:root {
    --primary: #1e73be;
    --primary-dark: #165a9c;
    --secondary: #ff6b35;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --border: #dee2e6;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: #fff;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

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

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

.section-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 15px;
    color: var(--dark);
    position: relative;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 50px;
}

/* Header Styles */
header {
    background-color: white;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

.header-scrolled {
    padding: 10px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
}

.logo i {
    color: var(--primary);
    font-size: 28px;
    margin-right: 10px;
}

nav ul {
    display: flex;
    align-items: center;
    gap: 25px;
}

nav ul li a {
    color: var(--dark);
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}

nav ul li a:hover {
    color: var(--primary);
}

nav ul li a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

nav ul li a:hover:after {
    width: 100%;
}

nav ul li.highlight a {
    background-color: var(--primary);
    color: white;
    padding: 8px 20px;
    border-radius: 30px;
    transition: var(--transition);
}

nav ul li.highlight a:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

nav ul li.highlight a:after {
    display: none;
}

.menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--dark);
}

/* Hero Section */
.hero {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, #f0f7ff 0%, #e6f0ff 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

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

.hero-content h1 {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark);
}

.hero-content p {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

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

.hero-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Services Section */
.services {
    padding: 100px 0;
    background-color: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    border: 1px solid var(--border);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: rgba(30, 115, 190, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.service-icon i {
    font-size: 36px;
    color: var(--primary);
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark);
}

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

.service-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

/* Advantages Section */
.advantages {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafd 0%, #f0f7ff 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.advantage-card {
    background: white;
    border-radius: 15px;
    padding: 40px 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.advantage-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 48px;
    font-weight: 800;
    color: rgba(30, 115, 190, 0.05);
    z-index: 1;
}

.advantage-card h3 {
    font-size: 22px;
    margin: 20px 0 15px;
    color: var(--dark);
    position: relative;
    z-index: 2;
}

.advantage-card p {
    color: var(--gray);
    position: relative;
    z-index: 2;
}

/* About Section */
.about {
    padding: 100px 0;
    background-color: white;
}

.about .container {
    display: flex;
    gap: 50px;
    align-items: center;
}

.about-content {
    flex: 1;
}

.about-content p {
    margin-bottom: 25px;
    font-size: 17px;
    line-height: 1.8;
}

.about-features {
    margin: 30px 0;
}

.feature {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    font-size: 17px;
}

.feature i {
    color: var(--primary);
    margin-right: 10px;
    font-size: 20px;
}

.about-stats {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.stat-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.stat-value {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 18px;
    color: var(--dark);
}

/* Reviews Section */
.reviews {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafd 0%, #f0f7ff 100%);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.review-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.review-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.review-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.review-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    margin-right: 15px;
}

.review-author h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.review-rating {
    color: #ffc107;
}

.review-content p {
    color: var(--gray);
    line-height: 1.8;
    font-style: italic;
}

.review-date {
    margin-top: 20px;
    color: var(--gray);
    font-size: 14px;
    text-align: right;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background-color: white;
}

.contact .container {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.contact-item i {
    font-size: 24px;
    color: var(--primary);
    min-width: 40px;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--dark);
}

.contact-item p {
    color: var(--gray);
    line-height: 1.8;
}

.contact-map {
    margin-top: 40px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 300px;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-form {
    flex: 1;
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--dark);
}

.contact-form p {
    color: var(--gray);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 115, 190, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 70px 0 0;
}

.footer-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-info .logo {
    color: white;
    margin-bottom: 20px;
}

.footer-info p {
    color: #a0aec0;
    margin-bottom: 20px;
    line-height: 1.8;
}

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

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

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-5px);
}

.footer-links h4 {
    font-size: 20px;
    margin-bottom: 25px;
    position: relative;
}

.footer-links h4:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

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

.footer-links ul li a {
    color: #a0aec0;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.footer-links ul li a i {
    width: 20px;
    text-align: center;
}

.footer-contacts ul li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    color: #a0aec0;
}

.footer-contacts ul li i {
    color: var(--primary);
    min-width: 20px;
    margin-top: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 25px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    color: #a0aec0;
    font-size: 14px;
}

.footer-links a {
    color: #a0aec0;
    margin-left: 20px;
    transition: var(--transition);
}

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

/* Responsive Design */
@media (max-width: 992px) {
    .hero .container,
    .about .container,
    .contact .container {
        flex-direction: column;
    }
    
    .hero-content,
    .hero-image,
    .about-content,
    .about-stats,
    .contact-info,
    .contact-form {
        width: 100%;
        max-width: 100%;
    }
    
    .hero-image {
        margin-top: 50px;
    }
    
    .about-stats {
        margin-top: 50px;
    }
    
    .section-title {
        font-size: 32px;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    nav ul {
        position: fixed;
        top: 80px;
        left: -100%;
        background: white;
        width: 100%;
        flex-direction: column;
        padding: 30px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        gap: 15px;
        z-index: 999;
    }
    
    nav ul.active {
        left: 0;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .services-grid,
    .advantages-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        margin-top: 15px;
    }
}