:root {
  --paper: #fbf6ec;
  --paper-deep: #f2e8d8;
  --ink-gold: #8c6a36;
  --ink-brown: #6d5232;
  --soft-shadow: 0 24px 70px rgba(109, 82, 50, 0.16);
  --card-width: min(calc(100vw - 24px), 430px, calc((100svh - 24px) * 9 / 16));
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 12%, rgba(255, 255, 255, 0.78), transparent 30rem),
    linear-gradient(180deg, var(--paper), var(--paper-deep));
  color: var(--ink-brown);
  font-family: Georgia, "Times New Roman", serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button {
  padding: 0;
  border: 0;
  font: inherit;
  color: inherit;
  background: transparent;
  cursor: pointer;
}

.page-shell {
  display: grid;
  min-height: 100svh;
  padding: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  place-items: center;
}

.card-frame {
  position: relative;
  width: var(--card-width);
  aspect-ratio: 9 / 16;
  max-height: calc(100svh - 24px);
  overflow: hidden;
  background: #fffaf1;
  border-radius: 8px;
  box-shadow: var(--soft-shadow);
  isolation: isolate;
  touch-action: manipulation;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.scene {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: scale(1.01);
  transition:
    opacity 900ms ease,
    transform 1200ms ease;
}

.scene.is-active {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
  z-index: 2;
}

.scene img,
.scene video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tap-prompt {
  position: absolute;
  left: clamp(22px, 9vw, 52px);
  right: clamp(22px, 9vw, 52px);
  bottom: clamp(72px, 12%, 130px);
  padding: 0.45rem 0.65rem;
  color: var(--ink-gold);
  font-size: clamp(0.86rem, 3.4vw, 1.08rem);
  letter-spacing: 0;
  line-height: 1.45;
  text-align: center;
  text-shadow: 0 1px 12px rgba(255, 250, 240, 0.92);
  animation: promptBreath 2400ms ease-in-out infinite;
}

.final-copy {
  position: absolute;
  left: clamp(24px, 8vw, 52px);
  right: clamp(24px, 8vw, 52px);
  top: 47%;
  transform: translateY(-50%);
  display: grid;
  max-height: 72%;
  gap: clamp(0.42rem, 1.8vw, 0.72rem);
  justify-items: center;
  color: var(--ink-gold);
  text-align: center;
  text-wrap: balance;
  opacity: 0;
  transition:
    opacity 1400ms ease 380ms,
    transform 1400ms ease 380ms;
}

.scene-final.is-active .final-copy {
  opacity: 1;
  transform: translateY(-53%);
}

.final-copy h1,
.final-copy p {
  max-width: 100%;
  margin: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.68),
    0 8px 26px rgba(109, 82, 50, 0.12);
}

.final-copy h1 {
  font-size: clamp(1.65rem, 7.2vw, 2.6rem);
  font-weight: 500;
  line-height: 1.08;
}

.final-copy p {
  max-width: 19rem;
  margin-inline: auto;
  color: var(--ink-brown);
  font-size: clamp(1rem, 3.7vw, 1.14rem);
  line-height: 1.42;
}

#finalMessage {
  white-space: pre-line;
}

.final-signoff {
  display: grid;
  gap: 0.08rem;
  max-width: 19rem;
  justify-items: center;
  margin-top: clamp(0.1rem, 0.8vw, 0.3rem);
}

.final-copy .with-love {
  color: var(--ink-gold);
  font-size: clamp(0.82rem, 3.3vw, 1rem);
  font-style: italic;
}

.final-copy .from-name {
  color: var(--ink-brown);
  font-size: clamp(1rem, 3.8vw, 1.14rem);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.final-copy.is-compact {
  gap: clamp(0.28rem, 1.2vw, 0.48rem);
}

.final-copy.is-compact .final-signoff,
.final-copy.is-compact .watch-again-button {
  margin-top: 0;
}

.soft-control {
  min-height: 2rem;
  border: 1px solid rgba(140, 106, 54, 0.2);
  border-radius: 999px;
  background: rgba(255, 252, 245, 0.72);
  box-shadow: 0 8px 22px rgba(109, 82, 50, 0.08);
  color: var(--ink-gold);
  font-size: 0.82rem;
  line-height: 1;
  letter-spacing: 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition:
    background-color 220ms ease,
    border-color 220ms ease,
    color 220ms ease,
    opacity 220ms ease;
}

.soft-control:focus-visible {
  outline: 2px solid rgba(140, 106, 54, 0.38);
  outline-offset: 3px;
}

.soft-control:active {
  background: rgba(255, 248, 235, 0.86);
}

.sound-toggle {
  position: absolute;
  top: clamp(12px, 3.6vw, 18px);
  right: clamp(12px, 3.6vw, 18px);
  z-index: 5;
  min-width: 4.1rem;
  padding: 0.45rem 0.72rem;
}

.demo-badge {
  position: absolute;
  top: clamp(12px, 3.6vw, 18px);
  left: clamp(12px, 3.6vw, 18px);
  z-index: 6;
  padding: 0.42rem 0.68rem;
  border: 1px solid rgba(140, 106, 54, 0.25);
  border-radius: 999px;
  background: rgba(255, 252, 245, 0.84);
  box-shadow: 0 7px 18px rgba(109, 82, 50, 0.08);
  color: var(--ink-gold);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(0.62rem, 2.5vw, 0.72rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  pointer-events: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.watch-again-button {
  margin-top: clamp(0.18rem, 1vw, 0.45rem);
  padding: 0.55rem 0.95rem;
}

@keyframes promptBreath {
  0%,
  100% {
    opacity: 0.7;
  }

  50% {
    opacity: 1;
  }
}

@media (max-height: 620px) {
  .page-shell {
    padding: 8px;
  }

  .card-frame {
    max-height: calc(100svh - 16px);
  }

  .tap-prompt {
    bottom: 9%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scene,
  .final-copy {
    transition-duration: 1ms;
  }

  .tap-prompt {
    animation: none;
  }
}