/* =========================================================
   СЛАЙДЕР ПРЕПОДАВАТЕЛЕЙ
   ========================================================= */

/* 1. Wrapper */
.online-teachers-wrapper {
    position: relative;
    width: 100%;
    overflow: visible;
}

/* 2. Container: горизонтальный скролл */
.online-teachers-container {
    display: flex;
    align-items: stretch;
    gap: 1.5rem;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 1rem 4rem 2rem 4rem;
    scroll-behavior: auto; /* ✅ важно: переопределяем глобальный smooth из league.css */
    cursor: grab;
    user-select: none;
    -ms-overflow-style: none;
    scrollbar-width: none;
    overscroll-behavior-x: contain;
}

@media (min-width: 768px) {
    .online-teachers-container {
        padding-left: 200px;
        padding-right: 200px;
    }
}

.online-teachers-container::-webkit-scrollbar { display: none; }
.online-teachers-container.grabbing { cursor: grabbing; }

/* 3. Карточка преподавателя */
.online-teacher-item {
    flex: 0 0 300px;
    min-width: 300px;
    align-self: stretch;
    display: flex;
    transition: opacity 0.15s ease;
}

/* 4. algo-card */
.online-teacher-card {
    padding: 0 20px 24px !important;
    text-align: center;
    width: 100%;
    transition: transform 0.35s ease;
    display: flex;
    flex-direction: column;
}

.online-teacher-card:hover {
    transform: translateY(-6px);
}

/* 5. Фото */
.online-teacher-photo {
    width: calc(100% + 40px);
    height: 360px;
    margin: -20px -20px 18px -20px;
    border-radius: 20px 20px 0 0;
    overflow: hidden;
    background: linear-gradient(135deg, #dbeafe 0%, #f1f3f5 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.online-teacher-avatar {
    width: 95%;
    height: 95%;
    object-fit: cover;
    object-position: center 20%;
    display: block;
    border-radius: 12px;
    transition: transform 0.6s ease, opacity 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.online-teacher-card:hover .online-teacher-avatar {
    transform: scale(1.04);
}

.online-teacher-avatar.loading { opacity: 0.4; }

.online-teacher-avatar-placeholder {
    width: 85%;
    height: 85%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: #fff;
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: 2px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 6. ФИО и должность */
.online-teacher-card .h5 {
    font-size: 1.1rem;
    line-height: 1.3;
    letter-spacing: -0.01em;
    text-transform: uppercase;
}

.online-teacher-card .h6 {
    font-size: 0.9rem;
    color: #6c757d;
    line-height: 1.3;
}

/* 7. Цитата */
.online-teacher-card p {
    font-size: 0.88rem;
    color: #495057;
    line-height: 1.5;
    margin-top: 0.65rem !important;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 8. Бейдж стажа */
.online-teacher-card .algo-card__photo-badge {
    top: 10px !important;
    right: 10px !important;
    font-size: 0.72rem !important;
    padding: 0.35rem 0.75rem !important;
    z-index: 3;
}

/* 9. Кнопка-подсказка */
.online-teachers-hint {
    display: flex;
    position: absolute;
    right: 32px;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid #dc3545;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 15;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    color: #dc3545;
    font-size: 1.1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.1s ease, background-color 0.2s ease, color 0.2s ease;
}

.online-teachers-hint.visible {
    opacity: 1;
    pointer-events: auto;
    animation: swipeHintOnlineTeachers 1.5s infinite ease-in-out;
}

.online-teachers-hint.visible:hover,
.online-teachers-hint.visible:active {
    animation: none;
    transform: translateY(-50%) scale(0.9);
    background: #dc3545;
    color: #fff;
}

/* 10. Индикатор загрузки */
.online-teachers-loader {
    flex: 0 0 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.online-teachers-loader.visible { opacity: 1; }

.online-teachers-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(30, 58, 138, 0.2);
    border-radius: 50%;
    border-top-color: #dc3545;
    animation: spinOnlineTeachers 1s ease-in-out infinite;
}

/* =========================================================
   АНИМАЦИИ
   ========================================================= */
@keyframes swipeHintOnlineTeachers {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50%      { transform: translateY(-50%) translateX(8px); }
}

@keyframes spinOnlineTeachers {
    to { transform: rotate(360deg); }
}

/* =========================================================
   МОБИЛЬНАЯ АДАПТАЦИЯ
   Здесь же — все свойства для нативного свайпа
   ========================================================= */
@media (max-width: 768px) {
    .online-teachers-container {
        padding: 1rem 2rem 2rem 2rem;
        gap: 1rem;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
    }

    .online-teacher-item {
        flex: 0 0 250px;
        min-width: 250px;
        scroll-snap-align: start;
    }

    .online-teacher-photo { height: 320px; }

    .online-teacher-avatar,
    .online-teacher-avatar-placeholder {
        width: 80%;
        height: 80%;
    }

    .online-teacher-card .h5 { font-size: 1rem; }
    .online-teacher-card .h6 { font-size: 0.82rem; }
    .online-teacher-card p { font-size: 0.82rem; }

    .online-teachers-hint { right: 16px; }
}

@media (max-width: 480px) {
    .online-teachers-container {
        padding: 1rem 1.5rem 2rem 1.5rem;
    }

    .online-teacher-item {
        flex: 0 0 230px;
        min-width: 230px;
    }

    .online-teacher-photo { height: 280px; }

    .online-teacher-avatar-placeholder { font-size: 2.3rem; }
}