:root{
  --rose:#ff7eb3; --rose2:#ff4d94; --gold:#ffd9a8;
  --serif:'Playfair Display',Georgia,serif;
  --script:'Great Vibes',cursive;
  --body:'Cormorant Garamond',Georgia,serif;
  --sans:'Montserrat',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden;background:#07020d;color:#fff;font-family:var(--body);-webkit-tap-highlight-color:transparent;overscroll-behavior:none}
button{font-family:inherit}
[hidden]{display:none!important}
#app{position:fixed;inset:0;z-index:2}

/* ---------- fondo aurora ---------- */
#bg{position:fixed;inset:0;z-index:0;background:radial-gradient(120% 120% at 50% 0%,#2b0c3b,#13041f 55%,#07020d)}
#bg i{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;animation:drift 20s ease-in-out infinite alternate}
#bg .b1{width:55vmax;height:55vmax;left:-15vmax;bottom:-20vmax;background:#a3236a}
#bg .b2{width:50vmax;height:50vmax;right:-15vmax;top:-18vmax;background:#2c3fa8;animation-duration:26s}
#bg .b3{width:36vmax;height:36vmax;left:30%;top:30%;background:#5a1f8c;opacity:.35;animation-duration:32s}
@keyframes drift{to{transform:translate(6vmax,-4vmax) scale(1.15)}}

#petals{position:fixed;inset:0;width:100%;height:100%;z-index:1;pointer-events:none;transition:opacity 1s}
#petals.off{opacity:0}

/* ---------- escenas ---------- */
.scene{position:absolute;inset:0;opacity:0;visibility:hidden;pointer-events:none;overflow:hidden;transition:opacity 1.1s ease,visibility 0s 1.1s}
.scene.active{opacity:1;visibility:visible;pointer-events:auto;transition:opacity 1.1s ease}
.scene.opaque{background:#000}
canvas.full{position:absolute;inset:0;width:100%;height:100%;display:block}
canvas.grab{cursor:grab;touch-action:none}
canvas.grab:active{cursor:grabbing}
.center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;gap:16px}

/* ---------- tipografía ---------- */
.eyebrow{font-family:var(--sans);font-size:11px;letter-spacing:.38em;color:#ffc9e1;opacity:.9;font-weight:300}
.hero-title{font-family:var(--serif);font-weight:700;font-style:italic;font-size:clamp(34px,7.4vw,78px);line-height:1.08;text-shadow:0 0 30px rgba(255,150,205,.65),0 0 70px rgba(255,100,170,.35);background:linear-gradient(180deg,#fff,#ffd4ea);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 18px rgba(255,130,190,.45))}
.hero-title span,.hero-title em{display:block}
.hero-title em{font-weight:500;font-size:.82em}
.hero-title.big{font-size:clamp(46px,10vw,104px)}
.hero-title.title-sm{font-size:clamp(28px,5.2vw,48px)}
.sub{font-family:var(--body);font-style:italic;font-size:clamp(17px,2.6vw,22px);color:#ffe3f0;opacity:.92}
.note{font-family:var(--body);font-style:italic;font-size:clamp(16px,2.4vw,20px);color:#ffd6ea;max-width:520px;line-height:1.5}

/* ---------- botones ---------- */
.btn{font-family:var(--sans);text-transform:uppercase;letter-spacing:.24em;font-size:12px;font-weight:500;color:#fff;padding:15px 32px;border-radius:999px;border:1px solid rgba(255,190,230,.55);background:linear-gradient(135deg,rgba(255,126,179,.38),rgba(140,80,220,.5));cursor:pointer;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 0 24px rgba(255,126,179,.35);transition:transform .3s,box-shadow .3s,opacity .8s}
.btn:hover:not(:disabled){transform:translateY(-2px) scale(1.04);box-shadow:0 0 38px rgba(255,126,179,.75)}
.btn:disabled{opacity:.5;cursor:default}
.btn.pulse{animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 44px rgba(255,126,179,.95);transform:scale(1.05)}}
.btn.bottom{position:absolute;bottom:max(6vh,28px);left:50%;transform:translateX(-50%)}
.btn.bottom:hover:not(:disabled){transform:translateX(-50%) translateY(-2px) scale(1.04)}
#btn2,#btn3,#btn9,#btn10{opacity:0;pointer-events:none}
#btn2.show,#btn3.show,#btn9.show,#btn10.show{opacity:1;pointer-events:auto}
.link{background:none;border:0;color:#ffd0e6;opacity:.65;font-family:var(--sans);font-size:11px;letter-spacing:.16em;text-decoration:underline;cursor:pointer;text-transform:lowercase}
.link:hover{opacity:1}
.round{position:fixed;z-index:30;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:linear-gradient(135deg,#d96fb0,#6b4bc2);color:#fff;font-size:17px;cursor:pointer;box-shadow:0 0 16px rgba(255,126,179,.45)}
.round.tl-btn{top:14px;left:14px}
.round.br-btn{bottom:14px;right:14px}

/* ---------- cuenta regresiva ---------- */
.cd{display:flex;align-items:flex-start;justify-content:center;gap:clamp(6px,1.6vw,16px);margin:6px 0}
.cd .sep{font-family:var(--serif);font-size:clamp(24px,4vw,40px);opacity:.55;margin-top:14px}
.box{min-width:clamp(62px,13vw,104px);padding:14px 8px 10px;border-radius:16px;background:linear-gradient(160deg,rgba(255,255,255,.16),rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 10px 40px rgba(0,0,0,.35),inset 0 0 22px rgba(255,150,200,.12)}
.box.wide{min-width:clamp(82px,17vw,130px)}
.box b{display:block;font-family:var(--serif);font-weight:500;font-size:clamp(30px,6.4vw,56px);line-height:1;text-shadow:0 0 18px rgba(255,170,215,.9)}
.box small{display:block;margin-top:8px;font-family:var(--sans);font-size:9px;letter-spacing:.28em;opacity:.7}
.box b.pop{animation:pop .35s ease}
@keyframes pop{40%{transform:scale(1.12)}}

/* ---------- menú 1 ---------- */
.floaty{animation:floaty 6s ease-in-out infinite}
@keyframes floaty{50%{transform:translateY(-12px)}}
.tilt{transition:transform .25s ease-out;will-change:transform;perspective:800px}
.menu-card{width:min(86vw,440px);padding:34px 28px 30px;border-radius:26px;background:linear-gradient(160deg,rgba(60,24,86,.62),rgba(24,8,40,.7));border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 30px 80px rgba(0,0,0,.55),0 0 60px rgba(190,90,220,.22),inset 0 0 40px rgba(255,150,220,.08);display:flex;flex-direction:column;align-items:center;gap:14px}
.menu-title{font-family:var(--serif);font-weight:700;font-size:clamp(34px,8vw,52px);text-shadow:0 0 26px rgba(255,170,225,.85);color:#fff3fa}
.duo{width:min(70vw,250px);min-height:130px;display:flex;align-items:center;justify-content:center}
.duo-svg,.duo img{width:100%;height:auto;max-height:200px;object-fit:contain;filter:drop-shadow(0 8px 14px rgba(0,0,0,.4))}
.hl,.hr{transform-box:fill-box;transform-origin:50% 100%}
.hl{animation:hugL 3.4s ease-in-out infinite}
.hr{animation:hugR 3.4s ease-in-out infinite}
@keyframes hugL{50%{transform:rotate(5deg) translateX(4px)}}
@keyframes hugR{50%{transform:rotate(-5deg) translateX(-4px)}}
.mh{transform-box:fill-box;transform-origin:50% 100%;animation:rise 3.4s ease-in infinite;opacity:0}
.m2{animation-delay:1.1s}.m3{animation-delay:2.1s}
@keyframes rise{0%{opacity:0;transform:translateY(14px) scale(.5)}30%{opacity:1}100%{opacity:0;transform:translateY(-26px) scale(1.1)}}
.tag{font-family:var(--sans);font-size:11px;letter-spacing:.34em;color:#f1d6ff}
.btn-start{margin-top:6px;padding:13px 40px;animation:pulse 2.6s ease-in-out infinite}

/* ---------- árbol ---------- */
.tree-ui{position:absolute;z-index:3;left:6%;top:50%;transform:translateY(-50%);width:44%;display:flex;flex-direction:column;align-items:center;gap:22px;text-align:center}
.bday{font-family:var(--serif);font-weight:700;line-height:1.18;opacity:0}
.bday span{display:block;font-size:clamp(20px,3vw,34px);letter-spacing:.14em;color:#ffe3ef}
.bday strong{display:block;font-size:clamp(26px,4.4vw,56px);font-style:italic;background:linear-gradient(90deg,#ffd2e6,#ff8fbf,#ffe0b0);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 16px rgba(255,120,185,.6))}
.scene.active .bday{animation:fadeUp 1.6s .8s both}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.frame{position:relative;width:min(300px,24vw,44vh);aspect-ratio:4/5;padding:11px;border-radius:10px;background:linear-gradient(135deg,#fff1cf,#d9a85a 35%,#fff0c8 55%,#c8923f);box-shadow:0 18px 50px rgba(0,0,0,.6),0 0 38px rgba(255,200,130,.35);transform:rotate(-2deg);opacity:0}
.scene.active .frame{animation:fadeUp 1.6s 2.2s both}
.frame::after{content:"";position:absolute;inset:0;border-radius:10px;background:linear-gradient(115deg,transparent 40%,rgba(255,255,255,.55) 50%,transparent 60%);background-size:250% 100%;animation:shine 5s 4s linear infinite;pointer-events:none}
@keyframes shine{from{background-position:150% 0}to{background-position:-100% 0}}
.frame-in{width:100%;height:100%;background:#fff7f0;padding:7px;border-radius:5px;box-shadow:inset 0 0 12px rgba(0,0,0,.3)}
.frame-in img{width:100%;height:100%;object-fit:cover;border-radius:3px;display:block}
.frame-in .ph{width:100%;height:100%;border-radius:3px;background:linear-gradient(160deg,#ffd5e6,#e8b8ff);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#a0305f;gap:6px}
.frame-in .ph span{font-size:44px}.frame-in .ph small{font-family:var(--sans);font-size:11px;letter-spacing:.14em;text-align:center}
.frame .c{position:absolute;font-style:normal;font-size:22px;color:#fff;text-shadow:0 0 10px #ff8fbf;animation:twinkle 2.6s ease-in-out infinite}
.c.tl{top:-12px;left:-10px}.c.tr{top:-12px;right:-10px;animation-delay:.6s}.c.bl{bottom:-12px;left:-10px;animation-delay:1.2s}.c.br{bottom:-12px;right:-10px;animation-delay:1.8s}
@keyframes twinkle{50%{transform:scale(1.35) rotate(25deg);opacity:.7}}
#btn2{margin-top:2px}

/* ---------- corazón azul ---------- */
.neon{position:absolute;top:max(7vh,36px);left:0;right:0;text-align:center;font-family:var(--script);font-weight:400;font-size:clamp(46px,9vw,92px);color:#e8f6ff;text-shadow:0 0 8px #7cc6ff,0 0 22px #2f8cff,0 0 48px #1666ff,0 0 90px #1666ff;animation:flicker 5s infinite;letter-spacing:.04em}
@keyframes flicker{0%,18%,22%,62%,64%,100%{opacity:1}20%,63%{opacity:.78}}

/* ---------- galaxia ---------- */
.gtimer{position:absolute;top:14px;right:14px;z-index:5;display:flex;gap:8px;align-items:center;padding:8px 16px;border-radius:999px;background:rgba(255,40,120,.18);border:1px solid rgba(255,120,190,.6);backdrop-filter:blur(6px);box-shadow:0 0 18px rgba(255,60,150,.4);font-family:var(--sans)}
.gtimer b{font-weight:500;letter-spacing:.14em;font-size:15px;font-variant-numeric:tabular-nums}
.gtimer span{color:#ff8fc4}
.gtimer.warn{animation:pulse 1s infinite}
.ghint{position:absolute;bottom:18px;left:0;right:0;text-align:center;font-family:var(--sans);font-size:11px;letter-spacing:.28em;color:#ffc4e2;opacity:.65;pointer-events:none;animation:fadeHint 9s forwards}
@keyframes fadeHint{0%,70%{opacity:.65}100%{opacity:0}}

/* ---------- regalo ---------- */
.gift-center{gap:6px}
.gift-wrap{width:min(62vw,300px);cursor:pointer;animation:floaty 4s ease-in-out infinite;filter:drop-shadow(0 20px 30px rgba(0,0,0,.5));-webkit-user-select:none;user-select:none}
.gift-wrap svg{width:100%;height:auto;display:block;overflow:visible}
#giftLid{transform-box:fill-box;transform-origin:20% 100%;transition:transform 1.1s cubic-bezier(.3,1.4,.5,1),opacity 1s .4s}
#giftSvg.open #giftLid{transform:translate(-14px,-92px) rotate(-26deg);opacity:0}
#giftGlow{transform-box:fill-box;transform-origin:50% 50%;animation:glowPulse 3s ease-in-out infinite;transition:transform 1.4s}
#giftSvg.open #giftGlow{transform:scale(2.6);animation:none}
@keyframes glowPulse{50%{transform:scale(1.12);opacity:.85}}
.gift-hint{animation:blink 2.2s ease-in-out infinite;transition:opacity .6s}
.gift-hint.hide{opacity:0;animation:none}
@keyframes blink{50%{opacity:.45}}

/* ---------- polaroids ---------- */
.bokeh i{position:absolute;border-radius:50%;filter:blur(26px);background:radial-gradient(circle,rgba(255,150,190,.55),rgba(255,150,190,0));animation:bk 9s ease-in-out infinite alternate}
.bokeh i:nth-child(1){width:34vmax;height:34vmax;left:-6vmax;top:12%}
.bokeh i:nth-child(2){width:26vmax;height:26vmax;right:-4vmax;top:4%;animation-delay:2s}
.bokeh i:nth-child(3){width:30vmax;height:30vmax;right:18%;bottom:-12vmax;animation-delay:4s}
.bokeh i:nth-child(4){width:20vmax;height:20vmax;left:22%;bottom:-6vmax;animation-delay:1s}
.bokeh i:nth-child(5){width:16vmax;height:16vmax;left:42%;top:-6vmax;animation-delay:3s}
@keyframes bk{to{transform:translate(3vmax,-2vmax) scale(1.2);opacity:.6}}
#polWrap{position:absolute;inset:0;pointer-events:none}
.pol{position:absolute;width:clamp(96px,12.5vw,158px);padding:8px 8px 22px;background:#fffaf4;border-radius:3px;box-shadow:0 14px 34px rgba(0,0,0,.55);animation:polFloat 7s ease-in-out infinite;opacity:0}
.scene.active .pol{opacity:1;transition:opacity 1.2s .5s}
.pol .ph{aspect-ratio:1;background:linear-gradient(150deg,#ffd0e2,#d9b1ff);overflow:hidden;display:flex;align-items:center;justify-content:center;color:#fff;font-size:30px}
.pol img{width:100%;height:100%;object-fit:cover;display:block}
.pol figcaption{position:absolute;bottom:4px;left:0;right:0;text-align:center;font-family:var(--script);font-size:15px;color:#7a3a5a}
.p1{left:4%;top:9%;--r:-8deg}.p2{left:9%;top:39%;--r:5deg;animation-delay:-2s}.p3{left:4.5%;top:66%;--r:-4deg;animation-delay:-4s}
.p4{right:4%;top:7%;--r:7deg;animation-delay:-1s}.p5{right:9%;top:38%;--r:-6deg;animation-delay:-3s}.p6{right:4%;top:66%;--r:4deg;animation-delay:-5s}
@keyframes polFloat{0%,100%{transform:rotate(var(--r)) translateY(0)}50%{transform:rotate(calc(var(--r) * -.4)) translateY(-10px)}}

/* ---------- cartas ---------- */
.letter-card{width:min(92vw,640px);max-height:58vh;padding:26px 26px 20px;border-radius:20px;background:linear-gradient(160deg,rgba(45,16,66,.72),rgba(20,6,34,.78));border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 24px 70px rgba(0,0,0,.55),inset 0 0 30px rgba(255,150,210,.07);display:flex}
.letter-body{overflow-y:auto;width:100%;text-align:left;font-size:clamp(17px,2.5vw,22px);line-height:1.6;color:#fff0f7;scrollbar-width:thin;scrollbar-color:#ff8fc4 transparent;padding-right:6px}
.letter-body p{margin-bottom:.9em;white-space:pre-wrap;min-height:1em}
.letter-body p.sign{font-family:var(--script);font-size:1.5em;color:#ffc2de;margin-top:.6em;text-align:right;line-height:1.3}
.letter-body p.typing::after{content:"▍";color:#ff8fc4;animation:caret .8s steps(1) infinite}
@keyframes caret{50%{opacity:0}}
.letter-actions{display:flex;flex-direction:column;align-items:center;gap:10px;min-height:76px;justify-content:flex-start}
.letter-actions .btn-next{padding:13px 30px}
.scene.active .letter-card{animation:fadeUp 1.2s .3s both}

/* ---------- final ---------- */
.lock-ico{font-size:44px;filter:drop-shadow(0 0 16px rgba(255,150,210,.7));animation:floaty 4s ease-in-out infinite}

/* ---------- flash y dev ---------- */
#flash{position:fixed;inset:0;z-index:60;pointer-events:none;opacity:0;background:radial-gradient(circle at 50% 50%,#fff 0,#ffd9f1 40%,#d08cff 100%)}
#dev{position:fixed;bottom:4px;left:50%;transform:translateX(-50%);z-index:99;display:flex;gap:3px;flex-wrap:wrap;justify-content:center;max-width:90vw}
#dev button{font:11px monospace;padding:4px 7px;background:#000a;color:#fff;border:1px solid #fff4;border-radius:5px;cursor:pointer}

/* ---------- móvil ---------- */
@media (max-width:820px){
  .tree-ui{left:0;right:0;top:3.5%;transform:none;width:100%;gap:14px;padding:0 14px}
  .bday span{font-size:clamp(15px,4.6vw,22px)}
  .bday strong{font-size:clamp(22px,7.6vw,38px)}
  .frame{width:min(54vw,30vh*.8,230px)}
  #btn2{position:fixed;bottom:14px;left:50%;transform:translateX(-50%);z-index:5}
  #btn2:hover:not(:disabled){transform:translateX(-50%) scale(1.04)}
  .pol{width:24vw;padding:5px 5px 15px}
  .pol figcaption{font-size:11px}
  .p1{left:2%;top:3%}.p2{left:37%;top:1.5%}.p3{left:72%;top:3%;right:auto}
  .p4{left:2%;right:auto;top:auto;bottom:3%}.p5{left:37%;right:auto;top:auto;bottom:1.5%}.p6{left:72%;right:auto;top:auto;bottom:3%}
  .letter-card{padding:20px 18px 14px;max-height:56vh}
  .gtimer{top:12px;right:12px}
}
@media (prefers-reduced-motion:reduce){.floaty,.hl,.hr{animation:none}}