:root{
  --font:Poppins,"Segoe UI",system-ui,sans-serif;
  --hand:"Dancing Script","Brush Script MT",cursive;
  --bg:#111c2d;--bg2:#1b2b40;--ink:#edf3f8;--muted:#afc0d1;
  --blue:#6889a8;--blue-d:#91b7d7;--accent:#b6d5ef;
  --card:#1d3046e8;--line:#344b63;--honey:#e5c994;--bo:.45;
  --glow1:#466d9238;--glow2:#547fa32b;--glow3:#8daac51c;
  --section:#1b2b40e8;--section2:#152439e8;--section-line:#91b7d71c;
  --checked:#17283c;--shadow:#050c1630;
  color-scheme:dark;box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)
}

*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px);scroll-behavior:smooth}
body{margin:0;font:400 1rem/1.75 var(--font);color:var(--ink);background:radial-gradient(ellipse 480px 480px at 8% 12%,var(--glow1),transparent 72%),radial-gradient(ellipse 560px 560px at 95% 36%,var(--glow2),transparent 70%),radial-gradient(ellipse 420px 420px at 25% 82%,var(--glow3),transparent 72%),var(--bg);background-repeat:no-repeat;background-attachment:fixed;overflow-x:hidden}
main{position:relative;z-index:1}
#sky{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:0}
#sky i{position:absolute;left:var(--x);bottom:-110px;width:calc(44px*var(--s));height:calc(54px*var(--s));border-radius:50% 50% 50% 50%/58% 58% 42% 42%;background:radial-gradient(circle at 32% 28%,#fff9,transparent 42%),var(--c);opacity:var(--bo);animation:rise var(--d) linear var(--dl) infinite}
#sky i::after{content:"";position:absolute;left:50%;top:100%;width:1px;height:44px;background:var(--blue-d);opacity:.5}
@keyframes rise{25%{transform:translate(16px,-30vh)}50%{transform:translate(-12px,-64vh)}75%{transform:translate(14px,-98vh)}to{transform:translate(0,-135vh)}}
.hero{min-height:94svh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 22px 20px}
.hand{font:600 1.7rem var(--hand);color:var(--accent);margin:0}
h1{margin:.1em 0 .2em;font-size:clamp(2.2rem,11vw,6rem);line-height:1.02;font-weight:600;letter-spacing:-.01em}
.ln{display:block;white-space:nowrap}
.ln b{display:inline-block;white-space:pre;font-weight:inherit;opacity:0;animation:pop .8s cubic-bezier(.3,1.6,.5,1) forwards}
@keyframes pop{from{opacity:0;transform:translateY(34px) scale(.6) rotate(-9deg)}to{opacity:1;transform:none}}
.sub{margin:0;color:var(--muted);max-width:28ch}
.gift{position:relative;width:104px;height:100px;margin:34px auto 6px;padding:0;background:none;border:0;cursor:pointer;animation:bob 2.6s ease-in-out infinite;-webkit-tap-highlight-color:transparent}
.gift .box{position:absolute;left:10px;right:10px;bottom:0;height:62px;border-radius:0 0 10px 10px;background:var(--blue)}
.gift .lid{position:absolute;left:2px;right:2px;top:20px;height:24px;border-radius:8px;background:var(--blue-d);transform-origin:0 100%;transition:transform .7s cubic-bezier(.3,1.5,.5,1)}
.gift .box::before,.gift .lid::before{content:"";position:absolute;left:50%;width:14px;margin-left:-7px;top:0;bottom:0;background:var(--bg)}
.gift .lid::after{content:"";position:absolute;left:50%;top:-15px;width:32px;height:16px;margin-left:-16px;border:5px solid var(--blue-d);border-bottom:0;border-radius:16px 16px 0 0}
.gift.open{animation:none}
.gift.open .lid{transform:translate(-8px,-32px) rotate(-22deg)}
.gift.open .box{box-shadow:0 -12px 22px -8px var(--honey)}
@keyframes bob{50%{transform:translateY(-9px)}}
.tap{font:600 1.4rem var(--hand);color:var(--accent);margin:0;transition:opacity .4s}
.sec{max-width:620px;margin:0 auto;padding:11vh 22px 3vh}
.mid{text-align:center}
h2{margin:0 0 .5em;font-size:clamp(1.8rem,6vw,2.5rem);line-height:1.15;font-weight:600;text-wrap:balance}
.sec p{margin:0 0 1em}
.lead{color:var(--muted)}
.level{margin:34px auto 0;max-width:420px;text-align:left;opacity:0;transition:opacity .8s}
.level.in{opacity:1}
.lv-top{display:flex;justify-content:space-between;font-weight:500;font-size:.95rem}
.bar{height:12px;margin:8px 0 12px;border-radius:99px;background:var(--bg2);border:1.5px solid var(--line);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--blue),var(--blue-d));transition:width 1.8s cubic-bezier(.4,0,.2,1)}
.level ul{margin:0;padding:0;list-style:none;font-size:.95rem;color:var(--muted)}
.level li{opacity:0;transform:translateX(-8px);transition:.5s}
.level.done li{opacity:1;transform:none}
.level.done li:nth-child(2){transition-delay:.25s}.level.done li:nth-child(3){transition-delay:.5s}
.wishes{display:grid;gap:18px;margin-top:34px}
.w{max-width:90%;padding:16px 20px 18px;background:var(--card);border:1.5px solid var(--line);border-radius:24px 24px 24px 6px;justify-self:start;opacity:0;transform:scale(.94) translateY(10px);transition:opacity .6s,transform .6s cubic-bezier(.3,1.4,.5,1);box-shadow:0 10px 32px var(--shadow)}
.w:nth-child(even){justify-self:end;border-radius:24px 24px 6px 24px;background:var(--bg2)}
.w.in{opacity:1;transform:none}
.w h3{margin:0 0 4px;font-size:1.15rem;font-weight:600}
.w .e{display:inline-block;margin-right:6px}
.w.in .e{animation:wig 1.1s .3s ease}
.w p{margin:0;color:var(--muted)}
.w.big{justify-self:center;max-width:100%;text-align:center;padding:28px 22px;border-radius:30px;border-color:var(--honey);background:linear-gradient(160deg,var(--bg2),var(--bg) 75%)}
.w.big h3{font-size:1.7rem}
@keyframes wig{25%{transform:rotate(-14deg) scale(1.15)}60%{transform:rotate(10deg)}}
.cake{display:block;margin:26px auto 10px;width:180px;overflow:visible}
.c1{fill:var(--blue)}.c2{fill:var(--blue-d)}.ic{fill:var(--bg)}.pl{fill:var(--line)}.cd{fill:var(--honey)}
.fl{fill:#ffc857;transform-box:fill-box;transform-origin:50% 100%;animation:flick .5s ease-in-out infinite alternate;transition:opacity .3s,transform .3s}
@keyframes flick{from{transform:scale(1) rotate(-3deg)}to{transform:scale(.92,1.08) rotate(3deg)}}
.cake.out .fl{opacity:0;animation:none;transform:scale(.2)}
.sm{fill:var(--muted);opacity:0;transform-box:fill-box;transform-origin:center}
.cake.out .sm{animation:smoke 1.8s ease-out forwards}
.sm:nth-of-type(2){animation-delay:.25s!important}.sm:nth-of-type(3){animation-delay:.5s!important}
@keyframes smoke{0%{opacity:.55;transform:translate(0,0) scale(.6)}to{opacity:0;transform:translate(9px,-52px) scale(2.4)}}
.btn{font:inherit;font-weight:500;color:var(--ink);background:var(--blue);border:0;border-radius:99px;padding:12px 28px;cursor:pointer;transition:transform .2s}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible,.gift:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.final{max-height:0;opacity:0;overflow:hidden;transition:max-height 1s,opacity .9s;margin-top:8px}
.final.show{max-height:520px;opacity:1}
.final h3{margin:22px 0 6px;font-size:1.9rem;font-weight:600}
.sign{font:600 1.8rem var(--hand);color:var(--accent)}
footer{text-align:center;color:var(--muted);font-size:.85rem;padding:60px 22px 36px}
.cf{position:fixed;pointer-events:none;z-index:50}

/* Birthday checklist */
.checklist-section{width:100%;max-width:none;margin:0;padding:90px 22px 85px;background:linear-gradient(180deg,var(--section),var(--section2));border-top:1px solid var(--section-line);border-bottom:1px solid var(--section-line);text-align:center}
.checklist-label{color:var(--accent);font-size:.72rem;font-weight:600;letter-spacing:2px;margin-bottom:16px!important}
.checklist-section h2{margin-bottom:10px;font-size:clamp(2rem,6vw,2.7rem)}
.checklist-subtitle{color:var(--muted);font-size:.9rem;margin-bottom:32px!important}
.checklist-items{display:grid;gap:10px;width:100%;max-width:620px;margin:0 auto;text-align:left}
.check-item{display:flex;align-items:center;gap:12px;min-height:54px;padding:14px 16px;background:var(--card);border:1px solid transparent;border-radius:12px;cursor:pointer;font-size:.85rem;color:var(--muted);transition:background .25s,border-color .25s,transform .25s;box-shadow:0 8px 24px var(--shadow);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.check-item:hover{border-color:var(--line);transform:translateY(-2px)}
.birthday-check{appearance:none;-webkit-appearance:none;flex:0 0 17px;width:17px;height:17px;margin:0;border:1.5px solid var(--blue-d);border-radius:5px;cursor:pointer;display:grid;place-content:center}
.birthday-check::before{content:"✓";color:white;font-size:12px;font-weight:600;transform:scale(0);transition:transform .15s}
.birthday-check:checked{background:var(--blue-d);border-color:var(--blue-d)}
.birthday-check:checked::before{transform:scale(1)}
.check-item>span:nth-child(2){flex:1;transition:opacity .2s}
.check-item:has(.birthday-check:checked){background:var(--checked);border-color:var(--line)}
.check-item:has(.birthday-check:checked)>span:nth-child(2){opacity:.72;text-decoration:line-through}
.check-emoji{flex:0 0 auto;font-size:1rem}
.checklist-progress{margin:17px 0 0!important;color:var(--accent);font-size:.78rem}
.checklist-done{color:var(--accent);font-weight:500;font-size:.9rem;margin:14px 0 0!important;animation:pop .5s ease both}
.checklist-done[hidden]{display:none}
@media(max-width:480px){.checklist-section{padding:70px 18px}.check-item{padding:13px 12px;font-size:.78rem;gap:10px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}html{scroll-behavior:auto}}