:root{--primary: #0b5ed7;--open: #198754;--close: #6c757d;--warn: #d97706;--bg: #f3f4f6;--card: #ffffff;--text: #1f2937;--border: #e5e7eb}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif;background:var(--bg);color:var(--text);-webkit-tap-highlight-color:transparent}.app{max-width:480px;margin:0 auto;padding:12px 12px 40px}.header{display:flex;align-items:baseline;gap:8px;padding:8px 4px 16px}.header h1{font-size:22px;margin:0}.subtitle{font-size:13px;color:#6b7280}.banner{border-radius:12px;padding:14px 16px;margin-bottom:14px;line-height:1.6;font-size:14px}.banner-error{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;margin-bottom:14px}.card-title{font-size:15px;margin:0 0 12px;color:#374151}.field{display:block}.field-label{display:block;font-size:13px;color:#6b7280;margin-bottom:6px}.field input{width:100%;font-size:18px;padding:12px 14px;border:1px solid var(--border);border-radius:10px;outline:none}.field input:focus{border-color:var(--primary)}.name-input{display:flex;align-items:stretch;border:1px solid var(--border);border-radius:10px;overflow:hidden}.name-prefix{display:flex;align-items:center;padding:0 12px;background:#f3f4f6;color:#6b7280;font-size:16px;border-right:1px solid var(--border);white-space:nowrap}.name-input input{flex:1;border:none;border-radius:0;font-size:20px;letter-spacing:4px;padding:12px 14px;min-width:0}.name-input input:focus{outline:none}.name-preview{font-size:13px;color:#6b7280;margin:10px 2px 0}.name-preview strong{color:var(--text)}.status{display:flex;align-items:center;gap:8px;font-size:15px;margin-bottom:12px}.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block}.status-on{background:var(--open)}.status-off{background:#d1d5db}.btn{width:100%;border:none;border-radius:12px;padding:16px;font-size:17px;font-weight:600;color:#fff;cursor:pointer;transition:opacity .15s,transform .05s}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--primary)}.btn-warn{background:var(--warn)}.btn-row{display:flex;gap:12px}.btn-open{background:var(--open)}.btn-close{background:var(--close)}.hint{font-size:12px;color:#9ca3af;margin:10px 2px 0;line-height:1.5}.logs{max-height:240px;overflow-y:auto;font-size:13px}.log-empty{color:#9ca3af;text-align:center;padding:16px 0}.log{display:flex;gap:8px;padding:7px 4px;border-bottom:1px solid #f3f4f6;line-height:1.5}.log-time{color:#9ca3af;flex-shrink:0;font-variant-numeric:tabular-nums}.log-msg{word-break:break-all}.log-success .log-msg{color:var(--open)}.log-error .log-msg{color:#dc2626}.log-warn .log-msg{color:var(--warn)}.log-info .log-msg{color:#4b5563}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;z-index:100}