/* 냥자리 정적 사이트 공통 스타일 — Phase 3b
 * 색상 토큰은 Flutter 앱과 통일:
 *   #2A1F1A — 본문 (딥 브라운)
 *   #FFF8F2 — 배경 (크림)
 *   #6B5F5A — 보조
 *   #8A7E78 — 메타
 * 접근성: 색상만으로 정보 구분 금지. 경계는 border 두께·레이블로 보강 */

@font-face {
  font-family: "DungGeunMo";
  src: url("/fonts/DungGeunMo.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: #FFF8F2;
  color: #2A1F1A;
  font-family: "DungGeunMo", "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

.page { max-width: 720px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }

header.site-header { border-bottom: 2px solid #2A1F1A; padding-bottom: 1rem; margin-bottom: 2rem; }
header.site-header h1 { margin: 0 0 0.5rem; font-size: 1.75rem; letter-spacing: 0.08em; }
header.site-header .tagline { margin: 0; color: #6B5F5A; font-size: 0.95rem; }

nav.site-nav { display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; margin-top: 1rem; font-size: 0.95rem; }
nav.site-nav a { color: #2A1F1A; text-decoration: underline; text-underline-offset: 0.25em; }
nav.site-nav a[aria-current="page"] { text-decoration: none; font-weight: bold; }

main h2 { font-size: 1.3rem; margin: 2.5rem 0 1rem; letter-spacing: 0.04em; border-left: 4px solid #2A1F1A; padding-left: 0.6rem; }
main h3 { font-size: 1.1rem; margin: 1.75rem 0 0.75rem; }
main p { margin: 0 0 1rem; }
main ul, main ol { margin: 0 0 1.25rem; padding-left: 1.5rem; }
main li { margin: 0.4rem 0; }

.cta {
  display: inline-block; margin: 2rem 0 0; padding: 0.75rem 1.5rem;
  background: #2A1F1A; color: #FFF8F0; text-decoration: none;
  letter-spacing: 0.08em; border: 2px solid #2A1F1A;
}
.cta:focus-visible, .cta:hover {
  background: #FFF8F2; color: #2A1F1A;
  outline: 2px dashed #2A1F1A; outline-offset: 2px;
}

.hero { display: flex; flex-direction: column; align-items: flex-start; gap: 1rem; margin-bottom: 2rem; }
.hero img { width: 96px; height: 96px; image-rendering: pixelated; image-rendering: -moz-crisp-edges; }

.rule-card { border: 2px solid #2A1F1A; padding: 1rem 1.25rem; margin: 1rem 0; background: #fff; }
.rule-card h3 { margin-top: 0; }
.rule-card .label { display: inline-block; padding: 0.1rem 0.5rem; margin-right: 0.5rem; border: 1.5px solid #2A1F1A; font-size: 0.85rem; }

footer.site-footer { margin-top: 4rem; padding-top: 1.25rem; border-top: 1px solid rgba(42, 31, 26, 0.2); color: #6B5F5A; font-size: 0.85rem; }
footer.site-footer a { color: #6B5F5A; }

@media (max-width: 480px) {
  .page { padding: 1.25rem 1rem 3rem; }
  header.site-header h1 { font-size: 1.4rem; }
  main h2 { font-size: 1.15rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

@media (prefers-contrast: more) {
  body { color: #000; background: #fff; }
  .cta { background: #000; color: #fff; }
}

/* 기법 가이드용 미니 보드 — 4×4 또는 5×5 */
.mini-board {
  display: inline-grid;
  gap: 2px;
  padding: 4px;
  background: #2A1F1A;
  margin: 0.5rem 0 1rem;
  font-family: inherit;
}
.mini-board.n4 { grid-template-columns: repeat(4, 2rem); grid-auto-rows: 2rem; }
.mini-board.n5 { grid-template-columns: repeat(5, 2rem); grid-auto-rows: 2rem; }
.mini-board .cell {
  background: #FFF8F2; display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; border: 1px solid rgba(42, 31, 26, 0.15);
}
.mini-board .cell.cat { background: #F7E8D4; }
.mini-board .cell.marked { color: #6B5F5A; }
.mini-board .cell.region-a { background: #FFF8F2; }
.mini-board .cell.region-b { background: #E8DED2; }
.mini-board .cell.region-c { background: #D4C7B8; }
.mini-board .cell.region-d { background: #C0B8AC; }
.mini-board .cell.region-e { background: #ADA59A; }
.mini-board .cell.region-r { background: #F4C9B8; }
.mini-board .cell.region-g { background: #B8DBC9; }
.mini-board .cell.region-u { background: #D9D2E9; }
.mini-board .cell.highlight { outline: 2px solid #2A1F1A; outline-offset: -2px; }
.mini-board + .caption { font-size: 0.85rem; color: #6B5F5A; margin-top: -0.5rem; }

.technique-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem; margin: 1.5rem 0;
}
.technique-grid .card {
  border: 2px solid #2A1F1A; padding: 1rem 1.25rem;
  text-decoration: none; color: #2A1F1A; background: #fff;
}
.technique-grid .card:focus-visible, .technique-grid .card:hover {
  background: #2A1F1A; color: #FFF8F0; outline: 2px dashed #FFF8F2; outline-offset: 2px;
}
.technique-grid .card .meta { color: #6B5F5A; font-size: 0.85rem; margin-top: 0.5rem; }
.technique-grid .card:focus-visible .meta,
.technique-grid .card:hover .meta { color: #FFF8F0; }

.breadcrumb { font-size: 0.9rem; color: #6B5F5A; margin: 0 0 1rem; }
.breadcrumb a { color: #6B5F5A; text-decoration: underline; text-underline-offset: 0.25em; }
.breadcrumb .sep { margin: 0 0.3rem; }

@media (max-width: 480px) {
  .mini-board.n4 { grid-template-columns: repeat(4, 1.5rem); grid-auto-rows: 1.5rem; }
  .mini-board.n5 { grid-template-columns: repeat(5, 1.5rem); grid-auto-rows: 1.5rem; }
}