:root{--bg:#f7f7f9;--card:#ffffff;--accent:#6b2d2d;--muted:#666}
*{box-sizing:border-box}
body{font-family:system-ui,Segoe UI,Roboto,Arial;background:var(--bg);color:#222;margin:0;padding:0}
header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.25rem;background:var(--card);box-shadow:0 1px 2px rgba(0,0,0,.05)}
header h1{margin:0;font-size:1.1rem;color:var(--accent)}
#auth-area{display:flex;gap:.5rem;align-items:center}
main{padding:1rem;max-width:980px;margin:1rem auto}
section{background:var(--card);padding:1rem;margin-bottom:1rem;border-radius:6px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.hidden{display:none}
#list table{width:100%;border-collapse:collapse}
#list th,#list td{padding:.5rem;border-bottom:1px solid #eee;text-align:left}
button{background:var(--accent);color:#fff;border:0;padding:.45rem .6rem;border-radius:4px;cursor:pointer}
button:disabled{opacity:.5;cursor:not-allowed}
input,select{padding:.4rem;border:1px solid #ddd;border-radius:4px}
.form-row{display:flex;gap:.5rem;align-items:center;margin-top:.5rem}
label{display:block;margin-top:.5rem}
footer{padding:1rem;text-align:center;color:var(--muted)}