/* site.css: 세러너티 공통 스타일(pages 담당). 모바일 우선(360~430px), Pretendard, 흰 배경·차콜 텍스트·남색 기본·주황 포인트 1색 */

:root {
  --bg: #fff;
  --ink: #1d2230;          /* 본문 차콜 */
  --ink-2: #454b5a;
  --muted: #6b7180;
  --line: #e5e7ec;
  --soft: #f6f7f9;
  --brand: #2a2350;        /* 짙은 남색(기본 버튼) */
  --brand-soft: #eeedf6;
  --accent: #d9692b;       /* 포인트(표지 주황) — 구매·가격 강조에만 */
  --accent-soft: #fdf1e9;
  --ok: #17633a;
  --ok-soft: #e9f7ee;
  --err: #a11a1a;
  --err-soft: #fdecec;
  --warn-soft: #fff7d6;
  --radius: 12px;
  --wrap: 640px;
  --font: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  word-break: keep-all;
  overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--brand); text-underline-offset: 3px; }
h1, h2, h3 { line-height: 1.35; letter-spacing: -0.01em; color: var(--ink); }
h1 { font-size: 24px; margin: 8px 0 12px; }
h2 { font-size: 19px; margin: 28px 0 10px; }
h3 { font-size: 17px; margin: 20px 0 8px; }
p { margin: 0 0 12px; }
small { font-size: 13px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 20px 0; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

main { display: block; min-height: 60vh; }
/* viewport-fit=cover(layout.tsx): 가로 모드 노치·둥근 모서리 아래로 글이 들어가지 않게 좌우 안전 영역만큼 띄운다 */
body:not(.bare) { padding-left: env(safe-area-inset-left); padding-right: env(safe-area-inset-right); }
/* 기본 본문 폭(우선순위 0: 각 모듈 클래스가 덮어쓴다) */
:where(main > section, main > article, .wrap) { max-width: var(--wrap); margin: 0 auto; padding: 20px 16px 40px; }
:where(body.bare main > section, body.bare main > article) { max-width: none; padding: 0; }

/* ───── 테스트 환경 띠 ───── */
.env-banner { background: #3a3a3a; color: #fff; font-size: 12px; text-align: center; padding: 4px 8px; letter-spacing: .02em; }

/* ───── 헤더 ───── */
.site-header {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  height: 56px; padding: 0 16px;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(1.4) blur(8px);
}
.site-header .logo { flex: none; white-space: nowrap; font-weight: 800; font-size: 18px; letter-spacing: .14em; color: var(--ink); text-decoration: none; text-transform: uppercase; }
.site-header nav { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.site-header nav::-webkit-scrollbar { display: none; }
.site-header nav a { flex: none; display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; padding: 0 8px; color: var(--ink-2); text-decoration: none; font-size: 14px; font-weight: 600; border-radius: 8px; }
.site-header nav a:hover { background: var(--soft); color: var(--ink); }

/* 랜딩·상세(landing.js): 아래로 읽어 내려가면 위로 숨고, 위로 되돌리면 다시 내려온다 */
.site-header.auto-hide { transition: transform .25s ease; }
.site-header.auto-hide.is-hidden { transform: translateY(-100%); box-shadow: none; }
@media (prefers-reduced-motion: reduce) { .site-header.auto-hide { transition: none; } }

/* 좁은 화면: 로고 한 줄 + 메뉴 한 줄(아임웹 메뉴 이름이 길어 한 줄이면 로그인·내 서재가 화면 밖으로 밀린다) */
@media (max-width: 599px) {
  .site-header { flex-wrap: wrap; height: auto; padding: 0 10px; gap: 0; }
  .site-header .logo { line-height: 44px; padding: 0 6px; font-size: 17px; }
  .site-header nav { flex: 1 0 100%; justify-content: space-between; }
  .site-header nav a { padding: 0 6px; }
}

/* ───── 푸터 ───── */
.site-footer { background: var(--soft); border-top: 1px solid var(--line); padding: 24px 16px 32px; color: var(--muted); font-size: 12.5px; line-height: 1.7; }
.site-footer > * { max-width: var(--wrap); margin-left: auto; margin-right: auto; }
.footer-links { display: flex; flex-wrap: wrap; gap: 4px 14px; margin-bottom: 12px; }
.footer-links { gap: 0 14px; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--ink-2); text-decoration: none; font-size: 13px; }
.footer-links b { color: var(--ink); }
.site-footer .biz { margin: 0 auto; }
.site-footer .biz a { color: var(--muted); }
.site-footer .biz .nw { white-space: nowrap; }

/* ───── 버튼 ───── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 48px; padding: 0 20px;
  border: 1px solid #cfd2da; border-radius: 10px;
  background: #fff; color: var(--ink);
  font: inherit; font-size: 16px; font-weight: 700; line-height: 1.2;
  text-decoration: none; text-align: center; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background .15s, border-color .15s, opacity .15s;
}
.btn:hover { background: var(--soft); }
.btn:active { opacity: .85; }
.btn[disabled], .btn.is-disabled { opacity: .5; pointer-events: none; }
.btn-block, :where(form, .notice) .btn { width: 100%; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: #221c43; }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: #c55d22; }
.btn-ghost { background: transparent; border-color: #cfd2da; color: var(--ink); }
.btn-kakao { background: #fee500; border-color: #fee500; color: #191919; }
.btn-kakao:hover { background: #f5dc00; }
.btn-danger { background: #c62828; border-color: #c62828; color: #fff; }
.btn-small { min-height: 48px; padding: 0 12px; font-size: 14px; width: auto !important; }
.btn-lg { min-height: 56px; font-size: 17px; }
.btn + .btn { margin-top: 8px; }
.link { background: none; border: 0; padding: 0; min-height: 44px; color: var(--brand); font: inherit; text-decoration: underline; cursor: pointer; }

/* ───── 폼 ───── */
:where(label) { display: block; font-size: 14px; font-weight: 600; margin: 12px 0 4px; }
:where(input[type=text], input[type=email], input[type=tel], input[type=number], input[type=password], input[type=search], input[type=url], select, textarea) {
  display: block; width: 100%;
  min-height: 48px; padding: 10px 14px;
  border: 1px solid #c8cbd3; border-radius: 10px;
  background: #fff; color: var(--ink);
  font: inherit; font-size: 16px; /* iOS 확대 방지 */
}
:where(textarea) { min-height: 120px; line-height: 1.6; resize: vertical; }
:where(input, select, textarea):focus { border-color: var(--brand); outline: 2px solid rgba(42, 35, 80, .15); outline-offset: 0; }
:where(input):disabled { background: var(--soft); color: var(--muted); }
:where(fieldset) { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px 14px; margin: 12px 0; }
:where(legend) { font-weight: 700; font-size: 15px; padding: 0 4px; }
/* 체크박스 줄(label.ck). 결제 화면 묶음 <section class="ck">(checkout.css)와 이름이 같아 label로 한정한다 */
label.ck { display: flex; align-items: flex-start; gap: 10px; font-weight: 400; font-size: 15px; min-height: 44px; margin: 0; padding: 9px 0; }
label.ck input { width: 20px; height: 20px; margin: 3px 0 0; flex: none; accent-color: var(--brand); }
.row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.hint { color: var(--muted); font-size: 14px; }
.error, .alert-error { background: var(--err-soft); color: var(--err); border-radius: 10px; padding: 10px 12px; font-size: 14px; }
.ok, .alert-ok { background: var(--ok-soft); color: var(--ok); border-radius: 10px; padding: 10px 12px; font-size: 14px; }
.warn, .alert-warn { background: var(--warn-soft); border-radius: 10px; padding: 10px 12px; font-size: 14px; }

/* ───── 카드·표·배지 ───── */
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; background: #fff; margin: 12px auto; }
.card-soft { background: var(--soft); border-color: transparent; }
.st, .badge { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: #eef0f3; color: var(--ink-2); white-space: nowrap; }
.st-paid { background: #e3f1ff; color: #0b4f8a; }
.st-refunded, .st-canceled, .st-failed { background: #f2f2f2; color: #777; }
.st-pending, .st-vbank_pending { background: var(--warn-soft); color: #6b5300; }
:where(table) { border-collapse: collapse; width: 100%; font-size: 14px; }
:where(th, td) { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1px solid var(--line); }
:where(th) { font-weight: 700; color: var(--ink); }
.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.kv { display: grid; grid-template-columns: 7.5em 1fr; gap: 0; margin: 8px 0 12px; font-size: 14px; border-top: 1px solid var(--line); }
.kv dt, .kv dd { margin: 0; padding: 10px 4px; border-bottom: 1px solid var(--line); }
.kv dt { color: var(--muted); font-weight: 600; }
:where(details) { border: 1px solid var(--line); border-radius: var(--radius); padding: 0 14px; margin: 8px 0; background: #fff; }
:where(details) > summary { cursor: pointer; padding: 14px 24px 14px 0; font-weight: 700; list-style: none; position: relative; min-height: 48px; }
:where(details) > summary::-webkit-details-marker { display: none; }
:where(details) > summary::after { content: '+'; position: absolute; right: 0; top: 12px; font-size: 20px; color: var(--muted); font-weight: 400; }
:where(details[open]) > summary::after { content: '–'; }
:where(details) > :not(summary) { margin-top: 0; }

/* ───── 안내 화면(Notice) ───── */
.notice { text-align: center; padding-top: 48px !important; }
.notice h1 { font-size: 22px; }
.notice > div { color: var(--ink-2); margin-bottom: 20px; }
.notice-inline { background: var(--soft); border-radius: 10px; padding: 12px 14px; color: var(--ink-2); }

/* ───── 랜딩 공통 ───── */
.landing { max-width: var(--wrap); margin: 0 auto; padding: 0 0 24px; text-align: center; }
.l-img { display: block; width: auto; max-width: 100%; height: auto; margin: 0 auto; } /* 원본보다 키우지 않는다 */
mark.hl { background: linear-gradient(transparent 58%, var(--accent-soft) 0); color: var(--accent); font-weight: 800; padding: 0 2px; }

/* 하단 고정 구매 바 */
.buy-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  background: rgba(255, 255, 255, .97); border-top: 1px solid var(--line);
  padding: 10px max(16px, env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  box-shadow: 0 -6px 18px rgba(20, 22, 30, .06);
  transition: transform .2s ease;
}
.buy-bar.is-hidden { transform: translateY(110%); }
.buy-bar-in { max-width: var(--wrap); margin: 0 auto; display: flex; align-items: center; gap: 12px; }
.buy-bar-price { flex: 1; min-width: 0; text-align: left; line-height: 1.3; }
.buy-bar-price small { display: block; color: var(--muted); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.buy-bar-price b { font-size: 18px; color: var(--accent); }
.buy-bar .btn { width: auto; flex: none; min-width: 132px; }
main:has(.buy-bar) { padding-bottom: 84px; }

/* ───── 랜딩 A(아임웹 대조군) ───── */
.landing-a { padding: 0 0 24px; }
.landing-a .l-img { margin: 0 auto; }
.landing-a .l-img + .l-img { margin-top: 0; }
.la-p, .la-h, .la-q, .la-key, .la-cap, .la-emoji, .la-small { padding: 0 20px; }
.la-p { margin: 28px 0; font-size: 17px; color: var(--ink-2); line-height: 1.8; }
.la-p strong { color: var(--ink); }
.la-h { margin: 40px 0 24px; font-size: 24px; font-weight: 800; line-height: 1.45; }
.la-q { margin: 28px 16px; padding: 18px 16px; background: var(--soft); border-radius: 18px; font-size: 18px; font-weight: 700; color: var(--ink); }
.la-key { margin: 16px 0 28px; font-size: 30px; font-weight: 900; color: var(--accent); line-height: 1.35; }
.la-cap { margin: 10px 0 16px; font-size: 14px; color: var(--muted); font-weight: 600; }
.la-emoji { margin: 20px 0; font-size: 22px; letter-spacing: .05em; }
.la-small { font-size: 13px; color: var(--muted); }
.la-title { margin: 28px 20px; }
.la-title p { margin: 0; color: var(--muted); font-size: 15px; font-weight: 600; }
.la-title h2 { margin: 4px 0 0; font-size: 26px; font-weight: 900; }
.la-vs { margin: 32px 20px; display: grid; gap: 6px; }
.la-vs p { margin: 0; }
.la-vs-lead { color: var(--muted); font-size: 15px; }
.la-vs-a, .la-vs-b { padding: 14px; border-radius: var(--radius); font-weight: 800; font-size: 18px; }
.la-vs-a { background: var(--soft); color: var(--ink-2); }
.la-vs-b { background: var(--accent-soft); color: var(--accent); }
.la-vs-x { font-weight: 900; color: var(--muted); letter-spacing: .1em; }
.la-patterns { margin: 36px 16px; padding: 22px 16px; background: var(--brand); color: #fff; border-radius: 16px; }
.la-label { margin: 0 0 12px; font-size: 13px; letter-spacing: .1em; color: #c9c5e6; font-weight: 700; }
.la-pattern { display: grid; gap: 4px; padding: 12px 0; border-top: 1px solid rgba(255, 255, 255, .14); }
.la-pattern b { font-size: 20px; color: #ffd2b5; }
.la-pattern span { font-size: 15px; color: #e8e6f5; }
.la-stats { margin: 28px 20px; padding: 20px 16px; background: var(--soft); border-radius: 16px; }
.la-stats p { margin: 6px 0 0; font-size: 16px; }
.la-stats b { color: var(--accent); font-size: 20px; }
.la-gauge { position: relative; height: 10px; background: #e3e5ea; border-radius: 999px; margin: 0 28px 10px 0; }
.la-gauge span { display: block; height: 100%; background: var(--accent); border-radius: 999px; }
.la-gauge em { position: absolute; right: -28px; top: -6px; font-style: normal; font-size: 12px; color: var(--muted); }
.la-method { margin: 24px 16px; padding: 20px 16px; text-align: left; border: 1px solid var(--line); border-radius: 16px; }
.la-method h3 { margin: 0 0 6px; font-size: 16px; }
.la-method p { font-size: 15px; color: var(--ink-2); }
.la-checks { list-style: none; margin: 16px 20px 28px; padding: 0; text-align: left; display: grid; gap: 8px; }
.la-checks li { background: var(--soft); border-radius: 10px; padding: 12px 14px; font-size: 15px; font-weight: 600; }
.landing .toc { margin: 24px 16px; }
.la-price { margin: 36px 16px; padding: 24px 18px; border: 2px solid var(--accent); border-radius: 18px; background: #fff; scroll-margin-top: 72px; }
.la-price p { margin: 10px 0; }
.la-price-title { font-size: 20px; font-weight: 900; }
.la-rounds { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 6px; }
.la-rounds li { padding: 10px; border-radius: 10px; background: var(--soft); font-size: 15px; }
.la-rounds li.done { color: #9a9ea8; text-decoration: line-through; }
.la-rounds li.now { display: grid; gap: 2px; background: var(--accent-soft); color: var(--ink); }
.la-rounds li.now b { font-size: 17px; }
.la-left { color: var(--accent); font-weight: 800; }
.la-normal { color: var(--muted); font-size: 16px; }
.la-early { font-size: 17px; font-weight: 700; }
.la-early b { font-size: 32px; color: var(--accent); font-weight: 900; }
.la-perday { font-weight: 700; }
.la-perday small { color: var(--muted); font-weight: 400; }
.la-plus { font-size: 24px; font-weight: 900; color: var(--muted); }
.la-bonus { background: var(--soft); border-radius: 14px; padding: 14px; }
.la-bonus-title { font-size: 18px; font-weight: 900; }
.la-note { font-size: 13px; color: var(--muted); }
.la-rise { font-weight: 800; }
.la-next { font-size: 18px; }
.la-next b { color: var(--err); }
.la-cheap b { font-size: 19px; }
.la-secret { font-size: 13px; color: var(--muted); }
.la-price .btn, .la-final .btn { width: 100%; margin-top: 8px; }
@media (max-width: 380px) { .la-price { margin-left: 12px; margin-right: 12px; padding-left: 14px; padding-right: 14px; } .la-bonus { padding: 14px 10px; } }
.la-final { margin: 24px 16px 8px; }
.la-final p { margin: 6px 0; font-size: 17px; }

/* 목차(랜딩·상세 공용) */
.toc { text-align: left; background: var(--soft); border-radius: 16px; padding: 18px 16px; }
.toc-title { margin: 0 0 10px; font-size: 18px; font-weight: 900; }
.toc-title span { color: var(--muted); font-weight: 600; font-size: 14px; margin-left: 4px; }
.toc-parts { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.toc-parts li { padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 15px; font-weight: 600; }
.toc-sub { margin: 14px 0 6px; font-weight: 800; color: var(--accent); font-size: 15px; }
.toc-detail { margin: 0; padding-left: 18px; color: var(--ink-2); font-size: 14px; display: grid; gap: 2px; }

/* ───── 랜딩 B(새 구성) ───── */
.landing-b { text-align: left; }
.lb-hero { padding: 28px 20px 8px; text-align: center; }
.lb-scenes { list-style: none; margin: 0 0 18px; padding: 0; display: grid; gap: 8px; text-align: left; }
.lb-scenes li { padding: 14px 16px; background: var(--soft); border-radius: 14px; font-size: 16px; color: var(--ink); line-height: 1.55; }
.lb-turn { margin: 18px 4px 6px; color: var(--ink-2); font-size: 15px; }
.lb-cover { max-width: 340px; margin: 4px auto 0; border-radius: 12px; }
.lb-title { margin: 14px 0 4px; font-size: 27px; font-weight: 900; }
.lb-title small { display: block; font-size: 14px; font-weight: 600; color: var(--muted); letter-spacing: .02em; }
.lb-sub { color: var(--ink-2); font-size: 15px; }
.lb-cta { display: grid; gap: 8px; margin: 18px 0 8px; }
.lb-cta .btn + .btn, .lb-last .btn + .btn { margin-top: 0; }
.lb-sec { padding: 28px 20px; border-top: 1px solid var(--line); }
.lb-sec h2 { margin: 0 0 12px; font-size: 22px; font-weight: 800; }
.lb-sec p { color: var(--ink-2); }
.lb-eyebrow { margin: 0 0 4px !important; color: var(--accent) !important; font-weight: 800; font-size: 13px; letter-spacing: .06em; }
.lb-quiet { color: var(--ink) !important; font-weight: 600; }
.lb-fig { margin: 16px 0 0; }
.lb-fig img { border-radius: 12px; border: 1px solid var(--line); }
.lb-fig figcaption { margin-top: 6px; color: var(--muted); font-size: 13px; text-align: center; }
.lb-preview .btn { margin-top: 16px; width: 100%; }
.lb-reviews-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.lb-reviews-head a { display: inline-flex; align-items: center; min-height: 44px; font-size: 13px; color: var(--muted); }
.lb-refund > a { display: inline-flex; align-items: center; min-height: 44px; }
.review-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.review { border: 1px solid var(--line); border-radius: 14px; padding: 16px; background: #fff; }
.review blockquote { margin: 8px 0; font-size: 16px; font-weight: 600; color: var(--ink); line-height: 1.6; }
.review-badge { display: inline-block; font-size: 12.5px; font-weight: 700; color: var(--ok); background: var(--ok-soft); padding: 2px 8px; border-radius: 999px; }
.review-who { margin: 0 !important; font-size: 13px; color: var(--muted) !important; }
.spec th { width: 34%; }
.spec th small { font-weight: 500; color: var(--muted); }
.spec td { color: var(--ink-2); }
.spec td.num { color: var(--ink); font-weight: 700; }
.lb-faq details p { color: var(--ink-2); padding-bottom: 6px; }
.lb-refund ul { margin: 0 0 10px; padding-left: 18px; color: var(--ink-2); }
.lb-last { text-align: center; display: grid; gap: 8px; }

/* ───── /book 상품 상세 ───── */
.book { max-width: var(--wrap); margin: 0 auto; padding: 0 0 32px; }
.book-top { display: block; position: relative; }
/* 상품 형태 표시: 휴대폰은 표지 오른쪽 위에 겹쳐, 넓은 화면은 표지 오른쪽 설명 칸 맨 위 */
.book-kind { position: absolute; top: 10px; right: 10px; margin: 0; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.book-kind span { padding: 4px 10px; border-radius: 999px; background: rgba(255, 255, 255, .94); color: var(--brand); font-size: 12.5px; font-weight: 700; line-height: 1.4; box-shadow: 0 1px 4px rgba(0, 0, 0, .14); }
.refund-note { margin: 12px 0 0; text-align: center; font-size: 15px; font-weight: 700; color: var(--ink); }
.book > .refund-note { margin: 28px 16px 0; padding: 14px 16px; background: var(--accent-soft); border-radius: var(--radius); }
.book-cover { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: cover; background: var(--soft); }
.book-info { padding: 16px 16px 0; }
.book-name { font-size: 21px; margin: 4px 0 10px; }
.book-price { padding: 0 0 12px; border-bottom: 1px solid var(--line); }
.book-compare { margin: 0; color: var(--muted); font-size: 14px; }
.book-sale { margin: 2px 0 0; display: flex; align-items: baseline; gap: 8px; }
.book-sale em { font-style: normal; color: var(--accent); font-weight: 900; font-size: 22px; }
.book-sale b { font-size: 26px; font-weight: 900; }
.book-facts { margin: 12px 0; padding-left: 18px; font-size: 14px; color: var(--ink-2); }
.buy-form { margin: 8px 0 0; }
.opt { padding: 8px 12px 12px; }
.opt-item { display: flex; align-items: center; gap: 10px; min-height: 52px; margin: 6px 0 0; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; font-weight: 500; cursor: pointer; }
.opt-item input { width: 20px; height: 20px; flex: none; accent-color: var(--accent); }
.opt-item span { flex: 1; font-size: 15px; }
.opt-item b { flex: none; font-size: 15px; color: var(--ink); }
.opt-item:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.buy-total { display: flex; justify-content: space-between; align-items: baseline; margin: 14px 2px; font-weight: 600; }
.buy-total b { font-size: 22px; color: var(--accent); }
#buy { scroll-margin-top: 360px; } /* /book#buy 로 오면 옵션까지 함께 보이게 */
.book-sec { padding: 20px 16px 0; }
.book-sec h2 { margin-top: 12px; }
.book-sec .la-checks { margin: 0 0 12px; }

/* ───── 칼럼 ───── */
.columns h1 { margin-bottom: 4px; }
.col-list { list-style: none; margin: 16px 0 0; padding: 0; border-top: 1px solid var(--line); }
.col-list li a { display: grid; gap: 4px; padding: 16px 2px; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.col-list b { font-size: 17px; line-height: 1.45; }
.col-excerpt { color: var(--muted); font-size: 14px; }
.col-meta { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; margin: 0; }
.col-badge { font-size: 12.5px; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: #eef0f3; color: var(--ink-2); }
.col-badge.v-members { background: var(--brand-soft); color: var(--brand); }
.col-badge.v-buyers { background: var(--accent-soft); color: var(--accent); }
.column h1 { font-size: 24px; margin-top: 8px; }
.col-body { font-size: 17px; line-height: 1.85; color: var(--ink); }
.col-body h2 { font-size: 20px; margin-top: 32px; }
.col-body h3 { font-size: 18px; }
.col-body img { display: block; margin: 16px auto; border-radius: 10px; }
.col-body blockquote { margin: 16px 0; padding: 4px 0 4px 14px; border-left: 3px solid var(--accent); color: var(--ink-2); }
.col-body ul, .col-body ol { padding-left: 22px; }
.col-body hr { margin: 28px 0; }
.col-body code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; padding: 1px 5px; border-radius: 4px; background: #f3f3f6; }
.col-body sup, .col-body sub { font-size: .75em; line-height: 0; }
.col-gate { margin: 24px 0; padding: 24px 18px; text-align: center; background: var(--soft); border-radius: 16px; }
.col-gate .btn { width: 100%; margin-top: 8px; }
.col-back { margin-top: 32px; font-size: 14px; }
.col-back a { display: inline-flex; align-items: center; min-height: 44px; }

/* ───── 법적 페이지·소개 ───── */
.legal h1 { font-size: 22px; }
.legal-body { font-size: 14.5px; color: var(--ink-2); line-height: 1.8; }
.legal-body h2 { font-size: 16px; margin: 24px 0 6px; color: var(--ink); }
.legal-body ul { padding-left: 18px; }
.legal-lead { font-size: 17px; color: var(--ink); background: var(--accent-soft); border-radius: 12px; padding: 14px 16px; }
.legal-nav { display: flex; flex-wrap: wrap; gap: 0 14px; margin-top: 32px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 14px; }
.legal-nav a { display: inline-flex; align-items: center; min-height: 44px; }
.about ul { padding-left: 18px; }

/* ───── 넓은 화면 ───── */
@media (min-width: 720px) {
  h1 { font-size: 28px; }
  .site-header { padding: 0 24px; }
  .site-header nav a { padding: 8px 12px; font-size: 15px; }
  .book-top { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: auto 1fr; gap: 10px 24px; padding: 24px 16px 0; }
  .book-cover { border-radius: 12px; grid-column: 1; grid-row: 1 / span 2; }
  .book-kind { position: static; grid-column: 2; grid-row: 1; justify-content: flex-start; }
  .book-kind span { background: var(--brand-soft); box-shadow: none; font-size: 13px; }
  .book-info { padding: 0; grid-column: 2; grid-row: 2; }
  #buy { scroll-margin-top: 120px; }
}

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

@media print {
  .site-header, .site-footer, .buy-bar, .env-banner { display: none !important; }
}