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

html {
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: #EAE0D7;
  color: #2B181A;
  font-family: "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Animations */
@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.animate-spin-slow {
  animation: spinSlow 6s linear infinite;
}

@keyframes heartBeat {
  0%, 100% { transform: scale(1); }
  30% { transform: scale(1.22); }
  60% { transform: scale(1.08); }
}
.animate-heartbeat {
  animation: heartBeat 1.5s ease-in-out infinite;
}

@keyframes giftBounce {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-5px) rotate(-3deg); }
  75% { transform: translateY(-3px) rotate(3deg); }
}
.animate-gift-bounce {
  animation: giftBounce 2.2s ease-in-out infinite;
}

@keyframes carDrive {
  0%, 100% { transform: translate(0, 0) rotate(-6deg); }
  50% { transform: translate(-6px, 4px) rotate(-2deg); }
}
.animate-car {
  animation: carDrive 3s ease-in-out infinite;
}

@keyframes kenBurns {
  0% { transform: scale(1); }
  50% { transform: scale(1.045); }
  100% { transform: scale(1); }
}
.animate-ken-burns {
  animation: kenBurns 18s ease-in-out infinite;
}

@keyframes petalFloat {
  0% {
    transform: translate3d(0, -8vh, 0) rotate(0deg) scale(0.85);
    opacity: 0;
  }
  12% { opacity: 0.92; }
  88% { opacity: 0.92; }
  100% {
    transform: translate3d(var(--sway, 34px), 105vh, 0) rotate(28deg) scale(1.05);
    opacity: 0;
  }
}
.petal-particle {
  position: fixed;
  top: -6vh;
  pointer-events: none;
  z-index: 45;
  animation: petalFloat var(--duration, 11s) linear infinite;
  animation-delay: var(--delay, 0s);
}

@keyframes floatUpHeart {
  0% {
    transform: translate3d(0, 0, 0) scale(0.6);
    opacity: 1;
  }
  100% {
    transform: translate3d(var(--tx, -20px), -230px, 0) scale(1.35);
    opacity: 0;
  }
}
.floating-heart-burst {
  position: absolute;
  bottom: 26px;
  right: 12px;
  pointer-events: none;
  animation: floatUpHeart 2.1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.reveal-section {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Mobile 9:16 Wedding Card Shell */
.wedding-viewport {
  min-height: 100vh;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  display: flex;
  justify-content: center;
  background: radial-gradient(circle at top, #F4ECE4, #E2D4C8);
}

.wedding-mobile-frame {
  width: 100%;
  max-width: 440px;
  min-width: 0;
  min-height: 100vh;
  background-color: var(--secondary-color, #FBF9F6);
  box-shadow: 0 20px 60px rgba(60, 16, 22, 0.22);
  position: relative;
  overflow: hidden;
  padding-bottom: 84px;
  transition: background-color 0.4s ease;
}

/* Top Floating Buttons (Auto-scroll Left & Music Vinyl Right) */
.autoscroll-btn {
  position: fixed;
  top: 16px;
  left: max(14px, calc(50% - 204px));
  z-index: 60;
  width: 38px;
  height: 38px;
  border-radius: 9999px;
  border: 2px solid rgba(255, 255, 255, 0.85);
  background: #E04F62;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(224, 79, 98, 0.38);
  transition: transform 0.2s, background-color 0.2s;
}
.autoscroll-btn:active {
  transform: scale(0.9);
}

.lang-switch-btn {
  position: fixed;
  top: 16px;
  left: max(14px, calc(50% - 204px));
  z-index: 60;
  height: 38px;
  padding: 0 12px;
  border-radius: 9999px;
  border: 1.5px solid rgba(110, 17, 27, 0.25);
  background: rgba(255, 255, 255, 0.92);
  color: var(--primary-color, #6E111B);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(110, 17, 27, 0.16);
  backdrop-filter: blur(8px);
  transition: transform 0.2s, left 0.25s ease;
}
.lang-switch-btn.opened {
  left: max(60px, calc(50% - 158px));
}
.lang-switch-btn:active {
  transform: scale(0.93);
}

.music-disc-btn {
  position: fixed;
  top: 16px;
  right: max(14px, calc(50% - 204px));
  z-index: 60;
  width: 40px;
  height: 40px;
  border-radius: 9999px;
  border: 2px solid rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(110, 17, 27, 0.3);
  backdrop-filter: blur(8px);
  transition: transform 0.2s;
}
.music-disc-btn:active {
  transform: scale(0.9);
}

/* 3D Envelope Cover */
.envelope-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 48px 24px 36px;
  text-align: center;
  user-select: none;
  background: radial-gradient(circle at center, #FFFDFB 0%, #F7EFEA 100%);
}

.envelope-wrapper {
  position: relative;
  width: 100%;
  max-width: 332px;
  margin: 30px auto 18px;
  cursor: pointer;
  perspective: 1000px;
}

.envelope-back {
  width: 100%;
  height: 180px;
  border-radius: 12px 12px 0 0;
  background-color: var(--primary-color, #6E111B);
  position: relative;
  box-shadow: 0 12px 30px rgba(105, 20, 31, 0.28);
}

.envelope-flap {
  position: absolute;
  top: -92px;
  left: 0;
  right: 0;
  height: 93px;
  clip-path: polygon(0 100%, 50% 0, 100% 100%);
  background-color: var(--primary-color, #6E111B);
  filter: brightness(0.86);
  transform-origin: bottom center;
  transition: transform 1.05s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 10;
}

.envelope-photo-card {
  position: absolute;
  top: -54px;
  left: 20px;
  right: 20px;
  height: 235px;
  background: #FFFFFF;
  padding: 6px;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  z-index: 20;
  overflow: hidden;
  transition: transform 1.15s cubic-bezier(0.22, 1, 0.36, 1) 0.15s;
}

.envelope-photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 6px;
}

.envelope-wrapper.opening .envelope-photo-card {
  transform: translateY(-62px) scale(1.05);
}

.envelope-front {
  position: relative;
  width: 100%;
  height: 175px;
  border-radius: 0 0 14px 14px;
  background-color: var(--primary-color, #6E111B);
  z-index: 30;
  box-shadow: 0 18px 38px rgba(80, 12, 22, 0.35);
  overflow: hidden;
}

.envelope-fold-left {
  position: absolute;
  inset: 0;
  clip-path: polygon(0 0, 50% 54%, 0 100%);
  background: rgba(255, 255, 255, 0.07);
}
.envelope-fold-right {
  position: absolute;
  inset: 0;
  clip-path: polygon(100% 0, 50% 54%, 100% 100%);
  background: rgba(0, 0, 0, 0.09);
}
.envelope-fold-bottom {
  position: absolute;
  inset: 0;
  clip-path: polygon(0 100%, 50% 46%, 100% 100%);
  background: rgba(0, 0, 0, 0.17);
}

.wax-seal {
  position: absolute;
  top: 46%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  border-radius: 9999px;
  background: radial-gradient(circle at 30% 30%, #F5DF98, #C59B27 55%, #7D5810);
  border: 2px solid rgba(255, 238, 180, 0.8);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF8DC;
  font-family: Georgia, serif;
  font-size: 18px;
  transition: transform 0.3s ease;
}

/* MẪU 2: Envelope Opening Animation */
.mau2-envelope-flap {
  transform-origin: top center;
  transition: transform 0.85s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.6s ease;
}
.mau2-envelope-letter {
  transition: transform 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.08s;
}
.mau2-wax-seal {
  transition: transform 0.5s ease, opacity 0.45s ease;
}
#envelope-interactive.opening .mau2-envelope-flap {
  transform: rotateX(180deg);
  opacity: 0.35;
}
#envelope-interactive.opening .mau2-envelope-letter {
  transform: translateY(-22px) scale(1.02);
}
#envelope-interactive.opening .mau2-wax-seal {
  transform: translate(-50%, -50%) scale(1.22);
  opacity: 0;
}
@media (prefers-reduced-motion: reduce) {
  .mau2-envelope-flap,
  .mau2-envelope-letter,
  .mau2-wax-seal {
    transition: none !important;
  }
}

/* MẪU 2: Deep Burgundy Party Cards */
.mau2-party-card {
  background: linear-gradient(180deg, #74121D 0%, #5B0C15 100%);
  color: #FFFFFF;
  border-radius: 22px;
  padding: 24px 18px;
  text-align: center;
  box-shadow: 0 12px 28px rgba(91, 12, 21, 0.26);
  border: 1px solid rgba(232, 184, 91, 0.28);
  margin-bottom: 18px;
}

.mau2-gold-date {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #EBB963;
  margin: 6px 0 4px;
  line-height: 1.15;
}

.mau2-direction-btn {
  display: inline-block;
  margin-top: 14px;
  background: #FFFFFF;
  color: #5B0C15;
  font-size: 12.5px;
  font-weight: 600;
  padding: 8px 24px;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.16);
  transition: transform 0.15s ease;
}
.mau2-direction-btn:active {
  transform: scale(0.95);
}

/* MẪU 2: 4 Burgundy Countdown Boxes */
.mau2-countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 0 18px;
  margin-top: 18px;
}
.mau2-countdown-box {
  background: linear-gradient(180deg, #78131E 0%, #5E0D16 100%);
  color: #FFFFFF;
  border-radius: 12px;
  padding: 12px 4px;
  text-align: center;
  box-shadow: 0 8px 18px rgba(110, 17, 27, 0.24);
}

/* Gallery Swipe */
.gallery-carousel {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.gallery-carousel::-webkit-scrollbar {
  display: none;
}
.gallery-slide {
  flex: 0 0 100%;
  scroll-snap-align: center;
  aspect-ratio: 4 / 3;
  position: relative;
  cursor: pointer;
}
.gallery-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 12px;
}

/* Floating Wishes Barrage & Bottom Bar (MẪU 2) */
.floating-wishes-container {
  position: fixed;
  bottom: 62px;
  left: max(12px, calc(50% - 208px));
  z-index: 48;
  max-width: 286px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  pointer-events: none;
}
.wish-pill {
  background: rgba(214, 96, 112, 0.88);
  backdrop-filter: blur(6px);
  color: #FFFFFF;
  font-size: 11.5px;
  padding: 8px 13px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(110, 17, 27, 0.2);
  line-height: 1.4;
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.wish-pill-rotator {
  pointer-events: none;
  transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}
.wish-pill-rotator.is-entering {
  opacity: 0;
  transform: translate3d(0, 14px, 0) scale(0.98);
}
.wish-pill-rotator.is-fading-in {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}
.wish-pill-rotator.is-fading-out {
  opacity: 0;
  transform: translate3d(0, -18px, 0) scale(0.985);
}
.wish-pill-rotator.is-shifting-up {
  opacity: 1;
  transform: translate3d(0, -8px, 0);
}

@media (prefers-reduced-motion: reduce) {
  .wish-pill-rotator,
  .wish-pill-rotator.is-entering,
  .wish-pill-rotator.is-fading-in,
  .wish-pill-rotator.is-fading-out,
  .wish-pill-rotator.is-shifting-up {
    transition: opacity 0.2s linear !important;
    transform: none !important;
  }
}

.floating-right-dock {
  position: fixed;
  bottom: 66px;
  right: max(12px, calc(50% - 208px));
  z-index: 49;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

#btn-burst-heart,
#btn-toggle-music,
#btn-toggle-autoscroll,
#btn-enable-music-prompt {
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.bottom-action-bar {
  position: fixed;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 24px);
  max-width: 416px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

/* Admin Panel Layout */
.admin-shell {
  min-height: 100vh;
  background-color: #F7F3F0;
  color: #1F2937;
  padding-bottom: 80px;
}
.admin-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #E5E7EB;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}
.admin-container {
  max-width: 1024px;
  margin: 0 auto;
  padding: 0 16px;
}
.admin-card {
  background: #FFFFFF;
  border-radius: 16px;
  padding: 22px;
  border: 1px solid #E5E7EB;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  margin-bottom: 20px;
}
.admin-input, .admin-textarea, .admin-select {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid #D1D5DB;
  font-size: 14px;
  font-family: inherit;
  background: #FFFFFF;
  color: #111827;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.admin-input:focus, .admin-textarea:focus, .admin-select:focus {
  outline: none;
  border-color: #6E111B;
  box-shadow: 0 0 0 3px rgba(110, 17, 27, 0.15);
}
.admin-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: #374151;
  margin-bottom: 6px;
}
.admin-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  background-color: #6E111B;
  color: #FFFFFF;
  font-size: 13.5px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  text-decoration: none;
}
.admin-btn-primary:hover {
  background-color: #550C14;
}
.admin-btn-primary:active {
  transform: scale(0.98);
}
.admin-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  background-color: #FFFFFF;
  color: #374151;
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid #D1D5DB;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s;
}
.admin-btn-secondary:hover {
  background-color: #F9FAFB;
}
.admin-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.admin-grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.admin-gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
@media (min-width: 640px) {
  .admin-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .admin-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .admin-gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Smooth Scroll Offsets & Mobile/Desktop Responsiveness */
#rsvp-section,
#gift-box-section {
  scroll-margin-top: 24px;
}

@supports (min-height: 100dvh) {
  .wedding-viewport,
  .wedding-mobile-frame,
  .envelope-screen {
    min-height: 100dvh;
  }
}

.bottom-action-bar {
  padding-bottom: calc(6px + env(safe-area-inset-bottom, 0px));
}

@media (max-width: 640px) {
  .admin-input,
  .admin-textarea,
  .admin-select,
  #form-rsvp input[type="text"],
  #form-rsvp input[type="tel"],
  #form-rsvp select,
  #form-rsvp textarea {
    font-size: 16px !important;
  }

  .autoscroll-btn,
  .music-disc-btn {
    width: 44px;
    height: 44px;
  }
}

/* ============================================================================
   MẪU 3: DAMCUOI (PHONG BÌ MỞ ẢNH, HOA LÁ MÀU NƯỚC & THƯỚC PHIM KODAK)
   ============================================================================ */
.tpl-damcuoi {
  --damcuoi-bg: var(--secondary-color, #F7F3EE);
  --damcuoi-primary: var(--primary-color, #5A4A42);
  --damcuoi-accent-red: #B5465A;
  --damcuoi-dark: #2C2520;
  --damcuoi-muted: #6E5A4F;
  --damcuoi-border: #DFD5C8;
  --damcuoi-title-font: var(--title-font, 'Great Vibes'), cursive;
  --damcuoi-body-font: var(--body-font, 'Be Vietnam Pro'), sans-serif;
  --damcuoi-default-font: var(--default-text-font, 'Be Vietnam Pro'), sans-serif;
  background-color: var(--damcuoi-bg);
  color: var(--damcuoi-dark);
  font-family: var(--damcuoi-default-font);
  position: relative;
  overflow-x: hidden;
}

.default-text-font,
.tpl-damcuoi .damcuoi-default-text {
  font-family: var(--default-text-font, var(--body-font, 'Be Vietnam Pro')), sans-serif;
}

.damcuoi-topbar,
.damcuoi-top-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 58px 22px 6px;
  font-size: 9.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--damcuoi-muted);
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 700;
}
.damcuoi-topbar span:first-child,
.damcuoi-top-bar span:first-child { text-align: left; }
.damcuoi-topbar span:nth-child(2),
.damcuoi-top-bar span:nth-child(2) { text-align: center; }
.damcuoi-topbar span:last-child,
.damcuoi-top-bar span:last-child { text-align: right; }

.damcuoi-script-header {
  text-align: center;
  font-size: clamp(38px, 10vw, 46px);
  font-weight: 400;
  color: #4A3B34;
  line-height: 1.15;
  margin: 4px 0 8px;
}

.damcuoi-divider-3col,
.damcuoi-divider-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 10px 22px;
  margin: 14px 0;
  border-top: 1px solid rgba(90, 74, 66, 0.2);
  border-bottom: 1px solid rgba(90, 74, 66, 0.2);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--damcuoi-primary);
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 700;
}
.damcuoi-divider-3col span:first-child,
.damcuoi-divider-bar span:first-child { text-align: left; }
.damcuoi-divider-3col span:nth-child(2),
.damcuoi-divider-bar span:nth-child(2) { text-align: center; }
.damcuoi-divider-3col span:last-child,
.damcuoi-divider-bar span:last-child { text-align: right; }

/* Interactive 3D Sealed Cream Envelope -> Opens & Extracts Couple Photo Out */
.damcuoi-envelope-stage {
  position: relative;
  width: calc(100% - 36px);
  max-width: 344px;
  height: 300px;
  margin: 22px auto 16px;
  cursor: pointer;
  user-select: none;
  perspective: 1100px;
}

.damcuoi-envelope-photo-card {
  position: absolute;
  left: 16px;
  right: 16px;
  top: 6px;
  height: 254px;
  background: #FFFFFF;
  padding: 8px 8px 30px;
  border-radius: 10px;
  box-shadow: 0 12px 30px rgba(44, 37, 32, 0.2);
  border: 1px solid rgba(90, 74, 66, 0.14);
  z-index: 2;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate3d(0, 48px, 0) scale(0.86);
  transition:
    transform 0.85s cubic-bezier(0.22, 1, 0.36, 1) 0.32s,
    opacity 0.45s ease 0.28s,
    visibility 0s linear 0.28s,
    box-shadow 0.85s ease 0.32s;
  will-change: transform, opacity;
}

.damcuoi-envelope-stage.is-opening .damcuoi-envelope-photo-card {
  opacity: 1;
  visibility: visible;
  z-index: 6;
  transform: translate3d(0, 0, 0) scale(1);
  box-shadow: 0 18px 38px rgba(44, 37, 32, 0.25);
}

.damcuoi-envelope-stage.is-opened .damcuoi-envelope-photo-card {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  z-index: 6;
  transform: translate3d(0, 0, 0) scale(1);
  box-shadow: 0 18px 38px rgba(44, 37, 32, 0.25);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.damcuoi-envelope-photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 6px;
  display: block;
}

.damcuoi-envelope-photo-caption {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 6px;
  text-align: center;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #5A4A42;
  text-transform: uppercase;
}

.damcuoi-envelope-shell {
  position: absolute;
  left: 0;
  right: 0;
  top: 26px;
  height: 224px;
  z-index: 4;
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
  visibility: visible;
  transition:
    transform 0.78s cubic-bezier(0.22, 1, 0.36, 1) 0.52s,
    opacity 0.68s ease 0.52s,
    visibility 0s linear 1.3s;
  will-change: transform, opacity;
}

.damcuoi-envelope-custom-cover {
  position: absolute;
  inset: 0;
  z-index: 5;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #D7C8B5;
  box-shadow: 0 18px 36px rgba(68, 50, 32, 0.18);
  background: #EFE7DC;
}

.damcuoi-envelope-custom-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.damcuoi-envelope-back {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #EFE7DC 0%, #E3D7C7 100%);
  border-radius: 12px;
  border: 1px solid #D2C2AD;
  box-shadow: 0 18px 36px rgba(68, 50, 32, 0.16);
  z-index: 1;
}

.damcuoi-envelope-front {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(180deg, transparent 46%, rgba(196, 178, 154, 0.28) 100%);
}
.damcuoi-envelope-front::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #F5EFE5 0%, #E5D8C6 100%);
  clip-path: polygon(0 0, 52% 56%, 0 100%);
  filter: drop-shadow(1px 0 2px rgba(68, 50, 32, 0.12));
}
.damcuoi-envelope-front::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(225deg, #F5EFE5 0%, #DFD0BC 100%);
  clip-path: polygon(100% 0, 48% 56%, 100% 100%);
  filter: drop-shadow(-1px 0 2px rgba(68, 50, 32, 0.12));
}

.damcuoi-envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 126px;
  background: linear-gradient(180deg, #F8F3EC 0%, #E8DCCB 100%);
  clip-path: polygon(0 0, 50% 100%, 100% 0);
  filter: drop-shadow(0 6px 10px rgba(58, 40, 22, 0.18));
  z-index: 4;
  transform-origin: top center;
  transform: rotateX(0deg);
  transition: transform 0.58s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.damcuoi-wax-seal {
  position: absolute;
  left: 50%;
  top: 124px;
  transform: translate(-50%, -50%) scale(1);
  z-index: 6;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #B88F5D 0%, #866138 65%, #5E4122 100%);
  box-shadow: 0 6px 14px rgba(58, 38, 18, 0.34), inset 0 2px 4px rgba(255, 255, 255, 0.3);
  border: 2px solid rgba(242, 223, 196, 0.68);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF8EE;
  font-size: 18px;
  opacity: 1;
  transition: transform 0.38s ease, opacity 0.38s ease;
}

.damcuoi-envelope-stage.is-opening .damcuoi-wax-seal,
.damcuoi-envelope-stage.is-opened .damcuoi-wax-seal {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.65);
}

.damcuoi-envelope-stage.is-opening .damcuoi-envelope-flap,
.damcuoi-envelope-stage.is-opened .damcuoi-envelope-flap {
  transform: rotateX(180deg);
}

.damcuoi-envelope-stage.is-opening .damcuoi-envelope-shell {
  opacity: 0;
  transform: translate3d(0, 46px, 0) scale(0.92);
  pointer-events: none;
}

.damcuoi-envelope-stage.is-opened .damcuoi-envelope-shell {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate3d(0, 46px, 0) scale(0.92);
  transition: none;
}

.damcuoi-envelope-hint {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  text-align: center;
  font-size: 11.5px;
  font-style: italic;
  color: var(--damcuoi-muted);
  font-family: "Cormorant Garamond", Georgia, serif;
}

/* Family Grid & Ceremony Details */
.damcuoi-family-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 10px 18px 14px;
  text-align: center;
}
.damcuoi-family-title {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #3E332E;
  margin-bottom: 4px;
}
.damcuoi-family-names {
  font-size: 12px;
  line-height: 1.58;
  color: #4E3E37;
  white-space: pre-line;
}

.damcuoi-invite-center {
  padding: 6px 20px 18px;
  text-align: center;
}
.damcuoi-invite-headline {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #2E2623;
}
.damcuoi-invite-sub {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #6E5A4F;
  line-height: 1.55;
  margin: 4px 0 12px;
}

.damcuoi-time-Highlight {
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  align-items: center;
  max-width: 340px;
  margin: 8px auto 6px;
  padding: 8px 4px;
  border-top: 1px solid rgba(90, 74, 66, 0.22);
  border-bottom: 1px solid rgba(90, 74, 66, 0.22);
}
.damcuoi-time-col {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #2E2623;
  text-transform: uppercase;
}
.damcuoi-time-col.is-center {
  border-left: 1px solid rgba(90, 74, 66, 0.35);
  border-right: 1px solid rgba(90, 74, 66, 0.35);
  padding: 4px 8px;
  font-size: 15.5px;
  color: #5A4A42;
}
.damcuoi-lunar-line {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 12.5px;
  font-style: italic;
  color: #6E5A4F;
  margin-top: 4px;
}

.damcuoi-venue-card {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(90, 74, 66, 0.18);
  border-radius: 14px;
  padding: 14px 16px;
  box-shadow: 0 6px 18px rgba(68, 50, 32, 0.06);
}
.damcuoi-venue-name {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #2E2623;
}
.damcuoi-venue-addr {
  font-size: 12.5px;
  color: #5A4A42;
  margin-top: 3px;
  line-height: 1.5;
}
.damcuoi-map-pill {
  display: inline-block;
  margin-top: 10px;
  padding: 7px 20px;
  border-radius: 999px;
  background: #5A4A42;
  color: #FFFFFF;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(58, 45, 39, 0.2);
}

/* Scene 2: Caption Photo */
.damcuoi-caption-photo {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(44, 37, 32, 0.15);
  margin: 10px 0 12px;
  cursor: pointer;
}
.damcuoi-caption-photo img {
  width: 100%;
  aspect-ratio: 4 / 4.6;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.damcuoi-caption-bar {
  background: rgba(34, 28, 25, 0.88);
  color: #F7F3EE;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 12px;
  font-style: italic;
  padding: 9px 12px;
  text-align: center;
  letter-spacing: 0.04em;
}

/* Scene 3: MY LOVER Side-by-Side */
.damcuoi-section-title {
  text-align: center;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #3E332E;
  margin-bottom: 14px;
}
.damcuoi-lover-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 0 18px 12px;
}
.damcuoi-lover-card {
  background: #FFFFFF;
  padding: 8px 8px 12px;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(44, 37, 32, 0.09);
  text-align: center;
  border: 1px solid rgba(90, 74, 66, 0.12);
}
.damcuoi-lover-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  border-radius: 6px;
  display: block;
}
.damcuoi-lover-role {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #7C6E63;
  margin-top: 8px;
}
.damcuoi-lover-name {
  font-size: 23px;
  color: #3E332E;
  line-height: 1.2;
  margin-top: 2px;
}

/* Scene 4: Kodak 400 Film Strip & Countdown */
.damcuoi-film-strip {
  position: relative;
  background: #181514;
  padding: 22px 32px;
  margin: 12px 18px;
  border-radius: 6px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.26);
  color: #F4EFEA;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.damcuoi-film-strip::before,
.damcuoi-film-strip::after {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  width: 12px;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.85) 0px,
    rgba(255, 255, 255, 0.85) 9px,
    transparent 9px,
    transparent 20px
  );
  border-radius: 2px;
  opacity: 0.85;
}
.damcuoi-film-strip::before { left: 9px; }
.damcuoi-film-strip::after { right: 9px; }

.damcuoi-film-frame {
  background: #0F0D0C;
  padding: 6px 6px 10px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.damcuoi-film-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: top center;
  display: block;
  border-radius: 2px;
}
.damcuoi-film-caption {
  margin-top: 7px;
  text-align: center;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 12.5px;
  font-style: italic;
  color: #EAE0D5;
  letter-spacing: 0.04em;
}

.damcuoi-countdown-wrap {
  padding: 14px 20px 18px;
  text-align: center;
}
.damcuoi-countdown-title {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #6E5A4F;
  margin-bottom: 10px;
}
.damcuoi-countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.damcuoi-cd-box {
  background: #FFFFFF;
  border: 1px solid rgba(90, 74, 66, 0.2);
  border-radius: 12px;
  padding: 10px 4px;
  box-shadow: 0 6px 16px rgba(68, 50, 32, 0.08);
}
.damcuoi-cd-num {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 24px;
  font-weight: 700;
  color: #3E332E;
  line-height: 1.1;
}
.damcuoi-cd-label {
  font-size: 11px;
  color: #7C6E63;
  margin-top: 2px;
}

/* Scene 5: Overlapping Photo Collage */
.damcuoi-collage-grid {
  position: relative;
  padding: 14px 20px 22px;
}
.damcuoi-vertical-tag,
.damcuoi-collage-vertical-tag {
  position: absolute;
  left: 8px;
  top: 44px;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 9.5px;
  letter-spacing: 0.32em;
  color: var(--damcuoi-primary);
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 700;
}
.damcuoi-collage-main,
.damcuoi-collage-main-photo {
  margin-left: 34px;
  width: calc(100% - 34px);
  aspect-ratio: 3 / 4;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 14px 30px rgba(44, 37, 32, 0.16);
}
.damcuoi-collage-main img,
.damcuoi-collage-main-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.damcuoi-collage-sub,
.damcuoi-collage-sub-photo {
  position: relative;
  margin-top: -108px;
  margin-left: 6px;
  width: 55%;
  aspect-ratio: 3 / 3.8;
  background: #FFFFFF;
  padding: 6px;
  border-radius: 8px;
  box-shadow: 0 14px 28px rgba(44, 37, 32, 0.22);
  z-index: 2;
}
.damcuoi-collage-sub img,
.damcuoi-collage-sub-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 4px;
  display: block;
}

/* Scene 6: Save the Date Calendar Photo Overlay */
.damcuoi-calendar-photo-card {
  position: relative;
  margin: 12px 18px 18px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(44, 37, 32, 0.22);
}
.damcuoi-calendar-photo-card > img {
  width: 100%;
  aspect-ratio: 3 / 4.2;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.damcuoi-calendar-overlay,
.damcuoi-calendar-glass {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(24, 18, 15, 0.22) 0%,
    rgba(24, 18, 15, 0.56) 50%,
    rgba(24, 18, 15, 0.86) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px 16px;
  color: #FFFFFF;
}
.damcuoi-calendar-header {
  text-align: center;
  margin-bottom: 12px;
}
.damcuoi-calendar-header h4 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.damcuoi-calendar-header p {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 13px;
  letter-spacing: 0.18em;
  opacity: 0.9;
  margin-top: 2px;
}
.damcuoi-calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 8px;
}
.damcuoi-calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  row-gap: 6px;
  text-align: center;
}
.damcuoi-calendar-day {
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  color: #FFFFFF;
}
.damcuoi-calendar-day.is-highlight {
  width: 30px;
  height: 30px;
  margin: 0 auto;
  border-radius: 999px;
  background: #C95B6E;
  color: #FFFFFF;
  font-weight: 700;
  box-shadow: 0 3px 10px rgba(201, 91, 110, 0.55);
}

/* Scene 7: Gift Card & RSVP Card */
.damcuoi-gift-card {
  margin: 6px 18px 18px;
  padding: 20px 16px;
  background: #FFFFFF;
  border-radius: 16px;
  border: 1px solid rgba(90, 74, 66, 0.16);
  box-shadow: 0 10px 26px rgba(68, 50, 32, 0.08);
  text-align: center;
}
.damcuoi-rsvp-card {
  margin: 0 18px 22px;
  padding: 22px 18px;
  background: #FFFFFF;
  border-radius: 16px;
  border: 1px solid rgba(90, 74, 66, 0.16);
  box-shadow: 0 10px 26px rgba(68, 50, 32, 0.08);
}

@media (prefers-reduced-motion: reduce) {
  .damcuoi-envelope-photo-card,
  .damcuoi-envelope-shell,
  .damcuoi-envelope-flap,
  .damcuoi-wax-seal {
    transition: none !important;
  }
}

/* Biến CSS & Class riêng cho Tên Cô Dâu Chú Rể ngay sau "TRÂN TRỌNG BÁO TIN LỄ THÀNH HÔN CỦA" */
:root {
  --font-couple-names: "Be Vietnam Pro", sans-serif;
}

.couple-announce-names {
  font-family: var(--font-couple-names, "Be Vietnam Pro", sans-serif);
}

/* ==========================================================================
   MẪU 4: LUXURY EDITORIAL (TẠP CHÍ NGHỆ THUẬT & KHUNG VÒM TINH TẾ)
   Bảng màu: Kem Ngà (#FAF8F5), Cát Ấm (#F2ECE4), Xanh Slate Đậm (#1E2A38),
             Vàng Champagne (#B89B72).
   ========================================================================== */
.tpl-editorial {
  --ed-primary: var(--primary-color, #1E2A38);
  --ed-bg: var(--secondary-color, #FAF8F5);
  --ed-sand: #F2ECE4;
  --ed-gold: #B89B72;
  --ed-line: #DDD4C6;
  --ed-muted: #6E655C;
  background-color: var(--ed-bg);
  color: var(--ed-primary);
}

.tpl-editorial .ed-serif {
  font-family: "Cormorant Garamond", "Playfair Display", Georgia, serif;
}

.ed-masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 58px 22px 12px;
  border-bottom: 1px solid var(--ed-line);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ed-muted);
}

.ed-gatefold-card {
  position: relative;
  margin: 18px 20px 8px;
  padding: 20px 16px 24px;
  background: linear-gradient(180deg, #FFFFFF 0%, #F7F3EC 100%);
  border: 1px solid var(--ed-line);
  border-radius: 16px;
  box-shadow: 0 16px 38px rgba(30, 42, 56, 0.08);
  text-align: center;
  cursor: pointer;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.7s ease;
}

.ed-gatefold-card.opening,
.ed-gatefold-card.is-opening {
  transform: translateY(-6px) scale(1.01);
}

.ed-arch-frame {
  position: relative;
  padding: 8px;
  border: 1px solid var(--ed-gold);
  border-radius: 220px 220px 10px 10px;
  background: #FFFFFF;
  box-shadow: 0 16px 38px rgba(30, 42, 56, 0.09);
}

.ed-arch-inner {
  overflow: hidden;
  border-radius: 212px 212px 6px 6px;
  aspect-ratio: 3 / 4.05;
  position: relative;
  background: var(--ed-sand);
}

.ed-arch-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
  transition: transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}

.ed-monogram-badge {
  width: 64px;
  height: 64px;
  margin: -32px auto 12px;
  border-radius: 9999px;
  background: var(--ed-primary);
  color: #FAF8F5;
  border: 2px solid var(--ed-gold);
  box-shadow: 0 8px 22px rgba(30, 42, 56, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.08em;
  position: relative;
  z-index: 5;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.ed-chapter-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.ed-chapter-num {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 14px;
  font-style: italic;
  font-weight: 600;
  color: var(--ed-gold);
  letter-spacing: 0.12em;
}

.ed-chapter-line {
  flex: 1;
  height: 1px;
  background: var(--ed-line);
}

.ed-chapter-label {
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ed-muted);
}

.ed-hairline-grid {
  border-top: 1px solid var(--ed-line);
  border-bottom: 1px solid var(--ed-line);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  text-align: center;
}

.ed-hairline-cell {
  padding: 14px 6px;
}

.ed-hairline-cell + .ed-hairline-cell {
  border-left: 1px solid var(--ed-line);
}

.ed-couple-stagger {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: start;
}

.ed-couple-card {
  background: #FFFFFF;
  border: 1px solid var(--ed-line);
  padding: 8px 8px 14px;
  box-shadow: 0 10px 26px rgba(30, 42, 56, 0.06);
  text-align: center;
}

.ed-couple-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.ed-couple-card.is-offset {
  margin-top: 26px;
}

.ed-btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border: 1px solid var(--ed-primary);
  background: transparent;
  color: var(--ed-primary);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.ed-btn-outline:hover {
  background: var(--ed-primary);
  color: #FFFFFF;
}

.ed-btn-solid {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border: 1px solid var(--ed-primary);
  background: var(--ed-primary);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(30, 42, 56, 0.16);
  transition: opacity 0.25s ease;
}

@media (prefers-reduced-motion: reduce) {
  .ed-gatefold-card,
  .ed-arch-inner img,
  .ed-monogram-badge {
    transition: none !important;
  }
}