:root {
    /* Primary Color Scheme */
    --primary-color: #FFFFFF;
    --secondary-color: #2369D1;
    --accent-bg-color: #D8E6F8;
    
    /* Complementary Colors */
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-light: #a0aec0;
    
    /* Background Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --bg-overlay: rgba(35, 105, 209, 0.1);
    
    /* Border Colors */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e0;
    --border-dark: #a0aec0;
    
    /* Status Colors */
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --error-color: #f56565;
    --info-color: #4299e1;
    
    /* Hover States */
    --secondary-hover: #1c5aa8;
    --accent-hover: #c3d9f1;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(35, 105, 209, 0.1);
    --shadow-md: 0 4px 6px rgba(35, 105, 209, 0.1);
    --shadow-lg: 0 10px 15px rgba(35, 105, 209, 0.15);
    --shadow-xl: 0 20px 25px rgba(35, 105, 209, 0.2);

    /* NEW: Enhanced Variables */
    --gradient-primary: linear-gradient(135deg, var(--secondary-color) 0%, #1a56db 100%);
    --gradient-success: linear-gradient(135deg, var(--success-color) 0%, #38a169 100%);
    --gradient-warning: linear-gradient(135deg, var(--warning-color) 0%, #dd6b20 100%);
    --gradient-info: linear-gradient(135deg, #0069ff, #0091ea);
    --icon-solid: "Font Awesome 6 Free";
    --shadow-focus: 0 0 0 4px rgba(35, 105, 209, 0.15);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--accent-bg-color) 0%, #f0f7ff 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

.hidden {
    display: none !important;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(35, 105, 209, 0.2);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: var(--primary-color);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    width: 90%;
    max-width: 420px;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.login-header {
    text-align: center;
}

.logo {
    width: 80px;
    height: auto;
    margin-bottom: 1rem;
    border-radius: 12px;
}

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

.login-header h2 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.input-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.input-group input {
    width: 100%;
    padding: 15px 15px 15px 45px;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    font-size: 1rem;
    background: var(--bg-secondary);
    transition: var(--transition-smooth);
}

.input-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    background: var(--primary-color);
    box-shadow: var(--shadow-focus);
}

/* ENHANCED: Buttons */
.btn-primary, .btn-secondary {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--primary-color);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.btn-primary::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 ease;
}

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

.btn-primary:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--text-muted);
    color: var(--primary-color);
    width: auto;
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 500;
}

.btn-secondary:hover {
    background: var(--text-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.error-message {
    color: var(--error-color);
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
    background: rgba(245, 101, 101, 0.08);
    border-radius: 12px;
    border: 1px solid rgba(245, 101, 101, 0.2);
    font-weight: 500;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.error-message:before {
    content: "⚠️";
    font-size: 1rem;
}

.error-message.show {
    display: flex;
    animation: errorSlideIn 0.3s ease;
}

@keyframes errorSlideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Dashboard Styles */
.dashboard {
    min-height: 100vh;
    background: var(--bg-secondary);
    scroll-behavior: smooth;
}

.header {
    background: var(--primary-color);
    box-shadow: var(--shadow-md);
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-light);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-title {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-logo {
    width: 50px;
    height: auto;
    border-radius: 8px;
}

.header h1 {
    color: var(--secondary-color);
    font-size: 1.8rem;
    font-weight: 700;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.admin-info {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: var(--accent-bg-color);
    border-radius: 20px;
    font-size: 0.9rem;
}

/* ENHANCED: Navigation Tabs */
.nav-tabs {
    background: var(--primary-color);
    border-bottom: 1px solid var(--border-light);
    padding: 0 2rem;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 0.5rem;
    position: relative;
}

.nav-tab {
    background: none;
    border: none;
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 10px;
    border-radius: 12px 12px 0 0;
    position: relative;
    overflow: hidden;
}

.nav-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.1;
    transition: left 0.3s ease;
}

.nav-tab:hover::before {
    left: 0;
}

.nav-tab:hover {
    color: var(--secondary-color);
    background: var(--accent-bg-color);
}

.nav-tab.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
    background: var(--accent-bg-color);
    font-weight: 600;
}

.nav-tab.active::before {
    left: 0;
}

/* Tab Content */
.tab-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    display: none;
}

.tab-content.active {
    display: block;
}

/* ENHANCED: Stats Grid */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.75rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--primary-color);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: var(--transition-smooth);
    animation: fadeInUp 0.5s ease-out;
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

/* ENHANCED: Individual Stat Card Colors */
.stat-card:nth-child(1) .stat-icon {
    background: var(--gradient-primary);
}

.stat-card:nth-child(2) .stat-icon {
    background: var(--gradient-success);
}

.stat-card:nth-child(3) .stat-icon {
    background: var(--gradient-warning);
}

.stat-card:nth-child(4) .stat-icon {
    background: var(--gradient-info);
}

.stat-card:nth-child(5) .stat-icon {
    background: linear-gradient(135deg, #4c51bf, #667eea);
}

.stat-icon {
    background: linear-gradient(135deg, #2369d1, #4f83f2);
    width: 72px;
    height: 72px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--primary-color);
}

.stat-info h3 {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.stat-info p {
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-size: 1rem;
}

/* ENHANCED: Table Styles */
.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.table-header h2 {
    color: var(--text-primary);
    font-weight: 700;
    margin: 0;
}

.table-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* ENHANCED: Search Input */
.search-input {
    padding: 12px 16px;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    font-size: 0.95rem;
    width: 280px;
    background: var(--primary-color);
    transition: var(--transition-smooth);
    position: relative;
}

.search-input:focus {
    outline: none;
    border-color: var(--secondary-color);
    background: var(--primary-color);
    box-shadow: var(--shadow-focus);
    transform: translateY(-2px);
}

/* ENHANCED: Table Container */
.table-container {
    background: var(--primary-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    position: relative;
    animation: fadeInUp 0.5s ease-out;
}

/* ENHANCED: Table Header */
.table-container thead {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--accent-bg-color) 100%);
}

.table-container th {
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-light);
    padding: 1.25rem 1rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table-container td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-smooth);
}

/* ENHANCED: Table Rows */
.table-container tbody tr {
    transition: var(--transition-smooth);
}

.table-container tbody tr:hover {
    background: var(--accent-bg-color);
    transform: scale(1.01);
    box-shadow: var(--shadow-sm);
}

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

/* ENHANCED: Progress Styles */
.progress-overview {
    background: var(--primary-color);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    animation: fadeInUp 0.5s ease-out;
}

.progress-overview h2 {
    color: var(--text-primary);
    font-weight: 700;
    margin: 0 0 1rem 0;
}

/* ENHANCED: Progress Stats */
.progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

/* ENHANCED: Progress Cards */
.progress-card {
    background: var(--primary-color);
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    animation: fadeInUp 0.5s ease-out;
}

.progress-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
}

.progress-card h4 {
    min-width: 100px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
}

/* ENHANCED: Progress Bar */
.progress-bar {
    flex: 1;
    height: 12px;
    background: var(--border-light);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 10px;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

/* NEW: Shimmer Effect for Progress Bars */
.progress-fill::after {
    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%; }
}

.progress-card span {
    min-width: 50px;
    text-align: right;
    font-weight: 600;
    color: var(--secondary-color);
}

/* ENHANCED: Loading Spinner */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-light);
    border-top: 3px solid var(--secondary-color);
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* NEW: Enhanced Action Buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn-action {
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 4px;
}

.btn-view {
    background: var(--info-color);
    color: var(--primary-color);
}

.btn-edit {
    background: var(--success-color);
    color: var(--primary-color);
}

.btn-reset {
    background: var(--error-color);
    color: var(--primary-color);
}

.btn-action:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    opacity: 0.9;
}

/* NEW: Status Badges */
.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-active {
    background: rgba(72, 187, 120, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(72, 187, 120, 0.3);
}

.status-inactive {
    background: rgba(245, 101, 101, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(245, 101, 101, 0.3);
}

.status-pending {
    background: rgba(237, 137, 54, 0.1);
    color: var(--warning-color);
    border: 1px solid rgba(237, 137, 54, 0.3);
}

/* NEW: Empty States */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Enhanced animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Remove outlines and improve button styles */
.nav-tab:focus,
.btn-primary:focus,
.btn-secondary:focus,
.search-input:focus,
.input-group input:focus,
.action-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(35, 105, 209, 0.2);
}

/* Enhanced responsive design */

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        padding: 0 1rem;
    }
    
    .nav-tabs {
        overflow-x: auto;
        padding: 0 1rem;
        scrollbar-width: none;
    }
    
    .nav-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .tab-content {
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .table-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .table-actions {
        flex-direction: column;
    }
    
    .search-input {
        width: 100%;
        max-width: none;
    }
    
    .table-container {
        border-radius: 12px;
        overflow-x: auto;
    }
    
    .action-buttons {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .btn-action {
        width: 100%;
        justify-content: center;
    }
}

/* Analytics Styles */
.analytics-overview {
    padding: 2rem;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.analytics-large {
    grid-column: span 2;
}

@media (max-width: 1200px) {
    .analytics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .analytics-large {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .analytics-grid {
        grid-template-columns: 1fr;
    }
    
    .analytics-large {
        grid-column: span 1;
    }
}

.analytics-section {
    background: var(--primary-color);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    transition: var(--transition-smooth);
}

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

.analytics-section h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.analytics-section h3 i {
    font-size: 1.2em;
}

.analytics-list {
    max-height: 400px;
    overflow-y: auto;
    border-radius: 8px;
    border: 1px solid var(--border-light);
}

.analytics-large .analytics-list {
    max-height: 500px;
}

.analytics-list::-webkit-scrollbar {
    width: 6px;
}

.analytics-list::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

.analytics-list::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 3px;
}

.analytics-list::-webkit-scrollbar-thumb:hover {
    background: var(--border-dark);
}

.rating-distribution {
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-light);
}


/* Enhanced Stats Grid for More Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
}

@media (min-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1600px) {
    .stats-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.action-btn {
    padding: 0.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
}

.btn-view {
    background: var(--info-color);
    color: white;
}

.btn-view:hover {
    background: #3182ce;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-reset {
    background: var(--warning-color);
    color: white;
}

.btn-reset:hover {
    background: #dd6b20;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-delete {
    background: var(--error-color);
    color: white;
}

.btn-delete:hover {
    background: #e53e3e;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Tooltip Styles */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.95);
    color: white;
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    pointer-events: none;
    z-index: 2147483647;
    margin-bottom: 0.6rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.tooltip::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: rgba(0, 0, 0, 0.95);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    pointer-events: none;
    z-index: 2147483647;
    margin-bottom: -6px;
}

.tooltip:hover::after,
.tooltip:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Tooltip variant for header buttons (appears above) */
.tooltip-top::after {
    top: auto;
    bottom: 100%;
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.tooltip-top::before {
    top: auto;
    bottom: 100%;
    border-bottom-color: transparent;
    border-top-color: rgba(0, 0, 0, 0.9);
    margin-top: 0;
    margin-bottom: -5px;
}

/* Enhanced Table for More Columns */
.table-container {
    overflow-x: auto;
    overflow-y: visible;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    background: var(--primary-color);
}

#usersTable {
    width: 100%;
    min-width: 900px; /* Ensure table doesn't get too cramped */
    border-collapse: collapse;
}

#usersTable th,
#usersTable td {
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.9rem;
}

#usersTable th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

#usersTable th:nth-child(1),
#usersTable td:nth-child(1),
#usersTable th:nth-child(2),
#usersTable td:nth-child(2) {
    text-align: left;
}

#usersTable th:nth-child(n+3),
#usersTable td:nth-child(n+3) {
    text-align: center;
}

#usersTable th {
    position: sticky;
    top: 0;
    z-index: 10;
}

/* NEW: Print styles */
@media print {
    .nav-tabs,
    .header-actions,
    .table-actions {
        display: none;
    }
    
    .tab-content {
        display: block !important;
    }
}