/* Estilos simples e responsivos */
body{font-family:Arial,Helvetica,sans-serif;margin:0;color:#222}
header{display:flex;justify-content:space-between;align-items:center;padding:12px 18px;background:#f5f5f5}
.container{display:flex;height:calc(100vh - 64px)}
.calendar{width:320px;padding:16px;border-right:1px solid #eee}
.schedule{flex:1;padding:16px;overflow:auto}
.slot{display:flex;justify-content:space-between;align-items:center;padding:8px;border-bottom:1px solid #f0f0f0}
.slot.empty{background:#fff}
.slot.booked{background:#ffe}
.btn{background:#0078d4;color:#fff;padding:8px 10px;border-radius:4px;text-decoration:none}
.center{max-width:360px;margin:60px auto;padding:20px;border:1px solid #eee;border-radius:6px}
form label{display:block;margin-bottom:10px}
input[type="date"],input[type="email"],input[type="password"]{width:100%;padding:8px;margin-top:6px}
.error{color:#b00020;margin-bottom:10px}
.muted{color:#666;font-size:13px}