/* ================================================
   BEMFICA MACHADO - HEADER E NAVEGAÇÃO
   Arquivo: header.css
   Descrição: Estilos do header, navegação e menu
   ================================================ */

/* Header Principal - 100% Transparente */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 4rem;
    z-index: 9999;
    background: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
    border: none !important;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header:hover {
    background: none !important;
}

/* Navegação */
nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

/* Links de Navegação */
.nav-link {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.1rem;
    text-transform: uppercase;
    position: relative;
    transition: color 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    cursor: pointer;
    text-shadow:
        0 0 20px rgba(0, 0, 0, 1),
        0 2px 4px rgba(0, 0, 0, 1),
        2px 2px 8px rgba(0, 0, 0, 0.9);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 1px;
    background: var(--gold);
    transition: width 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.nav-link:hover,
.nav-link.active {
    color: var(--gold);
    text-shadow:
        0 0 20px rgba(0, 0, 0, 1),
        0 0 10px rgba(0, 0, 0, 1),
        0 2px 4px rgba(0, 0, 0, 1),
        0 0 15px rgba(212, 175, 55, 0.5);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Back Arrow */
.back-arrow-container {
    position: fixed;
    top: 50%;
    left: 2rem;
    transform: translateY(-50%);
    z-index: 11;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.back-arrow-container.visible {
    opacity: 1;
    visibility: visible;
}

.back-arrow {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--light);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.back-arrow:hover {
    background: rgba(212, 175, 55, 0.9);
    border-color: var(--gold);
    transform: translateX(-5px);
    box-shadow: 0 6px 30px rgba(212, 175, 55, 0.4);
}

/* Media Queries */
@media (max-width: 768px) {
    header {
        padding: 1rem 2rem;
    }

    nav {
        gap: 2rem;
    }

    .nav-link {
        font-size: 0.8rem;
    }

    .back-arrow-container {
        left: 1rem;
    }

    .back-arrow {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    header {
        padding: 0.5rem;
    }

    nav {
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .nav-link {
        font-size: 0.7rem;
        padding: 0.3rem 0.5rem;
    }
}