:root{
  --primary:oklch(.60 .20 352);
  --pink:oklch(.72 .15 350);
  --ink:oklch(.35 .04 350);
  --soft:oklch(.85 .06 350);
  --gradient-bg:linear-gradient(165deg,oklch(98% .012 355),oklch(93% .05 350) 55%,oklch(90% .07 345));
  --glass-bg:oklch(100% 0 0/.74);
  --glass-border:oklch(93% .035 355/.9);
  --shadow-soft:0 20px 60px -20px oklch(68% .2 350/.35),0 2px 6px oklch(68% .2 350/.12);
  --shadow-glow:0 0 44px oklch(72% .19 350/.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Plus Jakarta Sans',ui-sans-serif,system-ui,sans-serif;
  color:var(--ink);
  background:var(--gradient-bg) fixed;
  min-height:100dvh;
  -webkit-font-smoothing:antialiased;
}
.hidden{display:none!important}
.bg-gradient{position:fixed;inset:0;z-index:-2;background:var(--gradient-bg)}
.corner{position:fixed;z-index:-1;pointer-events:none;opacity:.9}
.corner-tl{top:0;left:0;width:110px;transform:rotate(180deg)}
.corner-br{bottom:0;right:0;width:110px}

.screen{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 18px 40px}
.screen.scroll{justify-content:flex-start;padding-top:56px}
.screen-inner{text-align:center;max-width:26rem;width:100%}
.stack{max-width:26rem;width:100%;display:flex;flex-direction:column;gap:22px}

.glass{
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-soft);
  border-radius:28px;
}
.card{padding:26px 22px}

.title-script{font-family:'Dancing Script',cursive;font-size:3.4rem;line-height:1.05;color:var(--primary);text-shadow:0 0 40px oklch(72% .19 350/.35)}
.script{font-family:'Dancing Script',cursive;font-size:2.2rem;line-height:1.1;color:var(--primary);margin-bottom:14px}
.kick{font-size:.72rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--pink);margin-bottom:14px}
.landing-sub{font-family:'Great Vibes',cursive;font-size:1.4rem;color:var(--soft);margin:6px 0 34px}
.hint{margin-top:18px;font-size:.72rem;color:oklch(70% .05 350)}

.btn{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:.82rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--primary);
  background:oklch(100% 0 0/.8);
  border:1.5px solid var(--glass-border);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-soft);
  border-radius:9999px;
  padding:.95rem 2rem;
  cursor:pointer;
  transition:transform .2s,box-shadow .25s,background .25s;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}
.btn:active{transform:scale(.96)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}

.warn-tag{font-size:.7rem;font-weight:800;letter-spacing:.25em;text-transform:uppercase;color:var(--primary);margin-bottom:12px}
.warn-text{font-size:.95rem;line-height:1.7;color:var(--ink);margin-bottom:22px;text-align:center}

.eyebrow{font-size:.66rem;font-weight:800;letter-spacing:.26em;text-transform:uppercase;color:var(--pink);margin-bottom:6px}
.sub-text{font-size:.9rem;color:var(--soft);font-family:'Plus Jakarta Sans',sans-serif}
.points{
  display:inline-block;font-size:.75rem;font-weight:800;letter-spacing:.08em;
  color:var(--primary);background:oklch(94% .05 350/.6);
  border:1px solid var(--glass-border);border-radius:9999px;padding:.4rem 1rem;margin-bottom:18px;
}
.q{margin-bottom:20px}
.q-text{font-size:.95rem;font-weight:700;color:var(--ink);margin-bottom:12px;line-height:1.55}
.opts{display:flex;flex-direction:column;gap:9px}
.opt{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.88rem;font-weight:600;color:var(--ink);
  background:oklch(100% 0 0/.6);border:1.5px solid var(--glass-border);border-radius:16px;
  padding:.8rem 1rem;text-align:left;cursor:pointer;
  transition:transform .15s,border-color .2s,background .2s,color .2s;
}
.opt:hover{transform:translateX(3px);border-color:var(--pink)}
.opt:disabled{cursor:default;transform:none}
.opt.right{background:oklch(93% .06 140/.7);border-color:oklch(72% .14 145);color:oklch(38% .08 145)}
.opt.wrong{background:oklch(94% .05 25/.6);border-color:oklch(74% .12 25);color:oklch(40% .08 25);text-decoration:line-through}
.fb{margin-top:11px;font-size:.85rem;font-weight:700;color:var(--primary);line-height:1.5}
.fb.ok{color:oklch(48% .1 145)}
.fb.bad{color:oklch(52% .11 25)}

.list{list-style:none;display:flex;flex-direction:column;gap:10px}
.list li{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.92rem;font-weight:600;color:var(--ink);line-height:1.45}
.list.check li::before{content:"✔";color:oklch(55% .12 150);font-weight:800;margin-right:8px}
.list.dots li::before{content:"♥";color:var(--pink);font-size:.7rem;margin-right:10px}
.badge{flex-shrink:0;font-size:.62rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:oklch(48% .1 145);background:oklch(94% .05 145/.55);border-radius:9999px;padding:.32rem .7rem}
li.impossible{opacity:.55;text-decoration:line-through}
li.impossible .badge{color:oklch(52% .11 25);background:oklch(94% .05 25/.5)}

.mem-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mem{
  display:flex;flex-direction:column;align-items:center;gap:9px;
  background:oklch(100% 0 0/.6);border:1.5px solid var(--glass-border);border-radius:20px;
  padding:16px 10px;cursor:pointer;font-family:'Plus Jakarta Sans',sans-serif;
  font-size:.8rem;font-weight:700;color:var(--ink);line-height:1.35;
  transition:transform .2s,box-shadow .25s,border-color .2s;
}
.mem img{width:64px;height:64px;object-fit:contain}
.mem:hover{transform:translateY(-3px);border-color:var(--pink);box-shadow:var(--shadow-glow)}
.mem:active{transform:scale(.96)}
.mem-body{margin-top:16px;font-size:.9rem;line-height:1.7;color:var(--ink);background:oklch(100% 0 0/.6);border-radius:18px;padding:16px}
.mem-body strong{color:var(--primary)}

.chapter-btns{display:flex;flex-direction:column;gap:10px}
.chap{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.9rem;font-weight:700;color:var(--primary);
  background:oklch(100% 0 0/.6);border:1.5px solid var(--glass-border);border-radius:16px;
  padding:.9rem 1.1rem;text-align:left;cursor:pointer;
  transition:transform .15s,box-shadow .25s,border-color .2s;
}
.chap:hover{transform:translateY(-2px);border-color:var(--pink);box-shadow:var(--shadow-glow)}
.chap:active{transform:scale(.97)}
.chap-body{margin-top:16px;font-size:.9rem;line-height:1.7;color:var(--ink);background:oklch(100% 0 0/.6);border-radius:18px;padding:16px}
.chap-body strong{color:var(--primary)}

.btn-danger{color:oklch(52% .11 25);border-color:oklch(84% .06 25)}
.btn-danger:hover{box-shadow:0 0 44px oklch(72% .12 25/.4)}
.center{display:flex;justify-content:center}
#forbidden .center{margin-top:8px}

.letter-text{font-size:.93rem;line-height:1.85;color:var(--ink)}
.letter-text p{margin-bottom:14px}
.letter-text p:first-child::before{content:"💭 ";}
.letter-text p:last-of-type::before{content:"💌 ";}

.music-btn{
  position:fixed;right:16px;bottom:20px;z-index:40;
  width:52px;height:52px;border-radius:50%;cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:1.25rem;
  background:oklch(100% 0 0/.8);border:1.5px solid var(--glass-border);
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-soft);transition:transform .2s,box-shadow .25s;
}
.music-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}
.music-btn:active{transform:scale(.92)}
.eq{display:flex;align-items:flex-end;gap:3px;height:18px}
.eq i{width:4px;border-radius:2px;background:var(--primary);animation:eq 1s ease-in-out infinite}
.eq i:nth-child(1){height:60%;animation-delay:.1s}
.eq i:nth-child(2){height:100%}
.eq i:nth-child(3){height:45%;animation-delay:.35s}
@keyframes eq{0%,100%{transform:scaleY(.4)}50%{transform:scaleY(1)}}

.overlay{
  position:fixed;inset:0;z-index:60;
  background:oklch(50% .03 350/.35);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;padding:22px;
}
.popup{position:relative;max-width:24rem;width:100%;padding:28px 24px;text-align:center;animation:pop .35s cubic-bezier(.34,1.56,.64,1)}
@keyframes pop{from{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}
.popup-x{
  position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;
  border:1.5px solid var(--glass-border);background:oklch(100% 0 0/.7);color:var(--primary);
  font-size:.9rem;cursor:pointer;transition:transform .15s;
}
.popup-x:hover{transform:rotate(90deg)}
.secret{font-family:'Dancing Script',cursive;font-size:1.5rem;color:var(--primary);margin-bottom:10px}
.secret-message{font-size:.92rem;line-height:1.8;color:var(--ink);margin-bottom:20px}

@media (max-width:380px){
  .title-script{font-size:2.7rem}
  .script{font-size:1.9rem}
  .corner{width:84px}
}