/* Estilo simples e responsivo (mobile-first) */
*{box-sizing:border-box} body{font-family:system-ui,Arial,sans-serif;margin:0;padding:16px;background:#f6f7fb;color:#222}
.container{max-width:960px;margin:0 auto}
.card{background:#fff;border:1px solid #e6e6e6;border-radius:8px;padding:16px;margin-bottom:16px;box-shadow:0 1px 2px rgba(0,0,0,.03)}
h1,h2{margin:8px 0 12px} h3{margin:4px 0 8px}
label{display:block;margin:8px 0 4px}
input,select,button,textarea{width:100%;padding:12px;border:1px solid #ddd;border-radius:8px}
input:focus,select:focus,textarea:focus{outline:none;border-color:#9a0808}
button{cursor:pointer;font-weight:600}
.btn{display:inline-block;padding:10px 14px;border-radius:8px;border:1px solid #ddd;background:#fff}
.btn-primary{background:#9a0808;color:#fff;border-color:#9a0808}
.btn-secondary{background:#222;color:#fff;border-color:#222}
.table{width:100%;border-collapse:collapse} .table th,.table td{padding:10px;border-bottom:1px solid #eee;text-align:left}
.badge{display:inline-block;padding:4px 8px;border-radius:16px;font-size:12px;border:1px solid #ddd;background:#f8f8f8}
.row{display:flex;gap:12px;flex-wrap:wrap} .col{flex:1 1 240px}
.nav{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.alert{padding:12px;border-radius:8px;margin-bottom:12px}
.alert-success{background:#e8f9ee;border:1px solid #b7ebc6} .alert-error{background:#fde8e7;border:1px solid #f5b5b1}
.footer{margin-top:24px;color:#666;font-size:13px}