:root{
  --bg1:#fffafc;
  --bg2:#fff1f6;
  --bg3:#ffeef5;
  --text:#5c4251;
  --muted:#8a6a79;
  --accent:#e8a9c2;
  --accent-dark:#8b4963;
  --card:rgba(255,255,255,.84);
  --border:rgba(232,169,194,.24);
  --shadow:0 30px 80px rgba(223,170,191,.18);
  --glow:0 0 30px rgba(255,221,233,.45);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(255,226,236,.95), transparent 25%),
    radial-gradient(circle at 90% 20%, rgba(255,238,245,.92), transparent 22%),
    radial-gradient(circle at 18% 88%, rgba(255,243,247,.95), transparent 24%),
    linear-gradient(135deg,var(--bg1),var(--bg2),var(--bg3));
  overflow-x:hidden;
}

.hearts,.particles,.blurs{
  position:fixed;
  inset:0;
  overflow:hidden;
  pointer-events:none;
  z-index:0;
}

.hearts span{
  position:absolute;
  bottom:-24px;
  font-size:clamp(14px,2vw,20px);
  opacity:.18;
  color:#d790af;
  animation:float 15s linear infinite;
}
.hearts span:nth-child(1){left:8%}
.hearts span:nth-child(2){left:21%;animation-duration:19s}
.hearts span:nth-child(3){left:37%;animation-duration:17s}
.hearts span:nth-child(4){left:54%;animation-duration:21s}
.hearts span:nth-child(5){left:72%;animation-duration:16s}
.hearts span:nth-child(6){left:88%;animation-duration:20s}

.particle{
  position:absolute;
  width:8px;height:8px;border-radius:999px;
  background:rgba(255,230,238,.95);
  box-shadow:0 0 16px rgba(255,218,230,.85);
  animation:twinkle var(--dur) ease-in-out infinite;
  animation-delay:var(--delay);
}

.blur{
  position:absolute;
  border-radius:999px;
  filter:blur(44px);
  opacity:.55;
  animation:drift 13s ease-in-out infinite;
}
.blur.one{
  width:260px;height:260px;
  left:-60px;top:-40px;
  background:rgba(255,214,228,.82);
}
.blur.two{
  width:220px;height:220px;
  right:-40px;top:28%;
  background:rgba(255,236,244,.9);
  animation-delay:-4s;
}
.blur.three{
  width:180px;height:180px;
  left:18%;bottom:-30px;
  background:rgba(255,241,246,.92);
  animation-delay:-7s;
}

main{
  position:relative;
  z-index:2;
  width:min(calc(100% - 24px), 940px);
  margin:auto;
  padding:20px 0 max(28px, env(safe-area-inset-bottom));
}

.section{
  background:var(--card);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  border-radius:32px;
  padding:22px;
  margin-bottom:18px;
  box-shadow:var(--shadow);
}

.center{text-align:center}
.serif{font-family:Georgia,"Times New Roman",serif;letter-spacing:-.03em}
.handwritten{
  font-family:"Segoe Print","Bradley Hand","Comic Sans MS",cursive;
  font-size:clamp(1.06rem,4.2vw,1.22rem);
  line-height:2.05;
  color:#765766;
}
h1,h2,h3,p{margin:0}
h1{font-size:clamp(2.25rem,7vw,4.5rem);line-height:1.02}
h2{font-size:clamp(1.95rem,6vw,3.15rem);line-height:1.08}
.lead{
  margin:16px auto 0;
  max-width:680px;
  line-height:1.95;
  color:var(--muted);
  font-size:clamp(.99rem,3.5vw,1.08rem);
}

.btn-row{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  margin-top:24px;
}
.btn{
  border:none;
  padding:14px 24px;
  border-radius:999px;
  background:linear-gradient(135deg,#f5b9d0,#ffe4f0);
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:#6f4257;
  min-height:48px;
  box-shadow:0 12px 26px rgba(232,169,194,.22);
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease;
}
.btn:hover{
  transform:translateY(-2px) scale(1.01);
  box-shadow:0 18px 34px rgba(232,169,194,.28);
  filter:saturate(1.04);
}
.btn.secondary{
  background:rgba(255,255,255,.92);
  border:1px solid rgba(232,169,194,.22);
}

.hero{
  min-height:84vh;
  display:grid;
  place-items:center;
  text-align:center;
  overflow:hidden;
}
.hero-card{
  max-width:780px;
  padding:42px 26px;
  border-radius:34px;
  background:linear-gradient(180deg, rgba(255,255,255,.76), rgba(255,249,252,.64));
  border:1px solid rgba(232,169,194,.20);
  position:relative;
  box-shadow:var(--shadow), var(--glow);
}
.hero-card::before,.hero-card::after{
  content:"";
  position:absolute;
  border-radius:999px;
  filter:blur(32px);
  opacity:.78;
  pointer-events:none;
}
.hero-card::before{
  width:170px;height:170px;top:-44px;left:-34px;
  background:rgba(255,228,236,.92);
}
.hero-card::after{
  width:150px;height:150px;right:-28px;bottom:-34px;
  background:rgba(255,239,245,.96);
}
.pill{
  display:inline-flex;
  padding:10px 18px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  border:1px solid rgba(232,169,194,.24);
  color:var(--muted);
  margin-bottom:20px;
  font-size:.95rem;
}

.envelope-stage{
  min-height:82vh;
  display:grid;
  place-items:center;
}
.envelope-wrap{
  display:flex;
  justify-content:center;
  align-items:center;
  min-height:360px;
  padding-block:10px;
}
.envelope{
  position:relative;
  width:min(100%,520px);
  height:325px;
  perspective:1200px;
}
.flap{
  position:absolute;
  top:0;left:0;right:0;
  height:182px;
  background:linear-gradient(180deg,#ffe8f0,#ffd9e8);
  clip-path:polygon(0 0,100% 0,50% 100%);
  border-top-left-radius:18px;
  border-top-right-radius:18px;
  transform-origin:top center;
  transition:transform 1.25s ease;
  z-index:3;
  box-shadow:0 8px 22px rgba(232,169,194,.14);
}
.envelope.open .flap{transform:rotateX(180deg)}
.body-mail{
  position:absolute;
  bottom:0;left:0;right:0;
  height:235px;
  background:linear-gradient(180deg,#fff8fb,#fff1f6);
  border-radius:0 0 28px 28px;
  box-shadow:0 18px 42px rgba(0,0,0,.08);
  border:1px solid rgba(232,169,194,.15);
}
.letter{
  position:absolute;
  left:50%;
  transform:translateX(-50%) translateY(36px);
  width:min(86%,410px);
  min-height:240px;
  background:linear-gradient(180deg,#fffdfd,#fffafb);
  padding:28px 28px 24px;
  border-radius:22px;
  box-shadow:0 16px 36px rgba(0,0,0,.10);
  text-align:center;
  border:1px solid rgba(232,169,194,.18);
  transition:transform 1.25s ease;
}
.envelope.open .letter{transform:translateX(-50%) translateY(-110px)}
.letter-title{font-size:clamp(1.65rem,5vw,2.4rem)}
.letter p{
  line-height:1.95;
  color:var(--muted);
  margin-top:16px;
  max-width:100%;
  font-size:clamp(1rem,2vw,1.06rem);
}

.film-stage{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at top, rgba(255,241,247,.55), transparent 36%),
    linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,248,251,.80));
}
.film-stage::before{
  content:"";
  position:absolute;
  left:50%;
  top:-18px;
  transform:translateX(-50%);
  width:82%;
  height:380px;
  background:radial-gradient(ellipse at top, rgba(255,250,252,.92), rgba(255,250,252,0) 65%);
  filter:blur(8px);
  opacity:.86;
  pointer-events:none;
}
.film-stage::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.11;
  background-image:
    radial-gradient(circle at 20% 20%, #000 0.7px, transparent 0.8px),
    radial-gradient(circle at 80% 40%, #000 0.8px, transparent 0.9px),
    radial-gradient(circle at 40% 80%, #000 0.7px, transparent 0.8px);
  background-size:9px 9px, 11px 11px, 13px 13px;
  mix-blend-mode:multiply;
}
.film-light{
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(110deg, transparent 0%, rgba(255,255,255,.10) 40%, rgba(255,255,255,.24) 50%, rgba(255,255,255,.10) 60%, transparent 100%);
  transform:translateX(-100%);
  animation:lightSweep 9s ease-in-out infinite;
  z-index:1;
}
.grid{
  position:relative;
  z-index:2;
  display:grid;
  gap:18px;
}
.frame-card{
  position:relative;
  min-height:260px;
  border-radius:24px;
  overflow:hidden;
  box-shadow:0 20px 48px rgba(179,109,140,.22);
  border:1px solid rgba(255,255,255,.35);
}
.frame-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.frame-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(0,0,0,.08), rgba(0,0,0,.22));
  pointer-events:none;
}
.kicker{
  display:inline-flex;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  border:1px solid rgba(232,169,194,.24);
  color:var(--muted);
  font-size:.84rem;
}
.meta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border-radius:999px;
  background:#ffeef5;
  font-weight:600;
  color:#754f62;
  width:max-content;
  margin-top:14px;
}
.typed-block{margin-top:18px}
.typed-block p,.typed-block .quote{margin-top:18px}
.quote{
  padding:20px 22px;
  border-left:4px solid #f0a9c3;
  background:#fff6fa;
  border-radius:18px;
  line-height:1.95;
  color:#785567;
}
.note{
  font-size:.94rem;
  line-height:1.8;
  color:var(--muted);
  margin-top:16px;
}

.final-card{
  max-width:760px;
  margin:0 auto;
}
.final-text{
  margin-top:22px;
  font-size:clamp(2rem,6vw,3rem);
  text-align:center;
  font-family:Georgia,"Times New Roman",serif;
  color:#7a405a;
  opacity:0;
  transform:translateY(10px) scale(.96);
  transition:all .8s ease;
}
.final-text.show{
  opacity:1;
  transform:translateY(0) scale(1);
}
.heart-burst{
  display:inline-block;
  margin-left:8px;
  animation:heartPulse 1.5s ease-in-out infinite;
  transform-origin:center;
}

.footer{
  text-align:center;
  color:var(--muted);
  line-height:1.8;
  padding:4px 8px 0;
}
.footer .sig{
  margin-top:10px;
  font-family:Georgia,"Times New Roman",serif;
  color:#7c5b6b;
}

@keyframes float{
  0%{transform:translateY(0)}
  100%{transform:translateY(-120vh)}
}
@keyframes twinkle{
  0%,100%{transform:scale(.75);opacity:.3}
  50%{transform:scale(1.45);opacity:.9}
}
@keyframes drift{
  0%,100%{transform:translateY(0) translateX(0)}
  50%{transform:translateY(18px) translateX(10px)}
}
@keyframes lightSweep{
  0%{transform:translateX(-100%)}
  45%{transform:translateX(100%)}
  100%{transform:translateX(100%)}
}
@keyframes heartPulse{
  0%,100%{transform:scale(1); filter:drop-shadow(0 0 0 rgba(232,169,194,0))}
  50%{transform:scale(1.16); filter:drop-shadow(0 0 12px rgba(232,169,194,.45))}
}

@media (min-width:760px){
  .grid.two{grid-template-columns:1.15fr .95fr;align-items:start}
}
@media (max-width:560px){
  main{width:min(calc(100% - 16px), 940px);padding-top:16px}
  .section{padding:16px;border-radius:24px}
  .hero{min-height:72vh}
  .lead,.letter p{font-size:.98rem}
  .frame-card{min-height:220px}
  .btn{width:100%}
  .envelope{height:300px}
  .body-mail{height:220px}
  .flap{height:160px}
  .letter{width:min(88%,360px);padding:24px 22px}
}


/* Letter page fix */
.envelope-stage{
  min-height:82vh;
  display:grid;
  place-items:center;
}
.envelope-wrap{
  min-height:420px;
}
.envelope{
  width:min(100%, 640px) !important;
  height:360px !important;
}
.flap{
  height:190px !important;
}
.body-mail{
  height:255px !important;
  border-radius:0 0 30px 30px !important;
}
.letter{
  width:min(88%, 500px) !important;
  min-height:270px !important;
  padding:30px 34px 26px !important;
  transform:translateX(-50%) translateY(34px) !important;
}
.envelope.open .letter{
  transform:translateX(-50%) translateY(-120px) !important;
}
.letter p{
  max-width:100% !important;
  font-size:clamp(1.02rem, 1.9vw, 1.12rem) !important;
  line-height:1.95 !important;
  word-break:normal !important;
  overflow-wrap:normal !important;
  white-space:normal !important;
}
.letter-title{
  font-size:clamp(1.9rem, 4vw, 2.8rem) !important;
}
@media (max-width: 700px){
  .envelope{
    width:min(100%, 520px) !important;
    height:320px !important;
  }
  .flap{
    height:170px !important;
  }
  .body-mail{
    height:225px !important;
  }
  .letter{
    width:min(90%, 420px) !important;
    min-height:240px !important;
    padding:24px 24px 22px !important;
  }
}
@media (max-width: 560px){
  .envelope-wrap{
    min-height:360px !important;
  }
  .envelope{
    width:min(100%, 420px) !important;
    height:290px !important;
  }
  .flap{
    height:150px !important;
  }
  .body-mail{
    height:205px !important;
  }
  .letter{
    width:min(92%, 340px) !important;
    min-height:215px !important;
    padding:22px 18px 18px !important;
    transform:translateX(-50%) translateY(28px) !important;
  }
  .envelope.open .letter{
    transform:translateX(-50%) translateY(-92px) !important;
  }
  .letter p{
    font-size:0.98rem !important;
    line-height:1.85 !important;
  }
}