:root{--bg:#0f1115;--panel:#1a1d24;--border:#2a2f3a;--text:#e6e8ec;--muted:#9aa3b2;--accent:#5b8cff;--s:#ff5b6e;--a:#ffb05b;--b:#7a8aa0}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.nav{display:flex;gap:1.5rem;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid var(--border);background:var(--panel)}.logo{font-weight:700;font-size:1.1rem;color:var(--text)}.nav nav{display:flex;gap:1.25rem}.container{max-width:880px;margin:0 auto;padding:2rem 1.5rem}.footer{text-align:center;color:var(--muted);padding:2rem;font-size:.85rem;border-top:1px solid var(--border)}.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:1rem 1.25rem;margin:.75rem 0}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:1rem;gap:1rem}.tier{font-weight:700;padding:.1rem .5rem;border-radius:6px}.tier-S{background:var(--s);color:#fff}.tier-A{background:var(--a);color:#222}.tier-B{background:var(--b);color:#fff}.tag{display:inline-block;background:#232733;color:var(--muted);border-radius:6px;padding:.1rem .5rem;font-size:.8rem;margin:.15rem .25rem .15rem 0}h1{font-size:1.8rem}label{display:block;margin:.75rem 0 .25rem;color:var(--muted);font-size:.9rem}input{width:100%;padding:.5rem .6rem;background:#11141a;border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:1rem}.result{font-size:1.6rem;font-weight:700;color:var(--accent);margin-top:1rem}.note{font-size:.85rem;border-left:3px solid var(--accent);padding-left:.75rem;margin:1rem 0}.muted,.note{color:var(--muted)}.muted{font-size:.9rem}.nav{flex-wrap:wrap}.nav .langsw{margin-left:auto;font-size:.85rem;color:var(--muted)}section{margin:1.25rem 0}section h2{font-size:1.2rem}.hero-portrait{image-rendering:pixelated;vertical-align:middle}.hero-portrait-lg{image-rendering:pixelated;display:block;margin:.5rem 0 1rem}