.barra-fixa,
.barra-fixa * {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 1rem;
    box-sizing: border-box;
}

.barra-fixa {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #0d47a1;
    display: flex;
    justify-content: center;
    padding: 1rem 2rem;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
}

.header-container h1 {
    color: white;
    margin: 0;
    font-size: 1.5rem;
    cursor: pointer;
}

.barra-fixa nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.barra-fixa nav button {
    background-color: #1565c0;
    color: white;
    border: 1px solid #0d47a1;
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.3s;
}

.barra-fixa nav button:hover {
    background-color: #1e88e5;
}

.barra-fixa nav button.btn-sucesso {
    background-color: #28a745;
    border-color: #218838;
}

.barra-fixa nav button.btn-sucesso:hover {
    background-color: #218838;
}

.barra-fixa nav button.btn-perigo {
    background-color: #dc3545;
    border-color: #c82333;
}

.barra-fixa nav button.btn-perigo:hover {
    background-color: #c82333;
}