.nav-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: hsl(var(--background));
    height: auto;
    min-height: 40px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid hsl(var(--border));
}

.nav-inner {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 16px;
    height: 100%;
}

.nav-content {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 8px;
}

.auth-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.login-container,
.theme-container {
    position: relative;
}

.login-button,
.theme-toggle {
    background: hsl(var(--accent));
    border: 1px solid hsl(var(--border));
    color: hsl(var(--accent-foreground));
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.login-button:hover,
.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px hsla(var(--primary), 0.5);
}

.login-menu,
.theme-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: hsl(var(--popover));
    border: 1px solid hsl(var(--border));
    border-radius: 6px;
    min-width: 120px;
    z-index: 100;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    padding: 4px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.menu-item,
.theme-menu-item {
    width: 100%;
    padding: 8px 12px;
    background: transparent;
    border: none;
    color: hsl(var(--foreground));
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    border-radius: 4px;
}

.menu-item:hover,
.theme-menu-item:hover {
    background: hsl(var(--accent));
    color: hsl(var(--accent-foreground));
}

.active-theme {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
}

.scroll-btn {
    background: hsl(var(--accent));
    border: 1px solid hsl(var(--border));
    color: hsl(var(--accent-foreground));
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    flex-shrink: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px hsla(var(--primary), 0.5);
}

.scroll-btn:active {
    transform: scale(0.95);
}

.nav-scroll {
    flex: 1;
    overflow-x: auto;
    overflow-y: hidden;
    height: 100%;
    -ms-overflow-style: none;
    scrollbar-width: none;
    scroll-behavior: smooth;
    position: relative;
}

.nav-scroll::-webkit-scrollbar {
    display: none;
}

.nav-items {
    display: flex;
    align-items: center;
    height: 100%;
    white-space: nowrap;
    gap: 3px;
    padding: 0 8px;
}

.nav-item {
    position: relative;
    background: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    color: hsl(var(--foreground));
    font-size: 13px;
    font-weight: 500;
    padding: 6px 14px;
    cursor: pointer;
    border-radius: 6px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s ease;
    overflow: hidden;
    min-width: 70px;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(var(--neon-color-rgb, 0, 255, 255), 0.2), transparent);
    transition: left 0.5s;
}

.nav-item:hover::before {
    left: 100%;
}

.nav-item:hover {
    border-color: var(--neon-color, hsl(var(--primary)));
    color: var(--neon-color, hsl(var(--primary)));
    box-shadow: 0 0 15px rgba(var(--neon-color-rgb, 0, 255, 255), 0.3);
    text-shadow: 0 0 6px rgba(var(--neon-color-rgb, 0, 255, 255), 0.4);
}

.nav-item.active {
    border-color: var(--neon-color, hsl(var(--primary)));
    color: var(--neon-color, hsl(var(--primary)));
    box-shadow: 0 0 20px rgba(var(--neon-color-rgb, 0, 255, 255), 0.4);
    text-shadow: 0 0 8px rgba(var(--neon-color-rgb, 0, 255, 255), 0.6);
}

.nav-item.active:hover {
    box-shadow: 0 0 25px rgba(var(--neon-color-rgb, 0, 255, 255), 0.6);
}

.neon-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, transparent, rgba(var(--neon-color-rgb, 0, 255, 255), 0.3), transparent);
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.nav-item:hover .neon-glow,
.nav-item.active .neon-glow {
    opacity: 1;
}

.nav-spacer {
    height: 40px;
}

/* Set CSS custom properties for each neon color */
.nav-item[style*="--neon-color: #25D366"] {
    --neon-color-rgb: 37, 211, 102;
}

.nav-item[style*="--neon-color: #6366F1"] {
    --neon-color-rgb: 99, 102, 241;
}

.nav-item[style*="--neon-color: #FFD700"] {
    --neon-color-rgb: 255, 215, 0;
}

.nav-item[style*="--neon-color: #10B981"] {
    --neon-color-rgb: 16, 185, 129;
}

.nav-item[style*="--neon-color: #2563EB"] {
    --neon-color-rgb: 37, 99, 235;
}

.nav-item[style*="--neon-color: #8B5CF6"] {
    --neon-color-rgb: 139, 92, 246;
}

.nav-item[style*="--neon-color: #059669"] {
    --neon-color-rgb: 5, 150, 105;
}

.nav-item[style*="--neon-color: #DC2626"] {
    --neon-color-rgb: 220, 38, 38;
}

.nav-item[style*="--neon-color: #1DB954"] {
    --neon-color-rgb: 29, 185, 84;
}

.nav-item[style*="--neon-color: #F59E0B"] {
    --neon-color-rgb: 245, 158, 11;
}

.nav-item[style*="--neon-color: #6B7280"] {
    --neon-color-rgb: 107, 114, 128;
}

@media (max-width: 768px) {
    .nav-container {
        height: 44px;
    }

    .nav-spacer {
        height: 44px;
    }

    .nav-inner {
        padding: 0 12px;
    }

    .nav-content {
        gap: 6px;
    }

    .scroll-btn {
        width: 30px;
        height: 30px;
        font-size: 16px;
    }

    .theme-toggle,
    .login-button {
        width: 30px;
        height: 30px;
        font-size: 14px;
    }

    .nav-item {
        font-size: 13px;
        padding: 8px 16px;
        height: 36px;
        margin: 0 2px;
    }

    .nav-items {
        gap: 6px;
        padding: 0 8px;
    }

    .auth-controls {
        gap: 6px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        height: 48px;
    }

    .nav-spacer {
        height: 48px;
    }

    .nav-inner {
        padding: 0 8px;
    }

    .nav-content {
        gap: 6px;
    }

    .scroll-btn {
        width: 28px;
        height: 28px;
        font-size: 16px;
    }

    .theme-toggle,
    .login-button {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }

    .nav-item {
        font-size: 12px;
        padding: 10px 14px;
        height: 34px;
        margin: 0 2px;
    }

    .nav-items {
        gap: 4px;
        padding: 0 6px;
    }

    .auth-controls {
        gap: 4px;
    }
}

@media (max-width: 320px) {
    .nav-inner {
        padding: 0 6px;
    }

    .nav-content {
        gap: 4px;
    }

    .nav-item {
        padding: 8px 12px;
        height: 32px;
        font-size: 11px;
    }

    .nav-items {
        gap: 3px;
        padding: 0 4px;
    }

    .theme-toggle,
    .login-button {
        width: 26px;
        height: 26px;
        font-size: 11px;
    }

    .scroll-btn {
        width: 26px;
        height: 26px;
        font-size: 14px;
    }
}

/* Touch-friendly scrolling for mobile */
@media (hover: none) and (pointer: coarse) {
    .nav-scroll {
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
    }

    .nav-item {
        scroll-snap-align: start;
    }
}