:root {
  --black: #050302;
  --charcoal: #100b0a;
  --wine: #301014;
  --blood: #7a1720;
  --ember: #d1843e;
  --candle: #ffd48a;
  --paper: #d5c09a;
  --paper-ink: #211612;
  --muted: rgba(239, 219, 184, .68);
  --line: rgba(255, 226, 176, .16);
  --font: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-height: 100%;
  background: var(--black);
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: #f5dfbb;
  font-family: var(--font);
  background:
    radial-gradient(circle at 78% 20%, rgba(209, 132, 62, .18), transparent 22rem),
    radial-gradient(circle at 20% 78%, rgba(122, 23, 32, .16), transparent 24rem),
    linear-gradient(180deg, #060302, #120909 55%, #030202);
}

.experience {
  position: relative;
  z-index: 2;
}

.snap-section {
  min-height: 100vh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

body::before,
body::after,
.experience::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
}

body::before {
  z-index: 1;
  opacity: .34;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, .58), transparent 18%, transparent 82%, rgba(0, 0, 0, .72)),
    repeating-linear-gradient(90deg, rgba(255, 220, 160, .045) 0 1px, transparent 1px 18px);
  mix-blend-mode: multiply;
}

body::after {
  z-index: 7;
  opacity: .26;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='5' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.58'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.experience::before {
  z-index: -1;
  opacity: .72;
  background:
    radial-gradient(circle at 78% 42%, rgba(255, 157, 74, .3), transparent 9rem),
    radial-gradient(circle at 78% 42%, rgba(126, 44, 22, .28), transparent 18rem);
  mix-blend-mode: screen;
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.room-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.invitation-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(18rem, .86fr) minmax(24rem, 1.14fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
  padding: clamp(1.25rem, 4vw, 4rem);
}

.copy-panel {
  position: relative;
  z-index: 2;
  max-width: 42rem;
  text-shadow: 0 3px 20px rgba(0, 0, 0, .86);
  transition: opacity .4s ease, transform .4s ease;
}

.kicker,
.page-label,
.mode-label {
  margin: 0 0 1rem;
  color: var(--candle);
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .24em;
  text-transform: uppercase;
}

.mode-label {
  color: rgba(255, 212, 138, .68);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 1.2rem;
  color: #ffe6b9;
  font-size: clamp(4rem, 11vw, 10rem);
  font-weight: 500;
  line-height: .78;
  letter-spacing: -.08em;
  text-wrap: balance;
}

h1 small {
  display: block;
  max-width: 34rem;
  margin-top: 1.35rem;
  color: #c99b62;
  font-size: clamp(1.45rem, 3.8vw, 3.1rem);
  line-height: .9;
  letter-spacing: -.035em;
}

.intro {
  max-width: 34rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  line-height: 1.72;
}

[contenteditable="true"] {
  position: relative;
  z-index: 1;
  outline: 1px dashed rgba(255, 212, 138, .34);
  outline-offset: .18rem;
  border-radius: .18rem;
  cursor: text;
}

.paper [contenteditable="true"],
.cover-inside [contenteditable="true"] {
  z-index: 6;
}

[contenteditable="true"]:focus {
  outline-color: rgba(255, 212, 138, .85);
  box-shadow: 0 0 0 .32rem rgba(255, 212, 138, .08);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 2rem;
}

.button,
.book-controls button,
.details-card input,
.details-card select,
.details-card textarea {
  min-height: 3.1rem;
  border: 1px solid var(--line);
  border-radius: .25rem;
  padding: .85rem 1.15rem;
  cursor: pointer;
  color: #f6dcac;
  font-family: var(--sans);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  background: rgba(10, 6, 5, .62);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .035), 0 18px 40px rgba(0, 0, 0, .36);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}

.button:hover,
.book-controls button:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 212, 138, .5);
  background: rgba(51, 18, 18, .72);
}

.button-primary {
  color: #201006;
  border-color: rgba(255, 212, 138, .75);
  background: linear-gradient(135deg, #ffe1a6, #bd7138 58%, #68151b);
}

.book-panel {
  position: relative;
  z-index: 5;
  display: grid;
  place-items: center;
  min-height: min(74vh, 54rem);
  perspective: 1800px;
}

.book-wrap {
  position: relative;
  z-index: 5;
  width: min(82vw, 44rem);
  aspect-ratio: 1.34;
  transform-style: preserve-3d;
}

.book-shadow {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 4%;
  height: 16%;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(0, 0, 0, .82), transparent 70%);
  filter: blur(18px);
}

.book {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transform: rotateX(10deg) rotateZ(-1deg);
}

.cover,
.spread {
  position: absolute;
  inset: 0;
  border-radius: .55rem;
  transform-style: preserve-3d;
}

.cover {
  z-index: 8;
  transform-origin: left center;
}

.cover-front,
.cover-inside {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  -webkit-backface-visibility: visible;
  backface-visibility: visible;
  transform-style: preserve-3d;
  transition: opacity .18s ease;
}

.cover-front {
  display: grid;
  place-items: center;
  align-content: center;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1.5rem, 4vw, 3rem) clamp(5.6rem, 9vw, 7rem);
  color: #ecc58a;
  text-align: center;
  transform: translateZ(2px);
  background:
    radial-gradient(circle at 28% 20%, rgba(255, 255, 255, .08), transparent 10rem),
    linear-gradient(90deg, rgba(0, 0, 0, .5), transparent 12%, transparent 86%, rgba(0, 0, 0, .4)),
    repeating-linear-gradient(35deg, rgba(255, 255, 255, .025) 0 2px, transparent 2px 6px),
    linear-gradient(145deg, #311016, #130907 58%, #090403);
  border: 1px solid rgba(255, 205, 126, .18);
  box-shadow:
    inset 1.1rem 0 1.8rem rgba(0, 0, 0, .48),
    inset 0 0 0 .55rem rgba(97, 45, 24, .28),
    0 2rem 5rem rgba(0, 0, 0, .6);
}

.cover-front::before,
.cover-front::after {
  position: absolute;
  inset: 1.3rem;
  content: "";
  border: 1px solid rgba(255, 212, 138, .24);
  border-radius: .35rem;
  pointer-events: none;
}

.cover-front::after {
  inset: 2.1rem;
  border-color: rgba(255, 212, 138, .12);
}

.cover-front p {
  margin-bottom: .6rem;
  color: rgba(255, 225, 176, .62);
  font-family: var(--sans);
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .28em;
  text-transform: uppercase;
}

.cover-front h2 {
  max-width: 32rem;
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 5.2rem);
  font-weight: 500;
  line-height: .9;
  letter-spacing: -.05em;
  transform: translateY(-8%);
}

.cover-inside {
  display: flex;
  flex-direction: column;
  overflow: visible;
  gap: clamp(.22rem, .55vw, .42rem);
  padding: clamp(.72rem, 1.45vw, 1.05rem);
  color: var(--paper-ink);
  transform: scaleX(-1) translateZ(4px);
  opacity: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 16%, rgba(255, 247, 214, .74), transparent 12rem),
    linear-gradient(90deg, rgba(57, 29, 13, .26), transparent 15%, transparent 86%, rgba(57, 29, 13, .18)),
    repeating-linear-gradient(0deg, rgba(38, 22, 12, .035) 0 1px, transparent 1px 7px),
    linear-gradient(145deg, #e9d7b1, #c9ad78 58%, #977147);
  border: 1px solid rgba(55, 32, 18, .24);
  box-shadow:
    inset -1.2rem 0 1.7rem rgba(68, 39, 18, .28),
    inset 0 0 0 .55rem rgba(255, 250, 224, .14);
}

.cover.show-inside .cover-front {
  opacity: 0;
}

.cover.show-inside .cover-inside {
  opacity: 1;
  pointer-events: auto;
}

.cover-inside::before {
  position: absolute;
  inset: .56rem;
  content: "";
  border: 1px solid rgba(33, 22, 18, .12);
  pointer-events: none;
}

.cover-inside::after {
  position: absolute;
  inset: 0;
  opacity: .2;
  content: "";
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='p'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.65' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23p)'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  pointer-events: none;
  border-radius: inherit;
}

.cover-inside > * {
  position: relative;
  z-index: 1;
}

.cover-inside .page-label {
  margin-bottom: 0;
  font-size: clamp(.48rem, .82vw, .58rem);
  color: rgba(33, 22, 18, .58);
}

.polaroid-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: clamp(.28rem, .68vw, .48rem);
  align-items: stretch;
  flex: 1;
  min-height: 0;
  overflow: visible;
}

.polaroid {
  position: relative;
  z-index: 1;
  --tilt: 0deg;
  --lift-x: 0;
  --lift-y: 0;
  --lift-scale: 1;
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: clamp(.18rem, .42vw, .3rem) clamp(.18rem, .42vw, .3rem) clamp(.58rem, 1vw, .78rem);
  color: rgba(33, 22, 18, .7);
  font-family: var(--sans);
  font-size: clamp(.44rem, .72vw, .54rem);
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  background: #f8f1df;
  box-shadow: 0 .35rem .7rem rgba(45, 25, 10, .18);
  transform: translate(var(--lift-x), var(--lift-y)) rotate(var(--tilt)) scale(var(--lift-scale));
  transition: transform .22s ease, box-shadow .22s ease, z-index .22s ease;
  will-change: transform;
}

.polaroid.is-landscape {
  padding-bottom: clamp(.52rem, .9vw, .68rem);
}

.polaroid.is-portrait {
  justify-self: center;
  width: min(78%, 7.4rem);
  padding-bottom: clamp(.62rem, 1.1vw, .86rem);
}

.polaroid:hover,
.polaroid:focus-within,
.polaroid.is-featured,
.polaroid.is-dragging {
  z-index: 20;
  --lift-y: -5%;
  --lift-scale: 1.07;
  box-shadow: 0 .65rem 1rem rgba(45, 25, 10, .26);
}

.polaroid::before {
  position: absolute;
  top: -.18rem;
  left: 50%;
  width: 1.2rem;
  height: .34rem;
  content: "";
  transform: translateX(-50%) rotate(-2deg);
  background: rgba(236, 219, 174, .66);
  box-shadow: 0 .15rem .3rem rgba(0, 0, 0, .1);
}

.polaroid.is-hidden {
  display: none;
}

.tilt-left {
  --tilt: -4deg;
}

.tilt-right {
  --tilt: 4deg;
}

.tilt-soft {
  --tilt: -1deg;
}

.photo-placeholder,
.photo-preview {
  width: 100%;
  flex: 1;
  min-height: 0;
  aspect-ratio: auto;
  margin-bottom: .18rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 35% 28%, rgba(255, 223, 165, .8), transparent 1.8rem),
    linear-gradient(145deg, #1b1011, #5e2025 55%, #0b0708);
  cursor: grab;
  touch-action: none;
  user-select: none;
}

body[data-version="recipient"] .cover.show-inside .photo-placeholder,
body[data-version="recipient"] .cover.show-inside .photo-preview {
  cursor: zoom-in;
  touch-action: manipulation;
}

.photo-placeholder:active,
.photo-preview:active {
  cursor: grabbing;
}

.polaroid.is-landscape .photo-placeholder,
.polaroid.is-landscape .photo-preview {
  flex: .74;
}

.polaroid.is-portrait .photo-placeholder,
.polaroid.is-portrait .photo-preview {
  flex: 1.25;
}

.photo-placeholder img,
.photo-preview img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: var(--photo-x, 50%) var(--photo-y, 50%);
  pointer-events: none;
}

.photo-moon {
  background:
    radial-gradient(circle at 30% 24%, #e9dfbd 0 .8rem, transparent .86rem),
    linear-gradient(160deg, #121923, #2f3440 52%, #09090d);
}

.photo-candle {
  background:
    radial-gradient(circle at 50% 32%, #ffd48a 0 .45rem, rgba(255, 143, 61, .5) .5rem 1.3rem, transparent 1.45rem),
    linear-gradient(160deg, #2d100c, #74401e 58%, #0b0504);
}

.photo-raven {
  background:
    radial-gradient(ellipse at 50% 66%, #050505 0 1.9rem, transparent 2rem),
    radial-gradient(circle at 64% 40%, #050505 0 .72rem, transparent .78rem),
    linear-gradient(160deg, #9d8970, #312922 62%, #0c0908);
}

.photo-parlor {
  background:
    linear-gradient(90deg, rgba(0, 0, 0, .42), transparent 18%, transparent 82%, rgba(0, 0, 0, .52)),
    repeating-linear-gradient(90deg, #3a1715 0 1.1rem, #22100f 1.1rem 2.2rem);
}

.photo-tools,
.photo-add {
  display: none;
}

body[data-version="customer"] .photo-tools {
  position: absolute;
  left: .18rem;
  right: .18rem;
  bottom: .14rem;
  display: flex;
  justify-content: space-between;
  gap: .2rem;
}

body[data-version="customer"] .photo-tools label,
body[data-version="customer"] .photo-tools button {
  display: inline-flex;
  align-items: center;
  border: 0;
  padding: .1rem .18rem;
  cursor: pointer;
  color: rgba(33, 22, 18, .62);
  font-family: var(--sans);
  font-size: clamp(.46rem, .72vw, .56rem);
  font-weight: 900;
  letter-spacing: .08em;
  line-height: 1;
  text-transform: uppercase;
  background: transparent;
}

body[data-version="customer"] .photo-tools input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

body[data-version="customer"] .photo-add {
  align-self: flex-start;
  display: inline-grid;
  margin-top: 0;
  cursor: pointer;
}

.photo-lightbox {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  background:
    radial-gradient(circle at center, rgba(255, 212, 138, .1), transparent 24rem),
    rgba(2, 1, 1, .82);
  backdrop-filter: blur(12px);
  transition: opacity .24s ease, visibility .24s ease;
}

.photo-lightbox.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.photo-lightbox figure {
  position: relative;
  display: grid;
  gap: .7rem;
  width: min(92vw, 62rem);
  max-width: min(92vw, 62rem);
  max-height: 88svh;
  overflow: hidden;
  margin: 0;
  padding: clamp(.55rem, 1.4vw, .9rem) clamp(.55rem, 1.4vw, .9rem) clamp(1.1rem, 2vw, 1.6rem);
  color: rgba(33, 22, 18, .76);
  font-family: var(--sans);
  font-size: .82rem;
  font-weight: 900;
  text-align: center;
  background: #f8f1df;
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, .56);
  transform: scale(.96) translateY(.7rem);
  transition: transform .24s ease;
}

.photo-lightbox.is-open figure {
  transform: scale(1) translateY(0);
}

.photo-lightbox-frame {
  display: grid;
  place-items: center;
  width: 100%;
  max-height: calc(88svh - 5rem);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 45%, rgba(255, 244, 214, .48), transparent 62%),
    #211612;
}

.photo-lightbox img {
  max-width: 100%;
  max-height: calc(88svh - 5rem);
  display: block;
  width: auto;
  height: auto;
  object-fit: contain;
}

.photo-lightbox-close {
  position: fixed;
  top: clamp(.8rem, 3vw, 1.4rem);
  right: clamp(.8rem, 3vw, 1.4rem);
  z-index: 31;
  display: grid;
  place-items: center;
  width: 2.65rem;
  height: 2.65rem;
  border: 1px solid rgba(255, 212, 138, .28);
  border-radius: 50%;
  cursor: pointer;
  color: #f8e0b5;
  font-size: 1.45rem;
  line-height: 1;
  background: rgba(5, 3, 2, .55);
  backdrop-filter: blur(10px);
}

.photo-add span {
  border: 1px solid rgba(33, 22, 18, .18);
  border-radius: 999px;
  padding: .25rem .45rem;
  color: rgba(33, 22, 18, .68);
  font-family: var(--sans);
  font-size: .46rem;
  font-weight: 950;
  letter-spacing: .12em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, .24);
}

.photo-add input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.cover-rule {
  position: absolute;
  left: 13%;
  right: 13%;
  top: 19%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 212, 138, .62), transparent);
  box-shadow: 0 0 18px rgba(255, 212, 138, .45);
}

.sigil {
  position: absolute;
  bottom: 15%;
  display: grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  border: 1px solid rgba(255, 212, 138, .35);
  border-radius: 50%;
  color: rgba(255, 212, 138, .64);
  font-size: 2rem;
}

.spread {
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .15rem;
  padding: .4rem;
  background: linear-gradient(90deg, #22150e, #6c553a 50%, #21140d);
  box-shadow: 0 1.8rem 5rem rgba(0, 0, 0, .64);
}

.paper {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 100%;
  overflow: hidden;
  padding: clamp(1.3rem, 3vw, 2.5rem);
  color: var(--paper-ink);
  background:
    radial-gradient(circle at 28% 16%, rgba(255, 247, 212, .68), transparent 11rem),
    linear-gradient(95deg, rgba(67, 37, 18, .22), transparent 14%, transparent 84%, rgba(67, 37, 18, .16)),
    repeating-linear-gradient(0deg, rgba(38, 22, 12, .035) 0 1px, transparent 1px 7px),
    linear-gradient(145deg, #e6d1a5, var(--paper) 52%, #a98555);
}

.paper::before {
  position: absolute;
  inset: 1rem;
  content: "";
  border: 1px solid rgba(33, 22, 18, .18);
  pointer-events: none;
}

.paper::after {
  position: absolute;
  inset: 0;
  opacity: .23;
  content: "";
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='p'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.55' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23p)'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  pointer-events: none;
}

.paper > * {
  position: relative;
  z-index: 1;
}

.paper h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4.4vw, 4rem);
  font-weight: 500;
  line-height: .9;
  letter-spacing: -.045em;
}

.paper p {
  color: rgba(33, 22, 18, .72);
  font-size: 1.05rem;
  line-height: 1.58;
}

.left-page {
  border-radius: .25rem .08rem .08rem .25rem;
}

.right-page {
  border-radius: .08rem .25rem .25rem .08rem;
}

dl {
  display: grid;
  gap: .75rem;
  margin: 0;
}

dl div {
  display: grid;
  grid-template-columns: 4.6rem 1fr;
  gap: .7rem;
  padding-top: .7rem;
  border-top: 1px solid rgba(33, 22, 18, .16);
}

dt {
  color: rgba(33, 22, 18, .5);
  font-family: var(--sans);
  font-size: .66rem;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
}

dd {
  margin: 0;
  color: rgba(33, 22, 18, .88);
  font-weight: 700;
}

.seal {
  align-self: flex-start;
  display: grid;
  place-items: center;
  width: 5.3rem;
  height: 5.3rem;
  margin-top: 1.3rem;
  border-radius: 50%;
  color: #290d0f;
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 950;
  letter-spacing: .14em;
  text-transform: uppercase;
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, .28), transparent 1.2rem),
    linear-gradient(145deg, #b4212c, #5f1118);
  box-shadow: inset 0 0 0 .35rem rgba(60, 10, 13, .18), 0 .7rem 1.4rem rgba(74, 11, 15, .36);
}

.book-controls {
  position: absolute;
  bottom: 0;
  left: 50%;
  display: flex;
  gap: .7rem;
  transform: translate(-50%, 120%);
}

.book-controls button {
  min-height: 2.55rem;
  padding: .65rem .95rem;
}

.dynamic-hint {
  position: absolute;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 4;
  display: grid;
  gap: .3rem;
  max-width: 25rem;
  padding: .9rem 1rem;
  border: 1px solid rgba(255, 212, 138, .17);
  color: var(--muted);
  font-family: var(--sans);
  font-size: .82rem;
  background: rgba(5, 3, 2, .66);
  backdrop-filter: blur(18px);
}

.dynamic-hint strong {
  color: #f7dfb7;
}

.dynamic-hint code {
  color: var(--candle);
}

.mobile-step-button {
  display: none;
}

.details-section {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(18rem, .9fr) minmax(18rem, .72fr);
  gap: clamp(1.2rem, 3vw, 2rem);
  align-items: center;
  padding: clamp(1.25rem, 4vw, 4rem);
  color: #161616;
  font-family: var(--sans);
  background:
    radial-gradient(circle at 10% 0%, rgba(122, 23, 32, .09), transparent 22rem),
    linear-gradient(135deg, #f7f2ea, #e5dac9);
}

body[data-version="customer"] .details-section {
  grid-template-columns: minmax(20rem, 1fr);
}

.details-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.4rem, 3vw, 2.4rem);
  border: 1px solid rgba(22, 22, 22, .1);
  border-radius: 1.3rem;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 1.5rem 4.5rem rgba(45, 27, 18, .12);
  backdrop-filter: blur(22px);
}

.details-card .mode-label {
  color: rgba(122, 23, 32, .72);
}

.details-card h2 {
  margin-bottom: 1rem;
  color: #151313;
  font-size: clamp(2.5rem, 6vw, 5.6rem);
  line-height: .88;
  letter-spacing: -.075em;
}

.summary-copy {
  max-width: 54rem;
  color: rgba(22, 22, 22, .68);
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.68;
}

.plain-details,
.detail-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.4rem;
}

.plain-details {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.plain-details div {
  display: grid;
  gap: .3rem;
  padding: 1rem;
  border: 1px solid rgba(22, 22, 22, .08);
  border-radius: .9rem;
  background: rgba(255, 255, 255, .58);
}

.plain-details dt,
.details-card label span {
  color: rgba(22, 22, 22, .52);
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.plain-details dd {
  color: #151313;
  font-size: 1.02rem;
  font-weight: 800;
}

.detail-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.details-card label {
  display: grid;
  gap: .45rem;
}

.details-card label.wide {
  grid-column: 1 / -1;
}

.details-card input,
.details-card select,
.details-card textarea {
  width: 100%;
  min-height: 3.25rem;
  cursor: text;
  color: #171313;
  font-size: 1rem;
  letter-spacing: normal;
  text-transform: none;
  background: rgba(255, 255, 255, .75);
  box-shadow: none;
}

.details-card select {
  cursor: pointer;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(22, 22, 22, .62) 50%),
    linear-gradient(135deg, rgba(22, 22, 22, .62) 50%, transparent 50%);
  background-position:
    calc(100% - 1.05rem) 50%,
    calc(100% - .72rem) 50%;
  background-size: .36rem .36rem, .36rem .36rem;
  background-repeat: no-repeat;
}

.details-card textarea {
  min-height: 7.8rem;
  resize: vertical;
  line-height: 1.5;
}

.details-card input:focus,
.details-card textarea:focus {
  border-color: rgba(122, 23, 32, .46);
  outline: 0;
  box-shadow: 0 0 0 .25rem rgba(122, 23, 32, .08);
}

.details-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 1.4rem;
}

.details-section .button {
  color: #23140d;
  border-color: rgba(22, 22, 22, .14);
  background: rgba(255, 255, 255, .7);
  box-shadow: none;
}

.details-section .button-primary {
  color: #fff6e4;
  border-color: rgba(122, 23, 32, .64);
  background: linear-gradient(135deg, #7a1720, #1f1212);
}

.rsvp-form {
  align-self: stretch;
  display: grid;
  align-content: center;
  gap: 1rem;
}

.rsvp-form h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.form-message,
.link-preview {
  min-height: 1.3rem;
  margin: .9rem 0 0;
  color: rgba(22, 22, 22, .58);
  font-size: .9rem;
  line-height: 1.45;
  word-break: break-word;
}

body[data-version="recipient"] .dynamic-hint {
  max-width: 21rem;
}

@media (max-width: 980px) {
  .invitation-shell {
    grid-template-columns: 1fr;
    padding-bottom: 7rem;
  }

  .details-section {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .book-panel {
    min-height: auto;
    padding-bottom: 3.5rem;
  }

  .book-wrap {
    width: min(94vw, 42rem);
  }

  .dynamic-hint {
    position: relative;
    right: auto;
    bottom: auto;
    max-width: none;
  }
}

@media (max-width: 760px) {
  html {
    scroll-snap-type: none;
  }

  body {
    overflow-x: hidden;
  }

  .invitation-shell {
    min-height: 100svh;
    display: block;
    padding: clamp(1rem, 5vw, 1.4rem);
    overflow: hidden;
  }

  .copy-panel,
  .book-panel,
  .book-wrap,
  .book,
  .cover,
  .spread,
  .paper {
    transition:
      opacity .42s ease,
      transform .52s cubic-bezier(.2, .8, .2, 1),
      filter .42s ease;
  }

  .copy-panel {
    position: relative;
    z-index: 4;
    max-width: 92vw;
    padding-top: min(8svh, 4rem);
  }

  h1 {
    font-size: clamp(3.55rem, 21vw, 6.6rem);
  }

  h1 small {
    max-width: 18rem;
  }

  .intro {
    max-width: 20rem;
    font-size: 1rem;
    line-height: 1.55;
  }

  .actions {
    gap: .55rem;
    margin-top: 1.2rem;
  }

  .button,
  .book-controls button {
    min-height: 2.75rem;
    padding: .72rem .9rem;
    font-size: .68rem;
  }

  .book-panel {
    position: fixed;
    inset: 0;
    z-index: 3;
    min-height: 100svh;
    padding: 0;
    pointer-events: none;
    perspective: 1500px;
  }

  .book-wrap {
    position: absolute;
    right: -8vw;
    bottom: 1svh;
    width: min(86vw, 26rem);
    aspect-ratio: 1.34;
    pointer-events: auto;
  }

  .book-controls,
  .dynamic-hint {
    display: none;
  }

  .book {
    transform: rotateX(10deg) rotateZ(-1deg);
  }

  .cover {
    transform-origin: left center;
  }

  .cover-front,
  .cover-inside {
    transform-origin: left center;
    transition:
      opacity .42s ease,
      transform .72s cubic-bezier(.2, .8, .2, 1),
      filter .42s ease;
  }

  .spread {
    grid-template-columns: 1fr 1fr;
  }

  .left-page,
  .right-page {
    display: flex;
  }

  .paper {
    padding: clamp(1rem, 5vw, 1.45rem);
  }

  .paper h2 {
    font-size: clamp(2rem, 11vw, 3.25rem);
  }

  .seal {
    width: 4.4rem;
    height: 4.4rem;
    font-size: .62rem;
  }

  .mobile-step-button {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 9;
    display: grid;
    place-items: center;
    width: 3rem;
    height: 3rem;
    border: 1px solid rgba(255, 212, 138, .28);
    border-radius: 50%;
    cursor: pointer;
    color: rgba(255, 226, 176, .78);
    background: rgba(5, 3, 2, .2);
    backdrop-filter: blur(10px);
    transition: opacity .25s ease, transform .25s ease;
  }

  .mobile-step-button::before {
    width: .72rem;
    height: .72rem;
    content: "";
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: translateY(-.12rem) rotate(45deg);
  }

  .mobile-step-button:hover {
    transform: translateY(-2px);
  }

  body[data-mobile-stage="0"] .book-wrap {
    transform: translate(18%, 18%) scale(.82) rotate(-7deg);
    filter: brightness(.88);
  }

  body[data-mobile-stage="0"] .book-panel {
    opacity: .9;
  }

  body[data-mobile-stage="1"] .copy-panel,
  body[data-mobile-stage="2"] .copy-panel,
  body[data-mobile-stage="3"] .copy-panel,
  body[data-mobile-stage="4"] .copy-panel {
    opacity: 0;
    transform: translateY(-1rem);
    pointer-events: none;
  }

  body[data-mobile-stage="1"] .book-wrap {
    top: 50%;
    right: auto;
    bottom: auto;
    left: 50%;
    width: min(88vw, 24rem);
    aspect-ratio: .72;
    transform: translate(-50%, -50%);
  }

  body[data-mobile-stage="2"] .book-wrap {
    top: 50%;
    right: auto;
    bottom: auto;
    left: 50%;
    width: min(88vw, 24rem);
    aspect-ratio: .72;
    transform: translate(-50%, -50%);
  }

  body[data-mobile-stage="1"] .book,
  body[data-mobile-stage="2"] .book {
    transform: rotateX(4deg) rotateZ(-1deg);
  }

  body[data-mobile-stage="1"] .cover-front {
    opacity: 1;
    transform: rotateY(0deg) translateZ(2px);
  }

  body[data-mobile-stage="1"] .cover-inside {
    opacity: 0;
    transform: rotateY(82deg) translateX(8%) translateZ(2px);
  }

  body[data-mobile-stage="2"] .book {
    transform: rotateX(0deg) rotateZ(0deg);
  }

  body[data-mobile-stage="2"] .cover {
    opacity: 1;
    pointer-events: auto;
    transform: none !important;
    filter: none !important;
  }

  body[data-mobile-stage="2"] .cover-front {
    opacity: 0;
    pointer-events: none;
    transform: rotateY(-112deg) translateX(-8%) translateZ(3px);
    filter: brightness(.72);
  }

  body[data-mobile-stage="2"] .cover-inside {
    opacity: 1;
    overflow: visible;
    transform: rotateY(0deg) translateZ(4px) !important;
    pointer-events: auto;
  }

  body[data-version="recipient"][data-mobile-stage="2"] .photo-placeholder,
  body[data-version="recipient"][data-mobile-stage="2"] .photo-preview {
    cursor: zoom-in;
    touch-action: manipulation;
  }

  body[data-mobile-stage="2"] .spread {
    opacity: 0;
    pointer-events: none;
  }

  body[data-mobile-stage="3"] .book-wrap,
  body[data-mobile-stage="4"] .book-wrap {
    top: 50%;
    right: auto;
    bottom: auto;
    left: 50%;
    width: min(86vw, 24rem);
    aspect-ratio: .72;
    transform: translate(-50%, -50%);
  }

  body[data-mobile-stage="3"] .book,
  body[data-mobile-stage="4"] .book {
    transform: rotateX(0deg) rotateZ(0deg);
  }

  body[data-mobile-stage="3"] .cover {
    z-index: 5;
    opacity: 0;
    visibility: visible;
    pointer-events: none;
    transform: rotateY(-112deg) translateX(-8%);
    transform-origin: left center;
  }

  body[data-mobile-stage="4"] .cover {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: rotateY(-112deg) translateX(-8%);
    transform-origin: left center;
  }

  body[data-mobile-stage="3"] .cover-inside {
    opacity: 1;
    visibility: visible;
    transform: none !important;
  }

  body[data-mobile-stage="4"] .cover-inside,
  body[data-mobile-stage="5"] .cover-inside {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  body[data-mobile-stage="3"] .spread,
  body[data-mobile-stage="4"] .spread {
    display: block;
    opacity: 1;
    padding: .35rem;
    perspective: 1300px;
    overflow: visible;
  }

  body[data-mobile-stage="3"] .paper,
  body[data-mobile-stage="4"] .paper {
    position: absolute;
    inset: .35rem;
    display: flex;
    width: auto;
    min-height: auto;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    transition:
      opacity .5s ease,
      transform .72s cubic-bezier(.2, .8, .2, 1),
      filter .5s ease;
  }

  body[data-mobile-stage="3"] .left-page,
  body[data-mobile-stage="4"] .right-page {
    opacity: 1;
    pointer-events: auto;
    filter: brightness(1);
    transform: rotateY(0deg) translateZ(1px);
  }

  body[data-mobile-stage="3"] .left-page {
    transform-origin: left center;
    z-index: 4;
  }

  body[data-mobile-stage="4"] .right-page {
    transform-origin: left center;
    z-index: 1;
  }

  body[data-mobile-stage="3"] .right-page {
    opacity: 1;
    pointer-events: none;
    filter: brightness(1);
    transform: rotateY(0deg) translateZ(0);
    transform-origin: left center;
    z-index: 1;
  }

  body[data-mobile-stage="4"] .left-page {
    opacity: 0;
    visibility: visible;
    pointer-events: none;
    filter: brightness(.72);
    transform: rotateY(-112deg) translateX(-8%);
    transform-origin: left center;
    z-index: 5;
  }

  body[data-mobile-stage="5"] .mobile-step-button {
    opacity: 0;
    pointer-events: none;
  }

  body[data-mobile-stage="5"] .book-panel,
  body[data-mobile-stage="5"] .copy-panel {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .details-section {
    min-height: auto;
    padding: 1rem;
  }
}

@media (max-width: 640px) {
  h1 {
    font-size: clamp(3.35rem, 18vw, 5.2rem);
  }

  .book-wrap {
    aspect-ratio: .72;
  }

  .detail-grid,
  .plain-details {
    grid-template-columns: 1fr;
  }

  .spread {
    grid-template-columns: 1fr;
  }

  .left-page {
    display: none;
  }

  body[data-mobile-stage="0"] .book-wrap,
  body[data-mobile-stage="1"] .book-wrap,
  body[data-mobile-stage="2"] .book-wrap {
    aspect-ratio: 1.34;
  }

  body[data-mobile-stage="1"] .book-wrap,
  body[data-mobile-stage="2"] .book-wrap {
    aspect-ratio: .72;
  }

  body[data-mobile-stage="3"] .book-wrap,
  body[data-mobile-stage="4"] .book-wrap {
    aspect-ratio: .72;
  }

  body[data-mobile-stage="3"] .left-page {
    display: flex;
  }

  body[data-mobile-stage="4"] .left-page {
    display: flex;
  }

  body[data-mobile-stage="3"] .right-page,
  body[data-mobile-stage="4"] .right-page {
    display: flex;
  }

  dl div {
    grid-template-columns: 1fr;
    gap: .2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}