/* Apex Reliability Engineering — site stylesheet
   Brand preserved from the live site; contrast-safe accents; no UI-kit leftovers. */

@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("/fonts/archivo.woff2") format("woff2");
}
@font-face {
  font-family: "Audiowide";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/audiowide.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/ibm-plex-mono-500.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/ibm-plex-mono-600.woff2") format("woff2");
}

:root {
  --ink: #14181d;
  --navy: #0d0f12;
  --paper: #f4f5f6;
  --white: #ffffff;
  --line: #d9dcdf;
  --accent: #3a6595;
  --accent-dark: #2e5279;
  --accent-on-dark: #8bb4de;
  --muted: #3e4751;
  --on-dark: #e8edf3;
  --on-dark-muted: #c9d2dc;
  --on-dark-subtle: #aeb8c4;
  --focus: #c9a227;
  --error: #8b2e2e;
  --ok: #1f6b4a;
  --font: "Archivo", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", "Segoe UI Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { margin: 0; background: var(--navy); color: var(--ink); scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); font-size: 16px; line-height: 1.6; background: var(--paper); color: var(--ink); }
img, svg { max-width: 100%; height: auto; }
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.skip-link {
  position: absolute; left: 16px; top: -40px; z-index: 100;
  background: var(--white); color: var(--ink); padding: 8px 14px; font-weight: 700; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.site { background: var(--paper); color: var(--ink); min-height: 100vh; display: flex; flex-direction: column; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 32px; }
.mono { font-family: var(--mono); font-size: 12px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3, h4, p, ul, ol, blockquote, figure { margin: 0; }
main { flex: 1; }

/* NAV */
.site-nav {
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: 14px 32px; background: var(--navy); border-bottom: 1px solid rgba(255,255,255,.09);
  position: relative; z-index: 20;
}
.site-nav .brand { display: block; flex-shrink: 0; color: inherit; }
.site-nav .logo-nav { height: 46px; width: auto; display: block; }
.nav-toggle {
  display: none; background: transparent; border: 1px solid rgba(255,255,255,.35);
  color: #fff; padding: 8px 12px; font: 600 14px var(--font); cursor: pointer;
}
.nav-toggle .bars { display: block; }
.site-nav .links { display: flex; gap: 8px 24px; font-size: 14px; font-weight: 500; align-items: center; flex-wrap: wrap; }
.site-nav .links > a,
.site-nav .links .drop > button {
  color: var(--on-dark-muted); text-decoration: none; background: none; border: 0;
  font: inherit; font-weight: 500; cursor: pointer; padding: 6px 0; display: inline-flex; align-items: center; gap: 6px;
}
.site-nav .links > a:hover,
.site-nav .links .drop > button:hover { color: #fff; }
.site-nav .links a[aria-current="page"] { color: #fff; }
.site-nav .links a.cta {
  background: var(--accent); color: #fff; padding: 9px 18px; font-weight: 600;
}
.site-nav .links a.cta:hover { background: var(--accent-dark); color: #fff; }
.drop { position: relative; }
.drop > button::after { content: "▾"; font-size: 10px; opacity: .85; }
.drop-menu {
  display: none; position: absolute; top: calc(100% + 8px); left: 0; min-width: 260px;
  background: #161b21; border: 1px solid rgba(255,255,255,.12); padding: 8px 0; z-index: 30;
}
.drop:hover .drop-menu,
.drop:focus-within .drop-menu,
.drop.open .drop-menu { display: block; }
.drop-menu a {
  display: block; padding: 8px 16px; color: var(--on-dark-muted); text-decoration: none; font-weight: 500;
}
.drop-menu a:hover, .drop-menu a:focus { color: #fff; background: rgba(255,255,255,.06); }

/* HERO */
.hero, .page-hero {
  background: var(--navy); color: #fff; position: relative; overflow: hidden;
}
.hero { padding: 72px 0 64px; }
.page-hero { padding: 56px 0 48px; }
.hero::before, .page-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 56px 56px;
}
.hero .wrap, .page-hero .wrap { position: relative; }
.hero .mono, .page-hero .mono { color: var(--accent-on-dark); margin-bottom: 18px; }
.hero h1 { font-size: 52px; line-height: 1.05; font-weight: 800; letter-spacing: -.015em; max-width: 18ch; color: #fff; }
.hero h1 em { font-style: normal; color: var(--accent-on-dark); }
.page-hero h1 { font-size: 44px; font-weight: 800; letter-spacing: -.015em; line-height: 1.1; max-width: 22ch; color: #fff; }
.hero .sub, .page-hero .sub { margin-top: 20px; font-size: 18px; line-height: 1.6; color: var(--on-dark-muted); max-width: 60ch; }
.page-hero .sub { font-size: 17px; }
.crumbs { margin-bottom: 16px; font-size: 13px; color: var(--on-dark-subtle); }
.crumbs a { color: var(--accent-on-dark); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; color: #fff; }
.crumbs ol { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs li:not(:last-child)::after { content: "/"; margin-left: 6px; color: var(--on-dark-subtle); }

.cta-row { margin-top: 36px; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.btn {
  background: var(--accent); color: #fff; padding: 15px 28px; font-weight: 700; font-size: 15px;
  text-decoration: none; display: inline-block; border: 0; cursor: pointer; font-family: inherit;
}
.btn:hover { background: var(--accent-dark); color: #fff; }
.btn.ghost { background: transparent; border: 1px solid rgba(255,255,255,.45); color: #fff; font-weight: 500; }
.btn.ghost:hover { background: rgba(255,255,255,.08); color: #fff; }
.btn.dark { background: var(--navy); color: #fff; }
.btn.dark:hover { background: #000; color: #fff; }
.btn.outline { background: transparent; border: 1px solid var(--accent); color: var(--accent); }
.btn.outline:hover { background: var(--accent); color: #fff; }

.proof { margin-top: 48px; display: flex; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.16); padding-top: 24px; }
.proof > div { padding-right: 36px; margin-right: 36px; border-right: 1px solid rgba(255,255,255,.16); margin-bottom: 12px; }
.proof > div:last-child { border: none; }
.proof .mono { color: var(--on-dark-subtle); margin-bottom: 6px; }
.proof b { font-size: 15px; font-weight: 600; color: var(--on-dark); }

/* SECTIONS */
.section { padding: 72px 0; }
.section.tight { padding: 56px 0; }
.section.alt { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { margin-bottom: 40px; }
.sec-head .mono { color: var(--accent); }
h2 { font-size: 34px; font-weight: 800; letter-spacing: -.01em; line-height: 1.15; margin-top: 8px; max-width: 28ch; color: var(--ink); }
.lead { font-size: 17px; color: var(--muted); max-width: 62ch; margin-top: 14px; }

/* CARDS */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--line); border: 1px solid var(--line); }
.cards.two, .two { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: var(--line); border: 1px solid var(--line); }
.cards.four { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--white); padding: 30px 26px 34px; display: flex; flex-direction: column; }
.card .mono { color: var(--muted); margin-bottom: 16px; }
.card h3, .card h2 { font-size: 20px; font-weight: 700; margin: 0 0 12px; line-height: 1.3; max-width: none; }
.card p { font-size: 15px; line-height: 1.65; color: var(--muted); flex: 1; }
.card .foot { margin-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 14px; gap: 12px; }
.card .foot b { font-size: 16px; color: var(--ink); }
.card .foot a { color: var(--accent); font-weight: 600; text-decoration: none; }
.card .foot a:hover { color: var(--accent-dark); text-decoration: underline; }
.aud .card blockquote { font-size: 21px; font-weight: 700; line-height: 1.35; letter-spacing: -.01em; margin: 10px 0 14px; flex: none; color: var(--ink); }
.aud .card .who { color: var(--accent); }

.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.split.top { align-items: start; }
.split p { color: var(--muted); margin-top: 16px; font-size: 16px; line-height: 1.7; }
.split .mono { color: var(--accent); }
.textlink { color: var(--accent); font-weight: 600; text-decoration: none; }
.textlink:hover { color: var(--accent-dark); text-decoration: underline; }
.statbox { border: 1px solid var(--ink); padding: 28px; background: var(--white); }
.statbox .row { display: flex; justify-content: space-between; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.statbox .row:last-child { border: none; }
.statbox .row .mono { color: var(--muted); }
.statbox .row b { font-weight: 700; text-align: right; color: var(--ink); }

.dark { background: var(--navy); color: #fff; }
.dark h2 { color: #fff; }
.dark p, .dark .lead { color: var(--on-dark-muted); }
.dark .mono { color: var(--accent-on-dark); }
.dark .card { background: #161b21; }
.dark .card h3, .dark .card h2, .dark .card .foot b { color: #fff; }
.dark .card p { color: var(--on-dark-muted); }
.dark .cards, .dark .two { background: #2a313a; border-color: #2a313a; }
.svc { list-style: none; padding: 0; }
.svc li { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.14); display: flex; justify-content: space-between; align-items: baseline; gap: 20px; font-size: 16px; font-weight: 600; }
.svc li a { color: #fff; text-decoration: none; }
.svc li a:hover { color: var(--accent-on-dark); }
.svc li .mono { color: var(--on-dark-subtle); flex-shrink: 0; }
.svc li small { display: block; font-weight: 400; color: var(--on-dark-subtle); font-size: 13px; margin-top: 4px; }

.steps { counter-reset: s; list-style: none; padding: 0; }
.steps li { counter-increment: s; padding: 18px 0 18px 56px; position: relative; border-bottom: 1px solid var(--line); font-size: 16px; }
.steps li:last-child { border: none; }
.steps li::before {
  content: counter(s, decimal-leading-zero); position: absolute; left: 0; top: 16px;
  font-family: var(--mono); font-size: 13px; color: var(--accent); letter-spacing: .1em;
}
.steps li b { display: block; font-weight: 700; margin-bottom: 4px; color: var(--ink); }
.steps li span, .steps li p { color: var(--muted); font-size: 15px; }

.about-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; }
.about-grid blockquote { font-size: 26px; line-height: 1.4; font-weight: 600; letter-spacing: -.01em; color: var(--ink); }
.about-grid blockquote span { color: var(--accent); }
.about-grid p { font-size: 16px; line-height: 1.75; color: var(--muted); margin-bottom: 16px; }
.creds { border: 1px solid var(--ink); background: var(--white); padding: 22px 24px; margin: 26px 0; }
.creds .mono { color: var(--accent); margin-bottom: 10px; }
.creds p { font-size: 15px; margin: 0 0 8px; color: var(--muted); }
.gear { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.gear span { border: 1px solid var(--line); background: var(--white); padding: 7px 12px; font-size: 13px; color: var(--muted); }

.final { background: var(--accent); color: #fff; text-align: center; padding: 80px 0; }
.final .mono { color: #e8f0f8; }
.final h2 { margin: 8px auto 32px; max-width: 22ch; color: #fff; }
.final p { color: #e8f0f8; margin: 0 auto 24px; max-width: 56ch; }

.site-footer { background: var(--navy); color: var(--on-dark-subtle); padding: 32px; font-size: 13px; }
.site-footer .foot-grid { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; max-width: 1120px; margin: 0 auto; }
.site-footer a { color: var(--on-dark-muted); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer .legal-links { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.site-footer .conf { flex-basis: 100%; margin-top: 8px; }

/* PROSE */
.prose { max-width: 72ch; }
.prose h2 { font-size: 26px; margin: 36px 0 12px; max-width: none; }
.prose h3 { font-size: 20px; font-weight: 700; margin: 28px 0 10px; color: var(--ink); }
.prose p, .prose li { font-size: 16px; line-height: 1.75; color: var(--ink); }
.prose p + p { margin-top: 14px; }
.prose ul, .prose ol { margin: 12px 0 16px; padding-left: 22px; }
.prose li { margin: 6px 0; color: var(--ink); }
.prose li::marker { color: var(--accent); }
.prose a { color: var(--accent); font-weight: 600; }
.prose .note, .callout, .banner {
  border: 1px solid var(--ink); background: var(--white); padding: 16px 18px; margin: 20px 0; font-size: 15px;
}
.callout .mono, .banner .mono { color: var(--accent); margin-bottom: 6px; }
.formula {
  font-family: var(--mono); font-size: 14px; letter-spacing: 0; text-transform: none; font-weight: 500;
  background: var(--white); border: 1px solid var(--line); padding: 12px 16px; margin: 14px 0; overflow-x: auto;
  color: var(--ink);
}
table.data { width: 100%; border-collapse: collapse; font-size: 15px; margin: 16px 0 24px; background: var(--white); }
table.data th, table.data td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.data th { font-size: 12px; font-family: var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
table.data caption { text-align: left; font-weight: 700; margin-bottom: 8px; color: var(--ink); }

/* FAQ */
.faq { margin-top: 16px; }
.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 700; color: var(--ink); list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+"; color: var(--accent); font-family: var(--mono); margin-right: 10px; }
.faq details[open] summary::before { content: "–"; }
.faq details p { margin-top: 10px; color: var(--muted); }

/* FORMS */
form.std { max-width: 640px; }
.field { margin: 0 0 16px; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.field .hint { display: block; font-size: 13px; color: var(--muted); font-weight: 400; margin-top: 4px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 12px; font: 16px var(--font); color: var(--ink);
  background: var(--white); border: 1px solid #8a929b;
}
.field textarea { min-height: 140px; resize: vertical; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.consent { display: flex; gap: 10px; align-items: flex-start; margin: 12px 0 20px; font-size: 14px; color: var(--ink); }
.consent input { margin-top: 3px; }
.form-status[aria-live] { margin-top: 12px; font-weight: 600; }
.form-status.error { color: var(--error); }
.form-status.ok { color: var(--ok); }
.mailto-fallback { margin-top: 16px; font-size: 14px; color: var(--muted); }

/* CALCULATOR */
.calc { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.calc-panel { background: var(--white); border: 1px solid var(--line); padding: 24px; }
.calc-panel h2 { font-size: 20px; margin: 0 0 16px; }
.calc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.calc-modes { overflow-x: auto; }
.calc-modes table { min-width: 640px; }
.calc .result { font-size: 28px; font-weight: 800; letter-spacing: -.02em; color: var(--ink); }
.calc .result-label { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.disclaimer { border-left: 4px solid var(--accent); background: #eef3f8; padding: 12px 16px; margin: 16px 0; font-size: 15px; color: var(--ink); }
.chart { width: 100%; height: auto; background: var(--white); border: 1px solid var(--line); margin: 12px 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* MISC */
.price { font-size: 28px; font-weight: 800; letter-spacing: -.02em; color: var(--ink); }
.price small { font-size: 14px; font-weight: 500; color: var(--muted); }
.how-strip .cards { margin-top: 24px; }
.sticky-cta {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
  background: var(--navy); padding: 10px 16px 12px; border-top: 1px solid rgba(255,255,255,.12);
  justify-content: center;
}
.sticky-cta .btn { width: 100%; text-align: center; }
.draft-banner { background: #f3ead2; color: var(--ink); padding: 10px 16px; font-size: 14px; text-align: center; border-bottom: 1px solid #d8c58a; }
.logo-hero { height: 150px; width: auto; display: block; margin-bottom: 40px; }

@media (max-width: 860px) {
  .wrap { padding: 0 20px; }
  .site-nav { padding: 12px 16px; flex-wrap: wrap; }
  .nav-toggle { display: inline-block; margin-left: auto; }
  .site-nav .links {
    display: none; flex-basis: 100%; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 0 8px;
  }
  .site-nav.nav-open .links { display: flex; }
  .site-nav .links > a, .site-nav .links .drop > button { padding: 10px 0; }
  .drop-menu { position: static; border: 0; background: transparent; padding: 0 0 8px 12px; }
  .hero { padding: 48px 0 40px; }
  .hero h1 { font-size: 34px; }
  .page-hero { padding: 40px 0 36px; }
  .page-hero h1 { font-size: 30px; }
  h2 { font-size: 26px; }
  .cards, .cards.two, .two, .cards.four, .split, .about-grid, .calc, .calc-row { grid-template-columns: 1fr; }
  .split { gap: 28px; }
  .proof > div { padding-right: 20px; margin-right: 20px; }
  .sticky-cta { display: flex; }
  body { padding-bottom: 72px; }
  .logo-hero { height: 110px; }
}

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