/* ── Blog Header ── */
.blog-header {
    background: var(--hero-bg);
    color: var(--hero-text);
    padding: 8rem 2rem 3rem;
    text-align: center;
    transition: background 0.3s, color 0.3s;
}

.blog-header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.blog-header .subtitle {
    font-size: 1.1rem;
    color: var(--hero-muted);
    margin-bottom: 2rem;
}

/* ── Search ── */
.blog-search {
    max-width: 500px;
    margin: 0 auto;
}

.blog-search input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--hero-text);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.blog-search input::placeholder {
    color: var(--hero-muted);
    opacity: 0.6;
}

.blog-search input:focus {
    border-color: var(--hero-text);
    outline: 2px solid var(--hero-text);
    outline-offset: -1px;
}

/* ── Category Tabs ── */
.blog-tabs {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    padding: 2rem 2rem 0;
    background: var(--bg-section);
    transition: background 0.3s;
}

.tab-btn {
    padding: 0.5rem 1.25rem;
    border: 2px solid var(--accent);
    border-radius: 20px;
    background: transparent;
    color: var(--accent);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.tab-btn:hover {
    background: var(--accent);
    color: var(--bg-section);
}

.tab-btn.active {
    background: var(--accent);
    color: var(--bg-section);
}

/* ── Posts List ── */
.blog-content {
    background: var(--bg-section);
    color: var(--text-on-blue);
    padding: 2rem 2rem 5rem;
    min-height: 50vh;
    transition: background 0.3s, color 0.3s;
}

.posts-list {
    max-width: 680px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.post-card {
    display: block;
    text-decoration: none;
    color: inherit;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1.75rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.post-card:visited {
    color: inherit;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.post-category {
    padding: 0.15rem 0.6rem;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.post-card h2 {
    font-size: 1.3rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.post-card .excerpt {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.post-footer {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.upvote-count::before {
    content: "\25B2 ";
    font-size: 0.7rem;
}

/* ── No Results ── */
.no-results {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem 0;
    font-size: 1rem;
    display: none;
}

/* ── Blog Post Page ── */
.post-page-header {
    background: var(--hero-bg);
    color: var(--hero-text);
    padding: 7rem 2rem 3rem;
    transition: background 0.3s, color 0.3s;
}

.post-page-header .container {
    max-width: 680px;
}

.back-link-bottom {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    margin-top: 2rem;
    transition: opacity 0.2s;
}

.back-link-bottom:hover {
    opacity: 0.7;
}

.back-link-bottom:visited {
    color: var(--accent);
}

.post-page-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    color: var(--hero-muted);
}

.post-page-header h1 {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.post-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 1rem;
    border: 2px solid var(--hero-text);
    border-radius: 5px;
    background: transparent;
    color: var(--hero-text);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.share-btn:hover {
    background: var(--hero-text);
    color: var(--hero-bg);
}

.post-upvotes {
    font-size: 0.9rem;
    color: var(--hero-muted);
    font-weight: 600;
}

.post-upvotes::before {
    content: "\25B2 ";
    font-size: 0.8rem;
}

/* ── Post Body ── */
.post-body {
    background: var(--bg-section);
    color: var(--text-on-blue);
    padding: 3rem 2rem 5rem;
    transition: background 0.3s, color 0.3s;
}

.post-body .container {
    max-width: 680px;
}

.post-body-content p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.post-body-content h2 {
    color: var(--accent);
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.post-body-content blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 1.25rem;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-style: italic;
}

.post-body-content pre {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 1.25rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ── Prev / Next Navigation ── */
.post-nav {
    position: static;
    width: auto;
    box-shadow: none;
    z-index: auto;
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
}

.post-nav a {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-decoration: none;
    color: var(--accent);
    font-weight: 600;
    transition: opacity 0.2s;
    max-width: 45%;
}

.post-nav a:hover {
    opacity: 0.7;
}

.post-nav a:visited {
    color: var(--accent);
}

.post-nav .nav-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.post-nav .nav-title {
    font-size: 0.95rem;
    line-height: 1.3;
}

.post-nav .next-post {
    text-align: right;
    margin-left: auto;
}

/* ── Post Not Found ── */
.post-not-found {
    text-align: center;
    padding: 5rem 2rem;
    color: var(--text-muted);
}

.post-not-found h2 {
    margin-bottom: 1rem;
}

.post-not-found a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

/* ── Active nav link ── */
.nav-active {
    opacity: 1 !important;
    border-bottom: 2px solid var(--nav-text);
    padding-bottom: 2px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .blog-header {
        padding: 6rem 1.25rem 2rem;
    }

    .blog-header h1 {
        font-size: 2.2rem;
    }

    .blog-tabs {
        padding: 1.5rem 1.25rem 0;
        flex-wrap: wrap;
    }

    .blog-content {
        padding: 1.5rem 1.25rem 3.5rem;
    }

    .post-page-header {
        padding: 6rem 1.25rem 2rem;
    }

    .post-page-header h1 {
        font-size: 2rem;
    }

    .post-body {
        padding: 2rem 1.25rem 3.5rem;
    }

    .post-nav {
        flex-direction: column;
    }

    .post-nav a {
        max-width: 100%;
    }

    .post-nav .next-post {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .blog-header h1 {
        font-size: 1.8rem;
    }

    .post-page-header h1 {
        font-size: 1.6rem;
    }

    .post-actions {
        flex-wrap: wrap;
    }
}