:root{--bg:#0b0b0f;--card:#16161d;--line:#2a2a35;--ink:#0b0b0f;--txt:#f4f4f6;--mut:#b4b4c2;--accent:#c6ff00;--accent-ink:#0b0b0f;--warn:#2a2410;--warn-l:#6b5a12;--err:#ff7a9c;color-scheme:dark}
[data-theme=light]{--bg:#f6f5f0;--card:#fff;--line:#e2e0d6;--txt:#0b0b0f;--mut:#4a4a57;--warn:#fff8d6;--warn-l:#e7cf63;--err:#b0003a;color-scheme:light}
*{box-sizing:border-box}html{background:var(--bg)}
body{margin:0;font:17px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;color:var(--txt);background:var(--bg)}
a{color:var(--txt);text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:8px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--accent);color:var(--accent-ink);padding:8px 12px;z-index:9}
.top{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;padding:14px 22px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:5}
.logo{font-size:1.7rem;font-weight:900;letter-spacing:-.04em;text-decoration:none;margin-right:auto}.logo b{color:var(--bg);background:var(--accent);padding:0 .25em;border-radius:8px;margin-left:2px}
[data-theme=light] .logo b{color:var(--accent-ink)}
.theme{order:3;border:2px solid var(--line);background:var(--card);border-radius:999px;width:44px;height:44px;font-size:1.2rem;cursor:pointer}
nav{order:4;display:flex;flex-wrap:wrap;gap:6px;width:auto}nav a{padding:6px 12px;border-radius:999px;font-weight:700;text-decoration:none;color:var(--mut)}
nav a:hover{color:var(--txt);background:var(--card)}
main{max-width:1000px;margin:0 auto;padding:32px 20px 56px}
h1{font-size:clamp(2.2rem,6vw,4.2rem);line-height:1.02;font-weight:900;letter-spacing:-.04em;margin:.25em 0 .3em}
.hl{background:var(--accent);color:var(--accent-ink);padding:0 .15em;border-radius:12px;display:inline-block;transform:rotate(-2deg)}
.lead{color:var(--mut);font-size:1.15rem;max-width:40em}
.badge{display:inline-flex;gap:8px;align-items:center;border:2px solid var(--accent);color:var(--txt);border-radius:999px;padding:6px 14px;font-weight:800;font-size:.9rem;margin:0}
.hero{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;padding:12px 0 36px}
.mascot{width:190px;height:auto;filter:drop-shadow(0 10px 0 rgba(0,0,0,.35));transform:rotate(6deg)}.m-body{transform-origin:60px 130px;animation:bob 3s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-8px) rotate(-3deg)}}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.card{display:block;background:var(--card);border:2px solid var(--line);border-radius:26px;padding:24px;text-decoration:none;color:var(--txt);transition:transform .15s cubic-bezier(.3,1.6,.5,1),border-color .15s,box-shadow .15s}
.card:hover,.card:focus-visible{transform:translateY(-4px) rotate(-1deg);border-color:var(--accent);box-shadow:6px 6px 0 var(--accent)}.card:active{transform:scale(.97)}
.card h2{margin:.5em 0 .2em;font-size:1.45rem;font-weight:900;letter-spacing:-.02em}.card p{margin:0;color:var(--mut)}
.ic{display:inline-grid;place-items:center;width:54px;height:54px;border-radius:18px;background:var(--accent);color:var(--accent-ink);font-size:1.6rem;font-weight:900}
.btn{display:inline-block;border:2px solid var(--line);background:var(--card);color:var(--txt);padding:14px 26px;border-radius:999px;font:inherit;font-weight:800;cursor:pointer;text-decoration:none;transition:transform .12s cubic-bezier(.3,1.6,.5,1),box-shadow .12s}
.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(1px) scale(.97)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-size:1.15rem;padding:16px 34px;box-shadow:0 5px 0 rgba(198,255,0,.35)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.drop{border:3px dashed var(--line);border-radius:32px;background:var(--card);min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:36px 16px;text-align:center;margin:24px 0;transition:border-color .15s,transform .15s}
.drop:hover,.drop.over{border-color:var(--accent)}.drop.over{transform:scale(1.015)}.drop-ic{font-size:3.2rem}
.drop-t{font-size:clamp(1.5rem,4vw,2.2rem);font-weight:900;margin:0;letter-spacing:-.02em}.drop-s{color:var(--mut);margin:0 0 14px}
.vh{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}.drop:focus-within .btn{outline:3px solid var(--accent);outline-offset:3px}
.list,.out{list-style:none;padding:0}.list li{display:flex;gap:6px;align-items:center;background:var(--card);border:2px solid var(--line);border-radius:16px;padding:8px 12px;margin:8px 0}
.list li span{flex:1;overflow-wrap:anywhere}.list button{border:0;background:var(--line);color:var(--txt);border-radius:10px;min-width:36px;min-height:36px;cursor:pointer;font-weight:800}
.out li{margin:10px 0}.out .btn{border-color:var(--accent)}
.opts{border:2px solid var(--line);border-radius:22px;background:var(--card);margin:18px 0;padding:14px 20px}legend{font-weight:900;padding:0 6px}.blk{display:block;margin-top:12px;font-weight:800}
input[type=text],select{font:inherit;padding:12px;border:2px solid var(--line);border-radius:14px;width:100%;max-width:340px;background:var(--bg);color:var(--txt)}
input[type=radio]{accent-color:var(--accent);width:18px;height:18px}
.status{min-height:1.5em;font-weight:800;font-size:1.1rem}.err{color:var(--err)}
.note{background:var(--warn);border:2px solid var(--warn-l);border-radius:18px;padding:12px 16px}
footer{text-align:center;color:var(--mut);font-size:.95rem;padding:28px;border-top:1px solid var(--line)}
@media(max-width:700px){.hero{grid-template-columns:1fr}.mascot{width:96px;grid-row:1;justify-self:end;margin:0 8px 12px 0}.badge{font-size:.8rem}nav{width:100%}.drop{min-height:260px}.btn.primary{width:100%;text-align:center}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.card:hover,.btn:hover{transform:none}}
.m-a{fill:var(--accent);stroke:#0b0b0f;stroke-width:6;stroke-linejoin:round}.m-l{fill:none;stroke:#0b0b0f;stroke-width:6;stroke-linejoin:round;stroke-linecap:round}.m-i{fill:#0b0b0f}
[data-theme=light] .badge{border-color:#0b0b0f}