/* ==========================================
   Блок "Почему выбирают нас" / Преимущества
   ========================================== */

/* Секция */
.advantages {
    padding: 80px 0;
    background: linear-gradient(180deg, #0D1117 0%, #161B22 100%);
    position: relative;
    overflow: hidden;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 53, 0.3), transparent);
}

/* Сетка карточек 2x2 */
.advantages__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

/* Карточка преимущества */
.advantage-card {
    position: relative;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 32px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

.advantage-card:hover,
.advantage-card:focus {
    background: linear-gradient(145deg, rgba(255, 107, 53, 0.08), rgba(255, 107, 53, 0.02));
    border-color: rgba(255, 107, 53, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    outline: none;
}

.advantage-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

/* Бейдж "Уникально" */
.advantage-card__badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.advantage-card__badge--unique {
    background: linear-gradient(135deg, #FF6B35, #FF8F5A);
    color: white;
}

/* Иконка */
.advantage-card__icon {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
    color: var(--accent, #FF6B35);
}

.advantage-card__icon svg {
    width: 100%;
    height: 100%;
}

/* Контент */
.advantage-card__content {
    flex: 1;
}

.advantage-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin: 0 0 12px 0;
    line-height: 1.3;
}

.advantage-card__text {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
    margin: 0 0 16px 0;
}

/* Статистика */
.advantage-card__stats {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.advantage-card__stats-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent, #FF6B35);
    line-height: 1;
}

.advantage-card__stats-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* Футер карточки */
.advantage-card__footer {
    margin-top: 16px;
}

.advantage-card__link {
    font-size: 0.9rem;
    color: var(--accent, #FF6B35);
    font-weight: 500;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.advantage-card:hover .advantage-card__link,
.advantage-card:focus .advantage-card__link {
    opacity: 1;
    transform: translateX(0);
}

/* Всплывающая подсказка */
.advantage-card__tooltip {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(22, 27, 34, 0.98);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: 12px;
    padding: 16px 20px;
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    pointer-events: none;
}

.advantage-card__tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: rgba(22, 27, 34, 0.98);
}

.advantage-card:hover .advantage-card__tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.advantage-card__tooltip strong {
    display: block;
    color: var(--accent, #FF6B35);
    margin-bottom: 8px;
    font-size: 0.85rem;
}

.advantage-card__tooltip ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.advantage-card__tooltip li {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
    padding: 4px 0;
    padding-left: 16px;
    position: relative;
}

.advantage-card__tooltip li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #22C55E;
    font-size: 0.75rem;
}

/* CTA блок */
.advantages__cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.05));
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: 16px;
    padding: 24px 32px;
    gap: 24px;
}

.advantages__cta-content {
    flex: 1;
}

.advantages__cta-text {
    font-size: 1.1rem;
    color: white;
    margin: 0 0 12px 0;
    font-weight: 500;
}

.advantages__cta-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.advantages__cta-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s ease;
}

.advantages__cta-link:hover {
    color: var(--accent, #FF6B35);
}

.advantages__cta-link svg {
    opacity: 0.7;
}

.advantages__cta-btn {
    flex-shrink: 0;
    padding: 14px 32px;
}

/* ==========================================
   Модальное окно
   ========================================== */

.advantage-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.advantage-modal.active {
    opacity: 1;
    visibility: visible;
}

.advantage-modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.advantage-modal__content {
    position: relative;
    background: linear-gradient(180deg, #1C2128 0%, #161B22 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    max-width: 560px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

.advantage-modal.active .advantage-modal__content {
    transform: scale(1) translateY(0);
}

.advantage-modal__close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.6);
    transition: all 0.2s ease;
}

.advantage-modal__close:hover {
    background: rgba(255, 107, 53, 0.2);
    color: var(--accent, #FF6B35);
}

.advantage-modal__icon {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
    color: var(--accent, #FF6B35);
}

.advantage-modal__icon svg {
    width: 100%;
    height: 100%;
}

.advantage-modal__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin: 0 0 16px 0;
}

.advantage-modal__desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin: 0 0 24px 0;
}

.advantage-modal__facts,
.advantage-modal__documents {
    margin-bottom: 24px;
}

.advantage-modal__facts h4,
.advantage-modal__documents h4 {
    font-size: 0.9rem;
    color: var(--accent, #FF6B35);
    margin: 0 0 12px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.advantage-modal__facts ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.advantage-modal__facts li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.advantage-modal__facts li:last-child {
    border-bottom: none;
}

.advantage-modal__facts li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #22C55E;
    font-weight: bold;
}

.advantage-modal__docs-list {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.advantage-modal__doc-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.advantage-modal__doc-link:hover {
    background: rgba(255, 107, 53, 0.1);
    border-color: rgba(255, 107, 53, 0.3);
    color: var(--accent, #FF6B35);
}

.advantage-modal__actions {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.advantage-modal__actions .btn {
    flex: 1;
    text-align: center;
    justify-content: center;
}

/* ==========================================
   Адаптивность
   ========================================== */

@media (max-width: 1024px) {
    .advantages__grid {
        gap: 20px;
    }
    
    .advantage-card {
        padding: 24px;
        min-height: 260px;
    }
}

@media (max-width: 768px) {
    .advantages {
        padding: 60px 0;
    }
    
    /* Вертикальный список на мобиле */
    .advantages__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .advantage-card {
        min-height: auto;
        padding: 20px;
        flex-direction: row;
        align-items: flex-start;
        gap: 16px;
    }
    
    .advantage-card__icon {
        width: 48px;
        height: 48px;
        flex-shrink: 0;
        margin-bottom: 0;
    }
    
    .advantage-card__content {
        flex: 1;
    }
    
    .advantage-card__title {
        font-size: 1.1rem;
    }
    
    .advantage-card__text {
        font-size: 0.9rem;
        margin-bottom: 8px;
    }
    
    .advantage-card__stats {
        padding-top: 12px;
        flex-direction: column;
        gap: 2px;
    }
    
    .advantage-card__stats-value {
        font-size: 1.5rem;
    }
    
    .advantage-card__footer {
        display: none;
    }
    
    .advantage-card__badge {
        top: 12px;
        right: 12px;
        font-size: 10px;
        padding: 3px 8px;
    }
    
    /* Скрыть tooltip на мобиле (показывать modal) */
    .advantage-card__tooltip {
        display: none;
    }
    
    /* CTA блок */
    .advantages__cta {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }
    
    .advantages__cta-links {
        justify-content: center;
    }
    
    .advantages__cta-btn {
        width: 100%;
    }
    
    /* Модальное окно */
    .advantage-modal__content {
        padding: 24px;
        border-radius: 16px;
    }
    
    .advantage-modal__icon {
        width: 60px;
        height: 60px;
    }
    
    .advantage-modal__title {
        font-size: 1.25rem;
    }
    
    .advantage-modal__actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .advantages__cta-links {
        flex-direction: column;
        gap: 12px;
    }
    
    .advantage-card {
        padding: 16px;
    }
    
    .advantage-card__icon {
        width: 40px;
        height: 40px;
    }
}

/* ==========================================
   Анимации
   ========================================== */

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

.advantage-card.animate-on-scroll.visible {
    animation: fadeInUp 0.6s ease forwards;
}

.advantage-card:nth-child(1).visible { animation-delay: 0.1s; }
.advantage-card:nth-child(2).visible { animation-delay: 0.2s; }
.advantage-card:nth-child(3).visible { animation-delay: 0.3s; }
.advantage-card:nth-child(4).visible { animation-delay: 0.4s; }

/* ==========================================
   Accessibility
   ========================================== */

@media (prefers-reduced-motion: reduce) {
    .advantage-card,
    .advantage-modal,
    .advantage-modal__content {
        transition: none;
    }
    
    .advantage-card.animate-on-scroll.visible {
        animation: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .advantage-card {
        border-color: white;
    }
    
    .advantage-card__title {
        color: white;
    }
    
    .advantage-card__text {
        color: white;
    }
}