/* Navigation Component */

.glitch-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--space-16);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--space-8);
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--rot-border);
    z-index: var(--z-sticky);
    transition: transform 0.3s ease;
}

/* Nav Logo/Brand */
.nav-brand {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    color: var(--rot-surface);
    text-transform: uppercase;
    text-decoration: none;
    background: var(--rot-text-main);
    padding: var(--space-2) var(--space-4);
    clip-path: polygon(0 0,
            100% 0,
            95% 100%,
            0 100%);
    transition: all 0.2s ease;
}

.nav-brand:hover {
    background: var(--rot-cyan);
    color: var(--rot-void);
    clip-path: polygon(5% 0,
            100% 0,
            100% 100%,
            0 100%);
}

/* Nav Links */
.nav-links {
    display: flex;
    gap: var(--space-6);
    list-style: none;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--rot-aqua);
    text-transform: uppercase;
    text-decoration: none;
    position: relative;
    padding: var(--space-2) var(--space-3);
    transition: all 0.2s ease;
    text-shadow: 0 0 8px var(--rot-aqua), 0 0 16px rgba(0, 255, 255, 0.3);
    border: 1px solid rgba(0, 255, 255, 0.3);
    background: rgba(0, 255, 255, 0.05);
}

.nav-link::before {
    content: '[';
    margin-right: var(--space-2);
    opacity: 0;
    color: var(--rot-magenta);
    transition: opacity 0.2s ease, transform 0.2s ease;
    display: inline-block;
}

.nav-link::after {
    content: ']';
    margin-left: var(--space-2);
    opacity: 0;
    color: var(--rot-magenta);
    transition: opacity 0.2s ease, transform 0.2s ease;
    display: inline-block;
}

.nav-link:hover {
    color: var(--rot-magenta);
    text-shadow: 0 0 10px var(--rot-magenta), 0 0 20px var(--rot-magenta), 0 0 30px rgba(255, 0, 255, 0.5);
    border-color: var(--rot-magenta);
    background: rgba(255, 0, 255, 0.1);
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.4), inset 0 0 10px rgba(255, 0, 255, 0.1);
}

.nav-link:hover::before {
    opacity: 1;
    transform: translateX(0);
    color: var(--rot-magenta);
}

.nav-link:hover::after {
    opacity: 1;
    transform: translateX(0);
    color: var(--rot-magenta);
}

/* Nav Link Glitch Animation */
@keyframes navLinkGlitch {
    0%, 100% {
        transform: none;
        text-shadow: 0 0 8px var(--rot-aqua), 0 0 16px rgba(0, 255, 255, 0.3);
    }
    25% {
        transform: translateX(-2px) skewX(-2deg);
        text-shadow: -3px 0 var(--rot-magenta), 3px 0 var(--rot-aqua), 0 0 10px var(--rot-aqua);
    }
    50% {
        transform: translateX(2px) skewX(2deg);
        text-shadow: 3px 0 var(--rot-magenta), -3px 0 var(--rot-aqua), 0 0 15px var(--rot-magenta);
    }
    75% {
        transform: translateX(-1px) skewX(-1deg);
        text-shadow: -2px 0 var(--rot-aqua), 2px 0 var(--rot-magenta), 0 0 8px var(--rot-aqua);
    }
}

.nav-link {
    animation: navLinkGlitch 0.3s ease-in-out;
    animation-delay: calc(var(--glitch-delay, 8s) + (var(--nav-index, 0) * 0.1s));
    animation-iteration-count: 1;
}

/* Stagger animation for each nav link */
.nav-links li:nth-child(1) .nav-link { --nav-index: 0; }
.nav-links li:nth-child(2) .nav-link { --nav-index: 1; }
.nav-links li:nth-child(3) .nav-link { --nav-index: 2; }

/* Periodic glitch - re-trigger via JS */
.nav-link.glitch-now {
    animation: navLinkGlitch 0.3s ease-in-out;
}

/* Scanline effect on nav bar */
.glitch-nav::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 2px,
        rgba(0, 255, 255, 0.03) 2px,
        rgba(0, 255, 255, 0.03) 4px
    );
    pointer-events: none;
    z-index: -1;
}

/* Animated neon line at bottom of nav */
.glitch-nav::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--rot-aqua) 20%,
        var(--rot-magenta) 50%,
        var(--rot-aqua) 80%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: navNeonSweep 4s linear infinite;
}

@keyframes navNeonSweep {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Hide Nav on scroll down (optional enhancement, sticking to always visible for now) */
body.nav-hidden .glitch-nav {
    transform: translateY(-100%);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .glitch-nav {
        padding: 0 var(--space-4);
    }

    .nav-brand {
        font-size: var(--text-md);
    }

    .nav-links {
        gap: var(--space-2);
    }

    .nav-link {
        font-size: var(--text-xs);
        padding: var(--space-1) var(--space-2);
    }

    .nav-link span {
        display: none;
        /* Hide text on very small screens if needed, keeping icons mostly */
    }
}