/* =========================================================================
   운필 — 문고본 리뉴얼 시안 · 내 연애 소설 (love_story_민음사ver.html 전용)
   minumsa.css(토큰·바탕) 다음에 불러온다.
   책: 책등 + 평면 표지(그림 영역 / 제목·낙관 / 띠지). 목차·폼은 얇은 괘선.
   그라데이션·둥근 모서리·그림자 없음. 모바일 기준 → 넓은 화면 확장.
   ========================================================================= */

/* 본문 열 — 리더와 같은 폭 */
.ls-root .page-hero, .ls-root .ls-body { max-width: 680px; }

/* ---------- 개발용 상태 미리보기 (실서비스 비노출) ---------- */
.devbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 8px var(--g); background: var(--ink); color: #EFECE4; font-size: 12px;
}
.devbar .lbl { color: #A7A296; letter-spacing: .08em; }
.devbar .seg { display: inline-flex; border: 1px solid #6A665D; }
.devbar .seg button {
  appearance: none; border: 0; background: transparent; color: #CFC9BC; cursor: pointer;
  font-family: var(--f-serif); font-size: 12px; padding: 5px 12px;
}
.devbar .seg button + button { border-left: 1px solid #6A665D; }
.devbar .seg button.active { background: #EFECE4; color: var(--ink); }
.devbar .hint { display: none; margin-left: auto; color: #8C877C; font-size: 11.5px; }

/* ---------- 상태 분기 (서버가 data-state를 정함) ---------- */
.ls-root .state { display: none; }
.ls-root[data-state="guest"] .state-guest,
.ls-root[data-state="paid"] .state-paid { display: block; }

/* ---------- 머리말 ---------- */
.page-hero { padding-top: 40px; padding-bottom: 8px; }
.page-hero h1 { font-size: clamp(32px, 9vw, 44px); font-weight: 600; line-height: 1.25; letter-spacing: -.02em; }
.page-desc { margin-top: 12px; font-size: 15.5px; line-height: 1.85; color: var(--ink-soft); }

/* =========================================================================
   책 — 3D 문고본 (앞표지 + 왼쪽 책등 + 위쪽 종이 단면)
   표지가 정면(z=0)이고 두께 --t 만큼 뒤로 들어간다. 면은 단색과 얇은 선만, 그림자 없음.
   ========================================================================= */
.ls-root .wrap:has(> .book) { perspective: 1400px; }
.book {
  --t: 30px;                                   /* 책 두께 */
  position: relative; width: fit-content;
  margin: 44px auto 52px; padding-left: var(--t); /* 책등 자리 */
  transform-style: preserve-3d;
  transform: rotateX(9deg) rotateY(28deg);    /* 오른쪽이 앞으로 → 왼쪽 책등·위 단면이 보임 */
  transition: transform .6s ease;
}
.book:hover { transform: rotateX(4deg) rotateY(12deg); }


/* 책등 — 표지 왼쪽 모서리에서 뒤로 접힌 면 */
.book-spine {
  position: absolute; top: 0; bottom: 0; left: 0; width: var(--t);
  transform-origin: right center; transform: rotateY(-90deg);
  display: flex; align-items: center; justify-content: center;
  background: var(--ink); color: var(--sheet);
  border: 1px solid var(--rule-ink);
}
/* 위쪽 단면 — 표지 윗변에서 뒤로 접힌 종이 묶음 */
.book::before {
  content: ''; position: absolute; left: var(--t); right: 0; top: calc(var(--t) * -1); height: var(--t);
  transform-origin: bottom center; transform: rotateX(90deg);
  background: var(--paper, #FFFDF7); border: 1px solid var(--rule-ink);
}
@media (prefers-reduced-motion: reduce) { .book { transition: none; } }
.book-spine .t { writing-mode: vertical-rl; font-size: 12px; font-weight: 600; letter-spacing: .16em; }
.book-cover {
  width: min(250px, 66vw); aspect-ratio: 2 / 3;
  display: flex; flex-direction: column;
  background: var(--sheet); border: 1px solid var(--rule-ink);
}
.book-cover .cover-art {
  --vol: var(--el-fire);                      /* Vol.01 연애 = 火 */
  flex: 1 1 auto; min-height: 0; background: var(--vol);
  border-bottom: 1px solid var(--rule-ink);
}
.cover-paper { padding: 12px 14px 12px; }
.cv-issue {
  display: block; font-family: var(--f-num); font-weight: 600; font-size: 11.5px;
  letter-spacing: .12em; color: var(--ink-soft); font-variant-numeric: lining-nums;
}
.cv-title-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; margin-top: 4px; }
.cv-title { font-size: 21px; font-weight: 600; line-height: 1.3; letter-spacing: -.02em; }
/* 初稿 — 둥근 도장 대신 네모 낙관, 세로쓰기 */
.cv-stamp {
  flex: none; writing-mode: vertical-rl; letter-spacing: .12em; line-height: 1;
  padding: 5px 4px; border: 1.5px solid var(--coral);
  font-size: 12px; font-weight: 700; color: var(--coral);
}
.cv-meta { display: block; margin-top: 8px; font-size: 10.5px; color: var(--ink-soft); }

/* 띠지 — 표지 아랫단을 두르는 종이 띠 */
.book-cover .cover-obi {
  display: block; margin-top: 0;          /* 랜딩 히어로 띠지 규칙(flex·위 여백) 해제 */
  padding: 9px 14px 10px; background: var(--cream-deep);
  border-top: 1px solid var(--rule-ink);
}
.cover-obi .obi-h { font-size: 13px; font-weight: 700; line-height: 1.45; }
.cover-obi .obi-s { margin-top: 2px; font-size: 10.5px; color: var(--ink-soft); }

/* =========================================================================
   본문
   ========================================================================= */
.ls-body { padding-top: 0; padding-bottom: 64px; }
.ls-lead { font-size: 17px; line-height: 2; }

/* 차례 — 장 번호 / 제목 / 소개 */
.ls-toc { margin-top: 36px; border-top: 1px solid var(--rule-ink); }
.ls-toc .ch {
  display: grid; grid-template-columns: 44px 1fr; column-gap: 12px;
  padding: 15px 0 16px; border-bottom: 1px solid var(--rule);
}
.ls-toc .ch .n { font-size: 14px; font-weight: 600; color: var(--ink-soft); line-height: 1.6; }
.ls-toc .ch .tt { font-size: 17px; font-weight: 600; line-height: 1.5; }
.ls-toc .ch .ds { margin-top: 2px; font-size: 13.5px; line-height: 1.7; color: var(--ink-soft); }

/* 결제완료 — 상단 안내 */
.paid-top {
  display: flex; flex-direction: column; align-items: flex-start; gap: 16px;
  margin-bottom: 32px; padding: 20px 0 22px;
  border-top: 1px solid var(--rule-ink); border-bottom: 1px solid var(--rule-ink);
}
.paid-top .pt-txt strong { font-size: 18px; font-weight: 700; }
.paid-top .pt-txt p { margin-top: 4px; font-size: 14px; color: var(--ink-soft); }
.paid-top .btn { margin-top: 0; }

/* 맛보기 받기 블록 */
.ls-cta-block { margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--rule-ink); }
.ls-cta-block .btn { margin-top: 0; }
.ls-cta-block .cta-sub { margin-top: 14px; font-size: 14px; color: var(--ink-soft); }
.ls-form { display: none; }
.ls-cta-block.open .ls-form { display: block; }
.ls-cta-block.open .cta-open { display: none; }

/* ---------- 입력 폼 ---------- */
.fgroup { margin-bottom: 24px; }
.fgroup label, .fgroup-head label { display: block; margin-bottom: 8px; font-size: 14.5px; font-weight: 700; }
.fgroup-head { display: flex; align-items: baseline; justify-content: space-between; }
.ls-form input[type="text"], .ls-form select {
  width: 100%; padding: 13px 12px; border: 1px solid var(--rule-ink); border-radius: 0;
  background: var(--paper, #FFFDF7); color: var(--ink);
  font-family: var(--f-serif); font-size: 15px; outline: none; appearance: none; -webkit-appearance: none;
}
.ls-form select {
  padding-right: 30px; cursor: pointer;
  background: var(--paper, #FFFDF7) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6' fill='none' stroke='%232C2C2A'/%3E%3C/svg%3E") no-repeat right 12px center;
}
.ls-form input[type="text"]::placeholder { color: #A9A291; }
.ls-form input[type="text"]:focus, .ls-form select:focus { border-color: var(--coral); }
.ls-form input[type="text"]:disabled { background: transparent; color: #B9B2A0; border-color: var(--rule); }
.ls-form input.is-err { border-color: var(--coral); }
.form-err { margin: -8px 0 16px; font-size: 13.5px; color: var(--coral); }
.form-err[hidden] { display: none; }

.gender-toggle { display: inline-flex; border: 1px solid var(--rule-ink); }
.gt-btn {
  appearance: none; border: 0; background: transparent; color: var(--ink-soft); cursor: pointer;
  font-family: var(--f-serif); font-size: 14.5px; padding: 10px 22px;
}
.gt-btn + .gt-btn { border-left: 1px solid var(--rule-ink); }
.gt-btn.active { background: var(--ink); color: var(--sheet); font-weight: 600; }

.birth-row { display: grid; grid-template-columns: 1fr; gap: 8px; }
.time-unknown { display: inline-flex; align-items: center; gap: 8px; margin-top: 12px; font-size: 13.5px; color: var(--ink-soft); cursor: pointer; }
.fgroup .time-unknown { margin-bottom: 0; font-weight: 400; font-size: 13.5px; }
.time-unknown input { accent-color: var(--ink); width: 16px; height: 16px; }
.ls-form .submit-row { margin-top: 28px; }
.ls-form .submit-row .btn { margin-top: 0; width: 100%; justify-content: center; }

/* =========================================================================
   넓은 화면
   ========================================================================= */
@media (min-width: 640px) {
  :root { --g: 40px; }
  .masthead { height: 64px; padding-top: 22px; }
  .devbar .hint { display: inline; }
  .page-hero { padding-top: 64px; }
  .book { margin-top: 56px; margin-bottom: 64px; }
  .book { --t: 34px; }
  .book-spine .t { font-size: 13px; }
  .book-cover { width: 280px; }
  .cover-paper { padding: 14px 18px; }
  .cv-issue { font-size: 12.5px; }
  .cv-title { font-size: 24px; }
  .cv-stamp { font-size: 13px; }
  .cv-meta { font-size: 11.5px; }
  .book-cover .cover-obi { padding: 11px 18px 12px; }
  .cover-obi .obi-h { font-size: 14.5px; }
  .cover-obi .obi-s { font-size: 11.5px; }
  .ls-lead { font-size: 18px; }
  .ls-toc .ch { grid-template-columns: 64px 1fr; }
  .birth-row { grid-template-columns: 96px 1fr 96px; }
  .paid-top { flex-direction: row; align-items: center; justify-content: space-between; }
  .ls-form .submit-row .btn { width: auto; }
}