/* =============================================================
   SINGLE POST — single.php
   Hero header, featured image, content, author box, nav, comments
   ============================================================= */

.shahab-single-post {
    background: var(--color-bg);
}

/* ---------- Hero header ---------- */
.shahab-single-post__hero {
    position: relative;
    background:
        radial-gradient(ellipse at 85% 15%, rgba(255, 193, 7, 0.1) 0%, transparent 60%),
        linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-text-inverse);
    padding: clamp(56px, 7vw, 96px) 0;
    text-align: center;
    overflow: hidden;
}

.shahab-single-post__hero-inner {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.shahab-single-post__category {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin: 0 0 16px;
}

.shahab-single-post__category a {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: var(--color-accent);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: background 180ms ease, color 180ms ease;
}

.shahab-single-post__category a:hover {
    background: var(--color-accent);
    color: var(--color-primary-dark);
}

.shahab-single-post__title {
    margin: 0 0 20px;
    color: var(--color-text-inverse);
    font-size: clamp(28px, 4.5vw, 48px);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

.shahab-single-post__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 18px;
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--font-size-sm);
}

.shahab-single-post__meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.shahab-single-post__meta-item img.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

/* ---------- Featured image ---------- */
.shahab-single-post__media {
    padding-top: clamp(24px, 4vw, 48px);
}

.shahab-single-post__image {
    width: 100%;
    height: auto;
    max-height: 520px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* ---------- Content ---------- */
.shahab-single-post__content {
    padding-top: clamp(32px, 5vw, 56px);
    padding-bottom: clamp(40px, 6vw, 64px);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-text);
}

.shahab-single-post__content > * {
    margin-bottom: var(--space-6);
}

.shahab-single-post__content h2 {
    margin-top: var(--space-12);
    color: var(--color-primary-dark);
    font-size: var(--font-size-3xl);
}

.shahab-single-post__content h3 {
    margin-top: var(--space-10);
    color: var(--color-primary-dark);
    font-size: var(--font-size-2xl);
}

.shahab-single-post__content h4 {
    margin-top: var(--space-8);
    color: var(--color-primary-dark);
    font-size: var(--font-size-xl);
}

.shahab-single-post__content img {
    border-radius: var(--radius-lg);
    margin-block: var(--space-8);
}

.shahab-single-post__content blockquote {
    margin: var(--space-8) 0;
    padding: var(--space-6) var(--space-8);
    border-left: 4px solid var(--color-accent);
    background: var(--color-bg-soft);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--color-primary-dark);
}

.shahab-single-post__content ul,
.shahab-single-post__content ol {
    list-style: revert;
    padding-left: var(--space-6);
    margin-bottom: var(--space-6);
}

.shahab-single-post__content li {
    margin-bottom: var(--space-2);
}

.shahab-single-post__content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.shahab-single-post__content a:hover {
    color: var(--color-primary-light);
}

.shahab-single-post__content .wp-caption {
    max-width: 100%;
}

.shahab-single-post__content .wp-caption-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-align: center;
    margin-top: var(--space-2);
}

/* ---------- Tags ---------- */
.shahab-single-post__tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-soft);
}

.shahab-single-post__tags-label {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-dark);
}

.shahab-single-post__tags a {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--color-primary-muted);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: background 180ms ease, color 180ms ease;
}

.shahab-single-post__tags a:hover {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

/* ---------- Author box ---------- */
.shahab-single-post__author {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: var(--space-8);
    margin-bottom: var(--space-12);
    border-radius: var(--radius-lg);
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border-soft);
}

.shahab-single-post__author-avatar img {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
}

.shahab-single-post__author-label {
    margin: 0 0 4px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.shahab-single-post__author-name {
    margin: 0 0 8px;
    color: var(--color-primary-dark);
    font-size: var(--font-size-lg);
}

.shahab-single-post__author-bio {
    margin: 0;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

/* ---------- Prev / Next navigation ---------- */
.shahab-single-post__nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding-bottom: var(--space-12);
}

.shahab-single-post__nav-link {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border-soft);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.shahab-single-post__nav-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-muted);
}

.shahab-single-post__nav-link--next {
    text-align: right;
}

.shahab-single-post__nav-direction {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary);
}

.shahab-single-post__nav-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    line-height: 1.4;
}

/* ---------- Comments ---------- */
.shahab-single-post .comment-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-8);
}

.shahab-single-post .comment-list .comment {
    margin-bottom: var(--space-6);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border-soft);
}

.shahab-single-post .comment-list .children {
    list-style: none;
    padding-left: var(--space-8);
    margin-top: var(--space-6);
}

.shahab-single-post .comment-author {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: var(--space-2);
}

.shahab-single-post .comment-author img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.shahab-single-post .comment-author .fn {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-dark);
}

.shahab-single-post .comment-metadata {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-3);
}

.shahab-single-post .comment-content {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.shahab-single-post .comment-respond {
    margin-top: var(--space-8);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border-soft);
}

.shahab-single-post .comment-reply-title {
    margin-bottom: var(--space-6);
    color: var(--color-primary-dark);
    font-size: var(--font-size-xl);
}

.shahab-single-post .comment-form label {
    display: block;
    margin-bottom: 4px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

.shahab-single-post .comment-form input[type="text"],
.shahab-single-post .comment-form input[type="email"],
.shahab-single-post .comment-form input[type="url"],
.shahab-single-post .comment-form textarea {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    color: var(--color-text);
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

.shahab-single-post .comment-form input:focus,
.shahab-single-post .comment-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-muted);
}

.shahab-single-post .comment-form .submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 24px;
    border: 0;
    border-radius: 999px;
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: background 180ms ease, transform 180ms ease;
}

.shahab-single-post .comment-form .submit:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .shahab-single-post__hero {
        padding: 48px 0 56px;
    }

    .shahab-single-post__meta {
        gap: 12px;
        font-size: var(--font-size-xs);
    }

    .shahab-single-post__author {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: var(--space-6);
    }

    .shahab-single-post__nav {
        grid-template-columns: 1fr;
    }

    .shahab-single-post__nav-link--next {
        text-align: left;
    }
}