/* assets/style.css */
*{box-sizing:border-box}
body{font-family:Arial, Helvetica, sans-serif; margin:0; background:#f4f6f9; color:#222}
.header{background:#004aad;color:#fff;padding:16px}
.header .title{font-size:24px;margin:0}
.container{width:94%;max-width:1100px;margin:18px auto}
.nav{background:#003580;padding:10px;text-align:center}
.nav a{color:#fff;text-decoration:none;margin:0 12px;font-weight:600}
.banner{height:300px;background:url('https://picsum.photos/1200/300') center/cover;display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;text-shadow:0 2px 6px rgba(0,0,0,.6)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.card{background:#fff;padding:14px;border-radius:8px;box-shadow:0 2px 6px rgba(0,0,0,.08)}
.card img{width:100%;height:160px;object-fit:cover;border-radius:6px}
.footer{background:#003580;color:#fff;padding:18px;text-align:center;margin-top:24px}
.btn{display:inline-block;padding:8px 12px;background:#004aad;color:#fff;border-radius:6px;text-decoration:none}
.form-group{margin-bottom:12px}
label{display:block;margin-bottom:6px;font-weight:600}
input[type="text"], input[type="password"], textarea {width:100%;padding:8px;border:1px solid #ddd;border-radius:6px}