/* Global Styles */
:root {
    /* Enhanced Color System */
    --primary-color: #667eea;
    --primary-dark: #5a6fd8;
    --primary-light: #8fa5f3;
    --secondary-color: #6c757d;
    --success-color: #11998e;
    --success-light: #38ef7d;
    --danger-color: #ff6b6b;
    --danger-dark: #ee5a52;
    --warning-color: #feca57;
    --warning-dark: #ff9f43;
    --info-color: #54a0ff;
    --info-dark: #2e86de;
    --light-color: #f8f9fa;
    --dark-color: #667eea;
    
    /* Layout */
    --sidebar-width: 260px;
    --header-height: 70px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --gradient-danger: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
    --gradient-warning: linear-gradient(135deg, #feca57 0%, #ff9f43 100%);
    --gradient-info: linear-gradient(135deg, #54a0ff 0%, #2e86de 100%);
    --gradient-dark: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Typography */
    --font-primary: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

/* Sweet & Smooth Loader Animation */
#loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background: rgba(255, 255, 255, 0.95);
    display: none;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(8px);
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
}

.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(102, 126, 234, 0.1);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: sweetSpin 1.2s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
    position: relative;
}

.loader-spinner::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 2px solid transparent;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: sweetSpin 0.8s linear infinite reverse;
    opacity: 0.7;
}

.loader-spinner::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 12px;
    margin: -6px 0 0 -6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: sweetPulse 1.5s ease-in-out infinite;
}

.loader-text {
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-color);
    letter-spacing: 0.5px;
    animation: sweetFade 2s ease-in-out infinite;
}

@keyframes sweetSpin {
    0% { 
        transform: rotate(0deg) scale(1);
    }
    50% { 
        transform: rotate(180deg) scale(1.05);
    }
    100% { 
        transform: rotate(360deg) scale(1);
    }
}

@keyframes sweetPulse {
    0%, 100% { 
        opacity: 0.3;
        transform: scale(0.8);
    }
    50% { 
        opacity: 1;
        transform: scale(1.2);
    }
}

@keyframes sweetFade {
    0%, 100% { 
        opacity: 0.6;
    }
    50% { 
        opacity: 1;
    }
}

/* Enhanced loader for dark mode */
@media (prefers-color-scheme: dark) {
    #loader-wrapper {
        background: rgba(0, 0, 0, 0.9);
    }
    
    .loader-text {
        color: #ffffff;
    }
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%) !important;
    color: #333;
    overflow-y: auto;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 3px 0 20px rgba(0, 0, 0, 0.08);
    border-right: 1px solid #e9ecef;
}

.sidebar-header {
    padding: 20px 20px 12px 20px; /* moved divider slightly up to align with header */
    border-bottom: 1px solid #e9ecef;
    text-align: center;
    background: rgba(102, 126, 234, 0.05);
}

.sidebar-header h4 {
    margin: 0;
    font-weight: 600;
    font-size: 1.4rem;
    color: #667eea;
}

.sidebar-nav {
    padding: 20px 0;
}

.sidebar .nav-link {
    color: #495057;
    padding: 14px 20px;
    transition: all 0.3s ease;
    border-radius: 0;
    font-weight: 500;
    margin: 2px 12px;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.sidebar .nav-link:last-child {
    border-bottom: none;
}

.sidebar .nav-item:not(:last-child) {
    border-bottom: 1px solid #f1f3f4;
    margin-bottom: 0;
    padding-bottom: 0;
}

.sidebar .nav-item:first-child {
    margin-top: 0;
    padding-top: 0;
}

.sidebar .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.08), transparent);
    transition: left 0.5s ease;
}

.sidebar .nav-link:hover {
    color: #667eea;
    background-color: rgba(102, 126, 234, 0.08);
    transform: translateX(3px);
}

.sidebar .nav-link:hover::before {
    left: 100%;
}

.sidebar .nav-link.active {
    color: #667eea;
    background-color: rgba(102, 126, 234, 0.12);
    border-left: 3px solid #667eea;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.15);
}

.sidebar .nav-link i {
    width: 20px;
    text-align: center;
    margin-right: 10px;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: all 0.3s ease;
}

.header {
    background: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 999;
}

/* Cards */
.card {
    border: none;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
    margin-bottom: 1rem;
}

.card:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    border: none;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 0.95rem;
}

.card-body {
    padding: 16px;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover:before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #1e7e34);
    border: none;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #bd2130);
    border: none;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #d39e00);
    border: none;
    color: #212529;
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color), #117a8b);
    border: none;
}

/* Forms */
.form-control, .form-select {
    border-radius: 6px;
    border: 1px solid #e1e5e9;
    padding: 10px 12px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    line-height: 1.4;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.15rem rgba(0, 123, 255, 0.15);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 6px;
    font-size: 0.9rem;
}

/* Tables */
.table {
    border-radius: 8px;
    overflow: hidden;
    background: white;
    font-size: 0.9rem;
    margin-bottom: 0;
}

.table thead th {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.3px;
    padding: 12px 10px;
    white-space: nowrap;
}

.table tbody tr {
    transition: background-color 0.2s ease;
}

.table tbody tr:hover {
    background-color: rgba(0, 123, 255, 0.04);
}

.table tbody td {
    padding: 10px;
    border-color: #f1f3f4;
    vertical-align: middle;
    font-size: 0.85rem;
}

/* Dashboard Cards */
.stats-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stats-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--info-color));
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.stats-card .icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    opacity: 0.8;
}

.stats-card .number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.stats-card .label {
    color: var(--secondary-color);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

/* Modals */
.modal-content {
    border-radius: 15px;
    border: none;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    border-radius: 15px 15px 0 0;
    padding: 20px;
}

.modal-title {
    font-weight: 600;
    margin: 0;
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid #e9ecef;
}

/* Alerts */
.alert {
    border: none;
    border-radius: 10px;
    font-weight: 500;
    margin-bottom: 20px;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    color: #856404;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1, #bee5eb);
    color: #0c5460;
}

/* Authentication Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.auth-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    width: 100%;
    max-width: 450px;
}

.auth-header {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    padding: 30px;
    text-align: center;
}

.auth-header h3 {
    margin: 0;
    font-weight: 600;
}

.auth-body {
    padding: 30px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 1050;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-card {
        margin-bottom: 20px;
    }
    
    .table-responsive {
        border-radius: 10px;
    }
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

.shadow-custom {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.border-radius-custom {
    border-radius: 8px;
}

/* Compact spacing utilities */
.compact-card .card-body {
    padding: 12px 16px;
}

.compact-table .table td {
    padding: 8px;
    font-size: 0.8rem;
}

.compact-form .form-control {
    padding: 8px 10px;
    font-size: 0.85rem;
}

/* Quick action improvements */
.quick-action-btn {
    transition: all 0.2s ease;
    border-radius: 8px;
    font-weight: 500;
}

.quick-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Alert improvements */
.alert {
    border-radius: 8px;
    font-size: 0.9rem;
    padding: 12px 16px;
    margin-bottom: 1rem;
}

/* Small screen optimizations */
@media (max-width: 576px) {
    .card-body {
        padding: 12px;
    }
    
    .table {
        font-size: 0.8rem;
    }
    
    .btn {
        font-size: 0.85rem;
        padding: 8px 12px;
    }
    
    h5 {
        font-size: 1.1rem;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from { transform: translateX(-100px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #0056b3, #117a8b);
}

/* Enhanced UI Components */
.glass-morphism {
    background: rgba(255, 255, 255, 0.25);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.modern-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    overflow: hidden;
    position: relative;
}

.modern-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.modern-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Enhanced Buttons */
.btn-modern {
    padding: 12px 24px;
    border-radius: var(--border-radius-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left var(--transition-normal);
    z-index: -1;
}

.btn-modern:hover::before {
    left: 100%;
}

.btn-gradient-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.btn-gradient-success {
    background: var(--gradient-success);
    color: white;
    border: none;
}

.btn-gradient-danger {
    background: var(--gradient-danger);
    color: white;
    border: none;
}

.btn-gradient-warning {
    background: var(--gradient-warning);
    color: var(--dark-color);
    border: none;
}

.btn-gradient-info {
    background: var(--gradient-info);
    color: white;
    border: none;
}

/* Enhanced Forms */
.form-floating-modern {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-floating-modern .form-control {
    padding: 12px 16px 12px 16px;
    border: 2px solid #e1e5e9;
    border-radius: var(--border-radius-sm);
    background: transparent;
    transition: all var(--transition-normal);
}

.form-floating-modern .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    background: rgba(102, 126, 234, 0.02);
}

.form-floating-modern label {
    position: absolute;
    top: 0;
    left: 16px;
    transform: translateY(12px);
    background: white;
    padding: 0 8px;
    color: var(--secondary-color);
    transition: all var(--transition-normal);
    pointer-events: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.form-floating-modern .form-control:focus + label,
.form-floating-modern .form-control:not(:placeholder-shown) + label {
    transform: translateY(-10px) scale(0.85);
    color: var(--primary-color);
}

/* Enhanced Sidebar */
.sidebar-modern {
    background: var(--gradient-dark);
    backdrop-filter: blur(10px);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-link-modern {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all var(--transition-normal);
    border-radius: 8px;
    margin: 4px 12px;
    position: relative;
    overflow: hidden;
}

.nav-link-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: left var(--transition-normal);
}

.nav-link-modern:hover {
    color: white;
    transform: translateX(5px);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link-modern:hover::before {
    left: 100%;
}

.nav-link-modern.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.nav-link-modern i {
    width: 20px;
    margin-right: 12px;
    text-align: center;
}

/* Dashboard Enhancements */
.dashboard-stat-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.dashboard-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.dashboard-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 24px;
}

.stat-icon.primary {
    background: var(--gradient-primary);
    color: white;
}

.stat-icon.success {
    background: var(--gradient-success);
    color: white;
}

.stat-icon.danger {
    background: var(--gradient-danger);
    color: white;
}

.stat-icon.warning {
    background: var(--gradient-warning);
    color: var(--dark-color);
}

.stat-icon.info {
    background: var(--gradient-info);
    color: white;
}

/* Enhanced Tables */
.table-modern {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.table-modern thead th {
    background: var(--gradient-dark);
    color: white;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: var(--font-size-xs);
    padding: 16px;
    border: none;
}

.table-modern tbody tr {
    transition: all var(--transition-fast);
    border: none;
}

.table-modern tbody tr:hover {
    background-color: rgba(102, 126, 234, 0.05);
    transform: scale(1.01);
}

.table-modern tbody td {
    padding: 16px;
    border: none;
    vertical-align: middle;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

/* Loading States */
.loading-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.spinner-modern {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(102, 126, 234, 0.1);
    border-left: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Progress Bars */
.progress-modern {
    height: 8px;
    border-radius: 4px;
    background: rgba(102, 126, 234, 0.1);
    overflow: hidden;
}

.progress-bar-modern {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.progress-bar-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Breadcrumbs */
.breadcrumb-modern {
    background: transparent;
    padding: 0;
    margin-bottom: 24px;
}

.breadcrumb-modern .breadcrumb-item {
    color: var(--secondary-color);
    font-size: var(--font-size-sm);
}

.breadcrumb-modern .breadcrumb-item.active {
    color: var(--primary-color);
    font-weight: var(--font-weight-medium);
}

.breadcrumb-modern .breadcrumb-item + .breadcrumb-item::before {
    content: '›';
    color: var(--secondary-color);
    padding: 0 8px;
}

/* Enhanced Mobile Responsive */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    backdrop-filter: blur(2px);
}

@media (max-width: 768px) {
    .sidebar-overlay.show {
        display: block;
    }
    
    .sidebar {
        transform: translateX(-100%);
        z-index: 1050;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .dashboard-stat-card {
        margin-bottom: 16px;
    }
    
    .auth-card {
        margin: 20px;
        max-width: none;
    }
}

/* Notification/Toast Styles */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
}

.toast-modern {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: none;
    min-width: 300px;
}

.toast-modern .toast-header {
    background: transparent;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 12px 16px;
}

.toast-modern .toast-body {
    padding: 12px 16px;
}

/* Success Toast */
.toast-success {
    border-left: 4px solid var(--success-color);
}

.toast-success .toast-header {
    color: var(--success-color);
}

/* Error Toast */
.toast-error {
    border-left: 4px solid var(--danger-color);
}

.toast-error .toast-header {
    color: var(--danger-color);
}

/* Info Toast */
.toast-info {
    border-left: 4px solid var(--info-color);
}

.toast-info .toast-header {
    color: var(--info-color);
}

/* Warning Toast */
.toast-warning {
    border-left: 4px solid var(--warning-color);
}

.toast-warning .toast-header {
    color: var(--warning-dark);
}

/* Mobile Sidebar Styles - Enhanced Fix */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    backdrop-filter: blur(2px);
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.sidebar-overlay.show {
    display: block;
    opacity: 1;
}

/* Mobile responsive styles */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 1050;
        transition: transform 0.3s ease;
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: 280px;
        max-width: 85vw;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    /* Ensure hamburger button is visible on mobile */
    #sidebarToggle {
        display: block !important;
        z-index: 1060;
        position: relative;
    }
    
    /* Prevent body scroll when sidebar is open */
    body.sidebar-open {
        overflow: hidden;
    }
    
    /* Ensure sidebar content is clickable */
    .sidebar .nav-link {
        position: relative;
        z-index: 1060;
    }
    
    /* Ensure dropdown menus work properly */
    .sidebar .collapse {
        z-index: 1060;
    }
}

/* Desktop styles - hide hamburger button */
@media (min-width: 769px) {
    #sidebarToggle {
        display: none !important;
    }
    
    .sidebar-overlay {
        display: none !important;
    }
    
    .sidebar {
        transform: translateX(0) !important;
    }
}