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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Nav */
nav {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}

nav a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 12px;
    border-radius: 15px;
    transition: all 0.2s;
    white-space: nowrap;
}

nav a:hover {
    background: rgba(255,255,255,0.15);
    color: white;
}

@media (max-width: 1024px) {
    nav { display: none; }
}

/* Header */
header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1e3c72;
    font-weight: bold;
    font-size: 18px;
    flex-shrink: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.phone {
    font-size: 20px;
    font-weight: bold;
    color: white;
    text-decoration: none;
    white-space: nowrap;
}

.phone:hover {
    color: #ffd700;
}

.lang-switch {
    position: relative;
}

.lang-btn {
    background: rgba(255,255,255,0.2);
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: #2a5298;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    min-width: 60px;
}

.lang-switch:hover .lang-dropdown {
    display: block;
}

.lang-dropdown a {
    display: block;
    width: 100%;
    padding: 8px 16px;
    background: none;
    color: white;
    text-align: left;
    text-decoration: none;
}

.lang-dropdown a:hover {
    background: #1e3c72;
}

.lang-active {
    opacity: 0.6;
    cursor: default;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(30,60,114,0.75), rgba(42,82,152,0.85)), url('/img/hero-bg.jpg') center/cover no-repeat;
    color: white;
    padding: 160px 20px 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="white" opacity="0.1"/></svg>') repeat;
    animation: snow 20s linear infinite;
}

@keyframes snow {
    0% { transform: translateY(0); }
    100% { transform: translateY(100px); }
}

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

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 24px;
    margin-bottom: 30px;
}

.price-highlight {
    font-size: 36px;
    font-weight: bold;
    color: #ffd700;
    margin: 20px 0;
}

.hero-phone {
    font-size: 32px;
    font-weight: bold;
    color: white;
    text-decoration: none;
    margin: 30px 0;
    display: inline-block;
}

.hero-phone:hover {
    color: #ffd700;
}

.cta-button {
    display: inline-block;
    background: #ffd700;
    color: #1e3c72;
    padding: 18px 50px;
    font-size: 20px;
    font-weight: bold;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.6);
}

/* About Section */
.about {
    padding: 80px 20px;
    background: #f8f9fa;
}

.about h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 20px;
    color: #1e3c72;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    font-size: 18px;
    line-height: 1.8;
}

.about-highlight {
    background: white;
    padding: 30px;
    border-radius: 15px;
    margin-top: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

/* Applications Section */
.applications {
    padding: 80px 20px;
    background: white;
}

.applications h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #1e3c72;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.app-card {
    background: white;
    padding: 20px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(30, 60, 114, 0.15);
}

.app-image-wrapper {
    width: 200px;
    height: 200px;
    margin: 0 auto 25px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 5px 25px rgba(0,0,0,0.15);
    border: 5px solid white;
}

.app-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.app-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333;
    font-weight: 600;
}

.app-card p {
    font-size: 15px;
    color: #666;
    line-height: 1.5;
}

/* Equipment Section */
.equipment {
    padding: 80px 20px;
    background: #f8f9fa;
}

.equipment h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #1e3c72;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.equipment-item {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    text-align: center;
}

.equipment-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 15px;
    margin: 0 auto 20px;
    display: block;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

.equipment-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #1e3c72;
}

/* Advantages Section */
.advantages {
    padding: 80px 20px;
    background: white;
}

.advantages h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #1e3c72;
}

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

.adv-card {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s;
}

.adv-card:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(30, 60, 114, 0.3);
}

.adv-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.adv-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

/* Stats Section */
.stats {
    padding: 80px 20px;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 48px;
    font-weight: bold;
    color: #ffd700;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 18px;
}

/* FAQ Section */
.faq {
    padding: 80px 20px;
    background: #f8f9fa;
}

.faq h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #1e3c72;
}

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

.faq details {
    background: white;
    border-radius: 10px;
    padding: 20px 25px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.faq summary {
    font-weight: 600;
    font-size: 18px;
    cursor: pointer;
    color: #1e3c72;
}

.faq details p {
    margin-top: 15px;
    line-height: 1.8;
    color: #555;
}

/* Footer */
footer {
    background: #1e3c72;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

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

.footer-section h3 {
    margin-bottom: 15px;
    color: #ffd700;
}

.footer-section p,
.footer-section a {
    color: white;
    text-decoration: none;
    line-height: 1.8;
}

.footer-section a:hover {
    color: #ffd700;
}

.footer-phone {
    font-size: 24px;
    font-weight: bold;
    margin: 20px 0;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        padding: 0 10px;
    }

    .header-right {
        width: 100%;
        justify-content: center;
        gap: 15px;
    }

    .hero {
        padding: 140px 15px 80px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 20px;
    }

    .price-highlight {
        font-size: 32px;
    }

    .hero-phone {
        font-size: 28px;
    }

    .cta-button {
        padding: 15px 40px;
        font-size: 18px;
    }

    .app-grid,
    .adv-grid,
    .equipment-grid {
        grid-template-columns: 1fr;
    }

    .app-image-wrapper {
        width: 180px;
        height: 180px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 24px;
    }

    .logo-icon {
        width: 35px;
        height: 35px;
        font-size: 16px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 18px;
    }

    .price-highlight {
        font-size: 28px;
    }

    .hero-phone {
        font-size: 26px;
    }

    .cta-button {
        padding: 14px 35px;
        font-size: 17px;
    }

    .phone {
        font-size: 18px;
    }

    .app-image-wrapper {
        width: 160px;
        height: 160px;
    }
}