:root {
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --ink: #33262c;
  --muted: #7b6670;
  --rose: #ef5f8a;
  --rose-deep: #d94a75;
  --rose-soft: #ffe6ef;
  --cream: #fff9fc;
  --blue-soft: #eaf6ff;
  --mint-soft: #edfbee;
  --line: rgba(239, 95, 138, 0.2);
  --shadow: 0 20px 55px rgba(169, 74, 108, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  overflow-x: hidden;
  background: #fff7fb;
}

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(circle at 14% 12%, rgba(255, 205, 222, 0.72), transparent 30%),
    radial-gradient(circle at 90% 18%, rgba(218, 241, 255, 0.88), transparent 28%),
    linear-gradient(145deg, #fff8fb 0%, #fff1f6 45%, #f6fbff 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button {
  border: 0;
  font: inherit;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.app {
  position: relative;
  isolation: isolate;
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  place-items: center;
  padding:
    calc(18px + var(--safe-top))
    calc(16px + var(--safe-right))
    calc(18px + var(--safe-bottom))
    calc(16px + var(--safe-left));
}

.decor {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.soft-orb,
.heart,
.spark {
  position: absolute;
  display: block;
  user-select: none;
}

.soft-orb {
  width: 140px;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(2px);
  opacity: 0.58;
  animation: floatOrb 8s ease-in-out infinite;
}

.orb-one {
  top: 9%;
  left: -42px;
  background: rgba(255, 190, 211, 0.7);
}

.orb-two {
  right: -58px;
  bottom: 14%;
  width: 178px;
  background: rgba(209, 237, 255, 0.76);
  animation-delay: -2.5s;
}

.orb-three {
  left: 58%;
  bottom: -72px;
  width: 170px;
  background: rgba(219, 248, 222, 0.68);
  animation-delay: -4s;
}

.heart {
  color: rgba(239, 95, 138, 0.45);
  font-size: 34px;
  line-height: 1;
  animation: floatHeart 5.5s ease-in-out infinite;
}

.heart-one {
  top: 18%;
  right: 8%;
}

.heart-two {
  bottom: 18%;
  left: 7%;
  font-size: 26px;
  animation-delay: -1.8s;
}

.spark {
  color: rgba(217, 74, 117, 0.32);
  font-size: 24px;
  animation: twinkle 3.6s ease-in-out infinite;
}

.spark-one {
  top: 12%;
  left: 28%;
}

.spark-two {
  right: 22%;
  bottom: 10%;
  animation-delay: -1.4s;
}

.postcard {
  width: min(100%, 430px);
  max-height: calc(100vh - 36px - var(--safe-top) - var(--safe-bottom));
  max-height: calc(100dvh - 36px - var(--safe-top) - var(--safe-bottom));
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: clamp(22px, 6vw, 30px);
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 249, 252, 0.82)),
    linear-gradient(135deg, rgba(255, 230, 239, 0.72), rgba(234, 246, 255, 0.62));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.screen {
  display: none;
  min-height: min(660px, calc(100vh - 96px));
  min-height: min(660px, calc(100dvh - 96px));
  place-content: center;
  text-align: center;
}

.screen.is-active {
  display: grid;
  animation: screenIn 420ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.screen[data-screen="choices"] {
  place-content: stretch;
  text-align: left;
}

.screen[data-screen="choices"].is-active {
  display: block;
}

.screen[data-screen="final"] {
  gap: 16px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--rose-deep);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: lowercase;
}

h1,
h2 {
  margin: 0;
  color: var(--ink);
  font-weight: 850;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2rem, 9vw, 2.55rem);
  line-height: 1.08;
}

h1 span {
  display: block;
  margin-top: 16px;
}

h2 {
  font-size: clamp(1.8rem, 7.5vw, 2.25rem);
  line-height: 1.12;
}

.note,
.lead {
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.lead {
  color: var(--ink);
  font-size: 1.12rem;
  font-weight: 700;
}

.actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
}

.intro-actions {
  min-height: 58px;
}

.stacked {
  flex-direction: column;
}

.btn {
  min-height: 54px;
  min-width: 118px;
  padding: 15px 22px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 800;
  color: var(--ink);
  box-shadow: 0 12px 26px rgba(169, 74, 108, 0.14);
  transform: translateY(0) scale(1);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.btn:active {
  transform: translateY(1px) scale(0.97);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--rose), var(--rose-deep));
}

.btn-primary:hover {
  box-shadow: 0 16px 30px rgba(217, 74, 117, 0.27);
}

.btn-secondary {
  color: #b63662;
  background: #fff;
  border: 1px solid var(--line);
}

.btn-secondary:hover,
.btn-ghost:hover,
.btn-small:hover {
  background: #fff7fb;
}

.btn-ghost {
  color: #9f5870;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
}

.btn-ghost.is-running {
  position: fixed;
  z-index: 10;
  margin: 0;
  will-change: left, top, transform;
  transition:
    left 230ms cubic-bezier(0.2, 0.9, 0.3, 1.2),
    top 230ms cubic-bezier(0.2, 0.9, 0.3, 1.2),
    transform 180ms ease,
    background 180ms ease;
}

.btn-small {
  min-width: 0;
  margin: 6px auto 0;
  padding-inline: 18px;
  color: #9f5870;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  font-size: 0.95rem;
}

.date-options {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.date-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 13px;
  width: 100%;
  min-height: 112px;
  padding: 15px;
  border: 1px solid rgba(239, 95, 138, 0.18);
  border-radius: 8px;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(255, 246, 250, 0.88)),
    var(--cream);
  box-shadow: 0 12px 28px rgba(169, 74, 108, 0.11);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.date-card:hover {
  border-color: rgba(239, 95, 138, 0.36);
  box-shadow: 0 16px 34px rgba(169, 74, 108, 0.16);
  transform: translateY(-2px);
}

.date-card:active {
  transform: translateY(1px) scale(0.985);
}

.date-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--rose-soft), var(--blue-soft));
  font-size: 1.45rem;
}

.date-copy {
  display: grid;
  gap: 6px;
}

.date-copy strong {
  font-size: 1.03rem;
  line-height: 1.2;
}

.date-copy span {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.38;
}

.plan {
  display: grid;
  gap: 7px;
  margin-top: 22px;
  padding: 16px;
  border: 1px solid rgba(239, 95, 138, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 12px 28px rgba(169, 74, 108, 0.1);
}

.plan span {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.plan strong {
  color: var(--rose-deep);
  font-size: 1.12rem;
  line-height: 1.3;
}

@keyframes screenIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes floatOrb {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(10px, -16px, 0) scale(1.05);
  }
}

@keyframes floatHeart {
  0%,
  100% {
    opacity: 0.35;
    transform: translateY(0) rotate(-6deg);
  }
  50% {
    opacity: 0.62;
    transform: translateY(-14px) rotate(6deg);
  }
}

@keyframes twinkle {
  0%,
  100% {
    opacity: 0.25;
    transform: scale(0.86) rotate(0deg);
  }
  50% {
    opacity: 0.72;
    transform: scale(1.08) rotate(8deg);
  }
}

@media (min-width: 600px) {
  .postcard {
    padding: 34px;
  }

  .screen {
    min-height: 640px;
  }
}

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