:root {
  color-scheme: light;
  --navy-950: #020b21;
  --navy-900: #06183d;
  --navy-800: #0a2456;
  --blue-600: #1769ff;
  --blue-500: #347cff;
  --blue-100: #eaf2ff;
  --amber-500: #ffae24;
  --ink: #07142f;
  --muted: #536078;
  --line: #dfe4ed;
  --surface: #ffffff;
  --surface-subtle: #f6f8fb;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --shadow: 0 24px 80px rgba(2, 11, 33, 0.14);
  --content: 1180px;
  --article: 760px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--surface);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue-600); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #0053d6; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  left: 20px;
  top: -60px;
  padding: 10px 14px;
  color: white;
  background: var(--blue-600);
  border-radius: 10px;
  transition: top 180ms ease;
}
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  color: white;
  background: rgba(2, 11, 33, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px) saturate(140%);
}

.site-header.light {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  border-color: rgba(7, 20, 47, 0.1);
}

.nav-shell {
  width: min(var(--content), calc(100% - 40px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: inherit;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand img { width: 38px; height: 38px; border-radius: 9px; }
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a { color: inherit; font-size: 15px; font-weight: 560; text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--blue-500); }

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  color: inherit;
  background: transparent;
  border: 0;
  border-radius: 50%;
}
.menu-button svg { width: 24px; }

.mobile-menu {
  width: min(var(--content), calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 18px;
}
.mobile-menu a { display: block; padding: 10px 0; color: inherit; text-decoration: none; }

.hero {
  position: relative;
  overflow: hidden;
  color: white;
  background: var(--navy-950);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 76% 42%, rgba(39, 113, 255, 0.17), transparent 34%);
}

.hero-shell {
  position: relative;
  z-index: 1;
  width: min(var(--content), calc(100% - 40px));
  min-height: 650px;
  margin: 0 auto;
  padding: 88px 0 72px;
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(480px, 1.25fr);
  align-items: center;
  gap: 56px;
}

.hero-copy h1,
.page-hero h1,
.support-hero h1 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(46px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.hero-copy p {
  max-width: 520px;
  margin: 28px 0 34px;
  color: #b9c5dd;
  font-size: clamp(19px, 2vw, 23px);
}

.button {
  min-height: 52px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: white;
  background: var(--blue-600);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 15px;
  box-shadow: 0 12px 30px rgba(23, 105, 255, 0.32);
  font-size: 16px;
  font-weight: 650;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease;
}
.button:hover { color: white; background: #0c5de9; transform: translateY(-1px); }
.button.is-disabled { cursor: default; opacity: 0.78; }
.button.is-disabled:hover { transform: none; }

.device-stage { position: relative; min-height: 470px; display: flex; align-items: center; justify-content: center; }
.device-stage::before {
  content: "";
  position: absolute;
  width: 72%;
  height: 26%;
  bottom: 3%;
  border-radius: 50%;
  background: rgba(45, 112, 255, 0.2);
  filter: blur(50px);
}

.device-frame {
  position: relative;
  z-index: 1;
  width: min(100%, 680px);
  overflow: hidden;
  background: white;
  border: 10px solid #171b24;
  border-radius: 28px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.5);
}
.device-frame img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: top; }

.section-shell {
  width: min(var(--content), calc(100% - 40px));
  margin: 0 auto;
}

.feature-row {
  min-height: 390px;
  padding: 72px 0;
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  align-items: center;
  gap: clamp(44px, 8vw, 110px);
  border-bottom: 1px solid var(--line);
}
.feature-row.reverse { grid-template-columns: 1.14fr 0.86fr; }
.feature-row.reverse .feature-copy { order: 2; }
.feature-row.reverse .feature-visual { order: 1; }

.feature-copy { max-width: 470px; }
.feature-copy h2 { margin: 0 0 16px; font-size: clamp(32px, 4vw, 48px); line-height: 1.08; letter-spacing: -0.04em; }
.feature-copy p { margin: 0; color: var(--muted); font-size: 19px; }
.feature-symbol {
  width: 62px;
  height: 62px;
  margin-bottom: 24px;
  display: grid;
  place-items: center;
  color: var(--blue-600);
  background: var(--blue-100);
  border-radius: 18px;
}
.feature-symbol.amber { color: #c66d00; background: #fff1d9; }
.feature-symbol svg { width: 31px; height: 31px; }

.feature-visual {
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(145deg, #f7f9fc, #eef3fb);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.feature-visual img { width: 100%; height: 100%; min-height: 280px; object-fit: cover; object-position: top; }

.privacy-visual { padding: 48px; align-items: flex-start; flex-direction: column; }
.privacy-visual strong { display: block; margin: 18px 0 8px; font-size: 24px; }
.privacy-visual p { margin: 0; color: var(--muted); }
.privacy-lock { width: 70px; height: 70px; color: var(--blue-600); }

.support-band {
  margin: 96px auto;
  padding: 42px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  color: var(--ink);
  background: #eef4ff;
  border: 1px solid #d9e6ff;
  border-radius: var(--radius-lg);
}
.support-band h2 { margin: 0 0 4px; font-size: 32px; letter-spacing: -0.035em; }
.support-band p { margin: 0; color: var(--muted); }

.site-footer { border-top: 1px solid var(--line); }
.footer-shell {
  width: min(var(--content), calc(100% - 40px));
  min-height: 140px;
  margin: 0 auto;
  padding: 34px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 24px; }
.footer-links a { color: var(--muted); font-size: 14px; text-decoration: none; }
.copyright { color: #788399; font-size: 14px; }

.page-hero {
  color: white;
  background: var(--navy-950);
}
.page-hero-shell {
  width: min(var(--content), calc(100% - 40px));
  min-height: 370px;
  margin: 0 auto;
  padding: 82px 0 72px;
  display: grid;
  grid-template-columns: 210px 1fr;
  align-items: center;
  gap: 70px;
}
.hero-mark { width: 180px; border-radius: 38px; box-shadow: 0 20px 50px rgba(31, 105, 255, 0.2); }
.page-hero h1 { font-size: clamp(48px, 6vw, 70px); }
.effective { margin: 14px 0; color: #51a0ff; font-weight: 600; }
.page-hero .lede { max-width: 650px; margin: 0; color: #d3dcf0; font-size: 21px; }

.legal-layout {
  width: min(var(--content), calc(100% - 40px));
  margin: 0 auto;
  padding: 70px 0 100px;
  display: grid;
  grid-template-columns: 220px minmax(0, var(--article));
  justify-content: center;
  gap: 70px;
}
.document-nav {
  position: sticky;
  top: 104px;
  align-self: start;
  padding-right: 28px;
  border-right: 1px solid var(--line);
}
.document-nav strong { display: block; margin-bottom: 15px; font-size: 14px; }
.document-nav a { display: block; margin: 12px 0; font-size: 14px; text-decoration: none; }
.legal-article section { scroll-margin-top: 104px; margin-bottom: 42px; }
.legal-article h2 { margin: 0 0 12px; font-size: 30px; line-height: 1.15; letter-spacing: -0.03em; }
.legal-article h3 { margin: 24px 0 8px; font-size: 20px; }
.legal-article p, .legal-article li { color: #26334b; }
.legal-article ul { padding-left: 22px; }
.summary-box { padding: 24px 26px; background: var(--surface-subtle); border-left: 4px solid var(--blue-600); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

.support-main { background: white; }
.support-hero {
  width: min(var(--content), calc(100% - 40px));
  margin: 0 auto;
  padding: 88px 0 50px;
}
.support-hero h1 { font-size: clamp(48px, 6vw, 72px); color: var(--ink); }
.support-hero p { margin: 16px 0 28px; color: var(--muted); font-size: 21px; }
.search-wrap { position: relative; max-width: 750px; }
.search-wrap svg { position: absolute; top: 18px; left: 18px; width: 24px; color: #65738b; }
.search-wrap input {
  width: 100%;
  height: 62px;
  padding: 0 20px 0 58px;
  color: var(--ink);
  background: white;
  border: 1px solid #cfd6e2;
  border-radius: 15px;
  outline: none;
  box-shadow: 0 8px 24px rgba(2, 11, 33, 0.06);
}
.search-wrap input:focus { border-color: var(--blue-600); box-shadow: 0 0 0 4px rgba(23, 105, 255, 0.12); }

.support-grid {
  width: min(var(--content), calc(100% - 40px));
  margin: 0 auto;
  padding: 38px 0 100px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 72px;
  align-items: start;
}
.faq-list h2, .start-here h2 { margin: 0 0 20px; font-size: 24px; letter-spacing: -0.025em; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 18px; cursor: pointer; font-weight: 650; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--blue-600); font-size: 24px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-answer { padding: 0 28px 26px 0; color: var(--muted); }
.faq-answer p { margin: 0 0 12px; }
.search-empty { padding: 24px 0; color: var(--muted); }

.start-here { padding: 28px; background: #f5f8ff; border: 1px solid #cfe0ff; border-radius: var(--radius-md); }
.step { position: relative; padding: 0 0 26px 44px; }
.step:last-child { padding-bottom: 0; }
.step::before { content: ""; position: absolute; top: 28px; bottom: 0; left: 15px; width: 1px; background: #b9d1ff; }
.step:last-child::before { display: none; }
.step-number { position: absolute; left: 0; top: 0; width: 30px; height: 30px; display: grid; place-items: center; color: white; background: var(--blue-600); border-radius: 50%; font-size: 13px; font-weight: 700; }
.step strong { display: block; }
.step p { margin: 3px 0 0; color: var(--muted); font-size: 15px; }

.contact-band { color: white; background: var(--navy-950); }
.contact-shell {
  width: min(var(--content), calc(100% - 40px));
  min-height: 230px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}
.contact-shell h2 { margin: 0 0 6px; font-size: 38px; letter-spacing: -0.04em; }
.contact-shell p { margin: 0; color: #b9c5dd; }
.contact-action { text-align: center; }
.contact-action .contact-note { display: block; max-width: 320px; margin-top: 12px; color: #9ab8ed; font-size: 14px; line-height: 1.5; }
.is-disabled { pointer-events: none; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .menu-button { display: grid; place-items: center; }
  .hero-shell { min-height: auto; padding-top: 68px; grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-copy p { margin-left: auto; margin-right: auto; }
  .device-stage { min-height: 380px; }
  .feature-row, .feature-row.reverse { grid-template-columns: 1fr; gap: 38px; }
  .feature-row.reverse .feature-copy, .feature-row.reverse .feature-visual { order: initial; }
  .page-hero-shell { grid-template-columns: 130px 1fr; gap: 36px; }
  .hero-mark { width: 130px; }
  .legal-layout { grid-template-columns: 1fr; }
  .document-nav { display: none; }
  .support-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .nav-shell { min-height: 64px; }
  .brand img { width: 34px; height: 34px; }
  .hero-shell { padding: 58px 0 48px; gap: 24px; }
  .hero-copy h1 { font-size: 48px; }
  .device-stage { min-height: 290px; }
  .device-frame { border-width: 6px; border-radius: 20px; }
  .feature-row { min-height: auto; padding: 58px 0; }
  .feature-copy h2 { font-size: 36px; }
  .support-band, .contact-shell { flex-direction: column; align-items: flex-start; }
  .support-band { margin: 60px auto; padding: 30px; }
  .footer-shell { align-items: flex-start; flex-direction: column; }
  .page-hero-shell { grid-template-columns: 1fr; padding: 50px 0; }
  .hero-mark { width: 88px; border-radius: 20px; }
  .page-hero h1 { font-size: 48px; }
  .legal-layout { padding-top: 48px; }
  .support-hero { padding-top: 58px; }
  .support-hero h1 { font-size: 48px; }
  .support-grid { padding-top: 20px; gap: 48px; }
  .contact-shell { padding: 52px 0; }
  .contact-action { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}