@property --mono { syntax: "<number>"; inherits: true; initial-value: 0; }
@property --casl { syntax: "<number>"; inherits: true; initial-value: 0; }

:root {
  color-scheme: light dark;
  --tunnel: #21100a;
  --tunnel-2: #321608;
  --rim: #ffc680;
  --cream: #fff3e2;
  --cream-dim: #e6c9ae;
  --pup: #ff9a3c;
  --pup-hover: #ffb062;

  --paper: #ffffff;
  --ink: #2a1206;
  --muted: #7a5b4a;
  --line: #efe1d4;
  --soft: #fff7ee;
  --link: #b64a08;

  --sans: "Recursive", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --monofam: "Recursive", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 1120px;
  --read: 70ch;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #170b06;
    --ink: #fff3e2;
    --muted: #c9ac97;
    --line: #3a2015;
    --soft: #211009;
    --link: #ffb46b;
  }
}

* { box-sizing: border-box; font-variation-settings: "CASL" var(--casl), "MONO" var(--mono); }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--pup); outline-offset: 3px; border-radius: 6px; }
code, kbd, pre { font-family: var(--monofam); --mono: 1; --casl: 0; }
.wrap { width: min(var(--wrap), 100% - 40px); margin-inline: auto; }

/* ---------- top bar ---------- */
.bar { background: linear-gradient(180deg, var(--tunnel) 0%, var(--tunnel-2) 100%); color: var(--cream); }
.bar nav { display: flex; align-items: center; justify-content: space-between; padding-block: 18px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--cream); text-decoration: none; font-weight: 800; font-size: 1.15rem; --casl: 1; letter-spacing: -0.02em; }
.brand img { width: 30px; height: 30px; }
.navlinks { display: flex; align-items: center; gap: 24px; font-size: .95rem; }
.navlinks a { color: var(--cream-dim); text-decoration: none; }
.navlinks a:hover, .navlinks a[aria-current] { color: var(--cream); }
.navlinks .cta { background: var(--pup); color: #2a1206; padding: 7px 14px; border-radius: 10px; font-weight: 650; --casl: .4; }
.navlinks .cta:hover { background: var(--pup-hover); color: #2a1206; }

/* ---------- article ---------- */
main { padding-block: clamp(40px, 7vw, 80px); }
.article { max-width: var(--read); margin-inline: auto; }
.crumbs { font-size: .9rem; color: var(--muted); margin: 0 0 18px; }
.crumbs a { color: var(--muted); }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.015em; text-wrap: balance; }
h1 { font-size: clamp(2rem, 4.6vw, 3rem); font-weight: 800; --casl: .9; margin: 0; letter-spacing: -0.025em; }
h2 { font-size: clamp(1.4rem, 2.6vw, 1.8rem); font-weight: 760; --casl: .7; margin: 2.4em 0 .5em; }
h3 { font-size: 1.15rem; font-weight: 700; --casl: .5; margin: 1.8em 0 .4em; }
p, ul, ol, table, pre { margin: 0 0 1.1em; }
p, li { text-wrap: pretty; }
li + li { margin-top: .35em; }
li::marker { color: var(--pup); }
.meta { color: var(--muted); font-size: .92rem; margin: 14px 0 0; }
.lede { font-size: 1.18rem; color: var(--muted); margin-top: 24px; }
:not(pre) > code { font-size: .9em; background: var(--soft); border: 1px solid var(--line); border-radius: 6px; padding: .08em .35em; overflow-wrap: anywhere; }
pre {
  padding: 16px 18px; border-radius: 12px; overflow-x: auto;
  background: var(--tunnel); color: var(--cream); font-size: .88rem; line-height: 1.7;
  border: 1px solid var(--line);
}
pre .c { color: var(--cream-dim); opacity: .75; }
.callout { border-left: 3px solid var(--pup); background: var(--soft); padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 0 0 1.2em; }
.callout p:last-child { margin-bottom: 0; }
.table-wrap { overflow-x: auto; margin: 0 0 1.2em; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; margin: 0; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { font-weight: 680; --casl: .4; background: var(--soft); }
figure { margin: 0 0 1.4em; }
figure img { width: 100%; height: auto; display: block; border-radius: 12px; border: 1px solid var(--line); }
figcaption { font-size: .88rem; color: var(--muted); margin-top: 8px; }
.end-cta { margin-top: 3em; padding: 24px; border-radius: 14px; background: linear-gradient(180deg, var(--tunnel) 0%, var(--tunnel-2) 100%); color: var(--cream); }
.end-cta h2 { margin: 0 0 .4em; font-size: 1.4rem; color: var(--cream); }
.end-cta p { color: var(--cream-dim); }
.end-cta a.btn { display: inline-block; background: var(--pup); color: #2a1206; text-decoration: none; font-weight: 650; padding: 11px 18px; border-radius: 10px; }
.end-cta a.btn:hover { background: var(--pup-hover); }
.end-cta a:not(.btn) { color: var(--rim); }

/* ---------- blog index ---------- */
.posts { list-style: none; padding: 0; margin: 32px 0 0; }
.posts li { border-top: 1px solid var(--line); padding: 24px 0; margin: 0; }
.posts li:last-child { border-bottom: 1px solid var(--line); }
.posts h2 { margin: 0 0 .3em; font-size: 1.35rem; }
.posts h2 a { color: var(--ink); text-decoration: none; }
.posts h2 a:hover { color: var(--link); }
.posts p { color: var(--muted); margin: 0; }
.posts .meta { margin-top: 8px; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding-block: 32px 48px; font-size: .9rem; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 32px; justify-content: space-between; }
footer a { color: var(--muted); }
footer nav { display: flex; flex-wrap: wrap; gap: 12px 24px; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .navlinks { gap: 16px; }
  .navlinks .hide-sm { display: none; }
}