/* Fundo e sobreposição */
.background-overlay {
    background: url('background.png') no-repeat center center/cover;
    height: 100vh;
    position: relative;
    color: #fff;
}

.background-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

header, main {
    position: relative;
    z-index: 2;
}

/* Abas */
.nav-tabs .nav-link {
    color: #fff;
    background-color: transparent;
    border: none;
}

.nav-tabs .nav-link.active {
    background-color: #ff4d4d;
    color: #fff;
    border: none;
}

.nav-tabs .nav-link:hover {
    background-color: rgba(255, 77, 77, 0.8);
}

/* Input de busca */
input[type="text"] {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(5px);
    border: none;
    padding: 10px;
    border-radius: 5px;
    outline: none;
    color: #333;
}

input[type="text"]::placeholder {
    color: #555;
}

/* Botão */
button.btn-danger {
    background-color: #ff4d4d;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

button.btn-danger:hover {
    background-color: #e03e3e;
}