/* Основные стили */
:root {
    --primary-color: #686b67;
    --secondary-color: #111111ad;
    --dark-color: #ff0015;
    --light-color: #f8f9fa;
    --success-color: #28a745;
    --danger-color: #dc3545;
}

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

/* Навигация */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

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

.navbar-nav .btn-link {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    padding: 0.5rem 0;
}

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

/* Герой секция */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 100px 0;
    text-shadow: 0 2px 4px rgba(14, 13, 13, 0.89);
}

.hero .display-4 {
    font-weight: 700;
    margin-bottom: 20px;
}

.hero .lead {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* Кнопки */
.btn-light {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    color: #333;
    transition: all 0.3s ease;
}

.btn-light:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-outline-light:hover {
    background: white;
    color: #333;
    transform: translateY(-2px);
}

/* Особенности */
.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.feature-icon:hover {
    transform: scale(1.1);
}

.feature-card {
    padding: 30px 20px;
    border-radius: 15px;
    background: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    margin: 15px 0;
    border: none;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

/* Секции */
section {
    padding: 80px 0;
}

.bg-light {
    background-color: #f8f9fa !important;
}

.bg-dark {
    background-color: #343a40 !important;
}

/* Футер */
footer {
    background: var(--dark-color);
}

/* Анимации */
.animate-fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Иконки */
.fa-3x {
    font-size: 3em;
}

/* Списки */
.list-unstyled li {
    margin-bottom: 0.5rem;
}

/* Адаптивность */
@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
    }
    
    .hero .display-4 {
        font-size: 2rem;
    }
    
    .feature-icon {
        font-size: 2rem;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        margin-bottom: 10px;
        border-radius: 5px !important;
    }
}

/* Тени для изображений */
.img-fluid.rounded.shadow {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Текст */
.text-muted {
    color: #6c757d !important;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
}