/* اضافه کردن فونت هما */
@font-face {
    font-family: 'Far.Homa';
    src: url('../far-homa-font/Far.Homa.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
  font-family: 'Far.Homa', tahoma, sans-serif;
}

/* تنظیم فونت هما برای همه عناصر مهم */
h1, h2, h3, h4, h5, h6, p, span, a, div, button, input, select, textarea, label, .card-title, .card-text, .lead, .display-4 {
  font-family: 'Far.Homa', tahoma, sans-serif !important;
}

:root {
  --primary-color: #3498db;
  --secondary-color: #2ecc71;
  --tertiary-color: #e74c3c;
  --light-bg: #f8f9fa;
  --dark-bg: #343a40;
  --data-science-color: #9b59b6;
  --machine-learning-color: #f39c12;
  --deep-learning-color: #1abc9c;
  --data-engineer-color: #34495e;
  --big-data-engineer-color: #e67e22;
}

/* Roadmap Card Styles */
.roadmap-card {
  transition: all 0.3s ease;
  border-radius: 0.5rem;
}

.roadmap-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Path Card Styles */
.path-card {
  transition: all 0.3s ease;
  overflow: hidden;
}

.path-card .card-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, rgba(52, 152, 219, 0.7) 100%);
  color: white;
  padding: 1rem;
}

.path-card:nth-child(2n) .card-header {
  background: linear-gradient(135deg, var(--secondary-color) 0%, rgba(46, 204, 113, 0.7) 100%);
}

.path-card:nth-child(3n) .card-header {
  background: linear-gradient(135deg, var(--tertiary-color) 0%, rgba(231, 76, 60, 0.7) 100%);
}

.path-card:nth-child(4n) .card-header {
  background: linear-gradient(135deg, #9b59b6 0%, rgba(155, 89, 182, 0.7) 100%);
}

.path-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* نمایش درختی مسیرها برای دسکتاپ */
.roadmap-tree-container {
  padding: 20px 10px;
  width: 100%;
  overflow-x: auto;
}

.roadmap-tree-root {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 900px;
}

.roadmap-tree-root-node {
  background: linear-gradient(45deg, #2b2d42 0%, #3a47d5 100%);
  color: white;
  padding: 15px 30px;
  border-radius: 50px;
  margin-bottom: 50px;
  position: relative;
  font-size: 1.5rem;
  font-weight: bold;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  z-index: 2;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.roadmap-tree-root-node::after {
  content: '';
  position: absolute;
  bottom: -30px;
  left: 50%;
  width: 3px;
  height: 30px;
  background-color: #3a47d5;
}

.roadmap-tree-branches {
  display: flex;
  justify-content: space-between;
  width: 100%;
  position: relative;
}

.roadmap-tree-branches::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 0;
  right: 0;
  height: 3px;
  background-color: #3a47d5;
}

.roadmap-tree-branch {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  margin: 0 10px;
  position: relative;
}

.roadmap-tree-branch::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 50%;
  width: 3px;
  height: 20px;
  background-color: #3a47d5;
}

.roadmap-tree-node {
  width: 100%;
  padding: 20px;
  border-radius: 10px;
  background: white;
  color: #2c3e50;
  text-align: center;
  margin-bottom: 20px;
  position: relative;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  z-index: 1;
}

.roadmap-tree-node::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  width: 3px;
  height: 10px;
  background-color: #3a47d5;
}

.roadmap-tree-node h3 {
  margin-bottom: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #212529;
}

.roadmap-tree-node p {
  font-size: 1rem;
  margin-bottom: 15px;
  line-height: 1.6;
  color: #2c3e50;
}

/* استایل شماره گام‌ها */
.step-badge {
  position: absolute;
  top: -15px;
  right: -15px;
  background: linear-gradient(45deg, #2b2d42 0%, #3a47d5 100%);
  color: white;
  border-radius: 50px;
  padding: 5px 10px;
  font-size: 0.9rem;
  font-weight: bold;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  border: 2px solid white;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.3);
}

.roadmap-tree-node.fundamentals {
  border-top: 6px solid #4361ee;
}

.roadmap-tree-node.data-science {
  border-top: 6px solid #7209b7;
}

.roadmap-tree-node.machine-learning {
  border-top: 6px solid #f9a826;
}

.roadmap-tree-node.deep-learning {
  border-top: 6px solid #4cc9f0;
}

.roadmap-tree-node.data-engineer {
  border-top: 6px solid #f72585;
}

.roadmap-tree-node.big-data-engineer {
  border-top: 6px solid #fb5607;
}

.roadmap-tree-items {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 12px;
}

.roadmap-tree-item {
  padding: 12px 18px;
  background: #f8f9fa;
  border-radius: 8px;
  position: relative;
  border-right: 3px solid #ddd;
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
  font-weight: 500;
  color: #212529;
}

.roadmap-tree-item:hover {
  transform: translateX(-5px);
  background-color: #fff;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.15);
  border-right-width: 5px;
}

.roadmap-tree-item.recommended {
  border-right-color: #ffc107;
  background-color: #fff8e6;
}

.roadmap-tree-item.recommended::before {
  content: '⭐';
  position: absolute;
  left: 5px;
  top: 50%;
  transform: translateY(-50%);
  color: #ffc107;
  text-shadow: 0 0 3px rgba(0, 0, 0, 0.2);
}

.roadmap-tree-item.more {
  background: #e9f2ff;
  text-align: center;
  border-right-color: #0d6efd;
  font-weight: 600;
  color: #0d6efd;
}

/* تایم‌لاین برای موبایل */
.mobile-roadmap-timeline {
  position: relative;
  padding: 30px 0;
  max-width: 500px;
  margin: 0 auto;
}

.mobile-roadmap-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  right: 20px;
  width: 3px;
  background: var(--primary-color);
  z-index: 0;
}

.timeline-start, .timeline-end {
  position: relative;
  padding: 20px 50px 20px 0;
  text-align: right;
}

.timeline-circle {
  position: absolute;
  right: 10px;
  top: 20px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-color);
  border: 3px solid white;
  box-shadow: 0 0 0 3px var(--primary-color);
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  font-size: 12px;
  font-weight: bold;
}

.timeline-end .timeline-circle {
  background: var(--secondary-color);
  box-shadow: 0 0 0 3px var(--secondary-color);
}

.timeline-start h3, .timeline-end h3 {
  margin: 0;
  font-size: 1.2rem;
}

.timeline-item {
  position: relative;
  margin-bottom: 30px;
  z-index: 1;
}

.timeline-marker {
  position: absolute;
  right: 0;
  top: 20px;
  width: 40px;
  z-index: 1;
}

.timeline-marker .timeline-circle {
  right: 10px;
  top: 0;
}

.timeline-marker.fundamentals .timeline-circle {
  background: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-marker.data-science .timeline-circle {
  background: var(--data-science-color);
  box-shadow: 0 0 0 3px var(--data-science-color);
}

.timeline-marker.machine-learning .timeline-circle {
  background: var(--machine-learning-color);
  box-shadow: 0 0 0 3px var(--machine-learning-color);
}

.timeline-marker.deep-learning .timeline-circle {
  background: var(--deep-learning-color);
  box-shadow: 0 0 0 3px var(--deep-learning-color);
}

.timeline-marker.data-engineer .timeline-circle {
  background: var(--data-engineer-color);
  box-shadow: 0 0 0 3px var(--data-engineer-color);
}

.timeline-marker.big-data-engineer .timeline-circle {
  background: var(--big-data-engineer-color);
  box-shadow: 0 0 0 3px var(--big-data-engineer-color);
}

.timeline-content {
  padding-right: 50px;
}

.timeline-content .card {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.timeline-content .card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.timeline-content .card-header {
  background: linear-gradient(135deg, var(--dark-bg) 0%, rgba(52, 58, 64, 0.8) 100%);
  color: white;
  position: relative;
}

.card-header .badge {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.timeline-content h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.timeline-content p {
  font-size: 0.9rem;
  color: #666;
}

.key-points {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid #eee;
}

.key-points h5 {
  font-size: 1rem;
  margin-bottom: 10px;
}

.key-points ul {
  padding-right: 20px;
  margin-bottom: 10px;
}

.key-points ul li {
  margin-bottom: 5px;
  font-size: 0.9rem;
}

/* استایل‌های چارت زمانی یادگیری - دسکتاپ */
.learning-timeline-chart {
  width: 100%;
  padding: 20px 0;
  position: relative;
}

.chart-header {
  display: flex;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid #ddd;
}

.chart-title {
  width: 150px;
  font-weight: bold;
  font-size: 1.1rem;
  color: #2c3e50;
}

.chart-scale {
  flex: 1;
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  color: #333;
}

.chart-row {
  display: flex;
  margin-bottom: 20px;
  padding: 15px;
  border-radius: 10px;
  transition: all 0.3s ease;
  position: relative;
  background-color: #f8f9fa;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
}

.chart-row:hover {
  background-color: #fff;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.chart-label {
  width: 150px;
  display: flex;
  align-items: center;
  font-weight: 600;
  font-size: 1.05rem;
  color: #2c3e50;
}

.chart-bar {
  flex: 1;
  display: flex;
  align-items: center;
  position: relative;
}

.chart-bar::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background-color: #ddd;
  z-index: 0;
}

.chart-bar .progress {
  height: 25px;
  position: relative;
  z-index: 1;
  overflow: visible;
  background-color: transparent;
}

.chart-bar .progress-bar {
  text-align: center;
  line-height: 25px;
  border-radius: 6px;
  font-weight: bold;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.progress-badge {
  position: absolute;
  top: -15px;
  background-color: #212529;
  color: white;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  z-index: 2;
  border: 2px solid white;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.progress-badge.start {
  right: 0;
  background-color: #0d6efd;
}

.progress-badge.end {
  left: 0;
  background-color: #198754;
}

.progress-timeline {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(to right, #0d6efd, #6f42c1, #fd7e14, #20c997);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.progress-timeline .progress-bar {
  opacity: 0;
}

.chart-summary {
  padding: 10px;
  border-top: 1px solid #ddd;
  padding-top: 20px;
}

/* استایل‌های چارت موبایل */
.mobile-learning-chart {
  padding: 10px;
}

.mobile-chart-badge {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.mobile-learning-chart .progress {
  height: 10px;
  margin-bottom: 10px;
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1) inset;
}

.mobile-learning-chart .progress-bar {
  border-radius: 10px;
}

.timeline-connector {
  height: 40px;
  border-right: 2px dashed #0d6efd;
  margin-right: 15px;
  margin-bottom: 10px;
}

.bg-gradient-dark {
  background: linear-gradient(45deg, #343a40, #495057);
}

.bg-purple {
  background-color: var(--data-science-color);
  color: white;
}

.bg-orange {
  background-color: var(--big-data-engineer-color);
  color: white;
}

/* نمایش انیمیشن برای چارت */
.chart-row.animate__animated,
.mobile-learning-chart .animate__animated {
  animation-duration: 0.8s;
}

@keyframes progress-pulse {
  0% { opacity: 1; }
  50% { opacity: 0.7; }
  100% { opacity: 1; }
}

.progress-bar-animated {
  animation: progress-pulse 2s infinite !important;
}

/* Roadmap Container */
.roadmap-container {
  position: relative;
  padding: 20px 0;
}

.roadmap-container::before {
  content: '';
  position: absolute;
  right: 20px;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--primary-color);
  z-index: 0;
}

/* Roadmap Item Styles */
.roadmap-item {
  position: relative;
  margin-bottom: 30px;
  padding: 20px 40px 20px 20px;
  background-color: var(--light-bg);
  border-radius: 0.5rem;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.roadmap-item::before {
  content: '';
  position: absolute;
  right: -20px;
  top: 25px;
  width: 40px;
  height: 3px;
  background-color: var(--primary-color);
}

.roadmap-item::after {
  content: '';
  position: absolute;
  right: 20px;
  top: 25px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background-color: var(--primary-color);
  transform: translateX(50%);
  z-index: 1;
}

.roadmap-item.required::after {
  background-color: var(--tertiary-color);
}

.roadmap-item.recommended::after {
  background-color: var(--secondary-color);
}

.roadmap-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.roadmap-item-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.roadmap-item-description {
  color: #666;
  margin-bottom: 15px;
}

/* Roadmap Children */
.roadmap-item-children {
  margin-top: 20px;
  border-right: 2px dashed #ccc;
  padding-right: 20px;
}

.roadmap-child-item {
  position: relative;
  margin-bottom: 15px;
  padding: 15px;
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 0.5rem;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.roadmap-child-item::before {
  content: '';
  position: absolute;
  right: -22px;
  top: 50%;
  width: 20px;
  height: 2px;
  background-color: #ccc;
}

.roadmap-child-title {
  margin: 0 0 10px 0;
  font-size: 1.1rem;
  font-weight: 500;
}

.roadmap-child-description {
  color: #777;
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .roadmap-container::before {
    right: 10px;
  }
  
  .roadmap-item {
    padding-right: 30px;
  }
  
  .roadmap-item::before {
    right: -10px;
    width: 20px;
  }
  
  .roadmap-item::after {
    right: 10px;
  }
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* گرادینت‌های متنی */
.text-gradient {
  background: linear-gradient(90deg, #3a47d5 0%, #00aeff 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  display: inline-block;
  text-shadow: 0px 0px 1px rgba(0,0,0,0.1);
}

.text-gradient-dark {
  background: linear-gradient(90deg, #2c3e50 0%, #4a69bd 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  display: inline-block;
  text-shadow: 0px 0px 1px rgba(0,0,0,0.1);
}

/* گرادینت‌های پس‌زمینه */
.bg-gradient-primary {
  background: linear-gradient(45deg, #3a47d5 0%, #00aeff 100%);
}

.bg-gradient-dark {
  background: linear-gradient(45deg, #1e272e 0%, #485460 100%);
}

.bg-gradient-info {
  background: linear-gradient(45deg, #0097e6 0%, #00d2d3 100%);
}

.bg-gradient-success {
  background: linear-gradient(45deg, #20bf6b 0%, #0fb9b1 100%);
}

/* استایل‌های تصویر پروفایل */
.profile-image-container {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto;
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 4px solid #fff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 2;
}

.profile-glow {
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  background: linear-gradient(45deg, #3a47d5 0%, #00aeff 100%);
  border-radius: 50%;
  filter: blur(15px);
  opacity: 0.6;
  z-index: 1;
  animation: pulse 3s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.7;
  }
  100% {
    transform: scale(0.95);
    opacity: 0.5;
  }
}

/* استایل‌های نقشه راه درختی */
.roadmap-tree-container {
  padding: 2rem 0;
  margin-bottom: 3rem;
}

.roadmap-tree-root {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.roadmap-tree-root-node {
  background: linear-gradient(45deg, #3a47d5 0%, #00aeff 100%);
  color: white;
  padding: 1.5rem 3rem;
  border-radius: 1rem;
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 2.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  transform: scale(1);
  transition: transform 0.3s ease;
}

.roadmap-tree-root-node:hover {
  transform: scale(1.05);
}

.roadmap-tree-branches {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  width: 100%;
}

.roadmap-tree-branch {
  flex: 1 1 400px;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  margin-bottom: 2rem;
}

.roadmap-tree-node {
  position: relative;
  padding: 1.5rem;
  border-radius: 1rem;
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
  background-color: #fff;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  transform: translateY(0);
}

.roadmap-tree-node:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.roadmap-tree-node h3 {
  margin-bottom: 1rem;
  color: #2c3e50;
  font-weight: bold;
  font-size: 1.25rem;
}

.roadmap-tree-node p {
  margin-bottom: 1.5rem;
  color: #2d3436;
  font-size: 1.05rem;
  line-height: 1.6;
}

.roadmap-tree-node.fundamentals {
  border-top: 5px solid #4361ee;
}

.roadmap-tree-node.data-science {
  border-top: 5px solid #7209b7;
}

.roadmap-tree-node.machine-learning {
  border-top: 5px solid #f9a826;
}

.roadmap-tree-node.deep-learning {
  border-top: 5px solid #4cc9f0;
}

.roadmap-tree-node.data-engineer {
  border-top: 5px solid #f72585;
}

.roadmap-tree-node.big-data-engineer {
  border-top: 5px solid #fb5607;
}

.step-badge {
  position: absolute;
  top: -15px;
  right: 20px;
  background: linear-gradient(45deg, #3a47d5 0%, #00aeff 100%);
  color: white;
  padding: 0.4rem 1.2rem;
  border-radius: 100px;
  font-weight: bold;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.roadmap-tree-items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.roadmap-tree-item {
  background-color: #f8f9fa;
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
  font-size: 1rem;
  color: #2c3e50;
  font-weight: 500;
}

.roadmap-tree-item:hover {
  background-color: #e9ecef;
  transform: translateX(5px);
}

.roadmap-tree-item.recommended {
  background-color: #fff3cd;
  border-right: 3px solid #ffc107;
}

.roadmap-tree-item.more {
  background-color: #cfe2ff;
  color: #0d6efd;
  font-weight: 600;
}

/* رنگ‌های جدید برای نمودار */
.bg-primary {
  background-color: #4361ee !important;
}

.bg-purple {
  background-color: #7209b7 !important;
}

.bg-warning {
  background-color: #f9a826 !important;
}

.bg-info {
  background-color: #4cc9f0 !important;
}

.bg-dark {
  background-color: #2b2d42 !important;
}

.bg-orange {
  background-color: #fb5607 !important;
}

/* کلاس‌های متنی رنگی */
.text-primary {
  color: #4361ee !important;
}

.text-purple {
  color: #7209b7 !important;
}

.text-warning {
  color: #f9a826 !important;
}

.text-info {
  color: #4cc9f0 !important;
}

.text-orange {
  color: #fb5607 !important;
}

/* استایل‌های دکمه‌های بخش‌ها */
.section-btn {
  transition: all 0.3s ease;
  border: none;
  padding: 12px 30px;
  font-size: 1.05rem;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15) !important;
}

.section-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2) !important;
}

.section-btn.fundamentals {
  background-color: #4361ee;
  color: white;
}

.section-btn.data-science {
  background-color: #7209b7;
  color: white;
}

.section-btn.machine-learning {
  background-color: #f9a826;
  color: white;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
}

.section-btn.deep-learning {
  background-color: #4cc9f0;
  color: white;
}

.section-btn.data-engineer {
  background-color: #f72585;
  color: white;
}

.section-btn.big-data-engineer {
  background-color: #fb5607;
  color: white;
}

.section-btn.fundamentals:hover {
  background-color: #3653e9;
}

.section-btn.data-science:hover {
  background-color: #6008a5;
}

.section-btn.machine-learning:hover {
  background-color: #f59000;
}

.section-btn.deep-learning:hover {
  background-color: #23b8e3;
}

.section-btn.data-engineer:hover {
  background-color: #e81577;
}

.section-btn.big-data-engineer:hover {
  background-color: #ea4c00;
}