@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Playfair+Display:wght@700&display=swap');

:root{
  --bg:#0c0913; --bg2:#170d1d; --card:rgba(24,17,32,.68); --line:rgba(255,255,255,.10);
  --text:#fff8fc; --muted:#cbbfca; --pink:#ff5f9e; --pink2:#ff8bb8; --violet:#a675ff;
  --good:#7ce6b7; --bad:#ff8b9d; --shadow:0 24px 80px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Manrope,system-ui,sans-serif}
body{min-height:100svh;overflow-x:hidden}
button{font:inherit}
.bg{position:fixed;inset:0;overflow:hidden;background:radial-gradient(circle at 50% -10%,#31162c 0,#140d1a 42%,#09070d 100%);z-index:-2}
.orb{position:absolute;border-radius:50%;filter:blur(55px);opacity:.4;animation:float 10s ease-in-out infinite}
.orb-1{width:280px;height:280px;background:#ff3f90;top:-80px;left:-100px}.orb-2{width:360px;height:360px;background:#7845ff;right:-150px;top:28%;animation-delay:-3s}.orb-3{width:240px;height:240px;background:#ff7daf;bottom:-100px;left:20%;animation-delay:-6s}
@keyframes float{50%{transform:translate(24px,-22px) scale(1.08)}}
.stars span{position:absolute;width:2px;height:2px;background:white;border-radius:50%;opacity:.35;animation:twinkle 2.8s infinite alternate}
@keyframes twinkle{to{opacity:.9;transform:scale(1.7)}}
.app{min-height:100svh}
.screen{display:none;min-height:100svh;padding:24px 18px;align-items:center;justify-content:center;animation:screenIn .55s cubic-bezier(.2,.8,.2,1)}
.screen.active{display:flex}
@keyframes screenIn{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
.glass{background:linear-gradient(145deg,rgba(255,255,255,.095),rgba(255,255,255,.04));border:1px solid var(--line);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:var(--shadow)}
.hero{width:min(560px,100%);border-radius:32px;padding:44px 30px;text-align:center;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;inset:auto -20% -50% -20%;height:220px;background:radial-gradient(ellipse,rgba(255,95,158,.18),transparent 65%)}
.badge{display:inline-flex;padding:8px 13px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid var(--line);font-size:12px;letter-spacing:.18em;color:#e8dce6}
.big-heart{font-size:56px;filter:drop-shadow(0 8px 24px rgba(255,64,139,.35));animation:beat 1.6s ease-in-out infinite;margin:20px 0 10px}
@keyframes beat{0%,100%{transform:scale(1)}15%{transform:scale(1.1)}30%{transform:scale(1)}45%{transform:scale(1.06)}}
.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:11px;font-weight:800;color:var(--pink2);margin:0 0 10px}
h1,h2,p{position:relative;z-index:1}
h1{font-family:"Playfair Display",Georgia,serif;font-size:clamp(36px,8vw,62px);line-height:.98;margin:8px 0 20px}
h1 span{color:var(--pink2)}
h2{font-family:"Playfair Display",Georgia,serif;font-size:clamp(28px,7vw,42px);line-height:1.08;margin:8px 0 18px}
.lead,.muted{color:var(--muted);line-height:1.7}.lead{font-size:15px;margin:0 auto 28px;max-width:440px}
.primary,.ghost{border:0;cursor:pointer;color:white;transition:.25s ease}
.primary{width:100%;max-width:360px;margin:auto;background:linear-gradient(135deg,var(--pink),#d85eff 72%);padding:16px 18px;border-radius:17px;font-weight:800;display:flex;align-items:center;justify-content:center;gap:12px;box-shadow:0 12px 30px rgba(230,66,157,.26)}
.primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(230,66,157,.34)}.primary:active{transform:scale(.98)}
.primary b{font-size:21px}.tiny{font-size:11px;color:#918491;margin:17px 0 0}
.topbar{width:min(620px,100%);position:fixed;top:max(18px,env(safe-area-inset-top));left:50%;transform:translateX(-50%);padding:0 18px;display:flex;align-items:center;gap:12px;z-index:8}
.ghost{background:rgba(255,255,255,.07);border:1px solid var(--line);border-radius:14px}
.icon-btn{width:44px;height:44px;font-size:20px}.mini{width:42px;height:42px;font-size:18px}
.progress{height:7px;flex:1;background:rgba(255,255,255,.09);border-radius:999px;overflow:hidden}.progress i{display:block;height:100%;width:25%;background:linear-gradient(90deg,var(--pink),var(--violet));border-radius:inherit;transition:.45s ease}
#progressText{font-size:12px;color:var(--muted);min-width:34px}
.card{width:min(560px,100%);border-radius:30px;padding:34px 24px;text-align:center}
.q-icon{width:72px;height:72px;border-radius:24px;display:grid;place-items:center;margin:0 auto 20px;background:linear-gradient(145deg,rgba(255,95,158,.18),rgba(166,117,255,.12));border:1px solid var(--line);font-size:34px}
.answers{display:grid;gap:11px;margin-top:24px}
.answer{width:100%;border:1px solid var(--line);background:rgba(255,255,255,.055);color:white;border-radius:16px;padding:15px 16px;cursor:pointer;text-align:left;font-weight:700;transition:.2s}
.answer:hover{background:rgba(255,255,255,.1);transform:translateY(-1px)}.answer.correct{border-color:rgba(124,230,183,.6);background:rgba(124,230,183,.12)}.answer.wrong{border-color:rgba(255,139,157,.65);background:rgba(255,139,157,.11);animation:shake .3s}
@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.feedback{min-height:20px;font-size:13px;color:var(--muted);margin:14px 0 -4px}
.center{text-align:center}
.envelope{position:relative;width:260px;height:175px;margin:32px auto 6px;background:transparent;border:0;cursor:pointer;perspective:800px;filter:drop-shadow(0 18px 25px rgba(0,0,0,.35))}
.env-back,.env-front,.env-flap,.letter,.seal{position:absolute;display:block}
.env-back{inset:0;background:linear-gradient(135deg,#c44d77,#8e3b64);border-radius:10px}
.env-front{inset:0;border-radius:10px;overflow:hidden;z-index:3;background:linear-gradient(145deg,#d65b88,#a74170);clip-path:polygon(0 34%,50% 72%,100% 34%,100% 100%,0 100%)}
.env-flap{inset:0;z-index:4;background:linear-gradient(145deg,#f07ea5,#be4f7c);clip-path:polygon(0 0,100% 0,50% 62%);transform-origin:top;transition:.7s cubic-bezier(.2,.7,.1,1)}
.letter{left:20px;right:20px;bottom:15px;height:140px;background:#fff9f4;color:#6c3150;border-radius:8px;padding-top:24px;z-index:2;transition:.85s cubic-bezier(.2,.75,.15,1);font-family:Georgia,serif}
.seal{z-index:5;left:50%;top:70px;transform:translate(-50%,-50%);width:42px;height:42px;border-radius:50%;background:#7d244f;color:#ffd2e2;display:grid;place-items:center;box-shadow:0 5px 10px rgba(0,0,0,.2);transition:.3s}
.envelope.open .env-flap{transform:rotateX(180deg);z-index:1}.envelope.open .letter{transform:translateY(-95px)}.envelope.open .seal{opacity:0;transform:translate(-50%,-50%) scale(.4)}
.tap-hint{color:#9f91a0;font-size:12px}
.letter-card{width:min(640px,100%);padding:18px;border-radius:30px}
.paper{background:linear-gradient(#fffdf9,#fff7f3);color:#4a3942;border-radius:22px;padding:34px 26px 28px;position:relative;overflow:hidden;box-shadow:inset 0 0 0 1px rgba(100,60,70,.06)}
.paper:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 27px,rgba(112,76,90,.05) 28px);pointer-events:none}
.paper h2{color:#6e294b}.paper p{line-height:1.75;font-size:14px}.paper .eyebrow{color:#b44b79}.paper-heart{font-size:42px;color:#d35f8e;margin-bottom:8px}.sign{font-family:"Playfair Display",serif;font-size:18px!important;color:#8c3f64;margin-top:26px}
.letter-card .primary{margin-top:16px}
#puzzle{padding-top:90px;align-items:flex-start}.puzzle-top{position:fixed}.puzzle-title{flex:1;display:flex;flex-direction:column}.puzzle-title small{font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:#9f91a0}.puzzle-title strong{font-size:15px}
.puzzle-card{width:min(610px,100%);border-radius:28px;padding:22px;margin:auto;text-align:center}
.puzzle-copy{font-size:13px;margin:2px auto 18px;max-width:470px}
.puzzle-wrap{position:relative;width:min(100%,480px);aspect-ratio:1/1;margin:auto;border-radius:20px;overflow:hidden;background:#110c17;border:1px solid rgba(255,255,255,.12);box-shadow:0 16px 35px rgba(0,0,0,.3)}
.puzzle-board{position:absolute;inset:0;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:3px;padding:3px;background:rgba(255,255,255,.08);z-index:2}
.tile{position:relative;border:0;cursor:grab;border-radius:4px;background-image:url("assets/final-photo.jpg");background-size:300% 300%;filter:blur(12px) saturate(.65) brightness(.82);transform:scale(1.035);transition:transform .18s,outline .18s,filter .8s;touch-action:none}
.tile:active{cursor:grabbing}.tile.selected{outline:3px solid var(--pink2);z-index:3;transform:scale(.96);filter:blur(8px) saturate(.8)}
.tile.solved{filter:blur(0) saturate(1) brightness(1);transform:scale(1)}
.reveal-photo{position:absolute;inset:0;z-index:4;opacity:0;pointer-events:none;transition:opacity 1s ease}.reveal-photo.show{opacity:1}.reveal-photo img{width:100%;height:100%;object-fit:cover;display:block}.shine{position:absolute;inset:0;background:linear-gradient(110deg,transparent 25%,rgba(255,255,255,.24) 45%,transparent 65%);transform:translateX(-120%)}.reveal-photo.show .shine{animation:shine 1.5s .3s ease forwards}@keyframes shine{to{transform:translateX(120%)}}
.puzzle-meta{display:flex;justify-content:space-between;color:#a99ba9;font-size:12px;margin-top:14px}.puzzle-meta b{color:white}
.finale-card{width:min(590px,100%);border-radius:34px;padding:32px 24px;text-align:center;position:relative;z-index:3}
.final-heart{font-size:42px;color:var(--pink);animation:beat 1.6s infinite}.finale-card h1{font-size:clamp(44px,11vw,72px);margin:8px 0;color:#fff}.final-sub{font-size:19px;color:var(--pink2);font-weight:800}
.final-photo{width:min(330px,78vw);aspect-ratio:1/1;margin:22px auto;border-radius:28px;padding:7px;background:linear-gradient(135deg,var(--pink),var(--violet));box-shadow:0 22px 55px rgba(0,0,0,.4);transform:rotate(-1.5deg)}.final-photo img{width:100%;height:100%;object-fit:cover;border-radius:22px;display:block}
.final-text{color:var(--muted);line-height:1.65;max-width:430px;margin:18px auto}.replay{padding:12px 18px;color:#d9cbd6}
.confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:2}.confetti i{position:absolute;top:-30px;width:9px;height:15px;border-radius:2px;animation:fall linear forwards}@keyframes fall{to{transform:translate3d(var(--drift),110vh,0) rotate(760deg)}}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:rgba(18,13,24,.92);border:1px solid var(--line);padding:11px 16px;border-radius:999px;font-size:12px;opacity:0;pointer-events:none;transition:.3s;z-index:30}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:520px){.screen{padding:18px 14px}.hero{padding:34px 20px;border-radius:26px}.card{padding:28px 18px}.letter-card{padding:10px}.paper{padding:28px 20px 24px}.paper p{font-size:13.5px}.puzzle-card{padding:14px}.puzzle-copy{font-size:12px}.puzzle-wrap{border-radius:16px}.finale-card{padding:27px 17px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}}


/* ===== Puzzle v2: real interlocking jigsaw, mobile-first ===== */
#puzzle{padding-top:88px;align-items:flex-start}
.puzzle-card{width:min(680px,100%);padding:20px;border-radius:28px}
.puzzle-copy{font-size:13px;line-height:1.55;margin:0 auto 16px;max-width:560px}
.puzzle-copy b{color:#fff}

.jigsaw-board-wrap{
  position:relative;
  width:min(100%,480px);
  aspect-ratio:1/1;
  margin:0 auto;
  border-radius:24px;
  overflow:hidden;
  background:#100b16;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 18px 50px rgba(0,0,0,.38);
}
.blur-secret{
  position:absolute;
  inset:-34px;
  background:
    linear-gradient(rgba(11,8,15,.60),rgba(11,8,15,.60)),
    url("assets/final-photo.jpg") center/cover no-repeat;
  filter:blur(34px) grayscale(1) brightness(.45) contrast(.7);
  transform:scale(1.18);
  opacity:.65;
}
.blur-secret:after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(15,10,19,.52);
}

.jigsaw-board{
  position:absolute;
  inset:0;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  grid-template-rows:repeat(3,1fr);
  padding:14px;
  z-index:2;
}
.drop-slot{
  position:relative;
  min-width:0;
  min-height:0;
  overflow:visible;
  cursor:pointer;
  -webkit-tap-highlight-color:transparent;
}
.drop-slot svg{
  position:absolute;
  width:140%;
  height:140%;
  left:-20%;
  top:-20%;
  overflow:visible;
  filter:drop-shadow(0 2px 6px rgba(0,0,0,.24));
}
.drop-slot path{
  fill:rgba(255,255,255,.035);
  stroke:rgba(255,255,255,.22);
  stroke-width:2;
  stroke-dasharray:5 5;
  vector-effect:non-scaling-stroke;
  transition:.25s ease;
}
.drop-slot.target path{
  fill:rgba(255,95,158,.13);
  stroke:rgba(255,139,184,.85);
  stroke-dasharray:none;
  filter:drop-shadow(0 0 6px rgba(255,95,158,.4));
}
.drop-slot.wrong{animation:slotWrong .34s}
@keyframes slotWrong{
  25%{transform:translateX(-5px)}
  75%{transform:translateX(5px)}
}
.drop-slot.filled path{
  stroke:rgba(255,255,255,.08);
  stroke-dasharray:none;
  fill:rgba(255,255,255,.015);
}

.placed-piece{
  position:absolute;
  width:140%;
  height:140%;
  left:-20%;
  top:-20%;
  z-index:4;
  pointer-events:none;
  animation:pieceSnap .34s cubic-bezier(.2,.9,.3,1.25);
  filter:drop-shadow(0 5px 7px rgba(0,0,0,.38));
}
@keyframes pieceSnap{
  from{transform:scale(.72);opacity:.2}
  to{transform:scale(1);opacity:1}
}
.placed-piece path{
  fill:url(#pieceGrad);
  stroke:rgba(255,255,255,.26);
  stroke-width:1.4;
  vector-effect:non-scaling-stroke;
}
.placed-piece .piece-question{fill:rgba(255,255,255,.85);font:700 22px Manrope,sans-serif}

.piece-tray{
  width:min(100%,560px);
  min-height:190px;
  margin:18px auto 0;
  display:grid;
  grid-template-columns:repeat(5,minmax(52px,1fr));
  gap:10px 6px;
  align-items:center;
  justify-items:center;
  padding:14px 10px;
  border-radius:22px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.07);
}
.jigsaw-piece{
  width:min(92px,17vw);
  aspect-ratio:1/1;
  border:0;
  padding:0;
  background:transparent;
  cursor:grab;
  touch-action:none;
  -webkit-tap-highlight-color:transparent;
  transition:transform .18s ease,filter .18s ease,opacity .18s ease;
  filter:drop-shadow(0 7px 8px rgba(0,0,0,.32));
}
.jigsaw-piece:active{cursor:grabbing}
.jigsaw-piece:hover{transform:translateY(-3px) rotate(-1deg)}
.jigsaw-piece.selected{
  transform:translateY(-5px) scale(1.08);
  filter:drop-shadow(0 0 10px rgba(255,95,158,.65));
}
.jigsaw-piece svg{width:100%;height:100%;overflow:visible}
.jigsaw-piece path{
  fill:url(#pieceGrad);
  stroke:rgba(255,255,255,.28);
  stroke-width:1.5;
  vector-effect:non-scaling-stroke;
}
.jigsaw-piece .piece-question{
  fill:rgba(255,255,255,.92);
  font:800 22px Manrope,sans-serif;
  pointer-events:none;
}
.jigsaw-piece.used{
  opacity:0;
  transform:scale(.2);
  pointer-events:none;
}

.mobile-help{
  width:min(100%,520px);
  margin:13px auto 0;
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:8px;
}
.mobile-help span{
  font-size:11px;
  color:#b9aaba;
  padding:7px 10px;
  border:1px solid rgba(255,255,255,.07);
  background:rgba(255,255,255,.035);
  border-radius:999px;
}
#puzzleStatus{transition:.2s}
#puzzleStatus.good{color:#9ff0ca}
#puzzleStatus.bad{color:#ff9aaa}

.jigsaw-board-wrap .reveal-photo{
  position:absolute;inset:0;z-index:10;opacity:0;pointer-events:none;transition:opacity 1.05s ease
}
.jigsaw-board-wrap .reveal-photo.show{opacity:1}
.jigsaw-board-wrap .reveal-photo img{width:100%;height:100%;object-fit:cover;display:block}
.jigsaw-board-wrap .shine{position:absolute;inset:0;background:linear-gradient(110deg,transparent 25%,rgba(255,255,255,.24) 45%,transparent 65%);transform:translateX(-120%)}
.jigsaw-board-wrap .reveal-photo.show .shine{animation:shine 1.5s .3s ease forwards}

@media(max-width:520px){
  #puzzle{padding:82px 10px 18px}
  .puzzle-card{padding:13px 10px 15px;border-radius:23px}
  .puzzle-copy{font-size:11.5px;margin-bottom:10px}
  .jigsaw-board-wrap{width:min(100%,390px);border-radius:19px}
  .jigsaw-board{padding:10px}
  .piece-tray{
    grid-template-columns:repeat(5,1fr);
    gap:8px 2px;
    min-height:150px;
    padding:11px 5px;
    margin-top:12px;
  }
  .jigsaw-piece{width:min(72px,18vw)}
  .puzzle-meta{font-size:11px;margin-top:10px;padding:0 2px}
  .mobile-help{margin-top:9px}
}