/* ══════════════════════════════════════════════════════════
   모바일 청첩장 — 연대기 전시
   모바일 폭 고정(430px), PC에서는 가운데 카드로 표시
   ══════════════════════════════════════════════════════════ */

:root {
  --stage-w: 430px;

  --bg:        #f7f4ef;
  --bg-deep:   #efe9e0;
  --ink:       #2a2622;
  --ink-mid:   #6b625a;
  --ink-soft:  #9a9088;
  --line:      #ddd4c8;
  --accent:    #9a6f4e;
  --groom:     #7d8b96;
  --bride:     #b58a7e;

  --serif: 'Nanum Myeongjo', 'Apple SD Gothic Neo', 'Noto Serif KR', serif;
  --sans:  'Pretendard', 'Apple SD Gothic Neo', system-ui, sans-serif;

  --topbar-h: 44px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg-deep);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
}

.stage {
  max-width: var(--stage-w);
  margin: 0 auto;
  background: var(--bg);
  min-height: 100vh;
  overflow: hidden;
  box-shadow: 0 0 60px rgba(0,0,0,.07);
}

/* PC에서 여백 확보 */
@media (min-width: 768px) {
  body { padding: 0; }
}

/* ═══ 상단 고정 바 ═══ */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--topbar-h);
  display: flex; justify-content: center;
  background: rgba(247,244,239,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, opacity .3s;
}
.topbar.is-top { opacity: 0; pointer-events: none; }
.topbar.is-scrolled { border-bottom-color: var(--line); }

.topbar__link {
  width: 100%; max-width: var(--stage-w);
  display: flex; align-items: center; justify-content: center; gap: 6px;
  text-decoration: none; color: var(--ink);
  font-size: 13px; letter-spacing: .01em;
}
.topbar__dow { font-size: 11px; color: var(--ink-mid); }
.topbar__dot { color: var(--ink-soft); }
.topbar__venue { color: var(--ink-mid); }
.topbar__arrow { color: var(--accent); font-size: 15px; }

/* ═══ 커버 ═══ */
.cover {
  padding: calc(var(--topbar-h) + 8px) 0 64px;
  text-align: center;
}
.photo--cover { border-radius: 0; }

.cover__meta { padding: 34px 24px 0; }
.cover__names {
  font-family: var(--serif);
  font-size: 26px; line-height: 1.5; letter-spacing: .04em;
}
.cover__names em {
  display: block;
  font-style: normal; font-size: 12px; letter-spacing: .3em;
  color: var(--ink-soft); margin: 6px 0;
}
.cover__date {
  margin-top: 18px;
  font-size: 13px; letter-spacing: .28em; color: var(--ink-mid);
}
.cover__dday {
  margin-top: 6px;
  font-size: 11px; letter-spacing: .12em; color: var(--ink-soft);
}

.cover__shortcut {
  display: inline-block; margin-top: 26px;
  padding: 11px 22px;
  border: 1px solid var(--accent); border-radius: 999px;
  color: var(--accent); text-decoration: none;
  font-size: 13px;
}
.cover__shortcut.is-hidden { display: none; }

.cover__scroll { margin-top: 40px; }
.cover__scroll span {
  display: block; width: 1px; height: 40px; margin: 0 auto;
  background: linear-gradient(var(--line), transparent);
}

/* ═══ 목차 ═══ */
.toc { padding: 56px 30px 64px; border-top: 1px solid var(--line); }

.toc__label {
  font-size: 10px; letter-spacing: .34em; color: var(--ink-soft);
  text-align: center; margin-bottom: 20px;
}
.toc__lead {
  font-family: var(--serif); font-size: 15px; line-height: 2;
  text-align: center; color: var(--ink-mid); margin-bottom: 34px;
}

.toc__list { list-style: none; }
.toc__item a {
  display: flex; align-items: baseline; gap: 12px;
  padding: 15px 2px;
  border-bottom: 1px solid var(--line);
  text-decoration: none; color: var(--ink);
}
.toc__num { font-family: var(--serif); font-size: 15px; color: var(--accent); }
.toc__title { font-family: var(--serif); font-size: 17px; letter-spacing: .02em; }
.toc__sub { margin-left: auto; font-size: 11px; color: var(--ink-soft); }

.toc__foot { margin-top: 26px; text-align: center; }
.toc__unread {
  font-size: 12px; color: var(--accent); margin-bottom: 14px;
  min-height: 18px;
}
.toc__unread b { font-weight: 600; }
.toc__expand {
  background: none; border: 1px solid var(--line); border-radius: 999px;
  padding: 9px 18px; font-size: 12px; color: var(--ink-mid);
  font-family: inherit; cursor: pointer;
}
.toc__expand.is-on { border-color: var(--accent); color: var(--accent); }

/* ═══ 챕터 ═══ */
.chapter { padding: 64px 0 72px; border-top: 1px solid var(--line); }

.chapter__head { text-align: center; padding: 0 30px 46px; }
.chapter__num  { font-family: var(--serif); font-size: 15px; color: var(--accent); }
.chapter__title{
  font-family: var(--serif); font-size: 24px; letter-spacing: .06em;
  margin-top: 6px;
}
.chapter__sub  { font-size: 12px; color: var(--ink-soft); margin-top: 8px; letter-spacing: .04em; }

/* 좌우 분리 레이아웃 (챕터 1) */
.track { position: relative; }
.track--split::before,
.track--split::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 1px;
}
.track--split::before { left: 8%;  background: var(--groom); opacity: .35; }
.track--split::after  { right: 8%; background: var(--bride); opacity: .35; }

/* 각 항목은 자기 선에 붙어서 안쪽으로 뻗는다.
   반대편 선을 넘지 않도록 폭과 여백을 맞춘다. */
.track--split .item { width: 76%; }
.track--split .item--groom { margin-left: 8%; }   /* 8% ~ 84% */
.track--split .item--bride { margin-left: 16%; }  /* 16% ~ 92% */

.track--split .item::before {
  content: ''; position: absolute; top: 3px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--bg); border: 1px solid currentColor;
}
.track--split .item--groom::before { left: -3.5px;  color: var(--groom); }
.track--split .item--bride::before { right: -3.5px; color: var(--bride); }

.item__side {
  font-size: 10px; letter-spacing: .2em; margin-bottom: 4px;
}
/* 노드 점과 겹치지 않도록 라벨을 안쪽으로 */
.item--groom .item__side { padding-left: 15px; }
.item--bride .item__side { padding-right: 15px; }
.item--groom .item__side { color: var(--groom); }
.item--bride .item__side { color: var(--bride); }
.item--bride { text-align: right; }
.item--bride .item__cap { text-align: right; }

/* 합류 구간 (챕터 2) */
.merge-mark { height: 96px; position: relative; margin-bottom: 8px; }
.merge-mark svg { width: 100%; height: 100%; display: block; }

/* 단일 레이아웃 (챕터 3·4) */
.track--single .item,
.track--merge .item { width: 82%; margin: 0 auto; }

/* ═══ 항목 ═══ */
.item { position: relative; margin-bottom: 54px; }
.item:last-child { margin-bottom: 0; }

.item__year {
  font-family: var(--serif); font-size: 12px; letter-spacing: .14em;
  color: var(--ink-soft); margin-bottom: 10px;
}

.photo {
  width: 100%; aspect-ratio: 3/4;
  background:
    repeating-linear-gradient(45deg, transparent 0 9px, rgba(0,0,0,.018) 9px 18px),
    linear-gradient(160deg, #e8e0d5, #ded4c6);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-soft); font-size: 11px; letter-spacing: .16em;
  border-radius: 2px;
}
.photo::after { content: attr(data-ratio); opacity: .55; }

.item--highlight .photo { box-shadow: 0 6px 28px rgba(154,111,78,.18); }

/* 캡션 — 항상 보이는 부분 */
.item__cap {
  margin-top: 12px;
  font-family: var(--serif); font-size: 14px; line-height: 1.85;
  white-space: pre-line;
}

/* 더보기 */
.item__more {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 8px; padding: 4px 0;
  background: none; border: none; cursor: pointer;
  font-family: inherit; font-size: 12px; color: var(--ink-soft);
}
.item--bride .item__more { flex-direction: row-reverse; }
.item__more .chev { transition: transform .25s; }
.item__more[aria-expanded="true"] .chev { transform: rotate(180deg); }

/* 미열람 점 */
.item__more .dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent);
}
.item__more[aria-expanded="true"] .dot,
.item__more.is-read .dot { display: none; }

/* 뒷이야기 */
.item__story {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows .32s ease;
}
.item__story.is-open { grid-template-rows: 1fr; }
.item__story > div { overflow: hidden; }
.item__story p {
  margin-top: 10px; padding: 13px 15px;
  background: rgba(154,111,78,.06);
  border-left: 2px solid rgba(154,111,78,.3);
  font-size: 13px; line-height: 1.9; color: var(--ink-mid);
}
.item--bride .item__story p {
  border-left: none; border-right: 2px solid rgba(154,111,78,.3);
}

/* ═══ 공통 섹션 ═══ */
.sect__label {
  font-size: 10px; letter-spacing: .34em; color: var(--ink-soft);
  text-align: center; margin-bottom: 26px;
}

.invite, .way, .rsvp, .gift, .guest {
  padding: 62px 30px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.invite__greeting {
  font-family: var(--serif); font-size: 15px; line-height: 2.2;
  color: var(--ink-mid);
}
.invite__greeting p + p { margin-top: 16px; }

.invite__family { margin-top: 40px; font-size: 13px; line-height: 2.2; }
.fam__parent { color: var(--ink-mid); }
.fam__rel { color: var(--ink-soft); font-size: 12px; margin: 0 4px; }
.invite__family b { font-family: var(--serif); font-weight: 400; font-size: 15px; }

.invite__when { margin-top: 34px; padding-top: 26px; border-top: 1px solid var(--line); }
.when__date { font-family: var(--serif); font-size: 16px; }
.when__place { font-size: 13px; color: var(--ink-mid); margin-top: 6px; }

/* 달력 */
.calendar { margin-top: 26px; }
.cal__grid {
  display: grid; grid-template-columns: repeat(7, 1fr);
  gap: 6px 0; font-size: 12px;
}
.cal__dow { color: var(--ink-soft); font-size: 10px; letter-spacing: .05em; }
.cal__dow:first-child, .cal__d.sun { color: var(--bride); }
.cal__d { padding: 5px 0; color: var(--ink-mid); }
.cal__d.is-day {
  color: #fff; font-weight: 600;
  background: var(--accent); border-radius: 50%;
  width: 28px; height: 28px; margin: 0 auto;
  display: flex; align-items: center; justify-content: center;
}

/* 지도 */
.map {
  height: 190px; border: 1px solid var(--line); border-radius: 2px;
  background: var(--bg-deep);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-soft); font-size: 12px;
}
.way__actions { display: flex; gap: 7px; margin-top: 12px; }
.way__actions .btn { flex: 1; }

.way__info {
  margin-top: 30px; text-align: left;
  display: grid; grid-template-columns: 54px 1fr; gap: 12px 10px;
  font-size: 13px;
}
.way__info dt { color: var(--accent); font-size: 12px; }
.way__info dd { color: var(--ink-mid); }

/* RSVP */
.rsvp__lead { font-family: var(--serif); font-size: 14px; line-height: 2; color: var(--ink-mid); margin-bottom: 22px; }
.rsvp__note, .guest__empty {
  margin-top: 14px; font-size: 11px; color: var(--ink-soft);
}

/* 계좌 */
.acc__group + .acc__group { margin-top: 12px; }
.acc__head {
  width: 100%; padding: 14px;
  background: none; border: 1px solid var(--line); border-radius: 2px;
  font-family: inherit; font-size: 13px; color: var(--ink); cursor: pointer;
  display: flex; justify-content: center; gap: 8px;
}
.acc__head .chev { color: var(--ink-soft); transition: transform .25s; }
.acc__head[aria-expanded="true"] .chev { transform: rotate(180deg); }

.acc__body { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s ease; }
.acc__body.is-open { grid-template-rows: 1fr; }
.acc__body > div { overflow: hidden; }

.acc__row {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 12px; border-bottom: 1px solid var(--line);
  font-size: 12px; text-align: left;
}
.acc__role { color: var(--ink-soft); width: 40px; flex-shrink: 0; }
.acc__num { color: var(--ink-mid); flex: 1; }
.acc__copy {
  background: none; border: 1px solid var(--line); border-radius: 3px;
  padding: 5px 9px; font-size: 11px; color: var(--ink-mid);
  font-family: inherit; cursor: pointer;
}

/* 방명록 */
.guest__lead { font-family: var(--serif); font-size: 14px; color: var(--ink-mid); margin-bottom: 20px; }
.guest__list { min-height: 60px; margin-bottom: 18px; }

/* 공유 */
.share {
  padding: 52px 30px 70px; text-align: center;
  border-top: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 9px;
}
.share__sign {
  margin-top: 24px;
  font-family: var(--serif); font-size: 13px; letter-spacing: .2em;
  color: var(--ink-soft);
}

/* 버튼 */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 18px;
  border: 1px solid var(--line); border-radius: 2px;
  background: none; color: var(--ink-mid);
  font-family: inherit; font-size: 13px; text-decoration: none;
  cursor: pointer;
}
.btn--primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--ghost { color: var(--ink-mid); }

/* 토스트 */
.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 12px);
  background: rgba(42,38,34,.92); color: #fff;
  padding: 10px 18px; border-radius: 999px; font-size: 12.5px;
  opacity: 0; pointer-events: none; transition: all .28s; z-index: 200;
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* 등장 애니메이션 */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s, transform .7s; }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { scroll-behavior: auto !important; }
}

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-h) + 10px); }