:root {
  --bg-0: #080411;
  --bg-1: #12081f;
  --bg-2: #1a0d2f;
  --ink: #fff7fd;
  --muted: rgba(255, 244, 251, 0.76);
  --soft: rgba(255, 255, 255, 0.08);
  --soft-border: rgba(255, 255, 255, 0.14);
  --pink: #ff6fb2;
  --pink-soft: #ffb7da;
  --violet: #9c7cff;
  --blue: #79c6ff;
  --peach: #ffb38c;
  --gold: #ffd67a;
  --shadow-lg: 0 30px 90px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 18px 48px rgba(0, 0, 0, 0.25);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --safe-top: env(safe-area-inset-top);
  --safe-right: env(safe-area-inset-right);
  --safe-bottom: env(safe-area-inset-bottom);
  --safe-left: env(safe-area-inset-left);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg-0);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  min-height: 100svh;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% -20%, rgba(140, 90, 255, 0.24), transparent 30%),
    radial-gradient(circle at 10% 10%, rgba(255, 111, 178, 0.16), transparent 24%),
    linear-gradient(160deg, var(--bg-2), var(--bg-1) 45%, var(--bg-0));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

h1, h2, h3, p {
  margin: 0;
}

button, a {
  font: inherit;
  -webkit-tap-highlight-color: transparent;
}

button, .cta {
  min-height: 48px;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(255, 194, 224, 0.95);
  outline-offset: 4px;
}

canvas,
.noise,
.gradient-blob,
.cursor-glow,
.heart-rain,
.flash {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

#cosmos {
  z-index: -6;
}

#sparkles {
  z-index: -5;
  opacity: 0.85;
}

.noise {
  z-index: -2;
  opacity: 0.045;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.8) 0 0.6px, transparent 0.7px),
    radial-gradient(circle at 80% 50%, rgba(255,255,255,.8) 0 0.5px, transparent 0.6px),
    radial-gradient(circle at 40% 80%, rgba(255,255,255,.8) 0 0.7px, transparent 0.8px);
  background-size: 180px 180px, 220px 220px, 260px 260px;
  mix-blend-mode: soft-light;
}

.gradient-blob {
  z-index: -4;
  width: 40rem;
  height: 40rem;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.14;
  animation: blobFloat 20s ease-in-out infinite alternate;
}

.blob-a {
  top: -16rem;
  left: -10rem;
  background: var(--pink);
}

.blob-b {
  right: -12rem;
  top: 10rem;
  background: var(--violet);
  animation-delay: -8s;
}

.blob-c {
  left: 25%;
  bottom: -20rem;
  background: var(--blue);
  animation-delay: -12s;
}

.cursor-glow {
  z-index: 40;
  width: 22rem;
  height: 22rem;
  margin-left: -11rem;
  margin-top: -11rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 141, 197, 0.18), rgba(255, 141, 197, 0.06) 35%, transparent 70%);
  opacity: 0;
  transition: opacity 220ms ease;
  mix-blend-mode: screen;
}

.heart-rain {
  z-index: 50;
  overflow: hidden;
}

.flash {
  z-index: 49;
  background: radial-gradient(circle, rgba(255, 213, 235, 0.28), transparent 55%);
  opacity: 0;
}

.flash.is-active {
  animation: flashBurst 700ms ease;
}

.screen {
  display: none;
}

.screen.is-active {
  display: block;
}

.landing {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding:
    max(24px, var(--safe-top))
    20px
    max(24px, var(--safe-bottom));
}

.landing-shell {
  position: relative;
  width: min(860px, 100%);
  padding: clamp(36px, 6vw, 72px);
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--soft-border);
  background:
    linear-gradient(145deg, rgba(255,255,255,.11), rgba(255,255,255,.03));
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  box-shadow: var(--shadow-lg);
  text-align: center;
  isolation: isolate;
}

.landing-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 10%, rgba(255, 111, 178, 0.28), transparent 24%),
    radial-gradient(circle at 90% 20%, rgba(121, 198, 255, 0.14), transparent 22%),
    radial-gradient(circle at 50% 100%, rgba(156, 124, 255, 0.18), transparent 26%);
  z-index: -1;
}

.eyebrow {
  color: rgba(255, 230, 243, 0.78);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.ring,
.glow-core,
.seal {
  position: absolute;
}

.ring {
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.08);
}

.ring-one {
  width: 25rem;
  height: 25rem;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  animation: spin 18s linear infinite;
}

.ring-two {
  width: 18rem;
  height: 18rem;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  animation: spinReverse 13s linear infinite;
}

.glow-core {
  width: 14rem;
  height: 14rem;
  left: 50%;
  top: 38%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 170, 215, 0.34), rgba(156, 124, 255, 0.14) 45%, transparent 72%);
  filter: blur(10px);
}

.seal {
  position: relative;
  z-index: 1;
  width: 84px;
  height: 84px;
  margin: 28px auto 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.18);
  background: linear-gradient(145deg, rgba(255,255,255,.14), rgba(255,255,255,.05));
  box-shadow:
    0 0 0 16px rgba(255,255,255,.02),
    0 0 50px rgba(255, 111, 178, 0.18);
  font-size: 2rem;
  color: var(--pink-soft);
  animation: pulse 3s ease-in-out infinite;
}

.landing h1 {
  position: relative;
  z-index: 1;
  margin-top: 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.7rem, 7vw, 5.8rem);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: -0.055em;
}

.landing-copy {
  position: relative;
  z-index: 1;
  width: min(620px, 100%);
  margin: 24px auto 36px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
  line-height: 1.72;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
  will-change: transform;
}

.cta:hover {
  transform: translateY(-3px);
}

.cta-primary {
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, #fff7fc, #ffb7da);
  color: #2b0a1d;
  font-weight: 800;
  box-shadow: 0 18px 44px rgba(255, 111, 178, 0.25);
}

.cta-primary:hover {
  box-shadow: 0 22px 58px rgba(255, 111, 178, 0.34);
}

.cta-secondary,
.cta-ghost {
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.14);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.cta-ghost {
  color: var(--ink);
}

.cta-icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--pink);
  color: white;
}

.tiny-note {
  position: relative;
  z-index: 1;
  margin-top: 20px;
  color: rgba(255,255,255,.46);
  font-size: 0.8rem;
}

.experience {
  opacity: 0;
  transition: opacity 700ms ease;
}

.experience.is-active {
  opacity: 1;
}

.hero,
.section,
footer {
  width: min(1180px, calc(100% - 32px));
  margin-inline: auto;
}

.hero {
  min-height: 100vh;
  min-height: 100svh;
  padding:
    max(72px, calc(var(--safe-top) + 28px))
    0
    max(70px, calc(var(--safe-bottom) + 24px));
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.hero-badge {
  margin-bottom: 18px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  color: rgba(255, 233, 244, 0.8);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.planet-hero {
  position: relative;
  width: min(320px, 54vw);
  aspect-ratio: 1;
  margin: 18px 0 24px;
}

.planet {
  position: absolute;
  inset: 16%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255,255,255,.95), rgba(255,191,221,.55) 20%, rgba(174,118,255,.85) 52%, rgba(63,18,111,.95) 82%);
  box-shadow:
    inset -14px -20px 42px rgba(40, 8, 60, 0.58),
    0 0 70px rgba(255,111,178,.16);
  animation: floatPlanet 5.5s ease-in-out infinite;
}

.planet-ring {
  position: absolute;
  inset: 20%;
  border: 2px solid rgba(255, 218, 235, 0.3);
  border-radius: 50%;
  transform: rotate(-16deg) scaleX(1.35) scaleY(0.42);
  box-shadow: 0 0 32px rgba(156, 124, 255, 0.12);
}

.planet-heart {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(2rem, 5vw, 3rem);
  color: white;
  text-shadow: 0 0 24px rgba(255,255,255,.55);
  animation: pulse 2.4s ease-in-out infinite;
}

.hero-title {
  line-height: 0.9;
  letter-spacing: -0.065em;
}

.title-line {
  display: block;
  color: rgba(255,255,255,.82);
  font-size: clamp(2rem, 5.8vw, 5rem);
  font-weight: 300;
}

.title-main {
  display: block;
  margin-top: 16px;
  background: linear-gradient(112deg, #ffffff, #ffbde0 40%, #cbb8ff 85%, #83d4ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(4rem, 13vw, 11rem);
  font-weight: 500;
  filter: drop-shadow(0 18px 48px rgba(255, 111, 178, 0.16));
}

.hero-copy {
  width: min(760px, 100%);
  margin-top: 34px;
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.16rem, 2.5vw, 1.72rem);
  font-style: italic;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 34px;
}

.scroll-prompt {
  margin-top: 46px;
  color: rgba(255,255,255,.5);
  font-size: 0.8rem;
}

.scroll-prompt span {
  display: block;
  width: 1px;
  height: 52px;
  margin: 0 auto 10px;
  background: linear-gradient(to bottom, rgba(255,255,255,.65), transparent);
}

.section {
  padding: 90px 0;
}

.section-copy {
  width: min(820px, 100%);
  margin-bottom: 34px;
}

.section-copy h2 {
  margin-top: 12px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.section-copy p:last-child {
  margin-top: 18px;
  color: var(--muted);
  line-height: 1.78;
  font-size: 1.04rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.feature-card,
.memory-panel,
.finale-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--soft-border);
  background:
    linear-gradient(150deg, rgba(255,255,255,.11), rgba(255,255,255,.03));
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.feature-card {
  min-height: 250px;
  padding: 28px;
}

.feature-card::after,
.memory-panel::after {
  content: "";
  position: absolute;
  inset: auto -40% -55% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.14), transparent 60%);
  opacity: 0.5;
}

.card-number {
  display: inline-block;
  margin-bottom: 34px;
  color: var(--pink-soft);
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: 0.16em;
}

.feature-card h3,
.memory-panel h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.8rem;
  font-weight: 500;
}

.feature-card p,
.memory-panel p {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.72;
}

.gallery-strip {
  padding-top: 10px;
}

.floating-panels {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 1fr;
  gap: 16px;
}

.memory-panel {
  min-height: 260px;
  padding: 28px;
}

.panel-label {
  color: rgba(255, 227, 241, 0.76);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.panel-aura {
  position: absolute;
  inset: auto auto -60px -50px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  filter: blur(24px);
  opacity: 0.24;
  background: radial-gradient(circle, var(--pink), transparent 70%);
}

.meter {
  margin-top: 18px;
  height: 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
}

.meter-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--pink), var(--peach), var(--gold));
  box-shadow: 0 0 24px rgba(255, 111, 178, 0.3);
  animation: shimmer 3s linear infinite;
  background-size: 200% 100%;
}

.letter-wrap {
  padding-top: 50px;
}

.letter-shell {
  position: relative;
  width: min(900px, 100%);
  margin-inline: auto;
}

.envelope-glow {
  position: absolute;
  inset: -30px;
  border-radius: 40px;
  background:
    radial-gradient(circle at 50% 20%, rgba(255, 185, 221, 0.14), transparent 34%),
    radial-gradient(circle at 80% 90%, rgba(121, 198, 255, 0.08), transparent 30%);
  filter: blur(10px);
}

.letter-paper {
  position: relative;
  padding: clamp(30px, 7vw, 78px);
  border-radius: 18px;
  color: #3b1530;
  background:
    linear-gradient(rgba(255,255,255,.48), rgba(255,255,255,.48)),
    repeating-linear-gradient(0deg, #fff8f2 0, #fff8f2 31px, #ead9d0 32px);
  box-shadow:
    0 45px 120px rgba(0, 0, 0, 0.42),
    inset 0 0 90px rgba(140, 74, 101, 0.08);
  transform: rotate(-0.7deg);
}

.letter-paper::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(95, 35, 61, 0.11);
  pointer-events: none;
}

.stamp {
  position: absolute;
  right: 34px;
  top: 30px;
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border: 2px dashed rgba(142, 63, 97, 0.35);
  color: #b03f71;
  font-size: 1.5rem;
  transform: rotate(8deg);
}

.paper-topline {
  color: rgba(59, 21, 48, 0.54);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.letter-paper h2 {
  margin-top: 26px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 500;
  letter-spacing: -0.045em;
}

.letter-paper p {
  margin-top: 22px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.06rem, 2vw, 1.3rem);
  line-height: 1.86;
}

.signature-block {
  margin-top: 34px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-family: Georgia, "Times New Roman", serif;
}

.signature-block strong {
  margin-top: 4px;
  color: #9d285f;
  font-size: 2.6rem;
  font-style: italic;
  font-weight: 500;
}

.finale {
  padding-top: 70px;
  padding-bottom: 120px;
}

.finale-card {
  padding: clamp(28px, 6vw, 58px);
  text-align: center;
}

.finale-card h2 {
  margin-top: 12px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.mega-message {
  margin: 28px auto 32px;
  width: min(900px, 100%);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.8rem, 8vw, 7rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
  background: linear-gradient(112deg, #ffffff, #ffbde0 40%, #cbb8ff 80%, #8fd8ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

footer {
  padding:
    0
    0
    max(34px, calc(var(--safe-bottom) + 24px));
  color: rgba(255,255,255,.46);
  text-align: center;
  font-size: 0.84rem;
}

footer span {
  color: var(--pink);
  margin-left: 6px;
}

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(26px) scale(0.985);
  transition:
    opacity 700ms cubic-bezier(.2,.8,.2,1),
    transform 700ms cubic-bezier(.2,.8,.2,1);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.tilt-card {
  transform-style: preserve-3d;
  transition: transform 220ms ease;
}

.magnetic {
  position: relative;
}

.flying-heart {
  position: absolute;
  bottom: -60px;
  font-size: var(--size, 22px);
  color: var(--color, #ff77b8);
  filter: drop-shadow(0 10px 18px rgba(255, 70, 140, 0.24));
  animation: flyHeart var(--duration, 4s) ease-in forwards;
}

@keyframes blobFloat {
  to {
    transform: translate3d(40px, 24px, 0) scale(1.08);
  }
}

@keyframes spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes spinReverse {
  to {
    transform: translate(-50%, -50%) rotate(-360deg);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.08); }
  35% { transform: scale(1); }
  55% { transform: scale(1.05); }
  75% { transform: scale(1); }
}

@keyframes floatPlanet {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes shimmer {
  to {
    background-position: 200% 0;
  }
}

@keyframes flyHeart {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, 0) rotate(0) scale(0.55);
  }
  15% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(var(--drift, 0px), -120vh, 0)
      rotate(var(--rotate, 180deg)) scale(1.25);
  }
}

@keyframes flashBurst {
  0% { opacity: 0; }
  28% { opacity: 1; }
  100% { opacity: 0; }
}

@media (max-width: 1100px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .floating-panels {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .landing-shell {
    padding: 34px 22px;
    border-radius: 28px;
  }

  .landing h1 {
    font-size: clamp(2.25rem, 10vw, 4rem);
  }

  .planet-hero {
    width: min(270px, 72vw);
  }

  .hero-title {
    letter-spacing: -0.05em;
  }

  .title-line {
    font-size: clamp(1.7rem, 8vw, 2.6rem);
  }

  .title-main {
    font-size: clamp(3.6rem, 17vw, 6.5rem);
  }

  .hero-actions {
    flex-direction: column;
    width: min(440px, 100%);
  }

  .hero-actions .cta {
    width: 100%;
  }

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

  .letter-paper {
    transform: none;
  }

  .stamp {
    right: 18px;
    top: 18px;
    width: 46px;
    height: 46px;
  }

  .section,
  .finale {
    padding-top: 72px;
    padding-bottom: 88px;
  }
}

@media (max-width: 430px) {
  .landing {
    padding-left: 16px;
    padding-right: 16px;
  }

  .ring-one {
    width: 17rem;
    height: 17rem;
  }

  .ring-two {
    width: 12rem;
    height: 12rem;
  }

  .glow-core {
    width: 10rem;
    height: 10rem;
  }

  .seal {
    width: 68px;
    height: 68px;
    font-size: 1.6rem;
  }

  .cta {
    width: 100%;
  }

  .hero,
  .section,
  footer {
    width: min(1180px, calc(100% - 24px));
  }

  .hero-copy {
    font-size: 1.03rem;
  }

  .feature-card,
  .memory-panel {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
    animation-iteration-count: 1 !important;
  }

  .reveal-on-scroll {
    opacity: 1;
    transform: none;
  }

  .cursor-glow {
    display: none;
  }
}