/* Nevient. One sales page plus draft legal stubs. System fonts, no external assets, no JS.
   Palette: one ink (blue-black), one warm paper, one accent (deep teal), one support (ochre, tints only: preview strip + draft tags).
   Contrast pairs are computed in qa/check.mjs. Two weights: 400 and 700. Layout: a spec sheet, section labels in a left column on wide screens. */

:root {
  --paper: #f8f2e4;
  --paper-2: #eee5d0;
  --ink: #1b2226;
  --ink-2: #48525a;
  --rule: #d4c8ad;
  --rule-strong: #7d735f;
  --accent: #0d5a56;
  --accent-ink: #f8f2e4;
  --support: #f0dca6;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --measure: 68ch;
  --wrap: 74rem;
  --gut: clamp(1rem, 4.5vw, 2.5rem);
  --tap: 2.75rem; /* 44px */
  --section: clamp(3rem, 2rem + 4vw, 6rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 1.5rem; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 clamp(1.0625rem, 1rem + 0.25vw, 1.125rem)/1.6 var(--sans);
  overflow-wrap: break-word;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.15; margin: 0 0 0.5em; letter-spacing: -0.005em; }
h1 { font-size: clamp(2rem, 1.35rem + 2.9vw, 3.375rem); max-width: 22ch; }
h2 { font-size: clamp(1.5rem, 1.22rem + 1.2vw, 2.125rem); }
h3 { font-size: clamp(1.25rem, 1.16rem + 0.45vw, 1.4375rem); }
p, ul, ol, dl { margin: 0 0 1em; }
p, li, dd { max-width: var(--measure); }
strong, b, th { font-weight: 700; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
code { font-family: var(--mono); font-size: 0.9em; overflow-wrap: anywhere; }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 0.5rem; top: -4rem; z-index: 10; background: var(--ink); color: var(--paper); padding: 0.75rem 1rem; text-decoration: none; }
.skip:focus { top: 0.5rem; }

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

/* preview strip */
.stage { background: var(--support); color: var(--ink); border-bottom: 1px solid var(--rule-strong); font-size: 0.9375rem; }
.stage p { margin: 0; padding: 0.5rem 0; }

/* header */
.site-head { border-bottom: 1px solid var(--rule); }
.site-head .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1.5rem; padding-bottom: 0.25rem; }
.brand { font-family: var(--serif); font-size: 1.5rem; color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; min-height: var(--tap); padding: 0.25rem 0; }
.nav { display: flex; flex-wrap: wrap; gap: 0.5rem 0.75rem; }
.nav a { display: inline-flex; align-items: center; min-height: var(--tap); min-width: var(--tap); padding: 0 0.25rem; font-size: 1rem; }

/* draft wording tag */
.draft-tag { display: inline-block; vertical-align: middle; font: 400 0.875rem/1.3 var(--sans); letter-spacing: 0; color: var(--ink); background: var(--support); border: 1px solid var(--rule-strong); border-radius: 3px; padding: 0.05rem 0.4rem; white-space: nowrap; }
h1 .draft-tag { vertical-align: 0.6em; }

/* hero */
.hero { padding: clamp(1.25rem, 1rem + 2vw, 3.5rem) 0 var(--section); border-bottom: 1px solid var(--rule); }
.hero-grid { display: grid; gap: 1.5rem 3rem; }
.lede { font-size: clamp(1.1875rem, 1.1rem + 0.45vw, 1.375rem); line-height: 1.45; margin-bottom: 0.75rem; }
.for { color: var(--ink-2); margin-bottom: 0; }

/* the one offer box (rendered twice, identical) */
.offer { background: var(--paper-2); border: 1px solid var(--rule-strong); border-radius: 4px; padding: 1rem clamp(1rem, 0.8rem + 1vw, 1.5rem) 1.25rem; align-self: start; }
.offer p { margin-bottom: 0.75rem; }
.body > .offer { max-width: 34rem; margin-bottom: 2rem; }
.offer .status { font-weight: 700; }
.offer .price { font-family: var(--serif); font-size: clamp(1.375rem, 1.25rem + 0.5vw, 1.625rem); line-height: 1.25; }
.buy { display: block; width: 100%; min-height: 3.25rem; margin: 0 0 0.5rem; padding: 0.75rem 1rem;
  font: 700 1.0625rem/1.3 var(--sans); color: var(--ink); background: var(--paper); border: 2px dashed var(--rule-strong); border-radius: 4px; cursor: not-allowed; text-align: center; }
.why { font-size: 0.9375rem; color: var(--ink-2); }
.offer .small { font-size: 0.9375rem; }
.offer .more { margin-bottom: 0; }
.offer .more a { display: inline-flex; align-items: center; min-height: var(--tap); }

/* spec-sheet sections */
.sect { padding: var(--section) 0 0; }
.sect:last-of-type { padding-bottom: var(--section); }
.sect + .sect > .wrap > .sheet { border-top: 1px solid var(--rule); padding-top: var(--section); }
.sect + .sect { padding-top: 0; }
.sheet { display: grid; gap: 0 3rem; }
.sheet > .label h2 { margin-bottom: 0.75rem; }
.sheet > .label p { color: var(--ink-2); font-size: 0.9375rem; }
.body > :last-child { margin-bottom: 0; }

.feats { list-style: none; padding: 0; margin: 0; }
.feats > li { border-top: 1px solid var(--rule); padding: 1rem 0 0.25rem; }
.feats > li:first-child { border-top: 0; padding-top: 0; }
.feats h3 { margin-bottom: 0.35rem; }
.feats p { margin-bottom: 0.6rem; }
.src { font-size: 0.9375rem; color: var(--ink-2); }
.tag-planned { font: 700 0.875rem/1.3 var(--sans); color: var(--ink); border: 1px solid var(--rule-strong); border-radius: 3px; padding: 0.05rem 0.4rem; white-space: nowrap; }

.quote { border-left: 3px solid var(--accent); padding: 0.25rem 0 0.25rem 1rem; margin: 0 0 1rem; font-family: var(--serif); font-size: 1.125rem; }

.box-label { font-weight: 700; margin-bottom: 0.4rem; }
pre.mono { font: 400 0.875rem/1.55 var(--mono); background: var(--paper-2); color: var(--ink); border: 1px solid var(--rule); border-radius: 4px;
  padding: 0.875rem 1rem; margin: 0 0 1rem; white-space: pre-wrap; overflow-wrap: anywhere; max-width: 100%; }

.fields { display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr); gap: 0; margin: 0 0 1rem; max-width: var(--measure); }
.fields dt, .fields dd { border-top: 1px solid var(--rule); padding: 0.5rem 0.75rem 0.5rem 0; margin: 0; }
.fields dt code { font-size: 0.875rem; }
.fields dd { font-size: 0.9375rem; }

.plain { padding-left: 1.25rem; }
.plain li { margin-bottom: 0.4rem; }
.not { list-style: none; padding: 0; }
.not li { padding: 0.4rem 0 0.4rem 0; border-top: 1px solid var(--rule); }
.not li strong { display: inline; }

.faq dt { font-weight: 700; margin-top: 1rem; }
.faq dt:first-child { margin-top: 0; }
.faq dd { margin: 0.25rem 0 0; }

.out { display: inline-flex; align-items: center; min-height: var(--tap); }

/* footer */
.site-foot { border-top: 1px solid var(--rule-strong); background: var(--paper-2); padding: 2rem 0 2.5rem; font-size: 0.9375rem; color: var(--ink-2); }
.site-foot p { margin-bottom: 0.75rem; }
.site-foot .op { color: var(--ink); }
.foot-links { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; }
.foot-links a { display: inline-flex; align-items: center; min-height: var(--tap); }

/* legal stubs + 404 */
.doc { padding: clamp(1.25rem, 1rem + 2vw, 3rem) 0 var(--section); }
.doc h2 { margin-top: 2rem; }
.draft-head { display: inline-block; background: var(--support); border: 1px solid var(--rule-strong); border-radius: 3px; padding: 0.25rem 0.6rem; font-weight: 700; }
.doc .back a { display: inline-flex; align-items: center; min-height: var(--tap); }

@media (min-width: 64em) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) 24rem; align-items: start; }
  .sheet { grid-template-columns: 15rem minmax(0, 1fr); }
  .sheet > .label { padding-top: 0.25rem; }
  .site-foot .wrap { display: flex; justify-content: space-between; align-items: flex-start; gap: 2rem; }
}
@media (max-width: 30em) {
  .fields { grid-template-columns: minmax(0, 1fr); }
  .fields dd { border-top: 0; padding-top: 0; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }
@media print { .stage, .skip, .nav { display: none; } }