@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
  --primary-color: #4361ee;
  --primary-color-rgb: 67, 97, 238;
  --secondary-color: #3f37c9;
  --accent-color: #4cc9f0;
  --text-color: #2b2d42;
  --light-text-color: #8d99ae;
  --background-color: #f8f9fa;
  --card-bg-color: #ffffff;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --gradient-start: #4361ee;
  --gradient-end: #4cc9f0;
  --transition-speed: 0.3s;
}

/* Mode sombre */
[data-theme="dark"] {
  --primary-color: #4cc9f0;
  --primary-color-rgb: 76, 201, 240;
  --secondary-color: #4895ef;
  --accent-color: #4361ee;
  --text-color: #e9ecef;
  --light-text-color: #adb5bd;
  --background-color: #121212;
  --card-bg-color: #1e1e1e;
  --shadow-color: rgba(0, 0, 0, 0.3);
  --gradient-start: #4cc9f0;
  --gradient-end: #4361ee;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

html {
  scroll-behavior: smooth;
}

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

/* Layout & Common Elements */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section:not(.hero) {
  margin: 6rem 0;
  padding: 2rem;
  border-radius: 10px;
  background-color: var(--card-bg-color);
  box-shadow: 0 10px 15px var(--shadow-color);
  transition: transform var(--transition-speed);
}

section:not(.hero):hover {
  transform: translateY(-5px);
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
  color: var(--primary-color);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 50px;
  height: 4px;
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  border-radius: 2px;
}

/* Hero Wrapper and Header */
.hero-wrapper {
  width: 100%;
  position: relative;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  margin-bottom: 6rem;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
}

/* Header & Navigation */
header {
  width: 100%;
  background-color: transparent;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1000;
  padding: 1.5rem 0;
}

.nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  padding: 0.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav_link {
  color: white;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  position: relative;
  padding: 0.5rem 0;
  transition: all var(--transition-speed);
}

.nav_link:hover {
  color: rgba(255, 255, 255, 0.8);
  transform: translateY(-3px);
}

.nav_link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: white;
  transition: width var(--transition-speed);
}

.nav_link:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  width: 100%;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-align: center;
  padding: 6rem 2rem 2rem;
  margin: 0;
  flex: 1;
}

.hero-content {
  max-width: 800px;
  padding: 2rem;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  letter-spacing: 1px;
  animation: fadeInDown 1s ease-out;
  white-space: nowrap;
}

.hero-subtitle {
  font-size: 1.5rem;
  opacity: 0.9;
  animation: fadeInUp 1s ease-out;
}

/* About Me Section */
.infos {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: center;
}

.infos_image {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 10px 15px var(--shadow-color);
  transition: transform var(--transition-speed);
  object-fit: cover;
}

.infos_image:hover {
  transform: scale(1.02);
}

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

.infos_droit_title {
  font-size: 2rem;
  color: var(--primary-color);
  position: relative;
  display: inline-block;
}

.infos_droit_title::after {
  content: '';
  position: absolute;
  width: 50px;
  height: 3px;
  bottom: -10px;
  left: 0;
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  border-radius: 2px;
}

.infos_text {
  line-height: 1.8;
  color: var(--text-color);
}

.buttons-container {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  justify-content: center;
}

.btn {
  padding: 0.8rem 1.5rem;
  border-radius: 30px;
  border: none;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  transition: all var(--transition-speed);
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(67, 97, 238, 0.3);
}

/* Skills Section */
.competence {
  width: 100%;
}

.skills-categories {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.skills-category {
  background-color: var(--card-bg-color);
  border-radius: 10px;
  padding: 2rem;
  box-shadow: 0 5px 15px var(--shadow-color);
  transition: transform var(--transition-speed);
}

.skills-category:hover {
  transform: translateY(-5px);
}

.skills-category h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.skills-category h3 i {
  font-size: 1.8rem;
}

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

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

.skill-group h4 {
  color: var(--primary-color);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--background-color);
}

.skills-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.skills-list li {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.skills-list li i {
  color: var(--primary-color);
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

.languages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.language {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.language i {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-top: 0.3rem;
}

.language h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.language p {
  color: var(--text-color);
  line-height: 1.5;
}

/* Future Projects Section */
.avenir-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.avenir-text {
  line-height: 1.8;
}

.timeline {
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  height: 100%;
  width: 3px;
  background: var(--accent-color);
  left: 20px;
  border-radius: 2px;
}

.timeline-item {
  padding-left: 60px;
  position: relative;
  margin-bottom: 2rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--accent-color);
  left: 11px;
  top: 50%;
}

.timeline-content {
  background-color: var(--background-color);
  padding: 1.5rem;
  border-radius: 10px;
  transition: all var(--transition-speed);
}

.timeline-content:hover {
  transform: translateX(5px);
  box-shadow: 0 5px 15px var(--shadow-color);
}

.timeline-content h3 {
  color: var(--primary-color);
  margin-bottom: 0.8rem;
  font-size: 1.3rem;
  font-weight: 600;
}

.timeline-content p {
  margin-bottom: 0.5rem;
}

.timeline-content strong {
  color: var(--text-color);
  font-weight: 600;
}

.timeline-content em {
  color: var(--light-text-color);
  font-style: italic;
  font-size: 0.95rem;
}

.timeline-details {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-color);
  margin-top: 0.5rem;
}

.timeline-details br {
  margin-bottom: 0.2rem;
}

/* Add bullet point styling */
.timeline-details:last-child {
  margin-top: 0.8rem;
}

.timeline-details:last-child br {
  margin-bottom: 0.4rem;
}

/* Footer */
footer {
  background-color: var(--card-bg-color);
  padding: 2rem 0;
  box-shadow: 0 -5px 15px var(--shadow-color);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.social-links a {
  color: var(--primary-color);
  font-size: 1.5rem;
  transition: transform var(--transition-speed);
}

.social-links a:hover {
  transform: translateY(-5px);
}

/* Animations */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Project Page Styles */
.hero-wrapper.projects-hero {
  background: linear-gradient(135deg, #4a90e2, #2c3e50);
}

.projects-intro {
  max-width: 1200px;
  margin: 0 auto 4rem;
  padding: 2rem;
  background-color: var(--card-bg-color);
  border-radius: 10px;
  box-shadow: 0 10px 15px var(--shadow-color);
}

.projects-intro-text {
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 800px;
}

.project-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.filter-btn {
  padding: 0.6rem 1.2rem;
  background-color: var(--background-color);
  border: none;
  border-radius: 30px;
  color: var(--text-color);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.filter-btn:hover {
  background-color: rgba(67, 97, 238, 0.1);
  transform: translateY(-3px);
}

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

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.project-card {
  background: var(--card-bg-color);
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px var(--shadow-color);
  transition: transform 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px var(--shadow-color);
}

.project-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.project-header i {
  font-size: 2rem;
  color: var(--primary-color);
}

.project-header h3 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--primary-color);
}

.project-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.tag {
  background-color: rgba(67, 97, 238, 0.1);
  color: var(--primary-color);
  padding: 0.2rem 0.8rem;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 500;
}

.project-features {
  list-style: none;
  margin: 0.5rem 0 1.5rem;
  padding-left: 0.5rem;
}

.project-features li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.project-features li:before {
  content: "•";
  color: var(--primary-color);
  font-weight: bold;
  position: absolute;
  left: 0;
}

.project-actions {
  margin-top: auto;
  padding-top: 1rem;
}

.project-actions .btn {
  width: 100%;
  text-align: center;
  justify-content: center;
}

/* Responsive adjustments for projects page */
@media (max-width: 768px) {
  .project-filter {
    justify-content: center;
  }

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

@media (max-width: 576px) {
  .filter-btn {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
  }
}

/* Company page styles */
.company-hero {
  background: linear-gradient(135deg, #4cc9f0, #4361ee);
}

.company-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
}

.company-image-container {
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 10px 15px var(--shadow-color);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: white;
  padding: 2rem;
}

.company-image {
  max-width: 100%;
  height: auto;
  transition: transform 0.5s;
}

.company-image:hover {
  transform: scale(1.05);
}

.company-description {
  line-height: 1.8;
}

.company-description p {
  margin-bottom: 1.2rem;
}

.company-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.detail-item {
  padding: 1.2rem;
  background-color: var(--background-color);
  border-radius: 10px;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all var(--transition-speed);
}

.detail-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px var(--shadow-color);
}

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

.detail-item h3 {
  font-size: 0.9rem;
  color: var(--primary-color);
  margin-bottom: 0.3rem;
}

.services-section {
  margin-top: 4rem;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.service-card {
  background-color: var(--background-color);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 10px 15px var(--shadow-color);
  transition: all var(--transition-speed);
  position: relative;
  overflow: hidden;
}

.service-card:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.service-card:hover {
  transform: translateY(-5px);
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-icon i {
  font-size: 1.5rem;
  color: white;
}

.service-title {
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.service-description {
  line-height: 1.7;
  color: var(--text-color);
}

.experience-section {
  margin-top: 4rem;
}

.experience-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.experience-text {
  line-height: 1.8;
}

.experience-list {
  margin-top: 1.5rem;
  list-style: none;
}

.experience-list li {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.experience-list i {
  color: var(--primary-color);
}

.project-showcase {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.project-showcase h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 992px) {
  .infos {
    grid-template-columns: 1fr;
  }

  .avenir-content,
  .company-content,
  .experience-content {
    grid-template-columns: 1fr;
  }

  .company-details {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 3rem;
  }

  .skills-grid,
  .languages-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    gap: 1rem;
  }

  .hero {
    height: 50vh;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

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

@media (max-width: 576px) {
  .buttons-container {
    flex-direction: column;
  }

  .infos_droit_title {
    font-size: 1.6rem;
  }

  .hero {
    height: 40vh;
  }

  .hero-title {
    font-size: 2rem;
  }

  .stats-container {
    grid-template-columns: 1fr;
  }
}

/* School page styles */
.school-hero {
  background: linear-gradient(135deg, #3a0ca3, #4361ee);
}

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

.school-image-container {
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 10px 15px var(--shadow-color);
}

.school-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.school-image:hover {
  transform: scale(1.05);
}

.school-details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.school-description {
  line-height: 1.8;
  margin-top: 2rem;
}

.info-card {
  display: flex;
  gap: 1rem;
  padding: 1.2rem;
  background-color: var(--background-color);
  border-radius: 10px;
  border-left: 3px solid var(--primary-color);
  transition: all var(--transition-speed);
}

.info-card:hover {
  transform: translateX(5px);
  box-shadow: 0 5px 15px var(--shadow-color);
}

.info-card i {
  font-size: 2rem;
  color: var(--primary-color);
}

.info-card h3 {
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.bts-section {
  margin-top: 4rem;
}

.bts-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.bts-info {
  line-height: 1.8;
}

.bts-info p {
  margin-bottom: 1.2rem;
}

.bts-skills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.skill-card {
  padding: 1.5rem;
  background-color: var(--background-color);
  border-radius: 10px;
  box-shadow: 0 5px 15px var(--shadow-color);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  transition: transform var(--transition-speed);
}

.skill-card:hover {
  transform: translateY(-5px);
}

.skill-card i {
  font-size: 2rem;
  color: var(--primary-color);
}

.skill-card h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stats-section {
  margin-top: 4rem;
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat-card {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: white;
  padding: 2rem;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 10px 15px var(--shadow-color);
  transition: transform var(--transition-speed);
}

.stat-card:hover {
  transform: translateY(-5px);
}

.stat-value {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.stat-title {
  font-size: 1.1rem;
  font-weight: 500;
}

/* Add these responsive fixes to existing media queries */
@media (max-width: 992px) {

  .school-content,
  .bts-content {
    grid-template-columns: 1fr;
  }

  .stats-container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .bts-skills {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .stats-container {
    grid-template-columns: 1fr;
  }
}

/* Veille Technologique page styles */
.veille-hero {
  background: linear-gradient(135deg, #6c5ce7, #0984e3);
}

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

.veille-image-container {
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 10px 15px var(--shadow-color);
}

.veille-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.veille-image:hover {
  transform: scale(1.05);
}

.veille-text {
  line-height: 1.8;
}

.veille-list {
  margin-top: 1.5rem;
  list-style: none;
}

.veille-list li {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.veille-list i {
  color: var(--primary-color);
}

.sources-section {
  margin-top: 4rem;
}

.sources-category {
  margin-bottom: 3rem;
}

.sources-category h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.sources-category h3 i {
  font-size: 1.8rem;
}

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

.source-card {
  background-color: var(--background-color);
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 5px 15px var(--shadow-color);
  transition: transform var(--transition-speed);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.source-card:hover {
  transform: translateY(-5px);
}

.source-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.source-logo {
  width: 60px;
  height: 60px;
  object-fit: contain;
  border-radius: 8px;
}

.youtube-logo {
  border-radius: 50%;
}

.source-header h4 {
  font-size: 1.2rem;
  color: var(--primary-color);
}

.source-card p {
  flex-grow: 1;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.source-link {
  align-self: flex-start;
  text-decoration: none;
  color: var(--primary-color);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-speed);
}

.source-link:hover {
  transform: translateX(5px);
}

/* Responsive design for veille page */
@media (max-width: 992px) {
  .veille-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sources-grid {
    grid-template-columns: 1fr;
  }
}

/* Ajouter ces styles à la fin du fichier */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 4px 8px var(--shadow-color);
  transition: all var(--transition-speed);
}

.theme-toggle:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px var(--shadow-color);
}

/* Améliorations de la navigation mobile */
@media (max-width: 768px) {
  .nav {
    padding: 1rem;
    background-color: var(--card-bg-color);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 -5px 10px var(--shadow-color);
    display: flex;
    justify-content: space-around;
    border-radius: 15px 15px 0 0;
  }

  .nav_link {
    color: var(--text-color);
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem;
  }

  .nav_link i {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
  }

  .hero-wrapper {
    padding-bottom: 70px;
  }

  .theme-toggle {
    bottom: 80px;
  }
}

/* Expertise Section */
.expertise-section {
  overflow: hidden;
}

.expertise-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

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

.expertise-card {
  background: var(--card-bg-color);
  border-radius: 15px;
  padding: 2rem;
  transition: all var(--transition-speed);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(var(--primary-color-rgb), 0.1);
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  opacity: 0;
  transition: opacity var(--transition-speed);
}

.expertise-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px var(--shadow-color);
}

.expertise-card:hover::before {
  opacity: 1;
}

.expertise-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.expertise-icon i {
  font-size: 1.8rem;
  color: white;
}

.expertise-card h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.expertise-card p {
  color: var(--light-text-color);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.expertise-details {
  list-style: none;
  padding: 0;
}

.expertise-details li {
  padding: 0.5rem 0;
  color: var(--text-color);
  font-size: 0.9rem;
  position: relative;
  padding-left: 1.5rem;
}

.expertise-details li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-color);
}

/* Media Queries for Expertise Section */
@media (max-width: 768px) {
  .expertise-cards {
    grid-template-columns: 1fr;
  }
}