/* ==========================================================================
   Mobile Gesture Navigation Bar
   iOS-like bottom navigation for mobile mode
   ========================================================================== */

/**
 * PURPOSE: Provide slim gesture navigation bar that replaces dock when app is open
 * DESIGN: Mimics iOS home indicator bar - minimal, gesture-friendly
 * INVARIANT: Only visible when an app window is open in mobile mode
 */

#mobile-gesture-nav-bar {
    bottom: 10px;
    left: auto;
    right: auto;
    top: auto;
    width: auto;
    min-width: 60px;
    height: 44px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(20px);
    border-radius: 22px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    padding: 0 16px;
}

#mobile-gesture-nav-bar.light {
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

html.dark #mobile-gesture-nav-bar {
    background: rgba(15, 15, 17, 0.8);
}

/**
 * Home button styling
 * DESIGN: Large touch target (44px minimum) for reliable mobile interaction
 */

.mobile-gesture-nav-home-btn {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
    padding: 0;
    transition: all 150ms ease-in-out;
    color: inherit;
}

.mobile-gesture-nav-home-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.1);
}

.mobile-gesture-nav-home-btn:active {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(0.95);
}

html.dark .mobile-gesture-nav-home-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

html.dark .mobile-gesture-nav-home-btn:active {
    background: rgba(255, 255, 255, 0.15);
}

/* Light mode color adjustments */

html.light #mobile-gesture-nav-bar {
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

html.light .mobile-gesture-nav-home-btn {
    color: #1c1c1e;
}

html.light .mobile-gesture-nav-home-btn:hover {
    background: rgba(0, 0, 0, 0.08);
}

html.light .mobile-gesture-nav-home-btn:active {
    background: rgba(0, 0, 0, 0.12);
}

/* Dark mode color adjustments */

html.dark #mobile-gesture-nav-bar {
    background: rgba(38, 41, 48, 0.85);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

html.dark .mobile-gesture-nav-home-btn {
    color: #f3f4f6;
}

html.dark .mobile-gesture-nav-home-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

html.dark .mobile-gesture-nav-home-btn:active {
    background: rgba(255, 255, 255, 0.15);
}

/* Ensure smooth dock transitions */

#dock {
    transition: opacity 200ms ease-in-out;
}

/* Mobile screens should always be above gesture nav */

#mobile-screens-wrapper {
    z-index: 1999;
}

/* Hide home/launchpad layer while an app window is active to prevent icon overlay above apps. */
#mobile-screens-wrapper.mobile-screens-wrapper--app-open {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

/* Accessibility: Reduce motion if preferred */

@media (prefers-reduced-motion: reduce) {
    #mobile-gesture-nav-bar,
    #dock,
    .mobile-gesture-nav-home-btn {
        transition: opacity 100ms linear !important;
    }

    .mobile-gesture-nav-home-btn:hover {
        transform: none !important;
    }

    .mobile-gesture-nav-home-btn:active {
        transform: none !important;
    }
}

/* Dock visibility states */

#dock.mobile-gesture-nav-hidden {
    opacity: 0 !important;
    pointer-events: none !important;
    visibility: hidden !important;
}

#dock.mobile-gesture-nav-visible {
    opacity: 1 !important;
    pointer-events: auto !important;
    visibility: visible !important;
}

#mobile-gesture-nav-bar.mobile-gesture-nav-visible {
    opacity: 1 !important;
    pointer-events: auto !important;
    visibility: visible !important;
}

#mobile-gesture-nav-bar.mobile-gesture-nav-hidden {
    opacity: 0 !important;
    pointer-events: none !important;
    visibility: hidden !important;
}