/* Soverance.ai - sober infrastructure aesthetic. MOBILE-FIRST.
   Palette: ink #14181D · slate #232A32 · stone paper #F2F3F1 · graphite #1E242B
            oxblood #7A2E2E · mist #8A929C
   Type: system serif display (Iowan/Palatino/Georgia), system sans body, mono labels.
   Signature: the perimeter (double-rule frames, docket-stamp eyebrows).
   Breakpoints: base = phone · 640px = large phone/small tablet · 900px = desktop. */

:root {
  --ink: #14181D;
  --slate: #232A32;
  --paper: #F2F3F1;
  --paper-raised: #FAFAF8;
  --graphite: #1E242B;
  --oxblood: #7A2E2E;
  --oxblood-deep: #5E2222;
  --mist: #8A929C;
  --line: #C9CDC9;
  --line-dark: #3A434D;
  --on-ink: #E8EAE6;
  --on-ink-dim: #9AA3AC;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", "Cascadia Code", "Source Code Pro", Consolas, "Liberation Mono", Menlo, monospace;
  --measure: 62ch;
  --w: 1080px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--graphite);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}
@media (min-width: 640px) { body { font-size: 1.0625rem; } }

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

a { color: var(--oxblood); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--oxblood-deep); }

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

.wrap { max-width: var(--w); margin: 0 auto; padding: 0 20px; }
@media (min-width: 640px) { .wrap { padding: 0 24px; } }

/* ---------- Header ---------- */

.site-header {
  background: var(--ink);
  color: var(--on-ink);
  border-bottom: 1px solid var(--line-dark);
  position: sticky; top: 0; z-index: 50;
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 56px; gap: 16px;
}
.brand {
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: 0.01em;
  color: var(--on-ink);
  text-decoration: none;
  display: flex; align-items: center; gap: 10px;
  padding: 8px 0;
}
.brand:hover { color: #fff; }
.brand .mark { width: 22px; height: 22px; flex: none; }

/* Mobile-first nav: collapsed behind the Menu button by default. */
.nav-toggle {
  display: block;
  background: none; border: 1px solid var(--line-dark); color: var(--on-ink);
  font: inherit; font-size: 0.9rem;
  min-height: 44px; padding: 8px 16px;
  cursor: pointer;
}
.site-nav {
  display: none;
  position: absolute; left: 0; right: 0; top: 56px;
  background: var(--ink);
  border-bottom: 1px solid var(--line-dark);
  flex-direction: column; align-items: stretch; gap: 0;
  padding: 4px 20px 16px;
}
.site-nav.open { display: flex; }
.site-nav a {
  color: var(--on-ink-dim);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  padding: 12px 0;
  min-height: 44px;
  display: flex; align-items: center;
  border-top: 1px solid var(--line-dark);
}
.site-nav a:first-child { border-top: 0; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--on-ink); }
.site-nav .nav-cta {
  color: var(--on-ink);
  border: 1px solid var(--line-dark);
  margin-top: 12px;
  padding: 10px 16px;
  justify-content: center;
}
.site-nav .nav-cta:hover { border-color: var(--on-ink-dim); background: var(--slate); }

@media (min-width: 760px) {
  .site-header .wrap { min-height: 60px; }
  .nav-toggle { display: none; }
  .site-nav {
    display: flex;
    position: static;
    background: none; border: 0; padding: 0;
    flex-direction: row; align-items: center; gap: 26px;
  }
  .site-nav a { padding: 6px 0; border-top: 0; min-height: 0; font-size: 0.9rem; }
  .site-nav .nav-cta { margin-top: 0; padding: 8px 14px; }
}

/* ---------- Docket eyebrow ---------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--oxblood);
  display: block;
  margin-bottom: 12px;
}
.band-dark .eyebrow, .hero .eyebrow, .cta-band .eyebrow { color: #C08A8A; }

/* ---------- Hero ---------- */

.hero {
  background: var(--ink);
  color: var(--on-ink);
  padding: 44px 0 52px;
  border-bottom: 3px solid var(--oxblood);
}
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 36px; align-items: center; }
.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.7rem, 6vw, 2.9rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
  text-wrap: balance;
}
.hero h1 em { font-style: italic; color: #fff; }
.hero .lede {
  color: var(--on-ink-dim);
  font-size: 1.05rem;
  max-width: 56ch;
  margin-bottom: 26px;
}
.hero .lede strong { color: var(--on-ink); font-weight: 500; }

@media (min-width: 900px) {
  .hero { padding: 72px 0 76px; }
  .hero-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 56px; }
  .hero .lede { font-size: 1.1rem; }
}

/* ---------- Buttons ---------- */

.btn {
  display: flex; align-items: center; justify-content: center;
  font-family: var(--sans);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  min-height: 48px;
  padding: 12px 22px;
  border: 1px solid transparent;
  cursor: pointer;
  width: 100%;
  text-align: center;
}
.btn-primary { background: var(--oxblood); color: #F5EFEA; border-color: var(--oxblood); }
.btn-primary:hover { background: var(--oxblood-deep); border-color: var(--oxblood-deep); color: #fff; }
.btn-ghost { background: transparent; color: var(--on-ink); border-color: var(--line-dark); }
.btn-ghost:hover { border-color: var(--on-ink-dim); color: #fff; }
.btn-ghost-light { background: transparent; color: var(--graphite); border-color: var(--line); }
.btn-ghost-light:hover { border-color: var(--mist); }
.btn-row { display: flex; flex-direction: column; gap: 12px; }

@media (min-width: 640px) {
  .btn { display: inline-flex; width: auto; }
  .btn-row { flex-direction: row; flex-wrap: wrap; gap: 14px; }
}

/* ---------- Perimeter diagram ---------- */

.perimeter { display: block; width: 100%; max-width: 380px; margin: 0 auto; }
@media (min-width: 900px) { .perimeter { max-width: 440px; } }
.perimeter text { font-family: var(--mono); }
.diagram-caption {
  margin-top: 12px;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--on-ink-dim);
}
.flow-dot { animation: flow 5.5s linear infinite; }
.flow-dot.d2 { animation-delay: -1.8s; }
.flow-dot.d3 { animation-delay: -3.6s; }
@keyframes flow {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -640; }
}

/* ---------- Sections ---------- */

.section { padding: 52px 0; }
@media (min-width: 760px) { .section { padding: 76px 0; } }
.section + .section { border-top: 1px solid var(--line); }
.section h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.4rem, 5vw, 2.05rem);
  line-height: 1.25;
  letter-spacing: -0.005em;
  margin-bottom: 20px;
  max-width: 26em;
  text-wrap: balance;
}
.section .prose p { max-width: var(--measure); margin-bottom: 18px; }
.section .prose p:last-child { margin-bottom: 0; }
.prose ul { max-width: var(--measure); margin: 0 0 18px 1.2em; }
.prose li { margin-bottom: 10px; }

.band-dark { background: var(--ink); color: var(--on-ink); }
.band-dark.section + .section, .section + .band-dark { border-top: 0; }
.band-dark h2 { color: var(--on-ink); }
.band-dark .prose p { color: var(--on-ink-dim); }
.band-dark .prose strong { color: var(--on-ink); }
.band-dark a:not(.btn) { color: #C99; }
.band-dark a:not(.btn):hover { color: #E0B3B3; }

.small-note { font-size: 0.85rem; color: #5E6670; max-width: var(--measure); }
.band-dark .small-note { color: var(--on-ink-dim); }

/* ---------- The frame (signature) ---------- */

.frame {
  border: 1px solid var(--graphite);
  outline: 1px solid var(--graphite);
  outline-offset: 3px;
  padding: 22px 20px;
  background: var(--paper-raised);
  margin: 8px 4px;
}
@media (min-width: 640px) { .frame { padding: 34px; } }
.band-dark .frame {
  border-color: var(--on-ink-dim);
  outline-color: var(--on-ink-dim);
  background: transparent;
}
.frame > :last-child { margin-bottom: 0; }

/* ---------- Card grids (1 col on phones, widen upward) ---------- */

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 30px;
}
@media (min-width: 640px) {
  .cards.cols-2, .cards.cols-3, .cards.cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
  .cards.cols-4 { grid-template-columns: repeat(4, 1fr); }
}
.card { background: var(--paper-raised); padding: 22px 20px; }
@media (min-width: 640px) { .card { padding: 26px 24px; } }
.card h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.12rem;
  margin-bottom: 10px;
}
.card p { font-size: 0.96rem; color: #454D56; }
.card p + p { margin-top: 10px; }
.card .card-link { display: inline-flex; align-items: center; min-height: 44px; margin-top: 6px; font-size: 0.92rem; }
.card-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
  display: block;
  margin-bottom: 10px;
}
.card.card-accent { border-top: 3px solid var(--oxblood); }

.band-dark .cards { background: var(--line-dark); border-color: var(--line-dark); }
.band-dark .card { background: var(--slate); }
.band-dark .card h3 { color: var(--on-ink); }
.band-dark .card p { color: var(--on-ink-dim); }
.band-dark .card-link { color: #C99; }
.band-dark .card-link:hover { color: #E0B3B3; }

/* ---------- Steps ---------- */

.steps { display: grid; grid-template-columns: 1fr; gap: 24px; margin-top: 32px; }
@media (min-width: 640px) { .steps { grid-template-columns: repeat(2, 1fr); gap: 28px; } }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step { border-top: 2px solid var(--graphite); padding-top: 16px; }
.step .step-n {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--oxblood);
  display: block;
  margin-bottom: 8px;
}
.step h3 { font-family: var(--serif); font-size: 1.08rem; font-weight: 600; margin-bottom: 8px; }
.step p { font-size: 0.95rem; color: #454D56; }
.band-dark .step { border-top-color: var(--on-ink-dim); }
.band-dark .step h3 { color: var(--on-ink); }
.band-dark .step p { color: var(--on-ink-dim); }
.band-dark .step .step-n { color: #C08A8A; }

/* ---------- Pillars ---------- */

.pillars { display: grid; gap: 30px; margin-top: 32px; }
.pillar { border-left: 3px solid var(--oxblood); padding-left: 18px; max-width: 72ch; }
@media (min-width: 640px) { .pillar { padding-left: 24px; } }
.pillar h3 { font-family: var(--serif); font-size: 1.22rem; font-weight: 600; margin-bottom: 10px; }
.pillar p { color: #454D56; }
.band-dark .pillar h3 { color: var(--on-ink); }
.band-dark .pillar p { color: var(--on-ink-dim); }

/* ---------- Definition blocks ---------- */

.points { display: grid; gap: 24px; margin-top: 30px; max-width: 76ch; }
.point h3 { font-family: var(--serif); font-size: 1.12rem; font-weight: 600; margin-bottom: 6px; }
.point p { color: #454D56; font-size: 0.99rem; }
.band-dark .point h3 { color: var(--on-ink); }
.band-dark .point p { color: var(--on-ink-dim); }

/* ---------- Ledger table ---------- */

.ledger { width: 100%; border-collapse: collapse; margin-top: 28px; font-size: 0.92rem; }
@media (min-width: 640px) { .ledger { font-size: 0.97rem; } }
.ledger th, .ledger td { text-align: left; padding: 12px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
@media (min-width: 640px) { .ledger th, .ledger td { padding: 14px 16px; } }
.ledger thead th {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  color: #5E6670;
  border-bottom: 2px solid var(--graphite);
}
.ledger td.num, .ledger th.num { font-family: var(--mono); font-size: 0.88rem; white-space: nowrap; }
.ledger td:first-child { font-family: var(--serif); font-weight: 600; }
.ledger tbody tr:hover { background: var(--paper-raised); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ---------- FAQ strip ---------- */

.faq { display: grid; grid-template-columns: 1fr; gap: 24px; margin-top: 32px; }
@media (min-width: 760px) { .faq { grid-template-columns: repeat(2, 1fr); gap: 26px 48px; } }
.faq div h3 { font-family: var(--serif); font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }
.faq div p { font-size: 0.95rem; color: #454D56; }

/* ---------- CTA band ---------- */

.cta-band { background: var(--ink); color: var(--on-ink); padding: 56px 0; border-top: 3px solid var(--oxblood); }
@media (min-width: 760px) { .cta-band { padding: 80px 0; } }
.cta-band h2 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(1.5rem, 5vw, 2.3rem);
  line-height: 1.22; margin-bottom: 18px; max-width: 24em; text-wrap: balance;
}
.cta-band p { color: var(--on-ink-dim); max-width: var(--measure); margin-bottom: 24px; }
.cta-band a:not(.btn) { color: #C99; }

/* ---------- Forms ---------- */

.form-grid { display: grid; grid-template-columns: 1fr; gap: 18px; margin-top: 28px; max-width: 760px; }
@media (min-width: 640px) { .form-grid { grid-template-columns: 1fr 1fr; gap: 18px 22px; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 0.82rem; font-family: var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--mist); }
.field input, .field select, .field textarea {
  font: inherit; font-size: 1rem; color: var(--graphite);
  background: var(--paper-raised);
  border: 1px solid var(--line);
  min-height: 48px;
  padding: 10px 12px;
  border-radius: 0;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--oxblood); outline: none; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--ink);
  color: var(--on-ink-dim);
  padding: 44px 0 40px;
  border-top: 1px solid var(--line-dark);
  font-size: 0.9rem;
}
@media (min-width: 760px) { .site-footer { padding: 54px 0 44px; } }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 28px; }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; gap: 40px; } }
.site-footer h3 {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; font-weight: 500; color: var(--mist); margin-bottom: 12px;
}
.site-footer a { color: var(--on-ink); }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 4px; }
.site-footer li a { display: inline-flex; align-items: center; min-height: 40px; }
.footer-brand { font-family: var(--serif); font-size: 1.15rem; color: var(--on-ink); margin-bottom: 10px; }
.footer-legal {
  margin-top: 36px; padding-top: 22px;
  border-top: 1px solid var(--line-dark);
  font-size: 0.8rem; color: var(--mist);
  max-width: 90ch;
}
.footer-pledge {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--on-ink-dim);
  border: 1px solid var(--line-dark);
  padding: 12px 14px;
  margin-top: 18px;
  max-width: 52ch;
}

/* ---------- Utilities ---------- */

.center { text-align: center; }
.center h2, .center .prose p, .center p { margin-left: auto; margin-right: auto; }
.mt-lg { margin-top: 40px; }
.two-col { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: start; }
@media (min-width: 800px) { .two-col { grid-template-columns: 1fr 1fr; gap: 48px; } }
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--oxblood); color: #fff; padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- Review fixes (2026-07-04) ---------- */

/* Anchor targets must clear the sticky header */
:target { scroll-margin-top: 80px; }

/* Focus indicator readable on dark surfaces (oxblood fails 3:1 on ink) */
.site-header :focus-visible,
.hero :focus-visible,
.band-dark :focus-visible,
.cta-band :focus-visible,
.site-footer :focus-visible { outline-color: #E8EAE6; }

/* Tier tags: AA contrast on light cards, mist stays on dark */
.card-tag { color: #5E6670; }
.band-dark .card-tag { color: var(--mist); }

/* Footer links up to comfortable touch size */
.site-footer li a { min-height: 44px; }

/* Screen-reader-only content (table captions etc.) */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* Row headers in the pricing ledger */
.ledger tbody th { font-family: var(--serif); font-weight: 600; text-align: left; }