/* Landing page — light, technical, deliberately distinct from the dark product. */
:root {
  --ink: #0e1512;
  --ink-2: #33403a;
  --muted: #6b7772;
  --paper: #f4f6f5;
  --surface: #ffffff;
  --line: #dee4e1;
  --line-strong: #c3ccc7;

  --signal: #0f7b4f;      /* delivered */
  --signal-tint: #e7f2ec;
  --amber: #c8791a;       /* in flight */
  --amber-tint: #fbf0e0;

  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --gutter: clamp(20px, 5vw, 64px);
  --measure: 1180px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
code { font-family: var(--mono); font-size: 0.9em; }
.muted { color: var(--muted); }

h1, h2, h3 {
  font-family: var(--display);
  font-variation-settings: "wdth" 112;
  letter-spacing: -0.02em;
  margin: 0;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 14px;
}

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--body); font-size: 14px; font-weight: 500;
  padding: 10px 18px; border-radius: 2px; border: 1px solid transparent;
  cursor: pointer; transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
  white-space: nowrap;
}
.btn-solid { background: var(--ink); color: #fff; }
.btn-solid:hover { background: var(--signal); }
.btn-outline { border-color: var(--line-strong); color: var(--ink); }
.btn-outline:hover { border-color: var(--ink); }
.btn-quiet { color: var(--ink-2); }
.btn-quiet:hover { color: var(--ink); }
.btn-ghost-light { border-color: rgba(255, 255, 255, 0.35); color: #fff; }
.btn-ghost-light:hover { border-color: #fff; }
.btn-lg { padding: 14px 26px; font-size: 15px; }
.btn-block { width: 100%; }

:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

/* ---- top bar ---- */
.bar {
  display: flex; align-items: center; gap: 32px;
  padding: 0 var(--gutter); height: 68px;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 246, 245, 0.88);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 20;
}
.wordmark {
  font-family: var(--display); font-weight: 800;
  font-variation-settings: "wdth" 118;
  letter-spacing: -0.03em; font-size: 18px;
}
.wordmark span { color: var(--signal); margin-left: 3px; }
.bar-nav { display: flex; gap: 26px; flex: 1; font-size: 14px; color: var(--ink-2); }
.bar-nav a { padding: 4px 0; border-bottom: 1px solid transparent; }
.bar-nav a:hover { border-bottom-color: var(--signal); }
.bar-actions { display: flex; gap: 10px; align-items: center; }

/* ---- hero ---- */
.hero {
  max-width: var(--measure); margin: 0 auto;
  padding: clamp(56px, 9vw, 108px) var(--gutter) clamp(48px, 7vw, 88px);
  display: grid; grid-template-columns: 1.12fr 1fr; gap: clamp(32px, 4vw, 60px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 800;
  font-variation-settings: "wdth" 116;
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
}
.lede { font-size: 17px; color: var(--ink-2); max-width: 46ch; margin: 0 0 30px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note {
  margin: 26px 0 0; font-size: 13px; color: var(--muted);
  display: flex; align-items: center; gap: 8px;
}

.tick {
  width: 14px; height: 14px; border-radius: 50%; flex: none;
  background: var(--signal-tint); position: relative;
}
.tick::after {
  content: ""; position: absolute; left: 4px; top: 3px;
  width: 4px; height: 7px; border: solid var(--signal);
  border-width: 0 1.6px 1.6px 0; transform: rotate(42deg);
}

/* ---- signature: the delivery ledger ---- */
.ledger {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 3px;
  box-shadow: 0 1px 0 var(--line), 0 18px 40px -28px rgba(14, 21, 18, 0.45);
  font-family: var(--mono);
  font-size: 12.5px;
  overflow: hidden;
}
.ledger-head {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 18px; border-bottom: 1px solid var(--line);
  background: #fbfcfb;
}
.ledger-head .verb {
  font-size: 10px; font-weight: 500; letter-spacing: 0.1em;
  color: var(--signal); background: var(--signal-tint);
  padding: 3px 7px; border-radius: 2px;
}
.ledger-head code { color: var(--ink-2); flex: 1; }
.code-202 {
  font-size: 11px; color: var(--signal); font-weight: 500;
  opacity: 0; transition: opacity 260ms ease;
}
.ledger-req {
  margin: 0; padding: 16px 18px; color: var(--ink-2);
  line-height: 1.7; white-space: pre; overflow-x: auto;
}
.ledger-rule { height: 1px; background: var(--line); margin: 0 18px; }

.ledger-lines { list-style: none; margin: 0; padding: 10px 18px 18px; }
.ledger-lines li {
  display: grid; grid-template-columns: 92px 78px 1fr;
  gap: 12px; align-items: baseline;
  padding: 7px 0;
  opacity: 0; transform: translateY(3px);
  transition: opacity 300ms ease, transform 300ms ease;
}
.ledger-lines li.shown { opacity: 1; transform: none; }
.ts { color: var(--muted); font-size: 11.5px; }
.state {
  font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
  font-weight: 500; padding: 3px 7px; border-radius: 2px; text-align: center;
}
.state-queued { color: var(--amber); background: var(--amber-tint); }
.state-sent { color: var(--signal); background: var(--signal-tint); }
.state-delivered { color: #fff; background: var(--signal); }
.detail { color: var(--muted); font-size: 11.5px; }

/* ---- claim strip ---- */
/* Dividers are borders on the items, not a background behind a gapped grid —
   a background would also paint the section's gutters. */
.strip {
  max-width: var(--measure); margin: 0 auto clamp(52px, 7vw, 92px);
  padding: 0 var(--gutter);
  display: grid; grid-template-columns: repeat(3, 1fr);
}
.strip-item {
  padding: 26px 26px 30px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.strip-item:first-child { border-left: 0; padding-left: 0; }
.strip-item:last-child { padding-right: 0; }
.strip-item h3 { font-size: 16px; font-weight: 700; font-variation-settings: "wdth" 108; margin-bottom: 7px; }
.strip-item p { margin: 0; font-size: 14px; color: var(--muted); }

/* ---- bands ---- */
.band { padding: clamp(56px, 8vw, 100px) 0; border-top: 1px solid var(--line); }
.band-inner { max-width: var(--measure); margin: 0 auto; padding: 0 var(--gutter); }
.band-alt { background: var(--surface); }
.band h2 {
  font-size: clamp(28px, 3.6vw, 42px); font-weight: 700;
  line-height: 1.05; margin-bottom: 14px; max-width: 20ch;
}
.band-lede { font-size: 16px; color: var(--muted); max-width: 52ch; margin: 0 0 8px; }
.band-foot { font-size: 14px; color: var(--muted); margin: 20px 0 0; }
.band-foot a { color: var(--signal); border-bottom: 1px solid currentColor; }

/* ---- steps ---- */
.steps {
  list-style: none; margin: 42px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 40px);
}
.steps li { border-top: 2px solid var(--ink); padding-top: 16px; }
.step-n {
  font-family: var(--mono); font-size: 11px; color: var(--signal);
  letter-spacing: 0.12em; display: block; margin-bottom: 10px;
}
.steps h3 { font-size: 18px; font-weight: 700; margin-bottom: 7px; }
.steps p { margin: 0; font-size: 14px; color: var(--muted); }

/* ---- code card ---- */
.code-card {
  margin-top: 44px; background: var(--ink); border-radius: 3px; overflow: hidden;
  box-shadow: 0 20px 44px -30px rgba(14, 21, 18, 0.6);
}
.code-card-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 18px; border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--mono); font-size: 11.5px; color: rgba(255, 255, 255, 0.62);
  letter-spacing: 0.04em;
}
.code-card-head .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); }
.code-card-head span:nth-child(2) { flex: 1; }
.copy {
  background: none; border: 1px solid rgba(255, 255, 255, 0.2); color: rgba(255, 255, 255, 0.75);
  font-family: var(--mono); font-size: 11px; padding: 4px 10px; border-radius: 2px; cursor: pointer;
}
.copy:hover { border-color: rgba(255, 255, 255, 0.5); color: #fff; }
.code-card pre {
  margin: 0; padding: 22px 20px; overflow-x: auto;
  font-family: var(--mono); font-size: 13px; line-height: 1.75;
  color: #e8ece9;
}
.code-card .c { color: #7f9b8d; }

/* ---- feature grid ---- */
.grid {
  margin-top: 42px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
}
.grid article { background: var(--surface); padding: 28px 26px 32px; }
.grid h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.grid p { margin: 0; font-size: 14px; color: var(--muted); }

/* ---- use cases ---- */
.uses {
  margin-top: 40px; display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 40px);
}
.uses div { border-left: 2px solid var(--signal); padding-left: 18px; }
.uses h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.uses p { margin: 0; font-size: 14px; color: var(--muted); }

/* ---- pricing ---- */
.plans {
  margin-top: 44px; display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 18px; align-items: start;
}
.plan {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: 3px; padding: 28px 24px 26px; position: relative;
}
.plan-featured { background: var(--surface); border-color: var(--ink); }
.plan-flag {
  position: absolute; top: -10px; left: 24px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  background: var(--ink); color: #fff; padding: 3px 9px; border-radius: 2px;
}
.plan h3 { font-size: 15px; font-weight: 700; letter-spacing: 0.01em; margin-bottom: 12px; }
.plan-price { margin: 0 0 6px; display: flex; align-items: baseline; gap: 7px; }
.plan-price .amount {
  font-family: var(--display); font-size: 34px; font-weight: 800;
  font-variation-settings: "wdth" 112; letter-spacing: -0.03em;
}
.plan-price .cadence { font-size: 13px; color: var(--muted); }
.plan-line { font-size: 14px; color: var(--muted); margin: 0 0 20px; min-height: 42px; }
.plan ul { list-style: none; margin: 0 0 24px; padding: 0; }
.plan li {
  display: flex; align-items: center; gap: 9px;
  font-size: 14px; padding: 7px 0; border-top: 1px solid var(--line);
}
.plan li:first-child { border-top: 0; }

/* ---- faq ---- */
.faq { margin-top: 36px; border-top: 1px solid var(--line); max-width: 780px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; padding: 20px 0; font-size: 16px; font-weight: 500;
  list-style: none; display: flex; justify-content: space-between; gap: 20px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; font-family: var(--mono); color: var(--signal); font-size: 18px;
  transition: transform 160ms ease;
}
.faq details[open] summary::after { content: "−"; }
.faq p { margin: -4px 0 22px; font-size: 15px; color: var(--muted); max-width: 66ch; }

/* ---- closer ---- */
.closer {
  background: var(--ink); color: #fff; text-align: center;
  padding: clamp(64px, 9vw, 104px) var(--gutter);
}
.closer h2 {
  font-size: clamp(28px, 4.2vw, 46px); font-weight: 700;
  margin: 0 auto 28px; max-width: 18ch;
}
.closer code { color: var(--signal); font-size: 0.88em; }
.closer .hero-actions { justify-content: center; }

/* ---- footer ---- */
.foot {
  max-width: var(--measure); margin: 0 auto;
  padding: 34px var(--gutter) 56px;
  display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
  font-size: 14px;
}
.foot nav { display: flex; gap: 22px; flex: 1; color: var(--ink-2); }
.foot nav a:hover { color: var(--signal); }
.foot .muted { font-size: 13px; }

/* ---- responsive ---- */
@media (max-width: 940px) {
  .hero { grid-template-columns: 1fr; }
  .strip, .steps, .grid, .uses, .plans { grid-template-columns: 1fr; }
  .strip { border: 1px solid var(--line); border-left: 0; border-right: 0; }
  .bar-nav { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 1ms !important; animation-duration: 1ms !important; }
}