:root {
  --display: 'Space Grotesk', system-ui, sans-serif;
  --body: 'Geist', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --read: 760px;
  --r-sm: 12px; --r-md: 16px; --r-lg: 20px; --pill: 999px;
}
html[data-theme="dark"] {
  --bg: #110b09;
  --panel: rgba(255,238,222,0.035);
  --panel-2: rgba(255,238,222,0.055);
  --line: rgba(255,238,222,0.09);
  --line-2: rgba(255,238,222,0.15);
  --ink: #f8efe6;
  --ink-dim: #c1ab9c;
  --ink-faint: #8f7d72;
  --accent: #ff5a36;
  --accent-2: #ffc94a;
  --accent-soft: rgba(255,90,54,0.16);
  --grad: linear-gradient(135deg, #ff5a36, #ffc94a);
  --grad-on: #200e05;
  --grad-shadow: rgba(255,90,54,0.5);
  --hero-bg: linear-gradient(150deg, rgba(255,90,54,0.20), rgba(255,201,74,0.06));
  --code-bg: rgba(12,7,5,0.6); --code-ink: #f8efe6;
  --code-k: #ff5a36; --code-s: #ffc94a;
  --aurora-1: rgba(255,90,54,0.30);
  --aurora-2: rgba(255,201,74,0.16);
  --grid-line: rgba(255,238,222,0.022);
  --nav-bg: rgba(13,9,7,0.55);
}
html[data-theme="light"] {
  --bg: #fdf8f3;
  --panel: rgba(30,16,8,0.03);
  --panel-2: rgba(30,16,8,0.05);
  --line: rgba(30,16,8,0.10);
  --line-2: rgba(30,16,8,0.18);
  --ink: #211208;
  --ink-dim: #5c4536;
  --ink-faint: #8f7b6c;
  --accent: #d8431d;
  --accent-2: #b8860a;
  --accent-soft: rgba(216,67,29,0.08);
  --grad: linear-gradient(135deg, #d8431d, #b8860a);
  --grad-on: #fff8ec;
  --grad-shadow: rgba(216,67,29,0.30);
  --hero-bg: linear-gradient(150deg, rgba(216,67,29,0.07), rgba(184,134,10,0.025));
  --code-bg: #211208; --code-ink: #f8efe6;
  --code-k: #d8431d; --code-s: #b8860a;
  --aurora-1: rgba(216,67,29,0.08);
  --aurora-2: rgba(184,134,10,0.05);
  --grid-line: rgba(30,16,8,0.035);
  --nav-bg: rgba(253,248,243,0.7);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink); font-family: var(--body);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  line-height: 1.7; overflow-x: clip; transition: background .4s ease, color .4s ease;
}
a { color: inherit; text-decoration: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

.bg-scene { position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.bg-scene::before, .bg-scene::after { content: ''; position: absolute; border-radius: 50%; filter: blur(90px); }
.bg-scene::before { top: -16%; left: 6%; width: 54%; height: 56%; background: radial-gradient(closest-side, var(--aurora-1), transparent 72%); }
.bg-scene::after { top: -8%; right: 2%; width: 44%; height: 50%; background: radial-gradient(closest-side, var(--aurora-2), transparent 72%); }
.bg-grid { position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 92% 56% at 50% 0%, #000 24%, transparent 76%);
          mask-image: radial-gradient(ellipse 92% 56% at 50% 0%, #000 24%, transparent 76%); }

.wrap { max-width: var(--read); margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (min-width: 768px) { .wrap-wide { padding: 0 34px; } }

/* Nav */
.nav-shell { position: fixed; top: 0; left: 0; right: 0; z-index: 50; padding: 16px 0; transition: padding .35s; }
.nav-shell.scrolled { padding: 9px 0; }
.nav { display: flex; align-items: center; justify-content: space-between; border-radius: 16px; padding: 11px 12px 11px 18px;
  background: var(--nav-bg); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 600; font-size: 18px; letter-spacing: -0.02em; }
.brand .mark { width: 28px; height: 28px; border-radius: 9px; display: grid; place-items: center; background: var(--grad); color: var(--grad-on); font-size: 15px; font-weight: 700; box-shadow: 0 6px 18px -6px var(--grad-shadow); }
.brand .nu { color: var(--ink-dim); font-weight: 500; }
.nav-links { display: none; align-items: center; gap: 30px; }
@media (min-width: 880px) { .nav-links { display: flex; } }
.nav-links a { font-size: 14px; color: var(--ink-dim); transition: color .2s; }
.nav-links a:hover { color: var(--ink); }
.nav-right { display: flex; align-items: center; gap: 12px; }
.icon-btn { width: 40px; height: 40px; border-radius: 11px; border: 1px solid var(--line-2); background: var(--panel); color: var(--ink-dim); display: grid; place-items: center; cursor: pointer; transition: color .2s, border-color .2s; flex: none; }
.icon-btn:hover { color: var(--ink); border-color: var(--accent); }
.icon-btn .moon { display: none; }
html[data-theme="dark"] .icon-btn .sun { display: none; }
html[data-theme="dark"] .icon-btn .moon { display: block; }
.btn { font-family: var(--body); font-size: 14px; font-weight: 500; border-radius: 11px; padding: 11px 20px; cursor: pointer; border: 1px solid transparent; transition: transform .2s, background .2s, border-color .2s, color .2s; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.btn-primary { background: var(--grad); color: var(--grad-on); font-weight: 600; box-shadow: 0 12px 30px -12px var(--grad-shadow); }
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost { color: var(--ink); border-color: var(--line-2); background: var(--panel); }
.btn-ghost:hover { border-color: var(--accent); }

/* Post header */
.post { padding-top: 124px; padding-bottom: 30px; }
.back { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--ink-dim); transition: gap .2s, color .2s; }
.back:hover { gap: 12px; color: var(--accent); }
.post-cat { margin-top: 26px; font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.post h1 { font-family: var(--display); font-weight: 600; letter-spacing: -0.03em; line-height: 1.08; font-size: clamp(30px, 5vw, 50px); margin: 14px 0 0; }
.post-meta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 22px; color: var(--ink-faint); font-size: 14px; }
.post-author { display: flex; align-items: center; gap: 10px; }
.post-author img { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; flex: none; border: 1px solid var(--line-2); }
.post-author .nm { color: var(--ink); font-weight: 500; }
.dot-sep { width: 4px; height: 4px; border-radius: 50%; background: var(--ink-faint); opacity: .6; }
.cover { display: block; width: 100%; aspect-ratio: 16/8; object-fit: cover; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); margin-top: 30px; }

/* Banner cover (for posts without a screenshot) */
.post-banner { margin-top: 30px; border-radius: var(--r-lg); border: 1px solid var(--line); padding: 40px 36px;
  background: var(--hero-bg);
  display: flex; align-items: center; gap: 20px; }
.post-banner .ic { width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center; flex: none;
  background: var(--grad); color: var(--grad-on); }
.post-banner .tx .eyebrow2 { font-size: 12px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.post-banner .tx h2 { margin: 6px 0 0; font-family: var(--display); font-weight: 600; font-size: 22px; letter-spacing: -0.01em; }

/* Article body */
.body { font-size: 17.5px; color: var(--ink); padding-bottom: 30px; }
.body p { margin: 0 0 22px; color: var(--ink-dim); }
.body .lead { font-size: 20px; color: var(--ink); line-height: 1.6; }
.body h2 { font-family: var(--display); font-weight: 600; letter-spacing: -0.02em; font-size: 28px; line-height: 1.2; margin: 46px 0 16px; }
.body h3 { font-family: var(--display); font-weight: 600; font-size: 21px; margin: 34px 0 12px; }
.body h4 { font-family: var(--display); font-weight: 600; font-size: 17px; color: var(--ink); margin: 26px 0 10px; letter-spacing: 0.01em; }
.body ul, .body ol { margin: 0 0 22px; padding-left: 22px; color: var(--ink-dim); }
.body li { margin: 0 0 9px; }
.body li ul, .body li ol { margin: 9px 0 0; }
.body strong { color: var(--ink); font-weight: 600; }
.body em { color: var(--ink-dim); }
.body a.link { color: var(--accent); border-bottom: 1px solid var(--line-2); transition: border-color .2s; }
.body a.link:hover { border-color: var(--accent); }
.body code { font-family: var(--mono); font-size: 0.84em; background: var(--accent-soft); color: var(--accent-2); padding: 2px 7px; border-radius: 6px; word-break: break-word; }
.body img { display: block; max-width: 100%; height: auto; margin: 4px auto 28px; border-radius: var(--r-md); border: 1px solid var(--line); }
.body hr { border: none; border-top: 1px solid var(--line); margin: 40px 0; }

pre { background: var(--code-bg); color: var(--code-ink); border-radius: var(--r-md); padding: 20px 22px; overflow-x: auto; margin: 0 0 26px; border: 1px solid var(--line); }
pre code { font-family: var(--mono); font-size: 13.5px; background: none; color: inherit; padding: 0; line-height: 1.7; }
.tok-c { color: #8a7666; } .tok-k { color: var(--code-k); } .tok-s { color: var(--code-s); } .tok-v { color: #6fa8dc; }

.callout { display: flex; gap: 14px; background: var(--accent-soft); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: var(--r-md); padding: 16px 18px; margin: 0 0 26px; }
.callout svg { color: var(--accent); flex: none; margin-top: 2px; }
.callout p { margin: 0; color: var(--ink); font-size: 15.5px; }
.callout.warn { border-left-color: #6fa8dc; background: rgba(111,168,220,0.10); }
.callout.warn svg { color: #6fa8dc; }

.steps { counter-reset: step; list-style: none; padding-left: 0; }
.steps > li { position: relative; padding-left: 44px; margin-bottom: 16px; }
.steps > li::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: -2px; width: 28px; height: 28px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-family: var(--display); font-weight: 600; font-size: 14px; display: grid; place-items: center; border: 1px solid var(--line-2); }

figure { margin: 0 0 28px; }
figure img { margin-bottom: 8px; }
figcaption { font-size: 13.5px; color: var(--ink-faint); text-align: center; }

.body table { width: 100%; border-collapse: collapse; margin: 0 0 26px; font-size: 15px; }
.body th, .body td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.body th { color: var(--ink); font-weight: 600; font-family: var(--display); }
.body td { color: var(--ink-dim); }

.tags { display: flex; flex-wrap: wrap; gap: 10px; padding: 28px 0; border-top: 1px solid var(--line); }
.tag { font-size: 13px; color: var(--ink-dim); background: var(--panel); border: 1px solid var(--line-2); border-radius: var(--pill); padding: 7px 15px; }

.author-card { display: flex; gap: 18px; align-items: flex-start; background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-radius: var(--r-lg); padding: 26px; margin: 8px 0 0; }
.author-card img { width: 60px; height: 60px; border-radius: 50%; object-fit: cover; flex: none; border: 1px solid var(--line-2); }
.author-card .nm { font-family: var(--display); font-weight: 600; font-size: 17px; }
.author-card .rl { font-size: 11.5px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-top: 3px; }
.author-card .bio { font-size: 14.5px; color: var(--ink-dim); margin-top: 10px; }

/* Next / prev */
.post-nav { display: grid; gap: 16px; margin-top: 40px; }
@media (min-width: 640px) { .post-nav { grid-template-columns: 1fr 1fr; } }
.post-nav a { display: block; padding: 22px; border-radius: var(--r-md); background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: transform .2s, border-color .2s; }
.post-nav a:hover { transform: translateY(-3px); border-color: var(--accent); }
.post-nav .lbl { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); }
.post-nav .ttl { font-family: var(--display); font-weight: 500; font-size: 16px; margin-top: 8px; letter-spacing: -0.01em; }
.post-nav a.next { text-align: right; }

footer { padding: 48px 0 56px; }
.foot-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; border-top: 1px solid var(--line); padding-top: 28px; }
.foot-row .copy { font-size: 13px; color: var(--ink-faint); }
.socials { display: flex; gap: 10px; }
.socials a { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 11px; border: 1px solid var(--line-2); background: var(--panel); color: var(--ink-dim); transition: color .2s, border-color .2s, transform .2s; }
.socials a:hover { color: var(--ink); border-color: var(--accent); transform: translateY(-2px); }