/* =================================================================== 
 * Courses Section Styles
 * =================================================================== */

/* Courses Section */
.s-courses {
    padding-bottom: 4.8rem;
}

.section-header {
    margin-bottom: 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

/* Courses Grid & Layout */
.courses-grid {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.year-section {
    background: #fafafa;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.year-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e0e0e0;
}

.semester-section {
    margin-bottom: 2.5rem;
}

.semester-title {
    font-size: 2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.courses-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* Course Card */
.course-card {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #ff6b6b;
}

.course-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
    border-color: #333;
}

.course-card--compulsory {
    border-left: 4px solid #ccbebc;
}

.course-card__link {
    display: block;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.course-card__header {
    margin-bottom: 1rem;
}

.course-card__title {
    font-size: 2rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.course-card__code {
    font-size: 0.85rem;
    color: #666;
    font-family: 'Courier New', monospace;
    background: #f5f5f5;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    display: inline-block;
}

.course-card__desc {
    font-size: 1.5rem;
    color: #555;
    line-height: 1.5;
    flex-grow: 1;
    margin-bottom: 1rem;
}

.course-card__footer {
    padding-top: 1rem;
    border-top: 1px solid #f0f0f0;
}

.course-card__click {
    font-size: 0.9rem;
    font-weight: 600;
    color: #1a1a1a;
    display: inline-block;
    transition: all 0.2s ease;
}

.course-card:hover .course-card__click {
    color: #666;
    transform: translateX(4px);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-left: 0.5rem;
    
}

.badge--compulsory {
    background: #ffe0e0;
    color: #d32f2f;
}

/* Course Detail Page */
.s-course-detail {
    padding: 4rem 0 6rem;
}

.course-detail__container {
    background: white;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.course-detail__back {
    display: inline-block;
    margin-bottom: 1.5rem;
    color: #666;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.course-detail__back:hover {
    color: #1a1a1a;
}

.course-detail__header {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #f0f0f0;
}

.course-detail__title-section {
    margin-bottom: 1rem;
}

.course-detail__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.course-detail__code {
    font-size: 1rem;
    color: #666;
    font-family: 'Courier New', monospace;
    margin: 0;
}

.course-detail__meta {
    font-size: 1rem;
    color: #888;
    margin-top: 1rem;
}

.course-detail__content {
    line-height: 1.8;
}

.course-detail__section {
    margin-bottom: 3rem;
}

.course-detail__section h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1.5rem;
}

.course-section {
    margin-bottom: 2.5rem;
}

.course-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1.2rem;
}

.course-section p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* Topics List */
.topics-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.topics-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    color: #555;
    position: relative;
}

.topics-list li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: #888;
    font-weight: bold;
}

/* Coursework List */
.coursework-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 1rem;
}

.coursework-list .coursework-list {
    margin-top: 0.75rem;
    margin-left: 1.25rem;
    padding-left: 1rem;
    border-left: 2px solid #eeeeee;
}

.coursework-list__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f9f9f9;
    border-left: 3px solid #ccbebc;
    border-radius: 4px;
}

.coursework-list__item strong {
    color: #1a1a1a;
}

.coursework-list__item span {
    color: #666;
    background: white;
    border: 1px solid #eeeeee;
    border-radius: 4px;
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
    white-space: nowrap;
}

/* Assignments List */
.assignments-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 1rem;
}

.assignment-item {
    background: #f9f9f9;
    padding: 1rem;
    border-left: 3px solid #333;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.assignment-item strong {
    color: #1a1a1a;
    flex: 1;
    min-width: 150px;
}

.format {
    font-size: 0.85rem;
    color: #666;
    background: white;
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    font-weight: 500;
}

.status {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    min-width: fit-content;
}

.status-completed {
    background: #e8f5e9;
    color: #2e7d32;
}

.status-in-progress {
    background: #fff3e0;
    color: #e65100;
}

.status-pending {
    background: #f3e5f5;
    color: #6a1b9a;
}

/* Assignment Reflections */
.assignment-reflections {
    display: grid;
    gap: 1rem;
}

.assignment-reflection {
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-left: 4px solid #ccbebc;
    border-radius: 6px;
    padding: 1.25rem;
}

.assignment-reflection__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.assignment-reflection h5 {
    margin: 0;
    color: #1a1a1a;
    font-size: 1.05rem;
    line-height: 1.35;
}

.assignment-reflection p {
    margin-bottom: 0.75rem;
}

.assignment-reflection p:last-child {
    margin-bottom: 0;
}

/* Skills List */
.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    display: inline-block;
    background: #f0f0f0;
    color: #1a1a1a;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid #e0e0e0;
    transition: all 0.2s ease;
}

.skill-tag:hover {
    background: #333;
    color: white;
    border-color: #333;
}

/* Reflection Box */
.reflection-box {
    background: #f5f5f5;
    padding: 1.5rem;
    border-left: 4px solid #333;
    border-radius: 4px;
    line-height: 1.8;
    color: #555;
}

.reflection-box p {
    margin: 0;
}

/* Error Message */
.error-message {
    background: #fff3cd;
    border: 1px solid #ffc107;
    padding: 2rem;
    border-radius: 6px;
    text-align: center;
}

.error-message p {
    color: #856404;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.error-message a {
    display: inline-block;
    background: #ffc107;
    color: #000;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.error-message a:hover {
    background: #ffb300;
}

/* Responsive Design */
@media (max-width: 768px) {
    .course-detail__container {
        padding: 1.5rem;
    }

    .course-detail__title {
        font-size: 1.8rem;
    }

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

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

    .coursework-list__item,
    .assignment-reflection__header {
        flex-direction: column;
        align-items: flex-start;
    }

    .coursework-list__item span {
        white-space: normal;
    }

    .skills-list {
        gap: 0.5rem;
    }

    .skill-tag {
        font-size: 0.85rem;
        padding: 0.4rem 0.75rem;
    }

    .year-section {
        padding: 1rem;
    }

    .semester-title {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .course-detail__title {
        font-size: 1.4rem;
    }

    .course-card__title {
        font-size: 1rem;
    }

    .year-title {
        font-size: 1.2rem;
    }

    .course-section h4 {
        font-size: 1rem;
    }
}

/* ===================================================================
 * ## Two-Column Responsive Layout
 * =================================================================== */
.course-detail__layout {
    display: flex;
    flex-direction: row;
    gap: 4rem;
    margin-top: 2rem;
}

.course-detail__main {
    flex: 1;
    min-width: 0; /* Prevents overflow issues */
}

.course-detail__sidebar {
    width: 32rem;
    flex-shrink: 0;
}

.course-sidebar-card {
    background: #fbfcfb;
    border: 1px solid #e0e2e0;
    border-radius: 8px;
    padding: 2.5rem;
    position: sticky;
    top: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.sidebar-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid #eceeec;
}

.sidebar-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.sidebar-section h5 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-3);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Sidebar Meta Information */
.sidebar-meta-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sidebar-meta-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
}

.meta-label {
    color: var(--color-gray-15);
    font-weight: 500;
}

.meta-value {
    color: var(--color-3);
    font-weight: 600;
}

.meta-value.font-mono {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background: #eceeec;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

/* ===================================================================
 * ## Coursework Attachments UI
 * =================================================================== */
.coursework-list__item-container {
    background: #fdfdfd;
    border: 1px solid #eceeec;
    border-radius: 6px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.coursework-list__item-container .coursework-list__item {
    border-left: none;
    padding: 0;
    background: none;
}

/* Attachment Buttons Row */
.coursework-item__attachments {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px dashed #eceeec;
}

.attachment-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #ffffff;
    border: 1px solid #d4d6d4;
    color: var(--color-gray-17);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

.attachment-btn:hover {
    background: var(--color-gray-5);
    color: var(--color-1);
    border-color: var(--color-1-light);
}

.attachment-btn--active, 
.attachment-btn--active:hover {
    background: var(--color-1);
    color: var(--color-white);
    border-color: var(--color-1);
}

.att-icon {
    flex-shrink: 0;
}

/* ===================================================================
 * ## Inline Preview Panels
 * =================================================================== */
.attachment-previews {
    margin-top: 1rem;
}

.attachment-preview-panel {
    background: #ffffff;
    border: 1px solid #d4d6d4;
    border-radius: 6px;
    overflow: hidden;
    margin-top: 0.75rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    animation: slideDown 0.25s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.attachment-preview-panel__header {
    background: var(--color-gray-7);
    border-bottom: 1px solid #d4d6d4;
    padding: 0.75rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.attachment-preview-panel__title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-3);
}

.attachment-preview-panel__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.preview-action-btn, 
.preview-close-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: #ffffff;
    border: 1px solid #bdbebd;
    color: var(--color-gray-17);
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    line-height: 1;
}

.preview-action-btn:hover {
    background: var(--color-gray-5);
    color: var(--color-3);
    border-color: var(--color-gray-15);
}

.preview-close-btn:hover {
    background: #ffe5e5;
    color: #c00;
    border-color: #ffb3b3;
}

.preview-close-btn {
    height: auto;
}

.attachment-preview-panel__body {
    padding: 1.5rem;
    background: var(--color-gray-2);
    min-height: 200px;
    position: relative;
}

.preview-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-gray-15);
}

/* Embedded Media Styles */
.embedded-pdf {
    width: 100%;
    height: 550px;
    border: 1px solid #d4d6d4;
    border-radius: 4px;
    background: #ffffff;
    display: block;
    position: relative;
    z-index: 2;
}

.embedded-image {
    max-width: 100%;
    max-height: 600px;
    height: auto;
    display: block;
    margin: 0 auto;
    border: 1px solid #d4d6d4;
    border-radius: 4px;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    position: relative;
    z-index: 2;
}

/* Utility Helper */
.display-none {
    display: none !important;
}

/* ===================================================================
 * ## Sidebar Overrides & Optimizations
 * =================================================================== */
.course-detail__sidebar .skills-list {
    gap: 0.6rem;
}

.course-detail__sidebar .skill-tag {
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
}

.course-detail__sidebar .reflection-box {
    padding: 1.25rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.course-detail__sidebar .topics-list li {
    font-size: 0.9rem;
    padding: 0.5rem 0;
    padding-left: 1.2rem;
}

/* ===================================================================
 * ## Responsive Design for Two Columns
 * =================================================================== */
@media (max-width: 1024px) {
    .course-detail__layout {
        flex-direction: column;
        gap: 3rem;
    }

    .course-detail__sidebar {
        width: 100%;
    }

    .course-sidebar-card {
        position: static;
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .coursework-list__item-container {
        padding: 1rem;
    }

    .attachment-preview-panel__header {
        flex-direction: column;
        align-items: flex-start;
    }

    .attachment-preview-panel__actions {
        width: 100%;
        justify-content: flex-start;
    }

    .embedded-pdf {
        height: 400px;
    }
}

/* ===================================================================
 * ## Course Detail Page (course-detail.html)
 * =================================================================== */
.course-detail-page {
    --cd-background: #F2EDE4;
    --cd-foreground: #1C1917;
    --cd-card: #FFFFFF;
    --cd-primary: #1C1917;
    --cd-primary-foreground: #F2EDE4;
    --cd-secondary: #E5DDD0;
    --cd-muted: #E8E2D8;
    --cd-muted-foreground: #6B6560;
    --cd-accent: #C4622D;
    --cd-accent-foreground: #FFFFFF;
    --cd-border: rgba(28, 25, 23, 0.12);
    --cd-radius: 0.375rem;
    font-family: 'DM Sans', sans-serif;
    background-color: var(--cd-background);
    color: var(--cd-foreground);
    font-size: 16px;
    line-height: 1.6;
    display: flex;
    min-height: 100vh;
    margin: 0;
}

.course-detail-page h1,
.course-detail-page h2,
.course-detail-page h3,
.course-detail-page h4,
.course-detail-page h5 {
    font-family: 'Fraunces', serif;
    font-weight: 600;
}

.course-detail-page a {
    text-decoration: none;
    color: inherit;
}

.course-detail-page #course-detail-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

.course-detail-page .sidebar {
    width: 280px;
    background-color: var(--cd-background);
    border-right: 1px solid var(--cd-border);
    padding: 2rem 1.5rem;
    height: 100vh;
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.course-detail-page .sidebar-header {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--cd-border);
}

.course-detail-page .info-block {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.course-detail-page .icon-box {
    background: var(--cd-accent);
    color: white;
    border-radius: 8px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.course-detail-page .icon-box svg {
    width: 18px;
    height: 18px;
    stroke: white;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.course-detail-page .course-code {
    color: var(--cd-accent);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

.course-detail-page .sidebar-header h2 {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
}

.course-detail-page .sidebar-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.course-detail-page .tag-green {
    background: #DCE7DE;
    color: #417555;
    padding: 0.15rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.course-detail-page .tag-blue {
    background: #DDE4F1;
    color: #4D7BAA;
    padding: 0.15rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.course-detail-page .tag-orange {
    background: var(--cd-accent);
    color: white;
    border-radius: 4px;
    padding: 0.15rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.04em;
}

.course-detail-page .sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--cd-border);
    flex: 1;
}

.course-detail-page .sidebar-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    border-radius: var(--cd-radius);
    color: var(--cd-muted-foreground);
    font-weight: 500;
    font-size: 0.9rem;
    transition: background 0.2s, color 0.2s;
}

.course-detail-page .sidebar-nav a.active {
    background: var(--cd-primary);
    color: var(--cd-primary-foreground);
}

.course-detail-page .sidebar-nav a .nav-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.course-detail-page .sidebar-nav a .nav-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.course-detail-page .sidebar-nav a:not(.active):hover {
    background: var(--cd-muted);
    color: var(--cd-foreground);
}

.course-detail-page .sidebar-nav a .nav-arrow {
    font-size: 1rem;
    color: var(--cd-muted-foreground);
}

.course-detail-page .sidebar-nav a.active .nav-arrow {
    color: #8A8480;
}

.course-detail-page .sidebar-footer {
    padding-top: 1rem;
    font-size: 0.8rem;
    color: var(--cd-muted-foreground);
    line-height: 1.4;
}

.course-detail-page .sidebar-back {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--cd-muted-foreground);
    transition: color 0.2s;
}

.course-detail-page .sidebar-back:hover {
    color: var(--cd-foreground);
}

.course-detail-page .main-content {
    flex: 1;
    padding: 2.5rem 3rem;
    max-width: 1400px;
    margin: 0 auto;
    min-width: 0;
}

.course-detail-page .hero-banner {
    background: #262321;
    border-radius: var(--cd-radius);
    padding: 2.5rem 2.5rem 3.5rem;
    margin-bottom: 2.5rem;
    position: relative;
}

.course-detail-page .hero-tags {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.course-detail-page .hero-title {
    font-family: 'Fraunces', serif;
    font-size: 3.25rem;
    font-weight: 700;
    line-height: 1.1;
    margin: 0 0 0.75rem 0;
    color: white;
}

.course-detail-page .hero-subtitle {
    font-size: 0.85rem;
    color: #ABA4A0;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin: 0;
}

.course-detail-page .two-col {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
    margin-bottom: 3rem;
}

.course-detail-page .overview-divider,
.course-detail-page .section-divider {
    display: flex;
    align-items: center;
    color: var(--cd-accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.course-detail-page .section-divider {
    margin: 3rem 0 1.5rem;
}

.course-detail-page .overview-divider::after,
.course-detail-page .section-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--cd-border);
    margin-left: 1rem;
}

.course-detail-page .overview-text p {
    font-size: 1rem;
    color: var(--cd-foreground);
    opacity: 0.85;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.course-detail-page .detail-card {
    background: var(--cd-card);
    border-radius: var(--cd-radius);
    border: 1px solid var(--cd-border);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.course-detail-page .detail-card h3 {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--cd-muted-foreground);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.course-detail-page .detail-list {
    display: flex;
    flex-direction: column;
}

.course-detail-page .detail-list .row {
    display: flex;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--cd-border);
    font-size: 0.85rem;
}

.course-detail-page .detail-list .row:last-child {
    border-bottom: none;
}

.course-detail-page .detail-list .row .label {
    color: var(--cd-muted-foreground);
    font-weight: 500;
}

.course-detail-page .detail-list .row .value {
    font-weight: 600;
    text-align: right;
}

.course-detail-page .grade-card {
    background: #1C1917;
    border-radius: var(--cd-radius);
    padding: 1.5rem 1.5rem 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.course-detail-page .grade-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.course-detail-page .grade-letter {
    font-family: 'Fraunces', serif;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--cd-accent);
    line-height: 1;
}

.course-detail-page .grade-info {
    display: flex;
    flex-direction: column;
}

.course-detail-page .grade-info .gpa {
    color: white;
    font-size: 1rem;
    font-weight: 600;
}

.course-detail-page .grade-info .sub {
    color: var(--cd-muted-foreground);
    font-size: 0.8rem;
    font-weight: 500;
}

.course-detail-page .grade-label {
    font-size: 0.75rem;
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.course-detail-page .section-title {
    font-family: 'Fraunces', serif;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--cd-foreground);
    margin-bottom: 1.5rem;
}

/* ── Topics List (Compact View) ── */
.course-detail-page .topic-grid {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 2.5rem;
}

.course-detail-page .topic-card {
    display: flex;
    align-items: flex-start;
    gap: 0.25rem;
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    position: static;
}

/* Hiding the number (01, 02) and the icon box to save space */
.course-detail-page .topic-index,
.course-detail-page .topic-icon {
    display: none;
}

.course-detail-page .topic-card h4 {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--cd-foreground);
    margin: 0;
    flex-shrink: 0;
}

/* Add a colon after the topic title */
.course-detail-page .topic-card h4::after {
    content: "";
    margin-right: 0.3rem;
}

.course-detail-page .topic-card p {
    font-size: 0.9rem;
    color: var(--cd-muted-foreground);
    margin: 0;
}

.course-detail-page .topic-list-nested {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.course-detail-page .topic-list-nested li {
    font-size: 0.8rem;
    color: var(--cd-muted-foreground);
    padding-left: 1rem;
    position: relative;
}

.course-detail-page .topic-list-nested li::before {
    content: "–";
    position: absolute;
    left: 0;
    color: var(--cd-accent);
}

.course-detail-page .syllabus-list {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.course-detail-page .syllabus-list > li {
    background: var(--cd-card);
    border: 1px solid var(--cd-border);
    border-radius: var(--cd-radius);
    padding: 1rem 1.25rem;
}

.course-detail-page .syllabus-list > li > strong {
    display: block;
    margin-bottom: 0.35rem;
}

.course-detail-page .assignment-group {
    margin-bottom: 2.5rem;
}

.course-detail-page .group-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--cd-border);
}

.course-detail-page .group-tag {
    padding: 0.15rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--cd-foreground);
}

.course-detail-page .group-tag.tis { background: #F3ECE7; }
.course-detail-page .group-tag.lab { background: #E9F0F9; }
.course-detail-page .group-tag.project { background: #E5F3EE; }
.course-detail-page .group-tag.assessment { background: #EDE8F5; }

.course-detail-page .group-title {
    font-family: 'Fraunces', serif;
    font-size: 1.25rem;
    font-weight: 600;
    flex: 1;
}

.course-detail-page .group-count {
    font-size: 0.75rem;
    color: var(--cd-muted-foreground);
}

.course-detail-page .assessment-card {
    background: var(--cd-card);
    border-radius: var(--cd-radius);
    border: 1px solid var(--cd-border);
    margin-bottom: 0.75rem;
    padding: 1rem 1.5rem;
}

.course-detail-page .assessment-card ul {
    list-style: none;
    padding: 0.5rem 0 0 1rem;
    margin: 0;
}

.course-detail-page .assessment-card ul li {
    font-size: 0.9rem;
    color: var(--cd-muted-foreground);
    padding: 0.25rem 0;
}

.course-detail-page .assignment-card {
    background: var(--cd-card);
    border-radius: var(--cd-radius);
    border: 1px solid var(--cd-border);
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.course-detail-page .assignment-header {
    padding: 1rem 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.2s;
}

.course-detail-page .assignment-header:hover {
    background: #FAF8F5;
}

.course-detail-page .assignment-left {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex: 1;
}

.course-detail-page .ass-info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    flex: 1;
}

.course-detail-page .ass-title-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.course-detail-page .ass-title {
    font-weight: 600;
    font-size: 1rem;
}

.course-detail-page .ass-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.1rem 0.6rem;
    border-radius: 4px;
    border: 1px solid #D1C9BD;
    color: #6B5F55;
    background: #F2EEE9;
}

.course-detail-page .ass-badge.poster {
    border-color: #C2A5D8;
    color: #6E4B85;
    background: #F6EFFC;
}

.course-detail-page .ass-badge.video {
    border-color: #98B9E5;
    color: #395C88;
    background: #EBF2FB;
}

.course-detail-page .ass-badge.report {
    border-color: #8CBEAA;
    color: #3B6855;
    background: #EAF5F0;
}

.course-detail-page .ass-badge.presentation {
    border-color: #DCB69F;
    color: #87583C;
    background: #F4EAE4;
}

.course-detail-page .ass-badge.prototype {
    border-color: #E8A8A8;
    color: #8E3D3D;
    background: #F9E6E6;
}

.course-detail-page .ass-description {
    font-size: 0.85rem;
    color: var(--cd-muted-foreground);
}

.course-detail-page .ass-chevron {
    color: var(--cd-foreground);
    font-size: 1.25rem;
    transition: transform 0.3s ease;
}

.course-detail-page .ass-chevron.open {
    transform: rotate(180deg);
}

.course-detail-page .assignment-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.course-detail-page .assignment-body.open {
    max-height: 2000px;
}

.course-detail-page .ass-inner {
    padding: 1.5rem;
    border-top: 1px solid var(--cd-border);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.course-detail-page .ass-section-title {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--cd-muted-foreground);
    margin-bottom: 0.5rem;
}

.course-detail-page .ass-text-block {
    font-size: 0.95rem;
    color: var(--cd-foreground);
    opacity: 0.9;
    line-height: 1.6;
}

.course-detail-page .doc-viewer-block {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.course-detail-page .doc-viewer-block + .doc-viewer-block {
    margin-top: 0.5rem;
}

.course-detail-page .doc-viewer {
    border-radius: var(--cd-radius);
    overflow: hidden;
    border: 1px solid var(--cd-border);
}

.course-detail-page .doc-header {
    background: #202020;
    padding: 0.5rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}

.course-detail-page .doc-controls {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.course-detail-page .dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    display: block;
}

.course-detail-page .dot.red { background: #FF5F56; }
.course-detail-page .dot.yellow { background: #FFBD2E; }
.course-detail-page .dot.green { background: #27C93F; }

.course-detail-page .doc-filename {
    color: #8A8480;
    font-size: 0.75rem;
    flex: 1;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.course-detail-page .doc-open-btn {
    background: var(--cd-accent);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 0.2rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    cursor: pointer;
    text-decoration: none;
    flex-shrink: 0;
}

.course-detail-page .doc-open-btn svg {
    width: 12px;
    height: 12px;
    stroke: white;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.course-detail-page .doc-open-btn:hover {
    opacity: 0.9;
}

.course-detail-page .doc-body {
    background: #E6E3DD;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    background-image: radial-gradient(circle at 50% 50%, #dcd8d0 1px, transparent 1px);
    background-size: 20px 20px;
}

.course-detail-page .doc-embed-pdf {
    width: 100%;
    height: 520px;
    border: 1px solid var(--cd-border);
    border-radius: 4px;
    background: white;
    display: block;
}

.course-detail-page .doc-embed-image {
    max-width: 100%;
    max-height: 560px;
    height: auto;
    display: block;
    border: 1px solid var(--cd-border);
    border-radius: 4px;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.course-detail-page .doc-preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.course-detail-page .doc-preview-icon {
    width: 64px;
    height: 64px;
    background: #D3684F;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 0.75rem;
}

.course-detail-page .doc-preview-icon svg {
    width: 32px;
    height: 32px;
    stroke-width: 1.5;
    stroke: white;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.course-detail-page .doc-preview-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #4A4540;
    margin-bottom: 0.25rem;
    text-align: center;
}

.course-detail-page .doc-preview-sub {
    font-size: 0.85rem;
    color: #8A8480;
    text-align: center;
}

.course-detail-page .course-detail-page .reflection-box,
.course-detail-page .cd-reflection-box {
    background: #FDF6F2;
    border-radius: var(--cd-radius);
    padding: 1.5rem;
    border: 1px solid rgba(196, 98, 45, 0.1);
}

.course-detail-page .cd-reflection-box .reflection-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.course-detail-page .cd-reflection-box .reflection-header h5 {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--cd-accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin: 0;
}

.course-detail-page .cd-reflection-box p {
    font-size: 0.95rem;
    color: var(--cd-foreground);
    opacity: 0.9;
    line-height: 1.6;
    margin: 0;
}

.course-detail-page .reflection-improvements {
    margin-top: 4rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.course-detail-page .overall-reflection-block {
    background: var(--cd-card);
    padding: 2rem;
    border-radius: var(--cd-radius);
    border: 1px solid var(--cd-border);
}

.course-detail-page .overall-reflection-block h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.course-detail-page .overall-reflection-block blockquote {
    font-style: italic;
    color: var(--cd-foreground);
    opacity: 0.9;
    border-left: 4px solid var(--cd-accent);
    padding-left: 1.5rem;
    margin: 0;
}

.course-detail-page .overall-reflection-block footer {
    margin-top: 0.75rem;
    font-style: normal;
    font-weight: 600;
    color: var(--cd-muted-foreground);
}

.course-detail-page .improvement-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.course-detail-page .improvement-card {
    background: var(--cd-card);
    padding: 1.5rem;
    border-radius: var(--cd-radius);
    border: 1px solid var(--cd-border);
}

.course-detail-page .improvement-card h3 {
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.course-detail-page .improvement-card ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.course-detail-page .improvement-card ul li {
    display: flex;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--cd-muted-foreground);
    align-items: flex-start;
}

.course-detail-page .improvement-card ul li::before {
    content: "•";
    color: var(--cd-accent);
    font-weight: 700;
}

.course-detail-page .course-external-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.6rem 1.2rem;
    background: var(--cd-accent);
    color: white;
    border-radius: var(--cd-radius);
    font-weight: 600;
    font-size: 0.9rem;
    transition: opacity 0.2s;
}

.course-detail-page .course-external-link:hover {
    opacity: 0.9;
}

.course-detail-page .page-footer {
    margin-top: 4rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--cd-border);
    text-align: center;
    font-size: 0.9rem;
    color: var(--cd-muted-foreground);
}

.course-detail-page .cd-error {
    padding: 4rem 2rem;
    text-align: center;
    width: 100%;
}

.course-detail-page .cd-error a {
    color: var(--cd-accent);
    font-weight: 600;
}

@media (max-width: 1024px) {
    .course-detail-page .two-col {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .course-detail-page .topic-grid,
    .course-detail-page .improvement-grid {
        grid-template-columns: 1fr;
    }

    .course-detail-page .sidebar {
        width: 240px;
        padding: 1.5rem 1rem;
    }

    .course-detail-page .main-content {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 768px) {
    .course-detail-page #course-detail-container {
        flex-direction: column;
    }

    .course-detail-page .sidebar {
        width: 100%;
        height: auto;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--cd-border);
        padding: 1rem;
    }

    .course-detail-page .sidebar-nav {
        flex-direction: row;
        flex-wrap: wrap;
        border-bottom: none;
        padding: 0;
    }

    .course-detail-page .sidebar-nav a {
        padding: 0.3rem 0.5rem;
        font-size: 0.8rem;
    }

    .course-detail-page .sidebar-footer {
        display: none;
    }

    .course-detail-page .sidebar-header {
        border-bottom: none;
        padding-bottom: 0;
        width: 100%;
    }

    .course-detail-page .hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .course-detail-page .main-content {
        padding: 1rem;
    }

    .course-detail-page .grade-left {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }

    .course-detail-page .grade-letter {
        font-size: 2.5rem;
    }

    .course-detail-page .doc-embed-pdf {
        height: 360px;
    }
}