:root{--bg:#0b0f14;--card:#121922;--text:#e8eef5;--muted:#8b9bb0;--accent:#3b82f6;--accent2:#22c55e;--danger:#ef4444;--border:#1f2a3a}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:960px;margin:0 auto;padding:1.25rem}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1rem 1.25rem;margin-bottom:1rem}.btn{display:inline-block;padding:.55rem 1rem;border-radius:8px;border:none;cursor:pointer;font-weight:600;font-size:.95rem}.btn-primary{background:var(--accent);color:#fff}.btn-secondary{background:#243044;color:var(--text)}.btn:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{width:100%;padding:.5rem .65rem;border-radius:8px;border:1px solid var(--border);background:#0e141c;color:var(--text)}label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:.25rem}.row{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center}.mt{margin-top:.75rem}.mb{margin-bottom:.75rem}.err{color:var(--danger);font-size:.9rem}.nav{display:flex;gap:1rem;align-items:center;flex-wrap:wrap;padding:.75rem 0;border-bottom:1px solid var(--border);margin-bottom:1rem}.nav a{color:var(--muted)}.nav a:hover,.option{color:var(--text)}.option{display:block;width:100%;text-align:left;margin:.35rem 0;padding:.65rem .75rem;border-radius:8px;border:1px solid var(--border);background:#0e141c;cursor:pointer}.option.selected{border-color:var(--accent);background:#132032}