/* === PHẦN CẢM NHẬN HỌC VIÊN === */
.reviews-section {
    background: #f8f9fa;
    padding: 60px 0;
    text-align: center;
    overflow: hidden;
}
.reviews-section .section-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 20px;
}
.reviews-section .section-subtitle {
    font-size: 18px;
    color: #555;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.reviews-carousel-container {
    position: relative;
    overflow: hidden;
    padding: 0 15px;
}
.reviews-carousel {
    display: flex;
    transition: transform 0.6s ease;
    gap: 25px;
}
.review-card {
    background: white;
    border-radius: 14px;
    padding: 28px;
    min-width: calc((100% - 50px) / 3);
    max-width: calc((100% - 50px) / 3);
    flex: 0 0 auto;
    box-shadow: 0 4px 16px rgba(0,0,0,0.07);
    transition: all 0.3s ease;
}
.review-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0,0,0,0.14);
}
.review-avatar {
    width: 72px; height: 72px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 18px;
    border: 3px solid #e8e8e8;
}
.review-name { font-size: 18px; font-weight: 600; color: #1a1a1a; margin-bottom: 6px; }
.review-role { font-size: 14px; color: #777; margin-bottom: 14px; }
.review-text { font-size: 15px; color: #444; line-height: 1.7; font-style: italic; }
.review-stars { color: #f39c12; font-size: 18px; margin-top: 14px; }

/* Dots */
.review-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}
.review-dot {
    width: 11px; height: 11px;
    background: #ddd;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
}
.review-dot.active { background: #3498db; transform: scale(1.2); }

/* === PHẦN ĐÁNH GIÁ CHUYÊN GIA === */
.expert-section {
    padding: 70px 0;
    background: white;
    overflow: hidden;
}
.expert-container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 15px;
    text-align: center;
}
.expert-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 50px;
}
.expert-carousel-container {
    position: relative;
    overflow: hidden;
    padding: 0 15px;
}
.expert-carousel {
    display: flex;
    transition: transform 0.6s ease;
    gap: 25px;
}
.expert-card {
    background: #f0f7ff;
    border-radius: 14px;
    padding: 28px;
    min-width: calc((100% - 84px) / 4);
    max-width: calc((100% - 84px) / 4);
    flex: 0 0 auto;
    position: relative;
    overflow: hidden;
}
.expert-card::before {
    content: '"';
    font-size: 130px;
    color: #a0d8ff;
    position: absolute;
    top: -35px;
    left: 15px;
    font-family: Georgia, serif;
    opacity: 0.3;
}
.expert-avatar {
    width: 62px; height: 62px;
    border-radius: 50%;
    object-fit: cover;
    float: left;
    margin-right: 16px;
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.expert-info { overflow: hidden; }
.expert-name { font-size: 17px; font-weight: 600; color: #1a1a1a; margin: 0 0 4px 0; }
.expert-position { font-size: 14px; color: #2e86de; margin: 0 0 14px 0; font-weight: 500; }
.expert-quote { font-size: 15px; color: #333; line-height: 1.7; margin-top: 10px; font-style: italic; }
.expert-stars { color: #f39c12; font-size: 17px; margin-top: 12px; }

/* Responsive */
@media (max-width: 992px) {
    .review-card, .expert-card {
        min-width: calc((100% - 36px) / 2);
        max-width: calc((100% - 36px) / 2);
    }
    .reviews-carousel, .expert-carousel { gap: 18px; }
}
@media (max-width: 768px) {
    .review-card, .expert-card {
        min-width: 100%;
        max-width: 100%;
    }
    .reviews-carousel-container, .expert-carousel-container { padding: 0 10px; }
    .reviews-carousel, .expert-carousel { gap: 15px; }
}