/* ============================================
   BREAKLINE SECURITY — Blog Styles
   Extends redesign.css
============================================ */

/* ── 1. Blog Index ──────────────────────────────────────────────────────── */

.blog-section { padding: var(--sp-18) 0 var(--sp-24); }

/* Tag filters */
.blog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    margin-bottom: 2.75rem;
}

.filter-btn {
    font-family: var(--mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.3rem 0.85rem;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-3);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.filter-btn:hover {
    border-color: rgba(255,255,255,0.18);
    color: var(--text-2);
}

.filter-btn.active {
    background: var(--accent-soft);
    border-color: var(--accent-border);
    color: var(--accent);
}

/* Post card grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-4);
}

.blog-card {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: var(--sp-7) var(--sp-8);
    display: flex;
    flex-direction: column;
    transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
    position: relative;
    overflow: hidden;
}

.blog-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 14px;
    background: radial-gradient(ellipse 60% 60% at 20% 20%, var(--accent-soft), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.blog-card:hover {
    border-color: var(--accent-border);
    transform: translateY(-2px);
}

.blog-card:hover::before { opacity: 1; }

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: 0.9rem;
}

.blog-card-date {
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    color: var(--text-3);
    text-transform: uppercase;
}

.blog-card-tag {
    font-family: var(--mono);
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-soft);
    border: 1px solid var(--accent-border);
    border-radius: 100px;
    padding: 0.15rem 0.55rem;
}

.blog-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.015em;
    line-height: 1.3;
    margin-bottom: 0.65rem;
    position: relative;
    z-index: 1;
}

.blog-card-title a {
    color: var(--text);
    transition: color 0.15s;
}

.blog-card-title a:hover { color: var(--accent); }

.blog-card-desc {
    font-size: 0.875rem;
    color: var(--text-2);
    line-height: 1.75;
    flex: 1;
    margin-bottom: var(--sp-6);
    position: relative;
    z-index: 1;
}

.blog-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    position: relative;
    z-index: 1;
}

.blog-card-author {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--text-3);
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.blog-card-read {
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    transition: gap 0.15s;
}

.blog-card-read:hover { gap: 0.6rem; }

/* Empty state */
.blog-empty {
    text-align: center;
    padding: var(--sp-24) var(--sp-8);
    color: var(--text-3);
}

.blog-empty i { font-size: 2.5rem; margin-bottom: var(--sp-4); display: block; }
.blog-empty p { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.08em; }

/* ── 2. Post Header ─────────────────────────────────────────────────────── */

.post-header {
    padding: calc(var(--nav-h) + 4rem) 0 3.5rem;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.post-header::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.045) 1px, transparent 1px);
    background-size: 28px 28px;
    mask-image: radial-gradient(ellipse 100% 100% at 50% 0%, black 0%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 100% 100% at 50% 0%, black 0%, transparent 80%);
    pointer-events: none;
}

.post-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 50% 80% at 50% 0%, rgba(192, 135, 44, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.post-header .wrap { position: relative; z-index: 1; }

.post-header-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: var(--sp-7);
}

.post-back {
    font-family: var(--mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    /* color: var(--text-3); */
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: color 0.15s;
}

.post-back:hover { color: var(--accent); }

.post-header-sep {
    color: var(--border);
    font-family: var(--mono);
    font-size: 0.7rem;
}

.post-header-tag {
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
}

.post-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    letter-spacing: -0.035em;
    line-height: 1.08;
    color: var(--text);
    margin-bottom: 1.1rem;
    max-width: 850px;
}

.post-subtitle {
    font-size: 1.05rem;
    color: var(--text-2);
    line-height: 1.7;
    max-width: 700px;
    margin-bottom: var(--sp-6);
}

.post-byline {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.65rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 0.06em;
}

.post-author { display: flex; align-items: center; gap: 0.4rem; }
.post-dot { color: var(--border); }

.post-tags-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.post-tag {
    font-family: var(--mono);
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-soft);
    border: 1px solid var(--accent-border);
    border-radius: 100px;
    padding: 0.18rem 0.6rem;
}

/* ── 4. Post Layout ─────────────────────────────────────────────────────── */

.post-layout { padding: var(--sp-16) 0 var(--sp-12); }

.post-wrap {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: var(--sp-16);
    align-items: start;
}

/* Hide TOC column when no TOC present — grid collapses to 1 col */
.post-wrap:has(.post-body:only-child) {
    grid-template-columns: 1fr;
    max-width: 740px;
}

/* ── 5. TOC Sidebar ─────────────────────────────────────────────────────── */

.post-toc {
    position: sticky;
    top: calc(var(--nav-h) + 1.5rem);
    align-self: start; /* don't stretch to row height, or sticky has no room to move */
    max-height: calc(100vh - var(--nav-h) - 3rem);
    overflow-y: auto; /* long TOCs still scroll within the sticky panel */
    font-size: 0.8rem;
}

.post-toc-label {
    font-family: var(--mono);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.9rem;
}

.post-toc .toc {
    list-style: none;
    padding: 0;
}

.post-toc .toc li { padding: 0.2rem 0; }

.post-toc .toc a {
    color: var(--text);
    line-height: 1.5;
    transition: color 0.15s, padding-left 0.15s;
    display: block;
}

.post-toc .toc a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.post-toc .toc ul {
    list-style: none;
    padding-left: 0.85rem;
    margin-top: 0.2rem;
    border-left: 1px solid var(--border);
}

/* ── 6. Post Body (prose) ───────────────────────────────────────────────── */

.post-body {
    color: var(--text-2);
    font-size: 1rem;
    line-height: 1.85;
    min-width: 0; /* prevent grid blowout */
}

.post-body h1,
.post-body h2,
.post-body h3,
.post-body h4 {
    color: var(--text);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
    margin: var(--sp-10) 0 0.9rem;
}

.post-body h1 { font-size: 1.9rem; }
.post-body h2 { font-size: 1.45rem; border-bottom: 1px solid var(--border); padding-bottom: var(--sp-2); }
.post-body h3 { font-size: 1.15rem; }
.post-body h4 { font-size: 1rem; color: var(--text-2); }

.post-body p { margin: 0 0 var(--sp-5); }

.post-body a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: rgba(192, 135, 44, 0.35);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.15s;
}

.post-body a:hover { text-decoration-color: var(--accent); }

.post-body strong { color: var(--text); font-weight: 600; }
.post-body em     { color: var(--text); }

/* Code */
.post-body code {
    font-family: var(--mono);
    font-size: 0.85em;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.1em 0.4em;
    color: var(--accent-hover);
}

.post-body pre {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: var(--sp-6);
    overflow-x: auto;
    margin: var(--sp-7) 0;
    position: relative;
}

.post-body pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.875rem;
    color: var(--text);
    border-radius: 0;
}

/* Syntax highlighting (Pygments default → override for dark theme) */
.highlight { background: var(--bg-3) !important; }
.highlight .c,  .highlight .c1 { color: #555; }   /* comments */
.highlight .k,  .highlight .kd { color: #cf8e6d; } /* keywords */
.highlight .s,  .highlight .s1, .highlight .s2 { color: #6aab73; } /* strings */
.highlight .mi, .highlight .mf { color: #2aacb8; } /* numbers */
.highlight .nf, .highlight .nc { color: #56a8f5; } /* functions */
.highlight .n               { color: var(--text); }
.highlight .o               { color: var(--text-3); }

/* Blockquote */
.post-body blockquote {
    border-left: 3px solid var(--accent);
    margin: var(--sp-7) 0;
    padding: var(--sp-3) 0 var(--sp-3) var(--sp-4);
    background: var(--bg-3);
    border-radius: 0 8px 8px 0;
}

.post-body blockquote p { margin: 0; color: var(--text); font-style: italic; }

/* Tables */
.post-body table {
    width: auto;
    min-width: min(100%, 480px);
    border-collapse: collapse;
    margin: var(--sp-7) auto;
    font-size: 0.9rem;
}

.post-body th,
.post-body td {
    padding: 0.65rem var(--sp-4);
    border: 1px solid var(--border);
    text-align: left;
}

.post-body th {
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-3);
    background: var(--bg-3);
}

.post-body tr:hover td { background: var(--bg-3); }

/* Lists */
.post-body ul,
.post-body ol {
    padding-left: var(--sp-6);
    margin: 0 0 var(--sp-5);
}

.post-body li { margin-bottom: 0.35rem; }

.post-body ul li::marker { color: var(--accent); }
.post-body ol li::marker { color: var(--accent); font-family: var(--mono); font-size: 0.85em; }

/* Inline image captions — markdown outputs <p><img><em>caption</em></p> */
.post-body p:has(img) {
    text-align: center;
    margin: var(--sp-8) 0;
}

.post-body p:has(img) em {
    display: block;
    font-family: var(--mono);
    font-size: 0.85rem;
    font-style: normal;
    font-weight: bolder;
    color: var(--accent);
    letter-spacing: 0.06em;
    margin-top: 0.65rem;
}

/* Figures & images */
.post-body figure {
    margin: var(--sp-8) 0;
    text-align: center;
}

.post-body figure img,
.post-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--border);
    display: block;
    margin: 0 auto;
}

.post-body figcaption {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--text-3);
    letter-spacing: 0.06em;
    margin-top: 0.65rem;
    text-align: center;
}

/* Horizontal rule */
.post-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: var(--sp-10) 0;
}

/* Footnotes */
.post-body .footnote {
    font-size: 0.82rem;
    border-top: 1px solid var(--border);
    margin-top: var(--sp-12);
    padding-top: var(--sp-5);
    color: var(--text-3);
}

/* ── 7. Post Footer Nav ─────────────────────────────────────────────────── */

.post-footer-nav {
    padding: var(--sp-8) 0 var(--sp-4);
    border-top: 1px solid var(--border);
}

/* ── 8. Responsive ──────────────────────────────────────────────────────── */

@media (max-width: 960px) {
    .post-wrap {
        grid-template-columns: 1fr;
        gap: var(--sp-10);
        padding: 0 var(--sp-4);
    }
    .post-toc { position: static; }
    .blog-grid { grid-template-columns: 1fr; }
    .post-header { padding: calc(var(--nav-h) + 1.5rem) 0 2rem; }
    .post-title { font-size: 2rem; }
    .post-layout { padding: var(--sp-10) 0 var(--sp-8); }
}

@media (max-width: 600px) {
    .post-body pre { padding: var(--sp-4); }
    .post-body th, .post-body td { padding: var(--sp-2) 0.65rem; }
}

/* Large screens — rem restatement of this file's px layout (see redesign.css). */
@media (min-width: 1708px) {
    .post-title { max-width: 51.25rem; }
    .post-subtitle { max-width: 38.75rem; }
    .post-wrap { grid-template-columns: 13.75rem 1fr; }
    .post-wrap:has(.post-body:only-child) { max-width: 46.25rem; }
    .post-body table { min-width: min(100%, 30rem); }
}