/* 언제볼래 web pages: the app's own look — one calm green, quiet neutrals,
   Pretendard, generous line height for long Korean text. */

:root {
  --accent: #1f6b58;
  --accent-ink: #19564a;
  --accent-soft: #e6efec;
  --canvas: #f2f4f3;
  --surface: #ffffff;
  --ink: #141a18;
  --secondary: #545d59;
  --tertiary: #737c78;
  --separator: #e3e7e5;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #5fae98;
    --accent-ink: #7cc2ae;
    --accent-soft: #1b2a26;
    --canvas: #0b0f0e;
    --surface: #171d1b;
    --ink: #eef2f0;
    --secondary: #b4bdb9;
    --tertiary: #8d9692;
    --separator: #262f2d;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding-inline: 20px;
  background: var(--canvas);
  color: var(--ink);
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Noto Sans KR", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

a { color: var(--accent-ink); text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: 720px; margin: 0 auto; padding-block: 40px 72px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.07em;
  text-decoration: none;
}
.brand::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

h1 {
  margin: 28px 0 6px;
  font-size: 30px;
  line-height: 1.3;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.meta { margin: 0 0 28px; color: var(--tertiary); font-size: 14px; }

.doc {
  background: var(--surface);
  border-radius: 20px;
  padding: 8px 24px 24px;
}

.doc h2 {
  margin: 32px 0 8px;
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: -0.01em;
}
.doc h2:first-child { margin-top: 20px; }

.doc p, .doc li { color: var(--secondary); }
.doc p { margin: 0 0 10px; }
.doc ol, .doc ul { margin: 0 0 10px; padding-left: 1.3em; }
.doc li { margin-bottom: 4px; }
.doc strong { color: var(--ink); font-weight: 650; }

.lead {
  margin: 20px 0 0;
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--ink);
}

.table-scroll { overflow-x: auto; margin: 6px 0 14px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 520px; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--separator); }
th { color: var(--ink); font-weight: 650; white-space: nowrap; }
td { color: var(--secondary); }

.toc { margin: 0 0 24px; display: flex; flex-wrap: wrap; gap: 8px; }
.toc a {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface);
  font-size: 14px;
  text-decoration: none;
}

footer {
  margin-top: 36px;
  color: var(--tertiary);
  font-size: 13px;
  line-height: 1.8;
}
footer nav { display: flex; gap: 16px; margin-bottom: 8px; }
footer a { color: var(--secondary); }

@media (max-width: 480px) {
  h1 { font-size: 26px; }
  .doc { padding: 4px 18px 18px; border-radius: 16px; }
}