/* 무지개다리 너머 — 공개 웹 페이지 공통 스타일
   빌드 단계 없음. 모든 페이지가 /assets/site.css 를 불러온다. */

:root {
  --sky: #BFE3F5;
  --sky-soft: #E4F3FB;
  --hill: #9BCB7A;
  --hill-soft: #E3F1D8;
  --ink: #2B2B2B;
  --ink-soft: #5E5A55;
  --paper: #FCFAF5;
  --card: #FFFFFF;
  --line: #E6E0D4;
  --warm: #F6E7C8;
  --link: #2F6F8F;
  --radius: 16px;
  --measure: 40rem;
  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
    "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.75;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* 수채화처럼 번지는 하늘 머리 */
.sky {
  position: relative;
  padding: 2.5rem 1rem 4.5rem;
  background:
    radial-gradient(120% 80% at 15% 10%, rgba(255, 255, 255, 0.85) 0%, rgba(255, 255, 255, 0) 45%),
    radial-gradient(90% 70% at 85% 25%, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0) 50%),
    linear-gradient(180deg, var(--sky) 0%, var(--sky-soft) 100%);
  overflow: hidden;
}
.sky::after {
  /* 언덕 */
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -3.5rem;
  height: 6.5rem;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  background:
    radial-gradient(60% 90% at 30% 20%, rgba(255, 255, 255, 0.35) 0%, rgba(255, 255, 255, 0) 60%),
    var(--hill);
  opacity: 0.9;
}
.sky.small { padding: 1.5rem 1rem 3.5rem; }
.sky.small::after { height: 4.5rem; bottom: -2.75rem; }

.sky-inner {
  position: relative;
  z-index: 1;
  max-width: var(--measure);
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 1.75rem;
  height: 1.75rem;
  flex: none;
}

.sky h1 {
  margin: 1.25rem 0 0.5rem;
  font-size: clamp(1.6rem, 6vw, 2.2rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
}
.sky .lede {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

h2 {
  margin: 2.5rem 0 0.75rem;
  font-size: 1.3rem;
  line-height: 1.4;
  letter-spacing: -0.01em;
}
h3 {
  margin: 1.75rem 0 0.5rem;
  font-size: 1.1rem;
  line-height: 1.45;
}
p, ul, ol, table { margin: 0 0 1rem; }
ul, ol { padding-left: 1.25rem; }
li { margin: 0.25rem 0; }
li > ul, li > ol { margin: 0.25rem 0 0.5rem; }

a { color: var(--link); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--link);
  outline-offset: 2px;
  border-radius: 6px;
}

strong { font-weight: 700; }
small, .muted { color: var(--ink-soft); }

hr {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 2.5rem 0;
}

/* 카드 */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 0.5rem;
  margin: 0 0 1rem;
}
.card h2:first-child,
.card h3:first-child { margin-top: 0; }

.features {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}
.features li {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}
.features b { display: block; margin-bottom: 0.15rem; }

/* 버튼(스토어 링크 등). 브랜드 로고는 쓰지 않는다. */
.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.25rem 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  border: 1.5px solid var(--ink);
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { background: var(--sky-soft); }
.btn.primary {
  background: var(--ink);
  color: var(--paper);
}
.btn.primary:hover { background: #444; }
.btn[hidden] { display: none; }

/* 표 */
.table-wrap {
  overflow-x: auto;
  margin: 0 0 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
}
.table-wrap table { margin: 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  line-height: 1.6;
}
th, td {
  text-align: left;
  vertical-align: top;
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--line);
}
th { background: var(--hill-soft); font-weight: 600; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
.table-wrap table { min-width: 34rem; }
.table-wrap table.wide { min-width: 52rem; }

/* 채워 넣을 자리 */
.ph {
  background: var(--warm);
  border-radius: 4px;
  padding: 0 0.25em;
  font-weight: 600;
  color: #6B4A12;
}

/* 초안 안내 띠 — 공개 전에 통째로 지운다 */
.draft-banner {
  background: #FFF4D6;
  border-bottom: 1px solid #EBD39A;
  color: #5A4410;
  font-size: 0.9rem;
  line-height: 1.6;
  padding: 0.6rem 1rem;
  text-align: center;
}

/* 안내 상자 */
.note {
  background: var(--sky-soft);
  border-radius: 12px;
  padding: 0.9rem 1rem;
  margin: 0 0 1rem;
  font-size: 0.97rem;
}
.note.hill { background: var(--hill-soft); }
.note p:last-child { margin-bottom: 0; }

/* 목차 */
.toc {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 0 0 2rem;
  font-size: 0.97rem;
}
.toc ol { margin: 0.25rem 0 0; }

/* 자주 묻는 질문 */
details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  margin: 0 0 0.75rem;
  padding: 0 1rem;
}
summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.9rem 0;
  list-style-position: outside;
}
details[open] summary { border-bottom: 1px solid var(--line); margin-bottom: 0.75rem; }
details > :last-child { margin-bottom: 1rem; }

/* 초대 코드 */
.code {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  background: var(--card);
  border: 1px dashed var(--ink-soft);
  border-radius: 8px;
  padding: 0.2rem 0.6rem;
}

/* 아래쪽 */
.site-footer {
  border-top: 1px solid var(--line);
  background: #F7F3EA;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.site-footer .inner {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.5rem 1rem 2.5rem;
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-bottom: 0.75rem;
}
.site-footer a { color: var(--ink); }
.site-footer p { margin: 0.25rem 0; }

@media (min-width: 48rem) {
  body { font-size: 1.075rem; }
  .sky { padding: 3.5rem 1.5rem 5.5rem; }
  .features { grid-template-columns: 1fr 1fr; }
  main { padding: 2.5rem 1.5rem 4rem; }
}

@media print {
  .draft-banner, .site-footer nav, .buttons { display: none; }
  .sky { background: none; padding: 0 0 1rem; }
  .sky::after { display: none; }
  body { background: #fff; font-size: 11pt; }
  a { color: inherit; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}