/* HeaderForge site — dark, derived from the extension's own palette.
   Amber = outbound request, cyan = inbound response, violet = profile.
   The →← arrow motif is the signature element. */

:root {
  --bg: #14171c;
  --bg-2: #1a1e25;
  --bg-3: #101318;
  --border: #2a3038;
  --border-2: #3d4654;
  --text: #d7dce3;
  --text-dim: #79828f;
  --text-faint: #545c68;
  --request: #e0a53e;   /* amber — outbound */
  --response: #4ec5d4;  /* cyan  — inbound  */
  --profile: #b892e0;   /* violet          */
  --filter: #8a93a6;    /* slate           */
  --danger: #d4604a;

  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --display: "Space Grotesk", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, sans-serif;

  --maxw: 1120px;
  --pad: 24px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }

/* ambient: faint amber/cyan glow behind the page top */
body::before {
  content: "";
  position: fixed;
  top: -280px; left: 50%;
  width: 900px; height: 600px;
  transform: translateX(-50%);
  background:
    radial-gradient(closest-side, rgba(224,165,62,0.10), transparent 70%),
    radial-gradient(closest-side, rgba(78,197,212,0.08), transparent 70%);
  background-position: -160px 0, 160px 40px;
  background-repeat: no-repeat;
  pointer-events: none;
  z-index: 0;
}

/* ---------------------------------------------------------------- nav */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 23, 28, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 600; font-size: 18px; letter-spacing: -0.01em; }
.brand .mark { width: 26px; height: 26px; flex: none; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 8px 14px;
  border-radius: 7px;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--text); background: var(--bg-2); }
.nav-links a.active { color: var(--text); }
.nav-cta {
  margin-left: 6px;
  padding: 8px 16px !important;
  color: var(--bg) !important;
  background: var(--request);
  border-radius: 7px;
  font-weight: 600 !important;
}
.nav-cta:hover { filter: brightness(1.07); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); cursor: pointer; padding: 8px; }

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 62px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px var(--pad) 16px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-cta { text-align: center; }
}

/* ---------------------------------------------------------------- type */

h1, h2, h3, h4 { font-family: var(--display); font-weight: 600; letter-spacing: -0.02em; line-height: 1.12; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.eyebrow .arw { font-weight: 700; }
.arw-req { color: var(--request); }
.arw-res { color: var(--response); }
.arw-prof { color: var(--profile); }
.arw-flt { color: var(--filter); }

section { position: relative; z-index: 1; }

/* ---------------------------------------------------------------- hero */

.hero { padding: 84px 0 56px; }
.hero h1 { font-size: clamp(38px, 6vw, 62px); max-width: 15ch; }
.hero .grad {
  background: linear-gradient(100deg, var(--request), var(--response));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub {
  margin-top: 22px;
  max-width: 52ch;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-dim);
}
.hero-cta { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 22px;
  border-radius: 9px;
  font-family: var(--display);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .12s, filter .15s, background .15s, border-color .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--request); color: var(--bg); }
.btn-primary:hover { filter: brightness(1.07); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-2); }
.btn-ghost:hover { background: var(--bg-2); border-color: var(--text-faint); }

.badges { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 8px 10px; }
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 12px;
  font-family: var(--mono); font-size: 12.5px; font-weight: 500;
  color: var(--text-dim);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 999px;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; flex: none; }

/* signature: the rule → result panel */
.forge {
  margin-top: 46px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.forge-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 15px;
  border-bottom: 1px solid var(--border);
}
.forge-bar .tl { width: 11px; height: 11px; border-radius: 50%; background: var(--border-2); }
.forge-bar .cap { margin-left: 8px; font-family: var(--mono); font-size: 12px; color: var(--text-faint); }
.forge-body { padding: 22px clamp(16px, 3vw, 30px); font-family: var(--mono); font-size: clamp(12.5px, 1.7vw, 15px); line-height: 2.1; }
.forge-line { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.forge-line .arrow { font-weight: 700; font-size: 1.1em; }
.forge-line.out .arrow { color: var(--request); }
.forge-line.in .arrow { color: var(--response); }
.forge-k { color: var(--text); }
.forge-strike { color: var(--text-faint); text-decoration: line-through; text-decoration-color: var(--danger); }
.forge-add { color: var(--request); }
.forge-add.res { color: var(--response); }
.forge-op {
  font-size: 0.8em; font-weight: 700; letter-spacing: 0.04em;
  padding: 1px 7px; border-radius: 4px;
  color: var(--bg);
}
.op-set { background: var(--request); }
.op-rem { background: var(--danger); color: #fff; }
.op-set-res { background: var(--response); }
.forge-rule {
  margin: 6px 0;
  padding: 8px 12px;
  background: var(--bg-3);
  border-left: 2px solid var(--profile);
  border-radius: 0 6px 6px 0;
  color: var(--text-dim);
  font-size: 0.92em;
}
.forge-rule b { color: var(--profile); font-weight: 600; }

/* ---------------------------------------------------------------- trust strip */

.strip { padding: 20px 0 8px; }
.strip-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.strip-card {
  padding: 18px 16px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.strip-card .ic { font-size: 20px; line-height: 1; margin-bottom: 10px; display: block; }
.strip-card h3 { font-size: 15px; margin-bottom: 4px; }
.strip-card p { font-size: 13px; color: var(--text-dim); line-height: 1.5; }
@media (max-width: 900px) { .strip-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px) { .strip-grid { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- features */

.features { padding: 56px 0 20px; }
.sec-head { max-width: 60ch; margin-bottom: 8px; }
.sec-head h2 { font-size: clamp(26px, 4vw, 38px); margin-top: 12px; }
.sec-head p { margin-top: 14px; color: var(--text-dim); font-size: 17px; }

.feat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding: 46px 0;
  border-top: 1px solid var(--border);
}
.feat:first-of-type { border-top: none; }
.feat.flip .feat-text { order: 2; }
.feat-text h3 { font-size: clamp(22px, 3vw, 28px); margin: 14px 0 12px; }
.feat-text p { color: var(--text-dim); margin-bottom: 16px; }
.feat-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.feat-list li { display: flex; gap: 11px; font-size: 15px; }
.feat-list li::before {
  content: "→"; flex: none; font-family: var(--mono); font-weight: 700; color: var(--request);
}
.feat.res .feat-list li::before { content: "←"; color: var(--response); }
.feat.prof .eyebrow .arw, .feat.prof .feat-list li::before { color: var(--profile); }
.feat.prof .feat-list li::before { content: "▣"; }
.feat.flt .feat-list li::before { content: "⌖"; color: var(--filter); }

.shot {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-2);
  box-shadow: 0 24px 60px -30px rgba(0,0,0,0.7);
}
.shot img { display: block; width: 100%; height: auto; }

@media (max-width: 760px) {
  .feat { grid-template-columns: 1fr; padding: 36px 0; }
  .feat.flip .feat-text { order: 0; }
  .feat .shot { order: 2; }
}

/* ---------------------------------------------------------------- values band */

.values { padding: 60px 0; margin-top: 30px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-2); }
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 30px; }
.value h3 { font-size: 18px; margin-bottom: 8px; display: flex; align-items: center; gap: 9px; }
.value p { color: var(--text-dim); font-size: 15px; }
.value .k { font-family: var(--mono); color: var(--response); font-size: 15px; }
@media (max-width: 760px) { .values-grid { grid-template-columns: 1fr; gap: 18px; } }

/* ---------------------------------------------------------------- final cta */

.final { padding: 80px 0; text-align: center; }
.final h2 { font-size: clamp(28px, 5vw, 44px); }
.final p { margin: 16px auto 0; max-width: 46ch; color: var(--text-dim); font-size: 18px; }
.final .hero-cta { justify-content: center; margin-top: 30px; }
.final .os { margin-top: 20px; font-family: var(--mono); font-size: 13px; color: var(--text-faint); }

/* ---------------------------------------------------------------- footer */

.footer { border-top: 1px solid var(--border); padding: 46px 0 40px; }
.footer-top { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.footer .brand { margin-bottom: 12px; }
.footer .tag { color: var(--text-dim); font-size: 14px; max-width: 34ch; }
.footer-cols { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h4 { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-faint); margin-bottom: 12px; font-weight: 600; }
.footer-col a { display: block; color: var(--text-dim); font-size: 14px; padding: 4px 0; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--text-faint); }
.footer-bottom .mono { font-family: var(--mono); }

/* ---------------------------------------------------------------- generic page (docs/about/download) */

.page { padding: 56px 0 40px; }
.page-hero { padding: 60px 0 30px; border-bottom: 1px solid var(--border); }
.page-hero h1 { font-size: clamp(32px, 5vw, 48px); }
.page-hero p { margin-top: 16px; max-width: 56ch; color: var(--text-dim); font-size: 18px; }

.prose { max-width: 760px; }
.prose h2 { font-size: 26px; margin: 44px 0 14px; padding-top: 20px; scroll-margin-top: 80px; }
.prose h3 { font-size: 19px; margin: 28px 0 10px; }
.prose p { margin-bottom: 14px; color: var(--text); }
.prose ul, .prose ol { margin: 0 0 16px 22px; }
.prose li { margin-bottom: 8px; }
.prose code {
  font-family: var(--mono); font-size: 0.88em;
  background: var(--bg-3); border: 1px solid var(--border);
  border-radius: 4px; padding: 1px 6px; color: var(--response);
}
.prose strong { color: var(--text); }
.prose .lead { font-size: 18px; color: var(--text-dim); }

.callout {
  margin: 18px 0;
  padding: 14px 16px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  font-size: 14.5px;
  color: var(--text-dim);
}
.callout.warn { border-color: rgba(212,96,74,0.4); background: rgba(212,96,74,0.06); color: #e9b3a7; }
.callout b { color: var(--text); }
.callout.warn b { color: #f0b8ab; }

.doc-shot { margin: 22px 0; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--bg-2); }
.doc-shot img { display: block; width: 100%; height: auto; }
.doc-shot .cap { padding: 8px 14px; font-size: 12.5px; color: var(--text-faint); border-top: 1px solid var(--border); font-family: var(--mono); }

/* docs layout with sticky TOC */
.docs-layout { display: grid; grid-template-columns: 220px 1fr; gap: 50px; align-items: start; }
.toc { position: sticky; top: 84px; }
.toc h4 { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-faint); margin-bottom: 12px; }
.toc a { display: block; padding: 5px 0 5px 12px; color: var(--text-dim); font-size: 14px; border-left: 2px solid var(--border); transition: color .12s, border-color .12s; }
.toc a:hover { color: var(--text); border-left-color: var(--request); }
@media (max-width: 860px) { .docs-layout { grid-template-columns: 1fr; } .toc { position: static; margin-bottom: 30px; } .toc-links { display: flex; flex-wrap: wrap; gap: 6px; } .toc a { border-left: none; padding: 6px 10px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 6px; } }

/* download cards */
.dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 36px; }
.dl-card {
  padding: 30px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex; flex-direction: column;
}
.dl-card.primary { border-color: rgba(224,165,62,0.4); }
.dl-card .tag { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-faint); }
.dl-card h3 { font-size: 22px; margin: 12px 0 10px; }
.dl-card p { color: var(--text-dim); font-size: 15px; flex: 1; margin-bottom: 22px; }
.dl-card .btn { justify-content: center; }
.dl-steps { counter-reset: s; list-style: none; margin: 14px 0 0; }
.dl-steps li { position: relative; padding: 6px 0 6px 34px; font-size: 14px; color: var(--text-dim); }
.dl-steps li::before {
  counter-increment: s; content: counter(s);
  position: absolute; left: 0; top: 6px;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--bg-3); border: 1px solid var(--border);
  font-family: var(--mono); font-size: 12px; color: var(--request);
  display: grid; place-items: center;
}
.dl-note { margin-top: 30px; font-size: 14px; color: var(--text-faint); }
@media (max-width: 680px) { .dl-grid { grid-template-columns: 1fr; } }

/* about */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 34px 0; }
.about-card { padding: 24px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 12px; }
.about-card h3 { font-size: 17px; margin-bottom: 8px; display: flex; align-items: center; gap: 9px; }
.about-card p { color: var(--text-dim); font-size: 14.5px; }
.about-card a.inline { color: var(--response); border-bottom: 1px solid rgba(78,197,212,0.3); }
@media (max-width: 680px) { .about-grid { grid-template-columns: 1fr; } }

.license {
  margin: 20px 0;
  padding: 22px 24px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--text-dim);
  white-space: pre-wrap;
}
.license b { color: var(--text); }

.support-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0; }
.support-row a {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 18px;
  background: var(--bg-2); border: 1px solid var(--border-2); border-radius: 10px;
  font-family: var(--display); font-weight: 600; font-size: 14px;
  transition: border-color .15s, background .15s;
}
.support-row a:hover { border-color: var(--request); background: var(--bg-3); }
.support-row .ic { font-size: 16px; }

/* focus visibility */
a:focus-visible, .btn:focus-visible, button:focus-visible { outline: 2px solid var(--response); outline-offset: 3px; border-radius: 6px; }