:root {
    --primary: #2c3e50;
    --secondary: #3498db;
    --success: #2ecc71;
    --warning: #f39c12;
    --danger: #e74c3c;
    --light: #ecf0f1;
    --dark: #2c3e50;
    --neutral: #95a5a6;
    --background: #f8f9fa;
    --text: #333;
    --border: #ddd;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: var(--primary);
    color: white;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 10;
}

header h1 {
    margin-bottom: 10px;
    font-weight: 600;
}

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

.card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    padding: 25px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

.card:hover {
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

h2 {
    color: var(--primary);
    margin-bottom: 20px;
    font-weight: 600;
    border-bottom: 2px solid var(--light);
    padding-bottom: 10px;
}

h3 {
    color: var(--secondary);
    margin: 15px 0;
    font-weight: 500;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

input, select, textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 16px;
    background-color: var(--light);
    transition: all 0.3s ease;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

button {
    background-color: var(--secondary);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

button:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

button:active {
    transform: translateY(0);
}

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

.btn-success:hover {
    background-color: #27ae60;
}

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

.btn-danger:hover {
    background-color: #c0392b;
}

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

.btn-warning:hover {
    background-color: #d35400;
}

.btn-light {
    background-color: var(--light);
    color: var(--dark);
}

.btn-light:hover {
    background-color: #dfe6e9;
}

.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 15px;
}

.progress-container {
    width: 100%;
    background-color: var(--light);
    border-radius: 6px;
    margin: 30px 0;
    height: 25px;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.progress-bar {
    height: 25px;
    background-color: var(--secondary);
    border-radius: 6px;
    width: 0%;
    transition: width 0.3s ease;
    text-align: center;
    line-height: 25px;
    color: white;
    font-size: 14px;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tabs {
    display: flex;
    margin-bottom: 30px;
    gap: 5px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1px;
}

.tab {
    padding: 12px 20px;
    background-color: var(--light);
    cursor: pointer;
    font-weight: 500;
    border-radius: 8px 8px 0 0;
    transition: all 0.3s ease;
    box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border);
    border-bottom: none;
}

.tab:hover {
    background-color: #e2e8f0;
}

.tab.active {
    background-color: white;
    color: var(--secondary);
    border-bottom: 4px solid var(--secondary);
    margin-bottom: -4px;
    position: relative;
    font-weight: 600;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

table, th, td {
    border: 1px solid var(--border);
}

th, td {
    padding: 15px;
    text-align: left;
}

th {
    background-color: var(--light);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 5;
}

tr:nth-child(even) {
    background-color: #f8f9fa;
}

tr:hover {
    background-color: #f1f5f9;
}

.cluster-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 25px;
    background-color: white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.cluster-card:hover {
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.cluster-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.cluster-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 15px;
}

.stat {
    background-color: var(--light);
    padding: 8px 12px;
    border-radius: 6px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
}

.stat svg {
    width: 16px;
    height: 16px;
    color: var(--secondary);
}

.keywords-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border);
    padding: 15px;
    border-radius: 6px;
    background-color: var(--light);
    scrollbar-width: thin;
    scrollbar-color: var(--secondary) var(--light);
}

.keywords-list::-webkit-scrollbar {
    width: 8px;
}

.keywords-list::-webkit-scrollbar-track {
    background: var(--light);
    border-radius: 6px;
}

.keywords-list::-webkit-scrollbar-thumb {
    background-color: var(--secondary);
    border-radius: 6px;
}

.loading {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 200px;
    gap: 20px;
}

.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top: 4px solid var(--secondary);
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

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

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 12px;
    width: 80%;
    max-width: 700px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transform: translateY(-20px);
    opacity: 0;
    transition: all 0.3s ease;
}

.modal.active .modal-content {
    transform: translateY(0);
    opacity: 1;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close:hover {
    color: var(--dark);
}

/* Alert notifications */
.alert-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    max-width: 350px;
}

.alert {
    padding: 15px 20px;
    margin-bottom: 15px;
    border-radius: 6px;
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    animation: slideIn 0.3s ease forwards;
    transform: translateX(100%);
}

@keyframes slideIn {
    to { transform: translateX(0); }
}

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

.alert-error {
    background-color: var(--danger);
}

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

.alert-info {
    background-color: var(--secondary);
}

/* Visualization area */
.visualization-container {
    width: 100%;
    height: 500px;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
    margin: 20px 0;
}

/* Two-column layout for some sections */
.columns {
    display: flex;
    gap: 30px;
    margin: 20px 0;
}

.column {
    flex: 1;
}

@media (max-width: 768px) {
    .columns {
        flex-direction: column;
    }
}

/* Tooltip styling */
.tooltip {
    position: absolute;
    display: none;
    background-color: var(--dark);
    color: white;
    padding: 10px;
    border-radius: 4px;
    font-size: 14px;
    max-width: 300px;
    z-index: 1000;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Filter and settings area */
.filter-area {
    padding: 15px;
    background-color: var(--light);
    border-radius: 8px;
    margin-bottom: 20px;
}

.search-box {
    position: relative;
}

.search-box input {
    padding-left: 40px;
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 12px;
    color: var(--neutral);
}

/* Switch (toggle) styles */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--neutral);
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--secondary);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--secondary);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* Form grid layout */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

/* Feature badges */
.badge {
    display: inline-block;
    padding: 5px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 15px;
    margin: 2px;
    background-color: var(--light);
    color: var(--dark);
}

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

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

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

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

/* Dashboard summary cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.summary-card {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.summary-card .title {
    font-size: 16px;
    color: var(--neutral);
}

.summary-card .value {
    font-size: 28px;
    font-weight: 600;
    color: var(--primary);
}

.summary-card .trend {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

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

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

/* Settings toggle panel */
.settings-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--secondary);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 900;
    transition: all 0.3s ease;
}

.settings-toggle:hover {
    transform: rotate(30deg);
}

.settings-panel {
    position: fixed;
    bottom: 90px;
    right: 20px;
    background-color: white;
    border-radius: 12px;
    padding: 20px;
    width: 300px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    z-index: 890;
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.settings-panel.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

/* Theme selector */
.theme-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.theme-option {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.theme-option:hover {
    transform: scale(1.1);
}

.theme-option.active {
    border-color: var(--dark);
}

/* Help tips */
.help-tip {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--neutral);
    color: white;
    font-size: 12px;
    cursor: pointer;
    margin-left: 8px;
}

.help-tip:hover .tip-text {
    visibility: visible;
    opacity: 1;
}

.tip-text {
    visibility: hidden;
    width: 200px;
    background-color: var(--dark);
    color: white;
    text-align: center;
    border-radius: 6px;
    padding: 10px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 12px;
    font-weight: normal;
    line-height: 1.4;
    pointer-events: none;
}

.tip-text::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--dark) transparent transparent transparent;
}

/* Hierarquical visualization */
.hierarchical-view {
    width: 100%;
    height: 400px;
    background-color: var(--light);
    border-radius: 8px;
    overflow: hidden;
    margin: 20px 0;
}

/* Status indicators */
.status {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 5px;
}

.status-green {
    background-color: var(--success);
}

.status-yellow {
    background-color: var(--warning);
}

.status-red {
    background-color: var(--danger);
}

/* Heatmap styling */
.heatmap-container {
    width: 100%;
    height: 400px;
    background-color: white;
    border-radius: 8px;
    margin: 20px 0;
    overflow: hidden;
}