/* 출조 — 앱 소개 사이트
   앱과 같은 색을 씁니다. 제품과 웹이 한 세계에 있도록. */

:root {
  --ground: #eef3f6;
  --surface: #ffffff;
  --surface-2: #e3ebf0;
  --line: #cfdce4;
  --line-soft: #dfe9ef;

  --ink: #0b1a22;
  --ink-2: #4c6472;
  --ink-3: #7b93a1;

  --accent: #046a8d;
  --accent-soft: #d3e8f1;
  --on-accent: #ffffff;

  --rise: #0f6e4f;

  --f-display: "Hahmlet", "Nanum Myeongjo", Georgia, serif;
  --f-body: "IBM Plex Sans KR", "Malgun Gothic", system-ui, sans-serif;
  --f-mono: "IBM Plex Mono", "D2Coding", ui-monospace, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #07141a;
    --surface: #0e2028;
    --surface-2: #16303a;
    --line: #1e3b47;
    --line-soft: #172f39;

    --ink: #e8f1f5;
    --ink-2: #9db6c2;
    --ink-3: #6c8794;

    --accent: #3fb6de;
    --accent-soft: #0f3341;
    --on-accent: #04161d;

    --rise: #48c795;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
}

.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px 80px; }

/* ── 상단 바 ─────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.brand {
  font-family: var(--f-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}
.brand span { color: var(--accent); }
.topnav { display: flex; gap: 20px; }
.topnav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  text-decoration: none;
}
.topnav a:hover, .topnav a:focus-visible { color: var(--accent); }

/* ── 히어로 ──────────────────────────── */
.hero { padding: 64px 0 48px; display: flex; flex-direction: column; gap: 20px; }
.eyebrow {
  font-family: var(--f-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
h1 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 6.5vw, 3.4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}
.lede {
  font-size: 1.0625rem;
  font-weight: 300;
  color: var(--ink-2);
  max-width: 48ch;
  margin: 0;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 4px;
  text-decoration: none;
}
.cta:hover, .cta:focus-visible { opacity: 0.9; }
.cta.pending { background: var(--surface-2); color: var(--ink-3); cursor: default; }

/* ── 기능 ────────────────────────────── */
h2 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.4vw, 1.85rem);
  letter-spacing: -0.015em;
  line-height: 1.3;
  margin: 0 0 8px;
  text-wrap: balance;
}
section { padding-top: 56px; }
.sec-sub { color: var(--ink-2); font-weight: 300; margin: 0 0 26px; max-width: 56ch; }

.features {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}
.feat {
  background: var(--surface);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.feat-k {
  font-family: var(--f-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.feat-t { font-weight: 600; font-size: 1rem; }
.feat-d { font-size: 14px; color: var(--ink-2); line-height: 1.65; }

/* ── 문서 본문 (약관·방침) ───────────── */
.doc { padding-top: 48px; }
.doc h1 { font-size: clamp(1.8rem, 5vw, 2.4rem); }
.doc .updated {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  margin: 10px 0 0;
}
.doc h2 {
  font-size: 1.15rem;
  margin: 44px 0 10px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.doc h3 { font-size: 1rem; font-weight: 600; margin: 24px 0 6px; font-family: var(--f-body); }
.doc p { margin: 0 0 1em; color: var(--ink-2); }
.doc ul { margin: 0 0 1em; padding-left: 1.3em; color: var(--ink-2); }
.doc li { margin-bottom: 6px; }
.doc strong { color: var(--ink); font-weight: 600; }

.callout {
  background: var(--accent-soft);
  border-radius: 4px;
  padding: 18px 20px;
  margin: 0 0 1.5em;
  color: var(--accent);
  font-size: 14.5px;
  line-height: 1.7;
}
.callout strong { color: var(--accent); font-weight: 700; }

.fill {
  background: #ffe9a8;
  color: #5a4200;
  padding: 1px 7px;
  border-radius: 3px;
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 600;
}
@media (prefers-color-scheme: dark) {
  .fill { background: #4a3a05; color: #ffd970; }
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
  margin: 0 0 1.5em;
}
th {
  text-align: left;
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink-2);
  vertical-align: top;
}
td:first-child { color: var(--ink); font-weight: 600; white-space: nowrap; }

/* ── 푸터 ────────────────────────────── */
footer {
  margin-top: 72px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.9;
}
footer a { color: var(--ink-2); text-decoration: none; border-bottom: 1px solid var(--line); }
footer a:hover, footer a:focus-visible { color: var(--accent); border-bottom-color: var(--accent); }
.biz { margin-top: 14px; font-size: 12.5px; line-height: 1.8; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }