:root {
    /* Base modern palette */
    --bg-color: #f3f4f6;

    /* Modern Sidebar Gradient */
    --sidebar-bg: #111827;
    --sidebar-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --sidebar-text: #e2e8f0;
    --sidebar-muted: #94a3b8;
    --sidebar-hover: rgba(255, 255, 255, 0.1);

    /* Component Colors */
    --card-bg: #ffffff;
    --text-primary: #111827;
    --text-secondary: #6b7280;

    /* Modern Accent & Gradients */
    --accent-color: #6366f1;
    --accent-hover: #4f46e5;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);

    /* Statistics Card Gradients */
    --grad-purple: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
    --grad-blue: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    --grad-green: linear-gradient(135deg, #34d399 0%, #10b981 100%);
    --grad-orange: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    --grad-pink: linear-gradient(135deg, #f472b6 0%, #db2777 100%);

    /* Status Colors */
    --danger-color: #ef4444;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;

    /* Borders & Inputs */
    --border-color: #e5e7eb;
    --input-bg: #f9fafb;
    --input-border: #d1d5db;

    /* UI Properties */
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --font-stack: 'Inter', system-ui, -apple-system, sans-serif;

    /* Enhanced Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

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

body {
    font-family: var(--font-stack);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 14px;
}

a {
    text-decoration: none;
    color: var(--accent-color);
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-hover);
}

ul {
    list-style: none;
}

/* Layout */
.admin-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Modern Sidebar */
.sidebar {
    width: 250px;
    background: var(--sidebar-bg);
    background: var(--sidebar-gradient);
    border-right: none;
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    position: fixed;
    top: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 100;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.05);
    color: var(--sidebar-text);
}

.sidebar-header {
    margin-bottom: 2rem;
    padding: 0 0.5rem 1.5rem 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
}

.logo {
    display: block;
    transition: transform 0.2s;
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.nav-links {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
    color: var(--sidebar-muted);
    font-weight: 500;
    gap: 0.875rem;
    transition: all 0.2s ease-in-out;
    margin-bottom: 2px;
}

.nav-item i {
    width: 1.5rem;
    text-align: center;
    font-size: 1.1em;
    transition: transform 0.2s;
}

.nav-item:hover {
    background-color: var(--sidebar-hover);
    color: #ffffff;
    text-decoration: none;
    transform: translateX(4px);
}

.nav-item:hover i {
    transform: scale(1.1);
}

.nav-item.active {
    background: var(--accent-gradient);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Main Content */
.main-wrapper {
    margin-left: 250px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--bg-color);
}

.top-navbar {
    background: #ffffff;
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 50;
    height: 64px;
}

.main-content {
    margin-left: 0;
    padding: 2rem;
    flex: 1;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Modern Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--card-bg);
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    height: 100%;
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.stat-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    background: #f3f4f6;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.stat-card:hover .stat-icon {
    transform: scale(1.1) rotate(5deg);
}

/* Card Variants */
.stat-card.variant-purple .stat-icon {
    background: rgba(99, 102, 241, 0.1);
    color: #6366f1;
}

.stat-card.variant-blue .stat-icon {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.stat-card.variant-green .stat-icon {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.stat-card.variant-orange .stat-icon {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.stat-card.variant-pink .stat-icon {
    background: rgba(236, 72, 153, 0.1);
    color: #ec4899;
}

/* Gradient Cards (Optional) */
.stat-card.gradient-purple {
    background: var(--grad-purple);
    color: white;
}

.stat-card.gradient-purple .stat-label,
.stat-card.gradient-purple .stat-value,
.stat-card.gradient-purple .stat-trend {
    color: white;
}

.stat-card.gradient-purple .stat-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.stat-card.gradient-blue {
    background: var(--grad-blue);
    color: white;
}

.stat-card.gradient-blue .stat-label,
.stat-card.gradient-blue .stat-value,
.stat-card.gradient-blue .stat-trend {
    color: white;
}

.stat-card.gradient-blue .stat-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.stat-card.gradient-green {
    background: var(--grad-green);
    color: white;
}

.stat-card.gradient-green .stat-label,
.stat-card.gradient-green .stat-value,
.stat-card.gradient-green .stat-trend {
    color: white;
}

.stat-card.gradient-green .stat-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.stat-card.gradient-orange {
    background: var(--grad-orange);
    color: white;
}

.stat-card.gradient-orange .stat-label,
.stat-card.gradient-orange .stat-value,
.stat-card.gradient-orange .stat-trend {
    color: white;
}

.stat-card.gradient-orange .stat-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.stat-card.gradient-pink {
    background: var(--grad-pink);
    color: white;
}

.stat-card.gradient-pink .stat-label,
.stat-card.gradient-pink .stat-value,
.stat-card.gradient-pink .stat-trend {
    color: white;
}

.stat-card.gradient-pink .stat-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 0;
}

.stat-trend {
    font-size: 0.8125rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.stat-trend.up {
    color: var(--success-color);
}

.stat-trend.down {
    color: var(--danger-color);
}

.stat-trend.neutral {
    color: var(--text-secondary);
}

/* Tables */
.table-container {
    background-color: var(--card-bg);
    border: none;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin-top: 2rem;
    box-shadow: var(--shadow-md);
}

.description-header {
    background-color: #ffffff;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.description-header i {
    color: var(--accent-color);
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    white-space: nowrap;
}

.custom-table th {
    background-color: #f9fafb;
    padding: 1rem 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.custom-table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
    font-size: 0.875rem;
    transition: background-color 0.2s;
}

.custom-table tr:hover td {
    background-color: #f8fafc;
}

/* Modern Buttons */
.action-btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s;
    text-decoration: none !important;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 2px 4px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.35);
    transform: translateY(-1px);
}

.btn-danger {
    background-color: #fef2f2;
    color: var(--danger-color);
    border-color: #fee2e2;
}

.btn-danger:hover {
    background-color: #fee2e2;
    transform: translateY(-1px);
}

.btn-outline {
    background-color: white;
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-outline:hover {
    background-color: #f9fafb;
    border-color: var(--text-primary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* Forms */
.form-card {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--shadow-md);
    border: none;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-control,
.form-input,
.form-select,
.form-textarea {
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    outline: none;
    width: 100%;
    transition: all 0.2s;
    font-family: inherit;
}

.form-control:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--accent-color);
    background-color: #fff;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

.btn-block {
    width: 100%;
    text-align: center;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    line-height: 1.25;
}

.badge-secondary {
    color: var(--text-secondary);
    background-color: #f3f4f6;
}

.badge-success {
    color: #065f46;
    background-color: #ecfdf5;
}

.badge-warning {
    color: #92400e;
    background-color: #fffbeb;
}

/* Logged in avatar */
.user-menu img {
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s;
}

.user-menu a:hover img {
    transform: scale(1.1);
}

/* Modern Login Page */
.login-page {
    background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--glass-shadow);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-top: 1rem;
}

.login-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.login-footer a {
    color: var(--accent-color);
    font-weight: 600;
    text-decoration: underline;
}

.login-footer a:hover {
    color: var(--accent-hover);
}

/* File Input */
.form-file {
    padding: 0.5rem;
    font-size: 0.875rem;
    background: #f9fafb;
    border: 1px dashed var(--border-color);
    cursor: pointer;
    border-radius: var(--radius-md);
}

.form-file:hover {
    background: #f1f5f9;
    border-color: var(--accent-color);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* Sidebar Scrollbar */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

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

.sidebar::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
}

.sidebar:hover::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.2);
}

/* User Dropdown / Drawer */
.user-menu {
    position: relative;
}

.user-menu-trigger {
    display: flex;
    align-items: center;
    gap: 10px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: background-color 0.2s;
    text-decoration: none;
    color: var(--text-primary);
}

.user-menu-trigger:hover,
.user-menu-trigger.active {
    background-color: #f3f4f6;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    width: 220px;
    display: none;
    /* Changed from opacity/visibility to display */
    border: 1px solid var(--border-color);
    z-index: 1000;
}

.user-dropdown.show {
    display: block;
    animation: fadeIn 0.1s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.dropdown-user-name {
    font-weight: 600;
    color: var(--text-primary);
    display: block;
}

.dropdown-user-role {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: background-color 0.2s;
}

.dropdown-item:hover {
    background-color: #f9fafb;
    color: var(--accent-color);
}

.dropdown-item i {
    width: 1.25rem;
    text-align: center;
    color: var(--text-secondary);
}

.dropdown-item:hover i {
    color: var(--accent-color);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 0.5rem 0;
}

/* Clickable Stats Cards */
a.stat-card {
    text-decoration: none;
    cursor: pointer;
}