*{margin:0;padding:0;box-sizing:border-box;font-family:Arial,sans-serif}
body{background:#f3f6fb;color:#1f2937}
.login-body{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#081a45,#2751d8)}
.login-box{width:100%;max-width:420px;background:#fff;border-radius:20px;padding:32px;box-shadow:0 20px 50px rgba(0,0,0,.22)}
.login-top{text-align:center;margin-bottom:24px}
.login-top h1{font-size:28px;color:#111827;margin-bottom:6px}
.login-top p{color:#6b7280}
.login-form{display:flex;flex-direction:column;gap:10px}
.login-form label{font-weight:bold;font-size:14px}
.login-form input,.form-grid input,.form-grid select,.form-grid textarea{padding:12px 14px;border:1px solid #d1d5db;border-radius:10px;outline:none;width:100%}
.login-form input:focus,.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus{border-color:#2563eb}
.login-form button,.btn-primary,.submit-btn{margin-top:8px;padding:13px;border:none;border-radius:10px;background:#2563eb;color:#fff;font-size:15px;font-weight:bold;cursor:pointer;text-decoration:none;display:inline-block}
.login-form button:hover,.btn-primary:hover,.submit-btn:hover{background:#1d4ed8}
.alert-error{background:#fee2e2;color:#991b1b;padding:12px;border-radius:10px;margin-bottom:16px;font-size:14px}
.alert-success{background:#dcfce7;color:#166534;padding:12px;border-radius:10px;margin-bottom:16px;font-size:14px}
.layout{display:flex;min-height:100vh}
.sidebar{width:260px;background:#071537;color:#fff;padding:24px 16px}
.brand{font-size:24px;font-weight:bold;margin-bottom:30px;text-align:center}
.menu{display:flex;flex-direction:column;gap:12px}
.menu a{text-decoration:none;color:#fff;background:rgba(255,255,255,.08);padding:14px 16px;border-radius:12px;transition:.2s}
.menu a:hover,.menu a.active{background:rgba(255,255,255,.16)}
.menu .logout{margin-top:10px;background:#d71c1c}
.menu .logout:hover{background:#b91c1c}
.main{flex:1;padding:24px}
.header{background:linear-gradient(135deg,#3267e3,#2749ba);color:#fff;border-radius:20px;padding:26px;margin-bottom:22px;box-shadow:0 10px 30px rgba(37,99,235,.25)}
.header h1{font-size:30px;margin-bottom:8px}
.content-card{background:#fff;padding:24px;border-radius:20px;box-shadow:0 10px 30px rgba(15,23,42,.08)}
.content-card h2{margin-bottom:12px}
.form-card{max-width:1000px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.form-grid .full{grid-column:1/-1}
.form-grid label{display:block;font-weight:bold;margin-bottom:8px}
.top-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:15px}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
table th,table td{padding:14px 12px;border-bottom:1px solid #e5e7eb;text-align:left;vertical-align:middle}
table th{background:#f8fafc;font-size:14px}
.empty-box{background:#f8fafc;border:1px dashed #cbd5e1;padding:20px;border-radius:14px}
.actions,.material-actions{display:flex;gap:8px;flex-wrap:wrap}
.actions form,.material-actions form{margin:0}
.btn-edit{background:#f59e0b;color:#fff;text-decoration:none;padding:10px 12px;border-radius:10px;display:inline-block}
.btn-delete{background:#dc2626;color:#fff;border:none;padding:10px 12px;border-radius:10px;cursor:pointer}
.status{display:inline-block;padding:7px 12px;border-radius:999px;font-size:13px;font-weight:bold;text-transform:capitalize}
.status.ativo{background:#dcfce7;color:#166534}
.status.inativo{background:#fee2e2;color:#991b1b}
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.material-card{border:1px solid #e5e7eb;border-radius:16px;overflow:hidden;background:#fff}
.material-preview{height:220px;background:#f8fafc;display:flex;align-items:center;justify-content:center}
.material-preview img{max-width:100%;max-height:100%;display:block}
.material-body{padding:14px}
.material-body h3{margin-bottom:12px;font-size:18px}
.textos-lista{display:flex;flex-direction:column;gap:16px}
.texto-card{border:1px solid #e5e7eb;border-radius:16px;padding:16px;background:#fff}
.texto-card h3{margin-bottom:12px}
.texto-card textarea{width:100%;min-height:140px;resize:vertical;background:#f8fafc;margin-bottom:12px}
@media (max-width:900px){.form-grid{grid-template-columns:1fr}.sidebar{width:220px}.header h1{font-size:24px}}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-bottom:22px;
}
.stat-card{
  background:#fff;
  border-radius:18px;
  padding:22px;
  box-shadow:0 10px 30px rgba(15,23,42,.08);
}
.stat-label{
  display:block;
  font-size:14px;
  color:#6b7280;
  margin-bottom:10px;
}
.stat-number{
  font-size:34px;
  color:#1f2937;
  font-weight:700;
}
@media (max-width:900px){
  .stats-grid{
    grid-template-columns:1fr;
  }
}