/* public/css/single-post.css */

.sp-container {
    max-width: var(--container-max);
    margin: calc(var(--nav-height, 80px) + 32px) auto 64px auto;
    padding: 0 var(--container-gutter);
    font-family: var(--ff-primary);
}

.sp-hero {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3; /* 4:3 landscape ratio */
    border-radius: var(--rd-lg);
    overflow: hidden;
    margin-bottom: 48px;
    background-color: var(--clr-canvas);
}

.sp-hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Centered Reading Layout */
.sp-article {
    max-width: 800px;
    margin: 0 auto;
}

.sp-header {
    text-align: center;
    margin-bottom: 48px;
}

.sp-date {
    font-size: var(--fs-body-sm);
    font-weight: var(--fw-bold);
    color: var(--clr-mute);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    display: inline-block;
}

.sp-title {
    font-family: var(--ff-display);
    font-size: var(--fs-display-lg);
    font-weight: var(--fw-bold);
    color: var(--clr-ink);
    line-height: 1.2;
    letter-spacing: -1px;
    margin: 0 0 24px 0;
}

.sp-content {
    font-size: var(--fs-body-lg);
    line-height: 1.8;
    color: var(--clr-body);
}

.sp-content p {
    margin-bottom: 24px;
}

.sp-content h2,
.sp-content h3 {
    color: var(--clr-ink);
    margin-top: 48px;
    margin-bottom: 24px;
    font-family: var(--ff-display);
    font-weight: var(--fw-bold);
}

.sp-content h2 {
    font-size: var(--fs-heading-xl);
}

.sp-content h3 {
    font-size: var(--fs-heading-lg);
}

.sp-content ul,
.sp-content ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.sp-content li {
    margin-bottom: 12px;
}

.sp-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--rd-md);
    margin: 32px 0;
}

.sp-content blockquote {
    border-left: 4px solid var(--clr-primary);
    padding-left: 24px;
    margin: 32px 0;
    font-size: var(--fs-heading-md);
    font-style: italic;
    color: var(--clr-ink);
}

/* Back Button */
.sp-back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: var(--fs-body-md);
    font-weight: var(--fw-semibold);
    color: var(--clr-primary);
    text-decoration: none;
    margin-bottom: 32px;
    transition: color 0.2s ease;
}

.sp-back-link:hover {
    color: var(--clr-primary-pressed);
}

/* Related News at the bottom */
.sp-related {
    margin-top: 80px;
    padding-top: 64px;
    border-top: 1px solid var(--clr-hairline);
}

.sp-related-title {
    font-size: var(--fs-heading-xl);
    font-weight: var(--fw-bold);
    color: var(--clr-ink);
    text-align: center;
    margin-bottom: 48px;
}

.sp-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.sp-related-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: var(--rd-md);
    background: var(--clr-canvas);
    text-decoration: none;
    transition: border-color 0.2s ease, background-color 0.2s ease;
    border: 1px solid var(--clr-hairline);
}

.sp-related-card:hover {
    border-color: var(--clr-ash);
    background-color: var(--clr-surface-card);
}

.sp-related-thumb {
    width: 120px;
    height: 90px;
    border-radius: var(--rd-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.sp-related-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}

.sp-related-name {
    font-size: var(--fs-body-lg);
    font-weight: var(--fw-semibold);
    color: var(--clr-ink);
    margin: 0;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    box-orient: vertical;
    overflow: hidden;
}

.sp-related-date {
    font-size: var(--fs-caption-md);
    color: var(--clr-mute);
}