/**
 * Navigation Bar Styles
 * The Heart of Gold
 */

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-nav);
    padding: var(--space-lg) var(--space-xl);
    padding-top: calc(var(--space-lg) + var(--safe-top));
    background: linear-gradient(
        180deg,
        rgba(19, 3, 53, 0.85) 0%,
        rgba(21, 1, 61, 0.7) 60%,
        transparent 100%
    );
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.nav-content {
    max-width: var(--container-2xl);
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.nav-item {
    position: relative;
}

.nav-link {
    font-family: var(--font-pixel);
    font-size: var(--fs-base);
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--space-sm) var(--space-md);
    position: relative;
    transition: 
        color var(--transition-normal),
        text-shadow var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-icon {
    font-size: 0.85em;
    transition: 
        transform var(--transition-normal),
        color var(--transition-normal),
        filter var(--transition-normal);
}

/* Underline effect */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-pink-main), var(--color-pink-light));
    transform: translateX(-50%);
    transition: width var(--transition-normal);
    box-shadow: 0 0 10px rgba(196, 30, 92, 0.5);
}

.nav-link:hover {
    color: var(--color-pink-main);
    text-shadow: 0 0 10px rgba(196, 30, 92, 0.5);
}

.nav-link:hover .nav-icon {
    color: var(--color-pink-light);
    filter: drop-shadow(0 0 6px rgba(196, 30, 92, 0.6));
}

.nav-link:hover::after {
    width: 80%;
}

.nav-link.active {
    color: var(--color-pink-light);
}

.nav-link.active::after {
    width: 100%;
    background: var(--color-pink-light);
}

/* Submenu arrow rotation */
.nav-item.has-submenu .nav-icon {
    opacity: 0.7;
    transition: 
        opacity var(--transition-normal),
        transform var(--transition-normal);
}

.nav-item.has-submenu:hover .nav-icon,
.nav-item.has-submenu.is-open .nav-icon {
    opacity: 1;
    transform: translateY(2px);
}

/* Settings gear rotation */
.nav-item[data-section="settings"] .nav-icon {
    transition: transform 500ms ease;
}

.nav-item[data-section="settings"]:hover .nav-icon {
    transform: rotate(90deg);
}

/* Submenu */
.nav-submenu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    margin-top: var(--space-sm);
    background: linear-gradient(
        180deg,
        rgba(20, 4, 59, 0.95) 0%,
        rgba(23, 4, 38, 0.98) 100%
    );
    border: 2px solid rgba(196, 30, 92, 0.3);
    border-radius: var(--radius-md);
    padding: var(--space-sm) 0;
    min-width: 180px;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 20px rgba(196, 30, 92, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    flex-direction: column;
    gap: var(--space-xs);
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transition: 
        opacity var(--transition-normal),
        visibility var(--transition-normal),
        transform var(--transition-normal);
}

/* Submenu arrow */
.nav-submenu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid rgba(196, 30, 92, 0.3);
}

.nav-submenu::after {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid rgba(20, 4, 59, 0.95);
}

/* Show submenu */
.nav-item.has-submenu:hover .nav-submenu,
.nav-item.has-submenu.is-open .nav-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    display: flex;
}

.nav-submenu-item {
    font-family: var(--font-pixel-alt);
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    padding: var(--space-sm) var(--space-md);
    transition: 
        color var(--transition-fast),
        background var(--transition-fast),
        padding var(--transition-fast);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    text-decoration: none;
}

.nav-submenu-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 60%;
    background: linear-gradient(90deg, var(--color-pink-main), transparent);
    transition: width var(--transition-fast);
}

.nav-submenu-item:hover {
    color: var(--color-text-primary);
    background: rgba(196, 30, 92, 0.15);
    padding-left: var(--space-lg);
}

.nav-submenu-item:hover::before {
    width: 3px;
}

/* External link icon */
.nav-external-icon {
    font-size: 0.7em;
    opacity: 0.6;
    margin-left: var(--space-xs);
    transition: 
        opacity var(--transition-fast),
        transform var(--transition-fast);
}

.nav-submenu-item:hover .nav-external-icon {
    opacity: 1;
    transform: translate(2px, -2px);
}