/* ============================================================
   wedding-chinese｜中式喜氣喜帖
   米宣紙底 × 絳紅 × 鎏金；囍字紋樣、金線框、厚重襯線
   色彩與間距 token 覆寫自 /shared/base.css
   ============================================================ */

:root {
  --paper:        #fdf8f0;              /* 米宣紙底 */
  --paper-raise:  #fffdf8;              /* 浮起表面 */
  --ink:          #432a24;              /* 深棕近黑（正文/標題） */
  --ink-soft:     #8a6f61;              /* 次要文字 */
  --accent:       #a8332e;              /* 絳紅（強調色/深色區底） */
  --accent-ink:   #f8ecd9;              /* 絳紅底上的米金文字 */
  --gold:         #b9974e;              /* 鎏金（裝飾線與點綴） */
  --hairline:     rgba(67, 42, 36, .16);
  --scrim:        linear-gradient(180deg, rgba(70, 16, 14, .08) 0%, rgba(70, 16, 14, .66) 100%);
  --ok:           #a8332e;

  --radius: .6rem;                      /* 收小圓角，端正的古典感 */
  --shadow-soft: 0 24px 60px -24px rgba(67, 42, 36, .24);
}

body {
  font-family: var(--font-serif-tc);
  font-size: var(--text-body);
  background: var(--paper);
  /* 宣紙細點紋：遠看是紙的肌理，近看不搶戲 */
  background-image: radial-gradient(rgba(185, 151, 78, .05) 1px, transparent 1.5px);
  background-size: 22px 22px;
  color: var(--ink);
}

/* ---------- 動態語彙：鎏金微光 ＋ 印章戳記 ---------- */
/* 進場改「墨暈開」：淡入時帶一點縮放，像落款慢慢定下來 */
.reveal { transform: translateY(22px) scale(.975); }

/* 鎏金掃光（囍字、footer 落款共用） */
@keyframes gold-sheen {
  from { background-position: 200% center; }
  to   { background-position: -200% center; }
}

/* ---------- 通用 ---------- */
.section-title {
  font-size: var(--text-h2);
  font-weight: 700;
  letter-spacing: .16em;
  text-align: center;
  margin-bottom: clamp(2rem, 6vw, 3.5rem);
}
/* 標題收筆：中央菱形、兩側漸隱金線（窗櫺語彙），進場時綻開 */
.section-title::after {
  content: "\25C6"; /* ◆ */
  display: block;
  width: 7rem;
  margin: .9rem auto 0;
  font-size: 8px;
  line-height: 1.6;
  color: var(--gold);
  text-align: center;
  background: linear-gradient(90deg, transparent, var(--gold) 32%, transparent 46%, transparent 54%, var(--gold) 68%, transparent) center / 100% 1px no-repeat;
  transform: scale(0);
  transition: transform .9s var(--ease-out) .3s;
}
.section-title.is-in::after { transform: scale(1); }
/* 小字中文標：直排（傳統請柬的題簽），字前一顆紅菱定位
   注意 vertical-rl 會翻轉邏輯軸：置中用「物理」margin，
   菱形走 inline 流（在直排裡 inline 軸＝由上往下）自然落在字上方 */
.label-cn {
  writing-mode: vertical-rl;
  margin: 0 auto 1.1rem;
  font-size: .95rem;
  letter-spacing: .42em;
  color: var(--gold);
  font-weight: 500;
}
.label-cn::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--accent);
  transform: rotate(45deg);
  margin-bottom: .8rem;
}
.dot-sep::before { content: "\00B7"; margin-inline: .6em; opacity: .6; }

/* ============ ① Hero：滿版照 ＋ 金框 ＋ 囍 ============ */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.hero-photo {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
.hero-scrim { position: absolute; inset: 0; background: var(--scrim); }
/* 內縮金線框：傳統喜帖的界格 */
.hero-frame {
  position: absolute;
  inset: clamp(.75rem, 2.5vw, 1.5rem);
  border: 1px solid rgba(214, 181, 111, .75);
  outline: 1px solid rgba(214, 181, 111, .3);
  outline-offset: 4px;
  pointer-events: none;
}
/* 界格對角的雙線角飾（左上／右下），像裱框的包角 */
.hero-frame::before,
.hero-frame::after {
  content: "";
  position: absolute;
  width: clamp(2rem, 6vw, 3rem);
  height: clamp(2rem, 6vw, 3rem);
  border: 2px solid rgba(214, 181, 111, .9);
}
.hero-frame::before { top: -2px; left: -2px; border-right: 0; border-bottom: 0; }
.hero-frame::after  { bottom: -2px; right: -2px; border-left: 0; border-top: 0; }
.hero-content {
  position: relative;
  width: 100%;
  max-width: var(--wide-max);
  margin-inline: auto;
  padding: 0 calc(var(--gutter) + clamp(.75rem, 2.5vw, 1.5rem)) clamp(3.5rem, 10vw, 6rem);
  color: #fbf3e4;
  text-align: center;
}
.hero-xi {
  width: clamp(3.2rem, 10vw, 4.2rem);
  height: clamp(3.2rem, 10vw, 4.2rem);
  margin: 0 auto 1.25rem;
  display: grid;
  place-items: center;
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 700;
  border: 1px solid rgba(214, 181, 111, .8);
  border-radius: 50%;
  /* 鎏金掃光：金箔在字面上緩慢流動 */
  background-image: linear-gradient(110deg, #b9974e 20%, #f3dfae 40%, #d6b56f 50%, #f3dfae 60%, #b9974e 80%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gold-sheen 6s linear infinite;
}
.hero-greeting {
  font-size: clamp(.95rem, 2.8vw, 1.1rem);
  letter-spacing: .22em;
  opacity: .94;
  margin-bottom: 1rem;
}
.hero-names {
  font-size: var(--text-hero);
  font-weight: 900;
  letter-spacing: .12em;
  line-height: 1.25;
  text-wrap: balance;
  text-shadow: 0 2px 24px rgba(70, 16, 14, .45);
}
.hero-names .amp {
  font-family: var(--font-serif-latin);
  font-style: italic;
  font-weight: 400;
  font-size: .58em;
  margin-inline: .2em;
  color: #d6b56f;
}
/* 名字後的「囍」印章：名字定格後，印章帶著轉勁蓋下來 */
.hero-names::after {
  content: "\56CD"; /* 囍 */
  display: inline-block;
  vertical-align: .35em;
  margin-left: .45em;
  font-size: .34em;
  font-weight: 700;
  line-height: 1;
  padding: .32em .3em .28em;
  color: #fbf3e4;
  background: var(--accent);
  border: 1px solid rgba(214, 181, 111, .85);
  border-radius: .18em;
  box-shadow: 0 2px 10px rgba(70, 16, 14, .35);
  opacity: 0;
}
.hero-names.is-in::after { animation: seal-stamp .55s var(--ease-out) 1.05s both; }
@keyframes seal-stamp {
  0%   { opacity: 0; transform: scale(2.1) rotate(14deg); }
  70%  { opacity: 1; transform: scale(.94) rotate(5deg); }
  100% { opacity: 1; transform: scale(1) rotate(6deg); }
}
.hero-names-en {
  font-family: var(--font-serif-latin);
  font-size: clamp(1rem, 3vw, 1.3rem);
  letter-spacing: .34em;
  text-transform: uppercase;
  color: #d6b56f;
  margin-top: .6rem;
}
.hero-names-en:empty { display: none; }
.hero-date {
  margin-top: 1.25rem;
  font-size: clamp(1rem, 3vw, 1.2rem);
  letter-spacing: .18em;
}

/* 倒數：金髮絲線分隔 */
.countdown {
  display: inline-flex;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}
.cd-cell {
  display: grid;
  gap: .1rem;
  padding-inline: clamp(.9rem, 4vw, 1.6rem);
  text-align: center;
}
.cd-cell + .cd-cell { border-left: 1px solid rgba(214, 181, 111, .45); }
.cd-cell strong {
  font-family: var(--font-serif-latin);
  font-weight: 500;
  font-size: clamp(1.6rem, 6vw, 2.4rem);
  line-height: 1.1;
  color: #d6b56f;
  font-variant-numeric: tabular-nums;
}
.cd-cell span { font-size: var(--text-tiny); letter-spacing: .3em; opacity: .88; }
.countdown.is-past .cd-cell span { opacity: .5; }

/* ============ ② Our Story：紅線金點時間軸 ============ */
.timeline {
  position: relative;
  display: grid;
  gap: clamp(2.5rem, 7vw, 3.5rem);
  padding-left: 1.9rem;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0; top: .5rem; bottom: .5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(185, 151, 78, .25));
}
/* 金線隨進場往下抽拉（不支援 :has 的瀏覽器維持常駐） */
@supports selector(:has(*)) {
  .timeline::before {
    transform: scaleY(0);
    transform-origin: top center;
    transition: transform 1.6s var(--ease-out);
  }
  .timeline:has(.is-in)::before { transform: scaleY(1); }
}
.timeline-item { position: relative; }
/* 節點：旋轉 45 度的紅色小方（中式窗櫺的菱形），進場時綻開 */
.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1.9rem - 3.5px); top: .62em;
  width: 8px; height: 8px;
  background: var(--accent);
  transform: rotate(45deg) scale(0);
  transition: transform .6s var(--ease-out) .25s;
}
.timeline-item.is-in::before { transform: rotate(45deg) scale(1); }
.tl-date {
  font-family: var(--font-serif-latin);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--gold);
}
.tl-title {
  font-size: var(--text-h3);
  font-weight: 700;
  letter-spacing: .1em;
  margin: .3rem 0 .4rem;
}
.tl-text { color: var(--ink-soft); max-width: 34em; }

/* ============ ③ Gallery：細金邊照片 ============ */
.photo-grid {
  columns: 2;
  column-gap: clamp(.75rem, 2.5vw, 1.5rem);
}
.photo-item {
  break-inside: avoid;
  margin-bottom: clamp(.75rem, 2.5vw, 1.5rem);
  padding: 5px;
  background: var(--paper-raise);
  border: 1px solid rgba(185, 151, 78, .45);
  border-radius: var(--radius);
  transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out), border-color .5s var(--ease-out);
}
.photo-item img {
  width: 100%;
  border-radius: calc(var(--radius) * .6);
}
@media (hover: hover) {
  /* 裱框畫作的懸浮感：整框微升、金邊變實 */
  .photo-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px -18px rgba(67, 42, 36, .35);
    border-color: rgba(185, 151, 78, .9);
  }
}
@media (min-width: 900px) {
  .photo-grid { columns: 3; }
}

/* Lightbox */
.wk-lightbox {
  position: fixed; inset: 0; z-index: 100;
  display: none;
  align-items: center; justify-content: center;
  background: rgba(46, 14, 12, .93);
  padding: 4vh 4vw;
}
.wk-lightbox.is-open { display: flex; }
.wk-lightbox img {
  max-width: 100%; max-height: 88dvh;
  border-radius: .5rem;
  margin-inline: auto;
}
.wk-lightbox button {
  position: absolute;
  color: #f8ecd9;
  font-size: 2rem;
  line-height: 1;
  padding: .75rem 1rem;
  opacity: .8;
  transition: opacity .3s var(--ease-out);
}
.wk-lightbox button:hover { opacity: 1; }
.wk-lb-close { top: .5rem; right: .75rem; font-size: 2.4rem; }
.wk-lb-prev { left: .25rem; top: 50%; transform: translateY(-50%); }
.wk-lb-next { right: .25rem; top: 50%; transform: translateY(-50%); }

/* ============ ④ Event Details ============ */
.details { text-align: center; background: var(--paper-raise); }
/* 婚期做成「界格題字」：上下金線、絳紅字 */
.details-date {
  display: inline-block;
  font-size: var(--text-h3);
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--accent);
  padding: .55rem 1.6rem;
  border-block: 1px solid rgba(185, 151, 78, .6);
}
.details-note { color: var(--ink-soft); font-size: var(--text-small); letter-spacing: .14em; margin-top: .25rem; }
.details-note:empty { display: none; }

.event-list {
  margin: clamp(2rem, 6vw, 3rem) auto 0;
  max-width: 26rem;
  display: grid;
  gap: 1.5rem;
}
.event-row {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  align-items: baseline;
  gap: 1.25rem;
  text-align: left;
}
.event-row dt {
  font-family: var(--font-serif-latin);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.event-row dd strong { font-size: var(--text-h3); font-weight: 700; letter-spacing: .1em; display: block; }
.event-row dd span { color: var(--ink-soft); font-size: var(--text-small); }

.calendar-actions {
  display: flex; flex-wrap: wrap; gap: .75rem; justify-content: center;
  margin-top: clamp(2rem, 6vw, 2.75rem);
}
.parents {
  margin-top: clamp(2.5rem, 7vw, 3.5rem);
  color: var(--ink-soft);
  font-size: var(--text-small);
  letter-spacing: .18em;
}

/* ============ ⑤ Venue ============ */
.venue .section-title { margin-bottom: .5rem; }
.venue { text-align: center; }
.venue-hall { color: var(--gold); letter-spacing: .18em; font-weight: 500; }
.venue-hall:empty { display: none; }
.venue-address { color: var(--ink-soft); margin-top: .25rem; }
.map-frame {
  margin-top: clamp(1.5rem, 5vw, 2.5rem);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(185, 151, 78, .5);
  box-shadow: var(--shadow-soft);
  aspect-ratio: 4 / 3;
}
@media (min-width: 700px) { .map-frame { aspect-ratio: 16 / 8; } }
.map-frame iframe { width: 100%; height: 100%; border: 0; display: block; }

.venue-bottom {
  margin-top: clamp(1.75rem, 5vw, 2.5rem);
  display: grid;
  gap: 1.5rem;
  text-align: left;
}
.transport { display: grid; gap: .9rem; }
.transport li { display: grid; grid-template-columns: 3.5rem 1fr; gap: 1rem; align-items: baseline; }
.transport strong { font-weight: 700; letter-spacing: .2em; color: var(--accent); }
.transport span { color: var(--ink-soft); }
@media (min-width: 700px) {
  .venue-bottom { grid-template-columns: 1fr auto; align-items: start; }
}

/* ============ ⑥ RSVP（絳紅收尾）============ */
.rsvp {
  background: var(--accent);
  /* 紅底上的細緻織紋（斜向髮絲線，遠看是質感、近看不搶戲） */
  background-image: repeating-linear-gradient(
    135deg,
    rgba(214, 181, 111, .05) 0px,
    rgba(214, 181, 111, .05) 1px,
    transparent 1px,
    transparent 12px
  );
  color: var(--accent-ink);
}
.on-dark-label { color: #d6b56f; }
.on-dark-label::before { background: #d6b56f; } /* 紅底上菱形改金，才看得見 */
.rsvp .section-title::after {
  color: #d6b56f;
  background: linear-gradient(90deg, transparent, rgba(214, 181, 111, .85) 32%, transparent 46%, transparent 54%, rgba(214, 181, 111, .85) 68%, transparent) center / 100% 1px no-repeat;
}
.rsvp-intro { max-width: 30em; margin-inline: auto; text-align: center; }
.rsvp-deadline {
  font-size: var(--text-small);
  letter-spacing: .12em;
  opacity: .85;
  margin-top: .5rem;
  text-align: center;
}

.rsvp-form {
  margin-top: clamp(2rem, 6vw, 3rem);
  display: grid;
  gap: 1.5rem;
}
.rsvp .field label, .rsvp .field legend {
  color: var(--accent-ink);
  font-size: var(--text-small);
  letter-spacing: .12em;
}
.rsvp .field input, .rsvp .field textarea, .rsvp .field select {
  background: #fbf3e4;
  border-color: transparent;
  color: var(--ink);
}
.rsvp .field input:focus-visible, .rsvp .field textarea:focus-visible, .rsvp .field select:focus-visible {
  border-color: transparent;
  box-shadow: 0 0 0 3px rgba(214, 181, 111, .55);
}
.rsvp .field .error-text { color: #f2cf9d; }
.rsvp .field.has-error input { border-color: #f2cf9d; }

.attend-field { border: 0; }
.attend-options { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; margin-top: .5rem; }
.attend-pill input { position: absolute; opacity: 0; pointer-events: none; }
.attend-pill span {
  display: flex; align-items: center; justify-content: center;
  padding: .8rem 1rem;
  border-radius: var(--radius-pill);
  box-shadow: inset 0 0 0 1px rgba(214, 181, 111, .55);
  letter-spacing: .1em;
  transition: background .35s var(--ease-out), color .35s var(--ease-out), box-shadow .35s var(--ease-out);
  user-select: none;
}
.attend-pill input:checked + span {
  background: #d6b56f;
  color: #5c1310;
  box-shadow: none;
  font-weight: 700;
}
.attend-pill input:focus-visible + span { box-shadow: 0 0 0 3px rgba(214, 181, 111, .55); }

.rsvp-details { display: grid; gap: 1.5rem; }
.field-row { display: grid; gap: 1.5rem; }
@media (min-width: 520px) { .field-row { grid-template-columns: repeat(3, 1fr); } }

.rsvp-error { color: #f2cf9d; font-size: var(--text-small); }
.rsvp-submit { width: 100%; padding-block: 1.05rem; letter-spacing: .3em; }
@media (min-width: 700px) { .rsvp-submit { width: auto; justify-self: center; padding-inline: 3.5rem; } }
/* 紅底上的按鈕：金底紅字（蓋掉 base.css 的 on-dark 反轉） */
.on-dark .btn, .rsvp .rsvp-submit { background: #d6b56f; color: #5c1310; }
.on-dark .btn-ghost {
  background: transparent; color: var(--accent-ink);
  box-shadow: inset 0 0 0 1px rgba(214, 181, 111, .5);
}
.on-dark .btn-ghost:hover { box-shadow: inset 0 0 0 1px #d6b56f; }

.rsvp-success, .rsvp-closed {
  margin-top: clamp(2rem, 6vw, 3rem);
  text-align: center;
  display: grid;
  gap: .75rem;
  justify-items: center;
  padding: clamp(2rem, 6vw, 3rem) var(--gutter);
  border-radius: var(--radius);
  box-shadow: inset 0 0 0 1px rgba(214, 181, 111, .45);
}
.success-mark {
  width: 3rem; height: 3rem;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #d6b56f;
  color: #5c1310;
  font-size: 1.4rem;
}
.rsvp-success h3, .rsvp-closed h3 { font-size: var(--text-h3); font-weight: 700; letter-spacing: .14em; }
.success-note { font-size: var(--text-small); opacity: .85; }

/* ============ ⑦ Footer ============ */
.footer {
  text-align: center;
  padding: clamp(3.5rem, 10vw, 5.5rem) 0;
}
.footer-xi {
  width: 2.9rem; height: 2.9rem;
  margin: 0 auto 1.5rem;
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  font-weight: 700;
  border: 1px solid rgba(185, 151, 78, .6);
  border-radius: 50%;
  background-image: linear-gradient(110deg, #b9974e 20%, #e8d09a 40%, #b9974e 50%, #e8d09a 60%, #b9974e 80%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gold-sheen 6s linear infinite;
}
.footer-message { color: var(--ink-soft); max-width: 28em; margin-inline: auto; }
.footer-names {
  margin-top: 1rem;
  font-size: var(--text-h3);
  font-weight: 700;
  letter-spacing: .2em;
}
.footer-brand {
  display: inline-block;
  margin-top: 2.5rem;
  font-size: var(--text-tiny);
  letter-spacing: .12em;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: .15rem;
  transition: color .3s var(--ease-out), border-color .3s var(--ease-out);
}
.footer-brand:hover { color: var(--accent); border-color: var(--accent); }