/* ============================================================
   Wedding Blessing Wall — Light / IG-Style Theme
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --gold-deep:    #A07830;
  --gold-main:    #C9A84C;
  --gold-light:   #DDB96A;
  --gold-pale:    #EDD9A3;
  --bg-page:      #F7F2EA;
  --bg-card:      #FFFFFF;
  --bg-header:    rgba(253, 250, 245, 0.96);
  --text-dark:    #2C1F0E;
  --text-mid:     #5C4A2A;
  --text-muted:   #9C8060;
  --border-card:  rgba(201, 168, 76, 0.18);
  --shadow-card:  0 4px 32px rgba(160, 120, 48, 0.12), 0 1px 4px rgba(160,120,48,0.08);
  --shadow-hover: 0 12px 48px rgba(160, 120, 48, 0.18);
  --radius-card:  18px;
  --font-serif:   'Cormorant Garamond', 'Noto Serif TC', serif;
  --font-zh:      'Noto Serif TC', serif;
  --transition:   0.75s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg-page);
  color: var(--text-dark);
  font-family: var(--font-zh);
  -webkit-font-smoothing: antialiased;
}

/* ---------- Subtle page texture ---------- */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 15% 90%, rgba(201,168,76,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 70% at 85% 10%, rgba(201,168,76,0.05) 0%, transparent 60%);
}



/* ---------- Main slideshow ---------- */
.slideshow-container {
  position: fixed; inset: 0; z-index: 10;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}

/* ---------- Coverflow wrapper ---------- */
#coverflow {
  position: relative;
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- CF Card ---------- */
.cf-card {
  position: absolute;
  transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1),
              opacity   0.65s ease,
              filter    0.65s ease;
  will-change: transform, opacity;
  cursor: default;
}

/* pos -3 / 3 : 完全隱藏，進出過渡用 */
.cf-card[data-pos="-3"] {
  transform: translateX(-210%) scale(0.55);
  opacity: 0; z-index: 0; pointer-events: none;
}
.cf-card[data-pos="3"] {
  transform: translateX(210%) scale(0.55);
  opacity: 0; z-index: 0; pointer-events: none;
}
/* pos -2 / 2 : 最外側，縮小並大幅壓暗，視覺退到遠處 */
.cf-card[data-pos="-2"] {
  transform: translateX(-118%) scale(0.7);
  opacity: 0.55; z-index: 3; pointer-events: none;
  filter: brightness(0.55) saturate(0.4) blur(1.5px);
}
.cf-card[data-pos="2"] {
  transform: translateX(118%) scale(0.7);
  opacity: 0.55; z-index: 3; pointer-events: none;
  filter: brightness(0.55) saturate(0.4) blur(1.5px);
}
/* pos -1 / 1 : 內側，明顯壓暗、輕微模糊，讓中央清楚突出 */
.cf-card[data-pos="-1"] {
  transform: translateX(-63%) scale(0.84);
  opacity: 0.7; z-index: 5; pointer-events: none;
  filter: brightness(0.65) saturate(0.5) blur(0.8px);
}
.cf-card[data-pos="1"] {
  transform: translateX(63%) scale(0.84);
  opacity: 0.7; z-index: 5; pointer-events: none;
  filter: brightness(0.65) saturate(0.5) blur(0.8px);
}
/* pos 0 : 主卡片（完全清晰，蓋在所有側邊卡片上） */
.cf-card[data-pos="0"] {
  transform: translateX(0) scale(1);
  opacity: 1; z-index: 10; pointer-events: auto; filter: none;
}

/* ---------- Intro slide ---------- */
.slide--intro {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  opacity: 1; z-index: 20;
  background: var(--bg-page);
  transition: opacity 0.8s ease;
}
.slide--intro.exit { opacity: 0; pointer-events: none; }

/* ---------- Intro slide ---------- */
.slide--intro { background: var(--bg-page); }
.intro-content {
  text-align: center; padding: 40px;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.floral-top { color: var(--gold-main); width: min(280px, 65vw); opacity: 0.65; }
.intro-label {
  font-family: var(--font-serif); font-style: italic;
  font-size: clamp(0.78rem, 1.3vw, 0.98rem);
  letter-spacing: 0.35em; color: var(--gold-main); text-transform: uppercase;
}
.intro-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5.5vw, 3.8rem);
  font-weight: 300; color: var(--text-dark); letter-spacing: 0.08em; line-height: 1.2;
}
.intro-date {
  font-size: clamp(0.72rem, 1.2vw, 0.9rem); font-weight: 300;
  color: var(--text-muted); letter-spacing: 0.28em;
}
.intro-divider {
  display: flex; align-items: center; gap: 12px;
  color: var(--gold-main); font-size: 0.82rem; letter-spacing: 0.18em; opacity: 0.75;
}
.intro-loading { font-size: 0.82rem; color: var(--text-muted); letter-spacing: 0.12em; }
.loader-ring {
  width: 32px; height: 32px; margin-top: 6px;
  border: 1.5px solid rgba(201,168,76,0.25);
  border-top-color: var(--gold-main); border-radius: 50%;
  animation: spin 1.2s linear infinite;
}

/* ============================================================
   IG-Style Card Base — 所有卡片統一尺寸
   ============================================================ */
.ig-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  position: relative;
  /* 所有卡片固定寬高 */
  width: min(520px, 86vw);
  height: min(68vh, 640px);
  display: flex;
  flex-direction: column;
}

/* ---------- Card top bar (IG header) ---------- */
.ig-card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px;
  height: 58px;
  flex-shrink: 0;
}
.ig-name {
  font-family: var(--font-zh); font-size: 1.1rem; font-weight: 500;
  color: var(--text-dark); letter-spacing: 0.06em; line-height: 1;
}
.ig-heart {
  color: var(--gold-main); font-size: 1.1rem; line-height: 1;
  animation: heartbeat 3s ease-in-out infinite;
}

/* ---------- Card photo：佔滿剩餘空間 ---------- */
.ig-photo-wrap {
  position: relative; overflow: hidden;
  width: 100%;
  flex: 1;          /* 撐滿剩餘高度 */
  min-height: 0;    /* flex 必要設定 */
  background: var(--bg-page);
}
.ig-photo-wrap img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 8s ease;
}
.cf-card[data-pos="0"] .ig-photo-wrap img { transform: scale(1.04); }

/* ---------- 有照片時的文字區（固定在底部）---------- */
.ig-card-body {
  padding: 14px 20px 18px;
  flex-shrink: 0;
}
.ig-divider {
  width: 28px; height: 1px; margin-bottom: 10px;
  background: linear-gradient(to right, var(--gold-main), var(--gold-pale));
}
.ig-message {
  font-family: var(--font-zh);
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  font-weight: 300; line-height: 1.85;
  color: var(--text-dark); letter-spacing: 0.05em;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 純文字卡片：文字垂直置中 ---------- */
.ig-card-body--text-only {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px 36px 40px;
}
.text-quote-mark {
  font-family: var(--font-serif); font-style: italic;
  font-size: 4.5rem; line-height: 0.75; color: var(--gold-pale);
  display: block; margin-bottom: 8px;
}
.ig-message-large {
  font-family: var(--font-zh);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-weight: 300; line-height: 1.9;
  color: var(--text-dark); letter-spacing: 0.06em;
}

/* ---------- Gold corner ornaments ---------- */
.corner-ornament {
  position: absolute; pointer-events: none;
  color: var(--gold-main); opacity: 0; transition: opacity 0.8s ease 0.4s;
}
.slide.active .corner-ornament { opacity: 0.25; }
.corner-ornament svg { width: 44px; height: 44px; }
.corner-ornament.tl { top: 0; left: 0; }
.corner-ornament.tr { top: 0; right: 0; transform: scaleX(-1); }
.corner-ornament.bl { bottom: 0; left: 0; transform: scaleY(-1); }
.corner-ornament.br { bottom: 0; right: 0; transform: scale(-1,-1); }

/* ---------- Progress bar ---------- */
.progress-bar-wrap {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 300;
  height: 3px; background: rgba(201,168,76,0.12);
}
.progress-bar {
  height: 100%;
  background: linear-gradient(to right, var(--gold-deep), var(--gold-main), var(--gold-light));
  width: 0%;
  box-shadow: 0 0 6px rgba(201,168,76,0.4);
}

/* ---------- Wedding Photo Slide ---------- */
.slide--wedding-photo { padding: 0; }

.wedding-photo-card {
  position: relative;
  width: min(580px, 88vw);
  height: min(75vh, 700px);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
}
.wedding-photo-card img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  transition: transform 10s ease;
}
.slide.active .wedding-photo-card img { transform: scale(1.05); }

.wedding-photo-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(20,14,6,0.7) 0%, transparent 50%);
  display: flex; align-items: flex-end; justify-content: center;
  padding-bottom: 36px;
}
.wedding-photo-caption {
  text-align: center; display: flex; flex-direction: column; gap: 6px;
}
.wpc-en {
  font-family: var(--font-serif); font-style: italic;
  font-size: clamp(0.85rem, 1.5vw, 1.1rem);
  color: rgba(240,228,192,0.75); letter-spacing: 0.35em;
}
.wpc-names {
  font-family: var(--font-zh);
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  color: var(--gold-pale); letter-spacing: 0.18em; font-weight: 300;
}

/* ---------- Animations ---------- */
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  14%  { transform: scale(1.25); }
  28%  { transform: scale(1); }
  42%  { transform: scale(1.18); }
  56%  { transform: scale(1); }
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- QR Code Widget ---------- */
#qrcode-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: rgba(253, 250, 245, 0.92);
  border: 1px solid var(--border-card);
  border-radius: 14px;
  padding: 12px 12px 10px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
}
#qrcode-box canvas,
#qrcode-box img {
  display: block;
  width: 96px !important;
  height: 96px !important;
  border-radius: 6px;
}
#qrcode-label {
  font-family: var(--font-zh);
  font-size: 0.68rem;
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  white-space: nowrap;
}

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  .site-header { padding: 10px 16px; gap: 10px; }
  .header-ornament { display: none; }
  .controls { padding: 0 14px; bottom: 14px; }
  .ig-card { width: 92vw; }
}