:root {
  --dark: #0B121D;
  --accent: #2563EB;
  --slate: #334155;
  --line: #E5E7EB;
  --light: #F8FAFC;
  --white: #FFFFFF;
  --max: 1240px;
  --radius: 24px;
  --shadow: 0 30px 80px rgba(11,18,29,.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--dark);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }

section[id] { scroll-margin-top: 88px; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  left: 12px;
  top: 12px;
  z-index: 1000;
  padding: 10px 14px;
  background: white;
  color: var(--dark);
  border-radius: 10px;
  transform: translateY(-140%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }

.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;
}

.shell {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(11,18,29,.72);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled {
  background: rgba(11,18,29,.92);
  box-shadow: 0 10px 40px rgba(0,0,0,.15);
}
.header-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
  text-decoration: none;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.brand:hover,
.brand:focus-visible {
  border-color: rgba(255,255,255,.14);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.025));
  transform: translateY(-1px);
}
.brand img { width: 182px; height: auto; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a {
  color: rgba(255,255,255,.78);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -.01em;
  transition: color .2s ease;
}
.site-nav a:hover, .site-nav a:focus-visible { color: #fff; }
.menu-toggle { display: none; }

.hero {
  position: relative;
  min-height: 760px;
  padding: 170px 0 104px;
  color: white;
  background:
    radial-gradient(circle at 78% 30%, rgba(37,99,235,.16), transparent 28%),
    linear-gradient(180deg, #0B121D 0%, #0D1724 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 86%);
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(410px, .97fr);
  gap: clamp(56px, 7vw, 116px);
  align-items: center;
}
.eyebrow {
  margin: 0 0 20px;
  color: #93B1FF;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.eyebrow.dark { color: var(--accent); }
.hero h1 {
  max-width: 790px;
  margin: 0;
  font-size: clamp(48px, 6vw, 78px);
  line-height: .99;
  letter-spacing: -.055em;
  font-weight: 800;
}
.hero-lead {
  max-width: 690px;
  margin: 28px 0 0;
  color: rgba(248,250,252,.72);
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.65;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 36px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button:focus-visible { outline: 3px solid rgba(147,177,255,.65); outline-offset: 3px; }
.button-primary { background: var(--accent); color: white; box-shadow: 0 18px 44px rgba(37,99,235,.26); }
.button-primary:hover { box-shadow: 0 22px 52px rgba(37,99,235,.34); }
.button-secondary { color: white; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.03); }
.button-secondary:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.34); }

.hero-system {
  position: relative;
  min-height: 500px;
  isolation: isolate;
}
.hero-system::before {
  content: none;
}
.hero-system::after {
  content: "";
  position: absolute;
  width: 54%;
  height: 1px;
  right: 9%;
  top: 18%;
  background: linear-gradient(90deg, transparent, rgba(147,177,255,.32), transparent);
  z-index: -1;
}
.hero-mark-wrap {
  position: absolute;
  right: 8%;
  top: 14%;
  width: min(410px, 78%);
  aspect-ratio: 1;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle, rgba(255,255,255,.022) 0 28%, transparent 29%);
  box-shadow: inset 0 0 90px rgba(37,99,235,.07), 0 0 100px rgba(37,99,235,.06);
}
.hero-mark-wrap::before,
.hero-mark-wrap::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 50%;
}
.hero-mark-wrap::before { inset: 46px; }
.hero-mark-wrap::after { inset: 96px; }
.hero-mark-halo {
  position: absolute;
  inset: 29%;
  border-radius: 50%;
  background: rgba(37,99,235,.08);
  filter: blur(18px);
}
.hero-mark-wrap img {
  width: 43%;
  filter: invert(1) brightness(1.72);
  opacity: .98;
  z-index: 2;
}
.system-line {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(147,177,255,.48), transparent);
  opacity: .82;
}
.line-a { width: 66%; top: 50%; right: 2%; transform: rotate(-17deg); }
.line-b { width: 54%; top: 66%; right: 9%; transform: rotate(19deg); }
.system-node {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #7DA2FF;
  box-shadow: 0 0 0 5px rgba(125,162,255,.11), 0 0 22px rgba(125,162,255,.25);
}
.node-a { right: 4%; top: 28%; }
.node-b { left: 13%; top: 63%; }
.node-c { right: 22%; bottom: 11%; }
.system-label {
  position: absolute;
  margin: 0;
  padding: 7px 10px;
  border: 1px solid rgba(255,255,255,.075);
  border-radius: 8px;
  color: rgba(255,255,255,.60);
  background: rgba(11,18,29,.62);
  backdrop-filter: blur(8px);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  white-space: nowrap;
  line-height: 1;
}
.label-a {
  right: 4%;
  top: calc(28% - 34px);
  transform: translateX(50%);
}
.label-b {
  left: 13%;
  top: calc(63% - 34px);
  transform: translateX(-50%);
}
.label-c {
  right: 22%;
  bottom: calc(11% + 18px);
  transform: translateX(50%);
}
.hero-rule { position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,.14), transparent); }

.section { padding: 120px 0; }
.section-heading { max-width: 850px; margin-bottom: 64px; }
.section-heading h2,
.about-title h2,
.contact-grid h2 {
  margin: 0;
  font-size: clamp(42px, 4.9vw, 66px);
  line-height: 1.03;
  letter-spacing: -.048em;
}
.section-heading.split { max-width: none; display: grid; grid-template-columns: 1.05fr .75fr; gap: 90px; align-items: end; }
.section-heading.split > p { margin: 0 0 7px; color: var(--slate); font-size: 17px; }

.principles { background: white; }
.principle-list { border-top: 1px solid var(--line); }
.principle-row {
  display: grid;
  grid-template-columns: 70px 260px 1fr;
  gap: 34px;
  padding: 38px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.index { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .14em; }
.principle-row h3, .method-card h3 { margin: 0; font-size: 22px; letter-spacing: -.03em; }
.principle-row p, .method-card p { margin: 0; color: var(--slate); font-size: 16px; }

.product-section {
  padding: 120px 0;
  color: white;
  background: var(--dark);
}
.product-shell { display: grid; grid-template-columns: .72fr 1.28fr; gap: 76px; align-items: start; }
.product-intro { position: sticky; top: 118px; }
.guvencheck-lockup { width: min(340px, 78%); margin: 0 0 32px; height: auto; }
.product-intro h2 { margin: 0; font-size: clamp(36px, 4.2vw, 58px); line-height: 1.04; letter-spacing: -.045em; }
.product-intro p { margin: 24px 0 0; color: rgba(248,250,252,.72); font-size: 17px; }
.button-product { margin-top: 28px; background: white; color: var(--dark); }
.button-product:hover { box-shadow: 0 20px 50px rgba(255,255,255,.12); }
.product-visual { display: grid; gap: 18px; }
.product-visual figure { margin: 0; overflow: hidden; border-radius: 20px; border: 1px solid rgba(255,255,255,.09); background: #07110F; box-shadow: 0 24px 70px rgba(0,0,0,.24); }
.product-visual img { width: 100%; height: auto; }
.portrait-shots { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.method { background: var(--light); }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.method-card { min-height: 340px; padding: 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.78); }
.method-card h3 { margin-top: 44px; }
.method-card p { margin-top: 18px; }

.about-section { padding: 130px 0; color: white; background: #101927; }
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 120px; }
.about-title h2 { max-width: 600px; }
.about-copy { max-width: 650px; }
.about-copy p { margin: 0 0 22px; color: rgba(248,250,252,.75); font-size: 18px; line-height: 1.75; }

.contact-section { padding: 90px 0; background: white; border-bottom: 1px solid var(--line); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: end; }
.contact-links { display: grid; gap: 16px; justify-items: start; }
.contact-links a { font-size: clamp(20px, 2.4vw, 30px); font-weight: 700; letter-spacing: -.03em; text-decoration: none; border-bottom: 1px solid var(--line); padding-bottom: 8px; }
.contact-links a:hover { color: var(--accent); }

.site-footer { padding: 54px 0 44px; color: white; background: var(--dark); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 80px; align-items: end; }
.footer-brand img { width: 170px; height: auto; margin-bottom: 18px; }
.footer-brand p { margin: 0; color: rgba(248,250,252,.58); }
.footer-meta { display: grid; grid-template-columns: repeat(2, auto); gap: 22px; align-items: center; font-size: 13px; color: rgba(248,250,252,.6); }
.footer-meta a { text-decoration: none; color: rgba(248,250,252,.72); }
.footer-meta a:hover { color: white; }
.footer-meta p { margin: 0; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .hero { padding-top: 142px; min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 64px; }
  .hero-system { min-height: 360px; }
  .hero-mark-wrap { left: 50%; right: auto; top: 12%; transform: translateX(-50%); width: min(360px, 78vw); }
  .hero-system::before { inset: 4% 4% 7%; }
      .product-shell, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .product-intro { position: static; }
  .product-shell { gap: 48px; }
  .section-heading.split { grid-template-columns: 1fr; gap: 28px; }
  .method-grid { grid-template-columns: 1fr; border-right: 1px solid var(--line); }
  .about-grid { gap: 48px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-meta { grid-template-columns: 1fr; gap: 10px; }
}

@media (max-width: 760px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .header-inner { min-height: 70px; }
  .brand img { width: 150px; }
  .js .menu-toggle {
    display: inline-grid;
    width: 42px;
    height: 42px;
    place-content: center;
    gap: 6px;
    background: transparent;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 12px;
  }
  .menu-toggle span:not(.sr-only) { display: block; width: 18px; height: 1.5px; background: white; }
  .site-nav {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 84px;
    display: grid;
    padding: 12px;
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 16px;
    background: rgba(11,18,29,.98);
    box-shadow: 0 18px 50px rgba(0,0,0,.22);
  }
  .js .site-nav { display: none; }
  .js .site-nav.is-open { display: grid; }
  .site-nav a { padding: 12px; border-radius: 10px; }
  .site-nav a:hover { background: rgba(255,255,255,.06); }
  .brand {
    padding: 9px 12px;
    border-radius: 12px;
  }
  .brand img { width: 160px; }
  .hero { padding: 132px 0 76px; }
  .hero h1 { font-size: clamp(42px, 13vw, 62px); }
  .hero-lead { font-size: 16px; }
  .hero-actions { display: grid; }
  .button { width: 100%; }
  .hero-system { min-height: 280px; }
  .hero-mark-wrap { width: min(300px, 86vw); }
  .system-label { display: none; }
    .section, .product-section, .about-section { padding: 84px 0; }
  .section-heading { margin-bottom: 44px; }
  .principle-row { grid-template-columns: 42px 1fr; gap: 12px 18px; }
  .principle-row p { grid-column: 2; }
  .product-intro h2 { font-size: 40px; }
  .portrait-shots { grid-template-columns: 1fr; }
  .method-card { min-height: auto; padding: 26px; }
  .method-card h3 { margin-top: 30px; }
  .contact-grid { gap: 40px; }
  .contact-links a { font-size: 22px; }
}

@media (max-width: 520px) {
  .shell { width: min(calc(100% - 24px), var(--max)); }
  .header-inner { min-height: 72px; }
  .brand { padding: 8px 10px; border-radius: 11px; }
  .brand img { width: 148px; }
  .site-nav { top: 76px; }
  .hero { padding: 118px 0 68px; }
  .hero h1 { font-size: clamp(39px, 12.2vw, 54px); line-height: 1.01; }
  .hero-lead { margin-top: 22px; line-height: 1.58; }
  .hero-actions { margin-top: 28px; }
  .hero-system { min-height: 250px; }
  .hero-mark-wrap { width: min(260px, 82vw); top: 8%; }
  .section, .product-section, .about-section { padding: 72px 0; }
  .section-heading { margin-bottom: 36px; }
  .section-heading h2, .about-title h2, .contact-grid h2 { font-size: clamp(36px, 10.8vw, 48px); }
  .principle-row { padding: 30px 0; }
  .product-shell { gap: 38px; }
  .guvencheck-lockup { width: min(300px, 86%); margin-bottom: 24px; }
  .product-intro p, .about-copy p { font-size: 16px; }
  .portrait-shots { gap: 14px; }
  .product-visual { gap: 14px; }
  .product-visual figure { border-radius: 16px; }
  .contact-section { padding: 70px 0; }
  .contact-links a { max-width: 100%; font-size: clamp(17px, 5vw, 21px); overflow-wrap: anywhere; }
  .site-footer { padding: 44px 0 36px; }
  .footer-brand img { width: 158px; }
}


@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}