/* Self-hosted fonts — match the SPA so the blog feels like one site. */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("/fonts/inter-var-latin.woff2") format("woff2-variations"),
       url("/fonts/inter-var-latin.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("/fonts/jetbrains-mono-var-latin.woff2") format("woff2-variations"),
       url("/fonts/jetbrains-mono-var-latin.woff2") format("woff2");
}
@font-face {
  font-family: "General Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/general-sans-400.woff2") format("woff2");
}
@font-face {
  font-family: "General Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/general-sans-500.woff2") format("woff2");
}
@font-face {
  font-family: "General Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/general-sans-600.woff2") format("woff2");
}
@font-face {
  font-family: "General Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/fonts/general-sans-700.woff2") format("woff2");
}

:root {
  --bg: hsl(260 87% 3%);
  --bg2: hsl(260 60% 5%);
  --bg-elev: hsl(260 45% 7%);
  --fg: hsl(40 6% 96%);
  --fg2: hsl(40 6% 80%);
  --fg3: hsl(40 6% 65%);
  --fg4: hsl(40 6% 50%);
  --accent: #00e59b;
  --accent-dark: #00b57b;
  --blue: #6366f1;
  --purple: #a855f7;
  --amber: #fcd34d;
  --border: hsla(40 6% 95% / 0.1);
  --border2: hsla(40 6% 95% / 0.18);
  --card: hsla(260 40% 8% / 0.6);
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "General Sans", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background-image:
    radial-gradient(ellipse 80% 50% at 20% 0%, hsla(160 100% 45% / 0.06), transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 100%, hsla(245 70% 50% / 0.08), transparent 60%);
  background-attachment: fixed;
}

/* ── Header ───────────────────────────────────────── */
.bn {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(10, 5, 20, 0.72);
  backdrop-filter: blur(22px) saturate(1.4);
  -webkit-backdrop-filter: blur(22px) saturate(1.4);
  border-bottom: 1px solid hsla(260 60% 50% / 0.18);
}
.bn-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.bn-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--fg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.bn-logo .mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  box-shadow: 0 6px 16px rgba(0, 229, 155, 0.3);
  display: grid;
  place-items: center;
}
.bn-logo .mark svg { width: 14px; height: 14px; }
.bn-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.bn-link {
  padding: 8px 12px;
  text-decoration: none;
  color: var(--fg3);
  font-size: 14px;
  font-weight: 500;
  border-radius: 999px;
  transition: color 0.15s, background 0.15s;
}
.bn-link:hover { color: var(--fg); background: rgba(255, 255, 255, 0.04); }
.bn-link.is-active { color: var(--fg); background: rgba(255, 255, 255, 0.06); }
.bn-cta {
  margin-left: 6px;
  padding: 9px 16px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #001f15;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 8px 20px rgba(0, 229, 155, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  transition: transform 0.15s, box-shadow 0.15s;
}
.bn-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(0, 229, 155, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.45);
}
.bn-lang {
  margin-left: 4px;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--fg3);
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  text-transform: uppercase;
}
.bn-lang:hover { color: var(--fg); background: rgba(255, 255, 255, 0.06); }

@media (max-width: 720px) {
  .bn-links { display: none; }
}

/* ── Article hero ─────────────────────────────────── */
.bh {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px 32px;
}
.bh-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: hsla(160 100% 45% / 0.12);
  border: 1px solid hsla(160 100% 45% / 0.3);
  border-radius: 999px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.bh h1 {
  margin: 24px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  font-weight: 700;
  color: var(--fg);
}
.bh h1 .accent { color: var(--accent); }
.bh-lead {
  margin: 0;
  font-size: clamp(1.05rem, 1.6vw, 1.18rem);
  line-height: 1.55;
  color: var(--fg2);
  max-width: 640px;
}
.bh-meta {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg3);
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.bh-meta a { color: var(--fg2); text-decoration: none; }
.bh-meta a:hover { color: var(--accent); }
.bh-meta .dot { color: var(--fg4); }

/* ── Article body ─────────────────────────────────── */
.bb {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}
.bb h2 {
  margin: 56px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.8vw, 1.95rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
  font-weight: 600;
  color: var(--fg);
  scroll-margin-top: 80px;
}
.bb h3 {
  margin: 36px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.18rem, 1.8vw, 1.32rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 600;
  color: var(--fg);
}
.bb p {
  margin: 0 0 22px;
  color: var(--fg2);
}
.bb a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid hsla(160 100% 45% / 0.4);
  transition: color 0.15s, border-color 0.15s;
}
.bb a:hover {
  color: #fff;
  border-bottom-color: var(--accent);
}
.bb strong { color: var(--fg); font-weight: 600; }
.bb em { color: var(--fg); font-style: italic; }
.bb ul, .bb ol {
  margin: 0 0 22px;
  padding-left: 28px;
  color: var(--fg2);
}
.bb li {
  margin-bottom: 8px;
}
.bb li::marker { color: var(--accent); }
.bb blockquote {
  margin: 32px 0;
  padding: 20px 24px;
  background: var(--card);
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
  color: var(--fg);
  font-family: var(--font-display);
  font-size: 1.12rem;
  line-height: 1.5;
  letter-spacing: -0.012em;
  font-style: italic;
}
.bb blockquote p { margin: 0; color: inherit; }
.bb code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 2px 6px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--fg);
}
.bb pre {
  margin: 24px 0;
  padding: 18px 20px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.55;
}
.bb pre code {
  padding: 0;
  background: transparent;
  border: 0;
  font-size: 13px;
}
.bb hr {
  margin: 48px 0;
  border: 0;
  border-top: 1px solid var(--border);
}

/* Callouts */
.bb .callout {
  margin: 28px 0;
  padding: 18px 22px;
  border-radius: 14px;
  background: linear-gradient(165deg, hsla(260 35% 14% / 0.6), hsla(260 30% 9% / 0.42));
  border: 1px solid hsla(260 60% 50% / 0.18);
}
.bb .callout strong { color: var(--accent); }
.bb .callout p:last-child { margin-bottom: 0; }

/* Inline stat row */
.bb .stat-row {
  margin: 32px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  padding: 24px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--border);
}
.bb .stat-row .stat .v {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}
.bb .stat-row .stat .l {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg3);
}

/* ── Bottom CTA ───────────────────────────────────── */
.bc {
  max-width: 720px;
  margin: 32px auto 64px;
  padding: 36px 28px;
  border-radius: 24px;
  background: linear-gradient(165deg, hsla(160 100% 45% / 0.09), hsla(245 70% 50% / 0.08));
  border: 1px solid hsla(160 100% 45% / 0.28);
  text-align: center;
}
.bc h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 1.6rem;
  line-height: 1.2;
  letter-spacing: -0.025em;
  font-weight: 700;
  color: var(--fg);
}
.bc p {
  margin: 0 0 22px;
  color: var(--fg2);
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}
.bc-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.bc-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #001f15;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  border-radius: 999px;
  box-shadow: 0 12px 28px rgba(0, 229, 155, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  transition: transform 0.15s, box-shadow 0.15s;
}
.bc-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 36px rgba(0, 229, 155, 0.45);
}
.bc-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--fg);
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  border-radius: 999px;
  border: 1px solid var(--border2);
}
.bc-secondary:hover { background: rgba(255, 255, 255, 0.08); }

/* ── Related posts ────────────────────────────────── */
.rel {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 24px 80px;
}
.rel h3 {
  margin: 0 0 24px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: -0.025em;
  font-weight: 600;
  color: var(--fg);
}
.rel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.rel-card {
  display: block;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  text-decoration: none;
  color: var(--fg);
  transition: border-color 0.2s, transform 0.2s;
}
.rel-card:hover {
  border-color: hsla(160 100% 45% / 0.4);
  transform: translateY(-2px);
}
.rel-card .cat {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.rel-card .title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--fg);
}

/* ── Hub / index page ─────────────────────────────── */
.hub {
  max-width: 1180px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}
.hub-head {
  max-width: 760px;
  margin: 0 0 48px;
}
.hub-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: hsla(160 100% 45% / 0.12);
  border: 1px solid hsla(160 100% 45% / 0.3);
  border-radius: 999px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hub-head h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 700;
}
.hub-head h1 .accent { color: var(--accent); }
.hub-head p {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.55;
  color: var(--fg2);
}
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.hub-card {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  text-decoration: none;
  color: var(--fg);
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  min-height: 260px;
}
.hub-card:hover {
  border-color: hsla(160 100% 45% / 0.4);
  transform: translateY(-3px);
  box-shadow: 0 24px 60px hsla(260 50% 5% / 0.5), 0 0 60px hsla(160 100% 45% / 0.08);
}
.hub-card .cat {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.hub-card .title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin: 0 0 12px;
}
.hub-card .desc {
  font-size: 0.96rem;
  line-height: 1.5;
  color: var(--fg2);
  margin: 0 0 20px;
  flex: 1;
}
.hub-card .read {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg3);
}
.hub-card:hover .read { color: var(--accent); }

/* ── Footer ───────────────────────────────────────── */
.bf {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--fg3);
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}
.bf a { color: var(--fg2); text-decoration: none; }
.bf a:hover { color: var(--accent); }

/* ── Reduced motion ───────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}