body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 10px;
    background-color: #f8f9fa; /* Fundo de cor diferente */
}

@media (max-width: 768px) {
    body {
        min-height: 40vh;
    }
}

.container {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 800px;
}

h1 {
    color: #343a40;
}

.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: #666;
}

input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    width: 100%;
    padding: 0.75rem;
    background: #007BFF;
    border: none;
    border-radius: 4px;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

button:hover {
    background: #0056b3;
}

.hidden {
    display: none;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    padding: 0.75rem;
    border: 1px solid #ddd;
    text-align: left;
}

th {
    background: #f9f9f9;
}

.action-btn {
    background: #28a745;
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 4px;
}

.action-btn:hover {
    background: #218838;
}

.alert {
    margin-top: 16px;
    padding: 1rem;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alert-warning {
    margin-top: 16px;
    padding: 1rem;
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
    border-radius: 4px;
    margin-bottom: 1rem;
}

h1 {
    color: #343a40;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffeeba;
    color: #856404;
}

.table-responsive {
    margin-top: 1rem;
}