/* ========================================
   Variables and Reset
   ======================================== */

:root {
    --primary-color: #4a90e2;
    --secondary-color: #50c878;
    --cli-color: #2ecc71;
    --gui-color: #e74c3c;
    --tui-color: #9b59b6;
    --dark-bg: #1a1a2e;
    --darker-bg: #16213e;
    --light-bg: #f5f7fa;
    --white: #ffffff;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --border-color: #e0e6ed;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

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

html {
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

/* ========================================
   Container and Layout
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
    background: var(--dark-bg);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-brand i {
    color: var(--cli-color);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--white);
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    color: var(--white);
    padding: 4rem 0;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    animation: fadeInDown 1s;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    display: inline-block;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.hero-animation {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 20px;
}

.terminal-window,
.gui-window {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    width: 200px;
}

.terminal-header,
.gui-header {
    background: rgba(0, 0, 0, 0.3);
    padding: 10px;
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 0.9rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background: #ff5f56;
}

.dot.yellow {
    background: #ffbd2e;
}

.dot.green {
    background: #27c93f;
}

.terminal-body {
    padding: 15px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.terminal-line {
    color: var(--cli-color);
}

.typing {
    animation: typing 3s steps(10) infinite;
}

.gui-body {
    padding: 15px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.gui-icon {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-size: 1.5rem;
}

/* ========================================
   Page Header
   ======================================== */

.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* ========================================
   Sections
   ======================================== */

.section {
    padding: 4rem 0;
}

.section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 15px;
}

.section h2 i {
    color: var(--primary-color);
}

/* ========================================
   Content Boxes
   ======================================== */

.content-box {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.content-box h3 {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.content-box.highlight {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.1) 0%, rgba(80, 200, 120, 0.1) 100%);
    border: 2px solid var(--primary-color);
}

/* ========================================
   Timeline
   ======================================== */

.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    flex: 1;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    padding: 1rem;
}

.timeline-content {
    flex: 1;
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.timeline-content h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

/* ========================================
   Grid Layouts
   ======================================== */

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

/* ========================================
   Cards
   ======================================== */

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

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

.card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.card h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

/* ========================================
   Comparison Grid
   ======================================== */

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.comparison-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.comparison-header {
    padding: 1.5rem;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 15px;
}

.comparison-card.cli .comparison-header {
    background: linear-gradient(135deg, var(--cli-color) 0%, #27ae60 100%);
}

.comparison-card.gui .comparison-header {
    background: linear-gradient(135deg, var(--gui-color) 0%, #c0392b 100%);
}

.comparison-header i {
    font-size: 2rem;
}

.features-list {
    padding: 1.5rem;
}

.features-list li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.features-list i {
    color: var(--secondary-color);
}

.comparison-example {
    background: var(--light-bg);
    padding: 1.5rem;
    border-top: 2px solid var(--border-color);
}

.comparison-example code {
    background: var(--dark-bg);
    color: var(--cli-color);
    padding: 1rem;
    display: block;
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    margin-top: 0.5rem;
}

/* ========================================
   Components Grid
   ======================================== */

.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.component-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.component-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.component-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.component-item p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ========================================
   Analysis Table
   ======================================== */

.analysis-table-wrapper {
    overflow-x: auto;
    margin: 2rem 0;
}

.analysis-table {
    width: 100%;
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border-collapse: collapse;
}

.analysis-table thead {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    color: var(--white);
}

.analysis-table th,
.analysis-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.analysis-table th {
    font-weight: 600;
}

.analysis-table tbody tr:hover {
    background: var(--light-bg);
}

.analysis-table tbody tr:last-child td {
    border-bottom: none;
}

/* ========================================
   AI Features
   ======================================== */

.ai-feature {
    text-align: center;
    padding: 1.5rem;
}

.ai-feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.ai-feature h4 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

/* ========================================
   Architecture
   ======================================== */

.architecture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.architecture-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.architecture-card h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.architecture-diagram {
    margin: 2rem 0;
}

.kernel-layer {
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    font-weight: bold;
    margin-bottom: 10px;
}

.monolithic {
    background: linear-gradient(135deg, var(--cli-color) 0%, #27ae60 100%);
    color: var(--white);
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.micro-top {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.7) 0%, rgba(155, 89, 182, 0.7) 100%);
    color: var(--white);
}

.micro-bottom {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--tui-color) 100%);
    color: var(--white);
}

.arch-details ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.arch-details ul li {
    list-style: disc;
    margin: 0.5rem 0;
}

/* ========================================
   Interface Cards
   ======================================== */

.interface-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.interface-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.interface-icon {
    padding: 2rem;
    color: var(--white);
    text-align: center;
    font-size: 3rem;
}

.cli-color {
    background: linear-gradient(135deg, var(--cli-color) 0%, #27ae60 100%);
}

.gui-color {
    background: linear-gradient(135deg, var(--gui-color) 0%, #c0392b 100%);
}

.tui-color {
    background: linear-gradient(135deg, var(--tui-color) 0%, #8e44ad 100%);
}

.interface-card h3 {
    padding: 1rem 1.5rem 0;
    color: var(--text-dark);
}

.interface-desc {
    padding: 0 1.5rem;
    color: var(--text-light);
    margin: 1rem 0;
}

.interface-pros-cons {
    padding: 0 1.5rem;
}

.pros,
.cons {
    margin-bottom: 1rem;
}

.pros h4 {
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.5rem;
}

.cons h4 {
    color: var(--gui-color);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.5rem;
}

.pros ul,
.cons ul {
    padding-left: 1.5rem;
}

.pros ul li,
.cons ul li {
    list-style: disc;
    margin: 0.3rem 0;
}

.interface-examples {
    padding: 1rem 1.5rem;
    background: var(--light-bg);
    border-top: 2px solid var(--border-color);
}

.interface-examples h4 {
    margin-bottom: 0.5rem;
}

.tag {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin: 0.3rem;
}

/* ========================================
   Business Cards
   ======================================== */

.business-applications {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.business-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.business-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.business-card h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.cost-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-top: 1rem;
    font-weight: bold;
}

.cost-tag.low {
    background: rgba(46, 204, 113, 0.2);
    color: var(--cli-color);
}

.cost-tag.medium {
    background: rgba(241, 196, 15, 0.2);
    color: #f39c12;
}

.cost-tag.high {
    background: rgba(231, 76, 60, 0.2);
    color: var(--gui-color);
}

/* ========================================
   Economic Comparison
   ======================================== */

.economic-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.economic-item {
    padding: 1.5rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.economic-item h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.economic-item h4 i {
    color: var(--primary-color);
}

.economic-item p {
    margin: 0.5rem 0;
}

/* ========================================
   Conclusion
   ======================================== */

.conclusion-box {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.conclusion-box h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.conclusion-list {
    padding-left: 1.5rem;
}

.conclusion-list li {
    list-style: disc;
    margin: 1rem 0;
}

/* ========================================
   Recommendations
   ======================================== */

.recommendations {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.recommendation-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.recommendation-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.recommendation-card h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

/* ========================================
   Investment Items
   ======================================== */

.investment-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.investment-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.investment-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

/* ========================================
   Future Trends
   ======================================== */

.future-trends {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-top: 2rem;
}

.future-trends h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.trend-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.trend-item {
    text-align: center;
}

.trend-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--tui-color) 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.trend-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

/* ========================================
   References
   ======================================== */

.references-list h3 {
    color: var(--text-dark);
    margin: 2rem 0 1rem;
    font-size: 1.3rem;
}

.bibliography {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.bibliography li {
    list-style: disc;
    margin-left: 2rem;
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

.web-resources li {
    list-style: none;
    margin-left: 0;
}

.web-resources a {
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.5rem 0;
    transition: var(--transition);
}

.web-resources a:hover {
    color: var(--secondary-color);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-section ul li {
    margin: 0.5rem 0;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* ========================================
   Charts Page
   ======================================== */

.charts-page {
    padding: 2rem 0;
}

.chart-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 3rem;
}

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

.chart-header h2 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.chart-header p {
    color: var(--text-light);
}

.chart-container {
    position: relative;
    height: 400px;
    margin: 2rem 0;
}

.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.chart-grid .chart-container {
    height: 300px;
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 3px;
}

.cli-gradient {
    background: linear-gradient(135deg, var(--cli-color) 0%, #27ae60 100%);
}

.gui-gradient {
    background: linear-gradient(135deg, var(--gui-color) 0%, #c0392b 100%);
}

.tui-gradient {
    background: linear-gradient(135deg, var(--tui-color) 0%, #8e44ad 100%);
}

.stats-summary {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.1) 0%, rgba(80, 200, 120, 0.1) 100%);
    padding: 3rem 2rem;
    border-radius: 10px;
    margin: 3rem 0;
}

.stats-summary h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.insights-section {
    padding: 3rem 0;
}

.insights-section h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.insight-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.insight-card i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.insight-card h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.recommendations-section {
    padding: 3rem 0;
}

.recommendations-section h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.recommendation-boxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.recommendation-box {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.recommendation-header {
    padding: 1.5rem;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--tui-color) 100%);
    display: flex;
    align-items: center;
    gap: 15px;
}

.recommendation-header i {
    font-size: 2rem;
}

.recommendation-box p,
.recommendation-box ul {
    padding: 0 1.5rem;
    margin: 1rem 0;
}

.recommendation-box ul li {
    list-style: disc;
    margin-left: 1.5rem;
    margin-bottom: 0.5rem;
}

.recommendation-box p:last-child {
    padding-bottom: 1.5rem;
}

/* ========================================
   Contacts Page
   ======================================== */

.contacts-page {
    padding: 2rem 0;
}

.contact-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.contact-form-section,
.contact-info-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-form-section h2,
.contact-info-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.8rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.radio-label input[type="radio"],
.checkbox-label input[type="checkbox"] {
    width: auto;
}

.error-message {
    color: var(--gui-color);
    font-size: 0.85rem;
    margin-top: 0.3rem;
    display: none;
}

.btn-submit {
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-submit:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.success-message {
    background: rgba(46, 204, 113, 0.1);
    border: 2px solid var(--cli-color);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.success-message i {
    font-size: 3rem;
    color: var(--cli-color);
    margin-bottom: 1rem;
}

.success-message h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-card {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--tui-color) 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-details h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-light);
    line-height: 1.6;
}

.social-links {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.social-links h3 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 50px;
    height: 50px;
    background: var(--light-bg);
    color: var(--text-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: var(--transition);
}

.social-icon:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.quick-tips {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.quick-tips h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.quick-tips ul li {
    list-style: disc;
    margin-left: 1.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.quick-tips a {
    color: var(--primary-color);
}

.map-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 3rem;
}

.map-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.map-container {
    border-radius: 10px;
    overflow: hidden;
}

.map-info {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 5px;
}

.faq-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 3rem;
}

.faq-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    background: var(--light-bg);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(74, 144, 226, 0.1);
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-question h3 {
    color: var(--text-dark);
    font-size: 1.1rem;
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 500px;
}

.alternative-contact {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.alternative-contact h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.method-card {
    text-align: center;
    padding: 2rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    transition: var(--transition);
}

.method-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.method-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.method-card h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.method-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.btn-link {
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.btn-link:hover {
    color: var(--secondary-color);
}

/* ========================================
   Author Page
   ======================================== */

.author-page {
    padding: 2rem 0;
}

.author-profile {
    margin-bottom: 3rem;
}

.profile-card {
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    padding: 3rem;
    display: flex;
    gap: 3rem;
    align-items: center;
}

.profile-image {
    position: relative;
    flex-shrink: 0;
}

.profile-image img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 5px solid var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.profile-badge {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 50px;
    height: 50px;
    background: var(--cli-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: 3px solid var(--white);
}

.profile-info h2 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 2rem;
}

.profile-title,
.profile-location {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.profile-stats {
    display: flex;
    gap: 3rem;
    margin: 2rem 0;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    display: block;
    color: var(--text-light);
    font-size: 0.9rem;
}

.profile-social {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-btn {
    padding: 0.8rem 1.5rem;
    background: var(--light-bg);
    color: var(--text-dark);
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.social-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.about-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 3rem;
}

.about-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.about-content p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.author-quote {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.1) 0%, rgba(80, 200, 120, 0.1) 100%);
    padding: 2rem;
    border-left: 5px solid var(--primary-color);
    border-radius: 5px;
    margin: 2rem 0;
    position: relative;
}

.author-quote i {
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.3;
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.author-quote p {
    font-style: italic;
    font-size: 1.1rem;
    margin: 0 0 1rem 0;
    padding-left: 2rem;
}

.author-quote footer {
    text-align: right;
    color: var(--text-light);
    font-weight: 600;
}

.skills-section {
    margin-bottom: 3rem;
}

.skills-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skill-name {
    color: var(--text-dark);
    font-size: 0.95rem;
}

.skill-bar {
    height: 8px;
    background: var(--light-bg);
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 10px;
    transition: width 1s ease;
}

.certifications-section {
    margin-bottom: 3rem;
}

.certifications-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.cert-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.cert-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.cert-card h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.cert-issuer {
    color: var(--text-light);
    font-size: 0.9rem;
}

.cert-date {
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 0.5rem;
}

.projects-section {
    margin-bottom: 3rem;
}

.projects-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.project-image {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 3rem;
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tags {
    margin: 1rem 0;
}

.project-link {
    color: var(--primary-color);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.project-link:hover {
    color: var(--secondary-color);
    gap: 12px;
}

.publications-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 3rem;
}

.publications-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.publications-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.publication-item {
    display: flex;
    gap: 1.5rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.publication-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.pub-icon {
    width: 60px;
    height: 60px;
    background: var(--light-bg);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.pub-content h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.pub-meta {
    display: flex;
    gap: 2rem;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.pub-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.teaching-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 3rem;
}

.teaching-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.teaching-content > p {
    margin-bottom: 2rem;
    line-height: 1.8;
}

.teaching-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.teaching-card {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.teaching-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.teaching-card h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.teaching-card p {
    color: var(--text-light);
}

.teaching-stats {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.1) 0%, rgba(80, 200, 120, 0.1) 100%);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.teaching-stats p {
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.contact-author-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--tui-color) 100%);
    color: var(--white);
    padding: 3rem 2rem;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 3rem;
}

.contact-author-section h2 {
    color: var(--white);
    margin-bottom: 1rem;
    justify-content: center;
}

.contact-author-content p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-options {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-option {
    background: var(--white);
    color: var(--text-dark);
    padding: 1rem 2rem;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.contact-option:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.contact-option i {
    color: var(--primary-color);
}

.resources-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.resources-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.resource-category h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.resource-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.resource-list li a {
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.5rem 0;
    transition: var(--transition);
}

.resource-list li a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes typing {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

/* ========================================
   Dark Mode
   ======================================== */

body.dark-mode {
    background-color: #121212;
    color: #e0e0e0;
}

body.dark-mode .content-box,
body.dark-mode .card,
body.dark-mode .comparison-card,
body.dark-mode .architecture-card,
body.dark-mode .interface-card,
body.dark-mode .business-card,
body.dark-mode .conclusion-box,
body.dark-mode .recommendation-card,
body.dark-mode .chart-section,
body.dark-mode .stat-card,
body.dark-mode .insight-card,
body.dark-mode .recommendation-box,
body.dark-mode .contact-form-section,
body.dark-mode .contact-info-section,
body.dark-mode .map-section,
body.dark-mode .faq-section,
body.dark-mode .alternative-contact,
body.dark-mode .about-section,
body.dark-mode .skill-category,
body.dark-mode .cert-card,
body.dark-mode .project-card,
body.dark-mode .publications-section,
body.dark-mode .teaching-section,
body.dark-mode .resources-section,
body.dark-mode .future-trends,
body.dark-mode .analysis-table,
body.dark-mode .component-item,
body.dark-mode .economic-item,
body.dark-mode .investment-item,
body.dark-mode .method-card,
body.dark-mode .bibliography {
    background-color: #1e1e1e;
    color: #e0e0e0;
}

body.dark-mode .content-box h3,
body.dark-mode .card h4,
body.dark-mode .section h2,
body.dark-mode .interface-card h3,
body.dark-mode .business-card h4,
body.dark-mode .recommendation-card h4,
body.dark-mode .conclusion-box h3,
body.dark-mode .chart-header h2,
body.dark-mode .stat-value,
body.dark-mode .insight-card h3,
body.dark-mode .about-section h2,
body.dark-mode .skills-section h2,
body.dark-mode .certifications-section h2,
body.dark-mode .projects-section h2,
body.dark-mode .contact-info-section h2,
body.dark-mode .contact-form-section h2,
body.dark-mode .map-section h2,
body.dark-mode .faq-section h2,
body.dark-mode .faq-question h3,
body.dark-mode .contact-details h3,
body.dark-mode .skill-name,
body.dark-mode .profile-info h2,
body.dark-mode .economic-item h4,
body.dark-mode .component-item h4,
body.dark-mode .form-group label {
    color: #f0f0f0;
}

body.dark-mode .analysis-table thead {
    background: #0d0d1a;
}

body.dark-mode .analysis-table tbody tr:hover {
    background: #2a2a2a;
}

body.dark-mode .form-group input,
body.dark-mode .form-group select,
body.dark-mode .form-group textarea {
    background-color: #2a2a2a;
    border-color: #444;
    color: #e0e0e0;
}

body.dark-mode .faq-question {
    background: #2a2a2a;
}

body.dark-mode .interface-examples,
body.dark-mode .comparison-example {
    background: #2a2a2a;
}

body.dark-mode .light-bg,
body.dark-mode .map-info,
body.dark-mode .teaching-card {
    background: #2a2a2a;
}

body.dark-mode .skill-bar {
    background: #333;
}

body.dark-mode .social-icon {
    background: #2a2a2a;
    color: #e0e0e0;
}

body.dark-mode .profile-card {
    background: #1e1e1e;
}

body.dark-mode .social-btn {
    background: #2a2a2a;
    color: #e0e0e0;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-bg);
        flex-direction: column;
        padding: 1rem 0;
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }

    .hero {
        min-height: 400px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-animation {
        display: none;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        flex-direction: column !important;
    }

    .timeline-year {
        text-align: left;
    }

    .comparison-grid,
    .architecture-grid,
    .interface-cards {
        grid-template-columns: 1fr;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .chart-grid {
        grid-template-columns: 1fr;
    }

    .chart-container {
        height: 300px;
    }

    .profile-card {
        flex-direction: column;
        text-align: center;
    }

    .profile-stats {
        justify-content: center;
    }

    .contact-options {
        flex-direction: column;
        align-items: center;
    }

    .analysis-table-wrapper {
        overflow-x: auto;
    }

    .analysis-table {
        font-size: 0.85rem;
    }

    .analysis-table th,
    .analysis-table td {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .section {
        padding: 2rem 0;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .section h2 {
        font-size: 1.5rem;
    }

    .content-box {
        padding: 1.5rem;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 1.5rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .profile-image img {
        width: 150px;
        height: 150px;
    }

    .profile-badge {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}