/* NOW OS — official brand design system ("Work Designed")
   Palette: Crimson #D62828 · Graphite #2E2E2E · Charcoal #555555 · Silver #F2F2F2
   plus the logo's slate gray (#7d8a96, the "OS" half of the mark).
   Light chrome by design — the official logo is white-backed and lives on light
   surfaces; dark sections use graphite, never navy.
   Self-contained: system font stack, no CDN, no build step. */

/* Inter — self-hosted (assets/fonts/, latin), no CDN */
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 400; font-display: swap; src: url('fonts/inter-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 600; font-display: swap; src: url('fonts/inter-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 700; font-display: swap; src: url('fonts/inter-latin-700-normal.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 800; font-display: swap; src: url('fonts/inter-latin-800-normal.woff2') format('woff2'); }

:root {
  --crimson: #D62828;
  --crimson-deep: #B71E1E;
  --crimson-on-dark: #F0594A;
  --graphite: #2E2E2E;
  --charcoal: #555555;
  --silver: #F2F2F2;
  --slate: #7d8a96;

  --ink: var(--graphite);          /* headings + dark surfaces */
  --ink-2: #3b3b3b;
  --paper: #ffffff;                /* page background */
  --card: #ffffff;
  --text: var(--graphite);
  --muted: var(--charcoal);
  --line: #e4e4e4;
  --accent: var(--crimson);
  --accent-bright: var(--crimson);
  --accent-ink: var(--crimson-on-dark);   /* accent on dark surfaces */
  --good: #15803d;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(46, 46, 46, .06), 0 8px 24px rgba(46, 46, 46, .07);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "Cascadia Code", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- wordmark lockup (SVG mark + text) ---------- */
.wordmark {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.22rem; letter-spacing: .02em;
  color: var(--graphite); text-decoration: none; white-space: nowrap;
}
.wordmark .mark { width: 30px; height: 30px; flex: none; }
.wordmark .wm { line-height: 1.05; }
.wordmark .wm b { color: var(--slate); font-weight: 800; }
.wordmark small {
  display: block; font-size: .56rem; font-weight: 600; letter-spacing: .14em;
  color: var(--crimson); text-transform: uppercase; margin-top: 2px;
}

/* ---------- navigation (light chrome — the brand's white ground) ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 62px;
}
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a {
  color: var(--charcoal); text-decoration: none; font-size: .92rem; font-weight: 600;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--crimson); }
.nav-cta {
  background: var(--crimson); color: #fff !important;
  padding: 8px 16px; border-radius: 8px; font-weight: 700 !important;
}
.nav-cta:hover { background: var(--crimson-deep); color: #fff !important; }
.nav-toggle { display: none; background: none; border: 0; color: var(--graphite); font-size: 1.5rem; cursor: pointer; }

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 62px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: #fff;
    border-bottom: 1px solid var(--line); padding: 8px 0 16px;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 24px; width: 100%; }
  .nav-cta { margin: 8px 24px 0; width: auto; text-align: center; }
}

/* ---------- hero (light — the logo's home ground) ---------- */
.hero {
  background: linear-gradient(180deg, #ffffff 0%, var(--silver) 100%);
  border-bottom: 1px solid var(--line);
  color: var(--text); padding: 84px 0 68px;
}
.hero .kicker {
  color: var(--crimson); font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; font-size: .8rem; margin: 0 0 14px;
}
.hero h1 {
  color: var(--graphite); font-size: clamp(2rem, 4.6vw, 3.2rem); line-height: 1.14;
  margin: 0 0 20px; font-weight: 800; letter-spacing: -.015em; max-width: 21ch;
}
.hero .lede { font-size: 1.18rem; max-width: 62ch; color: var(--charcoal); margin: 0 0 32px; }
.hero .lede strong { color: var(--graphite); }
.hero-flex { display: flex; align-items: center; gap: 48px; }
.hero-flex > div { flex: 1 1 auto; min-width: 0; }
.hero-logo { flex: 0 0 240px; max-width: 240px; }
.hero-logo img { width: 100%; height: auto; display: block; }
@media (max-width: 860px) { .hero-logo { display: none; } }

.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 9px;
  font-weight: 700; text-decoration: none; font-size: .98rem;
}
.btn-primary { background: var(--crimson); color: #fff; }
.btn-primary:hover { background: var(--crimson-deep); }
.btn-ghost { color: var(--graphite); border: 1.5px solid #c9ced3; }
.btn-ghost:hover { border-color: var(--graphite); }
section.dark .btn-ghost, .hero.dark .btn-ghost { color: #f2f2f2; border-color: rgba(255,255,255,.35); }
section.dark .btn-ghost:hover { border-color: #fff; color: #fff; }
.btn-dark { background: var(--graphite); color: #fff; }
.btn-dark:hover { background: #1f1f1f; }

/* ---------- sections ---------- */
section { padding: 72px 0; }
section.tight { padding: 48px 0; }
section.alt { background: var(--silver); }
section.dark { background: var(--graphite); color: #d9d9d9; }
section.dark h2, section.dark h3 { color: #fff; }

.kicker {
  color: var(--crimson); font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; font-size: .78rem; margin: 0 0 10px;
}
section.dark .kicker { color: var(--crimson-on-dark); }
h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.2; letter-spacing: -.01em;
  color: var(--graphite); margin: 0 0 14px; font-weight: 800; max-width: 30ch;
}
h3 { font-size: 1.15rem; color: var(--graphite); margin: 0 0 8px; font-weight: 700; }
.section-lede { font-size: 1.08rem; color: var(--charcoal); max-width: 68ch; margin: 0 0 36px; }
section.dark .section-lede { color: #b6b6b6; }

/* ---------- stat band ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.stat { background: var(--card); padding: 22px 20px; }
.stat b { display: block; font-size: 1.55rem; color: var(--crimson); font-weight: 800; letter-spacing: -.01em; }
.stat span { font-size: .84rem; color: var(--charcoal); line-height: 1.4; display: block; margin-top: 4px; }
.stat-note { font-size: .8rem; color: var(--muted); margin-top: 12px; }
section.dark .stat-note { color: #b6b6b6; }
section.dark .stat-note a { color: var(--crimson-on-dark); }

/* ---------- cards ---------- */
.grid { display: grid; gap: 20px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
}
.card .tag {
  display: inline-block; font-size: .7rem; font-weight: 800; letter-spacing: .1em;
  text-transform: uppercase; color: var(--crimson); margin-bottom: 10px;
}
.card p { color: var(--charcoal); font-size: .95rem; margin: 0; }
.card p + p { margin-top: 8px; }
section.dark .card { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.13); box-shadow: none; }
section.dark .card p { color: #b6b6b6; }
section.dark .card h3 { color: #fff; }

/* ---------- comparison table ---------- */
.compare { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.compare th, .compare td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; font-size: .95rem; }
.compare th { background: var(--graphite); color: #fff; font-size: .85rem; letter-spacing: .04em; text-transform: uppercase; }
.compare th:first-child { color: #a9a9a9; }
.compare td:first-child { color: var(--charcoal); }
.compare td:last-child { color: var(--graphite); font-weight: 500; }
.compare tr:last-child td { border-bottom: 0; }
.table-scroll { overflow-x: auto; }

/* ---------- layer strip (product family) ---------- */
.layers { display: grid; gap: 12px; }
.layer {
  display: grid; grid-template-columns: 46px 190px 1fr; gap: 18px; align-items: start;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 22px; box-shadow: var(--shadow);
}
.layer .num {
  width: 34px; height: 34px; border-radius: 50%; background: var(--graphite); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .95rem;
}
.layer .name { font-weight: 700; color: var(--graphite); }
.layer .name small { display: block; font-weight: 600; color: var(--crimson); font-size: .78rem; }
.layer p { margin: 0; color: var(--charcoal); font-size: .93rem; }
@media (max-width: 700px) { .layer { grid-template-columns: 40px 1fr; } .layer p { grid-column: 1 / -1; } }

/* ---------- AAA modes (semantic colors, not brand — match the product) ---------- */
.modes { display: grid; grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); gap: 16px; }
.mode { border-radius: var(--radius); padding: 20px; border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow); }
.mode b { display: block; font-size: 1.02rem; color: var(--graphite); margin-bottom: 6px; }
.mode span { font-size: .88rem; color: var(--charcoal); }
.mode.automate { border-top: 3px solid #2563eb; }
.mode.augment  { border-top: 3px solid #7c3aed; }
.mode.assist   { border-top: 3px solid #d97706; }
.mode.human    { border-top: 3px solid var(--good); }

/* ---------- hierarchy ladder ---------- */
.ladder { font-family: var(--mono); font-size: .84rem; line-height: 1.9; color: var(--charcoal); background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px; overflow-x: auto; white-space: nowrap; }
.ladder b { color: var(--graphite); }
.ladder .hot { color: var(--crimson); font-weight: 700; }

/* ---------- prose blocks ---------- */
.prose { max-width: 72ch; }
.prose p { color: var(--text); }
.prose strong { color: var(--graphite); }
blockquote.pull {
  border-left: 3px solid var(--crimson); margin: 28px 0; padding: 6px 0 6px 22px;
  font-size: 1.12rem; color: var(--graphite); font-weight: 500; max-width: 60ch;
}
section.dark blockquote.pull { color: #f2f2f2; }

/* ---------- footer (graphite; text wordmark — the PNG is white-backed) ---------- */
footer { background: var(--graphite); color: #b6b6b6; padding: 48px 0 36px; font-size: .9rem; }
footer .wordmark { color: #fff; }
footer .wordmark .wm b { color: #b8c0c7; }
footer .wordmark small { color: var(--crimson-on-dark); }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: flex-start; }
footer a { color: #d9d9d9; text-decoration: none; }
footer a:hover { color: #fff; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-tag { margin-top: 18px; font-style: italic; color: #9a9a9a; }

/* ---------- misc ---------- */
.pill {
  display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; padding: 3px 10px; border-radius: 999px; vertical-align: middle;
}
.pill.live { background: rgba(21,128,61,.12); color: var(--good); }
.pill.next { background: rgba(214,40,40,.1); color: var(--crimson); }
hr.sep { border: 0; border-top: 1px solid var(--line); margin: 0; }
.footnote { font-size: .82rem; color: var(--muted); }
section.dark .footnote { color: #b6b6b6; }

/* ---------- product screenshots (framed in browser chrome) ---------- */
.shot {
  border-radius: 12px; overflow: hidden; background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 2px 6px rgba(46,46,46,.08), 0 24px 60px rgba(46,46,46,.14);
}
.shot .chrome {
  display: flex; align-items: center; gap: 6px; padding: 10px 14px;
  background: var(--silver); border-bottom: 1px solid var(--line);
}
.shot .chrome i { width: 10px; height: 10px; border-radius: 50%; background: #d5d9dd; display: block; }
.shot .chrome i:first-child { background: #e9a9a9; }
.shot .chrome span {
  margin-left: 10px; font-size: .72rem; color: #8a8a8a; font-weight: 600;
  background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 2px 12px;
}
.shot img { display: block; width: 100%; height: auto; }
.shot-caption { font-size: .85rem; color: var(--charcoal); margin-top: 12px; }
.shot-caption b { color: var(--graphite); }

.showcase { display: grid; gap: 40px; }
.showcase-item { display: grid; grid-template-columns: minmax(260px, 5fr) 7fr; gap: 36px; align-items: center; }
.showcase-item.flip { grid-template-columns: 7fr minmax(260px, 5fr); }
.showcase-item.flip .showcase-text { order: 2; }
@media (max-width: 860px) {
  .showcase-item, .showcase-item.flip { grid-template-columns: 1fr; }
  .showcase-item.flip .showcase-text { order: 0; }
}
.showcase-text h3 { font-size: 1.3rem; }
.showcase-text p { color: var(--charcoal); font-size: .97rem; }

/* ---------- diagrams ---------- */
.diagram { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
.diagram img { display: block; width: 100%; height: auto; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; max-width: 800px; }
.faq details {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 4px 22px; box-shadow: var(--shadow);
}
.faq summary {
  cursor: pointer; font-weight: 700; color: var(--graphite); padding: 14px 0;
  list-style: none; position: relative; padding-right: 28px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+'; position: absolute; right: 2px; top: 50%; transform: translateY(-50%);
  color: var(--crimson); font-size: 1.3rem; font-weight: 700;
}
.faq details[open] summary::after { content: '–'; }
.faq details p { color: var(--charcoal); font-size: .95rem; margin: 0 0 16px; }

/* ---------- contact form ---------- */
.contact-grid { display: grid; grid-template-columns: 7fr 4fr; gap: 40px; align-items: start; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-form { display: grid; gap: 16px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.contact-form .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .contact-form .field-row { grid-template-columns: 1fr; } }
.contact-form label { display: grid; gap: 6px; font-size: .88rem; font-weight: 700; color: var(--graphite); }
.contact-form input, .contact-form select, .contact-form textarea {
  padding: 11px 13px; border-radius: 8px; border: 1px solid #c9ced3; background: #fff;
  color: var(--graphite); font-size: .98rem; font-family: var(--font); outline: none; font-weight: 400;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--crimson); }
.contact-form textarea { resize: vertical; }
.contact-form .hp { position: absolute; left: -9999px; height: 0; overflow: hidden; margin: 0; }
.contact-aside .card h3 { font-size: 1.02rem; }

/* ---------- survey (the five-question reality check) ---------- */
.q { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px 12px; margin: 0; }
.q legend { font-size: .98rem; color: var(--graphite); padding: 0 8px; font-weight: 400; }
.q legend b { color: var(--crimson); }
.q .opt { display: flex; align-items: baseline; gap: 10px; font-weight: 400; font-size: .95rem; color: var(--text); padding: 7px 0; cursor: pointer; }
.q .opt input { accent-color: var(--crimson); }
.q .why { font-size: .8rem; color: var(--muted); border-top: 1px dashed var(--line); padding-top: 10px; margin: 10px 0 4px; }
.q .why a { color: var(--crimson); text-decoration: none; }
.survey-result {
  background: var(--silver); border-left: 3px solid var(--crimson); border-radius: 8px;
  padding: 14px 18px; font-size: .95rem; color: var(--graphite); margin: 0;
}

/* ---------- motion (reveal on scroll; disabled for reduced-motion) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in { opacity: 1; transform: none; }
  .card, .res, .shot { transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
  .card:hover { transform: translateY(-3px); }
  .shot:hover { transform: translateY(-4px); }
}