:root {
  --bg: #fbfaff;
  --ink: #17152e;
  --muted: #5d5a7a;
  --line: rgba(23, 21, 46, 0.09);
  --card: #ffffff;
  --accent: #6d4aff;
  --accent2: #22c3e0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0c1d;
    --ink: #eeecff;
    --muted: #a19ec4;
    --line: rgba(238, 236, 255, 0.1);
    --card: #15142b;
    --accent: #9d7dff;
    --accent2: #4fe0f5;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
header { padding: 28px 0; }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.02em; color: var(--ink); font-size: 18px; }
.logo .mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, #6366f1, #9d5cfa 55%, #22d3ee);
  box-shadow: 0 6px 18px rgba(109, 74, 255, 0.35);
}
nav a { color: var(--muted); margin-left: 18px; font-size: 14px; }
.hero { padding: 72px 0 40px; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.08; letter-spacing: -0.035em; margin: 0 0 16px; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { color: var(--muted); font-size: 18px; max-width: 560px; margin: 0; }
h2 { font-size: 14px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin: 56px 0 16px; }
.apps { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.app {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px; border-radius: 18px; background: var(--card);
  border: 1px solid var(--line); color: var(--ink);
  transition: transform .2s ease, box-shadow .2s ease;
}
.app:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 14px 40px rgba(23, 21, 46, 0.1); }
.app img { width: 56px; height: 56px; border-radius: 13px; flex: none; }
.app b { display: block; font-size: 17px; }
.app span { color: var(--muted); font-size: 14px; }
.app.soon { opacity: 0.55; pointer-events: none; }
.app.soon .ph { width: 56px; height: 56px; border-radius: 13px; border: 1.5px dashed var(--line); flex: none; }
footer { margin-top: 80px; padding: 28px 0 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
footer a { color: var(--muted); margin-right: 16px; }
.doc { padding: 24px 0 0; }
.doc h1 { font-size: 34px; letter-spacing: -0.02em; margin: 24px 0 4px; }
.doc .meta { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.doc h3 { margin: 32px 0 8px; font-size: 18px; }
.doc p, .doc li { color: var(--ink); opacity: .92; }
.doc ul { padding-left: 20px; }
.lang-en { display: none; }
html[lang="en"] .lang-en { display: block; }
html[lang="en"] .lang-ko { display: none; }
.toggle { background: none; border: 1px solid var(--line); color: var(--muted); border-radius: 999px; padding: 4px 12px; font: inherit; font-size: 13px; cursor: pointer; margin-left: 18px; }
@media (max-width: 520px) { nav a { margin-left: 12px; } .toggle { margin-left: 10px; } }
@media (prefers-reduced-motion: reduce) { .app { transition: none; } }