:root {
  --bg: #ffffff;
  --surface: #f2f4f6;
  --ink: #191f28;
  --ink2: #4e5968;
  --ink3: #667085;
  --line: #dde2e7;
  --accent: #087f73;
  --accentText: #087f73;
  --sun: #ffc23d;
  --navy: #1e2a45;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101419;
    --surface: #1b222b;
    --ink: #f4f6f8;
    --ink2: #bcc5d0;
    --ink3: #98a6b7;
    --line: #374252;
    --accentText: #72ddca;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink2);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
a { color: var(--accentText); }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.35; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }

.top { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 1; }
.top-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.brand { display: flex; align-items: center; gap: 8px; color: var(--ink); font-weight: 700; text-decoration: none; }
.brand img { border-radius: 8px; }
.top-nav, .foot-nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 14px; }
.top-nav a, .foot-nav a { color: var(--ink2); text-decoration: none; }
.top-nav a[aria-current], .foot-nav a[aria-current] { color: var(--accentText); font-weight: 600; }

.hero { background: var(--surface); padding: 56px 0; }
.hero-row { display: flex; align-items: center; gap: 32px; }
.hero-text { flex: 1; }
.eyebrow { color: var(--accentText); font-weight: 600; margin: 0 0 8px; }
.hero h1 { font-size: clamp(28px, 6vw, 42px); margin: 0 0 16px; }
.lead { font-size: 18px; margin: 0 0 16px; }
.soon { display: inline-block; margin: 0; padding: 6px 14px; border-radius: 999px; background: var(--bg); border: 1px solid var(--line); font-size: 14px; }
.hero-icon { border-radius: 44px; flex: none; }

.features, .help { padding-top: 48px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.grid article { background: var(--surface); border-radius: 16px; padding: 20px 24px; }
.grid h3 { margin: 0 0 8px; font-size: 18px; }
.grid p { margin: 0; }

.doc { padding-top: 32px; padding-bottom: 32px; max-width: 760px; }
.doc h2 { font-size: 26px; margin: 8px 0 24px; }
.doc h3 { font-size: 18px; margin: 36px 0 8px; }
.doc table { border-collapse: collapse; width: 100%; font-size: 14px; margin: 12px 0; display: block; overflow-x: auto; }
.doc th, .doc td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.doc th { background: var(--surface); color: var(--ink); }
.doc li { margin: 4px 0; }

.foot { margin-top: 64px; border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 13px; color: var(--ink3); }
.foot p { margin: 12px 0 0; }

@media (max-width: 640px) {
  .hero { padding: 40px 0; }
  .hero-row { flex-direction: column-reverse; align-items: flex-start; gap: 20px; }
  .hero-icon { width: 96px; height: 96px; border-radius: 22px; }
}