:root {
    --primary-color: #4F46E5; /* Indigo 600 */
    --primary-hover: #4338CA;
    --bg-color: #F8FAFC; /* Slate 50 */
    --surface-color: #FFFFFF;
    --text-main: #0F172A; /* Slate 900 */
    --text-muted: #64748B; /* Slate 500 */
    --border-color: #E2E8F0; /* Slate 200 */
    
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    
    --sidebar-width: 260px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
}

.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--surface-color);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.sidebar-header {
    height: 70px;
    display: flex;
    align-items: center;
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
}

.logo i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.logo .accent {
    color: var(--primary-color);
}

.sidebar-nav {
    flex: 1;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
    margin: 16px 0 8px 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 10px 16px;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.nav-item i {
    font-size: 1.2rem;
}

.nav-item:hover {
    background-color: var(--bg-color);
    color: var(--text-main);
}

.nav-item.active {
    background-color: #EEF2FF; /* Indigo 50 */
    color: var(--primary-color);
}

.sidebar-footer {
    padding: 24px 16px;
    border-top: 1px solid var(--border-color);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.user-role {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background-color: var(--bg-color);
}

.top-header {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 5;
}

.top-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

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

.content-wrapper {
    padding: 40px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Sections */
.view-section {
    display: none;
    animation: fadeIn 0.3s ease-out forwards;
}

.view-section.active {
    display: block;
}

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

/* UI Components */
.panel {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.dashboard-grid.two-col {
    grid-template-columns: repeat(2, 1fr);
}

.stat-card {
    background: var(--surface-color);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.stat-header h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.icon-wrapper {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.bg-warning { background: #FEF3C7; color: #D97706; }
.bg-primary { background: #EEF2FF; color: var(--primary-color); }
.bg-success { background: #D1FAE5; color: #059669; }

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-unit {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-trend {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 4px;
    font-weight: 500;
    margin-bottom: 8px;
}

.stat-trend.positive { color: var(--success-color); }
.stat-trend.negative { color: var(--danger-color); }

.stat-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Quick Actions */
.action-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 16px;
}

.action-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.action-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.1);
}

.action-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.action-card h4 {
    margin-bottom: 8px;
    font-size: 1.05rem;
}

.action-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-family: inherit;
}

.btn.sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

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

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

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    background-color: var(--bg-color);
    border-color: var(--text-muted);
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
}

.btn-icon:hover {
    background: var(--bg-color);
}

.btn-icon .badge {
    position: absolute;
    top: 0;
    right: 0;
    width: 10px;
    height: 10px;
    background: var(--danger-color);
    border-radius: 50%;
    border: 2px solid var(--surface-color);
}

.w-100 { width: 100%; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 24px; }

/* Forms */
.form-group {
    margin-bottom: 16px;
    width: 100%;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color 0.2s;
    background: var(--surface-color);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-row {
    display: flex;
    gap: 16px;
}

/* Utility */
.hidden { display: none !important; }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-primary { color: var(--primary-color); }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.8rem; }
.border-success { border-color: var(--success-color); }

.divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 24px 0;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    background: var(--bg-color);
    transition: all 0.2s;
    cursor: pointer;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary-color);
    background: rgba(79, 70, 229, 0.05);
}

.upload-zone i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.upload-zone h3 {
    margin-bottom: 8px;
}

.upload-zone p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-warning { background: #FEF3C7; color: #B45309; }

/* Score Display */
.score-display {
    display: flex;
    align-items: center;
    gap: 16px;
}

.score-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--bg-color);
    border: 4px solid var(--border-color);
}

.score-circle.score-high { border-color: var(--danger-color); color: var(--danger-color); background: #FEF2F2; }
.score-circle.score-medium { border-color: var(--warning-color); color: var(--warning-color); background: #FFFBEB;}
.score-circle.score-low { border-color: var(--success-color); color: var(--success-color); background: #ECFDF5; }

/* Chart Mockups */
.chart-mockup {
    margin-top: 16px;
}

.bar-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.bar-row span:first-child {
    width: 60px;
}

.bar-track {
    flex: 1;
    height: 8px;
    background: var(--bg-color);
    border-radius: 4px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: var(--primary-color);
    border-radius: 4px;
}

/* JD Scanner specific */
.jd-result-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.jd-highlighted-text {
    background: var(--bg-color);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    font-size: 0.95rem;
    line-height: 1.8;
}

.highlight-bias {
    background-color: #FEE2E2;
    border-bottom: 2px solid var(--danger-color);
    cursor: pointer;
    padding: 0 4px;
    border-radius: 2px;
    position: relative;
}

.highlight-bias:hover {
    background-color: #FECACA;
}

.suggestions-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}

.suggestion-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--warning-color);
    border-radius: var(--radius-sm);
    padding: 16px;
}

.suggestion-card p {
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.suggestion-card .bad { color: var(--danger-color); text-decoration: line-through; margin-right: 8px; }
.suggestion-card .good { color: var(--success-color); font-weight: 500; }

.bias-breakdown {
    list-style: none;
    padding: 0;
}

.bias-breakdown li {
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 4px;
}

/* Counterfactual */
.cf-comparison {
    display: flex;
    align-items: stretch;
    gap: 16px;
}

.cf-card {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
}

.cf-card.original { background: var(--bg-color); }
.cf-card.counterfactual { background: #EEF2FF; border-color: #C7D2FE; }

.cf-header {
    font-weight: 600;
    margin-bottom: 8px;
}

.cf-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.cf-score {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.cf-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.cf-vs {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-muted);
}

.alert {
    padding: 16px;
    border-radius: var(--radius-md);
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.alert-danger {
    background: #FEF2F2;
    border: 1px solid #FCA5A5;
    color: #991B1B;
}

.alert i {
    font-size: 1.5rem;
}

.alert strong {
    display: block;
    margin-bottom: 4px;
}

.alert p {
    font-size: 0.9rem;
}

/* Chatbot Widget */
.chatbot-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
}
.chatbot-fab {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 1.5rem;
    box-shadow: 0 10px 25px rgba(79, 70, 229, 0.4);
}
.chatbot-panel {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    height: 450px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--surface-color);
    overflow: hidden;
    transition: all 0.3s ease;
}
.chatbot-panel.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
}
.chatbot-header {
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.chatbot-header h3 {
    font-size: 1rem;
    margin: 0;
}
.chatbot-header .btn-icon {
    border-color: rgba(255,255,255,0.2);
    color: white;
    width: 30px;
    height: 30px;
}
.chatbot-header .btn-icon:hover {
    background: rgba(255,255,255,0.1);
}
.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.message {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    max-width: 85%;
    font-size: 0.9rem;
    line-height: 1.4;
}
.message.ai {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    align-self: flex-start;
    border-bottom-left-radius: 0;
}
.message.user {
    background: var(--primary-color);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 0;
}
.chatbot-input {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .sidebar-header {
        height: 60px;
        justify-content: space-between;
    }
    
    .sidebar-footer {
        display: none; /* Hide profile on mobile to save space */
    }
    
    .sidebar-nav {
        flex-direction: row;
        overflow-x: auto;
        padding: 10px 16px;
        gap: 16px;
        white-space: nowrap;
    }
    
    .nav-item {
        width: auto;
        padding: 8px 12px;
    }
    
    .nav-category {
        display: none;
    }
    
    .top-header {
        padding: 0 16px;
        height: 60px;
    }
    
    .content-wrapper {
        padding: 16px;
    }
    
    .dashboard-grid, 
    .dashboard-grid.two-col, 
    .action-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .jd-result-container {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .cf-comparison {
        flex-direction: column;
    }
    
    .cf-vs {
        transform: rotate(90deg);
        margin: 16px 0;
    }
    
    .panel {
        padding: 20px;
    }
    
    .upload-zone {
        padding: 24px;
    }
    
    .chatbot-panel {
        width: calc(100vw - 32px);
        right: 16px;
        bottom: 90px;
        height: 400px;
    }
}

/* Advanced Mode 1 Features */
.compliance-card {
    transition: all 0.3s ease;
}

#compliance-details .stat-card {
    background: var(--surface-color);
    transition: transform 0.2s ease;
}

#compliance-details .stat-card:hover {
    transform: translateY(-3px);
}

.badge-success {
    background-color: rgba(40, 167, 69, 0.15);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.badge-danger {
    background-color: rgba(220, 53, 69, 0.15);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

.heatmap-wrapper {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.heatmap-grid div {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.heatmap-grid div:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    cursor: default;
}