/* ============================================
   Reflection Blog Post - Custom Styles
   ============================================ */

/* Banner image */
.article-banner {
    width: 100%;
    aspect-ratio: 4 / 1;
    margin-bottom: 2rem;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(5, 150, 105, 0.1) 0%, rgba(37, 99, 235, 0.1) 100%);
}

.article-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Article header */
.article-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}

.article-header h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.article-meta {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

.article-meta .course-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-accent-teaching);
    background: rgba(5, 150, 105, 0.1);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    margin-top: 0.5rem;
}

/* Article content */
.article-content {
    max-width: 800px;
    margin: 0 auto;
}

.article-content h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 2.5rem 0 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    letter-spacing: -0.01em;
}

.article-content h2:first-of-type {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.article-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 2rem 0 0.75rem;
    letter-spacing: -0.01em;
}

.article-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 1rem;
}

.article-content a {
    color: var(--color-accent-teaching);
    text-decoration: none;
    transition: color var(--transition-smooth);
}

.article-content a:hover {
    text-decoration: underline;
}

/* Horizontal rule */
.article-content hr {
    border: none;
    height: 1px;
    background: var(--color-border);
    margin: 2rem 0;
}

/* Image gallery for wide images */
.evaluation-gallery {
    margin: 1.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.evaluation-image {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 12px -4px rgba(0, 0, 0, 0.1);
    transition: box-shadow var(--transition-smooth);
}

.evaluation-image:hover {
    box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.15);
}

/* Student comments section */
.student-comments {
    margin: 1.5rem 0;
}

.student-comments h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.comment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comment-list li {
    position: relative;
    padding: 0.6rem 0 0.6rem 1.75rem;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-muted);
}

.comment-list li::before {
    content: '"';
    position: absolute;
    left: 0;
    top: 0.35rem;
    font-size: 1.5rem;
    font-family: Georgia, serif;
    color: rgba(5, 150, 105, 0.4);
    line-height: 1;
}

/* Numbered list */
.numbered-list {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.numbered-list li {
    margin-bottom: 0.5rem;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
}

/* Collapsible reference block */
.collapsible-block {
    margin: 1.5rem 0;
    background: rgba(5, 150, 105, 0.04);
    border: 1px solid rgba(5, 150, 105, 0.15);
    border-radius: 12px;
    overflow: hidden;
}

.collapsible-block summary {
    padding: 1rem 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    transition: background var(--transition-smooth);
}

.collapsible-block summary::-webkit-details-marker {
    display: none;
}

.collapsible-block summary:hover {
    background: rgba(5, 150, 105, 0.08);
}

.collapsible-block summary::before {
    content: '▶';
    font-size: 0.7rem;
    color: var(--color-accent-teaching);
    transition: transform var(--transition-smooth);
}

.collapsible-block[open] summary::before {
    transform: rotate(90deg);
}

.collapsible-preview {
    font-weight: 400;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-style: italic;
    margin-left: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 400px;
}

.collapsible-content {
    padding: 0 1.25rem 1.25rem;
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--color-text-muted);
    border-top: 1px solid rgba(5, 150, 105, 0.1);
}

.collapsible-content p {
    margin-bottom: 1rem;
    color: var(--color-text-muted);
}

.collapsible-content p:last-child {
    margin-bottom: 0;
}

/* Reflection note block */
.reflection-note {
    background: rgba(5, 150, 105, 0.05);
    border-left: 3px solid var(--color-accent-teaching);
    padding: 1rem 1.25rem;
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
}

.reflection-note p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 640px) {
    .article-content h2 {
        font-size: 1.5rem;
    }

    .article-content h3 {
        font-size: 1.15rem;
    }

    .collapsible-preview {
        display: none;
    }
}