*{box-sizing:border-box}body{margin:0;font-family:system-ui, -apple-system, Segoe UI, Roboto, Noto Sans JP, sans-serif;color:#222;background:#fff}
h1,h2{margin:8px 0}
.head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid #eee;position:sticky;top:0;background:#fff;z-index:10}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.grid{display:grid;grid-template-columns:300px 1fr;gap:12px;padding:12px;min-height:calc(100vh - 112px)}
.sidebar{border:1px solid #eee;border-radius:12px;padding:12px}
.content{border:1px solid #eee;border-radius:12px;padding:12px}
.form label{display:block;margin:6px 0}
.row{display:flex;gap:8px;align-items:center;margin:8px 0;flex-wrap:wrap}
input,select,button,textarea{padding:10px;border:1px solid #ddd;border-radius:10px;font:inherit}
button{cursor:pointer;background:#fafafa}
button:hover{background:#f0f0f0}
#map{height:360px;margin:8px 0;border-radius:12px;overflow:hidden;border:1px solid #eee}
ul{list-style:none;padding:0;margin:0}
#tripList li{padding:8px;border:1px solid #eee;border-radius:10px;margin-bottom:6px;cursor:pointer}
#tripList li:hover{background:#fafafa}
.grow{flex:1;min-width:200px}
.table{width:100%;border-collapse:separate;border-spacing:0 6px}
.table th,.table td{padding:8px 10px;border-top:1px solid #eee;border-bottom:1px solid #eee;background:#fff}
.table tr{border-radius:10px;overflow:hidden}
.foot{padding:8px 16px;border-top:1px solid #eee}
@media (max-width:900px){.grid{grid-template-columns:1fr}#map{height:300px}}