/**
 * Estilos - Header/Navegação
 * 
 * Navegação fixa com glassmorphism e efeito neon
 */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-fixed);
    padding: var(--spacing-lg) 0;
    transition: all var(--duration-normal) var(--ease-out);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    box-shadow: 0 4px 20px rgba(255, 0, 0, 0.1);
    padding: var(--spacing-md) 0;
}

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

.logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--duration-normal) var(--ease-out);
}

.logo:hover {
    transform: scale(1.05);
    text-shadow: var(--neon-text-glow);
}

.logo-text {
    color: var(--text-primary);
}

.logo-accent {
    color: var(--primary-red);
    text-shadow: var(--neon-text-glow);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    position: relative;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    transition: all var(--duration-normal) var(--ease-out);
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-red);
    transition: width var(--duration-normal) var(--ease-out);
    box-shadow: var(--neon-glow-sm);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-red);
    text-shadow: var(--neon-text-glow);
}

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

/* Menu Hambúrguer (Mobile) */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    padding: var(--spacing-sm);
    cursor: pointer;
}

.menu-toggle span {
    width: 30px;
    height: 3px;
    background: var(--text-primary);
    border-radius: var(--border-radius-full);
    transition: all var(--duration-normal) var(--ease-out);
}

.menu-toggle:hover span {
    background: var(--primary-red);
    box-shadow: var(--neon-glow-sm);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Responsivo */
@media (max-width: 1024px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        flex-direction: column;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(var(--glass-blur-strong));
        width: 300px;
        height: calc(100vh - 80px);
        padding: var(--spacing-3xl) var(--spacing-xl);
        gap: var(--spacing-lg);
        border-left: var(--border-width-thin) solid var(--glass-border);
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
        transition: right var(--duration-slow) var(--ease-out);
        align-items: flex-start;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: var(--font-size-lg);
        width: 100%;
    }
}

@media (max-width: 640px) {
    .logo {
        font-size: var(--font-size-lg);
    }

    .nav-menu {
        width: 100%;
        top: 70px;
        height: calc(100vh - 70px);
    }
}