body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;margin:0;background:#f7f7f7;color:#111}a{color:inherit}input,select,button,textarea{font:inherit}button{cursor:pointer}
.container{max-width:1000px;margin:0 auto;padding:16px}
.topbar{background:#fff;border-bottom:1px solid #ddd}
.brand{font-weight:700}
.nav{display:flex;gap:12px;align-items:center}
.nav a{text-decoration:none;padding:6px 8px;border-radius:6px}
.nav a:hover{background:#f0f0f0}
.inline{display:inline}
.linkbtn{background:none;border:none;padding:6px 8px;border-radius:6px}
.linkbtn:hover{background:#f0f0f0}
.card{background:#fff;border:1px solid #ddd;border-radius:10px;padding:14px;margin:12px 0}
.row{display:flex;gap:12px;flex-wrap:wrap}
.field{display:flex;flex-direction:column;gap:6px;min-width:240px;flex:1}
.field input,.field select,.field textarea{border:1px solid #ccc;border-radius:8px;padding:8px}
.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid #ddd;border-radius:10px;overflow:hidden}
.table th,.table td{padding:10px;border-bottom:1px solid #eee;text-align:left}
.table th{background:#fafafa}
.actions{display:flex;gap:10px;align-items:center}
.btn{background:#111;color:#fff;border:none;border-radius:8px;padding:8px 10px;text-decoration:none;display:inline-block}
.btn.secondary{background:#444}
.error{color:#a40000;font-weight:600}
.notice{color:#0b6b0b;font-weight:600}
.small{color:#555;font-size:12px}
.room{border:1px dashed #ccc;border-radius:10px;padding:12px;margin:10px 0;background:#fcfcfc}