@font-face {
  font-family: "Moon Invite";
  src: url("/assets/font/Moon2.0-Regular.otf") format("opentype");
  font-display: swap;
}

@font-face {
  font-family: "Fraunces Invite";
  src: url("/assets/font/Fraunces-VariableFont_SOFT,WONK,opsz,wght.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "CL Handwriting";
  src: url("/assets/font/CLHandwriting.otf") format("opentype");
  font-display: swap;
}

:root {
  color-scheme: dark;
  --navy: #101f42;
  --midnight: #08142d;
  --paper: #fffaf4;
  --paper-soft: #f8ecdf;
  --pink: #e6a7c2;
  --pink-line: #d88aac;
  --ink: #172452;
  --muted: #6f6878;
  --gold: #d8b771;
  --shadow: rgba(3, 8, 20, 0.45);
  --nettuno-paper: url("/assets/image/nettuno-paper.png");
  font-family: "Fraunces Invite", Georgia, serif;
}

* { box-sizing: border-box; }

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

html, body {
  min-height: 100%;
  margin: 0;
  background:
    radial-gradient(circle at 50% 10%, rgba(54, 92, 156, 0.75), transparent 42%),
    linear-gradient(180deg, #102a5b, #08142d 50%, #050b19);
  color: var(--paper);
}

html {
  overflow-y: auto;
  scrollbar-color: rgba(255, 250, 244, 0.28) transparent;
  scrollbar-gutter: stable;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 250, 244, 0.22);
  border-radius: 999px;
}

body {
  position: relative;
  min-height: 100%;
  padding: max(14px, env(safe-area-inset-top)) 12px max(16px, env(safe-area-inset-bottom));
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 9% 13%, rgba(255, 255, 255, 0.9) 0 1px, transparent 1.8px),
    radial-gradient(circle at 24% 31%, rgba(255, 250, 244, 0.74) 0 1px, transparent 1.7px),
    radial-gradient(circle at 74% 18%, rgba(239, 189, 208, 0.72) 0 1px, transparent 1.8px),
    radial-gradient(circle at 88% 41%, rgba(255, 255, 255, 0.82) 0 1px, transparent 1.8px),
    radial-gradient(circle at 42% 72%, rgba(255, 250, 244, 0.88) 0 1.2px, transparent 2px),
    radial-gradient(circle at 63% 88%, rgba(255, 255, 255, 0.68) 0 1px, transparent 1.7px);
  background-size: 180px 220px, 230px 260px, 260px 300px, 310px 340px, 190px 280px, 280px 210px;
  animation: twinkle 5.8s ease-in-out infinite alternate;
}

body::after {
  content: "";
  position: fixed;
  left: 16%;
  top: 18%;
  z-index: 0;
  width: 190px;
  height: 2px;
  pointer-events: none;
  opacity: 0;
  transform: rotate(-18deg) translate3d(0, 0, 0);
  background: linear-gradient(90deg, transparent, rgba(255, 250, 244, 0.95), rgba(239, 189, 208, 0.36), transparent);
  filter: blur(0.2px);
  animation: meteor 16s linear infinite;
}

.stage {
  position: relative;
  z-index: 1;
  width: min(100%, 460px);
  min-height: calc(100svh - 28px);
  margin: 0 auto;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.stage.is-open {
  min-height: auto;
  overflow: visible;
  padding-top: clamp(70px, 18vh, 150px);
  padding-bottom: 132px;
}

.stage::before {
  display: none;
}

.invite-wrap {
  position: absolute;
  left: 50%;
  top: clamp(92px, 18vh, 150px);
  width: min(94vw, 560px);
  z-index: 8;
  opacity: 0;
  transform: translateX(-50%) translateY(96px) scale(0.64);
  transform-origin: 50% 0%;
  perspective: 1800px;
  pointer-events: none;
}

.stage.is-open .invite-wrap {
  position: relative;
  left: auto;
  top: auto;
  margin: 0 auto;
  opacity: 1;
  transform: none;
  animation: none;
  pointer-events: auto;
}

.stage.is-resetting .invite-wrap {
  position: absolute !important;
  left: 50% !important;
  top: clamp(92px, 18vh, 150px) !important;
  margin: 0 !important;
  opacity: 0 !important;
  transform: translateX(-50%) translateY(96px) scale(0.64) !important;
  pointer-events: none !important;
}

.stage.is-opening .invite {
  pointer-events: none;
}

.stage.is-lifted .invite-wrap {
  z-index: 14;
}

.invite {
  position: relative;
  display: block;
  transform-origin: 50% 0%;
  opacity: 1;
  transform: none;
  cursor: pointer;
}

.invite.is-turning {
  pointer-events: none;
}

.stage.is-open .invite {
  animation: none;
}

.side {
  display: block;
  transition: none;
  backface-visibility: hidden;
  transform-style: flat;
  visibility: visible;
}

.side.back {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: none;
  visibility: hidden;
}

.invite.show-back .side.front {
  opacity: 0;
  transform: none;
  visibility: hidden;
}

.invite.show-back .side.back {
  opacity: 1;
  transform: none;
  visibility: visible;
}

.panel {
  position: relative;
  width: 100%;
  aspect-ratio: 148 / 105;
  min-height: 0;
  padding: clamp(16px, 4.8vw, 28px);
  background: var(--paper);
  color: var(--ink);
  border: 0;
  clip-path: none;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.18);
  transform-origin: top center;
  opacity: 0;
  transform: rotateX(-88deg);
  overflow: hidden;
}

.panel + .panel {
  margin-top: -1.5px;
}

.panel:not(.hero) {
  background:
    linear-gradient(rgba(255, 250, 244, 0.9), rgba(255, 250, 244, 0.9)),
    var(--nettuno-paper) center / 230px auto repeat,
    var(--paper);
  background-blend-mode: normal, multiply, normal;
}

.stage.is-open .side.front .panel:first-child {
  opacity: 1;
  transform: rotateX(0deg);
  animation: coverSettle 1250ms 900ms cubic-bezier(.18, .78, .2, 1) both;
}

.stage.is-open .side.back .panel:first-child {
  opacity: 1;
  transform: rotateX(0deg);
}

.stage.is-open .panel:not(:first-child) {
  animation: unfold 900ms cubic-bezier(.18, .74, .22, 1) both;
}

.stage.is-open .panel:nth-child(2) { animation-delay: 2320ms; }
.stage.is-open .panel:nth-child(3) { animation-delay: 2820ms; }
.stage.is-open .panel:nth-child(4) { animation-delay: 3320ms; }

.panel::before,
.panel::after {
  content: "";
  position: absolute;
  width: 112px;
  height: 74px;
  background:
    radial-gradient(circle at 24px 32px, rgba(230, 167, 194, 0.55) 0 16px, transparent 17px),
    radial-gradient(circle at 58px 26px, rgba(246, 210, 221, 0.75) 0 18px, transparent 19px),
    radial-gradient(circle at 78px 44px, rgba(255, 244, 248, 0.9) 0 16px, transparent 17px);
  opacity: 0.82;
  pointer-events: none;
}

.panel::before { left: -24px; top: -20px; transform: rotate(-12deg); }
.panel::after { right: -28px; bottom: -18px; transform: rotate(14deg); }

.hero {
  padding: 0;
  background:
    url("/assets/image/cover-panel.png") center / cover no-repeat;
  color: var(--paper);
}

.hero::before,
.hero::after {
  display: none;
}

h1, h2, p { margin: 0; }

body.invite-locked {
  overflow: hidden;
}

body.invite-locked .stage,
body.invite-locked .actions,
body.invite-locked .hint,
body.invite-locked .scroll-shortcuts {
  display: none;
}

.password-gate {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 50% 10%, rgba(54, 92, 156, 0.82), transparent 42%),
    linear-gradient(180deg, #102a5b, #08142d 54%, #050b19);
}

.password-gate[hidden] {
  display: none;
}

.password-card {
  width: min(92vw, 380px);
  padding: 24px 26px 18px;
  border: 1px solid rgba(255, 250, 244, 0.2);
  border-radius: 8px;
  background:
    linear-gradient(rgba(255, 250, 244, 0.92), rgba(255, 250, 244, 0.92)),
    var(--nettuno-paper) center / 240px auto repeat,
    var(--paper);
  color: var(--ink);
  text-align: center;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

.password-card h1 {
  margin: 0 0 8px;
  font: 700 20px/1.15 "Moon Invite", "Trebuchet MS", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.password-card p {
  margin: 0 0 10px;
  font: 14px/1.35 "Fraunces Invite", Georgia, serif;
  color: var(--muted);
}

.password-card .password-hint {
  margin-top: -4px;
  font-size: 12px;
  color: rgba(23, 36, 82, 0.62);
}

.password-form {
  display: grid;
  gap: 10px;
}

.password-form input {
  width: 100%;
  border: 1px solid rgba(23, 36, 82, 0.24);
  border-radius: 999px;
  padding: 13px 16px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.76);
  font: 600 16px/1 system-ui, sans-serif;
  text-align: center;
}

.password-form input:focus {
  outline: 3px solid rgba(230, 167, 194, 0.58);
  outline-offset: 2px;
}

.password-form button {
  border: 0;
  border-radius: 999px;
  padding: 13px 16px;
  color: var(--paper);
  background: var(--ink);
  font: 800 14px/1.1 system-ui, sans-serif;
  cursor: pointer;
}

.password-form button:disabled,
.password-form input:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.password-error {
  min-height: 18px;
  margin: 0;
  color: #b84d73;
  font: 700 13px/1.35 system-ui, sans-serif;
  white-space: pre-line;
}

.password-error:empty {
  display: none;
}

.guest-confirmation[hidden],
.password-entry[hidden] {
  display: none;
}

.guest-confirmation h1 {
  margin-bottom: 18px;
  letter-spacing: 0;
  text-transform: none;
}

.confirmation-actions {
  display: grid;
  gap: 10px;
}

.confirmation-actions button,
.confirmation-actions a {
  border: 0;
  border-radius: 999px;
  padding: 13px 16px;
  font: 800 14px/1.1 system-ui, sans-serif;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.confirmation-actions button {
  color: var(--paper);
  background: var(--ink);
}

.confirmation-actions a {
  color: var(--ink);
  background: rgba(23, 36, 82, 0.08);
  border: 1px solid rgba(23, 36, 82, 0.18);
}

.panel-title {
  font: 700 clamp(15px, 4.2vw, 22px)/1.05 "Moon Invite", "Trebuchet MS", sans-serif;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink);
  text-align: center;
}

.main-invite {
  display: grid;
  align-content: center;
  gap: clamp(7px, 2vw, 14px);
  text-align: center;
}

.small {
  font: 600 clamp(9px, 2.4vw, 13px)/1.35 "Moon Invite", "Trebuchet MS", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.invite-copy {
  font: clamp(9px, 2.45vw, 15px)/1.35 "Fraunces Invite", Georgia, serif;
  color: var(--muted);
}

.invite-copy strong {
  color: var(--ink);
  font-weight: 700;
}

.names {
  font: 600 clamp(16px, 4.7vw, 32px)/1.12 "Moon Invite", "Trebuchet MS", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
}

.name-svg {
  display: block;
  width: min(92%, 260px);
  max-height: 118px;
  margin: 0 auto;
  object-fit: contain;
}

.date {
  font: 700 clamp(10px, 2.6vw, 15px)/1.25 "Fraunces Invite", Georgia, serif;
  color: var(--ink);
}

.rule {
  width: 64%;
  height: 2px;
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, var(--pink-line), transparent);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(8px, 2.2vw, 14px);
  font: clamp(8px, 2.25vw, 13px)/1.35 "Fraunces Invite", Georgia, serif;
  color: var(--muted);
}

.rsvp {
  display: grid;
  align-content: center;
  gap: clamp(8px, 2vw, 14px);
}

.qr {
  float: left;
  width: 62px;
  height: 62px;
  margin: 2px 14px 8px 0;
  background:
    linear-gradient(90deg, #b84d73 50%, transparent 0) 0 0/12px 12px,
    linear-gradient(#b84d73 50%, transparent 0) 0 0/12px 12px,
    #fff;
  border: 4px solid #fff;
  outline: 1px solid #e5a8bf;
}

.copy {
  font: clamp(8px, 2.15vw, 13px)/1.32 "Fraunces Invite", Georgia, serif;
  color: var(--muted);
}

.qr-image {
  width: clamp(76px, 22vw, 116px);
  height: clamp(76px, 22vw, 116px);
  object-fit: contain;
  justify-self: center;
}

.details {
  display: grid;
  align-content: center;
  gap: clamp(5px, 1.5vw, 11px);
  text-align: center;
}

.details p {
  font: clamp(8px, 2.08vw, 13px)/1.3 "Fraunces Invite", Georgia, serif;
  color: var(--muted);
}

.parking-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 8px;
  text-align: left;
}

.parking-grid p {
  font-size: clamp(7.5px, 2vw, 12px);
}

.envelope,
.envelope-pocket {
  position: absolute;
  left: 50%;
  top: clamp(70px, 18vh, 150px);
  width: min(82%, 430px);
  aspect-ratio: 148 / 105;
  height: auto;
  opacity: 0;
  transform: translateX(-50%) rotate(-1deg);
  transform-style: preserve-3d;
  perspective: 900px;
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.26));
  pointer-events: none;
}

.envelope {
  z-index: 6;
}

.envelope-pocket {
  z-index: 12;
  filter: none;
}

.stage.is-open .envelope,
.stage.is-open .envelope-pocket {
  opacity: 1;
  animation: none;
}

.env-back,
.env-front,
.env-flap {
  position: absolute;
  inset: 0;
}

.env-back {
  z-index: 1;
  top: 8%;
  height: 82%;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.58), transparent 44%),
    linear-gradient(90deg, rgba(155, 115, 86, 0.06), transparent 30%, rgba(155, 115, 86, 0.05)),
    #fff0e3;
  border: 1px solid rgba(111, 72, 84, 0.12);
}

.env-flap {
  z-index: 2;
  left: -1px;
  right: -1px;
  top: 7.5%;
  height: 64%;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.52), transparent 54%),
    linear-gradient(90deg, rgba(155, 115, 86, 0.06), transparent 34%, rgba(155, 115, 86, 0.04)),
    #fff2e6;
  transform-origin: 50% 0%;
  transform: rotateX(0deg) translateY(0);
}

.stage.is-open .env-flap {
  animation: flapOpen 880ms 180ms cubic-bezier(.2, .72, .25, 1) both;
}

.env-front {
  z-index: 4;
  left: -1px;
  right: -1px;
  top: 33.5%;
  height: 59%;
  clip-path: polygon(0 0, 50% 57%, 100% 0, 100% 100%, 0 100%);
  background:
    linear-gradient(180deg, rgba(255, 248, 241, 0.96), rgba(255, 232, 211, 0.96)),
    linear-gradient(90deg, rgba(155, 115, 86, 0.05), transparent 32%, rgba(155, 115, 86, 0.04)),
    #fff0e3;
  border-radius: 0 0 18px 18px;
  border: 1px solid rgba(111, 72, 84, 0.11);
  border-top: 0;
}

.env-front::before,
.env-front::after {
  content: "";
  position: absolute;
  top: 0;
  width: 50%;
  height: 100%;
  background: rgba(255, 255, 255, 0.14);
}

.env-front::before {
  left: 0;
  clip-path: polygon(0 0, 100% 58%, 0 100%);
}

.env-front::after {
  right: 0;
  clip-path: polygon(100% 0, 0 58%, 100% 100%);
}

.seal {
  position: absolute;
  left: 50%;
  top: 53%;
  z-index: 5;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  transform: translateX(-50%);
  display: grid;
  place-items: center;
  color: #fffaf4;
  background:
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.24), transparent 34%),
    #b84d73;
  font: 700 13px/1 "Moon Invite", sans-serif;
  letter-spacing: 0.08em;
  box-shadow: 0 6px 16px rgba(83, 28, 50, 0.3);
}

.actions {
  position: fixed;
  left: 50%;
  top: max(14px, env(safe-area-inset-top));
  z-index: 20;
  display: flex;
  gap: 10px;
  width: min(88vw, 410px);
  transform: translateX(-50%) translateY(-14px);
  opacity: 0;
  pointer-events: none;
}

.stage.is-open ~ .actions {
  animation: actionsIn 600ms 4750ms ease both;
}

.button,
.replay {
  border: 1px solid rgba(239, 189, 208, 0.72);
  box-shadow: none;
}

.button {
  flex: 1;
  border-radius: 999px;
  padding: 13px 16px;
  color: var(--midnight);
  background: #fff6ec;
  font: 800 14px/1.1 system-ui, sans-serif;
  text-align: center;
  text-decoration: none;
}

button.button {
  cursor: pointer;
}

.replay {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  color: var(--paper);
  background: var(--midnight);
  cursor: pointer;
  font: 700 18px/1 system-ui, sans-serif;
}

.hint {
  position: fixed;
  left: 50%;
  top: max(72px, calc(env(safe-area-inset-top) + 72px));
  z-index: 18;
  transform: translateX(-50%);
  width: min(88vw, 410px);
  color: rgba(255, 250, 244, 0.82);
  font: 12px/1.35 system-ui, sans-serif;
  text-align: center;
  opacity: 0;
}

.stage.is-open ~ .hint {
  animation: actionsIn 600ms 4750ms ease both;
}

.scroll-shortcuts {
  position: fixed;
  right: max(14px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 22;
  display: grid;
  gap: 10px;
}

.scroll-jump {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(239, 189, 208, 0.72);
  border-radius: 50%;
  color: var(--paper);
  background: var(--midnight);
  cursor: pointer;
  font: 800 20px/1 system-ui, sans-serif;
}

body.show-scroll-top .scroll-top,
body.show-scroll-bottom .scroll-bottom {
  display: block;
}

.intro {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: grid;
  justify-items: center;
  align-content: start;
  padding: 28px;
  padding-top: clamp(64px, 17vh, 136px);
  background: transparent;
  cursor: pointer;
  transition: opacity 420ms ease, transform 420ms ease, visibility 420ms ease;
}

.stage.is-open .intro {
  opacity: 0;
  transform: translateY(-18px) scale(0.98);
  visibility: hidden;
  pointer-events: none;
}

.intro-envelope {
  position: relative;
  width: min(90%, 430px);
  aspect-ratio: 148 / 105;
  filter: drop-shadow(0 24px 42px rgba(0, 0, 0, 0.34));
  animation: waitingShake 850ms 5s ease-in-out infinite;
  transform-style: preserve-3d;
  perspective: 1200px;
}

.intro-envelope.is-flipping {
  animation: none;
}

.intro-envelope.is-flipped {
  animation: none;
}

.intro-side {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  transform-style: preserve-3d;
}

.intro-side.front-side {
  opacity: 1;
  transform: rotateY(0deg);
}

.intro-side.back-side {
  opacity: 0;
  transform: rotateY(86deg);
}

.intro-envelope.is-flipping .front-side {
  animation: envelopeFrontOut 360ms cubic-bezier(.36, 0, .24, 1) both;
}

.intro-envelope.is-flipping .back-side {
  animation: envelopeBackIn 420ms 300ms cubic-bezier(.2, .72, .25, 1) both;
}

.intro-envelope.is-flipped .front-side {
  opacity: 0;
  transform: rotateY(-86deg);
}

.intro-envelope.is-flipped .back-side {
  opacity: 1;
  transform: rotateY(0deg);
}

.intro-back,
.intro-front,
.intro-flap {
  position: absolute;
  inset: 0;
}

.intro-envelope.address-side .front-side .intro-flap {
  display: none;
}

.intro-back {
  top: 8%;
  height: 82%;
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.58), transparent 44%),
    linear-gradient(90deg, rgba(155, 115, 86, 0.06), transparent 30%, rgba(155, 115, 86, 0.05)),
    #fff0e3;
  border: 1px solid rgba(111, 72, 84, 0.12);
}

.intro-flap {
  left: -1px;
  right: -1px;
  top: 7.5%;
  height: 64%;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.52), transparent 54%),
    linear-gradient(90deg, rgba(155, 115, 86, 0.06), transparent 34%, rgba(155, 115, 86, 0.04)),
    #fff2e6;
}

.intro-front {
  left: -1px;
  right: -1px;
  top: 33.5%;
  height: 59%;
  clip-path: polygon(0 0, 50% 57%, 100% 0, 100% 100%, 0 100%);
  background:
    linear-gradient(180deg, rgba(255, 248, 241, 0.96), rgba(255, 232, 211, 0.96)),
    linear-gradient(90deg, rgba(155, 115, 86, 0.05), transparent 32%, rgba(155, 115, 86, 0.04)),
    #fff0e3;
  border-radius: 0 0 20px 20px;
  border: 1px solid rgba(111, 72, 84, 0.11);
  border-top: 0;
}

.intro-envelope.address-side .front-side .intro-front {
  top: 8%;
  height: 82%;
  clip-path: none;
  border-radius: 20px;
  border: 1px solid rgba(111, 72, 84, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 248, 241, 0.98), rgba(255, 237, 220, 0.98)),
    linear-gradient(90deg, rgba(155, 115, 86, 0.04), transparent 32%, rgba(155, 115, 86, 0.035)),
    #fff2e8;
}

.intro-envelope.address-side .front-side .intro-front::before {
  content: "";
  position: absolute;
  left: 9%;
  right: 9%;
  top: 53%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(23, 36, 82, 0.16), transparent);
  box-shadow:
    0 18px 0 rgba(23, 36, 82, 0.09),
    0 36px 0 rgba(23, 36, 82, 0.07);
}

.intro-stamp {
  position: absolute;
  right: 9%;
  top: 17%;
  z-index: 5;
  width: 52px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: var(--pink-line);
  border: 1.5px solid rgba(216, 138, 172, 0.72);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.72), rgba(255, 238, 230, 0.72)),
    #fff8f1;
  font: 700 10px/1 "Moon Invite", "Trebuchet MS", sans-serif;
  letter-spacing: 0.08em;
}

.intro-return {
  position: absolute;
  left: 9%;
  top: 18%;
  z-index: 5;
  color: rgba(23, 36, 82, 0.48);
  font: 700 8px/1.35 "Moon Invite", "Trebuchet MS", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.intro-address {
  position: absolute;
  left: 50%;
  top: 43%;
  z-index: 4;
  width: min(78%, 280px);
  transform: translateX(-50%);
  display: grid;
  gap: 10px;
  justify-items: center;
  color: var(--ink);
  text-align: center;
}

.intro-side.back-side .intro-address,
.intro-side.back-side .intro-stamp,
.intro-side.back-side .intro-return {
  display: none;
}

.intro-label {
  font: 700 11px/1 "Moon Invite", "Trebuchet MS", sans-serif;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(23, 36, 82, 0.62);
}

.intro-name {
  font: 400 clamp(30px, 7.8vw, 46px)/1.08 "CL Handwriting", "Moon Invite", "Trebuchet MS", sans-serif;
  letter-spacing: 0;
  text-transform: none;
  font-variant-ligatures: common-ligatures discretionary-ligatures;
  font-feature-settings: "liga" 1, "dlig" 1, "calt" 1;
}

.intro-name-svg {
  display: block;
  width: 100%;
  max-height: 82px;
  object-fit: contain;
}

.intro-cta {
  margin-top: 24px;
  width: min(82%, 330px);
  color: rgba(255, 250, 244, 0.88);
  font: 600 14px/1.35 system-ui, sans-serif;
  text-align: center;
}

@keyframes rise {
  0%, 100% { opacity: 1; transform: none; }
}

@keyframes coverSettle {
  0%, 44% {
    opacity: 1;
    transform: rotateX(0deg);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  }
  100% {
    opacity: 1;
    transform: rotateX(0deg);
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.18);
  }
}

@keyframes unfold {
  0% { opacity: 0; transform: rotateX(-88deg); }
  18% { opacity: 1; }
  100% { opacity: 1; transform: rotateX(0deg); }
}

@keyframes flapOpen {
  0% { transform: rotateX(0deg) translateY(0); filter: brightness(1); }
  100% { transform: rotateX(-168deg) translateY(-8px); filter: brightness(0.96); }
}

@keyframes envelopeFade {
  0% { opacity: 1; transform: translateX(-50%) translateY(0) rotate(-1deg); }
  100% { opacity: 0; transform: translateX(-50%) translateY(54px) rotate(-1deg); }
}

@keyframes actionsIn {
  to { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
}

@keyframes waitingShake {
  0%, 100% { transform: rotate(0deg) translateY(0); }
  18% { transform: rotate(-1.3deg) translateY(-1px); }
  36% { transform: rotate(1.1deg) translateY(1px); }
  54% { transform: rotate(-0.8deg) translateY(0); }
  72% { transform: rotate(0.5deg) translateY(-1px); }
}

@keyframes twinkle {
  0% { opacity: 0.42; transform: translateY(0); }
  48% { opacity: 0.72; }
  100% { opacity: 0.52; transform: translateY(-8px); }
}

@keyframes meteor {
  0%, 72% {
    opacity: 0;
    transform: rotate(-18deg) translate3d(-16vw, -10vh, 0);
  }
  74% {
    opacity: 0.92;
  }
  82% {
    opacity: 0;
    transform: rotate(-18deg) translate3d(76vw, 34vh, 0);
  }
  100% {
    opacity: 0;
    transform: rotate(-18deg) translate3d(76vw, 34vh, 0);
  }
}

@keyframes envelopeFrontOut {
  0% { opacity: 1; transform: rotateY(0deg); }
  80% { opacity: 1; }
  100% { opacity: 0; transform: rotateY(-86deg); }
}

@keyframes envelopeBackIn {
  0% { opacity: 0; transform: rotateY(86deg); }
  18% { opacity: 1; }
  100% { opacity: 1; transform: rotateY(0deg); }
}

@media (min-width: 850px) {
  body {
    padding: 20px;
  }

  .stage {
    width: min(96vw, 720px);
    min-height: calc(100svh - 40px);
    border-radius: 0;
  }

  .stage.is-open {
    padding-top: clamp(74px, 17vh, 142px);
  }

  .invite-wrap {
    width: min(72vw, 620px);
    top: clamp(96px, 17vh, 142px);
  }

  .invite {
    transform-origin: 50% 100%;
  }

  .panel {
    padding: 28px;
  }

  .names {
    font-size: 24px;
  }

  .envelope {
    width: 430px;
    top: clamp(74px, 17vh, 142px);
  }

  @keyframes rise {
    0%, 100% { opacity: 1; transform: none; }
  }
}

@media (prefers-reduced-motion: reduce) {
  body::before,
  body::after {
    animation: none;
  }
}