:root{--bg:#0f1419;--panel:#1a222c;--text:#e8eef4;--muted:#9aabba;--accent:#2f6fed;--accent-hover:#3d7dff;--border:#2a3542;--danger:#d64545;--ok:#2f9e6b;--font:"Hiragino Sans","Noto Sans JP","Segoe UI",sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;font-family:var(--font);background:radial-gradient(1200px 600px at 10% -10%,#1c3358 0,transparent 55%),radial-gradient(900px 500px at 100% 0,#163528 0,transparent 50%),var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}button,input{font:inherit}.container{width:min(1100px,calc(100% - 2rem));margin:0 auto}.panel{background:color-mix(in srgb,var(--panel) 92%,transparent);border:1px solid var(--border);border-radius:16px;padding:1.5rem;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;border-radius:10px;padding:.7rem 1rem;background:var(--accent);color:white;cursor:pointer;font-weight:600}.btn:hover{background:var(--accent-hover)}.btn.secondary{background:transparent;border:1px solid var(--border);color:var(--text)}.btn:disabled{opacity:.6;cursor:not-allowed}.field{display:grid;grid-gap:.35rem;gap:.35rem;margin-bottom:.9rem}.field label{font-size:.85rem;color:var(--muted)}.field input{border:1px solid var(--border);background:#10161d;color:var(--text);border-radius:10px;padding:.7rem .8rem}.error{color:#ffb4b4;background:rgba(214,69,69,.15);border:1px solid rgba(214,69,69,.35);border-radius:10px;padding:.7rem .9rem;margin-bottom:1rem;font-size:.9rem}.muted{color:var(--muted)}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:0 1rem;gap:0 1rem}@media (max-width:720px){.grid-2{grid-template-columns:1fr}}.table{width:100%;border-collapse:collapse;font-size:.92rem}.table td,.table th{text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--border);vertical-align:middle}.table th{color:var(--muted);font-weight:600;background:#121820}.table tr:last-child td{border-bottom:none}