:root {
  color-scheme: light;
  --paper: #f8e8ec;
  --ink: #501629;
  --muted: #805565;
  --rose: #e53d6c;
  --wine: #9e153e;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; margin: 0; overflow: hidden; }
body {
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--paper);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  touch-action: manipulation;
  transition: background .6s ease, color .6s ease;
}
.app {
  position: relative;
  isolation: isolate;
  display: grid;
  place-items: center;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  padding: max(4rem, calc(env(safe-area-inset-top) + 3rem)) max(1rem, env(safe-area-inset-right)) max(5rem, calc(env(safe-area-inset-bottom) + 4rem)) max(1rem, env(safe-area-inset-left));
  overflow: hidden;
}
.grain {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  opacity: .07;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}
.aurora {
  position: absolute;
  inset: -30%;
  z-index: -3;
  opacity: .6;
  background: conic-gradient(from 30deg, transparent, rgba(229,61,108,.13), transparent 32%, rgba(255,255,255,.7), transparent 60%);
  animation: drift 18s linear infinite;
}
.particles { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--rose);
  opacity: .22;
  animation: rise var(--speed) linear infinite;
}
.heart-scene {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  opacity: .2;
  pointer-events: none;
  transition: opacity .62s ease, transform .72s cubic-bezier(.4,0,.2,1);
}
.card {
  position: relative;
  width: min(calc(100vw - 3rem), 32rem);
  padding: clamp(1.35rem, 5vw, 2.2rem);
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-align: left;
  filter: drop-shadow(0 1px 0 rgba(255,255,255,.7));
  transform: perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));
  transition: opacity .62s ease, transform .72s cubic-bezier(.4,0,.2,1);
}
.curious { animation: curiousPulse 2.4s ease-in-out infinite; }
.curious small, .music-control small {
  font: 700 .58rem/1 system-ui, sans-serif;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 3.25rem;
  min-height: 3.25rem;
  border: 1px solid rgba(158,21,62,.18);
  border-radius: 50%;
  background: transparent;
  color: var(--wine);
  font: 1.4rem Georgia, serif;
  transform: rotate(-8deg);
  cursor: pointer;
}
.mark small {
  position: absolute;
  top: calc(100% + .3rem);
  left: 50%;
  color: var(--wine);
  font-style: normal;
  transform: translateX(-50%);
  opacity: .66;
}
.eyebrow {
  position: relative;
  display: flex;
  align-items: center;
  gap: .75rem;
  margin: 0 0 .65rem;
  color: var(--wine);
  font-size: .67rem;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.eyebrow::after { content: ""; width: 3rem; height: 1px; background: var(--rose); }
h1 {
  position: relative;
  max-width: 10ch;
  margin: 0 0 .8rem;
  font: italic 500 clamp(3rem,8vw,5rem)/.88 Georgia, "Times New Roman", serif;
  letter-spacing: -.045em;
}
.lede { position: relative; max-width: 28ch; margin: 0 0 1.25rem; color: #72505c; line-height: 1.55; }
.title-trigger {
  position: relative;
  display: block;
  width: 100%;
  margin: 0;
  padding: 0 0 .8rem;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}
.title-trigger h1 {
  margin-bottom: .3rem;
  background: linear-gradient(105deg,var(--ink) 18%,var(--wine) 38%,#ef7097 48%,#fff7f9 52%,var(--wine) 62%,var(--ink) 82%);
  background-position: 100% 50%;
  background-size: 260% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  transition: color .25s ease, transform .35s cubic-bezier(.2,.8,.2,1), text-shadow .35s ease;
}
.title-trigger h1::after {
  content: "✦";
  position: absolute;
  right: -.8rem;
  bottom: .05em;
  color: var(--rose);
  font: normal .7rem/1 Georgia, serif;
  opacity: 0;
  transform: translate(-.5rem,.25rem) rotate(-35deg) scale(.5);
  transition: opacity .25s ease, transform .4s cubic-bezier(.2,.8,.2,1);
}
.title-trigger:is(:hover,:focus-visible) h1 {
  color: transparent;
  text-shadow: 0 8px 24px rgba(158,21,62,.12);
  transform: translateY(-.14rem);
  animation: titleStarlight 1.5s ease-in-out infinite alternate;
}
.title-trigger:is(:hover,:focus-visible) h1::after { opacity: 1; transform: translate(0,0) rotate(12deg) scale(1); }
.egg-trigger {
  position: absolute;
  z-index: 12;
  top: max(.75rem, env(safe-area-inset-top));
  right: max(.75rem, env(safe-area-inset-right));
  width: 48px;
  min-height: 48px;
  border: 1px solid rgba(158,21,62,.2);
  border-radius: 50%;
  background: transparent;
  color: var(--wine);
  font-size: 1.1rem;
  cursor: pointer;
}
.egg-trigger small { position: absolute; top: calc(100% + .3rem); right: 0; width: max-content; color: var(--wine); opacity: .72; }
.touch-controls { position: relative; display: flex; align-items: center; gap: .75rem; width: max-content; margin: 0 0 1.6rem; }
.music-control { display: flex; }
.music-control button {
  position: relative;
  display: grid;
  place-items: center;
  width: 3.25rem;
  min-height: 3.25rem;
  padding: 0;
  border: 1px solid rgba(158,21,62,.18);
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  color: var(--wine);
  font: 1.25rem/1 Georgia, serif;
  box-shadow: inset 0 0 0 6px rgba(255,255,255,.2);
  cursor: pointer;
  transition: color .18s ease, transform .18s ease, background .18s ease, box-shadow .18s ease;
}
.music-control button::before { content: ""; position: absolute; inset: .48rem; border: 1px solid currentColor; border-radius: 50%; opacity: .18; }
.music-control small { position: absolute; top: calc(100% + .3rem); left: 50%; color: var(--wine); transform: translateX(-50%); opacity: .66; }
.music-glyph { position: relative; z-index: 1; transform: translateY(-.05rem); }
.music-control button:hover { color: var(--rose); transform: rotate(-7deg) scale(1.05); }
.music-control button[aria-pressed="true"] {
  color: var(--rose);
  background: rgba(255,255,255,.34);
  box-shadow: inset 0 0 0 6px rgba(229,61,108,.08), 0 0 0 4px rgba(229,61,108,.06);
  animation: musicPulse 1.4s ease-in-out infinite;
}
.music-control button[aria-pressed="true"] .music-glyph { animation: musicSpin 3.5s linear infinite; }
.music-note { position: fixed; z-index: 20; color: var(--rose); font: italic .9rem/1 Georgia,serif; pointer-events: none; animation: noteFloat 2.2s ease-out forwards; }
.music-playing .heart-scene { opacity: .26; }
.music-playing .mark { border-color: rgba(229,61,108,.4); }
.recipient-signature {
  position: relative;
  display: block;
  width: min(100%,34rem);
  min-height: 48px;
  margin: -.7rem 0 .35rem;
  padding: .75rem 0 0;
  color: var(--wine);
  font: italic 1.3rem/1 Georgia,"Times New Roman",serif;
  text-align: right;
  text-decoration: none;
  transform: rotate(-3deg);
  transition: color .2s ease, transform .2s ease;
}
.recipient-signature span { margin-right: .2rem; color: var(--muted); font-size: .68rem; letter-spacing: .08em; }
.recipient-signature i { display: inline-block; margin-left: .25rem; font-size: .58rem; opacity: .55; transition: transform .25s ease, opacity .25s ease; }
.recipient-signature:hover { color: var(--rose); transform: rotate(-1deg) translateX(-.15rem); }
.recipient-signature:hover i { opacity: 1; transform: rotate(90deg) scale(1.15); }
.spark, .trail, .confetti { position: fixed; z-index: 30; color: var(--rose); pointer-events: none; }
.spark { animation: burst .8s ease-out forwards; }
.trail { font-size: .7rem; animation: trail .55s ease-out forwards; }
.confetti { bottom: -2rem; animation: fly 1.8s ease-out forwards; }
.tiny-message { position: fixed; z-index: 35; color: var(--wine); font: 600 1rem Georgia,serif; pointer-events: none; animation: message 2.2s ease forwards; }
dialog {
  width: min(calc(100% - 2rem),25rem);
  padding: 2rem;
  border: 1px solid rgba(255,255,255,.85);
  border-radius: .5rem;
  background: rgba(255,247,249,.94);
  color: var(--ink);
  box-shadow: 0 25px 90px rgba(80,22,41,.3);
  text-align: center;
  backdrop-filter: blur(20px);
}
dialog::backdrop { background: rgba(56,10,29,.35); backdrop-filter: blur(8px); }
dialog h2 { margin: .6rem auto 1rem; font: 500 2rem/1.08 Georgia,serif; }
.dialog-close { position: absolute; right: .7rem; top: .7rem; width: 48px; min-height: 48px; border: 0; background: transparent; color: var(--ink); font-size: 1.5rem; cursor: pointer; }
.cosmic-portal {
  position: fixed;
  z-index: 44;
  inset: 0;
  background: radial-gradient(ellipse at 50% 58%,#15103a 0,transparent 38%),radial-gradient(ellipse at 15% 10%,rgba(63,45,127,.28),transparent 35%),#02030b;
  opacity: 0;
  transform: scale(1.035);
  pointer-events: none;
  transition: opacity 1.1s cubic-bezier(.22,1,.36,1), transform 1.1s cubic-bezier(.22,1,.36,1);
}
.cosmic-portal::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 17% 28%,rgba(255,255,255,.72) 0 1px,transparent 1.5px),radial-gradient(circle at 68% 19%,rgba(213,202,255,.66) 0 1px,transparent 1.6px),radial-gradient(circle at 82% 72%,rgba(255,180,218,.58) 0 1px,transparent 1.5px),radial-gradient(circle at 34% 81%,rgba(255,255,255,.54) 0 1px,transparent 1.5px);
  background-size: 13rem 11rem,17rem 15rem,19rem 13rem,11rem 17rem;
  opacity: 0;
  transition: opacity .55s ease .18s;
}
.cosmic-departure .cosmic-portal { opacity: 1; transform: scale(1); }
.cosmic-departure .cosmic-portal::after { opacity: .68; }
.cosmic-departure .card { opacity: 0; transform: translateY(-.35rem) scale(.99); }
.cosmic-departure .heart-scene { opacity: 0; transform: scale(1.018); }
button:focus-visible, .recipient-signature:focus-visible { outline: 3px solid var(--wine); outline-offset: 4px; }

@keyframes drift { to { transform: rotate(360deg); } }
@keyframes rise { from { transform: translateY(110vh); } to { transform: translateY(-10vh); } }
@keyframes burst { to { opacity: 0; transform: translate(var(--dx),var(--dy)) rotate(var(--spin)) scale(.2); } }
@keyframes trail { to { opacity: 0; transform: translateY(-25px) scale(.2); } }
@keyframes fly { to { opacity: 0; transform: translate(var(--drift),-110vh) rotate(480deg); } }
@keyframes message { 0% { opacity: 0; transform: translateY(8px); } 20%,75% { opacity: 1; } to { opacity: 0; transform: translateY(-35px); } }
@keyframes curiousPulse { 50% { transform: translateY(-2px); box-shadow: 0 0 0 7px rgba(229,61,108,.08),inset 0 0 0 6px rgba(255,255,255,.25); } }
@keyframes musicPulse { 50% { transform: translateY(-2px) scale(1.08); } }
@keyframes musicSpin { 50% { transform: translateY(-.05rem) rotate(9deg); } to { transform: translateY(-.05rem) rotate(0); } }
@keyframes noteFloat { to { opacity: 0; transform: translate(var(--note-drift),-70px) rotate(18deg) scale(.7); } }
@keyframes titleStarlight { from { background-position: 100% 50%; } to { background-position: 0 50%; } }

@media (max-width: 47.99rem) {
  .app { background: radial-gradient(circle at 64% 22%,rgba(255,255,255,.9),transparent 34%),linear-gradient(160deg,#fffafb,#f7e4e9 62%,#ebbecb); }
  .card { position: absolute; left: max(1.5rem,env(safe-area-inset-left)); right: max(1.5rem,env(safe-area-inset-right)); bottom: max(5vh,calc(env(safe-area-inset-bottom) + 1rem)); width: auto; }
  .heart-scene { opacity: .46; }
  h1 { max-width: 11ch; font-size: clamp(2.55rem,12vw,4.2rem); }
  .lede { max-width: 29ch; }
  .recipient-signature { font-size: 1.12rem; }
}
@media (max-width: 30rem) {
  .app { padding: max(3.25rem,calc(env(safe-area-inset-top) + 2.5rem)) max(1rem,env(safe-area-inset-right)) max(4rem,calc(env(safe-area-inset-bottom) + 3rem)) max(1rem,env(safe-area-inset-left)); }
  .card { width: auto; padding: 1rem 0; }
  .mark { width: 3rem; min-height: 3rem; }
  .eyebrow { margin-bottom: .45rem; }
  .title-trigger { padding-bottom: .65rem; }
  h1 { font-size: clamp(2.25rem,10.5vw,3.15rem); line-height: .92; }
  .lede { margin-bottom: 1rem; font-size: .92rem; line-height: 1.45; }
  .touch-controls { margin-bottom: 1.35rem; gap: .6rem; }
  .music-control button { width: 3rem; min-height: 3rem; }
  .recipient-signature { margin-top: -.45rem; margin-bottom: .15rem; font-size: 1rem; }
  dialog { width: min(calc(100% - 2rem),22.5rem); padding: 1.5rem 1.25rem; }
  dialog h2 { font-size: 1.7rem; }
}
@media (max-height: 43.75rem) and (max-width: 30rem) {
  .app { padding-top: max(3rem,calc(env(safe-area-inset-top) + 2.25rem)); padding-bottom: max(3.5rem,calc(env(safe-area-inset-bottom) + 2.75rem)); }
  .card { padding: .75rem 0; }
  .mark { width: 2.75rem; min-height: 2.75rem; }
  .eyebrow { margin-bottom: .3rem; }
  .title-trigger { padding-bottom: .45rem; }
  h1 { font-size: clamp(1.85rem,9vw,2.45rem); }
  .lede { margin-bottom: .7rem; font-size: .84rem; line-height: 1.35; }
}
@media (hover: none) {
  .title-trigger:active h1 { color: transparent; background-position: 0 50%; transform: scale(.985); }
  .title-trigger:active h1::after { opacity: 1; transform: translate(0,0) rotate(12deg) scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms!important; animation-iteration-count: 1!important; transition-duration: .01ms!important; }
  .card { transform: none!important; }
  .cosmic-portal::after { transition: none; }
  .cosmic-departure .cosmic-portal::after { opacity: .5; }
}