/**
 * Секция "Преимущества компании"
 * Стеклянные карточки с аккордеоном
 */

.advantages-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #E8F4F8 0%, #F0F8FF 100%);
    position: relative;
    overflow: hidden;
}

.advantages-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="1" fill="rgba(42,119,255,0.05)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.advantages-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.advantages-header {
    text-align: center;
    margin-bottom: 4rem;
}

.advantages-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1F2933;
    margin-bottom: 1rem;
}

.advantages-subtitle {
    font-size: 1.2rem;
    color: #6B7280;
}

/* Сетка карточек */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: start;
}

.advantages-grid-bottom {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
    align-items: start;
}

/* Карточка преимущества */
.advantage-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(18px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
    display: flex;
    flex-direction: column;
}

.advantage-card:nth-child(1) {
    animation-delay: 0.1s;
}

.advantage-card:nth-child(2) {
    animation-delay: 0.2s;
}

.advantage-card:nth-child(3) {
    animation-delay: 0.3s;
}

.advantage-card:nth-child(4) {
    animation-delay: 0.4s;
}

.advantage-card:nth-child(5) {
    animation-delay: 0.5s;
}

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

.advantage-card:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 12px 48px rgba(42, 119, 255, 0.2);
    border-color: rgba(42, 119, 255, 0.4);
}

.advantage-card:hover .advantage-more {
    color: #2A77FF;
}

.advantage-card:hover .advantage-more-arrow {
    transform: translateX(5px);
}

.advantage-card.active {
    border-color: rgba(42, 119, 255, 0.5);
    box-shadow: 0 12px 48px rgba(42, 119, 255, 0.25);
}

/* Иконка */
.advantage-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(42, 119, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.advantage-card:hover .advantage-icon {
    background: rgba(42, 119, 255, 0.2);
    transform: scale(1.1);
}

.advantage-icon svg {
    width: 32px;
    height: 32px;
}

/* Заголовок карточки */
.advantage-card-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1F2933;
    margin-bottom: 1rem;
}

/* Краткий текст */
.advantage-card-short {
    font-size: 1rem;
    color: #6B7280;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

/* Кнопка "Подробнее" */
.advantage-more {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #2A77FF;
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: auto;
    transition: all 0.3s ease;
    padding-top: 1rem;
    border-top: 1px solid rgba(42, 119, 255, 0.2);
}

.advantage-card.active .advantage-more {
    display: none;
}

.advantage-more-text {
    transition: color 0.3s ease;
}

.advantage-more-arrow {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.advantage-card.active .advantage-more-arrow {
    transform: rotate(90deg);
}

/* Раскрывающийся блок */
.advantage-expand {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease, margin 0.4s ease;
    opacity: 0;
    padding: 0;
    margin-top: 0;
    margin-bottom: 0;
}

.advantage-expand.active {
    opacity: 1;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    margin-bottom: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
}

.advantage-expand-content {
    font-size: 1rem;
    color: #4B5563;
    line-height: 1.8;
}

/* Адаптивность */
@media (max-width: 992px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid-bottom {
        grid-template-columns: 1fr;
    }
    
    .advantages-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .advantages-section {
        padding: 3rem 0;
    }
    
    .advantages-header {
        margin-bottom: 2.5rem;
    }
    
    .advantages-title {
        font-size: 1.75rem;
    }
    
    .advantages-subtitle {
        font-size: 1rem;
    }
    
    .advantage-card {
        padding: 1.5rem;
    }
    
    .advantage-card-title {
        font-size: 1.25rem;
    }
}