/* static/css/mobile.css */
/* ###############################################################################
   Common Mobile Styles (max-width: 768px)
   #############################################################################*/
@media (max-width: 768px) {
    /* Layout Structure */
    .container {
        margin: var(--spacing-md);
        border-radius: var(--radius-lg);
    }

    .layout-wrapper {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-md, --spacing-nm);
        margin-bottom: 20px;
    }

    .main-content {
        flex-direction: column;
        gap: var(--spacing-md, --spacing-nm);
    }

    .content-area {
        order: 1;
    }

    .sidebar {
        order: 2;
        width: 100%;
        position: relative;
        z-index: 2;
        margin-top: var(--spacing-nm);
    }

    .filter-section {
        position: relative;
        z-index: 3;
        margin-bottom: var(--spacing-nm);
    }

    .results-info {
        position: relative;
        z-index: 3;
        margin-bottom: var(--spacing-nm);
    }

    .accordion-layout {
        flex-direction: column; /* Switch to vertical on mobile */
    }

    .accordion-column {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        min-width: auto;
        min-height: 80px;
    }

    .accordion-column:last-child {
        border-bottom: none;
    }

    .guide-column {
        flex: 0 0 200px; /* Height instead of width on mobile */
    }

    .gallery-column {
        flex: 1;
        min-width: auto;
        min-height: 300px;
    }

    .resize-handle {
        width: 100%;
        height: 8px;
        cursor: row-resize; /* Row resize on mobile */
    }

    .resize-handle::before {
        width: 40px;
        height: 4px;
    }

    .guide-column-content,
    .gallery-column-content {
        padding: var(--spacing-no);
    }

    /* Grid Layouts */
    .folder-grid,
    .image-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }

    .folder-thumbnail,
    .image-thumbnail {
        height: 120px;
    }

    .folder-overlay {
        width: 28px;
        height: 28px;
    }

    /* Modal Image Optimization */
    .modal-image,
    .modal-content img {
        max-width: 100vw;
        max-height: 100vh;
        width: auto;
        height: auto;
        object-fit: contain;
    }

    /* Header */
    header h1 {
        font-size: var(--font-size-3xl);
    }

    /* Breadcrumb */
    .breadcrumb-container {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
        margin: var(--spacing-sm);
        padding: var(--spacing-md);
    }

    /* Ad Containers */
    .ad-top,
    .ad-bottom {
        min-height: 100px;
        margin: var(--spacing-sm) 0;
    }

    .ad-sidebar {
        min-height: 100px;
        margin: var(--spacing-md) 0;
        max-width: 100%;
    }

    /* Swipe Indicators */
    .swipe-indicators {
        bottom: calc(env(safe-area-inset-bottom) + var(--spacing-lg));
        scale: 0.9;
    }

    .nav-arrow {
        width: 56px;
        height: 56px;
        font-size: var(--font-size-3xl);
        padding: var(--spacing-md);
        min-width: 44px;
        min-height: 44px;
    }

    .nav-arrow:active {
        background: rgba(255, 255, 255, 0.4);
        transform: translateY(-50%) scale(0.9);
    }

    /* Image Title and Comments */
    .modal-image-title {
        bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom, 0px));
        left: var(--spacing-lg);
        font-size: var(--font-size-lg);
        padding: var(--spacing-sm) var(--spacing-md);
        max-width: calc(100vw - 140px);
    }

    .comments-icon {
        bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom, 0px));
        right: var(--spacing-lg);
        width: 44px;
        height: 44px;
    }
}

/* ###############################################################################
   Small Mobile Devices (max-width: 480px)
   #############################################################################*/
@media (max-width: 480px) {
    /* Container and Layout */
    .container {
        margin: var(--spacing-sm);
        border-radius: var(--radius-md);
    }

    .layout-wrapper {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .sidebar {
        width: 100%;
        margin-top: var(--spacing-md);
    }

    /* Grid Layouts */
    .folder-grid,
    .image-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: var(--spacing-sm);
    }

    .content-container {
        height: 500px;
    }

    .guide-column {
        flex: 0 0 150px;
    }

    .column-content {
        padding: var(--spacing-sm);
    }

    .resize-handle {
        height: 12px; /* Larger touch target on mobile */
    }

    /* Header */
    header {
        height: 200px;
    }

    header h1 {
        font-size: var(--font-size-2xl);
    }

    /* Modal Controls - Compact */
    .modal-content .close {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-3xl);
    }

    .nav-arrow {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-2xl);
    }

    /* Image Title and Comments - Compact */
    .modal-image-title {
        font-size: var(--font-size-sm);
        padding: var(--spacing-xs) var(--spacing-sm);
        bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom, 0px));
        left: var(--spacing-md);
        max-width: calc(100vw - 100px);
    }

    .comments-icon {
        width: 44px;
        height: 44px;
        bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom, 0px));
        right: var(--spacing-md);
    }

    .comments-icon img {
        width: 20px;
        height: 20px;
    }

    .comments-icon svg {
        width: 18px;
        height: 18px;
    }

    /* Compact Ad Containers */
    .ad-top,
    .ad-bottom,
    .ad-sidebar {
        min-height: 80px;
        margin: var(--spacing-xs) 0;
    }

    /* Content Adjustments */
    .content {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .section {
        margin-bottom: var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .section h2 {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-sm);
    }

    .section p {
        font-size: var(--spacing-md);
        line-height: var(--font-size-sm);
    }
}

/* ###############################################################################
   Landscape Orientation (max-width: 768px)
   #############################################################################*/
@media (max-width: 768px) and (orientation: landscape) {
    /* Layout Changes */
    .ad-top,
    .ad-bottom {
        min-height: 60px;
        margin: var(--spacing-xs) 0;
    }

    .ad-sidebar,
    .sidebar {
        display: none;
    }

    .main-content {
        flex-direction: row;
    }

    .content-area {
        width: 100%;
    }

    /* Image Title and Comments with Safe Area */
    .modal-image-title {
        bottom: max(var(--spacing-md), env(safe-area-inset-bottom, 0px) + var(--spacing-sm));
        left: max(var(--spacing-md), env(safe-area-inset-left, 0px) + var(--spacing-sm));
        font-size: var(--font-size-sm);
        max-width: calc(100vw - 120px);
    }

    .comments-icon {
        bottom: max(var(--spacing-md), env(safe-area-inset-bottom, 0px) + var(--spacing-sm));
        right: max(var(--spacing-md), env(safe-area-inset-right, 0px) + var(--spacing-sm));
        width: 44px;
        height: 44px;
    }
}

/* ###############################################################################
   Low Height Landscape (max-height: 500px)
   #############################################################################*/
@media (max-height: 500px) and (orientation: landscape) {
    .nav-arrow {
        width: 48px;
        height: 48px;
        font-size: var(--font-size-2xl);
    }

    .modal-content .close {
        width: 48px;
        height: 48px;
        font-size: var(--font-size-3xl);
    }

    .modal-image-title {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        bottom: var(--spacing-sm);
        left: var(--spacing-sm);
    }

    .comments-icon {
        width: 40px;
        height: 40px;
        bottom: var(--spacing-sm);
        right: var(--spacing-sm);
    }
}

/* ###############################################################################
   Touch Device Enhancements
   #############################################################################*/
@media (pointer: coarse) {
    .resize-handle {
        touch-action: none;
    }

    /* Make resize handle larger on touch devices */
    @media (max-width: 768px) {
        .resize-handle {
            height: 12px;
        }
    }

    @media (min-width: 769px) {
        .resize-handle {
            width: 12px;
        }
    }

    .column-header {
        min-height: 44px; /* Better touch target */
    }

    /* Enhanced Touch Targets */
    .nav-arrow {
        -webkit-tap-highlight-color: rgba(255, 255, 255, 0.3);
        touch-action: manipulation;
    }

    /* Touch Feedback */
    .nav-arrow:active {
        background: rgba(255, 255, 255, 0.4);
        border-color: rgba(255, 255, 255, 0.6);
        transform: translateY(-50%) scale(0.9);
    }

    .modal-content .close:active {
        transform: scale(0.9);
        background: rgba(0, 0, 0, 0.8);
    }

    .comments-icon:active {
        transform: scale(0.9);
        background: rgba(0, 0, 0, 0.8);
    }

    /* Touch-Friendly Elements */
    .folder-item,
    .image-item {
        min-height: 44px;
    }

    .ad-container {
        border-width: 1px;
        border-radius: var(--radius-sm);
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
    }

    .ad-container ins {
        min-width: 250px;
        max-width: 100%;
    }

    /* Focus Indicators */
    .nav-arrow:focus-visible,
    .modal-content .close:focus-visible {
        outline: 3px solid rgba(255, 255, 255, 0.8);
        outline-offset: 2px;
    }

    /* All Interactive Elements */
    button,
    .btn,
    a,
    input[type="submit"],
    input[type="button"] {
        min-height: 44px;
        min-width: 44px;
        padding: 10px 15px;
        margin: 5px;
    }
}

/* ###############################################################################
   Desktop Touch Indicators
   #############################################################################*/
@media (min-width: 769px) {
 }

/* ###############################################################################
   Large Screen Adjustments
   #############################################################################*/
@media (max-width: 1024px) {
    .container {
        margin: var(--spacing-md);
        border-radius: var(--radius-lg);
    }
}

/* ###############################################################################
   Touch Indicator Animations
   #############################################################################*/
.touch-indicator.swipe-hint {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: pulseGlow 2s infinite;
}

.touch-indicator.swipe-hint::before {
    content: "👆";
    font-size: var(--font-size-lg);
    animation: swipeAnimation 1.5s ease-in-out infinite;
}

.touch-indicator.hide,
.keyboard-hint.hide {
    opacity: 0;
    transform: translateX(-50%) translateY(-10px);
    pointer-events: none;
}

/* ###############################################################################
   Swipe Navigation UI
   #############################################################################*/
.swipe-indicators {
    position: absolute;
    bottom: calc(var(--spacing-xl) * 2);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 10;
}

.swipe-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transition: var(--transition-fast);
}

.swipe-dot.active {
    background: white;
    transform: scale(1.3);
}

/* ###############################################################################
   Gesture Hints
   #############################################################################*/
.gesture-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 5;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.gesture-hint.show {
    opacity: 0.7;
    animation: gestureDemo 2s ease-in-out;
}

.gesture-arrow {
    font-size: var(--font-size-3xl);
    color: white;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.8);
}

/* ###############################################################################
   Accessibility & User Preferences
   #############################################################################*/
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms;
        animation-iteration-count: 1;
        transition-duration: 0.01ms;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --background-primary: #0f172a;
        --background-secondary: #1e293b;
        --surface-primary: #334155;
        --surface-secondary: #475569;
        --text-primary: #f8fafc;
        --text-secondary: #cbd5e1;
        --text-muted: #94a3b8;
        --border-color: #475569;
    }
}