:root { --red:#d71920; --dark:#222; --light:#f7f7f7; --violet:#6d3c91; }
*{box-sizing:border-box} body{margin:0;font-family:Arial, sans-serif;background:var(--light);color:var(--dark)}
.header{background:white;border-bottom:4px solid var(--red);padding:24px;text-align:center}.header h1{margin:0;color:var(--red);font-size:34px}.header p{margin:8px 0 0;color:#555}
.container{max-width:1100px;margin:30px auto;padding:0 18px}.card{background:white;border-radius:16px;padding:24px;box-shadow:0 8px 24px rgba(0,0,0,.08);margin-bottom:22px}
.btn{display:inline-block;background:var(--red);color:white;text-decoration:none;border:0;border-radius:10px;padding:12px 18px;font-weight:bold;cursor:pointer}.btn.secondary{background:var(--violet)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}.field{margin-bottom:14px}.field label{display:block;font-weight:bold;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;padding:11px;border:1px solid #ccc;border-radius:8px;font-size:15px}
.notice{background:#fff4d6;border-left:5px solid #f0b400;padding:12px;border-radius:8px}.success{background:#e9f8ed;border-left:5px solid #2a9d50;padding:12px;border-radius:8px}.error{background:#fdeaea;border-left:5px solid #c0392b;padding:12px;border-radius:8px}
table{width:100%;border-collapse:collapse;background:white}th,td{border-bottom:1px solid #eee;padding:10px;text-align:left}th{background:#fafafa}.small{font-size:13px;color:#666}.topnav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.atelier-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:12px;margin-top:12px}.atelier-option{display:flex;gap:12px;align-items:flex-start;width:100%;border:1px solid #ddd;border-radius:10px;padding:12px;margin:0;background:#fff;line-height:1.35}.atelier-option input{margin-top:3px;flex:0 0 auto}.atelier-option strong{display:block;margin-bottom:4px}.atelier-option.full{opacity:.45}.atelier-option-content{min-width:0}.footer{text-align:center;color:#777;font-size:13px;padding:30px}

#atelier-map{width:100%;height:380px;border:1px solid #ddd;border-radius:12px;margin:12px 0 6px;overflow:hidden}