/* ============================================================
   Blog post — editorial reading layout, dark dashboard theme.
   Styles the server-rendered (sanitized) markdown inside .bp-content.
   NOTE: the content div is `.bp-content` (NOT `.bp-body`, which is the
   <body> element) so page-level rules don't bleed into the article.
   Tokens only.
   ============================================================ */
.bp-body {
    background: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
}
/* Calm the busy 3D-grid background (base.css body::before) with a near-opaque
   dark overlay so the article is comfortable to read. Replaces body::after. */
.bp-body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(ellipse at 20% -5%, rgba(74, 158, 255, 0.06), transparent 45%),
        linear-gradient(180deg, rgba(8, 12, 22, 0.94) 0%, rgba(5, 9, 17, 0.98) 100%);
}
.bp-main {
    position: relative;
    z-index: 1;
    padding: var(--space-xl) 0 var(--space-3xl);
}
.bp-shell {
    width: min(720px, calc(100vw - 32px));
    margin: 0 auto;
}

.bp-back {
    display: inline-block;
    margin-bottom: var(--space-xl);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--accent-highlight);
    text-decoration: none;
    opacity: 0.85;
}
.bp-back:hover { opacity: 1; }

/* ── Header ── */
.bp-head {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(74, 158, 255, 0.14);
}
.bp-cat {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: var(--font-semibold);
    color: var(--accent-highlight);
    margin-bottom: var(--space-md);
}
.bp-title {
    font-size: clamp(30px, 4.6vw, 46px);
    font-weight: var(--font-bold);
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin: 0 0 var(--space-md);
    color: #f5fbff;
}
.bp-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--text-muted);
}
.bp-dot { opacity: 0.5; }
.bp-cover {
    width: 100%;
    border-radius: var(--radius-lg);
    margin: 0 0 var(--space-2xl);
    border: 1px solid rgba(74, 158, 255, 0.14);
    display: block;
}

/* ── Article body typography ── */
.bp-content {
    font-size: 18px;
    line-height: 1.8;
    color: #c4cfdb;
}
.bp-content > *:first-child { margin-top: 0; }
/* Lead paragraph reads a touch larger / lighter. */
.bp-content > p:first-of-type {
    font-size: 19px;
    color: var(--text-secondary);
}
.bp-content h2,
.bp-content h3,
.bp-content h4 {
    color: #eef5fb;
    line-height: 1.25;
    letter-spacing: -0.01em;
    margin: var(--space-2xl) 0 var(--space-md);
}
.bp-content h2 {
    font-size: clamp(24px, 3vw, 30px);
    font-weight: var(--font-bold);
}
.bp-content h3 { font-size: clamp(20px, 2.4vw, 23px); font-weight: var(--font-semibold); }
.bp-content h4 { font-size: var(--text-lg); font-weight: var(--font-semibold); }
.bp-content p { margin: 0 0 var(--space-lg); }
.bp-content a {
    color: var(--accent-highlight);
    text-decoration: underline;
    text-decoration-color: rgba(4, 137, 205, 0.5);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--transition-fast);
}
.bp-content a:hover { text-decoration-color: var(--accent-highlight); }
.bp-content strong { color: #eef5fb; font-weight: var(--font-semibold); }
.bp-content ul, .bp-content ol { margin: 0 0 var(--space-lg); padding-left: 1.5em; }
.bp-content li { margin-bottom: var(--space-sm); }
.bp-content li::marker { color: var(--accent-highlight); }
.bp-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--space-xl) 0;
    border: 1px solid rgba(74, 158, 255, 0.12);
    display: block;
}
.bp-content blockquote {
    margin: var(--space-xl) 0;
    padding: var(--space-md) var(--space-xl);
    border-left: 3px solid var(--accent-highlight);
    background: rgba(7, 89, 144, 0.08);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text-secondary);
    font-style: italic;
}
.bp-content blockquote p:last-child { margin-bottom: 0; }
.bp-content code {
    font-family: var(--font-mono, ui-monospace, monospace);
    font-size: 0.88em;
    background: rgba(110, 160, 220, 0.12);
    padding: 2px 7px;
    border-radius: 5px;
    color: #d6e4f0;
}
.bp-content pre {
    background: #0a1422;
    border: 1px solid rgba(74, 158, 255, 0.14);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    overflow-x: auto;
    margin: 0 0 var(--space-lg);
    line-height: 1.6;
}
.bp-content pre code { background: none; padding: 0; font-size: 0.9em; color: #c9d6e3; }
.bp-content hr {
    border: none;
    border-top: 1px solid rgba(74, 158, 255, 0.16);
    margin: var(--space-2xl) 0;
}
.bp-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 var(--space-lg);
    font-size: var(--text-sm);
}
.bp-content th, .bp-content td {
    border: 1px solid var(--border-default);
    padding: 8px 12px;
    text-align: left;
}
.bp-content th { background: var(--bg-subtle); color: var(--text-primary); font-weight: var(--font-semibold); }

/* ── CTA ── */
.bp-cta {
    margin-top: var(--space-3xl);
    padding: var(--space-2xl) var(--space-xl);
    text-align: center;
    border: 1px solid rgba(74, 158, 255, 0.18);
    border-radius: var(--radius-xl);
    background:
        radial-gradient(ellipse at 50% 0%, rgba(7, 89, 144, 0.22), transparent 65%),
        linear-gradient(180deg, rgba(74, 158, 255, 0.04), transparent);
}
.bp-cta-title { font-size: var(--text-xl); font-weight: var(--font-bold); color: var(--text-primary); margin: 0 0 var(--space-sm); }
.bp-cta-sub { font-size: var(--text-md); color: var(--text-secondary); margin: 0 0 var(--space-lg); }
.bp-cta-btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
    color: #fff;
    font-weight: var(--font-semibold);
    text-decoration: none;
    transition: filter var(--transition-fast), transform var(--transition-fast);
}
.bp-cta-btn:hover { filter: brightness(1.12); transform: translateY(-1px); }

.bp-notfound { padding: var(--space-3xl) 0; text-align: center; color: var(--text-secondary); }
.bp-notfound a { color: var(--accent-highlight); }

@media (max-width: 520px) {
    .bp-main { padding: var(--space-lg) 0 var(--space-2xl); }
    .bp-content { font-size: 17px; }
}
