/* Основные переменные цветов */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --success-color: #198754;
}

/* Общие стили */
body {
    font-family: 'Roboto', sans-serif;
    color: var(--dark-color);
    line-height: 1.6;
}

a {
    text-decoration: none;
}

/* Навигация */
.navbar {
    transition: all 0.3s ease;
    padding: 1rem;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 1px;
}

.nav-link {
    font-weight: 500;
    color: var(--dark-color) !important;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color) !important;
}

/* Секция героя */
.hero-section {
    background: linear-gradient(rgba(13, 110, 253, 0.8), rgba(13, 110, 253, 0.9)), url("../img/hero-bg.jpg") center/cover no-repeat;
    color: white;
    padding: 9rem 0;
}

.hero-section h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

/* Заголовки секций */
.section-title {
    position: relative;
    margin-bottom: 3rem;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 100px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Карточки */
.card {
    border: none;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.card-img-top {
    height: 220px;
    object-fit: cover;
}

.card-title {
    font-weight: 600;
}

/* Блоки с иконками */
.icon-box {
    padding: 2rem;
    text-align: center;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.icon-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.icon-box i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.icon-box h4 {
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Подвал */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 3rem 0;
}

.footer h4 {
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
}

.footer a:hover {
    color: white;
}

.social-icons a {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    margin-right: 1rem;
    transition: all 0.3s ease;
}

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

/* Кнопки */
.btn-custom {
    padding: 0.8rem 2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0b5ed7;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(13, 110, 253, 0.4);
}

.btn-light:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

/* Контактная форма */
.contact-form .form-control {
    padding: 0.8rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
    border: 1px solid #ddd;
}

.contact-form .form-control:focus {
    box-shadow: none;
    border-color: var(--primary-color);
}

/* Медиа-запросы */
@media (max-width: 768px) {
    .hero-section {
        padding: 6rem 0;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .section-title {
        margin-bottom: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .btn-custom {
        padding: 0.6rem 1.5rem;
    }
}