detail Pages */
.tour-detail {
    padding: 120px 0 60px;
}

.tour-header {
    margin-bottom: 3rem;
}

.tour-hero {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.tour-hero img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.tour-hero-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(44, 62, 80, 0.9));
    color: var(--marble-white);
    padding: 3rem;
}

.tour-hero-content h1 {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    margin-bottom: 1rem;
}

.tour-meta-large {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    font-size: 1.1rem;
}

.tour-content-detail {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.tour-main h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: var(--nevsky-blue);
    margin-bottom: 1.5rem;
    margin-top: 2.5rem;
}

.tour-main h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    color: var(--nevsky-blue);
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.tour-main p {
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-dark);
}

.tour-includes, .tour-notes {
    background: var(--marble-white);
    padding: 2rem;
    border-radius: 15px;
    margin: 2rem 0;
    border-left: 4px solid var(--canal-teal);
    box-shadow: var(--shadow);
}

.tour-includes h3, .tour-notes h3 {
    margin-top: 0;
    color: var(--canal-teal);
}

.tour-includes ul, .tour-notes ul {
    list-style: none;
    padding: 0;
}

.tour-includes li, .tour-notes li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.tour-includes li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--canal-teal);
    font-weight: bold;
}

.tour-notes li::before {
    content: 'ℹ';
    position: absolute;
    left: 0;
    color: var(--palace-gold);
}

/* Booking Sidebar */
.tour-sidebar {
    position: sticky;
    top: 120px;
}

.booking-card {
    background: var(--marble-white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    border: 2px solid var(--palace-gold);
    margin-bottom: 2rem;
}

.booking-card h3 {
    font-family: 'Playfair Display', serif;
    color: var(--nevsky-blue);
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 1.5rem;
}

.booking-card .price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--nevsky-blue);
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--nevsky-blue), var(--canal-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.booking-card .price span {
    font-size: 1rem;
    color: var(--text-light);
    -webkit-text-fill-color: initial;
}

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

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

.booking-form input,
.booking-form select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.booking-form input:focus,
.booking-form select:focus {
    outline: none;
    border-color: var(--canal-teal);
    background: var(--marble-white);
    box-shadow: 0 0 0 3px rgba(0, 105, 92, 0.1);
}

.calendar-integration {
    margin-top: 0.5rem;
    padding: 1rem;
    background: #e8f5e8;
    border-radius: 8px;
    border-left: 4px solid #4caf50;
}

.calendar-integration small {
    color: #2e7d32;
    font-size: 0.85rem;
}

.map-placeholder {
    background: var(--marble-white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
}

.map-placeholder h4 {
    color: var(--nevsky-blue);
    margin-bottom: 1rem;
}

.map-integration {
    padding: 2rem;
    background: #e3f2fd;
    border-radius: 10px;
    border: 2px dashed var(--canal-teal);
}

.map-integration p {
    margin: 0.5rem 0;
    color: var(--nevsky-blue);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    .tour-content-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .tour-sidebar {
        position: static;
    }
    
    .tour-hero-content h1 {
        font-size: 2.2rem;
    }
    
    .tour-meta-large {
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .tour-card {
        margin: 0 10px;
    }
    
    .tour-hero img {
        height: 300px;
    }
    
    .tour-hero-content {
        padding: 1.5rem;
    }
    
    .tour-main h2 {
        font-size: 1.7rem;
    }
    
    .tour-main h3 {
        font-size: 1.3rem;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .advantage-card {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .nav {
        padding: 1rem;
    }
    
    .tours-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 2rem;
        margin: 10% auto;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        padding: 1.5rem 0.5rem;
    }
    
    .advantage-card {
        padding: 1.5rem;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

/* Mobile Menu Active State */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--marble-white);
    box-shadow: var(--shadow-hover);
    padding: 2rem;
    gap: 1.5rem;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}