/* NiceTokens design samples: shared structural base.
   Identical across all three concept directions on purpose: only the theme
   skin (style.css per sample) differs, so the comparison stays fair. */

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
}

img, svg { display: block; max-width: 100%; height: auto; }

a { color: inherit; }

button, input, select, textarea { font: inherit; color: inherit; }

h1, h2, h3, p, ul, ol, figure { margin: 0; }

ul, ol { padding-left: 1.25em; }

[hidden] { display: none !important; }

.wrap {
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 32px);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--bg);
  border-radius: 0 0 10px 0;
  text-decoration: none;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--focus, var(--accent));
  outline-offset: 2px;
  border-radius: 2px;
}

/* The honesty strip: every sample page states what it is. */
.sample-banner {
  font-size: 12.5px;
  letter-spacing: .01em;
  padding: 8px clamp(16px, 4vw, 32px);
  background: var(--banner-bg);
  color: var(--banner-ink);
  border-bottom: 1px solid var(--banner-line);
}
.sample-banner a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }

.num { font-variant-numeric: tabular-nums; }

code, kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .92em;
}

/* Wide data tables must not break mobile; scroll instead of clipping. */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

footer.site-foot {
  margin-top: clamp(48px, 8vw, 96px);
  padding: 28px 0 40px;
  border-top: 1px solid var(--hairline);
  font-size: 13.5px;
  color: var(--muted);
}
footer.site-foot .foot-line { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: baseline; }
footer.site-foot a { text-underline-offset: 3px; }

/* ---------- Structural skeleton (identical across the three samples) ---------- */

.site-head { border-bottom: 1px solid var(--hairline); }
.head-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; min-height: 60px; }
.brand { font-family: var(--font-head); font-weight: 700; text-decoration: none; letter-spacing: -.01em; }
.site-nav { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.site-nav a { text-decoration: none; padding: 6px 2px; }

.hero { padding: clamp(40px, 7vw, 88px) 0 clamp(32px, 5vw, 64px); }
.hero-grid { display: grid; gap: clamp(24px, 4vw, 56px); grid-template-columns: 1.25fr .85fr; align-items: start; }
.lead { font-size: clamp(17px, 2vw, 20px); line-height: 1.5; margin-top: 14px; }
.sub { margin-top: 12px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.fine { font-size: 13px; margin-top: 12px; }

.strip { padding: 8px 0; }
.strip-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; padding: 18px 0; }
.strip-item { display: flex; flex-direction: column; gap: 2px; }
.strip-num { font-family: var(--font-head); font-weight: 700; font-size: clamp(20px, 2.6vw, 28px); line-height: 1.1; }
.strip-label { font-size: 13px; }

.section-head { max-width: 720px; margin-bottom: 20px; }
.section-head h2 { font-family: var(--font-head); font-size: clamp(24px, 3.4vw, 34px); line-height: 1.15; letter-spacing: -.01em; }
.section-head p { margin-top: 10px; }

.models { padding: clamp(32px, 5vw, 64px) 0; }
.family { margin-top: 26px; }
.family h3 { font-family: var(--font-head); font-size: 18px; display: flex; align-items: baseline; gap: 10px; }
.family-count { font-size: 12.5px; color: var(--muted); font-weight: 400; }
table.data { width: 100%; border-collapse: collapse; min-width: 640px; }
table.data th, table.data td { padding: 10px 12px; text-align: left; vertical-align: top; }
.ta-r { text-align: right; }
.model-id { white-space: nowrap; }

.docs { padding: clamp(32px, 5vw, 64px) 0; }
.docs-grid { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: clamp(24px, 4vw, 56px); align-items: start; }
.docs-body h3 { font-family: var(--font-head); font-size: 19px; margin-top: 34px; scroll-margin-top: 84px; }
.docs-body p { margin-top: 10px; max-width: 68ch; }
.docs-toc { position: sticky; top: 84px; display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.toc-title { font-weight: 600; margin-bottom: 4px; }
pre.code { margin-top: 14px; padding: 16px 18px; overflow-x: auto; font-size: 13px; line-height: 1.6; }

.auth { padding: clamp(32px, 5vw, 64px) 0; }
.auth-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 420px); gap: clamp(24px, 4vw, 56px); align-items: start; }
.auth-copy h2 { font-family: var(--font-head); font-size: clamp(24px, 3.4vw, 32px); }
.auth-copy p { margin-top: 10px; }
.auth-points { margin-top: 16px; display: grid; gap: 8px; }
.tabs { display: flex; gap: 6px; margin-bottom: 18px; }
.tab { flex: 1; }
.auth-form { display: grid; gap: 14px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 13.5px; font-weight: 500; }
.field input { width: 100%; }
.form-note { font-size: 13.5px; padding: 10px 12px; }
.alt-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }

.dashboard { padding: clamp(32px, 5vw, 64px) 0; }
.dash-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.dash-kicker { font-size: 12.5px; letter-spacing: .02em; }
.dash-head h2 { font-family: var(--font-head); font-size: clamp(22px, 3vw, 30px); }
.dash-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(18px, 3vw, 32px); margin-top: 22px; align-items: start; }
.dash-main, .dash-side { display: grid; gap: clamp(16px, 2.4vw, 24px); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card-head h3 { font-family: var(--font-head); font-size: 16.5px; }
.amount { font-family: var(--font-head); font-size: clamp(28px, 4vw, 40px); font-weight: 700; line-height: 1.05; margin-top: 10px; letter-spacing: -.01em; }
.mut { margin-top: 6px; }
.dash-main .btn.small, .dash-actions .btn { margin-top: 14px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.amounts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 24px; margin: 16px 0 4px; }
.amounts dt { font-size: 13px; }
.amounts dd { margin: 2px 0 0; font-size: 18px; font-weight: 600; }
.qr-row { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 20px; align-items: start; margin-top: 16px; }
.qr-row img { width: 100%; max-width: 220px; aspect-ratio: 1; }
.qr-side { display: grid; gap: 10px; font-size: 14px; align-content: start; }
.timer { font-weight: 600; }
.qr-side ol { margin-top: 6px; display: grid; gap: 6px; font-size: 13.5px; }
.checkout-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.history, .usage-list { list-style: none; padding: 0; margin-top: 12px; display: grid; gap: 10px; }
.history li, .usage-list li { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.key-line { margin-top: 10px; }

.start-band { padding: clamp(28px, 4vw, 48px) 0; }
.start-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); gap: clamp(20px, 4vw, 48px); align-items: start; }
.start-copy h2 { font-family: var(--font-head); font-size: clamp(22px, 3vw, 30px); }
.start-list { margin-top: 16px; display: grid; gap: 10px; max-width: 62ch; }
.start-list li::marker { font-weight: 700; }
.start-quote { padding-top: 8px; }
.start-side { border-inline-start: 1px solid var(--hairline); padding-inline-start: clamp(16px, 3vw, 32px); }

@media (max-width: 900px) {
  .hero-grid, .docs-grid, .auth-grid, .dash-grid, .start-grid { grid-template-columns: 1fr; }
  .start-side { border-inline-start: 0; padding-inline-start: 0; }
  .docs-toc { position: static; order: 2; }
  .strip-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 12px; }
}
@media (max-width: 560px) {
  .qr-row { grid-template-columns: 1fr; }
  .qr-row img { max-width: 260px; margin-inline: auto; }
  .amounts { grid-template-columns: 1fr; }
}