/* Layout: the site is an inspection tag. Signal-yellow ground, black ink, ruled form fields with mono labels;
   one white "tag card" carries the live chart. Deliberately single-theme: a tag is yellow in any light. */
:root {
  color-scheme: light;
  --tag: #ffd400;
  --tag-deep: #f0c400;
  --ink: #111110;
  --ink-2: #3b3a33;
  --paper: #ffffff;
  --stamp: #d7261e;
  --rule: 2px solid var(--ink);
  --hair: 1px solid rgba(17, 17, 16, .28);
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Martian Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* chart tokens (inside the white tag card) */
  --bg: #ffffff; --muted: #8a887f; --grid: #e6e4da; --axis: #c3c1b5; --bar: #ebe9e0; --bar-on: #d9d7cc;
  --latest: #2a78d6; --previous: #eb6834; --older: #1baf7a; --up: #006300; --down: #b3261e; --warn: #9a5b00;
  --tip-bg: #111110; --tip-ink: #f3f2ee;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--tag); color: var(--ink); font: 16px/1.55 var(--body); }
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1.5px; }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
.gutter { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.inner { max-width: 1180px; margin: 0 auto; }
.hero .inner, .band .inner { grid-template-columns: minmax(0, 1fr); }

/* nav */
.top { border-bottom: var(--rule); }
.top .inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 900 20px/1 var(--display); font-stretch: 125%; letter-spacing: -.01em; }
.brand svg { width: 36px; height: 22px; }
.top nav { display: flex; gap: 22px; align-items: center; font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.top nav a { text-decoration: none; white-space: nowrap; }
.top nav a:hover { text-decoration: underline; }
.top nav .cta { background: var(--ink); color: var(--tag); padding: 10px 14px; border-radius: 4px; }
.top nav .cta:hover { text-decoration: none; background: #2b2a26; }

/* type */
.label { font: 500 11px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.display {
  font: 900 clamp(30px, 8.3vw, 116px)/.88 var(--display); font-stretch: 125%; letter-spacing: -.035em;
  text-transform: uppercase; margin: 0; text-wrap: balance;
}
.h2 { font: 900 clamp(28px, 5.4vw, 68px)/.92 var(--display); font-stretch: 125%; letter-spacing: -.03em; text-transform: uppercase; margin: 0; text-wrap: balance; }
.h3 { font: 800 21px/1.15 var(--display); font-stretch: 110%; letter-spacing: -.01em; margin: 0; }
.lede { font-size: clamp(18px, 2vw, 21px); line-height: 1.45; max-width: 36ch; margin: 0; }
p { margin: 0; max-width: 62ch; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; font: 700 15px/1 var(--body); padding: 15px 20px; border-radius: 4px; border: var(--rule); text-decoration: none; cursor: pointer; background: transparent; color: var(--ink); }
.btn.solid { background: var(--ink); color: var(--tag); }
.btn.solid:hover { background: #2b2a26; }
.btn:not(.solid):hover { background: var(--tag-deep); }
.btn .arr { font-family: var(--mono); font-weight: 500; }

/* hero */
.hero .inner { display: grid; gap: 34px; padding-block: 56px 64px; }
.hero .meta { display: flex; flex-wrap: wrap; gap: 8px 26px; }
.hero .cols { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: start; }
.hero .copy { display: grid; gap: 26px; align-content: start; min-width: 0; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* the tag card */
.tagcard {
  position: relative; background: var(--paper); border: var(--rule); border-radius: 6px 18px 18px 6px; padding: 18px 22px 18px 54px; min-width: 0;
  box-shadow: 8px 8px 0 var(--ink);
}
.tagcard::before { /* punched hole */
  content: ""; position: absolute; left: 18px; top: 50%; width: 18px; height: 18px; margin-top: -9px; border-radius: 50%;
  background: var(--tag); border: var(--rule);
}
.tagcard::after { /* perforation */
  content: ""; position: absolute; left: 44px; top: 14px; bottom: 14px; border-left: 2px dashed rgba(17,17,16,.22);
}
.tagcard .tag-head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-bottom: 10px; border-bottom: var(--hair); margin-bottom: 4px; }
.tagcard .tag-head a { font: 500 11px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.tagcard .ep-feature { border-bottom: 0; padding-block: 12px 4px; }
.tagcard .legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 12px; color: var(--ink-2); padding-top: 8px; border-top: var(--hair); margin-top: 6px; }
.tagcard .legend span { display: inline-flex; gap: 6px; align-items: center; }
.tagcard .sw-line { width: 16px; height: 2px; display: inline-block; border-radius: 2px; }
.tagcard .sw-bar { width: 10px; height: 12px; border-radius: 2px 2px 0 0; background: var(--bar); display: inline-block; }
.tag-loading { padding: 60px 0; font: 12px var(--mono); color: var(--muted); }

/* bands */
.band { border-top: var(--rule); }
.band .inner { padding-block: 64px; display: grid; gap: 36px; }
.band.ink { background: var(--ink); color: var(--tag); }
.band.ink .btn { border-color: var(--tag); color: var(--tag); }
.band.ink .btn:hover { background: #2b2a26; }
.band.paper { background: var(--paper); }
.sec-head { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 24px; align-items: start; }

/* the three tricks */
.tricks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: var(--rule); }
.trick { padding: 22px; display: grid; gap: 14px; align-content: start; min-width: 0; }
.trick + .trick { border-left: var(--rule); }
.trick .struck { font: 900 clamp(24px, 2.6vw, 34px)/.98 var(--display); font-stretch: 118%; letter-spacing: -.02em; text-transform: uppercase; position: relative; }
.trick .struck s { text-decoration: none; background: linear-gradient(transparent 46%, var(--stamp) 46%, var(--stamp) 58%, transparent 58%); }
.trick .fix { font-size: 15px; }
.trick .fix b { font-weight: 700; }

/* anatomy */
.anatomy { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: var(--rule); }
.anatomy > div { padding: 18px 18px 0 0; display: grid; gap: 8px; align-content: start; }
.anatomy > div + div { padding-left: 18px; border-left: var(--hair); }
.anatomy .glyph { height: 28px; display: flex; align-items: flex-end; gap: 4px; }
.anatomy .glyph i { display: block; width: 12px; background: var(--bar); border-radius: 2px 2px 0 0; }
.anatomy .glyph .ln { width: 42px; height: 2px; border-radius: 2px; margin-bottom: 12px; }

/* audiences */
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border: var(--rule); }
.split > div { padding: 28px; display: grid; gap: 16px; align-content: start; }
.split > div + div { border-left: var(--rule); }
.split ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.split li { padding-left: 22px; position: relative; }
.split li::before { content: "→"; position: absolute; left: 0; font-family: var(--mono); }

/* ledger excerpt */
.ledger-cols { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: start; }
.ledger-cols .copy { display: grid; gap: 18px; }
.entries { border: 2px solid var(--tag); border-radius: 6px; overflow-x: auto; }
.entry { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 0; font: 12px/1.6 var(--mono); border-bottom: 1px solid rgba(255,212,0,.3); }
.entry:last-child { border-bottom: 0; }
.entry .seq { padding: 12px; border-right: 1px solid rgba(255,212,0,.3); }
.entry .bd { padding: 12px 14px; display: grid; gap: 2px; min-width: 0; }
.entry .k { font-weight: 500; }
.entry .h { opacity: .62; overflow-wrap: anywhere; }
.entry.rm .k { color: #ff7a6b; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border: var(--rule); }
.step { padding: 22px; display: grid; gap: 12px; align-content: start; min-width: 0; }
.step + .step { border-left: var(--rule); }
.step .n { font: 900 54px/.8 var(--display); font-stretch: 125%; }
pre.snip { margin: 0; background: var(--ink); color: #f6efc6; border-radius: 6px; padding: 18px; overflow-x: auto; font: 12.5px/1.65 var(--mono); }
pre.snip .c { color: #a8a38a; }
pre.snip .s { color: var(--tag); }

/* plans */
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.plan { background: var(--paper); border: var(--rule); border-radius: 6px; padding: 26px; display: grid; gap: 16px; align-content: start; }
.plan .price { font: 900 44px/1 var(--display); font-stretch: 125%; letter-spacing: -.02em; }
.plan ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.plan li { padding-left: 22px; position: relative; }
.plan li::before { content: "✓"; position: absolute; left: 0; font-weight: 700; }
.plan.dark { background: var(--ink); color: var(--tag); }
.plan.dark .btn { border-color: var(--tag); color: var(--tag); }
.plan.dark .btn.solid { background: var(--tag); color: var(--ink); }

/* footer */
.foot { border-top: var(--rule); }
.foot .inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; padding-block: 26px 40px; font: 12px/1.5 var(--mono); }
.foot nav { display: flex; gap: 18px; flex-wrap: wrap; }

/* forms (auth + verified) */
.formpage .inner { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 48px; padding-block: 56px 72px; align-items: start; }
.formcard { background: var(--paper); border: var(--rule); border-radius: 6px; padding: 28px; display: grid; gap: 16px; box-shadow: 8px 8px 0 var(--ink); }
.formcard label { display: grid; gap: 6px; font: 500 11px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.formcard input, .formcard textarea { font: 16px/1.4 var(--body); padding: 12px 13px; border: var(--rule); border-radius: 4px; background: #fff; color: var(--ink); width: 100%; text-transform: none; letter-spacing: 0; }
.formcard textarea { min-height: 120px; resize: vertical; }
.formcard .btn { justify-content: center; }
.formcard .msg { font-size: 14px; color: var(--stamp); min-height: 1.4em; margin: 0; }
.formcard .msg.ok { color: var(--up); }
.formcard .small { font-size: 14px; }

/* docs */
.docs .inner { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 48px; padding-block: 0 72px; }
.docs aside { position: sticky; top: env(safe-area-inset-top, 0px); align-self: start; padding-top: 40px; display: grid; gap: 6px; font: 12px/1.5 var(--mono); }
.docs aside a { text-decoration: none; padding: 3px 0; }
.docs aside a:hover { text-decoration: underline; }
.docs aside .label { margin-top: 14px; opacity: .7; }
.doc { background: var(--paper); border-left: var(--rule); border-right: var(--rule); padding: 40px clamp(18px, 4vw, 48px) 56px; min-width: 0; display: grid; gap: 18px; align-content: start; }
.doc h1 { font: 900 clamp(36px, 5vw, 56px)/.95 var(--display); font-stretch: 125%; letter-spacing: -.03em; text-transform: uppercase; margin: 0 0 6px; }
.doc h2 { font: 800 26px/1.1 var(--display); font-stretch: 115%; letter-spacing: -.01em; margin: 30px 0 0; padding-top: 22px; border-top: var(--rule); scroll-margin-top: 16px; }
.doc h3 { font: 700 17px/1.3 var(--body); margin: 10px 0 0; scroll-margin-top: 16px; }
.doc p, .doc li { max-width: 72ch; }
.doc ul, .doc ol { margin: 0; padding-left: 22px; display: grid; gap: 6px; }
.doc code { font: 13px/1.5 var(--mono); background: #fff6bf; padding: 1px 5px; border-radius: 3px; }
.doc pre { margin: 0; background: var(--ink); color: #f6efc6; border-radius: 6px; padding: 16px 18px; overflow-x: auto; font: 12.5px/1.65 var(--mono); }
.doc pre code { background: none; padding: 0; font: inherit; color: inherit; }
.doc .tbl { overflow-x: auto; }
.doc table { border-collapse: collapse; width: 100%; font-size: 14px; }
.doc th, .doc td { text-align: left; padding: 9px 12px 9px 0; border-bottom: var(--hair); vertical-align: top; }
.doc th { font: 500 11px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .08em; border-bottom: var(--rule); }
.doc td:first-child { white-space: nowrap; }
.doc .callout { border: var(--rule); background: var(--tag); padding: 14px 16px; border-radius: 4px; }
.method { font: 600 12px var(--mono); background: var(--ink); color: var(--tag); padding: 3px 7px; border-radius: 3px; margin-right: 6px; }

@media (max-width: 900px) {
  .hero .cols, .ledger-cols, .formpage .inner { grid-template-columns: minmax(0, 1fr); }
  .tricks, .steps { grid-template-columns: minmax(0, 1fr); }
  .trick + .trick, .step + .step { border-left: 0; border-top: var(--rule); }
  .anatomy { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .anatomy > div:nth-child(3) { padding-left: 0; border-left: 0; }
  .split, .plans { grid-template-columns: minmax(0, 1fr); }
  .split > div + div { border-left: 0; border-top: var(--rule); }
  .sec-head { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .docs .inner { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .docs aside { position: static; padding-top: 24px; padding-bottom: 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .docs aside .label { grid-column: 1 / -1; }
  .doc { border-left: 0; border-right: 0; margin-inline: calc(-1 * max(16px, env(safe-area-inset-left, 0px))); }
}
@media (max-width: 560px) {
  .top nav .hide-sm { display: none; }
  .top nav { gap: 14px; }
  .brand { font-size: 18px; }
  .tagcard { padding: 14px 14px 14px 40px; box-shadow: 5px 5px 0 var(--ink); }
  .tagcard::before { left: 11px; width: 14px; height: 14px; margin-top: -7px; }
  .tagcard::after { left: 32px; }
  .anatomy { grid-template-columns: minmax(0, 1fr); }
  .anatomy > div + div { padding-left: 0; border-left: 0; border-top: var(--hair); padding-top: 16px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }