/**
 * EngiSuite Mobile Responsive Styles
 * Comprehensive mobile-first design with touch support
 */

/* ============================================
   Mobile Breakpoints
   - xs: 0-479px (phones portrait)
   - sm: 480-639px (phones landscape)
   - md: 640-767px (tablets portrait)
   - lg: 768-1023px (tablets landscape)
   - xl: 1024px+ (desktops)
   ============================================ */

/* ============================================
   Mobile Layout Variables
   ============================================ */

:root {
    --mobile-header-height: 56px;
    --mobile-bottom-nav-height: 64px;
    --mobile-drawer-width: 280px;
    --mobile-safe-area-top: env(safe-area-inset-top, 0px);
    --mobile-safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --touch-target-size: 44px;
    --fab-size: 56px;
    --fab-margin: 16px;
}

/* ============================================
   Base Mobile Styles
   ============================================ */

/* Touch-friendly base */
@media (max-width: 767px) {
    html {
        -webkit-tap-highlight-color: transparent;
        -webkit-touch-callout: none;
    }

    body {
        padding-top: var(--mobile-safe-area-top);
        padding-bottom: var(--mobile-safe-area-bottom);
        overscroll-behavior-y: contain;
    }

    /* Prevent horizontal scroll */
    .app-container,
    .main-content,
    .page-content {
        overflow-x: hidden;
        max-width: 100vw;
    }

    /* Adjust main content for bottom nav */
    .main-content {
        padding-bottom: calc(var(--mobile-bottom-nav-height) + var(--mobile-safe-area-bottom));
    }

    /* Hide desktop sidebar on mobile */
    #sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: var(--mobile-drawer-width);
        height: 100vh;
        height: 100dvh;
        z-index: var(--z-modal);
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-2xl);
    }

    #sidebar.mobile-drawer-open {
        transform: translateX(0);
    }

    /* Sidebar overlay */
    #sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        z-index: calc(var(--z-modal) - 1);
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    #sidebar-overlay:not(.hidden) {
        opacity: 1;
    }

    /* Adjust header for mobile */
    header {
        height: var(--mobile-header-height);
        padding: 0 var(--spacing-sm);
    }

    /* Page content adjustments */
    .page-content {
        padding: var(--spacing-sm);
    }

    /* Common app shell used by authenticated pages */
    body.h-screen.flex.overflow-hidden {
        height: auto !important;
        min-height: 100vh;
        min-height: 100dvh;
        overflow-x: hidden !important;
        overflow-y: auto !important;
    }

    body.h-screen.flex.overflow-hidden main {
        min-height: 100vh;
        min-height: 100dvh;
    }

    body.h-screen.flex.overflow-hidden main>.flex-1.overflow-hidden {
        overflow-y: auto;
    }

    body.h-screen.flex.overflow-hidden main>.flex-1.overflow-y-auto,
    body.h-screen.flex.overflow-hidden main>.flex-1.overflow-hidden {
        padding-bottom: calc(var(--mobile-bottom-nav-height) + var(--mobile-safe-area-bottom) + var(--spacing-md));
    }

    /* Keep media and embedded content contained */
    img,
    svg,
    video,
    canvas,
    iframe {
        max-width: 100%;
        height: auto;
    }

    pre,
    code {
        overflow-wrap: anywhere;
    }
}

/* ============================================
   Touch Target Sizing
   ============================================ */

@media (max-width: 767px) {

    /* Minimum touch target size */
    button,
    a,
    input[type="checkbox"],
    input[type="radio"],
    select,
    .nav-item,
    .menu-item,
    .list-item-action,
    .clickable {
        min-height: var(--touch-target-size);
        min-width: var(--touch-target-size);
    }

    /* Form inputs */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="tel"],
    input[type="url"],
    textarea,
    select {
        height: var(--touch-target-size);
        font-size: 16px;
        /* Prevents iOS zoom on focus */
        padding: 12px 16px;
    }

    /* Buttons */
    .btn {
        min-height: var(--touch-target-size);
        padding: 12px 20px;
        font-size: 16px;
    }

    .btn-sm {
        min-height: 36px;
        padding: 8px 16px;
    }

    .btn-lg {
        min-height: 52px;
        padding: 14px 28px;
        font-size: 18px;
    }

    /* Icon buttons */
    .btn-icon {
        width: var(--touch-target-size);
        height: var(--touch-target-size);
        padding: 0;
        border-radius: 50%;
    }
}

/* ============================================
   Touch Feedback
   ============================================ */

/* Active/pressed state for touch */
.touch-active,
.btn:active,
.nav-item:active,
.card-clickable:active,
a:active {
    transform: scale(0.98);
    opacity: 0.9;
}

/* Button press inverse color effect for mobile */
@media (hover: none) and (pointer: coarse) {

    /* Primary buttons - invert colors */
    .btn-primary:active,
    button.bg-blue-500:active,
    button.bg-blue-600:active,
    button.bg-indigo-500:active,
    button.bg-indigo-600:active {
        background: white !important;
        color: var(--primary) !important;
        border-color: var(--primary) !important;
    }

    /* Success buttons */
    .btn-success:active,
    button.bg-green-500:active,
    button.bg-green-600:active,
    button.bg-emerald-500:active,
    button.bg-emerald-600:active {
        background: white !important;
        color: var(--success) !important;
        border-color: var(--success) !important;
    }

    /* Danger buttons */
    .btn-danger:active,
    button.bg-red-500:active,
    button.bg-red-600:active,
    button.bg-rose-500:active,
    button.bg-rose-600:active {
        background: white !important;
        color: var(--danger) !important;
        border-color: var(--danger) !important;
    }

    /* Warning buttons */
    .btn-warning:active,
    button.bg-yellow-500:active,
    button.bg-yellow-600:active,
    button.bg-amber-500:active,
    button.bg-amber-600:active {
        background: white !important;
        color: var(--warning) !important;
        border-color: var(--warning) !important;
    }

    /* Secondary/Outline buttons - fill with color */
    .btn-secondary:active,
    .btn-outline:active,
    button.border-blue-500:active,
    button.border-primary:active {
        background: var(--primary) !important;
        color: white !important;
        border-color: var(--primary) !important;
    }

    /* Ghost buttons */
    .btn-ghost:active {
        background: var(--text-primary) !important;
        color: var(--bg-surface) !important;
    }

    /* White/Light buttons - invert to dark */
    button.bg-white:active,
    button.bg-slate-50:active,
    button.bg-gray-50:active {
        background: var(--text-primary) !important;
        color: white !important;
        border-color: var(--text-primary) !important;
    }

    /* Dark buttons - invert to light */
    button.bg-slate-900:active,
    button.bg-gray-900:active,
    button.bg-black:active {
        background: white !important;
        color: var(--text-primary) !important;
    }

    /* Gradient buttons */
    button[class*="bg-gradient"]:active {
        filter: brightness(1.2) saturate(0.8);
    }

    /* Generic button active state */
    button:active:not(:disabled) {
        transform: scale(0.95);
    }
}

/* Ripple effect container */
.ripple-container {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Touch highlight for cards */
@media (hover: none) and (pointer: coarse) {

    .card:hover,
    .card-clickable:hover {
        box-shadow: var(--shadow-sm);
        transform: none;
    }

    .card:active,
    .card-clickable:active {
        background: var(--bg-surface-hover);
        transform: scale(0.99);
    }
}

/* ============================================
   Mobile Navigation Drawer
   ============================================ */

@media (max-width: 767px) {
    .drawer-open {
        overflow: hidden;
    }

    /* Drawer header */
    #sidebar .drawer-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--border-default);
    }

    /* Drawer navigation items */
    #sidebar nav a {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 14px 16px;
        margin: 2px 8px;
        border-radius: var(--radius-lg);
        font-size: 16px;
        font-weight: 500;
        color: var(--text-primary);
        transition: all 0.2s ease;
    }

    #sidebar nav a:hover,
    #sidebar nav a.active {
        background: var(--primary-light);
        color: var(--primary);
    }

    #sidebar nav a i {
        width: 24px;
        text-align: center;
        font-size: 18px;
    }

    /* Drawer sections */
    #sidebar .nav-section {
        padding: var(--spacing-sm) 0;
        border-top: 1px solid var(--border-default);
        margin-top: var(--spacing-sm);
    }

    #sidebar .nav-section-title {
        padding: 8px 16px;
        font-size: 12px;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        color: var(--text-muted);
    }
}

/* ============================================
   Bottom Navigation Bar
   ============================================ */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--mobile-bottom-nav-height) + var(--mobile-safe-area-bottom));
    padding-bottom: var(--mobile-safe-area-bottom);
    background: var(--bg-surface);
    border-top: 1px solid var(--border-default);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: var(--z-fixed);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    height: 100%;
    padding: 8px 4px;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.2s ease;
    position: relative;
}

.bottom-nav-item:active {
    transform: scale(0.95);
}

.bottom-nav-item.active {
    color: var(--primary);
}

.bottom-nav-icon {
    position: relative;
    font-size: 20px;
    margin-bottom: 4px;
}

.bottom-nav-label {
    font-size: 11px;
    font-weight: 500;
}

.bottom-nav-badge {
    position: absolute;
    top: -4px;
    right: -8px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    font-size: 10px;
    font-weight: 600;
    background: var(--danger);
    color: white;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   Floating Action Button (FAB)
   ============================================ */

.fab-container {
    position: fixed;
    z-index: var(--z-fixed);
}

.fab-wrapper {
    position: fixed;
    z-index: var(--z-fixed);
}

.fab-bottom-right {
    bottom: calc(var(--mobile-bottom-nav-height) + var(--mobile-safe-area-bottom) + var(--fab-margin));
    right: var(--fab-margin);
}

.fab-bottom-left {
    bottom: calc(var(--mobile-bottom-nav-height) + var(--mobile-safe-area-bottom) + var(--fab-margin));
    left: var(--fab-margin);
}

.fab-top-right {
    top: calc(var(--mobile-header-height) + var(--fab-margin));
    right: var(--fab-margin);
}

.fab-top-left {
    top: calc(var(--mobile-header-height) + var(--fab-margin));
    left: var(--fab-margin);
}

/* Desktop FAB positioning */
@media (min-width: 768px) {

    .fab-bottom-right,
    .fab-bottom-left {
        bottom: calc(var(--fab-margin) * 2);
    }

    .fab-top-right,
    .fab-top-left {
        top: calc(var(--mobile-header-height) + var(--fab-margin) * 2);
    }
}

.fab-menu {
    display: flex;
    flex-direction: column-reverse;
    align-items: center;
    gap: 12px;
}

.fab-main {
    width: var(--fab-size);
    height: var(--fab-size);
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.fab-main:hover {
    background: var(--primary-hover);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
    transform: scale(1.05);
}

.fab-main:active {
    transform: scale(0.95);
}

.fab-main i {
    transition: transform 0.3s ease;
}

.fab-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.8);
    transition: all 0.2s ease;
}

.fab-open .fab-item {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.fab-item-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-surface);
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all 0.2s ease;
}

.fab-item:hover .fab-item-icon {
    background: var(--primary);
    color: white;
}

.fab-item-label {
    padding: 8px 12px;
    background: var(--bg-surface);
    color: var(--text-primary);
    border-radius: var(--radius-lg);
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* FAB Speed Dial Animation */
.fab-open .fab-main {
    background: var(--danger);
}

.fab-open .fab-main i {
    transform: rotate(45deg);
}

/* ============================================
   Mobile Cards
   ============================================ */

@media (max-width: 767px) {
    .card {
        margin-bottom: var(--spacing-md);
        border-radius: var(--radius-xl);
    }

    .card-header {
        padding: var(--spacing-md);
    }

    .card-body {
        padding: var(--spacing-md);
    }

    .card-footer {
        padding: var(--spacing-md);
    }

    /* Card grid adjustments */
    .card-grid {
        display: grid;
        gap: var(--spacing-md);
        grid-template-columns: 1fr;
    }

    /* Stat cards */
    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-card .stat-value {
        font-size: 24px;
    }

    .stat-card .stat-label {
        font-size: 12px;
    }
}

/* ============================================
   Mobile Forms
   ============================================ */

@media (max-width: 767px) {
    .form-group {
        margin-bottom: var(--spacing-md);
    }

    .form-label {
        display: block;
        margin-bottom: 6px;
        font-weight: 500;
        font-size: 14px;
    }

    .form-input,
    .form-select,
    .form-textarea {
        width: 100%;
        height: var(--touch-target-size);
        padding: 12px 16px;
        font-size: 16px;
        border: 1px solid var(--border-default);
        border-radius: var(--radius-lg);
        background: var(--bg-surface);
        color: var(--text-primary);
        transition: all 0.2s ease;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px var(--primary-light);
    }

    .form-textarea {
        min-height: 120px;
        resize: vertical;
    }

    /* Form row to stack on mobile */
    .form-row {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-md);
    }

    /* Checkbox and radio sizing */
    .form-check-input {
        width: 24px;
        height: 24px;
        margin-right: 12px;
    }

    .form-check-label {
        font-size: 16px;
    }
}

/* ============================================
   Mobile Tables
   ============================================ */

@media (max-width: 767px) {

    /* Responsive table wrapper */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 calc(-1 * var(--spacing-sm));
        padding: 0 var(--spacing-sm);
    }

    /* Card-based table for mobile */
    .mobile-table {
        display: block;
    }

    .mobile-table thead {
        display: none;
    }

    .mobile-table tbody {
        display: block;
    }

    .mobile-table tr {
        display: block;
        margin-bottom: var(--spacing-md);
        background: var(--bg-surface);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
        padding: var(--spacing-md);
    }

    .mobile-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 0;
        border-bottom: 1px solid var(--border-muted);
    }

    .mobile-table td:last-child {
        border-bottom: none;
    }

    .mobile-table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-secondary);
        margin-right: var(--spacing-md);
    }
}

/* ============================================
   Mobile Modals
   ============================================ */

@media (max-width: 767px) {
    .modal {
        position: fixed;
        inset: 0;
        z-index: var(--z-modal);
        display: flex;
        align-items: flex-end;
        justify-content: center;
        padding: 0;
    }

    .modal-content {
        width: 100%;
        max-height: 90vh;
        max-height: 90dvh;
        border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
        background: var(--bg-surface);
        transform: translateY(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        overflow: hidden;
    }

    .modal.open .modal-content {
        transform: translateY(0);
    }

    .modal-header {
        position: relative;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--border-default);
    }

    /* Drag handle for modal */
    .modal-header::before {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 4px;
        background: var(--border-strong);
        border-radius: 2px;
    }

    .modal-body {
        padding: var(--spacing-md);
        max-height: 60vh;
        max-height: 60dvh;
        overflow-y: auto;
    }

    .modal-footer {
        padding: var(--spacing-md);
        border-top: 1px solid var(--border-default);
        display: flex;
        gap: var(--spacing-sm);
        justify-content: flex-end;
    }

    .modal-backdrop {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: calc(var(--z-modal) - 1);
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .modal.open .modal-backdrop {
        opacity: 1;
    }
}

/* ============================================
   Mobile Tabs
   ============================================ */

@media (max-width: 767px) {
    .tabs {
        display: flex;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        border-bottom: 1px solid var(--border-default);
        background: var(--bg-surface);
        position: sticky;
        top: var(--mobile-header-height);
        z-index: var(--z-sticky);
    }

    .tabs::-webkit-scrollbar {
        display: none;
    }

    .tab-item {
        flex: 0 0 auto;
        padding: 12px 20px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-secondary);
        border-bottom: 2px solid transparent;
        white-space: nowrap;
        transition: all 0.2s ease;
    }

    .tab-item.active {
        color: var(--primary);
        border-bottom-color: var(--primary);
    }

    .tab-item:active {
        background: var(--bg-surface-hover);
    }
}

/* ============================================
   Pull to Refresh
   ============================================ */

.pull-to-refresh-indicator {
    position: absolute;
    top: -60px;
    left: 0;
    right: 0;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: transform 0.2s ease;
    background: var(--bg-surface);
}

.ptr-spinner {
    display: none;
}

.pull-to-refresh-indicator.refreshing .ptr-spinner {
    display: block;
}

.pull-to-refresh-indicator.refreshing .ptr-arrow {
    display: none;
}

/* ============================================
   Mobile Search
   ============================================ */

@media (max-width: 767px) {
    .search-container {
        position: relative;
    }

    .search-input {
        width: 100%;
        height: var(--touch-target-size);
        padding: 12px 16px 12px 44px;
        font-size: 16px;
        border: 1px solid var(--border-default);
        border-radius: var(--radius-full);
        background: var(--bg-muted);
    }

    .search-icon {
        position: absolute;
        left: 16px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-muted);
    }

    /* Expandable search */
    .search-expandable {
        width: 44px;
        transition: width 0.3s ease;
    }

    .search-expandable.expanded {
        width: 100%;
    }
}

/* ============================================
   Mobile Lists
   ============================================ */

@media (max-width: 767px) {
    .list-item {
        display: flex;
        align-items: center;
        padding: 14px 16px;
        min-height: var(--touch-target-size);
        border-bottom: 1px solid var(--border-muted);
        transition: background 0.2s ease;
    }

    .list-item:active {
        background: var(--bg-surface-hover);
    }

    .list-item-icon {
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 12px;
        color: var(--primary);
    }

    .list-item-content {
        flex: 1;
        min-width: 0;
    }

    .list-item-title {
        font-weight: 500;
        color: var(--text-primary);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .list-item-subtitle {
        font-size: 13px;
        color: var(--text-secondary);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .list-item-action {
        margin-left: 12px;
        color: var(--text-muted);
    }
}

/* ============================================
   Mobile Typography
   ============================================ */

@media (max-width: 767px) {
    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    h3 {
        font-size: 18px;
    }

    h4 {
        font-size: 16px;
    }

    .page-title {
        font-size: 20px;
        font-weight: 700;
        margin-bottom: var(--spacing-md);
    }

    .section-title {
        font-size: 16px;
        font-weight: 600;
        margin-bottom: var(--spacing-sm);
    }
}

/* ============================================
   Mobile Utilities
   ============================================ */

@media (max-width: 767px) {

    /* Hide on mobile */
    .hide-mobile {
        display: none !important;
    }

    /* Show only on mobile */
    .show-mobile {
        display: block !important;
    }

    /* Full width on mobile */
    .mobile-full-width {
        width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    /* Stack on mobile */
    .mobile-stack {
        flex-direction: column !important;
    }

    /* Center on mobile */
    .mobile-center {
        text-align: center !important;
        justify-content: center !important;
        align-items: center !important;
    }

    /* Spacing utilities */
    .mobile-p-0 {
        padding: 0 !important;
    }

    .mobile-p-2 {
        padding: var(--spacing-xs) !important;
    }

    .mobile-p-4 {
        padding: var(--spacing-sm) !important;
    }

    .mobile-m-0 {
        margin: 0 !important;
    }

    .mobile-m-2 {
        margin: var(--spacing-xs) !important;
    }

    .mobile-m-4 {
        margin: var(--spacing-sm) !important;
    }

    /* Gap utilities */
    .mobile-gap-2 {
        gap: var(--spacing-xs) !important;
    }

    .mobile-gap-4 {
        gap: var(--spacing-sm) !important;
    }

    /* Visual Workflow Builder */
    .workflow-builder-container {
        flex-direction: column !important;
        height: auto !important;
    }

    .equation-palette,
    .equation-details-panel {
        width: 100% !important;
        min-width: 0 !important;
        max-height: 40vh;
    }

    .canvas-area {
        min-height: 58vh;
    }

    .canvas-toolbar {
        gap: 10px;
    }

    .canvas-toolbar .toolbar-group {
        width: 100%;
        flex-wrap: wrap;
    }

    .canvas-toolbar .toolbar-group[style*="margin-left: auto"] {
        margin-left: 0 !important;
        justify-content: flex-start;
    }

    .canvas-toolbar .btn {
        flex: 1 1 calc(50% - 6px);
        justify-content: center;
    }

    .status-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .canvas-controls {
        right: 10px;
        bottom: calc(var(--mobile-bottom-nav-height) + var(--mobile-safe-area-bottom) + 10px);
    }

    /* Reporting page/mobile tabs and cards */
    #content-branding .grid.grid-cols-2 {
        grid-template-columns: 1fr;
    }

    .template-carousel {
        grid-template-columns: 1fr;
    }

    .report-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .report-item-actions {
        margin-left: 0;
        width: 100%;
        flex-wrap: wrap;
    }

    #sig-canvas {
        width: 100%;
    }

    #content-signatures .flex.justify-between.items-center.mb-6,
    #content-recent .flex.items-center.justify-between.mb-6 {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

@media (min-width: 768px) {
    .hide-desktop {
        display: none !important;
    }

    .show-mobile {
        display: none !important;
    }
}

/* ============================================
   Safe Area Support (iPhone X+)
   ============================================ */

@supports (padding: max(0px)) {
    .safe-area-top {
        padding-top: max(var(--spacing-md), var(--mobile-safe-area-top));
    }

    .safe-area-bottom {
        padding-bottom: max(var(--spacing-md), var(--mobile-safe-area-bottom));
    }

    .safe-area-left {
        padding-left: max(var(--spacing-md), env(safe-area-inset-left, 0px));
    }

    .safe-area-right {
        padding-right: max(var(--spacing-md), env(safe-area-inset-right, 0px));
    }
}

/* ============================================
   Landscape Mode Adjustments
   ============================================ */

@media (max-height: 500px) and (orientation: landscape) {
    .bottom-nav {
        height: 48px;
    }

    .bottom-nav-label {
        display: none;
    }

    .fab-bottom-right,
    .fab-bottom-left {
        bottom: calc(48px + var(--fab-margin));
    }
}

/* ============================================
   High Contrast Mode
   ============================================ */

@media (prefers-contrast: high) {

    .btn,
    .nav-item,
    .card {
        border-width: 2px;
    }

    .bottom-nav-item.active {
        border-top: 3px solid var(--primary);
    }
}

/* ============================================
   Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {

    .bottom-nav,
    .fab-wrapper,
    #sidebar,
    #sidebar-overlay,
    header {
        display: none !important;
    }

    .main-content {
        padding: 0 !important;
    }
}