/*
 * Material 3 Modern UI/UX Master Stylesheet - Professional Overhaul
 * Inspired by Flutter Material 3 and High-Quality Design Systems.
 */

:root, [data-theme="DEEP_NAVY"] {
    --primary: #1A237E;
    --on-primary: #FFFFFF;
    --primary-container: #E8EAF6;
    --on-primary-container: #1A237E;
    --secondary: #3F51B5;
    --on-secondary: #FFFFFF;
    --surface: #F8FAFC;
    --on-surface: #1E293B;
    --surface-variant: #F1F5F9;
    --on-surface-variant: #475569;
    --outline: #CBD5E1;
    --outline-variant: #E2E8F0;
    --error: #EF4444;
    --on-error: #FFFFFF;
    --success: #10B981;
    --warning: #F59E0B;
    --font-cairo: 'Cairo', sans-serif;
    --card-background: #FFFFFF;
    --header-background: rgba(255, 255, 255, 0.85);

    /* M3 Elevations */
    --elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.08), 0px 1px 2px 0px rgba(0, 0, 0, 0.05);
    --elevation-2: 0px 4px 12px 2px rgba(0, 0, 0, 0.1), 0px 2px 4px 0px rgba(0, 0, 0, 0.06);
    --elevation-3: 0px 12px 24px 4px rgba(0, 0, 0, 0.12), 0px 4px 8px 0px rgba(0, 0, 0, 0.08);

    /* M3 Transitions */
    --transition-standard: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="INDUSTRIAL_BLUE"] {
    --primary: #0284C7;
    --on-primary: #FFFFFF;
    --primary-container: #E0F2FE;
    --on-primary-container: #0369A1;
    --secondary: #0EA5E9;
    --on-secondary: #FFFFFF;
    --surface: #F0F9FF;
    --on-surface: #0C4A6E;
    --surface-variant: #E0F2FE;
    --on-surface-variant: #334155;
    --outline: #BAE6FD;
    --outline-variant: #E2E8F0;
    --card-background: #FFFFFF;
    --header-background: rgba(240, 249, 255, 0.85);
}

[data-theme="EMERALD_FOREST"] {
    --primary: #059669;
    --on-primary: #FFFFFF;
    --primary-container: #D1FAE5;
    --on-primary-container: #065F46;
    --secondary: #10B981;
    --on-secondary: #FFFFFF;
    --surface: #F0FDF4;
    --on-surface: #064E3B;
    --surface-variant: #E6F4EA;
    --on-surface-variant: #334155;
    --outline: #A7F3D0;
    --outline-variant: #E2E8F0;
    --card-background: #FFFFFF;
    --header-background: rgba(240, 253, 244, 0.85);
}

[data-theme="SUNSET_GOLD"] {
    --primary: #D97706;
    --on-primary: #FFFFFF;
    --primary-container: #FEF3C7;
    --on-primary-container: #78350F;
    --secondary: #F59E0B;
    --on-secondary: #FFFFFF;
    --surface: #FFFBEB;
    --on-surface: #451A03;
    --surface-variant: #FEF3C7;
    --on-surface-variant: #475569;
    --outline: #FDE68A;
    --outline-variant: #E2E8F0;
    --card-background: #FFFFFF;
    --header-background: rgba(255, 251, 235, 0.85);
}

[data-theme="BUSINESS_GRAY"] {
    --primary: #334155;
    --on-primary: #FFFFFF;
    --primary-container: #E2E8F0;
    --on-primary-container: #0F172A;
    --secondary: #2563EB;
    --on-secondary: #FFFFFF;
    --surface: #F8FAFC;
    --on-surface: #0F172A;
    --surface-variant: #F1F5F9;
    --on-surface-variant: #475569;
    --outline: #94A3B8;
    --outline-variant: #CBD5E1;
    --card-background: #FFFFFF;
    --header-background: rgba(248, 250, 252, 0.85);
}

[data-theme="ROYAL_PURPLE"] {
    --primary: #6D28D9;
    --on-primary: #FFFFFF;
    --primary-container: #EDE9FE;
    --on-primary-container: #4C1D95;
    --secondary: #8B5CF6;
    --on-secondary: #FFFFFF;
    --surface: #FAF5FF;
    --on-surface: #2E1065;
    --surface-variant: #F3E8FF;
    --on-surface-variant: #5B21B6;
    --outline: #DDD6FE;
    --outline-variant: #E9D5FF;
    --card-background: #FFFFFF;
    --header-background: rgba(250, 245, 255, 0.85);
}

[data-theme="CRIMSON_RED"] {
    --primary: #B91C1C;
    --on-primary: #FFFFFF;
    --primary-container: #FEE2E2;
    --on-primary-container: #7F1D1D;
    --secondary: #DC2626;
    --on-secondary: #FFFFFF;
    --surface: #FFF5F5;
    --on-surface: #450A0A;
    --surface-variant: #FFE4E6;
    --on-surface-variant: #991B1B;
    --outline: #FCA5A5;
    --outline-variant: #FECDD3;
    --card-background: #FFFFFF;
    --header-background: rgba(255, 245, 245, 0.85);
}

[data-theme="MIDNIGHT_LUXURY"] {
    --primary: #2DD4BF;
    --on-primary: #004D40;
    --primary-container: #0D9488;
    --on-primary-container: #CCFBF1;
    --secondary: #14B8A6;
    --on-secondary: #0F172A;
    --surface: #0F172A;
    --on-surface: #F8FAFC;
    --surface-variant: #1E293B;
    --on-surface-variant: #94A3B8;
    --outline: #334155;
    --outline-variant: #475569;
    --card-background: #1E293B;
    --header-background: rgba(30, 41, 59, 0.85);
}

/* Base resets & Defaults */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-cairo);
    -webkit-tap-highlight-color: transparent;
}

html, body {
    height: 100%;
    width: 100%;
    overflow-x: hidden;
    background-color: var(--surface);
    color: var(--on-surface);
}

body {
    direction: rtl;
    display: flex;
    flex-direction: column;
    touch-action: manipulation;
    line-height: 1.6;
}

/* Modern Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--outline);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--on-surface-variant);
}

/* Mentions Suggestions */
.mention-suggestions {
    position: absolute;
    bottom: 100%;
    left: 0;
    width: 100%;
    max-height: 200px;
    overflow-y: auto;
    background: white;
    border: 1px solid var(--outline);
    border-radius: 12px;
    box-shadow: var(--elevation-3);
    z-index: 1000;
}

.mention-item {
    padding: 10px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--outline-variant);
    font-size: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mention-item:hover {
    background: var(--primary-container);
}

.mention-item strong { color: var(--primary); }
.mention-item small { color: var(--on-surface-variant); }

.summary-tiles-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.performance-tile {
    background: var(--surface-variant);
    padding: 24px 16px;
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    cursor: pointer;
    transition: var(--transition-standard);
    border: 1px solid var(--outline-variant);
    text-align: center;
    min-height: 160px;
    position: relative;
    overflow: hidden;
}

.performance-tile:hover {
    background: var(--primary-container);
    transform: translateY(-6px);
    box-shadow: var(--elevation-2);
    border-color: var(--primary);
}

.tile-icon-box {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    transition: var(--transition-standard);
}

.performance-tile:hover .tile-icon-box {
    transform: scale(1.1) rotate(5deg);
}

.tile-value {
    font-size: 32px;
    font-weight: 900;
    color: var(--on-surface);
    line-height: 1;
}

.tile-label {
    font-size: 14px;
    font-weight: 800;
    color: var(--on-surface-variant);
}

/* Dashboard Layout */
.dashboard-container {
    display: flex;
    height: 100vh;
    width: 100%;
    overflow: hidden;
    position: relative;
    background-color: var(--surface);
}

/* Sidebar Drawer - M3 Navigation Rail/Drawer Hybrid */
.sidebar {
    width: 280px;
    background-color: var(--primary);
    color: var(--on-primary);
    display: flex;
    flex-direction: column;
    padding: 24px 12px;
    flex-shrink: 0;
    transition: var(--transition-standard);
    z-index: 1000;
    box-shadow: var(--elevation-3);
    border-left: 1px solid var(--outline-variant);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 24px;
    font-weight: 900;
    margin-bottom: 40px;
    padding: 0 16px;
    color: var(--on-primary);
}

.sidebar-brand i {
    font-size: 32px;
    background: var(--primary-container);
    color: var(--on-primary-container);
    padding: 10px;
    border-radius: 16px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    color: var(--on-primary);
    opacity: 0.8;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    border-radius: 20px;
    transition: var(--transition-fast);
}

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

.nav-item:hover {
    background-color: var(--primary-container);
    color: var(--on-primary-container);
    opacity: 1;
    transform: translateX(-4px);
}

.nav-item.active {
    background-color: var(--primary-container);
    color: var(--on-primary-container);
    font-weight: 800;
    box-shadow: var(--elevation-2);
    opacity: 1;
}

.nav-item.active i {
    color: var(--on-primary-container);
}

/* Main Content Area */
.main-content {
    flex: 1;
    height: 100vh;
    overflow-y: auto;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    background-color: var(--surface);
    scroll-behavior: smooth;
}

/* Top Header Bar - Refined Glassmorphism */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 28px;
    background: var(--header-background);
    backdrop-filter: blur(12px);
    border-radius: 28px;
    box-shadow: var(--elevation-1);
    border: 1px solid var(--outline-variant);
    position: sticky;
    top: 0;
    z-index: 900;
    width: 100%;
}

.header-title-container {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-title h1 {
    font-size: 24px;
    font-weight: 900;
    color: var(--primary);
    margin: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Material 3 Buttons */
.btn-primary, .btn-m3-primary {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: 16px;
    padding: 12px 24px;
    font-weight: 800;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition-standard);
    box-shadow: var(--elevation-1);
}

.btn-primary:hover, .btn-m3-primary:hover {
    background: var(--secondary);
    box-shadow: var(--elevation-2);
    transform: translateY(-2px);
}

.btn-primary:active, .btn-m3-primary:active {
    transform: translateY(0);
}

.btn-secondary, .btn-m3-tonal {
    background: var(--primary-container);
    color: var(--on-primary-container);
    border: none;
    border-radius: 16px;
    padding: 12px 24px;
    font-weight: 800;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition-standard);
}

.btn-secondary:hover, .btn-m3-tonal:hover {
    background: var(--outline);
    transform: translateY(-2px);
}

.btn-m3-outline, .btn-outline {
    background: transparent;
    border: 2px solid var(--outline);
    color: var(--primary);
    border-radius: 16px;
    padding: 10px 24px;
    font-weight: 800;
    transition: var(--transition-standard);
}

.btn-m3-outline:hover, .btn-outline:hover {
    background: var(--primary-container);
    border-color: var(--primary);
}

.btn-m3-danger {
    background: var(--error);
    color: var(--on-error);
    border: none;
    border-radius: 16px;
    padding: 12px 24px;
    font-weight: 800;
    transition: var(--transition-standard);
}

.btn-m3-danger:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: var(--elevation-2);
}

.btn-icon-m3 {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-variant);
    color: var(--on-surface-variant);
    border: none;
    cursor: pointer;
    transition: var(--transition-standard);
}

.btn-icon-m3:hover {
    background: var(--primary);
    color: var(--on-primary);
    transform: scale(1.05) rotate(5deg);
}

/* Theme Selector */
.theme-box-m3 {
    background: var(--surface-variant);
    height: 48px;
    border-radius: 16px;
    border: 1.5px solid var(--outline);
    display: inline-flex;
    align-items: center;
    padding: 0 16px;
    gap: 8px;
    transition: var(--transition-standard);
}

.theme-box-m3 select {
    border: none;
    background: transparent;
    font-weight: 800;
    font-size: 14px;
    color: var(--on-surface);
    outline: none;
    cursor: pointer;
}

/* Search Bar - Modern Rounded */
.search-wrapper {
    position: relative;
    width: 100%;
    max-width: 450px;
}

.search-wrapper i {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
    font-size: 18px;
}

.search-wrapper input {
    width: 100%;
    padding: 14px 52px 14px 20px;
    border-radius: 20px;
    border: 1.5px solid var(--outline);
    background: var(--surface-variant);
    font-size: 15px;
    font-weight: 600;
    outline: none;
    transition: var(--transition-standard);
}

.search-wrapper input:focus {
    background: var(--card-background);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-container);
}

/* Dashboard Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

/* Card Styling M3 */
.card {
    background: var(--card-background);
    border-radius: 28px;
    padding: 32px;
    box-shadow: var(--elevation-1);
    border: 1px solid var(--outline-variant);
    transition: var(--transition-standard);
    position: relative;
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--elevation-3);
    transform: translateY(-4px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.card-header h3 {
    font-size: 20px;
    font-weight: 900;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-header h3 i {
    color: var(--secondary);
    font-size: 24px;
}

/* Pill category bar */
.pill-bar-wrapper {
    margin-bottom: 8px;
    padding: 4px;
    background: var(--surface-variant);
    border-radius: 24px;
}

.pill-category-bar {
    display: flex;
    gap: 12px;
    padding: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.pill-category-bar::-webkit-scrollbar {
    display: none;
}

.pill-item {
    padding: 10px 20px;
    background: var(--card-background);
    border-radius: 16px;
    font-size: 14px;
    font-weight: 800;
    color: var(--on-surface-variant);
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition-standard);
    border: 1px solid var(--outline-variant);
    display: flex;
    align-items: center;
    gap: 8px;
}

.pill-item:hover {
    background: var(--primary-container);
    color: var(--primary);
    border-color: var(--primary);
}

.pill-item.active {
    background: var(--primary);
    color: var(--on-primary);
    box-shadow: var(--elevation-2);
    border-color: var(--primary);
}

.pill-item.active i {
    color: var(--on-primary);
}

/* Forms and Inputs */
.form-group {
    margin-bottom: 24px;
    text-align: right;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 800;
    font-size: 14px;
    color: var(--primary);
    padding-right: 4px;
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 14px 18px;
    border-radius: 16px;
    border: 2px solid var(--outline-variant);
    background: var(--card-background);
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition-standard);
    color: var(--on-surface);
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 4px var(--primary-container);
}

/* Modals - Material 3 Dialogs */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    padding: 24px;
}

.modal-card {
    background: var(--card-background);
    padding: 40px;
    border-radius: 32px;
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 40px 100px rgba(0,0,0,0.2);
    animation: modalPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 1px solid var(--outline-variant);
}

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.modal-header h3 {
    font-size: 24px;
    font-weight: 900;
    color: var(--primary);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 16px;
    margin-top: 40px;
}

/* Data Tables */
.data-table-wrapper {
    border-radius: 24px;
    background: var(--card-background);
    border: 1px solid var(--outline-variant);
    overflow: hidden;
    box-shadow: var(--elevation-1);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background: var(--surface-variant);
    padding: 20px 24px;
    text-align: right;
    font-weight: 900;
    color: var(--primary);
    font-size: 15px;
}

.data-table td {
    padding: 18px 24px;
    border-bottom: 1px solid var(--surface-variant);
    font-size: 15px;
    font-weight: 600;
}

.data-table tr:hover {
    background: var(--primary-container);
}

/* Status Badges */
.status-pill {
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.status-done { background: #DCFCE7; color: #166534; }
.status-progress { background: #FEF3C7; color: #92400E; }
.status-notstarted { background: #F1F5F9; color: #475569; }

/* Image Attachments Grid & Thumbs - M3 Styled */
.attachments-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 12px;
    margin-bottom: 12px;
}

.attachment-thumb {
    width: 220px;
    height: 160px;
    object-fit: cover;
    border-radius: 16px;
    cursor: pointer;
    border: 1.5px solid var(--outline-variant);
    transition: var(--transition-standard);
    background-color: var(--surface-variant);
}

.attachment-thumb:hover {
    transform: scale(1.02);
    box-shadow: var(--elevation-2);
    border-color: var(--primary);
}

@media (max-width: 600px) {
    .attachment-thumb {
        width: 100%;
        max-width: 100%;
        height: 200px;
        border-radius: 12px;
    }
}

/* Lightbox Preview */
.lightbox-card {
    background: transparent;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.lightbox-card img {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    object-fit: contain;
}

.btn-close-lightbox {
    position: absolute;
    top: -40px;
    right: 0;
    background: white;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* Login Screen - Professional Overhaul */
.login-container {
    min-height: 100vh; /* changed from height: 100%; to min-height */
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top right, var(--secondary), var(--primary));
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    overflow-y: auto; /* Allow scrolling if content overflows */
    padding: 20px; /* Add padding to prevent edges touching */
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 60px 48px;
    border-radius: 40px;
    box-shadow: 0 50px 100px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 480px;
    text-align: center;
}

.login-header i {
    font-size: 64px;
    color: var(--primary);
    margin-bottom: 24px;
    background: var(--primary-container);
    width: 100px;
    height: 100px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 32px;
}

.login-header h2 {
    font-size: 32px;
    font-weight: 900;
    color: var(--primary);
    margin-bottom: 12px;
}

.login-header p {
    color: var(--on-surface-variant);
    margin-bottom: 40px;
}

/* Mobile Responsiveness Improvements */
@media (max-width: 900px) {
    html, body {
        height: auto !important;
        min-height: 100%;
        overflow: auto !important;
    }

    .dashboard-container {
        flex-direction: column;
        max-width: 100%;
        height: auto !important;
        min-height: 100vh;
        overflow: visible !important;
    }

    .sidebar {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100%;
        width: 300px;
        transition: var(--transition-standard);
        border-radius: 32px 0 0 32px;
        z-index: 1000;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        overflow-y: auto;
    }

    .sidebar.active {
        right: 0;
    }

    .main-content {
        height: auto !important;
        min-height: 100vh;
        overflow-y: visible !important;
        padding: 15px;
        padding-bottom: 140px;
        gap: 15px;
        width: 100%;
        box-sizing: border-box;
        overflow-x: hidden;
    }

    .login-card {
        padding: 40px 24px;
        width: 95%;
        border-radius: 30px;
    }

    .login-header i {
        width: 80px;
        height: 80px;
        font-size: 48px;
        margin-bottom: 16px;
    }

    .login-header h2 {
        font-size: 26px;
    }

    .top-header {
        flex-direction: column;
        align-items: stretch;
        padding: 15px;
        border-radius: 0 0 24px 24px;
        gap: 15px;
        width: 100%;
        box-sizing: border-box;
        position: static;
    }

    .header-actions {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .search-wrapper {
        grid-column: span 2;
    }

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

    .mobile-nav-bar {
        display: none !important;
    }

    .nav-item-mobile {
        width: 52px;
        height: 52px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 16px;
        font-size: 24px;
        color: var(--on-surface-variant);
        text-decoration: none;
        transition: var(--transition-fast);
    }

    .nav-item-mobile.active {
        background: var(--primary);
        color: var(--on-primary);
        transform: translateY(-8px);
        box-shadow: 0 8px 16px rgba(26, 35, 126, 0.3);
    }

    .btn-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        background: var(--primary-container);
        color: var(--primary);
        border: none;
        border-radius: 14px;
        font-size: 24px;
    }
}

@media (min-width: 901px) {
    .mobile-nav-bar { display: none; }
    .btn-menu-toggle { display: none; }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.animate-fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* View/Print Report Overlay */
.print-only-report {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #f8fafc;
    z-index: 5000;
    overflow-y: auto;
    padding: 40px 20px;
}
.print-only-report.active {
    display: block;
}

@media print {
    body * { visibility: hidden; }
    #singleReportPrintContainer, #singleReportPrintContainer * { visibility: visible; }
    #singleReportPrintContainer { position: absolute; left: 0; top: 0; width: 100%; padding: 0; display: block !important; }
    #singleReportPrintContainer div {
        page-break-inside: avoid !important;
        break-inside: avoid !important;
    }
    .no-print { display: none !important; }
    .force-print-visible { visibility: visible !important; display: block !important; }
    .force-print-visible * { visibility: visible !important; }
}

/* Utility Classes */
.hidden { display: none !important; }

/* Modern M3 Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch .slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--outline);
    transition: .3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 20px;
}

.switch .slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.switch input:checked + .slider {
    background-color: var(--primary);
}

.switch input:checked + .slider:before {
    transform: translateX(16px);
}