:root {
    --primary-color: #FF6B8B;
    --secondary-color: #4ECDC4;
    --accent-color: #FFD166;
    --dark-text: #2D3047;
    --light-bg: #FFF9F5;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding-top: 56px;
    background-color: var(--light-bg);
    color: var(--dark-text);
}

html {
    scroll-behavior: smooth;
}

/* Главный баннер с градиентом */
header {
    background: linear-gradient(135deg, rgba(255, 107, 139, 0.1) 0%, rgba(78, 205, 196, 0.1) 100%);
    padding: 5rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

/* Навигация */
.navbar {
    background: rgba(255, 249, 245, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.navbar-brand {
    font-size: 1.5rem;
    color: var(--primary-color) !important;
}

/* Карточки с градиентом и тенями */
.card {
    transition: all 0.3s ease;
    border-radius: 16px;
    overflow: hidden;
    border: none;
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.1);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 20px rgba(0,0,0,0.1), 0 6px 12px rgba(0,0,0,0.08);
}

.card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.card-link:hover {
    text-decoration: none;
    color: inherit;
}

.card-link .card {
    transition: all 0.3s ease;
}

.card-link:hover .card {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

/* Секция тем с легким фоном */
#topics {
    background: linear-gradient(135deg, rgba(255, 209, 102, 0.05) 0%, rgba(78, 205, 196, 0.05) 100%);
}

/* Кнопки */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #FF8E8E);
    border: none;
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #FF4757, #FF6B8B);
    border: none;
}

.btn-info {
    background: linear-gradient(135deg, #2ED8D8, #4ECDC4);
    border: none;
}

.btn-lg {
    border-radius: 50px;
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-lg:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

/* Форма */
form .form-control {
    border-radius: 12px;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(0,0,0,0.1);
    transition: all 0.3s;
}

form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(255, 107, 139, 0.25);
}

/* Подвал */
footer {
    background: linear-gradient(135deg, #2D3047 0%, #1a1c2b 100%);
    color: #fff;
    border-top: 5px solid var(--primary-color);
    margin-top: 3rem;
}

footer a:hover {
    color: var(--secondary-color) !important;
}

/* Анимации */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card, header {
    animation: fadeInUp 0.6s ease-out;
}

/* Адаптивность */
@media (max-width: 768px) {
    .display-5 {
        font-size: 2.2rem;
    }
    
    header {
        padding: 3rem 0;
    }
    
    .btn-lg {
        padding: 0.6rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .mt-5 {
        margin-top: 1.5rem !important;
    }
}

/* Дополнительные эффекты */
.img-fluid {
    max-height: 400px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.border-bottom {
    border-bottom: 2px solid rgba(255, 107, 139, 0.2) !important;
}

/* Адаптивность футера для мобильных устройств */
@media (max-width: 768px) {
    footer {
        padding-top: 1.5rem !important;
        padding-bottom: 1.5rem !important;
    }
    
    footer .row {
        margin-bottom: 0;
    }
    
    footer .col-md-6 {
        text-align: center !important;
        margin-bottom: 1.5rem;
    }
    
    footer .col-md-6:last-child {
        margin-bottom: 0;
    }
    
    footer h5 {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }
    
    footer p {
        font-size: 0.9rem;
        margin-bottom: 0.75rem;
        line-height: 1.4;
    }
    
    footer .mt-3 {
        margin-top: 1rem !important;
    }
    
    footer .me-3 {
        margin-right: 1rem !important;
        margin-left: 0.5rem;
    }
    
    footer .fs-5 {
        font-size: 1.2rem !important;
    }
}

/* Дополнительно можно добавить для очень маленьких экранов */
@media (max-width: 576px) {
    footer {
        padding-top: 1rem !important;
        padding-bottom: 1rem !important;
    }
    
    footer .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    
    footer h5 {
        font-size: 1rem;
    }
    
    footer p {
        font-size: 0.85rem;
    }
    
    footer .me-3 {
        margin-right: 0.75rem !important;
        margin-left: 0.25rem;
    }
}