/* ============================================
   MOBILE FIXES & IMPROVEMENTS - iOS 26 Glass
   Mobile-first improvements for StaxCloud
   ============================================ */

/* ============================================
   IMPROVED MOBILE BREAKPOINTS
   ============================================ */

/* Extra Small Devices (phones, ≤ 480px) */
@media (max-width: 480px) {
    :root {
        --spacing-xs: 0.25rem;
        --spacing-sm: 0.5rem;
        --spacing-md: 0.75rem;
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }
    
    /* Typography adjustments */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.125rem; }
    
    /* Navigation - Hamburger menu improvements */
    .navbar-brand {
        font-size: 1.125rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 1rem;
        min-height: 44px; /* Apple's recommended touch target */
        display: flex;
        align-items: center;
    }
    
    /* Cards - single column with glass effect */
    .card-body {
        padding: var(--spacing-lg);
    }
    
    /* Statistics cards - full width on mobile */
    .row.mb-4.g-2 > [class*="col-"] {
        flex: 0 0 100%;
        max-width: 100%;
        margin-bottom: var(--spacing-md);
    }
    
    /* Buttons - larger touch targets */
    .btn {
        min-height: 44px;
        min-width: 44px;
        padding: 0.75rem 1.25rem;
        font-size: var(--font-size-base);
    }
    
    .btn-sm {
        min-height: 38px;
        padding: 0.625rem 1rem;
    }
    
    /* Forms - larger inputs with glass effect */
    .form-control,
    .form-select {
        min-height: 44px;
        font-size: 16px; /* Prevents zoom on iOS */
        padding: 0.75rem 1rem;
    }
    
    /* Tables - hidden, use mobile cards */
    .table-responsive .table {
        display: none;
    }
    
    /* Upload area */
    .upload-area,
    .folder-drop-area {
        padding: var(--spacing-xl);
        min-height: 200px;
    }
    
    /* Progress bars - larger on mobile */
    .progress {
        height: 0.75rem;
    }
}

/* Small Devices (landscape phones, 481px - 767px) */
@media (min-width: 481px) and (max-width: 767px) {
    /* Statistics cards - 2 columns */
    .row.mb-4.g-2 > [class*="col-"] {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

/* Medium Devices (tablets, 768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    /* Statistics cards - 2 columns on tablets */
    .row.mb-4.g-2 > [class*="col-md-3"] {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

/* ============================================
   TOUCH DEVICE OPTIMIZATIONS - Glass Style
   ============================================ */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .btn,
    .nav-link,
    .dropdown-item,
    .form-check-input {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Remove hover effects, add active states with glass feedback */
    .btn:hover {
        transform: none;
    }
    
    .btn:active {
        opacity: 0.8;
        transform: scale(0.98);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
    }
    
    .card:hover {
        transform: none;
        box-shadow: var(--shadow-sm);
    }
    
    .card:active {
        transform: scale(0.99);
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
    }
    
    /* Better tap feedback with glass effect */
    .nav-link:active,
    .dropdown-item:active {
        backdrop-filter: blur(15px) saturate(150%);
        -webkit-backdrop-filter: blur(15px) saturate(150%);
        background-color: rgba(255, 255, 255, 0.3);
    }
    
    /* Disable hover on tables */
    .table tbody tr:hover {
        background-color: transparent;
    }
}

/* ============================================
   MOBILE NAVIGATION IMPROVEMENTS - Glass Style
   ============================================ */
.navbar-toggler {
    border: none;
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
    outline: none;
}

.navbar-collapse {
    margin-top: var(--spacing-md);
}

@media (max-width: 991px) {
    .navbar-collapse {
        backdrop-filter: blur(20px) saturate(150%);
        -webkit-backdrop-filter: blur(20px) saturate(150%);
        background: rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-lg);
        padding: var(--spacing-sm);
        margin-top: var(--spacing-md);
        border: 1px solid rgba(255, 255, 255, 0.2);
    }
    
    .navbar-nav {
        gap: var(--spacing-xs);
    }
}

/* ============================================
   MOBILE TABLE IMPROVEMENTS - Glass Style
   ============================================ */
.file-item-card {
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    background: var(--glass-bg-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.file-item-card:active {
    transform: scale(0.98);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
}

.file-item-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.file-item-name {
    font-weight: var(--font-weight-semibold);
    flex: 1;
    min-width: 0;
    word-break: break-word;
}

.file-item-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.file-item-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.file-item-actions .btn {
    flex: 1;
    min-width: 100px;
}

/* ============================================
   MOBILE FORM IMPROVEMENTS - Glass Style
   ============================================ */
@media (max-width: 767px) {
    .form-label {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-sm);
    }
    
    .form-check {
        margin-bottom: var(--spacing-md);
    }
    
    .form-check-input {
        width: 1.25rem;
        height: 1.25rem;
        margin-top: 0.125rem;
    }
    
    .form-check-label {
        margin-left: var(--spacing-md);
        font-size: var(--font-size-base);
    }
    
    /* Better spacing in forms */
    .mb-3 {
        margin-bottom: var(--spacing-lg) !important;
    }
}

/* ============================================
   MOBILE DASHBOARD IMPROVEMENTS
   ============================================ */
@media (max-width: 767px) {
    /* Statistics cards spacing */
    .row.mb-4.g-2 {
        margin-left: -0.5rem;
        margin-right: -0.5rem;
    }
    
    .row.mb-4.g-2 > [class*="col-"] {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    /* Page headers */
    .page-header-title {
        font-size: 1.5rem;
        flex-wrap: wrap;
    }
    
    /* Card headers */
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .card-header .btn-group {
        width: 100%;
        justify-content: flex-start;
    }
}

/* ============================================
   MOBILE UPLOAD AREA IMPROVEMENTS - Glass Style
   ============================================ */
@media (max-width: 767px) {
    .upload-area,
    .folder-drop-area {
        border-width: 2px;
    }
    
    .upload-area.dragover,
    .folder-drop-area.dragover {
        border-width: 3px;
        backdrop-filter: blur(25px) saturate(180%);
        -webkit-backdrop-filter: blur(25px) saturate(180%);
    }
}

/* ============================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================ */
@media (max-width: 767px) {
    /* Ensure sufficient contrast */
    .text-muted {
        color: var(--text-secondary) !important;
    }
    
    /* Larger focus indicators with iOS blue */
    .btn:focus,
    .form-control:focus,
    .form-select:focus,
    .nav-link:focus {
        outline: 3px solid var(--ios-blue);
        outline-offset: 2px;
    }
    
    /* Better spacing for readability */
    p {
        line-height: 1.6;
    }
}

/* ============================================
   LANDSCAPE ORIENTATION ADJUSTMENTS
   ============================================ */
@media (max-width: 767px) and (orientation: landscape) {
    .navbar {
        padding: 0.5rem 0;
    }
    
    .hero-section {
        padding: var(--spacing-lg);
    }
    
    .card-body {
        padding: var(--spacing-md);
    }
}

/* ============================================
   PERFORMANCE OPTIMIZATIONS - Glass Effects
   ============================================ */
@media (max-width: 767px) {
    /* Reduce blur intensity on mobile for better performance */
    .card {
        backdrop-filter: blur(20px) saturate(150%);
        -webkit-backdrop-filter: blur(20px) saturate(150%);
    }
    
    .navbar {
        backdrop-filter: blur(20px) saturate(150%);
        -webkit-backdrop-filter: blur(20px) saturate(150%);
    }
    
    /* Reduce animations on mobile for better performance */
    .card,
    .btn,
    .folder-card {
        transition-duration: 0.15s;
    }
    
    /* Optimize shadows */
    .card {
        box-shadow: var(--shadow-sm);
    }
    
    .card:hover {
        box-shadow: var(--shadow-md);
    }
    
    /* Fallback for devices that don't support backdrop-filter well */
    @supports not (backdrop-filter: blur(10px)) {
        .card,
        .navbar,
        .glass,
        .glass-strong,
        .glass-soft {
            background: rgba(255, 255, 255, 0.95);
        }
    }
}

/* ============================================
   iOS SAFE AREA SUPPORT
   ============================================ */
@supports (padding: max(0px)) {
    .navbar {
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
    }
    
    .container {
        padding-left: max(1rem, env(safe-area-inset-left));
        padding-right: max(1rem, env(safe-area-inset-right));
    }
    
    footer {
        padding-bottom: max(var(--spacing-xl), env(safe-area-inset-bottom));
    }
}

/* ============================================
   BOTTOM NAVIGATION FOR MOBILE (Optional)
   ============================================ */
@media (max-width: 767px) {
    /* Enhanced mobile navigation with glass effect */
    .navbar-collapse {
        backdrop-filter: blur(30px) saturate(180%);
        -webkit-backdrop-filter: blur(30px) saturate(180%);
    }
    
    /* Better glass effect for mobile dropdowns */
    .dropdown-menu {
        backdrop-filter: blur(25px) saturate(170%);
        -webkit-backdrop-filter: blur(25px) saturate(170%);
    }
}