/* Loop Engineering — editorial-technical design system
   terminal-meets-print-journal · one motif: the loop glyph + amber cursor */

:root {
  /* palette */
  --bg: #16140f;
  --bg-raised: #1d1a13;
  --ink: #ece6d8;
  --ink-dim: #9a917f;
  --hair: #2e2a20;
  --amber: #e8a33d;
  --amber-soft: #b9842f;
  --sage: #8fae93;
  --clay: #cd8a63;
  --link: #e8a33d;

  /* type */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Newsreader", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  /* rhythm */
  --measure: 66ch;
  --col: 720px;
  --gap: 1.5rem;
  --section-gap: clamp(3rem, 9vw, 5.5rem);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
  /* warm radial glow near the top + faint grain, never flat, never black */
  background-image:
    radial-gradient(120% 70% at 50% -8%, rgba(232, 163, 61, 0.10), rgba(232, 163, 61, 0) 60%),
    radial-gradient(80% 50% at 85% 0%, rgba(205, 138, 99, 0.06), rgba(205, 138, 99, 0) 55%);
  background-attachment: fixed;
  background-repeat: no-repeat;
}

/* faint grain overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* layout shell */
.wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--col);
  margin-inline: auto;
  padding-inline: 1.25rem;
  padding-block: clamp(2.5rem, 8vw, 4.5rem);
}

main > section {
  margin-top: var(--section-gap);
}

p {
  max-width: var(--measure);
}

a {
  color: var(--link);
  text-decoration-color: var(--amber-soft);
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: var(--amber);
}

a:focus-visible,
.chapter:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- shared bits ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0;
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.55rem, 6vw, 2.1rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0.4rem 0 1rem;
}

h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  margin: 0;
}

/* verification chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  padding: 0.2em 0.6em;
  border-radius: 999px;
  border: 1px solid currentColor;
  white-space: nowrap;
  vertical-align: middle;
}

.chip::before {
  content: "";
  width: 0.5em;
  height: 0.5em;
  border-radius: 50%;
  background: currentColor;
}

.chip--sage {
  color: var(--sage);
}

.chip--clay {
  color: var(--clay);
}