:root{
  --primary:#3498db;
  --accent:#2980b9;
  --light:#f5f7fa;
  --card:#fff;
  --success:#2ecc71;
  --danger:#e74c3c;
}
*{box-sizing:border-box}
body{font-family:Segoe UI, Tahoma, Geneva, Verdana, sans-serif;background:var(--light);margin:0;color:#222}
.container{max-width:600px;margin:20px auto;padding:18px}
header{text-align:center;padding:18px 0}
.card{background:var(--card);padding:20px;border-radius:10px;box-shadow:0 6px 18px rgba(0,0,0,.04);margin-bottom:16px}
label{display:block;margin:12px 0 6px;font-weight:600}
input,select{width:100%;padding:12px;border-radius:6px;border:1px solid #ccc;font-size:1rem}
.btn{background:var(--primary);color:#fff;padding:12px 18px;border-radius:8px;border:none;cursor:pointer;font-weight:bold}
.btn:disabled{background:#ccc}
.time-slots{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:8px;margin-top:8px}
.time-slot{padding:10px;border-radius:8px;border:1px solid #ccc;background:#fff;text-align:center;cursor:pointer;font-size:0.9rem}
.time-slot.selected{background:var(--primary);color:#fff;border-color:var(--primary)}
.time-slot.disabled{background:#eee;color:#888;cursor:not-allowed;border-color:#ddd}
.alert{padding:15px;border-radius:6px;margin-bottom:15px}
.alert-success{background:#e6ffef;color:#0a6a2a}
.alert-danger{background:#ffe6e6;color:#a11}
.capture-box { border: 2px solid var(--primary); border-radius: 12px; padding: 15px; margin: 20px 0; background: #fff; }