:root{--bg:#f4f6f8;--panel:#fff;--line:#d9dee5;--text:#1f2937;--muted:#6b7280;--accent:#2563eb;--accent-soft:#dbeafe;--danger:#b91c1c;--shadow:0 4px 18px rgba(15,23,42,.08)}
*{box-sizing:border-box} body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}
header{background:var(--panel);border-bottom:1px solid var(--line);padding:14px 20px;display:flex;align-items:center;gap:10px;position:sticky;top:0;z-index:5} header h1{margin:0;font-size:20px}.spacer{flex:1}
button{border:1px solid var(--line);background:#fff;color:var(--text);padding:9px 12px;border-radius:8px;cursor:pointer;font-weight:650}button:hover{background:#f8fafc}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.danger{color:var(--danger)}button.small{padding:6px 8px;font-size:12px}
.icon-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;padding:0;border-radius:999px;font-size:16px;line-height:1;flex:0 0 auto}
.changelog-dot{position:absolute;top:3px;right:3px;width:9px;height:9px;border-radius:50%;background:var(--danger);border:2px solid var(--panel)}
main{padding:18px}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;align-items:center}.toolbar input{min-width:250px}
input,textarea,select{width:100%;border:1px solid var(--line);border-radius:8px;padding:9px 10px;font:inherit;background:#fff}textarea{min-height:90px;resize:vertical}