/* ════════════════════════════════════════════
   BN Blog Post – bnbp-style.css v1.0.0
   Bariatric Nepal
════════════════════════════════════════════ */

/* ── VARIABLES ────────────────────────────── */
.bnbp-wrap {
    --bn-primary:  #0d2b5e;
    --bn-accent:   #2ecc71;
    --bn-accent2:  #27ae60;
    --bn-bg:       #ffffff;
    --bn-bg-alt:   #f4f7fb;
    --bn-text:     #1a1a2e;
    --bn-muted:    #5a6a7a;
    --bn-border:   #e2e8f0;
    --bn-radius:   12px;
    --bn-shadow:   0 4px 24px rgba(13,43,94,.08);
    --bn-font:     'Segoe UI', system-ui, -apple-system, sans-serif;

    font-family: var(--bn-font);
    color: var(--bn-text);
    line-height: 1.7;
    box-sizing: border-box;
    width: 100%;
    overflow-x: hidden;
    background: var(--bn-bg);
}
.bnbp-wrap *, .bnbp-wrap *::before, .bnbp-wrap *::after { box-sizing: inherit; }

/* ── HERO ─────────────────────────────────── */
.bnbp-hero {
    position: relative;
    background: var(--bn-primary);
    min-height: 380px;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
}
.bnbp-hero-img {
    position: absolute; inset: 0;
}
.bnbp-hero-img img {
    width: 100%; height: 100%;
    object-fit: cover; display: block;
    filter: brightness(.55);
}
.bnbp-hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(13,43,94,.92) 0%, rgba(13,43,94,.3) 60%, transparent 100%);
}
.bnbp-hero-content {
    position: relative; z-index: 2;
    width: 100%; max-width: 860px;
    margin: 0 auto;
    padding: 48px 24px 40px;
}
.bnbp-cats { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.bnbp-cat-badge {
    display: inline-block;
    background: var(--bn-accent);
    color: #fff; font-size: 11px; font-weight: 700;
    letter-spacing: .6px; text-transform: uppercase;
    padding: 4px 12px; border-radius: 20px;
    text-decoration: none;
    transition: background .2s;
}
.bnbp-cat-badge:hover { background: var(--bn-accent2); }

.bnbp-title {
    margin: 0 0 20px;
    font-size: clamp(22px, 4vw, 38px);
    font-weight: 800; line-height: 1.25;
    color: #fff;
    letter-spacing: -.3px;
}

.bnbp-meta {
    display: flex; align-items: center;
    flex-wrap: wrap; gap: 8px 14px;
    font-size: 13px; color: rgba(255,255,255,.82);
}
.bnbp-meta svg { width: 14px; height: 14px; vertical-align: -2px; margin-right: 4px; }
.bnbp-meta-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    object-fit: cover; border: 2px solid var(--bn-accent);
}
.bnbp-meta-author a { color: #fff; text-decoration: none; font-weight: 600; }
.bnbp-meta-author a:hover { color: var(--bn-accent); }
.bnbp-meta-sep { opacity: .5; }

/* ── BODY GRID ────────────────────────────── */
.bnbp-body {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    max-width: 1160px;
    margin: 0 auto;
    padding: 40px 24px 60px;
    align-items: start;
}

/* ── SIDEBAR ──────────────────────────────── */
.bnbp-sidebar {
    position: sticky; top: 80px;
    display: flex; flex-direction: column; gap: 20px;
}

/* TOC box */
.bnbp-toc-box {
    background: var(--bn-bg);
    border: 1.5px solid var(--bn-border);
    border-radius: var(--bn-radius);
    box-shadow: var(--bn-shadow);
    overflow: hidden;
}
.bnbp-toc-header {
    display: flex; align-items: center; gap: 8px;
    padding: 14px 16px;
    background: var(--bn-primary); color: #fff;
    font-size: 13px; font-weight: 700; letter-spacing: .2px;
}
.bnbp-toc-header svg { width: 16px; height: 16px; flex-shrink: 0; }
.bnbp-toc-header span { flex: 1; }
.bnbp-toc-toggle {
    background: none; border: none; color: #fff;
    font-size: 18px; cursor: pointer; padding: 0 2px;
    line-height: 1; transition: transform .25s;
}
.bnbp-toc-toggle[aria-expanded="false"] { transform: rotate(-90deg); }

.bnbp-toc-nav { padding: 12px 0; }
.bnbp-toc-list { list-style: none; margin: 0; padding: 0; }
.bnbp-toc-item { margin: 0; }
.bnbp-toc-sub { padding-left: 16px; }
.bnbp-toc-link {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 7px 16px;
    font-size: 13px; color: var(--bn-text);
    text-decoration: none; line-height: 1.4;
    transition: background .15s, color .15s;
    border-left: 3px solid transparent;
}
.bnbp-toc-link:hover,
.bnbp-toc-link.active {
    background: var(--bn-bg-alt);
    color: var(--bn-primary);
    border-left-color: var(--bn-accent);
}
.bnbp-toc-num {
    flex-shrink: 0;
    width: 20px; height: 20px;
    background: var(--bn-primary); color: #fff;
    border-radius: 50%;
    font-size: 10px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    margin-top: 1px;
}
.bnbp-toc-dot {
    flex-shrink: 0; width: 6px; height: 6px;
    background: var(--bn-accent); border-radius: 50%;
    margin-top: 6px; margin-left: 7px;
}

/* Share box */
.bnbp-share-box {
    background: var(--bn-bg);
    border: 1.5px solid var(--bn-border);
    border-radius: var(--bn-radius);
    box-shadow: var(--bn-shadow);
    padding: 16px;
}
.bnbp-share-label {
    font-size: 12px; font-weight: 700; text-transform: uppercase;
    letter-spacing: .6px; color: var(--bn-muted);
    display: flex; align-items: center; gap: 6px; margin-bottom: 12px;
}
.bnbp-share-label svg { width: 14px; height: 14px; }
.bnbp-share-btns { display: flex; flex-direction: column; gap: 8px; }
.bnbp-share-btn {
    display: flex; align-items: center; gap: 8px;
    padding: 9px 14px; border-radius: 8px;
    font-size: 13px; font-weight: 600;
    text-decoration: none; color: #fff;
    transition: opacity .15s, transform .15s;
}
.bnbp-share-btn:hover { opacity: .88; transform: translateY(-1px); }
.bnbp-share-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.bnbp-share-fb { background: #1877f2; }
.bnbp-share-tw { background: #1da1f2; }
.bnbp-share-wa { background: #25d366; }
.bnbp-share-li { background: #0077b5; }

/* ── MAIN CONTENT ─────────────────────────── */
.bnbp-main { min-width: 0; }

/* Mobile TOC (hidden on desktop) */
.bnbp-toc-mobile { display: none; }

/* Article content */
.bnbp-content {
    font-size: 16px; line-height: 1.8;
    color: var(--bn-text);
}
.bnbp-content h2 {
    font-size: clamp(19px, 2.5vw, 24px);
    font-weight: 800; color: var(--bn-primary);
    margin: 40px 0 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--bn-accent);
    line-height: 1.3;
}
.bnbp-content h3 {
    font-size: clamp(16px, 2vw, 20px);
    font-weight: 700; color: var(--bn-primary);
    margin: 32px 0 12px;
}
.bnbp-content h4 {
    font-size: 16px; font-weight: 700;
    color: var(--bn-text); margin: 24px 0 10px;
}
.bnbp-content p { margin: 0 0 18px; }
.bnbp-content ul, .bnbp-content ol {
    margin: 0 0 18px; padding-left: 22px;
}
.bnbp-content li { margin-bottom: 8px; }
.bnbp-content a { color: var(--bn-primary); text-decoration: underline; }
.bnbp-content a:hover { color: var(--bn-accent2); }
.bnbp-content img {
    max-width: 100%; height: auto;
    border-radius: var(--bn-radius);
    box-shadow: var(--bn-shadow);
    margin: 8px 0 20px;
    display: block;
}
.bnbp-content blockquote {
    margin: 28px 0;
    padding: 18px 20px 18px 24px;
    border-left: 4px solid var(--bn-accent);
    background: var(--bn-bg-alt);
    border-radius: 0 var(--bn-radius) var(--bn-radius) 0;
    font-style: italic; color: var(--bn-muted);
    font-size: 16px;
}
.bnbp-content blockquote p:last-child { margin: 0; }
.bnbp-content table {
    width: 100%; border-collapse: collapse;
    margin: 20px 0; font-size: 14px;
}
.bnbp-content th {
    background: var(--bn-primary); color: #fff;
    padding: 10px 14px; text-align: left;
    font-weight: 700; font-size: 13px;
}
.bnbp-content td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--bn-border);
}
.bnbp-content tr:nth-child(even) td { background: var(--bn-bg-alt); }
.bnbp-content code {
    font-size: 13px; background: var(--bn-bg-alt);
    border: 1px solid var(--bn-border);
    padding: 2px 6px; border-radius: 4px;
    font-family: 'Courier New', monospace;
}
.bnbp-content pre {
    background: #1a1a2e; color: #e2e8f0;
    padding: 20px; border-radius: var(--bn-radius);
    overflow-x: auto; font-size: 13px;
    margin: 0 0 20px;
}
.bnbp-content pre code {
    background: none; border: none;
    padding: 0; color: inherit;
}

/* Tags */
.bnbp-tags {
    display: flex; align-items: center;
    flex-wrap: wrap; gap: 8px;
    margin: 32px 0;
    padding-top: 24px;
    border-top: 1.5px solid var(--bn-border);
}
.bnbp-tags svg { width: 16px; height: 16px; color: var(--bn-muted); flex-shrink: 0; }
.bnbp-tag {
    display: inline-block;
    background: var(--bn-bg-alt);
    border: 1.5px solid var(--bn-border);
    color: var(--bn-primary);
    font-size: 12px; font-weight: 600;
    padding: 4px 12px; border-radius: 20px;
    text-decoration: none;
    transition: background .15s, border-color .15s;
}
.bnbp-tag:hover { background: var(--bn-primary); color: #fff; border-color: var(--bn-primary); }

/* Mobile share (hidden on desktop) */
.bnbp-share-mobile { display: none; }

/* Author box */
.bnbp-author-box {
    display: flex; gap: 20px; align-items: flex-start;
    background: var(--bn-bg-alt);
    border: 1.5px solid var(--bn-border);
    border-radius: var(--bn-radius);
    padding: 24px;
    margin: 32px 0;
    box-shadow: var(--bn-shadow);
}
.bnbp-author-avatar {
    width: 72px; height: 72px;
    border-radius: 50%; object-fit: cover;
    border: 3px solid var(--bn-accent);
    flex-shrink: 0;
}
.bnbp-author-body { flex: 1; }
.bnbp-author-label {
    font-size: 11px; font-weight: 700; text-transform: uppercase;
    letter-spacing: .6px; color: var(--bn-muted); margin: 0 0 4px;
}
.bnbp-author-name {
    display: block; font-size: 17px; font-weight: 800;
    color: var(--bn-primary); text-decoration: none; margin-bottom: 8px;
}
.bnbp-author-name:hover { color: var(--bn-accent2); }
.bnbp-author-bio {
    font-size: 14px; color: var(--bn-muted);
    margin: 0; line-height: 1.6;
}

/* Related posts */
.bnbp-related { margin-top: 40px; }
.bnbp-related-title {
    font-size: 20px; font-weight: 800;
    color: var(--bn-primary); margin: 0 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--bn-accent);
}
.bnbp-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.bnbp-related-card {
    display: flex; flex-direction: column;
    text-decoration: none; color: var(--bn-text);
    background: var(--bn-bg);
    border: 1.5px solid var(--bn-border);
    border-radius: var(--bn-radius);
    overflow: hidden;
    box-shadow: var(--bn-shadow);
    transition: transform .2s, box-shadow .2s;
}
.bnbp-related-card:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(13,43,94,.13); }
.bnbp-related-img { position: relative; height: 130px; overflow: hidden; }
.bnbp-related-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s; }
.bnbp-related-card:hover .bnbp-related-img img { transform: scale(1.05); }
.bnbp-related-img-placeholder { width: 100%; height: 100%; background: var(--bn-bg-alt); }
.bnbp-related-cat {
    position: absolute; top: 8px; left: 8px;
    background: var(--bn-accent); color: #fff;
    font-size: 9px; font-weight: 700; letter-spacing: .4px;
    text-transform: uppercase; padding: 3px 8px; border-radius: 4px;
}
.bnbp-related-body { padding: 12px 14px 14px; }
.bnbp-related-body h4 {
    margin: 0 0 6px; font-size: 14px;
    font-weight: 700; line-height: 1.4;
    color: var(--bn-primary);
}
.bnbp-related-body span { font-size: 12px; color: var(--bn-muted); }

/* Back to top */
.bnbp-back-top {
    position: fixed; bottom: 28px; right: 24px; z-index: 999;
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--bn-primary); color: #fff;
    border: none; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 16px rgba(13,43,94,.25);
    transition: background .2s, transform .2s;
}
.bnbp-back-top:hover { background: var(--bn-accent2); transform: translateY(-2px); }
.bnbp-back-top svg { width: 20px; height: 20px; }
.bnbp-back-top[hidden] { display: none !important; }

/* ── TABLET ───────────────────────────────── */
@media (max-width: 900px) {
    .bnbp-body {
        grid-template-columns: 220px 1fr;
        gap: 20px; padding: 28px 16px 48px;
    }
}

/* ── MOBILE ───────────────────────────────── */
@media (max-width: 680px) {
    .bnbp-wrap { overflow-x: visible; }
    .bnbp-hero {
        min-height: 280px;
        margin-left: -16px;
        margin-right: -16px;
        width: calc(100% + 32px);
    }
    .bnbp-hero-content { padding: 32px 16px 28px; }

    /* Hide desktop sidebar */
    .bnbp-sidebar { display: none; }

    /* Single column */
    .bnbp-body {
        grid-template-columns: 1fr;
        gap: 0; padding: 0 0 40px;
    }
    .bnbp-main { padding: 0 16px; }

    /* Mobile TOC */
    .bnbp-toc-mobile {
        display: block;
        margin: 20px 0 4px;
        border: 1.5px solid var(--bn-border);
        border-radius: var(--bn-radius);
        overflow: hidden;
        box-shadow: var(--bn-shadow);
    }
    .bnbp-toc-mobile-trigger {
        width: 100%; display: flex; align-items: center; gap: 10px;
        padding: 13px 16px;
        background: var(--bn-primary); color: #fff;
        border: none; cursor: pointer;
        font-family: var(--bn-font); font-size: 14px; font-weight: 700;
        text-align: left;
    }
    .bnbp-toc-mobile-trigger svg { width: 16px; height: 16px; flex-shrink: 0; }
    .bnbp-toc-mobile-trigger span:nth-child(2) { flex: 1; }
    .bnbp-toc-mobile-arrow {
        font-size: 18px; transition: transform .25s; line-height: 1;
    }
    .bnbp-toc-mobile-trigger[aria-expanded="true"] .bnbp-toc-mobile-arrow { transform: rotate(90deg); }
    .bnbp-toc-mobile-nav { background: var(--bn-bg); padding: 8px 0; }
    .bnbp-toc-mobile-nav[hidden] { display: none; }

    /* Mobile share */
    .bnbp-share-mobile {
        display: block;
        margin: 24px 0;
        padding: 16px;
        background: var(--bn-bg-alt);
        border: 1.5px solid var(--bn-border);
        border-radius: var(--bn-radius);
    }
    .bnbp-share-mobile .bnbp-share-label {
        margin-bottom: 12px;
    }
    .bnbp-share-mobile .bnbp-share-btns {
        flex-direction: row; gap: 10px;
    }
    .bnbp-share-mobile .bnbp-share-btn {
        flex: 1; justify-content: center;
        padding: 10px 6px; font-size: 0; /* icon only on small */
        border-radius: 10px;
    }
    .bnbp-share-mobile .bnbp-share-btn svg { width: 20px; height: 20px; margin: 0; }

    /* Related posts: vertical list like screenshot */
    .bnbp-related-grid { display: flex; flex-direction: column; gap: 0; }
    .bnbp-related-card {
        flex-direction: row; align-items: center;
        gap: 10px; padding: 10px 4px;
        border-radius: 0; border: none;
        border-bottom: 1px solid var(--bn-border);
        box-shadow: none;
    }
    .bnbp-related-card:last-child { border-bottom: none; }
    .bnbp-related-card:hover { transform: none; box-shadow: none; }
    .bnbp-related-img {
        width: 58px; height: 58px; flex-shrink: 0;
        border-radius: 8px; overflow: hidden;
    }
    .bnbp-related-img img { width: 100%; height: 100%; object-fit: cover; }
    .bnbp-related-cat { display: none; }
    .bnbp-related-body { flex: 1; padding: 0; }
    .bnbp-related-body h4 { font-size: 14px; font-weight: 600; margin: 0 0 5px; line-height: 1.35; }
    .bnbp-related-body span { font-size: 12px; color: var(--bn-muted); }

    /* Author box - hidden on mobile */
    .bnbp-author-box { display: none; }

    /* Content font */
    .bnbp-content { font-size: 15px; }

    /* Scroll table */
    .bnbp-content table { display: block; overflow-x: auto; }

    /* Back to top smaller */
    .bnbp-back-top { bottom: 20px; right: 16px; width: 40px; height: 40px; }
}