:root{--bg:#f6f8fb;--card:#fff;--ink:#1a2332;--muted:#64748b;--line:#e2e8f0;--ok:#16a34a;--ng:#dc2626;--acc:#2563eb}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,"Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;line-height:1.7}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
.site-header{background:#0f172a;color:#fff;position:sticky;top:0;z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
.logo{color:#fff;text-decoration:none;font-weight:800;font-size:18px}
nav a{color:#cbd5e1;text-decoration:none;margin-left:16px;font-size:14px}nav a:hover{color:#fff}
.hero{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px 22px;margin:24px 0}
.hero h1{margin:0 0 8px;font-size:26px}.hero p{color:var(--muted);margin:0 0 16px}
.search-row{display:flex;gap:8px;flex-wrap:wrap}
.search-row input[type=text]{flex:1;min-width:220px;font-size:18px;padding:12px 14px;border:2px solid var(--line);border-radius:10px}
.search-row input:focus{border-color:var(--acc);outline:none}
.btn{background:var(--acc);color:#fff;border:0;border-radius:10px;padding:12px 20px;font-size:16px;font-weight:700;cursor:pointer}
.btn a{color:#fff}
.btn:hover{filter:brightness(.95)}.btn:disabled{opacity:.6;cursor:wait}
.btn-ghost{background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 12px;cursor:pointer;font-size:13px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin:16px 0}
.card h2{margin:0 0 10px;font-size:18px}
.tld-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:8px;margin:12px 0}
.tld-grid label{border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:14px;display:flex;gap:6px;align-items:center;cursor:pointer;background:#fff}
.quick{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}
.result-row{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:10px 4px;font-size:15px}
.result-row:last-child{border-bottom:0}
.badge{font-size:12px;font-weight:800;border-radius:999px;padding:3px 10px;white-space:nowrap}
.b-available{background:#dcfce7;color:#166534}.b-registered{background:#fee2e2;color:#991b1b}
.b-unknown,.b-invalid,.b-checking{background:#e2e8f0;color:#475569}
.domain{font-family:ui-monospace,Menlo,Consolas,monospace;font-weight:700;word-break:break-all}
.meta{margin-left:auto;font-size:12px;color:var(--muted);white-space:nowrap}
.reg-links a{font-size:12px;margin-right:8px}
table.spec{width:100%;border-collapse:collapse;font-size:14px}
table.spec th,table.spec td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
table.spec th{background:#f8fafc;white-space:nowrap;width:160px}
pre.raw{background:#0f172a;color:#e2e8f0;border-radius:10px;padding:14px;overflow:auto;font-size:12px;max-height:420px}
.hint{font-size:13px;color:var(--muted)}
.site-footer{color:var(--muted);font-size:12px;padding:24px 0;text-align:center}
.progress{font-size:14px;color:var(--muted);margin:8px 0}
@media(max-width:600px){.hero h1{font-size:21px}.meta{display:none}}