/* CSS Variables */
:root {
    --primary-color: #38a169;
    --primary-hover: #2f855a;
    --secondary-color: #38b2ac;
    --accent-color: #c43921;
    --accent-hover: #b02e19;
    --light-bg: #f7fafc;
    --dark-bg: #1a202c;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-light: #a0aec0;
    --text-white: #fff;
    --success-color: #48bb78;
    --warning-color: #ecc94b;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    --transition-normal: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

/* Course Grid Layout */
.cm-courses-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: var(--font-family);
}

.cm-courses-title {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
    color: var(--text-primary);
}

.cm-courses-title:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
}

.cm-courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.cm-course-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
    cursor: pointer;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid #edf2f7;
}

.cm-course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.cm-course-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none !important;
    color: inherit;
}

.cm-course-card-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-color);
    color: white;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    z-index: 2;
    box-shadow: var(--shadow-sm);
}

.cm-course-card-thumbnail {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 aspect ratio */
    overflow: hidden;
}

.cm-course-card-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.cm-course-card:hover .cm-course-card-thumbnail img {
    transform: scale(1.05);
}

.cm-course-card-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.cm-course-card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
    line-height: 1.4;
    display: flex;
    align-items: center;
}

.cm-course-card-title i {
    margin-right: 8px;
    color: var(--primary-color);
    font-size: 18px;
}

.cm-course-card-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.6;
    flex-grow: 1;
}

.cm-course-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px solid #edf2f7;
}

.cm-course-card-chapters {
    display: flex;
    align-items: center;
    color: var(--text-secondary);
    font-size: 13px;
}

.cm-course-card-chapters i {
    margin-right: 5px;
    color: var(--primary-color);
}

.cm-course-card-price {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.cm-course-card-original-price {
    font-size: 12px;
    text-decoration: line-through;
    color: var(--text-light);
}

.cm-course-card-sale-price {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent-color);
}

/* Course Modal Styles */
.cm-course-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 32, 44, 0.8);
    z-index: 9999;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cm-course-modal.active {
    display: block;
    opacity: 1;
}

.cm-course-modal-content {
    background: white;
    width: 90%;
    max-width: 1000px;
    margin: 50px auto;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    position: relative;
    transform: translateY(30px);
    transition: transform 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.cm-course-modal.active .cm-course-modal-content {
    transform: translateY(0);
}

.cm-course-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 24px;
    z-index: 10;
    transition: var(--transition-normal);
}

.cm-course-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.cm-course-header {
    position: relative;
    padding: 30px;
    color: white;
    background: linear-gradient(135deg, #1a4731 0%, #2f855a 100%);
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.cm-course-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.03) 0px, rgba(255, 255, 255, 0.03) 1px, transparent 1px, transparent 15px);
    z-index: 1;
}

.cm-course-header::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 -1px 0 rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.cm-course-header h2,
.cm-course-header-meta {
    position: relative;
    z-index: 2;
}

.cm-course-header h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    letter-spacing: 0.5px;
}

.cm-course-header-meta {
    display: flex;
    align-items: center;
    margin-top: 10px;
    opacity: 0.9;
}

.cm-course-header-meta span {
    margin-right: 15px;
    display: flex;
    align-items: center;
    font-size: 14px;
}

.cm-course-header-meta i {
    margin-right: 5px;
}

.cm-course-video-wrapper {
    margin: 0 auto 20px;
    position: relative;
    z-index: 5;
    border: 20px solid white;
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    background: #000;
}

.cm-course-video-container {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
}

.cm-course-video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 5px;
    transition: transform 0.3s ease;
}

.cm-course-video-wrapper:hover .cm-course-video-container iframe {
    transform: scale(1.05);
}

/* Price and Register button row */
.cm-price-register-row {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: -10px auto 20px;
    padding: 0 30px;
    gap: 20px;
}

.cm-course-price-wrapper {
    display: flex;
    align-items: baseline;
}

.cm-course-original-price {
    text-decoration: line-through;
    color: var(--text-light);
    font-size: 18px;
    margin-right: 10px;
}

.cm-course-sale-price {
    color: var(--accent-color);
    font-size: 28px;
    font-weight: 700;
}

.cm-course-register-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 35px;
    background: var(--accent-color);
    color: white !important;
    border-radius: 99px;
    font-weight: 700;
    text-transform: none;
    letter-spacing: normal;
    transition: var(--transition-normal);
    box-shadow: 0 4px 6px rgba(196, 57, 33, 0.25);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    width: fit-content;
}

.cm-course-register-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px rgba(196, 57, 33, 0.2);
}

.cm-course-register-btn:before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
    transform: skewX(-25deg);
    transition: all 0.75s ease;
}

.cm-course-register-btn:hover:before {
    left: 100%;
}

.cm-course-body {
    padding: 0 30px 30px;
}

/* Course Info */
.cm-course-info-wrapper {
    margin-bottom: 20px;
    padding: 0 15px;
}

.cm-course-info-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 18px;
}

.cm-course-description {
    line-height: 1.7;
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 20px;
}

/* Collapsible Features */
.cm-course-features-wrapper {
    margin-bottom: 20px;
}

.cm-course-features-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: #f0fff4;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    margin-bottom: 5px;
    font-weight: 600;
    color: var(--primary-color);
    transition: var(--transition-normal);
}

.cm-course-features-header:hover {
    background: #c6f6d5;
}

.cm-course-features-header i {
    transition: var(--transition-normal);
}

.cm-course-features-header.active i {
    transform: rotate(180deg);
}

.cm-course-features {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-in-out;
    background: transparent;
    border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
}

.cm-course-features.active {
    max-height: 1000px;
}

.cm-course-features-list {
    list-style: none;
    padding: 10px 15px;
    margin: 0;
}

.cm-course-features-list li {
    padding: 4px 0;
    display: flex;
    align-items: center;
    color: var(--text-secondary);
    border-bottom: 1px solid #e2e8f0;
}

.cm-course-features-list li:last-child {
    border-bottom: none;
}

.cm-course-features-list li:before {
    content: "\f147";
    font-family: dashicons;
    color: var(--success-color);
    margin-right: 10px;
    font-size: 18px;
}

/* Update Links Layout */
.cm-update-links-list {
    padding: 8px 15px;
    max-height: 390px;
    overflow-y: auto;
}

.cm-update-link-row {
    display: flex;
    align-items: center;
    padding: 5px 0;
    border-bottom: 1px solid #e2e8f0;
    font-size: 14px;
    gap: 10px;
}

.cm-update-link-row:last-child {
    border-bottom: none;
}

.cm-update-link-date {
    width: 90px;
    flex-shrink: 0;
    color: var(--text-secondary);
    font-size: 12px;
}

.cm-update-link-name {
    flex: 1;
    color: var(--text-primary, #2d3748);
    font-size: 12px;
    text-decoration: none;
}

a.cm-update-link-name:hover {
    color: var(--primary-color, #38a169);
    text-decoration: underline;
}

.cm-update-link-btn {
    flex-shrink: 0;
    padding: 1px 8px;
    background: var(--primary-color, #38a169);
    color: #fff;
    border-radius: 3px;
    text-decoration: none;
    font-size: 11px;
    font-weight: 600;
    transition: var(--transition-normal, 0.2s);
    line-height: 1.6;
}

.cm-update-link-btn:hover {
    opacity: 0.85;
    color: #fff;
}

.cm-update-link-disabled {
    background: #cbd5e0;
    cursor: default;
}

.cm-document-wrapper {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.cm-document-label {
    margin-right: 10px;
    font-weight: 500;
    color: var(--text-primary);
}

.cm-download-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background-color: #4a5568;
    color: white !important;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    line-height: 1;
}

.cm-download-btn:hover {
    background-color: #2d3748;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cm-download-btn i {
    margin-right: 8px;
    font-size: 18px;
}

/* Chapters and Lessons */
.cm-course-chapters {
    margin-top: 25px;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid #e2e8f0;
}

.cm-chapter {
    margin-bottom: 1px;
    background: white;
}

.cm-chapter:last-child {
    margin-bottom: 0;
}

.cm-chapter-title {
    padding: 12px 15px;
    background: #f8fafc;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition-normal);
    border-bottom: 1px solid #e2e8f0;
}

.cm-chapter-title:hover {
    background: #edf2f7;
    color: var(--primary-color);
}

.cm-chapter-title.active {
    background: var(--primary-color);
    color: white;
    border-bottom: none;
}

.cm-chapter-title span {
    transition: var(--transition-normal);
}

.cm-chapter-title:after {
    content: "\f347";
    font-family: dashicons;
    font-size: 20px;
    transition: var(--transition-normal);
}

.cm-chapter-title.active:after {
    transform: rotate(180deg);
    color: white;
}

.cm-chapter-lessons {
    display: none;
    background: white;
    padding: 3px 0;
}

.cm-chapter-lessons.active {
    display: block;
}

.cm-lesson-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 7px 12px;
    margin: 2px 15px;
    cursor: pointer;
    transition: var(--transition-normal);
    border-radius: var(--border-radius-md);
    background: white;
    border: 1px solid transparent;
    position: relative;
}

.cm-lesson-item:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: transparent;
    transition: var(--transition-normal);
    border-radius: var(--border-radius-md) 0 0 var(--border-radius-md);
}

.cm-lesson-item:hover {
    background: #f7fafc;
    border-color: #e2e8f0;
}

.cm-lesson-item:hover:before {
    background: var(--primary-color);
}

.cm-lesson-item.viewed {
    background: #f0fff4;
    border-color: #c6f6d5;
}

.cm-lesson-item.viewed:before {
    background: var(--success-color);
}

.cm-lesson-item.viewed .cm-lesson-title i {
    color: var(--success-color);
}

.cm-lesson-title {
    display: flex;
    align-items: center;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition-normal);
    flex: 1;
    font-size: 14px;
}

.cm-lesson-item:hover .cm-lesson-title {
    color: var(--primary-color);
}

.cm-lesson-item.viewed:hover .cm-lesson-title {
    color: var(--success-color);
}

.cm-lesson-title i {
    margin-right: 8px;
    font-size: 14px;
    color: var(--primary-color);
    transition: var(--transition-normal);
}

.cm-lesson-duration {
    display: inline-block;
    color: var(--text-light);
    font-size: 12px;
    background: #f7fafc;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 500;
    transition: var(--transition-normal);
}

.cm-lesson-item:hover .cm-lesson-duration {
    background: #edf2f7;
    color: var(--primary-color);
}

.cm-lesson-item.viewed .cm-lesson-duration {
    background: #e6fffa;
    color: var(--success-color);
}

/* Video modal */
.cm-video-modal {
    display: none;
    position: fixed;
    z-index: 99999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(26, 32, 44, 0.9);
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(5px);
}

.cm-video-modal.show {
    opacity: 1;
    display: flex !important;
    align-items: center;
    justify-content: center;
}

.cm-modal-content {
    position: relative;
    margin: 0;
    padding: 0;
    width: 90%;
    max-width: 1100px;
    transition: transform 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    transform: scale(0.95);
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.cm-video-modal.show .cm-modal-content {
    transform: scale(1);
}

.cm-modal-header {
    background: linear-gradient(135deg, #1a4731 0%, #2f855a 100%);
    color: white;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.cm-modal-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.03) 0px, rgba(255, 255, 255, 0.03) 1px, transparent 1px, transparent 15px);
    z-index: 1;
}

.cm-modal-header::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 -1px 0 rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.cm-modal-title {
    color: white;
    font-weight: 600;
    font-size: 16px;
    margin: 0;
    position: relative;
    z-index: 2;
}

.cm-close-modal {
    color: white;
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition-normal);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 2;
}

.cm-modal-video-container {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 */
    height: 0;
    overflow: hidden;
    background: #000;
}

.cm-modal-video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.cm-loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, .3);
    border-radius: 50%;
    border-top-color: white;
    animation: cm-spin 1s ease-in-out infinite;
    margin-right: 10px;
}

@keyframes cm-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Empty state */
.cm-empty-state {
    text-align: center;
    padding: 40px 20px;
    background: #f7fafc;
    border-radius: var(--border-radius-lg);
    margin: 20px 0;
}

.cm-empty-state-icon {
    font-size: 48px;
    color: var(--text-light);
    margin-bottom: 20px;
}

.cm-empty-state-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.cm-empty-state-desc {
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* Single Course Page Styles */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 15px;
}

.cm-course-container {
    display: grid;
    grid-template-columns: 1fr 430px;
    gap: 30px;
    font-family: var(--font-family);
    margin: 30px auto;
    /* Thêm auto */
    max-width: 85%;
    /* Thêm dòng này */
}

.cm-course-right-sticky {
    position: sticky;
    top: 30px;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.cm-course-title-desktop {
    padding: 20px;
    background: linear-gradient(135deg, #1a4731 0%, #2f855a 100%);
    color: white;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.cm-course-title-desktop::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.03) 0px, rgba(255, 255, 255, 0.03) 1px, transparent 1px, transparent 15px);
    z-index: 1;
}

.cm-course-title-desktop::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 -1px 0 rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.cm-course-title-desktop h1,
.cm-course-title-desktop .cm-course-meta {
    position: relative;
    z-index: 2;
}

.cm-course-title-desktop h1 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
    color: white;
    line-height: 1.3;
}

.cm-course-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 14px;
}

.cm-course-meta span {
    display: flex;
    align-items: center;
}

.cm-course-meta i {
    margin-right: 5px;
}

.cm-course-title-mobile {
    display: none;
    margin-bottom: 20px;
}

.cm-course-title-mobile h1 {
    font-size: 24px;
    font-weight: 700;
    margin-top: 20px;
    color: var(--text-primary);
}

.cm-price-register-box {
    background: white;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.cm-course-chapters-title {
    font-weight: 600;
    color: var(--text-primary);
    margin: 20px 0 15px;
    font-size: 18px;
}

/* Other courses section */
.cm-other-courses-section {
    margin: 40px auto;
    /* Thay đổi từ "40px 0" thành "40px auto" */
    padding: 30px;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    box-sizing: border-box;
    max-width: 85%;
    /* Thêm dòng này */
}

.cm-other-courses-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: nowrap;
}

.cm-other-courses-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.cm-view-all-courses-link {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    white-space: nowrap;
}

.cm-view-all-courses-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.cm-view-all-courses-link:after {
    content: "\f345";
    font-family: dashicons;
    font-size: 16px;
    margin-left: 5px;
}

.cm-other-courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.cm-other-course-card {
    background: white;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border: 1px solid #edf2f7;
}

.cm-other-course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.cm-other-course-link {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.cm-other-course-thumb {
    position: relative;
    padding-bottom: 56.25%;
    overflow: hidden;
}

.cm-other-course-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.cm-other-course-card:hover .cm-other-course-thumb img {
    transform: scale(1.05);
}

.cm-other-course-info {
    padding: 15px;
}

.cm-other-course-title {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 10px;
    color: var(--text-primary);
    line-height: 1.4;
}

.cm-other-course-price {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 16px;
}

.cm-other-course-coming-soon {
    display: inline-block;
    background: var(--warning-color);
    color: var(--dark-bg);
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}

.cm-view-all-courses-mobile {
    display: none;
    margin-top: 20px;
    text-align: center;
}

.cm-view-all-courses-btn {
    display: inline-block;
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    text-align: center;
}

.cm-view-all-courses-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

/* Lesson view button */
.cm-lesson-view-btn {
    background-color: #a0aec0;
    color: white;
    border-radius: 4px;
    padding: 3px 10px;
    margin-right: 8px;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.25s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.cm-lesson-item:hover .cm-lesson-view-btn {
    background-color: #38a169;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(56, 161, 105, 0.25);
}

/* Chapter styling improvements */
.cm-chapter-title {
    padding: 12px 16px;
    background: #f8f9fa;
    font-size: 15px;
    font-weight: 600;
    color: #000000;
    border-left: 3px solid #718096;
    margin-bottom: 2px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    transition: all 0.25s ease;
    text-align: left;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    cursor: pointer;
}

.cm-chapter-title span {
    margin-right: auto;
}

.cm-chapter-title:hover {
    background: #edf2f7;
    color: #000000;
    border-left-color: #4a5568;
}

.cm-chapter-title.active {
    background: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.03) 0px, rgba(255, 255, 255, 0.03) 1px, transparent 1px, transparent 15px),
        linear-gradient(135deg, #1a4731 0%, #2f855a 100%);
    color: white;
    border-left: 3px solid #1a4731;
    box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.2);
}

.cm-chapter-title:before {
    content: "\f318";
    font-family: dashicons;
    margin-right: 10px;
    font-size: 18px;
    color: #000000;
    opacity: 0.7;
    vertical-align: middle;
    transition: all 0.25s ease;
}

/* Viewed Lesson Style */
.cm-lesson-item.viewed {
    background-color: #f9fffb;
}

.cm-lesson-item.viewed .cm-lesson-title {
    color: #2f855a;
}

.cm-lesson-item.viewed .cm-lesson-title i {
    color: #2f855a;
}

.cm-chapter-title.active:before {
    color: white;
    opacity: 1;
    transform: scale(1.1);
}

.cm-chapter {
    margin-bottom: 3px;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.cm-chapter-lessons {
    border-left: 3px solid #e2e8f0;
    margin-left: 18px;
    background: #ffffff;
    box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.03);
    padding-top: 2px;
    padding-bottom: 2px;
}

.cm-lesson-item {
    margin: 0;
    border-radius: 0;
    border-bottom: 1px solid #f0f0f0;
    padding: 6px 15px;
    line-height: 1.4;
}

.cm-lesson-item.no-video {
    cursor: default;
    opacity: 0.8;
}

.cm-lesson-item.no-video:hover {
    background-color: transparent;
    transform: none;
    box-shadow: none;
}

.cm-lesson-item:last-child {
    border-bottom: none;
}

.cm-lesson-title {
    font-size: 14px;
    line-height: 1.3;
    font-weight: normal;
    color: #4a5568;
}

.cm-lesson-title i {
    color: #4a5568;
    margin-right: 8px;
}

.cm-lesson-item:hover .cm-lesson-title {
    color: #38a169;
}

.cm-lesson-item:hover .cm-lesson-title i {
    color: #38a169;
}

.cm-lesson-duration {
    font-size: 11px;
    padding: 2px 6px;
    background: #f7fafc;
    border-radius: 3px;
    color: #718096;
}

/* Responsive adjustments */
@media (max-width: 991px) {
    .cm-price-register-row {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 15px;
    }

    .cm-course-price-wrapper {
        display: flex;
        align-items: baseline;
    }

    .cm-course-register-btn {
        min-width: 160px;
    }

    .cm-course-video-wrapper {
        width: 90%;
        margin-top: -40px;
        border-width: 15px;
    }

    .cm-course-header {
        padding: 25px;
    }

    .cm-course-header h2 {
        font-size: 24px;
    }

    .cm-course-body {
        padding: 0 20px 20px;
    }

    .cm-courses-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }

    .cm-course-container {
        display: flex;
        /* Quay lại flexbox trên mobile */
        flex-direction: column;
    }

    .cm-course-left-column,
    .cm-course-right-column {
        width: 100%;
        max-width: 100%;
    }

    .cm-course-right-sticky {
        position: relative;
        top: 0;
    }

    .cm-course-title-desktop {
        display: none;
    }

    .cm-course-title-mobile {
        display: block;
    }

    .cm-other-courses-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {

    .cm-modal-content,
    .cm-course-modal-content {
        width: 95%;
        margin: 5% auto;
    }

    .cm-course-header-meta {
        flex-wrap: wrap;
    }

    .cm-course-header-meta span {
        margin-bottom: 5px;
    }

    .cm-lesson-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .cm-lesson-duration {
        margin-top: 5px;
        margin-left: 26px;
    }

    .cm-courses-grid {
        grid-template-columns: 1fr;
    }

    .cm-document-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }

    .cm-document-label {
        margin-bottom: 10px;
    }

    .cm-other-courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cm-other-courses-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .cm-view-all-courses-link {
        display: none;
    }

    .cm-view-all-courses-mobile {
        display: block;
    }
}

@media (max-width: 480px) {
    .cm-course-video-wrapper {
        margin-top: -20px;
        margin-bottom: 20px;
        border-width: 10px;
        width: 100%;
    }

    .cm-price-register-row {
        padding: 0 15px;
        flex-direction: column;
        align-items: center;
    }

    .cm-course-register-btn {
        width: auto;
    }

    .cm-course-header h2 {
        font-size: 20px;
    }

    .cm-chapter-title {
        font-size: 14px;
        padding: 10px 12px;
    }

    .cm-lesson-item {
        padding: 6px 10px;
        margin: 2px 6px;
    }

    .cm-course-modal {
        position: fixed;
        height: 100%;
        overflow-y: scroll;
        -webkit-overflow-scrolling: touch;
    }

    .cm-course-modal-content {
        margin: 0;
        min-height: 100%;
        border-radius: 0;
        width: 100%;
    }

    .cm-course-body {
        padding: 0 15px 30px;
    }

    .cm-course-modal-close {
        top: 15px;
        right: 15px;
    }

    .cm-other-courses-section {
        padding: 20px 15px;
    }

    .cm-other-courses-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile width adjustments - để content chiếm 100% trên mobile */
@media (max-width: 991px) {
    .cm-course-container {
        max-width: 100% !important;
        margin: 20px 0 !important;
        padding: 0 15px;
    }

    .cm-other-courses-section {
        max-width: 100% !important;
        margin: 30px 0 !important;
        padding: 20px 15px;
        border-radius: 0;
    }

    /* Đảm bảo course modal cũng full width trên mobile */
    .cm-course-modal-content {
        width: 100%;
        margin: 0;
        border-radius: 0;
    }
}

@media (max-width: 767px) {
    .cm-course-container {
        max-width: 100% !important;
        margin: 15px 0 !important;
        padding: 0 10px;
    }

    .cm-other-courses-section {
        max-width: 100% !important;
        margin: 20px 0 !important;
        padding: 15px 10px;
        border-radius: 0;
    }
}

@media (max-width: 480px) {
    .cm-course-container {
        max-width: 100% !important;
        margin: 10px 0 !important;
        padding: 0 5px;
    }

    .cm-other-courses-section {
        max-width: 100% !important;
        margin: 15px 0 !important;
        padding: 15px 5px;
        border-radius: 0;
    }
}

/* ==========================================================================
   Course Status: Closed Styles
   ========================================================================== */
.cm-course-closed-single-box {
    background-color: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    padding: 12px 16px;
    text-align: center;
    box-sizing: border-box;
    margin-top: 5px;
}

.cm-closed-btn-main {
    font-size: 15px;
    font-weight: 700;
    color: #475569;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 4px;
}

.cm-closed-btn-main .dashicons {
    font-size: 18px;
    width: 18px;
    height: 18px;
    color: #dc2626;
}

.cm-closed-btn-sub {
    font-size: 12px;
    color: #64748b;
    line-height: 1.4;
}

.cm-course-card-badge-closed {
    background-color: #ef4444 !important;
    color: #ffffff !important;
}

.cm-card-closed .cm-course-card-thumbnail img {
    filter: grayscale(20%);
}