/**
 * GuHePe - Header/Navigation Styles
 * ==================================
 * Estilos do cabeçalho e navegação
 */

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--spacing-lg) 0;
    transition: background-color var(--transition-normal);
}

@media (min-width: 768px) {
    .header {
        padding: var(--spacing-md) 0;
    }
}

.header.scrolled {
    background-color: rgba(9, 9, 11, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
}

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

/* ===== LOGO ===== */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.logo img {
    height: 40px;
    width: 40px;
    object-fit: contain;
}

.logo:hover {
    opacity: 0.8;
}

/* ===== NAVIGATION ===== */
.nav {
    display: none;
    align-items: center;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }
}

.nav-link {
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-normal);
}

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

/* ===== MOBILE MENU BUTTON ===== */
.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: var(--text-primary);
    background: transparent;
    border: none;
    cursor: pointer;
}

@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }
}

.menu-toggle svg {
    width: 28px;
    height: 28px;
}

/* ===== MOBILE MENU ===== */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background-color: rgba(9, 9, 11, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-header {
    display: flex;
    justify-content: flex-end;
    padding: var(--spacing-lg);
}

.mobile-menu-close {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-close svg {
    width: 28px;
    height: 28px;
}

.mobile-menu-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
}

.mobile-menu-link {
    font-size: var(--font-size-2xl);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.mobile-menu-link:hover {
    color: var(--text-primary);
}