/* ==================== Global Styles ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --sidebar-width: 260px;
    --topbar-height: 64px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-color);
    color: var(--text-primary);
    line-height: 1.6;
}

/* ==================== Login Page ==================== */
.page {
    display: none;
}

.page.active {
    display: block;
}

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

.login-header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

.logo {
    font-size: 64px;
    margin-bottom: 20px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.login-header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.login-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.subtitle {
    font-size: 0.95rem !important;
    opacity: 0.85 !important;
    font-style: italic;
}

.login-form {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 450px;
}

.login-footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.login-footer p {
    margin: 5px 0;
}

/* ==================== Dashboard Layout ==================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background-color: var(--dark-color);
    color: white;
    overflow-y: auto;
    transition: transform 0.3s ease;
    z-index: 1000;
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header i {
    font-size: 28px;
    color: var(--primary-color);
}

.sidebar-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
}

.user-info {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.user-avatar {
    text-align: center;
    margin-bottom: 12px;
}

.user-avatar i {
    font-size: 48px;
    color: var(--primary-color);
}

.user-details {
    text-align: center;
}

.user-details h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

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

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-item.active {
    background-color: var(--primary-color);
    color: white;
    border-left: 4px solid white;
}

.nav-item i {
    font-size: 18px;
    width: 24px;
}

/* ==================== Main Content ==================== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    background: white;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    z-index: 100;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
    padding: 8px;
    border-radius: 4px;
    transition: background 0.3s;
}

.sidebar-toggle:hover {
    background-color: var(--light-color);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.topbar-item {
    position: relative;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background 0.3s;
}

.topbar-item:hover {
    background-color: var(--light-color);
}

.topbar-item i {
    font-size: 20px;
    color: var(--text-secondary);
}

.topbar-item .badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.topbar-user i {
    font-size: 32px;
    color: var(--primary-color);
}

/* ==================== Content Area ==================== */
.content-area {
    padding: 30px;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

/* ==================== Cards ==================== */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 24px;
}

/* ==================== Stats Grid ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 24px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
}

.stat-icon.primary { background-color: var(--primary-color); }
.stat-icon.success { background-color: var(--success-color); }
.stat-icon.danger { background-color: var(--danger-color); }
.stat-icon.warning { background-color: var(--warning-color); }
.stat-icon.info { background-color: var(--info-color); }

.stat-details h4 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}

.stat-details .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ==================== Charts ==================== */
.charts-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

/* ==================== Forms ==================== */
.form-sections {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.form-section {
    background: var(--light-color);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.form-section h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-section h4 i {
    color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-row:last-child {
    margin-bottom: 0;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-group label i {
    color: var(--primary-color);
    margin-right: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
    transition: all 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* ==================== Buttons ==================== */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: #1d4ed8;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #475569;
}

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

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

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

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

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1.05rem;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

/* ==================== Tables ==================== */
.table-container {
    overflow-x: auto;
}

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

.data-table thead {
    background-color: var(--light-color);
}

.data-table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    font-size: 0.9rem;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.data-table tbody tr:hover {
    background-color: var(--light-color);
}

/* ==================== Badges ==================== */
.badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
}

.badge-primary { background-color: var(--primary-color); color: white; }
.badge-success { background-color: var(--success-color); color: white; }
.badge-danger { background-color: var(--danger-color); color: white; }
.badge-warning { background-color: var(--warning-color); color: white; }
.badge-info { background-color: var(--info-color); color: white; }
.badge-secondary { background-color: var(--secondary-color); color: white; }

/* Risk Level Badges */
.badge.low-risk { background-color: #10b981; }
.badge.medium-risk { background-color: #f59e0b; }
.badge.high-risk { background-color: #ef4444; }
.badge.critical-risk { background-color: #7c3aed; }

/* ==================== Alerts ==================== */
.alert {
    padding: 14px 18px;
    border-radius: 6px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background-color: #d1fae5;
    border: 1px solid #6ee7b7;
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    border: 1px solid #fca5a5;
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    border: 1px solid #fde68a;
    color: #92400e;
}

.alert-info {
    background-color: #dbeafe;
    border: 1px solid #93c5fd;
    color: #1e40af;
}

/* ==================== Modals ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    overflow-y: auto;
    padding: 20px;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-content.modal-large {
    max-width: 800px;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background 0.3s;
}

.modal-close:hover {
    background-color: var(--light-color);
}

.modal-body {
    padding: 24px;
}

/* ==================== Search & Filters ==================== */
.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-box input {
    width: 100%;
    padding: 10px 14px 10px 44px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.date-filters {
    display: flex;
    gap: 12px;
    align-items: center;
}

.date-filters input {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

/* ==================== Pagination ==================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 20px;
}

.pagination button {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background: white;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s;
}

.pagination button:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination button.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ==================== Activity List ==================== */
.activity-list {
    max-height: 400px;
    overflow-y: auto;
}

.activity-item {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: start;
    gap: 12px;
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-content h5 {
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.activity-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ==================== Report Content ==================== */
.report-placeholder {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.report-placeholder i {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.report-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.report-section {
    margin-bottom: 30px;
}

.report-section h4 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

/* ==================== Prediction Result ==================== */
.prediction-result {
    text-align: center;
}

.risk-indicator {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 30px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    border: 8px solid;
}

.risk-indicator.low {
    border-color: var(--success-color);
    background-color: rgba(16, 185, 129, 0.1);
}

.risk-indicator.medium {
    border-color: var(--warning-color);
    background-color: rgba(245, 158, 11, 0.1);
}

.risk-indicator.high {
    border-color: var(--danger-color);
    background-color: rgba(239, 68, 68, 0.1);
}

.risk-indicator.critical {
    border-color: #7c3aed;
    background-color: rgba(124, 58, 237, 0.1);
}

.risk-indicator h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.risk-indicator .confidence {
    font-size: 2rem;
    font-weight: 700;
}

.probabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin: 30px 0;
}

.probability-item {
    padding: 16px;
    background-color: var(--light-color);
    border-radius: 8px;
    text-align: center;
}

.probability-item h5 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.probability-item .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.recommendation-box {
    background-color: #fef3c7;
    border: 2px solid #fbbf24;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.recommendation-box h4 {
    color: #92400e;
    margin-bottom: 12px;
}

.recommendation-box p {
    color: #78350f;
    line-height: 1.6;
}

/* ==================== Responsive Design ==================== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .charts-row {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .view-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        max-width: 100%;
    }
}

/* ==================== Utility Classes ==================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary-color); }
.text-danger { color: var(--danger-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-secondary { color: var(--text-secondary); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.hidden { display: none !important; }
.show { display: block !important; }