:root {
    --primary-color: #28a745; /* Зеленый */
    --primary-dark: #1e7e34;
    --bg-dark: #121212;
    --bg-light: #1a1a1a;
    --text-white: #f8f8f8;
    --text-gray: #b0b0b0;
    --border-color: #333;
    --max-width: 1200px;
}

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

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

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

/* Шапка */
.header {
    background-color: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.header .logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}
.header .nav {
    display: flex;
    gap: 40px;
}
.header .nav a {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}
.header .nav a:hover {
    color: var(--text-white);
}
.nav-phone {
    color: var(--primary-color) !important;
    font-weight: 600 !important;
}

/* Главный экран */
.hero {
    background-color: var(--bg-light);
    padding: 100px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}
.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}
.hero .subtitle {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.hero-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
    padding: 18px 40px;
    text-decoration: none;
    font-weight: 600;
    border-radius: 8px;
    transition: background-color 0.2s;
}
.btn-primary:hover {
    background-color: var(--primary-dark);
}
.btn-phone {
    background-color: transparent;
    color: var(--primary-color);
    padding: 18px 40px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    transition: background-color 0.2s;
}
.btn-phone:hover {
    background-color: var(--primary-dark);
    color: #fff;
}

/* Преимущества */
.features {
    background-color: var(--bg-dark);
    padding: 100px 0;
    border-bottom: 1px solid var(--border-color);
}
.features h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}
.feature-item {
    text-align: center;
    background-color: var(--bg-light);
    padding: 30px 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}
.feature-icon {
    font-size: 48px;
    margin-bottom: 15px;
}
.feature-item h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--primary-color);
}
.feature-item p {
    color: var(--text-gray);
    font-size: 15px;
}

/* Плитки услуг */
.services {
    background-color: var(--bg-dark);
    padding: 100px 0;
    border-bottom: 1px solid var(--border-color);
}
.services h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}
.service-card {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: inherit;
    display: block;
    transition: transform 0.2s, border-color 0.2s;
}
.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}
.service-icon {
    font-size: 40px;
    margin-bottom: 15px;
}
.service-card h3 {
    font-size: 24px;
    margin-bottom: 12px;
    color: var(--text-white);
}
.service-card p {
    color: var(--text-gray);
    font-size: 15px;
    margin-bottom: 20px;
    flex-grow: 1;
}
.btn-link {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
}
.btn-link::after {
    content: ' →';
}

/* Подвал */
.footer {
    background-color: var(--bg-dark);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}
.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}
.footer-col h4 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--primary-color);
}
.footer-col a, .footer-col p {
    display: block;
    color: var(--text-gray);
    text-decoration: none;
    margin-bottom: 12px;
    font-size: 15px;
}
.footer-col a:hover {
    color: var(--text-white);
}
.footer-bottom {
    text-align: center;
    color: #555;
    font-size: 14px;
    padding-top: 20px;
    border-top: 1px solid #333;
}

/* Адаптив */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }
    .hero .subtitle {
        font-size: 18px;
    }
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    .btn-primary, .btn-phone {
        width: 100%;
        max-width: 300px;
    }
}