/* Navigation Header Styles */
:root {
    --nav-height: 60px;
}

.polsia-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: #1a1a2e;
    border-bottom: 1px solid #27272a;
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 24px;
}

.nav-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.25rem;
    font-weight: 700;
    color: #10b981;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-brand::before {
    content: ">";
    opacity: 0.5;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-links a {
    color: #a1a1aa;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.nav-links a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fafafa;
}

.nav-links a.active {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}

/* Mobile Menu Button */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-hamburger span {
    width: 24px;
    height: 2px;
    background: #a1a1aa;
    transition: all 0.3s ease;
}

.nav-hamburger:hover span {
    background: #fafafa;
}

/* Body padding to account for fixed nav */
body {
    padding-top: var(--nav-height);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: #1a1a2e;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 16px;
        border-bottom: 1px solid #27272a;
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.3s ease;
        pointer-events: none;
    }

    .nav-links.visible {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-links a {
        padding: 12px 16px;
    }

    .nav-hamburger {
        display: flex;
    }

    .polsia-nav {
        padding: 0 16px;
    }
}