/* 스쿨 캘린더 사이트 — textfloor 브랜드(시안 19/20과 동일 팔레트·타이포) */
:root {
  --cream: #F2EFE8; --surface: #FBFAF6;
  --sage: #3A5145; --sage-press: #2C3E34;
  --clay: #8C5A44; --clay-press: #714638;
  --ink: #211D17;
  --muted: #7C766A; --faint: #A9A294;
  --line: #DBD4C5; --line-soft: #E7E1D5;
  --sage-soft: #E5E9E5; --clay-soft: #F0E4DD;
  --maxw: 780px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--cream); color: var(--ink);
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.floor { height: 1.5px; background: var(--sage); }

/* ===== 상단 바 ===== */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(242,239,232,.9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav .inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; height: 60px; display: flex; align-items: center; justify-content: space-between; }
.nav .menu { display: flex; gap: 20px; font-size: 13.5px; color: var(--muted); }
.nav .menu a:hover { color: var(--sage); }
.nav .menu a.active { color: var(--sage); font-weight: 600; }
.nav .brand { font-family: 'Space Mono', monospace; font-size: 17px; font-weight: 700; letter-spacing: .10em; text-transform: uppercase; color: var(--sage); }
.nav .brand:hover { color: var(--sage-press); }

/* ===== 허브 히어로 ===== */
.hero { padding: 76px 0 52px; text-align: center; }
.hero .logo { margin-bottom: 28px; }
.hero h1 { font-size: clamp(28px, 5vw, 40px); font-weight: 700; letter-spacing: -.03em; color: var(--sage); line-height: 1.2; }
.hero .desc { font-size: clamp(15px, 2.4vw, 18px); color: var(--muted); margin-top: 16px; }
.hero .floor { width: 56px; margin: 32px auto 0; }
.badges { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.badge { display: inline-flex; align-items: center; gap: 8px; border: 1.5px solid var(--ink); border-radius: 10px; padding: 10px 16px; font-size: 13px; font-weight: 600; color: var(--ink); }
.badge[aria-disabled="true"] { opacity: .42; cursor: default; }
.quicklinks { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-top: 36px; font-size: 14px; }
.quicklinks a { color: var(--clay); border-bottom: 1px solid transparent; padding-bottom: 2px; }
.quicklinks a:hover { border-color: var(--clay); }

/* ===== 허브 기능 카드 ===== */
.feat { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 8px 0 36px; }
.feat .card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 22px 20px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.feat .card:hover { transform: translateY(-4px); border-color: var(--sage); box-shadow: 0 10px 26px rgba(33, 29, 23, .09); }
.feat h3 { font-size: 15px; color: var(--sage); margin-bottom: 6px; }
.feat p { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ===== 모션: 로드 인(살짝 떠오르며 페이드) ===== */
@keyframes rise-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.hero > * { animation: rise-in .6s cubic-bezier(.22, .61, .36, 1) backwards; }
.hero .logo { animation-delay: .02s; }
.hero h1 { animation-delay: .10s; }
.hero .desc { animation-delay: .18s; }
.hero .badges { animation-delay: .26s; }
.hero .floor { animation-delay: .30s; }
.hero .quicklinks { animation-delay: .36s; }
.feat .card { animation: rise-in .6s cubic-bezier(.22, .61, .36, 1) backwards; }
.feat .card:nth-child(1) { animation-delay: .42s; }
.feat .card:nth-child(2) { animation-delay: .50s; }
.feat .card:nth-child(3) { animation-delay: .58s; }

/* 접근성: 모션 최소화 설정 존중 */
@media (prefers-reduced-motion: reduce) {
  .hero > *, .feat .card { animation: none; }
  .feat .card { transition: none; }
  .feat .card:hover { transform: none; }
}

/* ===== 페이지 헤더(support) ===== */
.page-head { padding: 44px 0 4px; }
.page-head .eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .2em; color: var(--clay); font-family: 'Space Mono', monospace; }
.page-head h1 { font-size: clamp(24px, 4vw, 32px); font-weight: 700; color: var(--sage); margin-top: 12px; letter-spacing: -.02em; }
.page-head .lead { font-size: 15px; color: var(--muted); margin-top: 12px; line-height: 1.75; }

/* ===== 문의 카드 ===== */
.contact { background: var(--sage); color: var(--cream); border-radius: 14px; padding: 24px 26px; margin: 28px 0 8px; }
.contact .label { font-size: 12px; letter-spacing: .16em; color: #A9C0B2; font-weight: 600; font-family: 'Space Mono', monospace; }
.contact a.mail { display: inline-block; font-size: clamp(17px, 3.4vw, 21px); font-weight: 700; margin-top: 10px; color: var(--cream); border-bottom: 1px solid rgba(242,239,232,.5); }
.contact .note { font-size: 13px; color: #CBD5CD; margin-top: 12px; }

/* ===== FAQ ===== */
.faq { margin: 8px 0; }
.faq h2 { font-size: 18px; color: var(--sage); margin: 30px 0 14px; }
details { border: 1px solid var(--line); border-radius: 10px; background: var(--surface); margin-bottom: 10px; }
details[open] { border-color: var(--sage); }
summary { cursor: pointer; padding: 15px 18px; font-size: 15px; font-weight: 600; color: var(--ink); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; color: var(--clay); font-family: 'Space Mono', monospace; font-size: 18px; flex-shrink: 0; }
details[open] summary::after { content: '\2013'; }
details .body { padding: 0 18px 16px; font-size: 14px; color: var(--muted); line-height: 1.8; }

/* ===== 법적 문서 prose ===== */
.prose { padding: 12px 0 16px; font-size: 14.5px; color: var(--ink); }
.prose h1 { font-size: clamp(22px, 4vw, 28px); color: var(--sage); letter-spacing: -.02em; margin-bottom: 6px; }
.prose h2 { font-size: 18px; color: var(--sage); margin: 34px 0 12px; }
.prose h3 { font-size: 15px; color: var(--sage); margin: 22px 0 8px; }
.prose p { margin: 10px 0; line-height: 1.8; }
.prose strong { color: var(--ink); }
.prose ul, .prose ol { margin: 10px 0 10px 20px; }
.prose li { margin: 6px 0; line-height: 1.75; }
.prose blockquote { border-left: 3px solid var(--clay); background: var(--clay-soft); padding: 12px 16px; margin: 14px 0; border-radius: 0 8px 8px 0; font-size: 13.5px; }
.prose blockquote p { margin: 4px 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 12.5px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.prose th { background: var(--sage-soft); color: var(--sage); font-weight: 600; }
.prose hr { border: none; border-top: 1px solid var(--line); margin: 28px 0; }
.prose a { color: var(--clay); text-decoration: underline; }
.prose code { font-family: 'Space Mono', monospace; background: var(--line-soft); padding: 1px 5px; border-radius: 4px; font-size: .9em; }

/* ===== 푸터 ===== */
footer { background: var(--ink); color: #CFC8B8; padding: 36px 0 32px; margin-top: 52px; }
footer .inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 18px; }
footer .m { font-size: 13px; color: #EDE7DA; margin-top: 8px; }
footer .ft-r { text-align: right; font-size: 12px; line-height: 2; color: #9A9283; }
footer .ft-r a { border-bottom: 1px solid transparent; }
footer .ft-r a:hover { color: #EDE7DA; }
footer .dom { font-family: 'Space Mono', monospace; }

@media (max-width: 640px) {
  .feat { grid-template-columns: 1fr; }
  footer .inner { flex-direction: column; align-items: flex-start; }
  footer .ft-r { text-align: left; }
}