/* ════════════════════════════════════════════════════════════════════
   VERIFYCO — blog.css
   Dark forensic identity (espresso + bronze) · self-contained.
   Dark is default; [data-theme="light"] provides an optional light mode.
   ════════════════════════════════════════════════════════════════════ */

:root, [data-theme="dark"] {
  --bg: #0B0908;
  --bg-2: #100C09;
  --elev: #15110B;
  --elev-2: #1A140C;
  --line: rgba(214, 172, 134, 0.14);
  --line-2: rgba(214, 172, 134, 0.28);

  --text: #ECE4DA;
  --prose: #D9CFC2;
  --dim: #A89C8D;
  --faint: #6E6558;

  --bronze: #BC8E64;
  --bronze-2: #D6AC86;
  --cream: #F2DDC2;
  --hl-grad: linear-gradient(118deg, #F6E3C8 8%, #D6AC86 55%, #B07F52 100%);

  --code-bg: rgba(214, 172, 134, 0.09);
  --code-line: rgba(214, 172, 134, 0.16);
  --nav-bg: rgba(11, 9, 8, 0.72);
  --shadow: 0 30px 60px -22px rgba(0, 0, 0, 0.8);
}

[data-theme="light"] {
  --bg: #FBF6EE;
  --bg-2: #FFFFFF;
  --elev: #FFFFFF;
  --elev-2: #FBF4EA;
  --line: rgba(120, 86, 52, 0.18);
  --line-2: rgba(120, 86, 52, 0.34);

  --text: #221A11;
  --prose: #34291D;
  --dim: #5C5044;
  --faint: #8B7E6E;

  --bronze: #9A6B3C;
  --bronze-2: #855426;
  --cream: #3A2A18;
  --hl-grad: linear-gradient(118deg, #9A6B3C 8%, #855426 60%, #6E4423 100%);

  --code-bg: rgba(120, 86, 52, 0.08);
  --code-line: rgba(120, 86, 52, 0.18);
  --nav-bg: rgba(251, 246, 238, 0.78);
  --shadow: 0 30px 60px -26px rgba(80, 56, 30, 0.28);
}

:root {
  --f-sans: "Geist", -apple-system, "Segoe UI", sans-serif;
  --f-serif: "Instrument Serif", Georgia, serif;
  --f-mono: "JetBrains Mono", "SF Mono", monospace;
  --nav-h: 70px;
  --measure: 70ch;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Reset ────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background 300ms ease, color 300ms ease;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
ul, ol { margin: 0; }
::selection { background: rgba(188, 142, 100, 0.32); color: var(--cream); }
:focus-visible { outline: 2px solid var(--bronze-2); outline-offset: 3px; border-radius: 4px; }

.bwrap { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }
@media (max-width: 600px) { .bwrap { width: calc(100% - 36px); } }

.mono-note {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--bronze-2);
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--bronze); }
.hl { background: var(--hl-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 46px;
  padding: 0 22px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: transform 220ms var(--ease), box-shadow 220ms ease, border-color 220ms ease, background 220ms ease;
}
.btn-sm { height: 38px; padding: 0 16px; font-size: 13.5px; border-radius: 10px; }
.btn-fill {
  background: linear-gradient(160deg, #F2DDC2 0%, #D6AC86 100%);
  color: #1A120A;
  box-shadow: 0 14px 32px -14px rgba(214, 172, 134, 0.5);
}
.btn-fill:hover { transform: translateY(-2px); box-shadow: 0 22px 42px -16px rgba(214, 172, 134, 0.62); }
.btn-fill .btn-ico { display: inline-flex; }
.btn-fill .btn-ico svg { width: 17px; height: 17px; }
.btn-line {
  border: 1px solid var(--line-2);
  color: var(--text);
  background: transparent;
}
.btn-line:hover { border-color: var(--bronze-2); background: var(--code-bg); }

.chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}
.chip:hover { border-color: var(--bronze-2); color: var(--text); }
.chip.is-on { border-color: var(--bronze-2); color: #1A120A; background: linear-gradient(120deg, #F2DDC2, #D6AC86); }
[data-theme="light"] .chip.is-on { color: #FFF6EA; background: linear-gradient(120deg, #9A6B3C, #855426); }

/* ── Brand wordmark ───────────────────────────────────────────────── */
.brand {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1;
  display: inline-flex;
}
.brand em { font-family: var(--f-serif); font-style: italic; font-weight: 400; color: var(--bronze-2); }

/* ── Nav ──────────────────────────────────────────────────────────── */
.bnav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 500;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background 320ms ease, border-color 320ms ease, backdrop-filter 320ms ease;
}
.bnav.is-solid {
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  backdrop-filter: blur(18px) saturate(1.3);
  border-bottom-color: var(--line);
}
.bnav-in { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.bnav-links { display: flex; align-items: center; gap: 30px; }
.bnav-links a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--dim);
  position: relative;
  padding: 6px 0;
  transition: color 200ms ease;
}
.bnav-links a:hover, .bnav-links a.is-here { color: var(--text); }
.bnav-links a.is-here::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px; background: var(--bronze-2);
}
.bnav-right { display: flex; align-items: center; gap: 12px; }
.icon-btn {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--dim);
  transition: color 200ms ease, border-color 200ms ease;
}
.icon-btn:hover { color: var(--text); border-color: var(--line-2); }
.icon-btn svg { width: 17px; height: 17px; }
.icon-btn .t-light { display: none; }
[data-theme="light"] .icon-btn .t-dark { display: none; }
[data-theme="light"] .icon-btn .t-light { display: block; }

.bburger {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  position: relative;
  z-index: 620;
}
.bburger span { position: absolute; left: 11px; right: 11px; height: 1.6px; background: var(--text); transition: transform 300ms var(--ease), opacity 200ms ease, top 300ms var(--ease); }
.bburger span:nth-child(1) { top: 14px; }
.bburger span:nth-child(2) { top: 19px; }
.bburger span:nth-child(3) { top: 24px; }
body.bmenu-open .bburger span:nth-child(1) { top: 19px; transform: rotate(45deg); }
body.bmenu-open .bburger span:nth-child(2) { opacity: 0; }
body.bmenu-open .bburger span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

.bmenu {
  position: fixed; inset: 0;
  z-index: 600;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 22px;
  padding: 90px 32px 40px;
  opacity: 0; visibility: hidden;
  transition: opacity 320ms ease, visibility 320ms ease;
}
body.bmenu-open .bmenu { opacity: 1; visibility: visible; }
.bmenu nav { display: grid; gap: 6px; }
.bmenu nav a {
  font-size: clamp(28px, 7vw, 36px);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.bmenu .btn { margin-top: 16px; }

/* ── Main ─────────────────────────────────────────────────────────── */
.bmain { padding-top: var(--nav-h); min-height: 70vh; }
.measure { width: min(var(--measure), calc(100% - 44px)); margin-inline: auto; }

/* ── Blog hero (listing) ──────────────────────────────────────────── */
.blog-hero { padding: clamp(48px, 8vw, 92px) 0 clamp(30px, 4vw, 46px); display: grid; gap: 20px; max-width: 820px; }
.blog-hero h1 { font-size: clamp(34px, 5.4vw, 60px); font-weight: 600; letter-spacing: -0.035em; line-height: 1.05; }
.blog-hero .lead { font-size: clamp(16px, 1.9vw, 19px); color: var(--dim); line-height: 1.65; max-width: 60ch; }
.tag-filter { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }

/* ── Post grid / cards ────────────────────────────────────────────── */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: clamp(20px, 2.6vw, 30px);
  padding-bottom: clamp(60px, 8vw, 100px);
}
.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: var(--elev);
  transition: transform 280ms var(--ease), border-color 280ms ease, box-shadow 280ms ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-2); box-shadow: var(--shadow); }
.card-media { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--elev-2); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 600ms var(--ease); }
.card:hover .card-media img { transform: scale(1.04); }
.card-body { display: flex; flex-direction: column; gap: 12px; padding: 22px 22px 24px; flex: 1; }
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.card-title { font-size: 20px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; }
.card-title a { transition: color 200ms ease; }
.card-title a:hover { color: var(--bronze-2); }
.card-excerpt { font-size: 14.5px; color: var(--dim); line-height: 1.6; flex: 1; }
.card-meta { display: flex; align-items: center; gap: 8px; font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.06em; color: var(--faint); }
.card-meta .dot { opacity: 0.6; }

/* ── Post header ──────────────────────────────────────────────────── */
.post-head { padding: clamp(34px, 6vw, 64px) 0 clamp(22px, 3vw, 30px); display: grid; gap: 18px; }
.crumbs { display: flex; align-items: center; gap: 8px; font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); }
.crumbs a { color: var(--dim); transition: color 180ms ease; }
.crumbs a:hover { color: var(--bronze-2); }
.crumbs .sep { opacity: 0.5; }
.post-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.post-title { font-size: clamp(30px, 5vw, 52px); font-weight: 600; letter-spacing: -0.035em; line-height: 1.08; }
.post-dek { font-size: clamp(17px, 2vw, 21px); color: var(--dim); line-height: 1.55; max-width: 62ch; }
.post-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.04em; color: var(--faint); padding-top: 6px; border-top: 1px dashed var(--line-2); }
.post-meta .byline { color: var(--bronze-2); }
.post-meta .dot { opacity: 0.5; }

.post-hero { width: min(880px, calc(100% - 44px)); margin: clamp(20px, 3vw, 34px) auto clamp(30px, 4vw, 48px); }
.post-hero img { width: 100%; border-radius: 18px; border: 1px solid var(--line); aspect-ratio: 16 / 9; object-fit: cover; }

/* ── Prose ────────────────────────────────────────────────────────── */
.prose { color: var(--prose); font-size: 18px; line-height: 1.78; }
.prose > * + * { margin-top: 1.35em; }
.prose h2 { color: var(--text); font-size: clamp(24px, 3vw, 32px); font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; margin-top: 2em; scroll-margin-top: 90px; }
.prose h3 { color: var(--text); font-size: clamp(20px, 2.4vw, 24px); font-weight: 600; letter-spacing: -0.015em; margin-top: 1.7em; scroll-margin-top: 90px; }
.prose h2 + p, .prose h3 + p { margin-top: 0.7em; }
.prose a { color: var(--bronze-2); text-decoration: underline; text-decoration-color: var(--line-2); text-underline-offset: 3px; transition: text-decoration-color 200ms ease, color 200ms ease; }
.prose a:hover { text-decoration-color: var(--bronze-2); }
.prose strong { color: var(--text); font-weight: 600; }
.prose em { font-style: italic; }
.prose ul, .prose ol { padding-left: 1.3em; display: grid; gap: 0.5em; }
.prose li { padding-left: 0.2em; }
.prose li::marker { color: var(--bronze); }
.prose blockquote {
  margin-inline: 0;
  padding: 4px 0 4px 24px;
  border-left: 2px dashed var(--bronze);
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 1.32em;
  line-height: 1.45;
  color: var(--text);
}
.prose code {
  font-family: var(--f-mono);
  font-size: 0.86em;
  background: var(--code-bg);
  border: 1px solid var(--code-line);
  border-radius: 6px;
  padding: 0.12em 0.4em;
  color: var(--bronze-2);
}
.prose pre {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 22px;
  overflow-x: auto;
  font-family: var(--f-mono);
  font-size: 14px;
  line-height: 1.6;
}
.prose pre code { background: none; border: 0; padding: 0; color: var(--prose); font-size: inherit; }
.prose img { border-radius: 14px; border: 1px solid var(--line); margin-inline: auto; }
.prose hr { border: 0; border-top: 1px dashed var(--line-2); margin: 2.4em 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; }
.prose th, .prose td { padding: 10px 14px; border: 1px solid var(--line); text-align: left; }
.prose th { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--bronze-2); background: var(--code-bg); }

/* ── CTA ──────────────────────────────────────────────────────────── */
.cta {
  margin-top: 3em;
  display: flex;
  gap: 22px;
  align-items: center;
  padding: clamp(24px, 3vw, 32px);
  border: 1px solid var(--line-2);
  border-radius: 20px;
  background:
    radial-gradient(ellipse 70% 120% at 88% 50%, rgba(188, 142, 100, 0.12) 0%, transparent 65%),
    var(--elev);
}
.cta-icon { width: 72px; height: 72px; border-radius: 22%; flex: none; box-shadow: 0 18px 40px -16px rgba(188, 142, 100, 0.5); }
.cta-body { display: grid; gap: 12px; }
.cta-title { font-size: clamp(20px, 2.4vw, 26px); font-weight: 600; letter-spacing: -0.02em; color: var(--text); }
.cta-text { font-size: 15px; color: var(--dim); line-height: 1.6; }
.cta .btn { justify-self: start; margin-top: 4px; }

.cta--inline {
  margin-block: 2em;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 22px;
  border-style: dashed;
  background: var(--code-bg);
}
.cta--inline p { font-size: 15px; color: var(--dim); margin: 0; }
.cta--inline strong { color: var(--text); }
.cta-link { font-family: var(--f-mono); font-size: 13px; letter-spacing: 0.06em; color: var(--bronze-2); white-space: nowrap; transition: opacity 200ms ease; }
.cta-link:hover { opacity: 0.8; }

/* ── Related ──────────────────────────────────────────────────────── */
.related { padding: clamp(50px, 7vw, 84px) 0 clamp(60px, 8vw, 100px); border-top: 1px solid var(--line); margin-top: clamp(50px, 7vw, 84px); }
.related-h { font-size: clamp(22px, 3vw, 30px); font-weight: 600; letter-spacing: -0.025em; margin-bottom: clamp(22px, 3vw, 34px); }

/* ── Footer ───────────────────────────────────────────────────────── */
.bfoot { border-top: 1px solid var(--line); background: var(--bg-2); }
.bfoot-in { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; padding: clamp(44px, 6vw, 68px) 0 40px; }
.bfoot-brand p { margin-top: 14px; font-size: 14px; color: var(--faint); max-width: 34ch; line-height: 1.6; }
.bfoot-brand .mono-note { margin-top: 14px; }
.bfoot-col h4 { font-family: var(--f-mono); font-size: 10.5px; font-weight: 500; letter-spacing: 0.24em; text-transform: uppercase; color: var(--faint); margin-bottom: 16px; }
.bfoot-col ul { list-style: none; padding: 0; display: grid; gap: 10px; }
.bfoot-col a { font-size: 14.5px; color: var(--dim); transition: color 180ms ease; }
.bfoot-col a:hover { color: var(--text); }
.bfoot-bot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 20px 0 30px; border-top: 1px solid var(--line); font-family: var(--f-mono); font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); }

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 880px) {
  .bnav-links { display: none; }
  .bnav-right .btn-sm { display: none; }
  .bburger { display: block; }
  .bfoot-in { grid-template-columns: 1fr 1fr; gap: 30px; }
  .bfoot-brand { grid-column: 1 / -1; }
}
@media (max-width: 540px) {
  .cta { flex-direction: column; align-items: flex-start; text-align: left; }
  .cta--inline { flex-direction: column; align-items: flex-start; }
  .post-grid { grid-template-columns: 1fr; }
}

/* ── Reduced motion ───────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .card, .card-media img, .btn { transition: none; }
}