:root {
  --color-background: #F7F3EC;
  --color-paper: #FCFAF6;
  --color-text: #302D29;
  --color-muted: #6F675F;
  --color-line: #D9D0C4;
  --color-accent: #A98262;
  --color-accent-text: #745A48;
  --color-deep: #5C493B;
  --color-light: #FFFDF8;
  --color-scrim: rgba(35, 31, 27, 0.34);

  --palette-cream: #F3EBDD;
  --palette-oatmeal: #DDD0BA;
  --palette-milk-tea: #C8AD8D;
  --palette-camel: #A98262;
  --palette-mocha: #745A48;
  --palette-sage-brown: #8A806B;

  --font-display: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-serif: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --font-sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 5rem;
  --space-8: 7rem;

  --content-gutter: clamp(1.25rem, 5.2vw, 3rem);
  --content-max: 78rem;
  --copy-max: 35rem;
  --line-thin: 1px;
  --focus-ring: 2px solid #745A48;

  --duration-fast: 220ms;
  --duration-reveal: 860ms;
  --duration-envelope: 820ms;
  --duration-preview-rise: 720ms;
  --duration-preview-expand: 1200ms;
  --duration-intro-exit: 300ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-envelope: cubic-bezier(0.65, 0, 0.2, 1);

  --z-base: 0;
  --z-content: 10;
  --z-floating: 40;
  --z-modal: 180;
  --z-skip: 100;
  --z-intro: 200;
}

html {
  background: var(--color-background);
  color: var(--color-text);
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  overflow-x: hidden;
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.8;
}

main {
  overflow: clip;
}

#main-content:focus {
  outline: none;
}

::selection {
  background: #D9C6AD;
  color: var(--color-text);
}

html.intro-pending,
html.intro-pending body {
  overflow: hidden;
  overscroll-behavior: none;
}

/* Opening envelope */
.envelope-intro {
  display: none;
}

.js.intro-pending .envelope-intro {
  position: fixed;
  z-index: var(--z-intro);
  inset: 0;
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  place-items: center;
  overflow: hidden;
  padding:
    max(1.5rem, env(safe-area-inset-top))
    max(1.25rem, env(safe-area-inset-right))
    max(1.5rem, env(safe-area-inset-bottom))
    max(1.25rem, env(safe-area-inset-left));
  background: #F0E9DE;
  color: var(--color-text);
  opacity: 1;
  transition: opacity var(--duration-intro-exit) ease-in, visibility var(--duration-intro-exit) step-end;
}

.envelope-intro::before {
  position: absolute;
  inset: clamp(0.75rem, 3vw, 1.75rem);
  border: 1px solid rgba(116, 90, 72, 0.18);
  content: "";
  pointer-events: none;
  transition: opacity 480ms ease-in;
}

.envelope-intro__inner {
  position: relative;
  width: min(100%, 32rem);
  text-align: center;
  transform: translate3d(0, 0, 0) scale(1);
  transition: opacity 480ms ease-in, transform 760ms var(--ease-out);
}

.envelope-button {
  display: grid;
  width: 100%;
  min-height: 44px;
  justify-items: center;
  padding: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  touch-action: manipulation;
}

.envelope-button:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 0.65rem;
}

.envelope-button:disabled {
  cursor: default;
}

.envelope-scene {
  position: relative;
  width: min(84vw, 25rem);
  aspect-ratio: 1.34 / 1;
  perspective: 75rem;
}

.envelope-shadow {
  position: absolute;
  right: 8%;
  bottom: 6.5%;
  left: 8%;
  height: 0.8rem;
  border-radius: 50%;
  background: rgba(70, 57, 45, 0.2);
  filter: blur(0.7rem);
  opacity: 0.7;
  transform: scaleX(1);
  transition: opacity var(--duration-envelope) ease, transform var(--duration-envelope) var(--ease-out);
}

.envelope {
  position: absolute;
  right: 0;
  bottom: 8%;
  left: 0;
  height: 70%;
  transform: translate3d(0, 0, 0) scale(1);
  transform-style: preserve-3d;
  transition: opacity 480ms ease-in, transform 760ms var(--ease-out);
}

.envelope__back,
.envelope__letter,
.envelope__flap,
.envelope__pocket,
.envelope__pocket::before,
.envelope__pocket::after {
  position: absolute;
  inset: 0;
  display: block;
}

.envelope__back {
  z-index: 1;
  border: 1px solid rgba(91, 71, 54, 0.16);
  background: #D8C8B1;
}

.envelope__letter {
  z-index: 2;
  top: auto;
  right: auto;
  bottom: 5%;
  left: 50%;
  width: 72%;
  height: auto;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid rgba(116, 90, 72, 0.12);
  background: #6F655B;
  color: var(--color-light);
  transform: translate3d(-50%, 0, 0);
  transform-origin: center;
  backface-visibility: hidden;
  transition: transform var(--duration-preview-rise) cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.envelope-preview__media,
.envelope-preview__placeholder,
.envelope-preview__media img,
.envelope-preview__scrim {
  position: absolute;
  inset: 0;
}

.envelope-preview__media {
  display: block;
  overflow: hidden;
  background: #85786B;
}

.envelope-preview__placeholder {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 0.2rem;
  padding: 1rem;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.07), transparent 45%),
    #85786B;
  color: rgba(255, 253, 248, 0.72);
  font-family: var(--font-display);
  font-size: clamp(0.54rem, 1.8vw, 0.72rem);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-align: center;
}

.envelope-preview__placeholder small {
  max-width: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  font-size: 0.46rem;
  letter-spacing: 0;
  text-overflow: ellipsis;
  text-transform: none;
  white-space: nowrap;
}

.envelope-preview__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 420ms ease;
}

.envelope-preview__media.is-loaded img {
  opacity: 1;
}

.envelope-preview__scrim {
  z-index: 1;
  background: linear-gradient(to bottom, rgba(28, 25, 22, 0.08) 28%, rgba(28, 25, 22, 0.54) 100%);
}

.envelope-preview__content {
  position: absolute;
  z-index: 2;
  right: var(--content-gutter);
  bottom: clamp(8.5rem, 20svh, 12rem);
  left: var(--content-gutter);
  display: block;
  text-align: center;
  text-shadow: 0 1px 16px rgba(20, 18, 16, 0.28);
}

.envelope__letter:not(.is-preview-layer) .envelope-preview__content {
  right: 6%;
  bottom: 8%;
  left: 6%;
}

.envelope-preview__kicker {
  display: block;
}

.envelope-preview__names,
.hero h1 {
  display: block;
  margin-top: 0.45rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 12.5vw, 5.8rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.96;
}

.envelope-preview__names i,
.hero h1 span {
  display: block;
  margin-block: -0.1em;
  font-size: 0.62em;
  font-style: italic;
}

.envelope-preview__meta,
.hero__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 1.35rem;
  font-size: 0.88rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.envelope-preview__meta i,
.hero__meta span {
  width: 2rem;
  height: 1px;
  background: rgba(255, 255, 255, 0.58);
}

.envelope__letter:not(.is-preview-layer) .envelope-preview__kicker {
  font-size: clamp(0.38rem, 1.75vw, 0.5rem);
  letter-spacing: 0.16em;
}

.envelope__letter:not(.is-preview-layer) .envelope-preview__names {
  margin-top: 0.2rem;
  font-size: clamp(1.4rem, 7.2vw, 2rem);
  line-height: 0.82;
}

.envelope__letter:not(.is-preview-layer) .envelope-preview__meta {
  gap: 0.42rem;
  margin-top: 0.55rem;
  font-size: clamp(0.4rem, 1.8vw, 0.52rem);
  letter-spacing: 0.11em;
}

.envelope__letter:not(.is-preview-layer) .envelope-preview__meta i {
  width: 0.9rem;
}

.envelope__flap {
  z-index: 5;
  height: 62%;
  transform: rotateX(0deg);
  transform-origin: 50% 0;
  transform-style: preserve-3d;
  transition: transform var(--duration-envelope) var(--ease-envelope);
}

.envelope__flap-face {
  position: absolute;
  inset: 0;
  display: block;
  backface-visibility: hidden;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
}

.envelope__flap-face--front {
  background: #D4C0A3;
  backface-visibility: visible;
}

.envelope__pocket {
  z-index: 4;
  pointer-events: none;
}

.envelope__pocket::before,
.envelope__pocket::after {
  content: "";
}

.envelope__pocket::before {
  background: #E5D8C5;
  clip-path: polygon(0 0, 50% 54%, 100% 0, 100% 100%, 0 100%);
}

.envelope__pocket::after {
  background: #DDCDB7;
  clip-path: polygon(0 100%, 50% 42%, 100% 100%);
}

.envelope__seal {
  position: absolute;
  z-index: 6;
  top: 86%;
  left: 50%;
  width: clamp(3.15rem, 14vw, 3.75rem);
  height: clamp(3.15rem, 14vw, 3.75rem);
  color: #F8EFE4;
  font-family: var(--font-display);
  font-size: clamp(0.6rem, 2.8vw, 0.7rem);
  letter-spacing: 0.04em;
  transform: translate3d(-50%, -50%, 0) scale(1);
  transform-style: preserve-3d;
}

.envelope__seal-face {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.18rem;
  border: 1px solid rgba(69, 49, 36, 0.2);
  border-radius: 50%;
  background: #9E7458;
  backface-visibility: hidden;
}

.envelope__seal-face--back {
  background: #956C52;
  transform: rotateX(180deg);
}

.envelope__seal-face i {
  width: 1px;
  height: 0.9rem;
  background: rgba(248, 239, 228, 0.52);
}

.envelope-button:not(:disabled):hover .envelope,
.envelope-button:not(:disabled):focus-visible .envelope {
  transform: translate3d(0, -0.2rem, 0) scale(1.005);
}

.envelope-button:not(:disabled):active .envelope {
  transform: translate3d(0, 0.12rem, 0) scale(0.995);
  transition-duration: 100ms;
}

.envelope-intro.is-opening .envelope__flap {
  z-index: 2;
  transform: rotateX(180deg);
}

.envelope-intro.is-card-rising .envelope__letter {
  transform: translate3d(-50%, -66%, 0);
}

.envelope-intro.is-card-front .envelope__letter {
  z-index: 3;
}

.envelope-intro.is-opening .envelope {
  transform: translate3d(0, 2%, 0) scale(1.012);
}

.envelope-intro.is-opening .envelope-shadow {
  opacity: 0.42;
  transform: scaleX(0.88);
}

.envelope-intro .envelope__letter.is-preview-layer {
  position: fixed;
  z-index: 20;
  top: var(--preview-target-y);
  right: auto;
  bottom: auto;
  left: var(--preview-target-x);
  width: var(--preview-target-width);
  height: var(--preview-target-height);
  aspect-ratio: auto;
  border: 0;
  transform:
    translate3d(var(--preview-delta-x), var(--preview-delta-y), 0)
    scale(var(--preview-scale-x), var(--preview-scale-y));
  transform-origin: 0 0;
  backface-visibility: hidden;
  contain: layout paint;
  isolation: isolate;
  transition: none;
  will-change: transform;
}

.envelope-intro.is-expanding .envelope__letter.is-preview-layer {
  transform: translate3d(0, 0, 0) scale(1);
  transition: transform var(--duration-preview-expand) cubic-bezier(0.16, 1, 0.3, 1);
}

.envelope-intro.is-envelope-leaving .envelope-intro__inner {
  opacity: 0;
  pointer-events: none;
  transform: translate3d(0, 78vh, 0) scale(0.985);
  transition:
    opacity 520ms ease-in,
    transform 620ms cubic-bezier(0.4, 0, 0.65, 1);
}

.envelope-intro.is-envelope-leaving::before {
  opacity: 0;
}

.envelope-intro.is-exiting {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

/* Full-screen opening invitation */
.opening-invitation {
  display: none;
}

.js #main-content {
  transition: opacity 620ms var(--ease-out);
}

html.js.intro-pending #main-content {
  opacity: 0;
  pointer-events: none;
}

html.js.intro-pending.intro-revealing #main-content {
  opacity: 1;
}

.js.intro-pending .opening-invitation {
  position: fixed;
  z-index: var(--z-intro);
  inset: 0;
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  place-items: center;
  overflow: hidden;
  padding:
    max(1.25rem, env(safe-area-inset-top))
    max(1.25rem, env(safe-area-inset-right))
    max(1.25rem, env(safe-area-inset-bottom))
    max(1.25rem, env(safe-area-inset-left));
  background: #F1EADF;
  color: var(--color-text);
  opacity: 1;
  transition:
    opacity 420ms ease-in,
    visibility 420ms step-end;
}

.opening-invitation::before {
  position: absolute;
  inset: clamp(0.75rem, 3vw, 1.75rem);
  border: 1px solid rgba(116, 90, 72, 0.16);
  content: "";
  pointer-events: none;
}

.opening-invitation__loading {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  color: #5E554D;
  opacity: 0;
  text-align: center;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 320ms ease,
    visibility 320ms step-end;
}

.opening-invitation__loading > span {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.opening-invitation__loading > strong {
  margin-top: 0.45rem;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.opening-invitation__loading > i {
  position: relative;
  width: 4.5rem;
  height: 1px;
  margin-top: 1.35rem;
  overflow: hidden;
  background: rgba(116, 90, 72, 0.18);
}

.opening-invitation__loading > i::after {
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  content: "";
  transform: translateX(-100%);
  animation: guest-loading-line 1.6s ease-in-out infinite;
}

html.guest-loading .opening-invitation__loading {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0ms;
}

html.guest-loading .opening-invitation__inner {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate3d(0, 0.25rem, 0);
}

html.guest-loading .opening-invitation__recipient {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.opening-invitation__stage {
  position: relative;
  width: min(100%, 31rem);
}

.opening-invitation__inner {
  position: relative;
  width: 100%;
  transform: translate3d(0, 0, 0) scale(1);
  transform-origin: center;
  text-align: center;
  transition:
    opacity 620ms ease-in,
    transform 720ms cubic-bezier(0.4, 0, 0.25, 1);
  will-change: opacity, transform;
}

.opening-invitation__recipient {
  position: absolute;
  right: 0;
  bottom: calc(100% - clamp(1.25rem, 3vh, 1.75rem));
  left: 0;
  width: min(86vw, 27rem);
  margin-inline: auto;
  color: #5E554D;
  line-height: 1.45;
  opacity: 1;
  text-align: center;
  transform: translate3d(0, 0, 0);
  transition:
    opacity 280ms ease,
    transform 320ms var(--ease-out),
    visibility 280ms step-end;
}

.opening-invitation__recipient > span {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.74rem;
  font-weight: 300;
  letter-spacing: 0.16em;
}

.opening-invitation__recipient strong {
  display: block;
  max-width: 100%;
  margin-top: 0.18rem;
  font-family: var(--font-serif);
  font-size: clamp(1.12rem, 4.6vw, 1.5rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  overflow-wrap: anywhere;
}

.opening-invitation.is-opening .opening-invitation__recipient {
  opacity: 0;
  visibility: hidden;
  transform: translate3d(0, -0.25rem, 0);
}

html.guest-loading [data-guest-name],
[data-guest-name].is-loading {
  position: relative;
  min-width: 6.5em;
  color: transparent !important;
  text-shadow: none;
}

html.guest-loading [data-guest-name]::after,
[data-guest-name].is-loading::after {
  position: absolute;
  inset: 0;
  color: var(--color-muted);
  content: "姓名載入中…";
  font-family: var(--font-serif);
  font-size: 0.9em;
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: inherit;
  text-align: center;
  white-space: nowrap;
}

.opening-invitation__button {
  display: grid;
  width: 100%;
  min-width: 44px;
  min-height: 44px;
  justify-items: center;
  padding: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  touch-action: manipulation;
}

.opening-invitation__button:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 0.7rem;
}

.opening-invitation__button:disabled {
  cursor: default;
}

.opening-envelope-scene {
  position: relative;
  display: block;
  width: min(84vw, 24rem);
  aspect-ratio: 1.18 / 1;
  perspective: 75rem;
}

.opening-envelope__shadow {
  position: absolute;
  right: 8%;
  bottom: 8%;
  left: 8%;
  height: 0.8rem;
  border-radius: 50%;
  background: rgba(70, 57, 45, 0.18);
  filter: blur(0.7rem);
  opacity: 0.68;
  transform: scaleX(1);
  transition:
    opacity 720ms ease,
    transform 720ms var(--ease-out);
}

.opening-envelope {
  position: absolute;
  right: 0;
  bottom: 8%;
  left: 0;
  height: 65%;
  transform: translate3d(0, 0, 0);
  transform-style: preserve-3d;
}

.opening-envelope__back,
.opening-envelope__letter,
.opening-envelope__flap-layer,
.opening-envelope__flap,
.opening-envelope__pocket,
.opening-envelope__pocket::before,
.opening-envelope__pocket::after {
  position: absolute;
  inset: 0;
  display: block;
}

.opening-envelope__back {
  z-index: 1;
  border: 1px solid rgba(91, 71, 54, 0.14);
  background: #D8C8B1;
}

.opening-envelope__letter {
  z-index: 2;
  top: auto;
  right: auto;
  bottom: 0;
  left: 50%;
  width: 74%;
  height: 100%;
  overflow: hidden;
  border: 1px solid rgba(116, 90, 72, 0.15);
  background: #FCF9F3;
  box-shadow: 0 0.35rem 1.2rem rgba(75, 58, 45, 0.08);
  color: var(--color-text);
  transform: translate3d(-50%, 0, 0);
  transform-origin: center;
  transition: transform 820ms cubic-bezier(0.18, 0.78, 0.22, 1);
  will-change: transform;
}

.opening-envelope__letter::before {
  position: absolute;
  inset: 0.7rem;
  border: 1px solid rgba(169, 130, 98, 0.18);
  content: "";
}

.opening-envelope__letter-content {
  position: absolute;
  inset: 14% 8% auto;
  display: grid;
  justify-items: center;
  color: #4D443C;
  opacity: 1;
  transform: none;
}

.opening-envelope__guest {
  display: grid;
  max-width: 100%;
  justify-items: center;
  margin-bottom: clamp(0.45rem, 2vw, 0.68rem);
  color: var(--color-muted);
  font-family: var(--font-display);
  font-size: clamp(0.58rem, 2.4vw, 0.72rem);
  letter-spacing: 0.1em;
  line-height: 1.35;
}

.opening-envelope__guest strong {
  display: block;
  max-width: 100%;
  margin-top: 0.08rem;
  color: #5E554D;
  font-family: var(--font-serif);
  font-size: clamp(0.68rem, 2.8vw, 0.84rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.opening-envelope__names {
  font-family: var(--font-display);
  font-size: clamp(1.28rem, 6vw, 2rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1;
  white-space: nowrap;
}

.opening-envelope__names i {
  margin-inline: 0.08em;
  color: var(--color-accent-text);
  font-size: 0.78em;
  font-style: italic;
}

.opening-envelope__date {
  margin-top: 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(0.7rem, 2.8vw, 0.86rem);
  letter-spacing: 0.16em;
}

.opening-envelope__label {
  margin-top: 0.45rem;
  color: var(--color-muted);
  font-family: var(--font-display);
  font-size: clamp(0.54rem, 2.2vw, 0.68rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.opening-envelope__flap-layer {
  z-index: 5;
  height: 72%;
  perspective: 75rem;
  transform: translateZ(0);
}

.opening-envelope__flap {
  height: 100%;
  transform: rotateX(0deg);
  transform-origin: 50% 0;
  transform-style: preserve-3d;
  transition: transform 760ms var(--ease-envelope);
  will-change: transform;
}

.opening-envelope__flap-face {
  position: absolute;
  inset: 0;
  display: block;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  will-change: transform;
}

.opening-envelope__flap-face--front {
  background: #D4C0A3;
  transform: translateZ(0.1px);
}

.opening-envelope__flap-face--back {
  background: #CBB89D;
  clip-path: polygon(0 100%, 100% 100%, 50% 0);
  transform: rotateX(180deg) translateZ(0.1px);
}

.opening-envelope__seal {
  position: absolute;
  z-index: 2;
  top: 84%;
  left: 50%;
  display: grid;
  width: clamp(3.25rem, 14.5vw, 3.85rem);
  height: clamp(3.25rem, 14.5vw, 3.85rem);
  place-items: center;
  border: 1px solid rgba(65, 43, 29, 0.28);
  border-radius: 48% 52% 46% 54% / 53% 47% 55% 45%;
  background: radial-gradient(circle at 34% 28%, #B98A69 0 9%, #9E7458 38%, #815B43 100%);
  box-shadow:
    0 0.2rem 0.32rem rgba(65, 43, 29, 0.24),
    inset 0.12rem 0.14rem 0.18rem rgba(255, 239, 222, 0.3),
    inset -0.16rem -0.18rem 0.24rem rgba(63, 40, 27, 0.3);
  opacity: 1;
  transform: translate3d(-50%, -50%, 1px) scale(1);
  transition:
    opacity 280ms ease-in,
    transform 320ms ease-in;
}

.opening-envelope__seal::before {
  position: absolute;
  inset: 0.38rem;
  border: 1px solid rgba(244, 220, 197, 0.25);
  border-radius: 51% 49% 54% 46% / 48% 53% 47% 52%;
  box-shadow: 0 0 0 1px rgba(64, 41, 27, 0.12);
  content: "";
}

.opening-envelope__seal-heart {
  position: relative;
  z-index: 1;
  display: block;
  width: clamp(0.9rem, 4.2vw, 1.08rem);
  height: clamp(0.9rem, 4.2vw, 1.08rem);
  background: #704A35;
  filter:
    drop-shadow(0.06rem 0.06rem 0 rgba(238, 203, 174, 0.2))
    drop-shadow(-0.05rem -0.05rem 0 rgba(62, 38, 25, 0.28));
  transform: rotate(-45deg);
}

.opening-envelope__seal-heart::before,
.opening-envelope__seal-heart::after {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: inherit;
  content: "";
}

.opening-envelope__seal-heart::before {
  top: -50%;
  left: 0;
}

.opening-envelope__seal-heart::after {
  top: 0;
  left: 50%;
}

.opening-envelope__pocket {
  z-index: 4;
  pointer-events: none;
}

.opening-envelope__pocket::before,
.opening-envelope__pocket::after {
  content: "";
}

.opening-envelope__pocket::before {
  background: #E5D8C5;
  clip-path: polygon(0 0, 50% 54%, 100% 0, 100% 100%, 0 100%);
}

.opening-envelope__pocket::after {
  background: #DDCDB7;
  clip-path: polygon(0 100%, 50% 42%, 100% 100%);
}

.opening-invitation__hint {
  display: grid;
  align-items: center;
  justify-items: center;
  min-height: 44px;
  margin-top: clamp(0.9rem, 3vh, 1.5rem);
  color: #5E554D;
  font-family: var(--font-display);
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition:
    opacity 260ms ease-in,
    transform 320ms ease-in;
}

.opening-invitation__hint > span {
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  opacity: 0.72;
  transform: scale(0.985);
  transform-origin: center;
  animation: opening-hint-breathe 2.8s ease-in-out infinite;
  will-change: opacity, transform;
}

.opening-invitation.is-hint-hiding .opening-invitation__hint {
  opacity: 0;
  transform: translate3d(0, 0.3rem, 0);
}

.opening-invitation.is-seal-hiding .opening-envelope__seal {
  opacity: 0;
  transform: translate3d(-50%, -50%, 1px) scale(0.86);
}

.opening-invitation.is-flap-opening .opening-envelope__flap {
  transform: rotateX(180deg);
}

.opening-invitation.is-flap-opening .opening-envelope__letter {
  z-index: 3;
}

.opening-invitation.is-flap-behind .opening-envelope__flap-layer {
  z-index: 2;
}

.opening-invitation.is-letter-rising .opening-envelope__letter {
  z-index: 3;
  transform: translate3d(-50%, -78%, 0);
}

.opening-invitation.is-closing .opening-invitation__inner {
  opacity: 0;
  transform: translate3d(0, -0.25rem, 0) scale(1.055);
}

.opening-invitation.is-closing .opening-envelope__shadow {
  opacity: 0;
  transform: scaleX(1.08);
}

.opening-invitation.is-exiting {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: var(--z-skip);
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  transform: translateY(-160%);
  background: var(--color-paper);
  color: var(--color-text);
  font-weight: 500;
  transition: transform var(--duration-fast) ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.section-shell {
  width: min(calc(100% - (var(--content-gutter) * 2)), var(--content-max));
  margin-inline: auto;
}

.section-space {
  padding-block: var(--space-8);
}

.eyebrow {
  color: var(--color-muted);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow--light {
  color: rgba(255, 253, 248, 0.82);
}

.section-heading {
  margin-bottom: var(--space-5);
  text-align: center;
}

.section-heading h2 {
  margin-top: 0.4rem;
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 14vw, 4.75rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.95;
}

.section-heading h2 span {
  font-style: italic;
}

.section-heading--left {
  text-align: left;
}

.media-frame {
  --image-focus-x: 50%;
  --image-focus-y: 50%;

  position: relative;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
  background: #E7DED2;
  isolation: isolate;
}

.media-frame[data-focus="left"] {
  --image-focus-x: 35%;
}

.media-frame[data-focus="right"] {
  --image-focus-x: 65%;
}

.media-frame[data-focus="top"] {
  --image-focus-y: 35%;
}

.media-frame[data-focus="bottom"] {
  --image-focus-y: 65%;
}

.media-frame::after {
  position: absolute;
  z-index: 2;
  inset: 0;
  border: 1px solid rgba(74, 65, 56, 0.08);
  content: "";
  pointer-events: none;
}

.media-frame img {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--image-focus-x) var(--image-focus-y);
}

.js .media-frame img {
  opacity: 0;
  transition: opacity 420ms ease;
}

.js .media-frame.is-loaded img {
  opacity: 1;
}

.media-placeholder {
  position: absolute;
  z-index: 0;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  padding: 1.25rem;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.22), transparent 45%),
    #E6DDD0;
  color: #625A53;
  text-align: center;
}

.media-placeholder::before,
.media-placeholder::after {
  position: absolute;
  content: "";
  background: rgba(116, 90, 72, 0.17);
}

.media-placeholder::before {
  width: 1px;
  height: 22%;
}

.media-placeholder::after {
  width: 18%;
  height: 1px;
}

.media-placeholder span,
.media-placeholder small {
  position: relative;
  z-index: 1;
  padding-inline: 0.7rem;
  background: #E6DDD0;
}

.media-placeholder span {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.18em;
}

.media-placeholder small {
  margin-top: 0.4rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.05em;
}

.media-placeholder--dark {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.08), transparent 45%),
    #7C7064;
  color: #F7F3EC;
}

.media-placeholder--dark span,
.media-placeholder--dark small {
  background: #7C7064;
}

.media-frame--landscape {
  aspect-ratio: 3 / 2;
}

.media-frame--portrait {
  aspect-ratio: 2 / 3;
}

.media-frame--detail-portrait {
  aspect-ratio: 3 / 2;
}

/* Hero */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh;
  min-height: 0;
  margin-inline: auto;
  background: #6F655B;
  color: var(--color-light);
}

.media-frame--hero {
  position: absolute;
  inset: 0;
}

.hero__scrim {
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(to bottom, rgba(28, 25, 22, 0.08) 28%, rgba(28, 25, 22, 0.54) 100%);
  pointer-events: none;
}

.hero__content {
  position: absolute;
  z-index: var(--z-content);
  right: var(--content-gutter);
  bottom: clamp(11.25rem, 26svh, 14rem);
  left: var(--content-gutter);
  text-align: center;
  text-shadow: 0 1px 16px rgba(20, 18, 16, 0.28);
}

html.js.intro-pending .hero__content {
  opacity: 0;
  transform: translate3d(0, 0.75rem, 0);
}

.hero h1 {
  font-size: clamp(2rem, 9vw, 5.8rem);
}

.hero h1 span {
  display: inline;
  margin-inline: 0.08em;
  font-size: 0.76em;
}

.hero__meta {
  margin-top: 0.8rem;
  font-size: 0.72rem;
}

.hero-countdown {
  position: absolute;
  z-index: var(--z-content);
  right: var(--content-gutter);
  bottom: max(5.5rem, calc(env(safe-area-inset-bottom) + 4.75rem));
  left: var(--content-gutter);
  color: rgba(255, 253, 248, 0.92);
  line-height: 1;
  text-align: center;
  text-shadow: 0 1px 14px rgba(20, 18, 16, 0.35);
  pointer-events: none;
}

.hero-countdown__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(2.7rem, auto));
  justify-content: center;
  gap: clamp(0.35rem, 2.6vw, 1.15rem);
}

.hero-countdown__unit {
  display: grid;
  min-width: 0;
  justify-items: center;
  gap: 0.22rem;
}

.hero-countdown__unit strong {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 4.8vw, 1.45rem);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.hero-countdown__unit small {
  color: rgba(255, 253, 248, 0.72);
  font-family: var(--font-display);
  font-size: 0.5rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero-countdown.is-complete .hero-countdown__grid {
  opacity: 0.78;
}

.scroll-cue {
  position: absolute;
  z-index: var(--z-content);
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  left: 50%;
  display: flex;
  min-width: 3.25rem;
  min-height: 3.25rem;
  align-items: center;
  flex-direction: column;
  justify-content: flex-end;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.78);
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.scroll-cue i {
  position: relative;
  width: 1px;
  height: 1.8rem;
  margin-top: 0.45rem;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.35);
}

.scroll-cue i::after {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.95);
  content: "";
  transform: translateY(-100%);
  animation: scroll-line 2.6s ease-in-out infinite;
}

/* Invitation */
.invitation {
  background: var(--color-paper);
}

.narrow-copy {
  width: min(calc(100% - (var(--content-gutter) * 2)), var(--copy-max));
  margin-inline: auto;
  text-align: center;
}

.invitation__message {
  margin-top: var(--space-4);
  font-family: var(--font-serif);
  font-size: clamp(1.06rem, 4.5vw, 1.28rem);
  font-weight: 400;
  letter-spacing: 0.075em;
  line-height: 2.15;
}

.ornament-line {
  display: block;
  width: 1px;
  height: 3.5rem;
  margin: var(--space-4) auto 1.25rem;
  background: var(--color-line);
}

.signature {
  color: var(--color-muted);
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
}

.signature em {
  margin-inline: 0.2rem;
  font-weight: 400;
}

.photo-break--invitation {
  width: min(92%, 72rem);
  margin: var(--space-5) 0 var(--space-5) auto;
}

/* Date and time */
.date-time {
  background: var(--color-background);
}

.date-display {
  padding-block: var(--space-4);
  border-block: var(--line-thin) solid var(--color-line);
  text-align: center;
}

.date-display__number {
  font-family: var(--font-display);
  font-size: clamp(3.05rem, 15.4vw, 7rem);
  font-variant-numeric: lining-nums tabular-nums;
  letter-spacing: -0.045em;
  line-height: 0.9;
  white-space: nowrap;
}

.date-display__day {
  margin-top: 0.9rem;
  color: var(--color-muted);
  font-family: var(--font-display);
  font-size: 0.86rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.date-display__day span {
  margin-left: 0.5rem;
  font-family: var(--font-serif);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.schedule {
  margin-top: var(--space-5);
}

.schedule__item {
  display: grid;
  grid-template-columns: minmax(5.25rem, 0.85fr) 1.15fr;
  align-items: center;
  padding-block: var(--space-3);
  border-bottom: var(--line-thin) solid var(--color-line);
}

.schedule__item time {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 12vw, 4.5rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.035em;
  line-height: 1;
}

.schedule__item h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.schedule__item p {
  margin-top: 0.2rem;
  color: var(--color-muted);
  font-size: 0.86rem;
  letter-spacing: 0.15em;
}

/* Detail photos */
.detail-photos {
  padding-top: var(--space-4);
  background: var(--color-paper);
}

.detail-photos__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.detail-photo--large {
  width: 88%;
}

.detail-photo--small {
  width: 78%;
  margin-left: auto;
}

.detail-photo figcaption,
.gallery-photo figcaption {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 0.7rem;
  color: var(--color-muted);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.06em;
  line-height: 1.5;
}

.detail-photo figcaption::before,
.gallery-photo figcaption::before {
  width: 1.75rem;
  height: 1px;
  flex: 0 0 auto;
  background: var(--color-line);
  content: "";
}

/* Venue */
.venue {
  background: var(--color-paper);
}

.venue__layout {
  display: grid;
  gap: var(--space-5);
}

.media-frame--venue {
  aspect-ratio: 1 / 1;
}

.venue__name {
  padding-bottom: var(--space-3);
  border-bottom: var(--line-thin) solid var(--color-line);
}

.venue__name h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 6vw, 1.75rem);
  font-weight: 500;
  letter-spacing: 0.07em;
}

.venue__name p {
  margin-top: 0.35rem;
  color: var(--color-accent-text);
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.13em;
}

.venue__note {
  margin-top: var(--space-3);
  color: var(--color-muted);
  font-family: var(--font-serif);
  font-size: 0.92rem;
  letter-spacing: 0.035em;
  line-height: 2;
}

.venue__actions {
  display: grid;
  gap: 0.75rem;
  margin-top: var(--space-3);
}

.text-button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.55rem 1rem;
  border: var(--line-thin) solid var(--color-text);
  border-radius: 2px;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.4;
  touch-action: manipulation;
  transition: background-color var(--duration-fast) ease, color var(--duration-fast) ease;
}

.text-button svg {
  width: 1.1rem;
  height: 1.1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

/* Parking map dialog */
html.parking-dialog-open,
html.parking-dialog-open body {
  overflow: hidden;
}

html.parking-dialog-open body {
  padding-right: var(--parking-scrollbar-width, 0px);
}

.parking-dialog[hidden] {
  display: none;
}

.parking-dialog {
  position: fixed;
  z-index: var(--z-modal);
  inset: 0;
  overflow: hidden;
  background: rgba(34, 30, 27, 0.78);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 280ms ease, visibility 280ms ease;
}

.parking-dialog.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.parking-dialog__viewport {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  padding: max(1rem, env(safe-area-inset-top)) 4vw max(1rem, env(safe-area-inset-bottom));
}

.parking-dialog__panel {
  width: min(92vw, 72rem);
  margin: auto;
  opacity: 0;
  transform: translate3d(0, 0.75rem, 0) scale(0.99);
  transition: opacity 320ms ease, transform 420ms var(--ease-out);
}

.parking-dialog.is-open .parking-dialog__panel {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

.parking-dialog__close {
  position: sticky;
  z-index: 2;
  top: max(0.5rem, env(safe-area-inset-top));
  display: grid;
  width: 3rem;
  height: 3rem;
  margin: 0 0 0.75rem auto;
  place-items: center;
  border: 1px solid rgba(252, 250, 246, 0.55);
  border-radius: 50%;
  background: rgba(48, 45, 41, 0.74);
  color: var(--color-light);
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color var(--duration-fast) ease, color var(--duration-fast) ease;
}

.parking-dialog__close svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.5;
}

.parking-dialog__image-frame {
  width: 100%;
}

.parking-dialog__image-frame img {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  margin-inline: auto;
  object-fit: contain;
}

.parking-dialog__fallback {
  display: none;
  min-height: min(58vh, 28rem);
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(252, 250, 246, 0.3);
  background: var(--color-paper);
  color: var(--color-muted);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-align: center;
}

.parking-dialog__image-frame.is-missing img {
  display: none;
}

.parking-dialog__image-frame.is-missing .parking-dialog__fallback {
  display: flex;
}

.photo-break--venue {
  position: relative;
  width: min(100%, 90rem);
  margin-inline: auto;
}

.media-frame--cinematic {
  aspect-ratio: 3 / 2;
}

.photo-break--venue::after {
  position: absolute;
  z-index: 2;
  inset: 0;
  background: rgba(35, 31, 27, 0.2);
  content: "";
  pointer-events: none;
}

.photo-break--venue > p {
  position: absolute;
  z-index: 3;
  right: var(--content-gutter);
  bottom: var(--space-3);
  left: var(--content-gutter);
  color: var(--color-light);
  font-family: var(--font-serif);
  font-size: clamp(1rem, 4.5vw, 1.35rem);
  letter-spacing: 0.12em;
  text-align: center;
  text-shadow: 0 1px 12px rgba(32, 27, 23, 0.38);
}

/* Dress code */
.dress-code {
  background: var(--color-background);
}

.section-heading__subtitle {
  margin-top: var(--space-3);
  color: var(--color-accent-text);
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-style: italic;
  letter-spacing: 0.05em;
}

.section-heading__zh {
  margin-top: 0.25rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  letter-spacing: 0.14em;
}

.section-heading__note {
  margin-top: 0.65rem;
  color: var(--color-muted);
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
}

.dress-code__photos {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

.media-frame--dress-main {
  aspect-ratio: 3 / 2;
}

.media-frame--dress-detail {
  aspect-ratio: 3 / 2;
  width: 82%;
  margin-left: auto;
}

.palette {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: start;
  gap: clamp(0.45rem, 2.5vw, 1.15rem);
  max-width: 48rem;
  margin-inline: auto;
}

.swatch {
  min-width: 0;
  text-align: center;
}

.swatch__color {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--swatch);
  border: 1px solid rgba(48, 45, 41, 0.08);
}

.swatch h3 {
  margin-top: 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(0.58rem, 2.5vw, 0.82rem);
  font-weight: 500;
  letter-spacing: 0.035em;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.dress-code__copy {
  max-width: 32rem;
  margin: var(--space-5) auto 0;
  text-align: center;
}

.dress-code__copy p {
  font-family: var(--font-serif);
  font-size: 0.93rem;
  letter-spacing: 0.04em;
  line-height: 2;
}

.dress-code__copy .dress-code__avoid {
  margin-top: 1.1rem;
  color: var(--color-deep);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.08em;
}

/* Gallery */
.gallery {
  background: var(--color-paper);
}

.gallery__layout {
  display: grid;
  gap: var(--space-7);
}

.media-frame--gallery-wide {
  aspect-ratio: 3 / 2;
}

.gallery__pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.gallery-photo--pair-lower {
  width: 82%;
  margin-left: auto;
}

.media-frame--gallery-tall {
  aspect-ratio: 3 / 2;
}

.gallery-photo--left {
  width: 62%;
  margin-left: 6%;
}

.media-frame--gallery-small {
  aspect-ratio: 2 / 3;
}

.gallery-photo--closing {
  width: 94%;
  margin-left: auto;
}

.media-frame--gallery-closing {
  aspect-ratio: 3 / 2;
}

.gallery-photo--closing figcaption {
  justify-content: flex-end;
  text-align: right;
}

/* Footer */
.footer {
  position: relative;
  min-height: 0;
  display: block;
  background: #6F655B;
  color: var(--color-light);
}

.media-frame--footer {
  position: relative;
  width: min(100%, 52rem);
  aspect-ratio: 2 / 3;
  margin-inline: auto;
}

.footer__scrim {
  display: none;
}

.footer__content {
  position: relative;
  z-index: var(--z-content);
  width: min(calc(100% - (var(--content-gutter) * 2)), 35rem);
  margin-inline: auto;
  padding-block: var(--space-7);
  text-align: center;
  text-shadow: none;
}

.footer__content h2 {
  margin-top: 0.25rem;
  font-family: var(--font-display);
  font-size: clamp(3.8rem, 18vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1;
}

.footer__content > p:not(.eyebrow):not(.footer__names) {
  margin-top: var(--space-3);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  letter-spacing: 0.11em;
}

.footer__line {
  display: block;
  width: 1px;
  height: 3.5rem;
  margin: var(--space-4) auto;
  background: rgba(255, 255, 255, 0.55);
}

.footer time {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.18em;
}

.footer__names {
  margin-top: 0.55rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.06em;
}

.footer__names em {
  margin-inline: 0.2rem;
}

.back-to-top {
  display: inline-flex;
  min-width: 7.5rem;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  margin-top: var(--space-5);
  padding: 0.6rem 1rem;
  border-block: 1px solid rgba(255, 255, 255, 0.5);
  background: transparent;
  color: var(--color-light);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.76rem;
  letter-spacing: 0.13em;
  touch-action: manipulation;
  transition: background-color var(--duration-fast) ease;
}

.back-to-top svg {
  width: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

/* Music control */
.music-control {
  position: fixed;
  z-index: var(--z-floating);
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  border: 1px solid rgba(48, 45, 41, 0.28);
  border-radius: 50%;
  background: rgba(247, 243, 236, 0.92);
  color: var(--color-text);
  cursor: pointer;
  touch-action: manipulation;
  transition: opacity var(--duration-fast) ease, background-color var(--duration-fast) ease, color var(--duration-fast) ease, visibility var(--duration-fast) ease;
}

.music-unavailable .music-control {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.music-control__bars {
  display: flex;
  width: 1.1rem;
  height: 1.1rem;
  align-items: center;
  justify-content: center;
  gap: 0.18rem;
}

.music-control__bars i {
  display: block;
  width: 1px;
  height: 0.38rem;
  background: currentColor;
  transform-origin: center;
}

.music-control__bars i:nth-child(2) {
  height: 0.72rem;
}

.music-control.is-playing .music-control__bars i {
  animation: music-bars 1.1s ease-in-out infinite alternate;
}

.music-control.is-playing .music-control__bars i:nth-child(2) {
  animation-delay: -0.35s;
}

.music-control.is-playing .music-control__bars i:nth-child(3) {
  animation-delay: -0.7s;
}

/* Scroll reveal */
.js .reveal {
  opacity: 0;
  transform: translate3d(0, 1.1rem, 0);
  transition:
    opacity var(--duration-reveal) var(--ease-out),
    transform var(--duration-reveal) var(--ease-out);
  will-change: opacity, transform;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.js .reveal-image .media-frame {
  transform: scale(1.012);
  transition: transform calc(var(--duration-reveal) + 120ms) var(--ease-out);
}

.js .reveal-image.is-visible .media-frame {
  transform: scale(1);
}

@keyframes scroll-line {
  0% { transform: translateY(-100%); }
  50%, 100% { transform: translateY(100%); }
}

@keyframes music-bars {
  from { transform: scaleY(0.55); }
  to { transform: scaleY(1.35); }
}

@keyframes opening-hint-breathe {
  0%, 100% {
    opacity: 0.62;
    transform: scale(0.985);
  }
  50% {
    opacity: 1;
    transform: scale(1.018);
  }
}

@keyframes guest-loading-line {
  0% { transform: translateX(-100%); }
  50% { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal,
  .js .reveal.is-visible,
  .js .reveal-image .media-frame,
  .js .reveal-image.is-visible .media-frame {
    opacity: 1;
    transform: none;
    will-change: auto;
  }

  .scroll-cue i::after,
  .music-control.is-playing .music-control__bars i {
    animation: none;
  }

  .opening-invitation__hint > span {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .envelope-intro.is-opening .envelope {
    transform: translate3d(0, 0, 0) scale(1);
  }

  .envelope-intro.is-card-rising .envelope__letter,
  .envelope-intro .envelope__letter.is-preview-layer,
  .envelope-intro.is-expanding .envelope__letter.is-preview-layer,
  .envelope-intro.is-envelope-leaving .envelope-intro__inner,
  .envelope-intro.is-expanding .envelope-intro__inner {
    transform: none;
  }

  .opening-invitation,
  .js #main-content {
    transition-duration: 180ms !important;
  }

  .opening-invitation.is-closing .opening-invitation__inner,
  .opening-invitation.is-hint-hiding .opening-invitation__hint {
    transform: none !important;
  }

  .parking-dialog__panel,
  .parking-dialog.is-open .parking-dialog__panel {
    transform: none;
  }
}