:root {
  --paper: #f6f7f9;
  --surface: #fff;
  --ink: #081b4b;
  --muted: #59657b;
  --line: #d5dde8;
  --accent: #f03832;
  --accent-dark: #c82925;
  --dark: #f6f7f9;
  --dark-line: #d5dde8;
  --dark-muted: #59657b;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: 'Noto Sans', Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
:where(a, button, input, select, textarea):focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px #0b55c9;
}
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 12px 16px;
  color: #fff;
  background: #081b4b;
  text-decoration: none;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }
.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
}
.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.03em;
}
.wordmark-mark {
  width: 16px;
  height: 16px;
  border: 4px solid var(--accent);
  border-radius: 50%;
}
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { color: #44464c; text-decoration: none; font-size: 14px; }
.nav-links a[aria-current="page"] { color: var(--accent); }
.button {
  min-height: 46px;
  padding: 11px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 12px;
  color: #fff;
  background: var(--ink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.2;
}
.button:hover { background: #34363d; border-color: #34363d; }
.button-red { color: #06132f; background: var(--accent); border-color: var(--accent); }
.button-red:hover { color: #fff; background: var(--accent-dark); border-color: var(--accent-dark); }
.button-light { color: var(--ink); background: #fff; border-color: #fff; }

.breadcrumb {
  padding-top: 34px;
  display: flex;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
}
.breadcrumb a { text-underline-offset: 3px; }
.detail-hero { padding: 72px 0 78px; }
.eyebrow {
  margin: 0 0 22px;
  color: #223370;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 1060px;
  margin-bottom: 28px;
  font-size: clamp(48px, 6.7vw, 88px);
  line-height: .99;
  letter-spacing: -.06em;
}
.hero-lead {
  max-width: 820px;
  margin: 0;
  color: #484a50;
  font-size: clamp(20px, 2vw, 27px);
  line-height: 1.42;
  letter-spacing: -.02em;
}

.fact-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.facts { display: grid; grid-template-columns: repeat(3, 1fr); }
.fact { min-height: 126px; padding: 26px 28px; border-left: 1px solid var(--line); }
.fact:last-child { border-right: 1px solid var(--line); }
.fact span { display: block; margin-bottom: 14px; color: var(--muted); font-size: 13px; }
.fact strong { display: block; font-size: 20px; line-height: 1.25; letter-spacing: -.02em; }

.section { padding: 108px 0; }
.section-white { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-dark { color: var(--ink); background: var(--dark); }
.section-head { max-width: 830px; margin-bottom: 64px; }
h2 { margin-bottom: 22px; font-size: clamp(38px, 4.8vw, 66px); line-height: 1.04; letter-spacing: -.055em; }
.section-head > p:last-child { max-width: 690px; margin-bottom: 0; color: var(--muted); font-size: 19px; }
.section-dark .section-head > p:last-child { color: var(--dark-muted); }

.flow { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); }
.flow-step { min-height: 286px; padding: 30px 28px 36px 0; border-bottom: 1px solid var(--line); }
.flow-step + .flow-step { padding-left: 28px; border-left: 1px solid var(--line); }
.flow-step .number { display: block; margin-bottom: 62px; color: var(--accent); font-size: 14px; font-weight: 700; }
.flow-step h3 { margin-bottom: 13px; font-size: 23px; line-height: 1.2; letter-spacing: -.03em; }
.flow-step p { margin: 0; color: var(--muted); font-size: 15px; }

.system-map { border-top: 1px solid var(--dark-line); }
.map-row { display: grid; grid-template-columns: 230px 1fr; border-bottom: 1px solid var(--dark-line); }
.map-label { padding: 28px 30px 28px 0; color: #223370; font-size: 14px; font-weight: 700; }
.map-content { padding: 28px 0 30px 34px; border-left: 1px solid var(--dark-line); }
.map-content h3 { margin-bottom: 9px; font-size: 22px; letter-spacing: -.02em; }
.map-content p { max-width: 760px; margin: 0; color: var(--dark-muted); font-size: 16px; }

.data-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--ink); }
.data-item { min-height: 188px; padding: 30px 36px 34px 0; border-bottom: 1px solid var(--line); }
.data-item:nth-child(even) { padding-left: 36px; border-left: 1px solid var(--line); }
.data-item h3 { margin-bottom: 12px; font-size: 22px; letter-spacing: -.025em; }
.data-item p { margin: 0; color: var(--muted); font-size: 15px; }

.calculation {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.calc-cell { min-height: 180px; padding: 30px; display: flex; flex-direction: column; justify-content: space-between; }
.calc-cell small { color: var(--muted); font-size: 13px; }
.calc-cell strong { font-size: clamp(28px, 3.4vw, 46px); letter-spacing: -.04em; }
.calc-sign { padding: 0 10px; align-self: center; color: var(--accent); font-size: 30px; }
.calculation-note { margin-top: 14px; color: var(--muted); font-size: 13px; }

.screen { overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: var(--paper); }
.screen img { display: block; width: 100%; height: auto; }
.screen-caption { margin: 14px 0 0; color: var(--muted); font-size: 13px; }
.split-proof { display: grid; grid-template-columns: .7fr 1.3fr; gap: 64px; align-items: center; }
.split-proof h3 { margin-bottom: 16px; font-size: clamp(30px, 3.4vw, 48px); line-height: 1.08; letter-spacing: -.04em; }
.split-proof p { margin: 0; color: var(--muted); }

.related { padding: 78px 0; }
.related h2 { margin-bottom: 40px; font-size: clamp(32px, 4vw, 48px); }
.related-list { border-top: 1px solid var(--ink); }
.related-link {
  display: grid;
  grid-template-columns: 190px 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.related-link span:first-child { color: var(--muted); font-size: 13px; }
.related-link strong { font-size: 20px; }
.related-link span:last-child { color: var(--accent); font-size: 22px; }

.cta { padding: 86px 0; color: var(--ink); background: var(--dark); }
.cta-grid { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: end; }
.cta h2 { max-width: 760px; margin-bottom: 17px; }
.cta p { max-width: 650px; margin: 0; color: var(--dark-muted); }

.site-footer { padding: 27px 0; border-top: 1px solid var(--line); }
.footer-row { display: flex; justify-content: space-between; gap: 24px; color: var(--muted); font-size: 13px; }

@media (max-width: 960px) {
  .nav-links { display: none; }
  .facts { grid-template-columns: 1fr; }
  .fact { min-height: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .fact:last-child { border-bottom: 0; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow-step:nth-child(3) { padding-left: 0; border-left: 0; }
  .split-proof { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; align-items: start; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 32px), var(--max)); }
  .nav { min-height: 64px; }
  .nav > .button { display: none; }
  .breadcrumb { padding-top: 22px; }
  .detail-hero { padding: 54px 0 62px; }
  h1 { font-size: 44px; letter-spacing: -.055em; }
  .hero-lead { font-size: 19px; }
  .section { padding: 74px 0; }
  h2 { font-size: 39px; }
  .flow { grid-template-columns: 1fr; }
  .flow-step { min-height: 0; padding-right: 0; }
  .flow-step + .flow-step, .flow-step:nth-child(3) { padding-left: 0; border-left: 0; }
  .flow-step .number { margin-bottom: 30px; }
  .map-row { grid-template-columns: 1fr; }
  .map-label { padding-bottom: 8px; }
  .map-content { padding: 0 0 28px; border-left: 0; }
  .data-grid { grid-template-columns: 1fr; }
  .data-item:nth-child(even) { padding-left: 0; border-left: 0; }
  .calculation { grid-template-columns: 1fr; }
  .calc-cell { min-height: 130px; padding: 24px 0; }
  .calc-sign { padding: 2px 0; justify-self: start; }
  .related-link { grid-template-columns: 1fr auto; gap: 7px 18px; }
  .related-link span:first-child { grid-column: 1 / -1; }
  .cta { padding: 72px 0; }
  .footer-row { flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }


/* Shared brand treatment with the main landing. The page canvas stays light. */
h1, h2, h3 { font-family: 'Noto Sans', Arial, sans-serif; font-weight: 700; }
h1 { font-size: clamp(40px, 5.7vw, 76px); line-height: 1.12; letter-spacing: -.05em; }
h2 { font-size: clamp(32px, 4vw, 50px); line-height: 1.18; }
.hero-lead { color: var(--muted); font-size: clamp(18px, 2vw, 23px); }
.detail-hero { padding: 64px 0 72px; }
.section { padding: 80px 0; }
.section-head { margin-bottom: 44px; }
.fact-strip { background: var(--paper); }
.wordmark { font-size: 25px; }
.wordmark-mark { width: 27px; height: 27px; border: 6px solid var(--ink); border-right-color: var(--accent); transform: rotate(-25deg); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #c82925; }
.eyebrow, .flow-step .number { color: #223370; }
.visual-section { padding: 55px 0; }
.product-visual { max-width: 1100px; margin-inline: auto; }
.product-visual img { aspect-ratio: 1.7; object-fit: cover; }
@media(max-width:640px) {
  .detail-hero { padding: 42px 0 50px; }
  .section { padding: 54px 0; }
  .nav { gap: 15px; }
  .wordmark { font-size: 23px; }
  .product-visual img { aspect-ratio: 1.4; }
}