* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, sans-serif; }
.tela-bloqueio { display: flex; justify-content: center; align-items: center; height: 100vh; background-color: #1a1a2e; color: white; }
.layout-sistema { display: flex; height: 100vh; background-color: #f4f7f6; }
.sidebar { width: 250px; background-color: #1a1a2e; color: white; padding: 20px; }
.sidebar h2 { margin-bottom: 30px; text-align: center; color: #00e5ff; }
.sidebar ul { list-style: none; }
.sidebar ul li a { color: white; text-decoration: none; padding: 10px; display: block; border-radius: 5px; }
.sidebar ul li.ativo a { background-color: #16213e; border-left: 4px solid #00e5ff; }
.content { flex: 1; padding: 40px; overflow-y: auto; }
.abas-controle { margin-bottom: 20px; border-bottom: 2px solid #ccc; padding-bottom: 10px; }
.btn-aba { padding: 10px 20px; border: none; background: #ddd; cursor: pointer; border-radius: 5px; font-weight: bold; margin-right: 10px; }
.btn-aba.ativa { background: #00e5ff; color: #000; }
form { background: white; padding: 30px; border-radius: 10px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); max-width: 600px; }
.form-group { margin-bottom: 20px; }
label { display: block; font-weight: bold; margin-bottom: 5px; color: #444; }
input { width: 100%; padding: 12px; border: 1px solid #ccc; border-radius: 5px; }
.btn-salvar { background-color: #00e5ff; font-weight: bold; border: none; padding: 15px; border-radius: 5px; cursor: pointer; width: 100%; }
.tabela-clientes { width: 100%; border-collapse: collapse; background: white; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }
.tabela-clientes th, .tabela-clientes td { padding: 15px; text-align: left; border-bottom: 1px solid #ddd; }
.tabela-clientes th { background-color: #1a1a2e; color: white; }
.btn-editar { background: #f39c12; color: white; border: none; padding: 5px 10px; border-radius: 3px; cursor: pointer; }
.btn-excluir { background: #e74c3c; color: white; border: none; padding: 5px 10px; border-radius: 3px; cursor: pointer; margin-left: 5px;}