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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

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

/* Шапка */
.header {
    background-color: #2c3e50;
    color: white;
    padding: 15px 0;
}

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

.logo h1 {
    font-size: 1.8rem;
    margin: 0;
}

.nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav ul li {
    display: inline;
}

.nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav ul li a:hover {
    color: #3498db;
}

/* Главный экран */
.hero {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    text-align: center;
    padding: 80px 0;
}

.hero h2 {
    font-size: 2.0rem;
    margin-bottom: 10px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    background-color: #e74c3c;
    color: white;
    padding: 12px 24px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #c0392b;
}

/* Услуги */
.services {
    padding: 60px 0;
    background-color: white;
}

.services h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    border: 1px solid #64d4fd;
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-card h3 {
    margin-bottom: 10px;
    color: #2c3e50;
}

/* Контакты */
.contact {
    padding: 60px 0;
    background-color: #ecf0f1;
}

.contact h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2rem;
}

.contact-form {
    max-width: 500px;
    margin: 0 auto 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #3498db;
}

.contact-form textarea {
    resize: vertical;
    min-height: 100px;
}

.contact-info {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.contact-info p {
    margin-bottom: 10px;
    line-height: 1.5;
}

/* Сообщения после отправки */
.success-message,
.error-message {
    margin: 20px 0;
    padding: 15px;
    border-radius: 5px;
    text-align: center;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Футер */
.footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 60px;
}

.footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

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

.social a {
    color: #34dd33;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.social a:hover {
    color: #3498db;
}

/* Адаптивность */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 1.8rem;
    }

    .services h2 {
        font-size: 1.8rem;
    }

    .contact-form,
    .contact-info {
        padding: 0 15px;
    }

    .nav ul {
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }

    .hero h2 {
        font-size: 1.6rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
}