:root {
  --bg: #0a0a0a;
  --bg-2: #121212;
  --ink: #f4f4f4;
  --ink-2: #b3b3b3;
  --muted: #7a7a7a;
  --line: #262626;
  --card: #141414;
  --accent: #c0c4ca;
  --silver-grad: linear-gradient(135deg, #f2f3f5 0%, #a9adb4 45%, #e6e8eb 70%, #8d9198 100%);
  --on-light: #0a0a0a;
  --radius: 18px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; color-scheme: dark; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { background: var(--bg); color: var(--ink); font: 17px/1.7 Inter, system-ui, sans-serif; -webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: transparent; overflow-x: hidden; }
h1, h2, h3 { font-family: "Bricolage Grotesque", Inter, sans-serif; line-height: 1.12; letter-spacing: -.02em; }
a { color: inherit; }
::selection { background: var(--accent); color: var(--on-light); }
.wrap { width: min(1160px, 100% - 32px - env(safe-area-inset-left) - env(safe-area-inset-right)); margin-inline: auto; }
.narrow { width: min(760px, 100% - 32px - env(safe-area-inset-left) - env(safe-area-inset-right)); margin-inline: auto; }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 22px; border-radius: 999px; font: 600 15px Inter, sans-serif; text-decoration: none; white-space: nowrap; border: 1.5px solid transparent; transition: background .15s, transform .15s; }
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); }
.btn-dark { background: var(--on-light); color: #fff; }
.btn-dark:hover { background: #2a2a2a; }

/* Nav */
nav.top { position: sticky; top: 0; z-index: 50; background: rgba(10,10,10,.88); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); padding-top: env(safe-area-inset-top); border-bottom: 1px solid var(--line); }
nav.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 12px; }
.logo { display: flex; align-items: center; gap: 8px; font-family: "Bricolage Grotesque"; font-size: 22px; text-decoration: none; }
.logo-mark { width: 34px; height: 34px; filter: drop-shadow(0 2px 8px rgba(192,196,202,.25)); }
.wordmark { font-weight: 800; letter-spacing: -.03em; }
.wordmark b { font-weight: 500; color: var(--accent); }
.nav-links { display: flex; gap: 28px; font-size: 15px; color: var(--ink-2); }
.nav-links a { text-decoration: none; }
.nav-links a:hover, .nav-links a[aria-current] { color: var(--ink); }
.nav-cta .btn { padding: 10px 18px; font-size: 14px; }

/* Breadcrumb */
.crumbs { font-size: 14px; color: var(--muted); padding: 28px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { text-decoration: none; color: var(--ink-2); }
.crumbs a:hover { color: var(--ink); }

/* Blog index */
.blog-hero { padding: 48px 0 32px; background: radial-gradient(ellipse 60% 80% at 80% 0%, rgba(192,196,202,.10), transparent 70%); }
.blog-hero h1 { font-size: clamp(38px, 6vw, 64px); margin: 14px 0 16px; max-width: 820px; }
.blog-hero p { font-size: 19px; color: var(--ink-2); max-width: 640px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 32px 0 8px; }
.filters button { border: 1px solid var(--line); background: transparent; color: var(--ink); border-radius: 99px; padding: 9px 16px; font: 500 14px Inter, sans-serif; cursor: pointer; }
.filters button.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; padding: 28px 0 96px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; text-decoration: none; display: flex; flex-direction: column; transition: border-color .2s, transform .2s; }
.card:hover { border-color: #4a4a4a; transform: translateY(-2px); }
.card[hidden] { display: none; }
.cover { aspect-ratio: 16 / 8; position: relative; overflow: hidden; display: flex; align-items: flex-end; padding: 18px; background:
  radial-gradient(circle at 85% 20%, rgba(255,255,255,.14), transparent 45%),
  repeating-linear-gradient(135deg, rgba(255,255,255,.035) 0 2px, transparent 2px 14px),
  linear-gradient(160deg, #1d1e20, #0c0c0d); }
.cover span { font-family: "Bricolage Grotesque"; font-weight: 800; font-size: 30px; letter-spacing: -.03em; background: linear-gradient(180deg, #fff, #8d9198); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent; }
.cover svg { position: absolute; right: 18px; top: 16px; width: 34px; height: 34px; opacity: .9; }
.card-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-body h2 { font-size: 21px; }
.card-body p { color: var(--ink-2); font-size: 15px; line-height: 1.6; }
.card-meta { margin-top: auto; font-size: 13px; color: var(--muted); padding-top: 6px; }
.tag { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }

/* Article */
.post-head { padding: 20px 0 8px; }
.post-head h1 { font-size: clamp(34px, 5.2vw, 54px); margin: 14px 0 18px; }
.post-meta { color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; gap: 6px 16px; }
.lead { font-size: 20px; color: var(--ink-2); margin: 28px 0 8px; line-height: 1.6; }
.toc { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px; margin: 32px 0; }
.toc b { font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.toc ol { margin: 10px 0 0 20px; display: grid; gap: 6px; font-size: 15.5px; }
.toc a { color: var(--ink-2); text-decoration: none; }
.toc a:hover { color: var(--ink); }
.prose h2 { font-size: clamp(26px, 3.4vw, 32px); margin: 48px 0 14px; }
.prose h3 { font-size: 21px; margin: 30px 0 10px; }
.prose p { margin: 0 0 18px; color: #d6d6d6; }
.prose ul, .prose ol { margin: 0 0 20px 22px; color: #d6d6d6; display: grid; gap: 8px; }
.prose strong { color: #fff; }
.prose a { color: #fff; text-decoration: underline; text-decoration-color: #6a6a6a; text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: #fff; }
.prose blockquote { border-left: 3px solid var(--accent); padding: 4px 0 4px 18px; margin: 0 0 20px; color: var(--ink-2); font-style: italic; }
.prose .note { background: #151617; border: 1px solid #2f3033; border-radius: 14px; padding: 16px 18px; margin: 0 0 22px; font-size: 15.5px; color: var(--ink-2); }
.prose .note strong { color: var(--ink); }
.prose .tpl { background: #0f1a14; border: 1px solid #1f3a2c; border-radius: 14px; padding: 16px 18px; margin: 0 0 22px; font-size: 15.5px; white-space: pre-line; color: #d9fdd3; font-family: ui-monospace, Menlo, monospace; }
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 22px; font-size: 15px; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { color: var(--accent); font-weight: 600; white-space: nowrap; }
.sources { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 14.5px; color: var(--muted); }
.sources h2 { font-size: 18px; margin: 0 0 10px; color: var(--ink-2); }
.sources ol { margin-left: 20px; display: grid; gap: 6px; }
.sources a { color: var(--ink-2); word-break: break-word; }
.disclaimer { margin-top: 18px; font-size: 13.5px; color: var(--muted); }

.cta-box { background: var(--silver-grad); color: var(--on-light); border-radius: 24px; padding: 40px 32px; margin: 56px 0 0; text-align: center; }
.cta-box h2 { font-size: clamp(26px, 3.6vw, 34px); margin-bottom: 10px; }
.cta-box p { margin: 0 auto 22px; max-width: 520px; color: #2a2a2a; }

.related { padding: 72px 0 96px; }
.related h2 { font-size: 28px; margin-bottom: 8px; }
.related .grid { padding: 20px 0 0; }

footer { border-top: 1px solid var(--line); padding: 40px 0 calc(40px + env(safe-area-inset-bottom)); font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
footer .links { display: flex; gap: 22px; }
footer a { text-decoration: none; }
footer a:hover { color: var(--ink); }

@media (max-width: 960px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav-links { gap: 18px; }
  .nav-links .hide-md { display: none; }
}
@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .grid { grid-template-columns: minmax(0, 1fr); }
  .nav-links { display: none; }
  .lead { font-size: 18px; }
  .filters { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-right: -16px; padding-right: 16px; }
  .filters::-webkit-scrollbar { display: none; }
  .filters button { flex-shrink: 0; }
  .cta-box { padding: 32px 20px; }
  footer .wrap { flex-direction: column; text-align: center; }
  footer .links a { padding: 10px 4px; }
}
@media (max-width: 380px) {
  .logo { font-size: 19px; }
  .logo-mark { width: 28px; height: 28px; }
  .nav-cta .btn { padding: 10px 14px; font-size: 13px; }
}