/* ================================================
   Russian Visa Service - Modern CSS
   Professional multilingual visa website
   ================================================ */

/* ===== CSS Variables ===== */
:root {
    --primary-color: #0066cc;
    --primary-dark: #004c99;
    --primary-light: #3385d6;
    --secondary-color: #f8f9fa;
    --accent-color: #ff6b35;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    
    --text-dark: #212529;
    --text-light: #6c757d;
    --text-muted: #adb5bd;
    
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #343a40;
    
    --border-color: #dee2e6;
    --border-radius: 12px;
    --border-radius-sm: 6px;
    --border-radius-lg: 16px;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    
    --container-width: 1200px;
    --header-height: 80px;
}

/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg-white);
    overflow-x: hidden;
}

/* Chinese and Japanese fonts */
html[lang="zh-CN"] body,
html[lang="zh"] body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
}

html[lang="ja"] body {
    font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
}

.logo strong {
    color: var(--text-dark);
}

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

.nav-menu a {
    font-weight: 500;
    color: var(--text-dark);
    transition: var(--transition);
}

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

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

/* Language Selector */
.language-selector {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.lang-btn .flag {
    font-size: 1.2rem;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 180px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
}

.language-selector:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    font-size: 0.95rem;
    transition: var(--transition);
}

.lang-option:hover {
    background: var(--bg-light);
}

.lang-option.active {
    background: var(--primary-color);
    color: var(--bg-white);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
}

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

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

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: calc(var(--header-height) + 80px) 0 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--bg-white);
    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 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-title .highlight {
    color: var(--accent-color);
    text-shadow: 0 0 20px rgba(255, 107, 53, 0.5);
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    opacity: 0.95;
    margin-bottom: 30px;
}

.hero-features {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 500;
}

.feature-item i {
    font-size: 1.3rem;
    color: var(--accent-color);
}

.hero-cta {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
}

.trust-badges {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    opacity: 0.9;
}

.trust-item i {
    color: var(--success-color);
}

.hero-image {
    position: relative;
}

.stats-card {
    background: var(--bg-white);
    color: var(--text-dark);
    padding: 30px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    margin-bottom: 20px;
}

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

.stat-item + .stat-item {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 5px;
}

.hero-illustration {
    text-align: center;
    opacity: 0.6;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
}

/* ===== Section Styles ===== */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-light);
    color: var(--bg-white);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 15px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 15px;
}

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

/* ===== Services Section ===== */
.services {
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.service-card {
    position: relative;
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.service-card.featured {
    border: 3px solid var(--primary-color);
}

.featured-badge {
    position: absolute;
    top: -15px;
    right: 30px;
    padding: 6px 16px;
    background: var(--accent-color);
    color: var(--bg-white);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}

.service-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    color: var(--bg-white);
    border-radius: 20px;
    font-size: 2.5rem;
    margin-bottom: 25px;
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
    margin-bottom: 25px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    color: var(--text-dark);
}

.service-features i {
    color: var(--success-color);
}

.service-price {
    text-align: center;
    padding: 20px 0;
    border-top: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 25px;
}

.price {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

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

.additional-services {
    margin-top: 60px;
}

.additional-services h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
}

.addon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.addon-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-white);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

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

.addon-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.addon-item h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.addon-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===== How It Works Section ===== */
.steps-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1000px;
    margin: 0 auto 50px;
}

.step-item {
    position: relative;
    flex: 1;
    text-align: center;
    padding: 0 20px;
}

.step-number {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-color);
    color: var(--bg-white);
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.2rem;
    z-index: 2;
}

.step-icon {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border: 4px solid var(--primary-light);
    border-radius: 50%;
    margin: 0 auto 20px;
    font-size: 2.5rem;
    color: var(--primary-color);
}

.step-item h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.step-item p {
    font-size: 0.95rem;
    color: var(--text-light);
}

.step-connector {
    width: 80px;
    height: 4px;
    background: var(--primary-light);
    position: relative;
    top: 40px;
}

.process-cta {
    text-align: center;
}

/* ===== Countries Section ===== */
.countries-search {
    max-width: 500px;
    margin: 0 auto 40px;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 20px;
    color: var(--text-light);
    font-size: 1.2rem;
}

.search-box input {
    width: 100%;
    padding: 16px 20px 16px 55px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
}

.countries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 40px;
}

.country-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
}

.country-item:hover {
    border-color: var(--primary-color);
    background: var(--bg-light);
    transform: translateX(5px);
}

.country-item .flag {
    font-size: 2rem;
}

.country-item .name {
    font-weight: 500;
    color: var(--text-dark);
}

.countries-note {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--border-radius);
}

.countries-note i {
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* ===== FAQ Section ===== */
.faq {
    background: var(--bg-light);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}

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

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

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

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 25px 20px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== Reviews Section ===== */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.review-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.review-rating {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
}

.review-rating i {
    color: #ffc107;
    font-size: 1.1rem;
}

.review-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 25px;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--bg-white);
    border-radius: 50%;
    font-size: 1.5rem;
}

.author-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 3px;
}

.author-info p {
    font-size: 0.9rem;
    color: var(--text-light);
}

.reviews-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.stat-box {
    text-align: center;
    padding: 30px;
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

.stat-box .stat-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-box .stat-label {
    font-size: 1rem;
    color: var(--text-light);
}

/* ===== Order/Contact Section ===== */
.order-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    max-width: 1100px;
    margin: 0 auto;
}

.order-form-container {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
}

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-weight: normal;
    cursor: pointer;
    margin-bottom: 15px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 4px;
}

.form-note {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 20px;
}

.order-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-card {
    padding: 30px;
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

.info-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: var(--bg-white);
    border-radius: 50%;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.info-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.info-card p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.info-link {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

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

.contact-methods h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    color: var(--text-dark);
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.3rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: var(--bg-white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

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

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

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

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-col ul a:hover {
    color: var(--bg-white);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom p {
    margin-bottom: 10px;
}

/* ===== Cookie Banner ===== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-top: 2px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    padding: 25px 0;
    transform: translateY(100%);
    transition: var(--transition);
    z-index: 1001;
}

.cookie-banner.active {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.cookie-text {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
}

.cookie-text i {
    font-size: 2rem;
    color: var(--accent-color);
}

.cookie-text p {
    color: var(--text-dark);
    line-height: 1.6;
}

.cookie-actions {
    display: flex;
    gap: 15px;
}

/* ===== Floating Elements ===== */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: var(--bg-white);
    border: none;
    border-radius: 50%;
    font-size: 1.3rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

.whatsapp-float {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: var(--bg-white);
    border-radius: 50%;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 999;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

/* Language Modal */
.language-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.language-modal.active {
    opacity: 1;
    visibility: visible;
}

.language-modal-content {
    background: var(--bg-white);
    padding: 60px 40px;
    border-radius: var(--border-radius-lg);
    max-width: 600px;
    width: 90%;
    text-align: center;
}

.language-modal-content h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.language-modal-content p {
    color: var(--text-light);
    margin-bottom: 40px;
}

.language-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.language-option {
    padding: 25px 20px;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
}

.language-option:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.language-option .flag {
    font-size: 3rem;
    display: block;
    margin-bottom: 10px;
}

.language-option .lang-name {
    font-size: 1.1rem;
    font-weight: 600;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        flex-direction: column;
        gap: 40px;
    }
    
    .step-connector {
        display: none;
    }
    
    .order-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .header-actions .lang-btn span {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero {
        padding: calc(var(--header-height) + 40px) 0 60px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-features,
    .hero-cta {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid,
    .reviews-grid,
    .countries-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .btn-large {
        padding: 14px 24px;
        font-size: 1rem;
    }
    
    .language-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Print Styles */
@media print {
    .header,
    .cookie-banner,
    .scroll-to-top,
    .whatsapp-float,
    .language-selector {
        display: none;
    }
}