/* quanttyos.com — visual from docs/mockups/site (#793); tokens follow the Quantty design system (docs/mockups/v3/_ds). */

@font-face { font-family: "IBM Plex Sans"; font-weight: 400; font-display: swap; src: url("/fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 500; font-display: swap; src: url("/fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 600; font-display: swap; src: url("/fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 400; font-display: swap; src: url("/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 500; font-display: swap; src: url("/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); }

:root {
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;

  /* dark (default, as in the mockup) */
  --bg: #1b202a;
  --paper: #222936;
  --side: #191f2a;
  --ink: #e6ebf5;
  --muted: #a6b2c7;
  --line: #384253;
  --blue: #8aa9ff;
  --on-blue: #162440;
  --soft: #2b3d64;
  --green: #8fceb7;
  --red: #eea0a6;
  --amber: #e2b96d;
  --cyan: #86d3dc;
  --shadow: 0 30px 80px rgb(0 0 0 / 0.28);

  --radius-sm: 4px;
  --radius-md: 5px;
  --radius-lg: 6px;
  --radius-xl: 10px;
  --max: 1200px;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f9fc;
    --paper: #ffffff;
    --side: #edf1f7;
    --ink: #202b3d;
    --muted: #5a667d;
    --line: #dce3ee;
    --blue: #315ed4;
    --on-blue: #ffffff;
    --soft: #e6edff;
    --green: #296c58;
    --red: #a3434c;
    --amber: #8a5a12;
    --cyan: #1d6f7a;
    --shadow: 0 24px 60px rgb(32 43 61 / 0.12);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 var(--font-sans);
}
main { flex: 1 0 auto; }
a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 3px; }
code, .mono { font-family: var(--font-mono); }
code { font-size: 14px; background: var(--side); border: 1px solid var(--line); padding: 1px 5px; border-radius: var(--radius-sm); }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; background: var(--paper); padding: 8px 12px; z-index: 10; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* header */
.site-header { border-bottom: 1px solid var(--line); background: var(--side); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding-top: 14px; padding-bottom: 14px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 18px; letter-spacing: -0.3px; color: var(--ink); text-decoration: none; }
.logo { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 6px; background: var(--blue); color: var(--bg); font: 500 18px/1 var(--font-mono); }
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 20px; font-size: 14px; }
.nav a { color: var(--muted); text-decoration: none; padding: 12px 4px; }
.nav a:hover { color: var(--ink); }
.nav .lang { font-family: var(--font-mono); font-size: 12px; }
.nav .lang span { color: var(--ink); }
.nav .cta { display: inline-flex; align-items: center; min-height: 44px; padding: 10px 16px; border-radius: var(--radius-md); background: var(--blue); color: var(--on-blue); font-weight: 500; }
.nav .cta:hover { color: var(--on-blue); filter: brightness(1.08); }

/* buttons */
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border: 0; border-radius: var(--radius-md); background: var(--blue); color: var(--on-blue); font: 500 15px/1.2 var(--font-sans); text-decoration: none; cursor: pointer; }
.button:hover { color: var(--on-blue); filter: brightness(1.08); }
.button:disabled { opacity: 0.6; cursor: progress; }
.button.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.button.ghost:hover { background: var(--soft); filter: none; }

/* hero */
.hero { padding: 88px 0 72px; }
.hero .wrap { display: flex; flex-wrap: wrap; gap: 56px; align-items: center; }
.hero-copy { flex: 1 1 440px; min-width: 0; }
.hero-figure { flex: 1 1 480px; min-width: 0; margin: 0; }
.eyebrow { margin: 0 0 18px; font: 13px/1.4 var(--font-mono); color: var(--cyan); letter-spacing: 0.4px; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(38px, 5.2vw, 62px); line-height: 1.06; font-weight: 600; letter-spacing: -1.6px; }
.lede { margin: 24px 0 0; font-size: 19px; color: var(--muted); max-width: 540px; }
.lede strong { color: var(--ink); font-weight: 500; }
.pills { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 8px; }
.verdict { display: inline-block; font: 500 13px/1.4 var(--font-mono); letter-spacing: 0.04em; padding: 5px 10px; border-radius: var(--radius-sm); border: 1px solid currentColor; }
.verdict.rejected { color: var(--red); }
.verdict.survived { color: var(--green); }
.verdict.inconclusive { color: var(--amber); }
.hero .waitlist-form { margin-top: 34px; max-width: 520px; }
.note { margin: 10px 0 0; font-size: 13px; color: var(--muted); }

/* report card (illustration) */
.report { border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--paper); overflow: hidden; box-shadow: var(--shadow); }
.report-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--side); font-size: 13px; font-weight: 500; }
.tag { font: 11px/1.4 var(--font-mono); color: var(--muted); border: 1px solid var(--line); padding: 2px 7px; border-radius: var(--radius-sm); font-weight: 400; }
.report-body { padding: 20px; }
.report .k { margin: 0; font: 12px/1.4 var(--font-mono); color: var(--muted); }
.report .claim { margin: 6px 0 18px; font-size: 15px; }
.report-verdict { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px; border-radius: var(--radius-lg); border: 1px solid var(--red); }
.report-verdict .big { font: 500 20px/1.2 var(--font-mono); color: var(--red); letter-spacing: 1px; }
.report-verdict .sub { font-size: 13px; color: var(--muted); }
.checks { list-style: none; margin: 16px 0 0; padding: 0; font-size: 14px; }
.checks li { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-top: 1px solid var(--line); }
.checks .v { font: 12px/1.6 var(--font-mono); white-space: nowrap; color: var(--muted); }
.checks .fail { color: var(--red); }
.checks .pass { color: var(--green); }
.figcap { margin-top: 10px; font-size: 12px; color: var(--muted); }

/* sections */
section.block { border-top: 1px solid var(--line); padding: 80px 0; }
section.alt { background: var(--side); }
h2.section { margin: 0; font-size: clamp(28px, 3.4vw, 38px); line-height: 1.2; font-weight: 600; letter-spacing: -0.8px; }
.section-lede { margin: 12px 0 0; color: var(--muted); max-width: 620px; }

.steps { list-style: none; margin: 44px 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.steps li { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); padding: 22px; }
.step-n { display: block; font: 13px/1.4 var(--font-mono); color: var(--blue); }
.steps h3 { margin: 10px 0 8px; font-size: 18px; font-weight: 600; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }

.verdicts { margin-top: 40px; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.verdicts article { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); padding: 24px; }
.verdicts article.rejected { border-top: 3px solid var(--red); }
.verdicts article.survived { border-top: 3px solid var(--green); }
.verdicts article.inconclusive { border-top: 3px solid var(--amber); }
.verdicts .verdict { border: 0; padding: 0; font-size: 16px; letter-spacing: 1px; }
.verdicts p { margin: 12px 0 0; color: var(--muted); }

.grid { margin-top: 40px; display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 12px; }
.feature { display: flex; gap: 14px; padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); }
.feature::before { content: ""; flex: none; width: 8px; height: 8px; margin-top: 9px; border-radius: 2px; background: var(--cyan); }
.feature h3 { margin: 0; font-size: 16px; font-weight: 600; }
.feature p { margin: 2px 0 0; color: var(--muted); font-size: 15px; }

/* faq */
.faq .wrap { max-width: 820px; }
.faq-list { margin-top: 28px; border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 44px; padding: 18px 0; font-weight: 500; font-size: 17px; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: ""; flex: none; width: 8px; height: 8px; margin-right: 6px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(-45deg); transition: transform 0.15s; }
details[open] summary::after { transform: rotate(45deg); }
details p { margin: 0 0 20px; color: var(--muted); }
.faq-more { margin: 28px 0 0; color: var(--muted); }

/* waitlist */
.waitlist .wrap { max-width: 720px; text-align: center; }
.waitlist h2.section { font-size: clamp(28px, 3.4vw, 40px); }
.waitlist .section-lede { margin: 14px auto 0; max-width: 520px; }
.waitlist .waitlist-form { margin: 30px auto 0; max-width: 520px; }
.waitlist-form form { display: flex; flex-wrap: wrap; gap: 10px; }
.waitlist-form input[type=email] { flex: 1 1 240px; min-width: 0; min-height: 48px; padding: 0 14px; border-radius: var(--radius-md); border: 1px solid var(--line); background: var(--paper); color: var(--ink); font: 15px/1.4 var(--font-sans); }
.waitlist-form input[type=email]::placeholder { color: var(--muted); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.status { margin: 12px 0 0; font-size: 14px; }
.status:empty { margin: 0; }
.status.ok { color: var(--green); font-weight: 500; }
.status.err { color: var(--red); }
.fine { margin: 14px 0 0; font-size: 13px; color: var(--muted); }

/* legal pages */
.legal { padding: 64px 0 88px; }
.legal .wrap { max-width: 768px; }
.legal h1 { font-size: clamp(32px, 4vw, 44px); letter-spacing: -1px; line-height: 1.15; }
.legal h2 { margin: 44px 0 12px; font-size: 22px; font-weight: 600; letter-spacing: -0.3px; }
.legal p, .legal li { line-height: 1.65; }
.legal ul { padding-left: 20px; display: flex; flex-direction: column; gap: 8px; }
.legal .updated { margin: 10px 0 32px; color: var(--muted); font-size: 14px; }
.legal table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); }
.legal th, .legal td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 10px 12px; }
.legal th { font: 500 12px/1.4 var(--font-mono); color: var(--muted); letter-spacing: 0.6px; text-transform: uppercase; background: var(--side); }

/* 404 */
.notfound { display: grid; place-items: center; padding: 72px 24px; }
.notfound .inner { max-width: 560px; text-align: center; }
.notfound .verdict { font-size: 14px; letter-spacing: 1px; }
.notfound h1 { margin-top: 22px; font-size: clamp(30px, 4vw, 42px); letter-spacing: -0.8px; line-height: 1.15; }
.notfound p { margin: 14px 0 0; color: var(--muted); font-size: 18px; }
.notfound .actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

/* footer */
.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 4px 32px; padding-top: 24px; padding-bottom: 32px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 4px 20px; }
.site-footer nav a { color: var(--muted); text-decoration: none; padding: 12px 4px; }
.site-footer nav a:hover { color: var(--ink); }
.disclaimer { flex-basis: 100%; margin: 0; font-size: 13px; }

@media (max-width: 760px) {
  .hero { padding: 48px 0 40px; }
  .hero .wrap { gap: 40px; }
  .nav a:not(.cta):not(.lang) { display: none; }
  section.block { padding: 56px 0; }
}