/* ==========================================================
   김엄마 관리형독서실 · 하위 페이지 공통 스타일
   ========================================================== */
:root{
  --navy:#0a2463;
  --navy-dk:#051438;
  --navy-lt:#1e4b8e;
  --accent:#3e92cc;
  --ink:#0a1628;
  --muted:#555;
  --faint:#8a8f98;
  --line:#e4e7ee;
  --bg:#f5f7fb;
  --white:#fff;
  --warn:#c0392b;
  --shadow:0 4px 24px rgba(10,22,40,.08);
  --shadow-lg:0 16px 48px rgba(10,22,40,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans KR',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  color:var(--ink);background:var(--white);line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.narrow{max-width:820px}

/* ---------- 헤더 ---------- */
.hd{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
}
.hd-in{display:flex;align-items:center;justify-content:space-between;gap:20px;height:66px}
.hd-logo{font-size:17px;font-weight:800;color:var(--navy);text-decoration:none;letter-spacing:-.4px;white-space:nowrap}
.hd-nav{display:flex;gap:22px;list-style:none;flex-wrap:wrap}
.hd-nav a{font-size:14px;font-weight:500;color:var(--muted);text-decoration:none;white-space:nowrap}
.hd-nav a:hover,.hd-nav a[aria-current="page"]{color:var(--navy);font-weight:700}
.hd-cta{
  padding:9px 20px;background:var(--navy);color:#fff;border-radius:7px;
  font-size:13px;font-weight:700;text-decoration:none;white-space:nowrap;
}
.hd-cta:hover{background:var(--navy-lt)}
@media(max-width:820px){
  .hd-in{height:auto;padding:12px 0;flex-wrap:wrap}
  .hd-nav{gap:14px;order:3;width:100%;padding-top:6px;border-top:1px solid var(--line)}
  .hd-nav a{font-size:13px}
}

/* ---------- 브레드크럼 ---------- */
.crumb{font-size:13px;color:var(--faint);padding:18px 0 0}
.crumb a{color:var(--faint);text-decoration:none}
.crumb a:hover{color:var(--navy)}
.crumb span{margin:0 7px}

/* ---------- 페이지 헤드 ---------- */
.phead{padding:44px 0 52px;border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:2.4px;
  text-transform:uppercase;color:var(--accent);margin-bottom:14px;
}
.phead h1{
  font-size:clamp(30px,4.6vw,46px);font-weight:900;letter-spacing:-1.2px;
  line-height:1.28;color:var(--navy);word-break:keep-all;
}
.phead .sub{margin-top:16px;font-size:17px;color:var(--muted);max-width:60ch;word-break:keep-all}

/* ---------- 섹션 ---------- */
.sec{padding:64px 0}
.sec-alt{background:var(--bg)}
.sec h2{
  font-size:clamp(22px,3vw,30px);font-weight:800;letter-spacing:-.7px;
  color:var(--navy);margin-bottom:10px;word-break:keep-all;
}
.sec h3{font-size:19px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.sec p{color:var(--muted);word-break:keep-all}
.sec-desc{font-size:16px;color:var(--muted);margin-bottom:34px;max-width:62ch}

/* ---------- 표 ---------- */
.tbl-wrap{overflow-x:auto;border-radius:14px;box-shadow:var(--shadow);background:#fff}
table.price{width:100%;border-collapse:collapse;min-width:520px}
table.price thead{background:var(--navy)}
table.price th{
  padding:18px 14px;color:#fff;font-size:14px;font-weight:700;text-align:center;
}
table.price td{
  padding:20px 14px;text-align:center;border-bottom:1px solid var(--line);font-size:15px;
}
table.price tbody tr:last-child td{border-bottom:none}
table.price .rowhead{
  text-align:left;font-weight:800;color:var(--navy);background:var(--bg);
  padding-left:22px;white-space:nowrap;
}
table.price .amt{font-weight:800;font-size:19px;letter-spacing:-.5px;font-variant-numeric:tabular-nums}
table.price .amt small{font-size:13px;font-weight:500;color:var(--muted);margin-left:2px}
.tag{
  display:inline-block;margin-left:7px;padding:2px 8px;border-radius:4px;
  background:#f97316;color:#fff;font-size:11px;font-weight:700;vertical-align:middle;
}

/* ---------- 노트 목록 ---------- */
.notes{list-style:none;margin-top:26px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:24px 28px}
.notes li{position:relative;padding-left:18px;margin-bottom:9px;font-size:14.5px;color:var(--muted)}
.notes li:last-child{margin-bottom:0}
.notes li::before{content:'';position:absolute;left:0;top:12px;width:6px;height:6px;
  border-radius:50%;background:var(--accent)}

/* ---------- 교시 타임라인 (시그니처) ---------- */
.ruler{margin:8px 0 6px;border-left:2px solid var(--line);padding-left:0}
.ruler li{list-style:none;position:relative;padding:0 0 0 26px;margin:0}
.ruler li::before{
  content:'';position:absolute;left:-7px;top:16px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:2px solid var(--accent);
}
.ruler li.rest::before{border-color:var(--line);width:9px;height:9px;left:-5.5px;top:18px}
.ruler .row{display:flex;align-items:baseline;gap:14px;padding:9px 0;border-bottom:1px dashed var(--line)}
.ruler li:last-child .row{border-bottom:none}
.ruler .t{font-variant-numeric:tabular-nums;font-weight:700;color:var(--navy);
  font-size:14px;min-width:106px;white-space:nowrap}
.ruler .n{font-size:15px;font-weight:600}
.ruler li.rest .n,.ruler li.rest .t{color:var(--faint);font-weight:500}
.ruler .memo{font-size:13px;color:var(--faint);margin-left:auto;white-space:nowrap}
@media(max-width:600px){
  .ruler .memo{display:none}
  .ruler .t{min-width:92px;font-size:13px}
}

/* ---------- 카드 ---------- */
.cards{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 24px}
.card-navy{background:var(--navy);color:#fff;border-color:var(--navy)}
.card-navy h3,.card-navy .k{color:#fff}
.card-navy p{color:rgba(255,255,255,.82)}
.card .k{font-size:12px;font-weight:800;letter-spacing:1.6px;color:var(--accent);
  text-transform:uppercase;margin-bottom:10px;display:block}
.card p{font-size:14.5px;line-height:1.8}

/* ---------- 규칙 목록 ---------- */
.rules{list-style:none}
.rules li{position:relative;padding-left:28px;margin-bottom:13px;font-size:15px;color:var(--muted);line-height:1.8}
.rules li::before{content:'✓';position:absolute;left:0;top:0;color:var(--accent);font-weight:800}
.rules li.warn::before{content:'!';color:#e0a800}
.rules li.no::before{content:'✕';color:var(--warn)}

/* ---------- 벌점 ---------- */
.pen{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:820px){.pen{grid-template-columns:repeat(2,1fr)}}
.pen div{background:#fff;border:1px solid var(--line);border-top:4px solid var(--navy);
  border-radius:12px;padding:24px 18px;text-align:center}
.pen b{display:block;font-size:32px;font-weight:900;color:var(--navy);
  letter-spacing:-1px;margin-bottom:8px;font-variant-numeric:tabular-nums}
.pen span{font-size:14px;color:var(--muted);line-height:1.6}

/* ---------- 후기 ---------- */
.rv{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px 30px;
  break-inside:avoid;margin-bottom:20px}
.rv-top{display:flex;align-items:center;gap:15px;margin-bottom:18px}
.rv-ini{width:52px;height:52px;border-radius:50%;background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:21px;font-weight:800;flex-shrink:0}
.rv-who h3{font-size:17px;font-weight:800;margin:0}
.rv-who p{font-size:13.5px;color:var(--faint);margin:1px 0 0}
.rv-badge{display:inline-block;margin-top:7px;padding:4px 12px;border-radius:100px;
  background:var(--navy);color:#fff;font-size:12px;font-weight:700}
.rv-body{font-size:14.8px;color:var(--muted);line-height:1.95}
.rv-body strong{color:var(--navy);font-weight:700}
.rv-cols{columns:2;column-gap:20px}
@media(max-width:820px){.rv-cols{columns:1}}

/* ---------- 사실 지표 ---------- */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:14px;overflow:hidden}
@media(max-width:760px){.facts{grid-template-columns:repeat(2,1fr)}}
.facts div{background:#fff;padding:28px 18px;text-align:center}
.facts b{display:block;font-size:27px;font-weight:900;color:var(--navy);
  letter-spacing:-.9px;font-variant-numeric:tabular-nums}
.facts span{font-size:13.5px;color:var(--muted);margin-top:5px;display:block}

/* ---------- CTA ---------- */
.cta{background:var(--navy);color:#fff;padding:64px 0;text-align:center}
.cta h2{font-size:clamp(21px,3vw,29px);font-weight:800;color:#fff;margin-bottom:12px;
  letter-spacing:-.6px;word-break:keep-all}
.cta p{color:rgba(255,255,255,.8);margin-bottom:28px;font-size:15.5px}
.btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:15px 32px;border-radius:8px;font-size:15px;
  font-weight:700;text-decoration:none;transition:.2s}
.btn-w{background:#fff;color:var(--navy)}
.btn-w:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-o{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.45)}
.btn-o:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-n{background:var(--navy);color:#fff}
.btn-n:hover{background:var(--navy-lt)}

/* ---------- 다음 읽을거리 ---------- */
.next{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
@media(max-width:760px){.next{grid-template-columns:1fr}}
.next a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:22px 22px;text-decoration:none;transition:.2s}
.next a:hover{border-color:var(--navy);transform:translateY(-2px);box-shadow:var(--shadow)}
.next b{display:block;font-size:16px;font-weight:700;color:var(--navy);margin-bottom:5px}
.next span{font-size:13.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{padding:20px 34px 20px 0;font-size:16px;font-weight:700;cursor:pointer;
  position:relative;list-style:none;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';position:absolute;right:6px;top:17px;font-size:22px;
  font-weight:400;color:var(--accent)}
.faq details[open] summary::after{content:'−'}
.faq .a{padding:0 0 22px;font-size:15px;color:var(--muted);line-height:1.9}

/* ---------- 푸터 ---------- */
.ft{background:var(--navy-dk);color:rgba(255,255,255,.72);padding:50px 0 36px;font-size:14px}
.ft-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;margin-bottom:34px}
@media(max-width:760px){.ft-grid{grid-template-columns:1fr;gap:26px}}
.ft b.name{display:block;color:#fff;font-size:17px;font-weight:800;margin-bottom:10px}
.ft h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:12px}
.ft ul{list-style:none}
.ft li{margin-bottom:8px}
.ft a{color:rgba(255,255,255,.72);text-decoration:none}
.ft a:hover{color:#fff}
.ft .copy{border-top:1px solid rgba(255,255,255,.14);padding-top:22px;
  font-size:12.5px;color:rgba(255,255,255,.42);line-height:1.9}

/* ---------- 접근성 ---------- */
a:focus-visible,summary:focus-visible,.btn:focus-visible{
  outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}


/* ---------- 선택 가능한 카드 ---------- */
.pick a.card{display:block;text-decoration:none;color:inherit;transition:.2s;position:relative}
.pick a.card:hover{border-color:var(--navy);transform:translateY(-3px);box-shadow:var(--shadow)}
.pick a.card .go{display:inline-block;margin-top:16px;font-size:14px;font-weight:700;color:var(--navy)}
.pick a.card:hover .go{color:var(--accent)}