/* ============================================================
   Blog — index + article styles
   Variables map to the site-wide tokens in variables.css
   ============================================================ */

/* ── Blog index hero ──────────────────────────────────────── */
.section-tag {
  display: inline-flex;
  align-items: center;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--color-cyan);
  border: 1px solid rgba(56,189,248,.2);
  background: rgba(56,189,248,.08);
  border-radius: 5px;
  padding: 4px 11px;
  margin-bottom: 12px;
}
.blog-hero {
  padding: 72px 3.25rem 56px;
  border-bottom: 1px solid var(--color-border);
}
.blog-hero__inner {
  max-width: var(--container-xl);
  margin: 0 auto;
}
.blog-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--color-cyan);
  border: 1px solid rgba(56,189,248,.25);
  background: rgba(56,189,248,.08);
  border-radius: 5px;
  padding: 5px 12px;
  margin-bottom: 20px;
}
.blog-hero__h {
  font-size: clamp(2rem, 2.8vw, 3rem);
  font-weight: 900;
  letter-spacing: -.048em;
  line-height: 1.08;
  color: var(--color-text);
  margin-bottom: 14px;
}
.blog-hero__p {
  font-size: 16px;
  color: var(--color-text-2);
  line-height: 1.7;
  max-width: 520px;
}

/* ── Category filter tabs ─────────────────────────────────── */
.cat-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.cat-tab {
  font-size: 12.5px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--color-border-2);
  color: var(--color-text-2);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.cat-tab:hover,
.cat-tab--active {
  border-color: rgba(56,189,248,.3);
  color: var(--color-cyan);
  background: rgba(56,189,248,.07);
}

/* ── Featured post ────────────────────────────────────────── */
.blog-section {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: var(--space-16) 3.25rem;
}
.feat-post {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 40px;
}
.feat-post__img {
  background: linear-gradient(135deg, var(--color-surface-2) 0%, var(--color-surface-3) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}
.feat-post__img-inner {
  text-align: center;
}
.feat-post__icon {
  font-size: 52px;
  display: block;
  margin-bottom: 12px;
}
.feat-post__img-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-text-3);
}
.feat-post__content {
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.feat-post__h {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -.04em;
  line-height: 1.2;
  margin-bottom: 12px;
  text-decoration: none;
  display: block;
}
.feat-post__h:hover { color: var(--color-cyan); }
.feat-post__p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-bottom: 24px;
}
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-cyan);
  margin-top: 20px;
  text-decoration: none;
}
.read-more:hover { color: #7dd3fc; }

/* ── Post meta (avatar + name + date + read) ─────────────── */
.post-cat-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-cyan);
  background: rgba(56,189,248,.1);
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 14px;
}
.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: var(--color-text-3);
  flex-wrap: wrap;
}
.post-av {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  color: #0a0f1e;
  flex-shrink: 0;
}
.post-meta-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-3);
  display: inline-block;
}

/* ── Blog grid ────────────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: 13px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-fast);
}
.blog-card:hover { border-color: rgba(56,189,248,.22); }
.blog-card__img {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-surface-2) 0%, var(--color-surface-3) 100%);
  font-size: 36px;
}
.blog-card__body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.blog-card__h {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -.02em;
  line-height: 1.35;
  text-decoration: none;
  display: block;
}
.blog-card__h:hover { color: var(--color-cyan); }
.blog-card__p {
  font-size: 13px;
  color: var(--color-text-2);
  line-height: 1.65;
  flex: 1;
}
.blog-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-top: 1px solid var(--color-border);
}
.blog-card__date { font-size: 12px; color: var(--color-text-3); }
.read-link {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--color-cyan);
  text-decoration: none;
}
.read-link:hover { color: #7dd3fc; }

/* ── Newsletter strip ─────────────────────────────────────── */
.newsletter {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-2);
  border-radius: 14px;
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin-top: 48px;
}
.newsletter__h {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -.03em;
  margin-bottom: 6px;
}
.newsletter__p { font-size: 14px; color: var(--color-text-2); }
.newsletter__form { display: flex; gap: 10px; flex-shrink: 0; }
.nl-input {
  font-size: 14px;
  padding: 11px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: 8px;
  color: var(--color-text);
  width: 260px;
  outline: none;
  transition: border-color var(--transition-fast);
}
.nl-input:focus { border-color: var(--color-cyan); }
.nl-input::placeholder { color: var(--color-text-3); }

/* ── Article hero ─────────────────────────────────────────── */
.article-hero {
  border-bottom: 1px solid var(--color-border);
  padding: 72px 3.25rem 0;
}
.article-hero__inner {
  max-width: var(--container-xl);
  margin: 0 auto;
}
.art-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--color-text-3);
  margin-bottom: 20px;
}
.art-breadcrumb a {
  color: var(--color-text-3);
  text-decoration: none;
}
.art-breadcrumb a:hover { color: var(--color-text-2); }
.art-cat {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 14px;
}
.art-cat--guide       { color: var(--color-cyan);   background: rgba(56,189,248,.12); }
.art-cat--compliance  { color: #8b5cf6; background: rgba(139,92,246,.12); }
.art-cat--education   { color: #10b981; background: rgba(16,185,129,.12); }
.art-cat--engineering { color: #f59e0b; background: rgba(245,158,11,.12); }
.art-cat--security    { color: #ef4444; background: rgba(239,68,68,.12); }
.art-cat--enterprise  { color: #64748b; background: rgba(100,116,139,.12); }
.art-h {
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 900;
  letter-spacing: -.048em;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: 18px;
  max-width: 760px;
}
.art-sub {
  font-size: 17px;
  color: var(--color-text-2);
  line-height: 1.7;
  max-width: 660px;
  margin-bottom: 28px;
}
.art-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--color-text-3);
  padding-bottom: 32px;
  flex-wrap: wrap;
}
.art-av {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  color: #0a0f1e;
  flex-shrink: 0;
}
.art-meta-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-3);
  display: inline-block;
}
.art-meta__name  { color: var(--color-text-2); font-weight: 600; }
.art-meta__cat   { font-weight: 600; }

/* ── Article two-column layout ────────────────────────────── */
.article-wrap {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 3.25rem;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 64px;
  align-items: start;
}

/* ── Article body ─────────────────────────────────────────── */
.art-body { padding: 48px 0 80px; }
.art-body h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -.04em;
  margin: 40px 0 14px;
}
.art-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -.02em;
  margin: 28px 0 10px;
}
.art-body p {
  font-size: 15px;
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: 18px;
}
.art-body strong { color: var(--color-text-2); font-weight: 600; }
.art-body ul {
  margin: 0 0 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.art-body li {
  font-size: 15px;
  color: var(--color-text-2);
  line-height: 1.7;
}
.art-body code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  padding: 2px 7px;
  border-radius: 4px;
  color: var(--color-cyan);
}
.art-body a { color: var(--color-cyan); }
.art-body a:hover { color: #7dd3fc; }

/* Callout */
.callout {
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-left: 3px solid var(--color-cyan);
  border-radius: 0 10px 10px 0;
  padding: 20px 24px;
  margin: 28px 0;
}
.callout--violet { border-left-color: #8b5cf6; }
.callout--green  { border-left-color: #10b981; }
.callout-label {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-cyan);
  margin-bottom: 8px;
}
.callout--violet .callout-label { color: #8b5cf6; }
.callout--green  .callout-label { color: #10b981; }
.callout p { margin-bottom: 0; color: var(--color-text-2); }

/* Step card */
.step-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-2);
  border-radius: 12px;
  padding: 24px 28px;
  margin: 20px 0;
}
.step-card__hdr {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.step-num {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: rgba(56,189,248,.1);
  border: 1px solid rgba(56,189,248,.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  color: var(--color-cyan);
  font-family: 'SF Mono', monospace;
  flex-shrink: 0;
}
.step-card__h {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -.02em;
}
.step-card p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-bottom: 10px;
}

/* DNS code block */
.dns-block {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-2);
  border-radius: 10px;
  padding: 18px 22px;
  margin: 16px 0;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
  color: var(--color-text-2);
}
.dns-block__comment { color: var(--color-text-3); font-size: 11px; margin-bottom: 8px; }
.dns-block__key { color: var(--color-cyan); }

/* Summary check list */
.check-list { list-style: none !important; margin-left: 0 !important; }
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  list-style: none;
}
.check-list__icon { color: #10b981; margin-top: 3px; flex-shrink: 0; }

/* Control table (SOC 2 post) */
.ctrl-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}
.ctrl-table th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-text-3);
  padding: 10px 14px;
  text-align: left;
  border-bottom: 2px solid var(--color-border);
}
.ctrl-table td {
  font-size: 13.5px;
  color: var(--color-text-2);
  padding: 13px 14px;
  border-bottom: 1px solid var(--color-border);
}
.ctrl-table tr:last-child td { border-bottom: none; }
.ctrl-table .ctrl-name { font-weight: 600; color: var(--color-text); }
.ctrl-table .covered   { color: #10b981; }
.ctrl-table .partial   { color: #f59e0b; }

/* OWASP cards (BlogPost3) */
.owasp-list { display: flex; flex-direction: column; gap: 16px; margin: 28px 0; }
.owasp-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: 12px;
  padding: 24px 28px;
  transition: border-color var(--transition-fast);
}
.owasp-card:hover { border-color: rgba(16,185,129,.22); }
.owasp-card__hdr {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.owasp-num {
  font-size: 11px;
  font-weight: 800;
  font-family: 'SF Mono', monospace;
  color: var(--color-text-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  padding: 3px 9px;
  border-radius: 5px;
  flex-shrink: 0;
}
.owasp-sev {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 3px 9px;
  border-radius: 4px;
  flex-shrink: 0;
}
.owasp-title { font-size: 15px; font-weight: 700; color: var(--color-text); flex: 1; }
.owasp-p { font-size: 13.5px; color: var(--color-text-2); line-height: 1.7; }
.owasp-example {
  font-size: 12.5px;
  color: var(--color-text-3);
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--color-border);
}
.owasp-example strong { color: var(--color-cyan); }

/* ── Sidebar ──────────────────────────────────────────────── */
.art-sidebar {
  padding: 48px 0 80px;
  position: sticky;
  top: 80px;
}
.sidebar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}
.sidebar-card--cta-cyan   { background: rgba(56,189,248,.06); border-color: rgba(56,189,248,.2); }
.sidebar-card--cta-violet { background: rgba(139,92,246,.06); border-color: rgba(139,92,246,.2); }
.sidebar-card--cta-green  { background: rgba(16,185,129,.06); border-color: rgba(16,185,129,.2); }
.sidebar-h {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-text-3);
  margin-bottom: 16px;
}
.toc-item {
  display: block;
  padding: 7px 0;
  font-size: 13px;
  color: var(--color-text-2);
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.toc-item:last-child { border-bottom: none; }
.toc-item:hover { color: var(--color-cyan); }
.related-post {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}
.related-post:last-child { border-bottom: none; }
.related-icon {
  width: 36px;
  height: 36px;
  border-radius: 7px;
  background: var(--color-surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.related-h {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-text-2);
  line-height: 1.4;
  text-decoration: none;
  display: block;
}
.related-h:hover { color: var(--color-cyan); }
.related-meta { font-size: 11px; color: var(--color-text-3); margin-top: 3px; }
.sidebar-cta__h {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}
.sidebar-cta__p {
  font-size: 13px;
  color: var(--color-text-2);
  margin-bottom: 16px;
  line-height: 1.6;
}
.sidebar-cta .btn {
  width: 100%;
  justify-content: center;
  font-size: 13px;
  padding: 10px 0;
}

/* ── Sticky sidebar uses nav height as offset ─────────────── */
.art-sidebar { top: calc(var(--nav-height) + 16px); }

/* ── Tablet ≤ 1024px ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .feat-post               { grid-template-columns: 1fr; }
  .feat-post__img          { min-height: 200px; }
  .blog-grid               { grid-template-columns: repeat(2, 1fr); }
  .article-wrap            { grid-template-columns: 1fr; gap: 0; padding: 0 var(--space-10); }
  .art-sidebar             { position: static; padding-top: 0; padding-bottom: var(--space-16); }
  .art-body                { padding-bottom: var(--space-10); }
}

/* ── Large mobile ≤ 768px ─────────────────────────────────── */
@media (max-width: 768px) {
  .blog-hero               { padding: 48px var(--space-6) 40px; }
  .blog-section            { padding: var(--space-10) var(--space-6); }
  .article-hero            { padding: 48px var(--space-6) 0; }
  .article-wrap            { padding: 0 var(--space-6); }

  .blog-grid               { grid-template-columns: 1fr; }

  /* Cat tabs — horizontally scrollable strip on mobile */
  .cat-tabs                { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch;
                             padding-bottom: var(--space-2); scrollbar-width: none; gap: var(--space-2); }
  .cat-tabs::-webkit-scrollbar { display: none; }
  .cat-tab                 { flex-shrink: 0; }

  /* Featured post stacks */
  .feat-post__content      { padding: 28px 24px 32px; }
  .feat-post__h            { font-size: 1.3rem; }

  /* Article headings scale down */
  .art-h                   { font-size: clamp(1.6rem, 6vw, 2.4rem); }
  .art-sub                 { font-size: 15px; }
  .art-body h2             { font-size: 1.25rem; margin-top: 32px; }
  .art-body h3             { font-size: 1rem; }
  .art-body p, .art-body li { font-size: 14px; }
  .art-body                { padding: 32px 0 48px; }

  /* Newsletter */
  .newsletter              { flex-direction: column; align-items: flex-start; padding: 28px 24px; }
  .newsletter__form        { flex-direction: column; width: 100%; }
  .nl-input                { width: 100%; }

  /* OWASP card header wraps on small screens */
  .owasp-card__hdr         { flex-wrap: wrap; gap: 8px; }

  /* Sidebar cards full-width */
  .sidebar-card            { margin-bottom: var(--space-4); }
  .sidebar-cta .btn        { padding: 12px 0; }
}

/* ── Small mobile ≤ 480px ─────────────────────────────────── */
@media (max-width: 480px) {
  .blog-hero               { padding: 36px var(--space-4) 32px; }
  .blog-section            { padding: var(--space-8) var(--space-4); }
  .article-hero            { padding: 40px var(--space-4) 0; }
  .article-wrap            { padding: 0 var(--space-4); }

  .blog-hero__h            { font-size: 1.75rem; }
  .blog-hero__p            { font-size: 14px; }
  .art-h                   { font-size: 1.5rem; }
  .art-sub                 { font-size: 14px; }

  .blog-card__body         { padding: 18px; }
  .blog-card__foot         { padding: 12px 18px; }

  .feat-post__content      { padding: 22px 18px 26px; }
  .feat-post__h            { font-size: 1.15rem; }

  .ctrl-table th,
  .ctrl-table td           { padding: 9px 10px; font-size: 12px; }

  .newsletter              { padding: 22px 18px; }
  .newsletter__h           { font-size: 16px; }
}