/* 틈틈이 지원 페이지. 색은 웹앱(web/styles.css)과 같다. */
:root {
  --bg: #edf0f4;
  --surface: #ffffff;
  --ink: #121926;
  --muted: #435066;
  --line: #d5dce5;
  --accent: #2243b8;
  --accent-soft: #e3e9ff;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1016;
    --surface: #151b24;
    --ink: #e8ecf2;
    --muted: #a9b4c3;
    --line: #2d3642;
    --accent: #8fa7ff;
    --accent-soft: #1c2645;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR",
    "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  word-break: keep-all;
  overflow-wrap: anywhere;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 40px 16px 56px;
}

a {
  color: var(--accent);
}

.hero {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.hero img {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  flex: none;
}

.hero h1 {
  margin: 0;
  font-size: 26px;
  line-height: 1.25;
}

.hero p {
  margin: 4px 0 0;
  color: var(--muted);
}

.card {
  background: var(--surface);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 16px;
}

.card h2 {
  margin: 0 0 12px;
  font-size: 19px;
}

.card h3 {
  margin: 18px 0 6px;
  font-size: 16px;
}

.card p {
  margin: 0 0 10px;
}

.card p:last-child,
.card ol:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

ol,
ul {
  margin: 0 0 10px;
  padding-left: 22px;
}

li + li {
  margin-top: 4px;
}

.note {
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 15px;
}

details {
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

details:last-child {
  padding-bottom: 0;
}

summary {
  cursor: pointer;
  font-weight: 600;
}

details p {
  margin: 8px 0 0;
  color: var(--muted);
}

.contact {
  font-size: 17px;
  font-weight: 600;
}

footer {
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

footer a {
  color: var(--muted);
}

.updated {
  color: var(--muted);
  margin: 0 0 16px;
}