:root {
  color-scheme: light dark;
  --page-start: #bde3f2;
  --page-end: #f5f9fb;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-solid: #ffffff;
  --ink: #141720;
  --muted: #59616f;
  --line: rgba(20, 23, 32, 0.1);
  --nav: #141720;
  --cyan: #1a9ccb;
  --teal: #20ad96;
  --violet: #6461ca;
  --coral: #f57a59;
  --shadow: 0 18px 45px rgba(24, 52, 68, 0.12);
  --content: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page-start: #0a1a29;
    --page-end: #07101c;
    --surface: rgba(18, 29, 43, 0.92);
    --surface-solid: #121d2b;
    --ink: #f0f5fc;
    --muted: #acb9ca;
    --line: rgba(210, 224, 242, 0.14);
    --nav: #111c2a;
    --cyan: #4db8dc;
    --teal: #52cdb5;
    --violet: #9c94fa;
    --coral: #ff806b;
    --shadow: 0 20px 54px rgba(0, 0, 0, 0.35);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 14% 0%, color-mix(in srgb, var(--teal) 18%, transparent), transparent 32rem),
    linear-gradient(145deg, var(--page-start), var(--page-end) 43rem);
  background-attachment: fixed;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--cyan) 70%, white);
  outline-offset: 4px;
  border-radius: 6px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-solid) 82%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.header-inner,
.nav-inner,
.container {
  width: min(100% - 40px, var(--content));
  margin-inline: auto;
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-size: 20px;
  font-weight: 760;
  letter-spacing: -0.03em;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  box-shadow: 0 6px 18px rgba(35, 54, 78, 0.2);
}

.product-label {
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: color-mix(in srgb, var(--surface-solid) 64%, transparent);
  font-size: 12px;
  font-weight: 650;
}

.site-nav {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-solid) 60%, transparent);
}

.nav-inner {
  display: flex;
  gap: 4px;
  overflow-x: auto;
}

.nav-inner a {
  position: relative;
  flex: 0 0 auto;
  padding: 13px 16px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 650;
}

.nav-inner a:hover,
.nav-inner a[aria-current="page"] {
  color: var(--ink);
}

.nav-inner a[aria-current="page"]::after {
  position: absolute;
  right: 16px;
  bottom: -1px;
  left: 16px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--violet);
  content: "";
}

.container {
  padding-block: 72px 104px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--violet);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 680px;
  margin-bottom: 16px;
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  line-height: 0.99;
  letter-spacing: -0.055em;
}

.lede {
  max-width: 640px;
  margin-bottom: 46px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.5vw, 1.22rem);
}

.card,
.summary,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card {
  padding: 30px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.card h2,
.card h3 {
  margin-bottom: 10px;
  letter-spacing: -0.025em;
}

.card p:last-child,
.section p:last-child {
  margin-bottom: 0;
}

.card p,
.section p,
.section li,
.faq-answer {
  color: var(--muted);
}

.icon-tile {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 15px;
  background: color-mix(in srgb, var(--accent, var(--cyan)) 16%, transparent);
  color: var(--accent, var(--cyan));
  font-size: 22px;
  font-weight: 800;
}

.section {
  margin-top: 64px;
}

.section > h2 {
  margin-bottom: 24px;
  font-size: clamp(1.65rem, 4vw, 2.1rem);
  letter-spacing: -0.035em;
}

.steps {
  display: grid;
  gap: 12px;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface-solid) 74%, transparent);
  counter-increment: steps;
}

.steps li::before {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: var(--nav);
  color: white;
  content: counter(steps);
  font-weight: 750;
}

.steps strong {
  display: block;
  margin-bottom: 3px;
  color: var(--ink);
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.faq-question {
  margin-bottom: 7px;
  font-size: 1.03rem;
  font-weight: 720;
}

.faq-answer {
  margin-bottom: 0;
}

.summary {
  position: relative;
  overflow: hidden;
  margin-bottom: 60px;
  padding: 34px;
  background: var(--nav);
  color: white;
}

.summary::after {
  position: absolute;
  width: 220px;
  height: 220px;
  right: -80px;
  bottom: -120px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--cyan), var(--teal));
  opacity: 0.45;
  content: "";
}

.summary h2 {
  margin-bottom: 18px;
  font-size: 1.3rem;
}

.check-list,
.plain-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list {
  display: grid;
  gap: 10px;
}

.check-list li {
  position: relative;
  z-index: 1;
  padding-left: 28px;
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--teal);
  content: "✓";
  font-weight: 900;
}

.legal-section {
  margin: 0 0 48px;
}

.legal-section h2 {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 1.55rem;
  letter-spacing: -0.025em;
}

.legal-section p,
.legal-section li {
  color: var(--muted);
}

.plain-list {
  display: grid;
  gap: 8px;
  margin-block: 14px;
}

.plain-list li {
  position: relative;
  padding-left: 22px;
}

.plain-list li::before {
  position: absolute;
  left: 2px;
  color: var(--violet);
  content: "—";
}

.notice {
  margin-block: 18px;
  padding: 16px 18px;
  border-left: 4px solid var(--coral);
  border-radius: 0 12px 12px 0;
  background: color-mix(in srgb, var(--coral) 9%, transparent);
  color: var(--muted);
}

.contact-card {
  margin-top: 64px;
  padding: 34px;
  text-align: center;
}

.contact-card h2 {
  margin-bottom: 8px;
  font-size: 1.7rem;
  letter-spacing: -0.03em;
}

.contact-card p {
  margin-bottom: 20px;
  color: var(--muted);
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 14px;
  background: var(--nav);
  color: white;
  text-decoration: none;
  font-weight: 720;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(20, 23, 32, 0.2);
}

.text-link {
  color: var(--violet);
  font-weight: 680;
  text-underline-offset: 3px;
}

.meta {
  margin: -4px 0 42px;
  color: var(--muted);
  font-size: 14px;
}

.site-footer {
  padding: 32px 20px 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  text-align: center;
  font-size: 13px;
}

.site-footer a {
  color: var(--ink);
  text-underline-offset: 3px;
}

@media (max-width: 640px) {
  .header-inner,
  .nav-inner,
  .container {
    width: min(100% - 28px, var(--content));
  }

  .header-inner {
    min-height: 68px;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .product-label {
    display: none;
  }

  .container {
    padding-block: 52px 76px;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .card,
  .summary,
  .contact-card {
    padding: 24px;
    border-radius: 21px;
  }

  .section {
    margin-top: 50px;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}