/**
 * Brake IQ - Navigation & Header Styling
 */

.header {
    height: var(--height-header);
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    background-color: transparent;
    border-bottom: 1px solid transparent;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(8, 13, 26, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    height: 70px;
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    color: var(--color-text-heading);
}

.logo-image {
    height: 38px;
    width: auto;
    display: block;
    transition: transform var(--transition-fast);
}

.logo:hover .logo-image {
    transform: scale(1.03);
}

/* Nav Menu */
.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    height: 100%;
}

.nav-item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-sm) var(--space-md);
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-item.active > .nav-link {
    color: var(--color-accent-primary);
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    min-width: 250px;
    padding: var(--space-sm);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all var(--transition-normal);
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.dropdown-link {
    display: block;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.dropdown-link:hover {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--color-accent-primary);
    padding-left: calc(var(--space-md) + var(--space-xs));
}

/* Hamburger Toggle Button */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle svg {
    width: 24px;
    height: 24px;
}