/* Mobile-First CSS - Enhanced Mobile Experience */

/* CSS Variables for Mobile */
:root {
    --mobile-header-height: 60px;
    --mobile-fab-size: 56px;
    --mobile-nav-width: 280px;
    --touch-target-size: 44px;
    --mobile-padding: 16px;
    --animation-duration: 0.3s;
}

/* Mobile Navigation Overlay */
.mobile-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: var(--mobile-nav-width);
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-right: 1px solid #0ff;
    z-index: 9999;
    transition: left var(--animation-duration) ease-in-out;
    overflow-y: auto;
}

.mobile-nav.active {
    left: 0;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--mobile-padding);
    border-bottom: 1px solid #333;
    background: rgba(0, 255, 255, 0.1);
}

.mobile-nav-header h3 {
    color: #0ff;
    margin: 0;
    font-size: 18px;
}

.mobile-nav-close {
    background: none;
    border: 1px solid #0ff;
    color: #0ff;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.mobile-nav-close:hover {
    background: #0ff;
    color: #000;
}

.mobile-nav-content {
    padding: var(--mobile-padding);
}

.mobile-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    margin-bottom: 8px;
    background: rgba(0, 255, 255, 0.05);
    border: 1px solid #333;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: var(--touch-target-size);
}

.mobile-nav-item:hover,
.mobile-nav-item:active {
    background: rgba(0, 255, 255, 0.15);
    border-color: #0ff;
    transform: translateX(4px);
}

.mobile-nav-item .nav-icon {
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.mobile-nav-item span:last-child {
    color: #fff;
    font-weight: 500;
}

/* Floating Action Button */
.mobile-fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: var(--mobile-fab-size);
    height: var(--mobile-fab-size);
    background: linear-gradient(45deg, #0ff, #00a8cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #000;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 255, 255, 0.4);
    z-index: 9998;
    transition: all 0.3s ease;
    user-select: none;
}

.mobile-fab:hover,
.mobile-fab:active {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 255, 255, 0.6);
}

/* Mobile Overlay for Navigation */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9997;
    opacity: 0;
    visibility: hidden;
    transition: all var(--animation-duration) ease;
}

.mobile-nav.active + .mobile-nav-overlay {
    opacity: 1;
    visibility: visible;
}

/* Enhanced Touch Targets */
@media (max-width: 768px) {
    /* Ensure all interactive elements are touch-friendly */
    button,
    .desktop-icon,
    .window-control,
    .taskbar-item,
    .start-menu-item {
        min-width: var(--touch-target-size);
        min-height: var(--touch-target-size);
        touch-action: manipulation;
    }

    /* Desktop Icons - Better Touch Experience */
    .desktop-icon {
        width: 70px;
        height: 90px;
        padding: 8px;
        border-radius: 12px;
        transition: all 0.2s ease;
        position: relative;
        overflow: hidden;
    }

    .desktop-icon::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 255, 255, 0.1);
        opacity: 0;
        transition: opacity 0.2s ease;
        border-radius: 12px;
    }

    .desktop-icon:active::before {
        opacity: 1;
    }

    .icon-image {
        width: 40px;
        height: 40px;
        font-size: 22px;
        margin-bottom: 4px;
    }

    .icon-label {
        font-size: 10px;
        line-height: 1.2;
        text-align: center;
        word-break: break-word;
    }

    /* Windows - Mobile Optimized */
    .window {
        border-radius: 12px 12px 0 0;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
        max-height: 90vh;
        overflow: hidden;
    }

    .window-header {
        height: var(--mobile-header-height);
        padding: 0 var(--mobile-padding);
        display: flex;
        align-items: center;
        justify-content: space-between;
        background: linear-gradient(90deg, rgba(0, 255, 255, 0.1), rgba(0, 255, 255, 0.05));
        backdrop-filter: blur(10px);
        border-bottom: 1px solid #0ff;
    }

    .window-title {
        font-size: 16px;
        font-weight: 600;
        color: #0ff;
    }

    .window-controls {
        display: flex;
        gap: 8px;
    }

    .window-control {
        width: 36px;
        height: 36px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid #333;
        color: #fff;
        cursor: pointer;
        transition: all 0.2s ease;
        font-size: 14px;
    }

    .window-control:hover,
    .window-control:active {
        background: rgba(0, 255, 255, 0.2);
        border-color: #0ff;
    }

    .window-content {
        padding: var(--mobile-padding);
        max-height: calc(90vh - var(--mobile-header-height));
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Terminal - Mobile Optimized */
    .terminal-container {
        background: rgba(0, 0, 0, 0.9);
        border-radius: 8px;
        padding: var(--mobile-padding);
    }

    .terminal-output {
        max-height: 300px;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        margin-bottom: 12px;
        font-size: 12px;
        line-height: 1.4;
    }

    .terminal-input-container {
        display: flex;
        gap: 8px;
        align-items: center;
        background: rgba(0, 255, 255, 0.1);
        padding: 8px;
        border-radius: 6px;
        border: 1px solid #0ff;
    }

    .terminal-prompt {
        color: #0ff;
        font-size: 11px;
        white-space: nowrap;
    }

    .terminal-input {
        flex: 1;
        background: transparent;
        border: none;
        color: #fff;
        font-family: 'Courier New', monospace;
        font-size: 14px;
        outline: none;
        padding: 4px;
    }

    /* Music Player - Mobile Optimized */
    .music-player {
        padding: var(--mobile-padding);
    }

    .track-list,
    .albums-list {
        max-height: 200px;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .track-item,
    .album-item {
        padding: 12px;
        border-radius: 8px;
        margin-bottom: 8px;
        background: rgba(0, 255, 255, 0.05);
        border: 1px solid #333;
        transition: all 0.2s ease;
    }

    .track-item:active,
    .album-item:active {
        background: rgba(0, 255, 255, 0.15);
        transform: scale(0.98);
    }

    /* Projects Grid - Mobile Optimized */
    .projects-grid {
        display: flex;
        flex-direction: column;
        gap: var(--mobile-padding);
    }

    .project-card {
        background: rgba(0, 255, 255, 0.05);
        border: 1px solid #333;
        border-radius: 12px;
        padding: var(--mobile-padding);
        transition: all 0.2s ease;
    }

    .project-card:active {
        background: rgba(0, 255, 255, 0.1);
        transform: translateY(-2px);
    }

    /* Start Menu - Mobile Optimized */
    .start-menu {
        bottom: 60px;
        left: var(--mobile-padding);
        width: calc(100% - 2 * var(--mobile-padding));
        max-width: 300px;
        border-radius: 12px;
        backdrop-filter: blur(10px);
        background: rgba(0, 0, 0, 0.9);
    }

    .start-menu-item {
        padding: 12px var(--mobile-padding);
        min-height: var(--touch-target-size);
        display: flex;
        align-items: center;
        transition: all 0.2s ease;
    }

    .start-menu-item:active {
        background: rgba(0, 255, 255, 0.2);
    }

    /* Taskbar - Mobile Optimized */
    .taskbar {
        height: 50px;
        padding: 0 var(--mobile-padding);
        background: rgba(0, 0, 0, 0.9);
        backdrop-filter: blur(10px);
    }

    .start-button {
        height: 36px;
        padding: 0 12px;
        border-radius: 8px;
        font-size: 12px;
    }

    .taskbar-item {
        height: 36px;
        padding: 0 8px;
        border-radius: 6px;
        font-size: 11px;
        min-width: 60px;
    }

    /* Loading Screen - Mobile Optimized */
    .loading-text {
        font-size: 16px;
        text-align: center;
        margin-bottom: 20px;
    }

    .loading-bar {
        width: 80%;
        max-width: 300px;
        height: 8px;
        border-radius: 4px;
    }

    /* Hide matrix rain on very small screens */
    @media (max-width: 480px) {
        #matrix-rain {
            opacity: 0.05 !important;
        }
    }

    /* Disable hover effects on touch devices */
    @media (hover: none) {
        .desktop-icon:hover,
        .window-control:hover,
        .mobile-nav-item:hover {
            transform: none;
            background: inherit;
        }
    }
}

/* Landscape orientation optimizations */
@media (max-width: 768px) and (orientation: landscape) {
    .mobile-nav {
        width: 240px;
    }

    .window {
        max-height: 85vh;
    }

    .window-content {
        max-height: calc(85vh - var(--mobile-header-height));
    }

    .mobile-fab {
        bottom: 15px;
        right: 15px;
    }
}

/* High DPI mobile displays */
@media (max-width: 768px) and (-webkit-min-device-pixel-ratio: 2) {
    .icon-image {
        border-width: 0.5px;
    }

    .window {
        border-width: 0.5px;
    }

    .mobile-nav {
        border-right-width: 0.5px;
    }
}

/* Accessibility improvements for mobile */
@media (max-width: 768px) {
    /* Focus indicators */
    .desktop-icon:focus,
    .window-control:focus,
    .mobile-nav-item:focus,
    .terminal-input:focus {
        outline: 2px solid #0ff;
        outline-offset: 2px;
    }

    /* Reduce motion for users who prefer it */
    @media (prefers-reduced-motion: reduce) {
        * {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }
    }
}

/* Dark mode specific mobile adjustments */
@media (max-width: 768px) and (prefers-color-scheme: dark) {
    .mobile-nav {
        background: rgba(0, 0, 0, 0.98);
    }

    .window {
        background: rgba(0, 0, 0, 0.95);
    }
}