/* Course Banner Styles */
.course-banner {
    min-height: 340px;
    position: relative;
    overflow: hidden;
}
.course-banner-bg {
    object-fit: cover;
    width: 100vw;
    height: 100%;
    left: 0;
    top: 0;
    z-index: 1;
}
.course-banner-overlay {
    background: rgba(24, 49, 63, 0.65);
    z-index: 2;
}
.course-banner .container {
    z-index: 3;
    position: relative;
}
.course-label {
    font-size: 1.1rem;
    font-weight: 600;
    background: #fff;
    color: #222;
    border-radius: 32px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
    display: inline-block;
}

/* Instructor Cover Image Styles */
.instructor-cover {
    height: 200px;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.instructor-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.instructor-cover:hover img {
    transform: scale(1.05);
}

/* Course Features Box (Right) */
.course-features-box {
    border-radius: 18px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
    background: #fff;
}
.course-features-header {
    background: #156481;
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 18px 18px 0 0;
}

.video-header {
    background: #156481;
}

.video-container {
    padding: 1rem;
}

.video-container iframe {
    border-radius: 0.5rem;
}
.course-features-box .list-group-item {
    border: none;
    font-size: 1.05rem;
    background: #fff;
    padding: 0.85rem 1.2rem;
}
.text-orange {
    color: #ff7043 !important;
}
.btn-orange {
    background: #ff7043;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    transition: background 0.2s, color 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.btn-orange:hover {
    background: #125875;
    color: #fff;
}
.icon-btn {
    background: #fff;
    color: #156481;
    border: none;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-left: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: background 0.2s, color 0.2s;
}
.icon-btn:hover {
    background: #ff7043;
    color: #fff;
}

/* What Learn Box (Left) */
.what-learn-box {
    border: 2px solid #eaf3fb;
    background: #fff;
    border-radius: 18px;
    margin-top: 2rem;
}
.learn-check-icon {
    color: #ff7043;
    background: #fff6ee;
    border-radius: 6px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-top: 2px;
    margin-right: 8px;
}

/* About Instructor Section */
.about-instructor-section {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    padding: 2rem 2rem 1.5rem 2rem;
    margin-bottom: 2rem;
}
.instructor-img {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
.instructor-subtitle {
    font-size: 1rem;
    color: #888;
}
.instructor-desc {
    font-size: 1.05rem;
    color: #444;
    max-width: 700px;
}

/* Student Feedback Section */
.student-feedback-section {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    padding: 2rem 2rem 1.5rem 2rem;
    margin-bottom: 2rem;
}
.feedback-rating {
    font-size: 2.8rem;
    color: #222;
}
.feedback-rating-label {
    font-size: 1.1rem;
    color: #888;
}
.feedback-progress {
    height: 16px;
    background: #f5f5f5;
    border-radius: 8px;
}
.feedback-percent {
    font-size: 1rem;
    min-width: 32px;
    color: #888;
}

/* Reviews Section */
.reviews-section {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    padding: 2rem 2rem 1.5rem 2rem;
}
.review-label {
    font-size: 1.08rem;
    color: #444;
    min-width: 70px;
    font-weight: 500;
}
.review-stars i {
    font-size: 1.3rem;
    color: #e0e0e0;
    margin-right: 2px;
}
.review-stars i.text-muted {
    color: #b0b0b0;
}

/* Interactive Star Rating */
.star-rating {
    display: inline-flex;
    gap: 4px;
    cursor: pointer;
}

.star-item {
    color: #e0e0e0;
    font-size: 1.3rem;
    transition: color 0.2s ease, transform 0.2s ease;
    cursor: pointer;
    position: relative;
    margin-right: 2px;
    transform-origin: center;
}

.star-item:hover {
    transform: scale(1.15);
    color: #ffc107;
}

.star-item.star-hover {
    color: #ffc107;
    transform: scale(1.15);
}

.star-item.star-selected {
    color: #ffc107;
    transform: scale(1.05);
}

.star-item.star-filled {
    color: #ffc107;
}

/* Star Rating Animation */
@keyframes starPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.3);
    }
    100% {
        transform: scale(1.1);
    }
}

.star-item.star-clicked {
    animation: starPulse 0.4s ease;
}

/* Rating Display */
.rating-display {
    margin-left: 10px;
    font-weight: 600;
    color: #ffc107;
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.rating-display.show {
    opacity: 1;
}
.review-textarea {
    border-radius: 8px;
    min-height: 80px;
    font-size: 1.05rem;
    resize: vertical;
}
.review-submit-btn {
    background: #ffc107;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    transition: background 0.2s, color 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.review-submit-btn:hover {
    background: #125875;
    color: #fff;
}

@media (max-width: 992px) {
    .course-detail-section .col-lg-8,
    .course-detail-section .col-lg-4 {
        max-width: 100%;
        flex: 0 0 100%;
    }
    .what-learn-box {
        margin-top: 1.5rem;
    }
    .about-instructor-section,
    .student-feedback-section,
    .reviews-section {
        padding: 1.2rem 0.7rem;
    }
}
@media (max-width: 768px) {
    .course-banner {
        min-height: 220px;
    }
    .course-label {
        font-size: 1rem;
        padding: 0.5rem 1.2rem;
    }
    .what-learn-box {
        padding: 1.2rem 0.7rem;
    }
}