/* ============================================================
   PreArrive — Verdant on white.
   Marketing-only stylesheet (the app/sign surfaces use styles.css).
   Folded from the design's .dir-verdant + .dir-verdant.bg-white scopes.
   Single direction ships, so tokens live straight in :root.
   ============================================================ */

:root {
  /* --- Verdant + bg-white merged tokens --- */
  --c-bg:        #ffffff;
  --c-ink:       #18241c;
  --c-muted:     #56685c;
  --c-line:      #e6e1d3;
  --c-soft:      #f4eee0;       /* warm bone — tinted strips only */
  --c-paper:     #ffffff;       /* cards = page, rely on border/shadow */
  --c-accent:    #1f3a2a;       /* deep forest — CTAs */
  --c-accent-2:  #a8823a;       /* brass — seal accent */
  --c-stamp:     #1f3a2a;
  --c-good:      #355a3c;
  --c-good-soft: #d8e2cf;
  --c-warn:      #9c6112;
  --c-warn-soft: #efdcb6;
  --c-danger:    #9b3e2c;

  --f-display: 'Source Serif 4', ui-serif, 'Times New Roman', serif;
  --f-sans:    'Geist', system-ui, -apple-system, sans-serif;
  --f-mono:    'JetBrains Mono', ui-monospace, monospace;

  --display-tracking: -0.018em;
  --display-leading:  1.06;
  --display-style:    italic;

  --radius:      10px;
  --radius-sm:   8px;
  --radius-pill: 999px;
  --shadow:      0 1px 2px rgba(24,36,28,.04), 0 8px 22px rgba(24,36,28,.07);
  --shadow-card: 0 1px 1px rgba(24,36,28,.03), 0 2px 10px rgba(24,36,28,.05);
  --rule-color:  #d6cfbd;
  --rule-style:  1px solid var(--c-line);
}

/* ---------- shared base ---------- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-sans);
  font-feature-settings: "ss01", "cv11";
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100%;
}

/* ---------- layout ---------- */
.page-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- top nav ---------- */
.topnav {
  border-bottom: var(--rule-style);
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--c-bg);
}
.topnav .topnav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 22px 28px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.015em;
  color: var(--c-ink);
  text-decoration: none;
  cursor: pointer;
}
.brand .mark { width: 36px; height: 36px; }
.foot .brand { font-size: 24px; }
.foot .brand .mark { width: 40px; height: 40px; }
.topnav nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14.5px;
}
.topnav nav a {
  color: var(--c-ink);
  text-decoration: none;
  cursor: pointer;
  opacity: .85;
}
.topnav nav a:hover { opacity: 1; }
.topnav nav a.active { opacity: 1; font-weight: 600; }
.topnav nav a.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--c-accent);
  color: #fff;
  padding: 11px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14.5px;
  opacity: 1;
}
.topnav nav a.cta .arr { width: 14px; height: 14px; flex: 0 0 14px; }
.topnav nav a.cta:hover { filter: brightness(1.07); }
.nav-toggle { display: none; }

/* ---------- hero ---------- */
.hero {
  padding: 84px 0 64px;
  position: relative;
}
.hero.no-rule { border-top: none; }
.hero-top {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero.solo .hero-top { grid-template-columns: 1fr; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-accent-2);
  margin-bottom: 24px;
}
.eyebrow .dot {
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--c-accent-2);
}

h1.t-display {
  font-family: var(--f-display);
  font-size: clamp(40px, 5.5vw, 68px);
  font-weight: 500;
  line-height: var(--display-leading);
  letter-spacing: var(--display-tracking);
  margin: 0 0 24px;
  color: var(--c-ink);
  text-wrap: pretty;
}
h1.t-display em {
  font-style: var(--display-style);
  font-weight: 400;
  color: var(--c-accent-2);
}
.lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--c-muted);
  max-width: 540px;
  margin: 0 0 28px;
}
.ctas {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin: 0 0 32px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  font-family: var(--f-sans);
  border: 1px solid transparent;
  transition: filter .15s ease, transform .12s ease;
}
.btn.primary {
  background: var(--c-accent);
  color: #fff;
}
.btn.primary:hover { filter: brightness(1.07); }
.btn.ghost {
  background: transparent;
  color: var(--c-ink);
  border: 1px solid var(--c-line);
}
.btn.ghost:hover { background: var(--c-soft); }
.btn.link {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--c-accent-2);
  font-weight: 600;
  font-size: inherit;
}
.btn.link:hover { text-decoration: underline; }
.btn .arr {
  width: 14px;
  display: inline-flex;
  transition: transform .15s ease;
}
.btn:hover .arr { transform: translateX(2px); }

.proof {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.proof li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  color: var(--c-ink);
}
.proof li::before {
  content: "\2713";
  color: var(--c-accent-2);
  font-weight: 700;
  margin-top: 1px;
}

/* ---------- hero artifact (paper graphic) ---------- */
.hero-art {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 460px;
  margin-left: auto;
}
.paper {
  position: absolute;
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: 6px;
  box-shadow: var(--shadow);
  padding: 22px 22px 20px;
  font-family: var(--f-sans);
}
.paper.unsigned {
  top: 10%;
  left: 0;
  width: 64%;
  height: 78%;
  transform: rotate(-3.5deg);
  z-index: 1;
  background: #fbf6e8;
}
.paper.signed {
  top: 22%;
  right: 0;
  width: 64%;
  height: 78%;
  transform: rotate(3deg);
  z-index: 2;
}
.paper .ph-head {
  text-align: center;
  border-bottom: 1px solid var(--c-line);
  padding-bottom: 10px;
  margin-bottom: 12px;
}
.paper .ph-rule {
  width: 60%;
  margin: 0 auto 8px;
  border-top: 1px solid var(--rule-color);
}
.paper .ph-mark {
  font-family: var(--f-sans);
  text-transform: uppercase;
  font-style: normal;
  letter-spacing: 0.18em;
  font-weight: 600;
  font-size: 10px;
  color: var(--c-ink);
}
.paper .ph-sub { font-size: 10px; color: var(--c-muted); margin-top: 4px; }
.paper ul.acks { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.paper ul.acks li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  padding: 5px 8px;
  border: 1px solid var(--c-line);
  border-radius: 6px;
  background: #fff;
}
.paper ul.acks li .box {
  width: 12px; height: 12px;
  border: 1px solid var(--c-muted);
  border-radius: 3px;
  flex: 0 0 auto;
}
.paper ul.acks li:nth-child(odd) { background: #faf6ea; }
.paper ul.acks li .label { flex: 1; color: var(--c-ink); }
.paper ul.acks li .price { font-variant-numeric: tabular-nums; color: var(--c-muted); font-size: 10.5px; }

.paper.signed ul.acks li { background: var(--c-good-soft); border-color: rgba(0,0,0,0.06); }
.paper.signed ul.acks li .box {
  background: var(--c-good);
  border-color: var(--c-good);
  position: relative;
}
.paper.signed ul.acks li .box::after {
  content: "";
  position: absolute;
  left: 3px; top: 1.5px;
  width: 4px; height: 7px;
  border: solid #fff;
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(45deg);
}
.paper .sig-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  margin-top: 14px;
  border-top: 1px solid var(--c-line);
  padding-top: 8px;
}
.paper .sig-row svg { flex: 1; height: 22px; }
.paper .sig-row .sig-name { font-family: var(--f-display); font-style: italic; font-size: 11px; color: var(--c-muted); }
.paper-stamp {
  position: absolute;
  top: -14px; right: -14px;
  background: var(--c-stamp);
  color: #fff;
  font-family: var(--f-sans);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.18em;
  padding: 7px 13px;
  border-radius: 999px;
  transform: rotate(8deg);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 3;
  text-transform: uppercase;
}
.paper .hash {
  font-family: var(--f-mono);
  font-size: 9px;
  color: var(--c-muted);
  margin-top: 6px;
}

/* ---------- section scaffolds ---------- */
section.s {
  padding: 72px 0;
  border-top: var(--rule-style);
}
section.s.no-rule { border-top: none; }
section.s.tinted { background: var(--c-soft); border-top: none; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-accent-2);
  margin: 0 0 14px;
}
.section-label .num {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-muted);
}
h2.t-section {
  font-family: var(--f-display);
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: var(--display-tracking);
  margin: 0 0 18px;
  max-width: 760px;
  text-wrap: balance;
}
h2.t-section em { font-style: var(--display-style); color: var(--c-accent-2); font-weight: 400; }
.sub {
  color: var(--c-muted);
  font-size: 17px;
  max-width: 640px;
  margin: 0 0 36px;
}

/* ---------- how it works ---------- */
ol.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  counter-reset: stepc;
}
ol.steps > li {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  box-shadow: var(--shadow-card);
}
ol.steps > li .step-num {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-muted);
  letter-spacing: 0.05em;
}
ol.steps > li strong {
  display: block;
  margin: 10px 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
}
ol.steps > li p {
  margin: 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.5;
}
.step-tile {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--c-accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.step-tile svg { width: 18px; height: 18px; }

/* ---------- image moments ---------- */
.image-moment {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--c-line);
  background: var(--c-soft);
  height: 360px;
}
.image-moment.tall { height: 480px; }
.image-moment img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(.82) contrast(.98);
}
.image-moment .caption {
  position: absolute;
  left: 24px; bottom: 22px;
  font-family: var(--f-display);
  font-style: italic;
  font-size: 18px;
  color: #fff;
  text-shadow: 0 2px 14px rgba(0,0,0,0.5);
  max-width: 60%;
  line-height: 1.3;
}
.image-moment .credit {
  position: absolute;
  right: 16px; bottom: 12px;
  font-size: 11px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.04em;
}

/* small detail grid of three photos */
.detail-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 14px;
  margin-top: 32px;
}
.detail-grid > div {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line);
  aspect-ratio: 4 / 5;
  background: var(--c-soft);
}
.detail-grid > div:first-child { aspect-ratio: auto; }
.detail-grid img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(.84);
}
.detail-grid .pcap {
  position: absolute;
  left: 14px; bottom: 12px;
  font-size: 12px;
  color: rgba(255,255,255,0.92);
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
  letter-spacing: 0.01em;
}

/* ---------- contrast (what it is / isn't) ---------- */
.contrast {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.contrast .col {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}
.contrast .col.is { border-left: 3px solid var(--c-accent-2); }
.contrast .col.isnt { border-left: 3px solid var(--c-line); }
.contrast .col h3 {
  font-family: var(--f-display);
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.contrast .col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.contrast .col ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  color: var(--c-ink);
  line-height: 1.5;
}
.contrast .col.is ul li::before {
  content: "\2713";
  color: var(--c-accent-2);
  font-weight: 700;
  flex: 0 0 auto;
}
.contrast .col.isnt ul li::before {
  content: "\2014";
  color: var(--c-muted);
  flex: 0 0 auto;
}

/* ---------- audience ---------- */
.audience {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.who {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}
.who .who-tile {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--c-soft);
  color: var(--c-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.who .who-tile svg { width: 20px; height: 20px; }
.who .tag {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--c-muted);
  margin-bottom: 6px;
}
.who h3 {
  font-family: var(--f-display);
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 8px;
}
.who p {
  font-size: 14.5px;
  color: var(--c-muted);
  margin: 0 0 14px;
  line-height: 1.55;
}
.who .recommend {
  font-size: 13px;
  color: var(--c-ink);
  margin: 0;
  font-weight: 500;
}

/* ---------- artifact / certificate detail ---------- */
.cert-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.cert-wrap.top { align-items: flex-start; }
.cert-doc {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  padding: 32px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05), 0 14px 36px rgba(0,0,0,0.10);
  position: relative;
  overflow: hidden;
}
.cert-doc::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  pointer-events: none;
  opacity: .65;
}
.cert-doc h4 {
  font-family: var(--f-sans);
  text-transform: uppercase;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.22em;
  margin: 0 0 4px;
}
.cert-doc .meta { font-size: 13px; color: var(--c-muted); margin: 0 0 18px; line-height: 1.5; }
.cert-doc .cert-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--f-mono);
  font-size: 12px;
  padding: 6px 0;
  border-bottom: 1px dotted var(--c-line);
}
.cert-doc .cert-row .l { color: var(--c-muted); }
.cert-doc .cert-row span:last-child { color: var(--c-ink); }
.cert-doc .sig {
  margin: 20px 0 6px;
  padding-top: 10px;
  border-top: 1px solid var(--c-line);
}
.cert-doc .sig svg path { stroke: var(--c-ink); }
.cert-doc .sig .name { font-family: var(--f-display); font-style: italic; font-size: 13px; color: var(--c-muted); margin-top: 2px; }
.cert-doc .hash {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-muted);
  margin-top: 12px;
  word-break: break-all;
}
.cert-doc .corner-stamp {
  position: absolute;
  top: 28px; right: 28px;
  width: 78px; height: 78px;
  border: 1.5px solid var(--c-accent-2);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: var(--c-accent-2);
  font-family: var(--f-sans);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.18em;
  transform: rotate(-8deg);
  text-align: center;
  line-height: 1.2;
}
.cert-doc .corner-stamp span:first-child { font-size: 10px; }
.cert-doc .corner-stamp .date { font-family: var(--f-mono); font-weight: 500; font-size: 8px; margin-top: 2px; letter-spacing: 0.06em; }

/* ---------- pricing ---------- */
.tiers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 28px;
}
.tier {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  position: relative;
}
.tier.featured {
  border-color: var(--c-accent);
  box-shadow: var(--shadow), 0 0 0 1px var(--c-accent);
  background: var(--c-paper);
}
.tier .feat-pill {
  position: absolute;
  top: -12px; left: 22px;
  background: var(--c-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 999px;
}
.tier h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-family: var(--f-sans);
}
.tier .price {
  font-family: var(--f-display);
  font-size: 40px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 4px 0 4px;
}
.tier .price span { font-size: 14px; color: var(--c-muted); font-family: var(--f-sans); font-weight: 500; }
.tier .annual { font-size: 12.5px; color: var(--c-muted); margin: 0 0 4px; }
.tier .cap { font-family: var(--f-mono); font-size: 11px; color: var(--c-muted); margin: 0 0 14px; }
.tier .head {
  font-size: 13.5px;
  color: var(--c-ink);
  margin: 4px 0 18px;
  line-height: 1.45;
  min-height: 60px;
}
.tier ul {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.tier ul li {
  font-size: 13px;
  color: var(--c-ink);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.45;
}
.tier ul li::before {
  content: "+";
  color: var(--c-accent-2);
  font-weight: 700;
}
.tier .btn { width: 100%; justify-content: center; }

/* monthly/annual toggle */
.pricing-toggle {
  display: inline-flex;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  padding: 4px;
  background: var(--c-paper);
}
.pricing-toggle button {
  border: none;
  background: transparent;
  font-family: var(--f-sans);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--c-muted);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  cursor: pointer;
}
.pricing-toggle button.active {
  background: var(--c-accent);
  color: #fff;
}

/* ---------- FAQ ---------- */
.faq {
  border-top: 1px solid var(--c-line);
  max-width: 820px;
}
.faq details {
  border-bottom: 1px solid var(--c-line);
  padding: 18px 0;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
  font-family: var(--f-sans);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev {
  width: 18px; height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--c-muted);
  transition: transform .2s ease;
}
.faq details[open] summary .chev { transform: rotate(180deg); }
.faq p {
  font-size: 14.5px;
  color: var(--c-muted);
  line-height: 1.6;
  margin: 12px 0 0;
  max-width: 700px;
}
.faq em { color: var(--c-ink); font-style: italic; }
.faq a { color: var(--c-accent-2); }

/* ---------- final CTA ---------- */
.final-cta {
  background: var(--c-accent);
  border: 1px solid var(--c-accent);
  border-radius: var(--radius);
  padding: 56px 48px;
  text-align: center;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  color: var(--c-paper);
}
.final-cta h2 {
  font-family: var(--f-display);
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  color: #fff;
}
.final-cta h2 em { font-style: italic; color: var(--c-accent-2); font-weight: 400; }
.final-cta .sub { margin: 0 auto 24px; color: rgba(251,245,230,0.75); }
.final-cta .ctas { justify-content: center; margin: 0; }
.final-cta .btn.ghost { color: #fff; border-color: rgba(251,245,230,0.25); }
.final-cta .btn.ghost:hover { background: rgba(255,255,255,0.06); }

/* ---------- callout (interior pages) ---------- */
.callout {
  background: var(--c-soft);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent-2);
  border-radius: var(--radius);
  padding: 24px 28px;
}
.callout .l {
  display: block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent-2);
  margin-bottom: 8px;
}
.callout p { margin: 0; color: var(--c-ink); font-size: 15px; line-height: 1.6; }
.callout em { font-style: italic; }
.callout code {
  font-family: var(--f-mono);
  font-size: 13px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  padding: 1px 5px;
}
.callout a { color: var(--c-accent-2); }

/* ---------- generic cards used on interior pages ---------- */
.card {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}
.card h3 {
  font-family: var(--f-display);
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 12px;
}

/* trust grid + cards */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.trust-card {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}
.trust-card .trust-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--c-soft);
  color: var(--c-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.trust-card .trust-icon svg { width: 20px; height: 20px; }
.trust-card h3 {
  font-family: var(--f-display);
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 8px;
}
.trust-card p {
  font-size: 14px;
  color: var(--c-muted);
  margin: 0;
  line-height: 1.55;
}

/* hash display */
.hash-display {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--c-ink);
  background: var(--c-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px 20px;
  line-height: 1.7;
  word-break: break-all;
}
.hash-display .l {
  display: block;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 8px;
}

/* interior detail list (how it works stage card) */
.detail-card {
  background: var(--c-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.detail-card h3 {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent-2);
  margin: 0 0 12px;
}
.detail-card ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--c-ink);
  line-height: 1.7;
  font-size: 14px;
}
.stage-tile {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: var(--c-accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.stage-tile svg { width: 22px; height: 22px; }

/* generic text helpers */
.muted { color: var(--c-muted); }
.tiny { font-size: 12.5px; }
.center { text-align: center; }
.body-copy {
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.7;
}
.body-copy strong { color: var(--c-ink); }
section.s ol.numbered {
  padding-left: 1.2rem;
  color: var(--c-ink);
  line-height: 1.8;
}
section.s ol.numbered strong { color: var(--c-ink); }

/* forms */
.form-row { margin-bottom: 16px; }
.form-row label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: 6px;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  font-family: var(--f-sans);
  font-size: 14.5px;
  color: var(--c-ink);
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: 2px solid var(--c-accent-2);
  outline-offset: 1px;
}
.form-row .hint { display: block; font-size: 12.5px; color: var(--c-muted); margin-top: 6px; }

/* info table */
.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.info-table td {
  padding: 10px 0;
  border-bottom: 1px solid var(--c-line);
}
.info-table td:first-child {
  color: var(--c-muted);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  width: 38%;
}

/* ---------- footer ---------- */
.foot {
  padding: 56px 0 32px;
  border-top: var(--rule-style);
  margin-top: 64px;
  color: var(--c-muted);
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 32px;
}
.foot-grid h5 {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin: 0 0 12px;
  font-weight: 500;
}
.foot-grid a {
  display: block;
  font-size: 14px;
  color: var(--c-ink);
  text-decoration: none;
  margin-bottom: 8px;
  opacity: .8;
  cursor: pointer;
}
.foot-grid a:hover { opacity: 1; }
.foot-grid .blurb {
  font-size: 14px;
  color: var(--c-muted);
  max-width: 280px;
  line-height: 1.55;
  margin: 12px 0 0;
}
.foot-bottom {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 24px;
  border-top: var(--rule-style);
  font-size: 13px;
  color: var(--c-muted);
}
.foot-bottom .tag {
  font-family: var(--f-sans);
  font-size: 14px;
}

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero-top { grid-template-columns: 1fr; gap: 36px; }
  .hero-art { margin: 0 auto; }
  ol.steps { grid-template-columns: repeat(2, 1fr); }
  .contrast { grid-template-columns: 1fr; }
  .audience { grid-template-columns: 1fr; }
  .cert-wrap { grid-template-columns: 1fr; }
  .tiers { grid-template-columns: repeat(2, 1fr); }
  .detail-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .topnav nav { gap: 18px; }
}
@media (max-width: 560px) {
  .hero { padding: 56px 0 44px; }
  section.s { padding: 52px 0; }
  ol.steps { grid-template-columns: 1fr; }
  .tiers { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .foot-bottom { flex-direction: column; gap: 8px; }
  .final-cta { padding: 40px 24px; }
  /* collapse the secondary nav links on phones; keep brand + CTA */
  .topnav nav a:not(.cta) { display: none; }
}