:root {
  color-scheme: light dark;
  --bg: #f5f9fc;
  --surface: rgba(255, 255, 255, .78);
  --surface-solid: #fff;
  --ink: #102438;
  --muted: #5d6e7e;
  --line: rgba(40, 76, 105, .14);
  --accent: #087f8c;
  --accent-2: #176d9b;
  --accent-soft: #e2f5f3;
  --shadow: 0 18px 55px rgba(17, 59, 87, .11);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #07131f;
    --surface: rgba(16, 34, 50, .76);
    --surface-solid: #102232;
    --ink: #eef7fb;
    --muted: #a5b7c4;
    --line: rgba(176, 215, 231, .16);
    --accent: #4fd1c5;
    --accent-2: #5ebee8;
    --accent-soft: #0e353c;
    --shadow: 0 24px 70px rgba(0, 0, 0, .28);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 2%, color-mix(in srgb, var(--accent-2) 13%, transparent), transparent 34rem),
    var(--bg);
  font: 16px/1.68 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  letter-spacing: -.01em;
}
a { color: var(--accent-2); text-underline-offset: 3px; }
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}
.site-header, main, footer { width: min(1040px, calc(100% - 40px)); margin-inline: auto; }
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); font-weight: 760; text-decoration: none; }
.brand img { border-radius: 10px; box-shadow: 0 7px 20px rgba(9, 83, 104, .22); }
nav { display: flex; gap: 20px; white-space: nowrap; }
nav a { color: var(--muted); font-size: 14px; font-weight: 650; text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--ink); }
main { padding: 72px 0 64px; }
.hero { padding: 40px 0 76px; border: 0; }
.eyebrow, .section-kicker { margin: 0 0 12px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .13em; }
h1 { margin: 0 0 22px; font-size: clamp(44px, 8vw, 82px); line-height: 1.02; letter-spacing: -.065em; }
.policy h1 { font-size: clamp(40px, 7vw, 68px); }
h2 { margin: 0 0 20px; font-size: clamp(28px, 4vw, 40px); line-height: 1.14; letter-spacing: -.045em; }
h3 { margin: 0 0 7px; font-size: 18px; line-height: 1.35; letter-spacing: -.025em; }
p { margin: 0 0 14px; }
.lead { max-width: 760px; color: var(--muted); font-size: clamp(18px, 2.5vw, 22px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 46px; }
.button {
  display: inline-block;
  padding: 11px 18px;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 28px color-mix(in srgb, var(--accent-2) 22%, transparent);
  font-weight: 740;
  text-decoration: none;
}
.button.secondary { color: var(--ink); background: var(--surface); border: 1px solid var(--line); box-shadow: none; }
.feature-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--line); box-shadow: var(--shadow); }
.feature-strip span { padding: 19px 20px; background: var(--surface-solid); color: var(--muted); font-size: 14px; }
section { padding: 56px 0; border-top: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.steps article, .faq-grid article { border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow); }
.steps article { display: flex; gap: 16px; padding: 22px; }
.steps strong { display: grid; width: 32px; height: 32px; flex: 0 0 auto; place-items: center; border-radius: 10px; color: var(--accent); background: var(--accent-soft); }
.steps p, .faq-grid p, .english { color: var(--muted); }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.faq-grid article { padding: 22px; }
.contact { display: flex; align-items: center; justify-content: space-between; gap: 34px; }
.contact > div { max-width: 720px; }
.policy { max-width: 860px; }
.policy section { padding: 34px 0; }
.policy h2 { font-size: 28px; }
.policy ul { padding-left: 22px; }
.policy li + li { margin-top: 8px; }
footer { display: flex; justify-content: space-between; gap: 18px; padding: 27px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }

@media (max-width: 720px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  nav { width: 100%; justify-content: space-between; gap: 12px; }
  main { padding-top: 44px; }
  .hero { padding-top: 24px; }
  .feature-strip, .steps, .faq-grid { grid-template-columns: 1fr; }
  .contact { align-items: flex-start; flex-direction: column; }
  footer { flex-direction: column; }
}

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