:root {
    --primary-color: #FFD700; /* Amarelo */
    --secondary-color: #000000; /* Preto */
    --dark-bg: #1A1A1A;
    --light-text: #FFFFFF;
    --text-color: #333333;
    --transition: all 0.3s ease;
}

/* Header Atualizado */
.futuristic-header {
    background-color: rgba(0, 0, 0, 0.9); /* Fundo escuro */
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 2px solid var(--primary-color);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container .logo {
    height: 80px; /* Logo maior */
    transition: var(--transition);
    filter: brightness(0) invert(1); /* Logo branco */
}

.logo-container .logo:hover {
    transform: scale(1.05);
    filter: brightness(0) invert(75%) sepia(100%) saturate(500%) hue-rotate(0deg); /* Logo amarelo no hover */
}

/* Navegação Atualizada */
.futuristic-nav .main-menu {
    display: flex;
    list-style: none;
}

.futuristic-nav .main-menu li {
    margin-left: 25px;
    position: relative;
}

.futuristic-nav .main-menu li a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 700; /* Negrito */
    font-size: 16px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition);
    display: flex;
    align-items: center;
    padding: 10px 0;
}

.menu-icon {
    margin-right: 8px;
    font-size: 1.1rem;
    color: var(--primary-color);
}

.futuristic-nav .main-menu li a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    background: var(--primary-color);
    bottom: 0;
    left: 0;
    transition: var(--transition);
}

.futuristic-nav .main-menu li a:hover:after,
.futuristic-nav .main-menu li a.active:after {
    width: 100%;
}

.futuristic-nav .main-menu li a:hover {
    color: var(--primary-color);
}

.futuristic-nav .main-menu li a.active {
    color: var(--primary-color);
}

/* Menu Mobile */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--light-text);
    transition: var(--transition);
}

/* Responsivo */
@media (max-width: 992px) {
    .futuristic-nav .main-menu {
        position: fixed;
        top: 90px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 90px);
        background-color: rgba(0, 0, 0, 0.95);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 30px;
        transition: var(--transition);
        z-index: 999;
    }

    .futuristic-nav .main-menu.active {
        left: 0;
    }

    .futuristic-nav .main-menu li {
        margin: 0 0 30px 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}