/* Base Styles */
:root {
  --turquoise: #178582;
  --bleueClair : #E9F1FA;
  --primary-color: #3a86ff;
  --secondary-color: #8338ec;
  --accent-color: #ff006e;
  --dark-color: #1a1a2e;
  --light-color: #f8f9fa;
  --light-color2: #92dbe8;
  --success-color: #28a745;
  --danger-color: #dc3545;
  --warning-color: #fd7e14;
  --info-color: #17a2b8;
  --gray-color: #6c757d;
  --light-gray: #e9ecef;
  --font-primary: "Poppins", sans-serif;
  --font-secondary: "Montserrat", sans-serif;
  --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: var(--font-primary);
  color: var(--dark-color);
  line-height: 1.6;
  background-color: #fff;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 30px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: var(--font-secondary);
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: white;
  box-shadow: 0 4px 15px rgba(58, 134, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(58, 134, 255, 0.6);
}

.btn-outline {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  background: transparent;
}

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

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

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

/* Header & Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 0;
  background-color: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  padding: 15px 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
}

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

.logo img {
  height: 40px;
}

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

.nav-item {
  margin-left: 30px;
  position: relative;
}

.nav-link {
  font-weight: 500;
  color: var(--dark-color);
  position: relative;
}

.nav-link:after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  transition: var(--transition);
}

.nav-link:hover:after {
  width: 100%;
}

.nav-item.active .nav-link:after {
  width: 100%;
}

.btn-register {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: white;
  padding: 10px 20px;
  border-radius: 30px;
  font-weight: 600;
}

.btn-logout {
  color: var(--danger-color);
  font-weight: 600;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--dark-color);
  border-radius: 3px;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  height: 100vh;
  min-height: 700px;
  position: relative;
  margin-top: 80px;
}

.hero-slider {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease;
}

.slide.active {
  opacity: 1;
}

.slide-content {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  max-width: 600px;
  color: white;
}

.slide-content h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.slide-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.slider-nav {
  position: absolute;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}

.slider-nav button {
  background-color: rgba(255, 255, 255, 0.3);
  border: none;
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  margin: 0 10px;
  cursor: pointer;
  transition: var(--transition);
}

.slider-nav button:hover {
  background-color: rgba(255, 255, 255, 0.5);
}

/* Features Section */
.features {
  padding: 30px 0;
  background-color: var(--bleueClair);
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  position: relative;
  font-family: var(--font-secondary);
}

.section-title:after {
  content: "";
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  margin: 20px auto;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--gray-color);
  max-width: 700px;
  margin: 0 auto 50px;
  font-size: 1.1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.feature-card {
  background-color: white;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 30px;
}

.feature-card h3 {
  margin-bottom: 15px;
  font-size: 1.3rem;
}

/* Courses Section */
.popular-courses {
  padding: 50px 0;
  background-color: var(--light-color);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

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

.course-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.course-thumbnail {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.course-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.course-card:hover .course-thumbnail img {
  transform: scale(1.1);
}

.course-category {
  position: absolute;
  top: 15px;
  right: 15px;
  background-color: var(--primary-color);
  color: white;
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.course-content {
  padding: 20px;
}

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

.course-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 15px;
  color: var(--gray-color);
  font-size: 0.9rem;
}

.course-content .btn {
  width: 100%;
  margin-top: 15px;
}

/* Testimonials */
.testimonials {
  padding: 100px 0;
  background-color: var(--bleueClair);
  color: black;
  position: relative;
}

.testimonials .section-title {
  color: black;
}

.testimonials .section-title:after {
  background: black;
}

.testimonial-slider {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.testimonial {
  display: none;
  text-align: center;
  padding: 0 20px;
}

.testimonial.active {
  display: block;
  animation: fadeIn 1s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.testimonial-content {
  background-color: var(--light-color);
  padding: 30px;
  border-radius: 10px;
  margin-bottom: 30px;
  position: relative;
}

.testimonial-content:after {
  content: "";
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 15px 15px 0;
  border-style: solid;
  border-color: rgb(255, 255, 255) transparent transparent;
}

.testimonial-content p {
  font-size: 1.1rem;
  font-style: italic;
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
}

.testimonial-author img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 15px;
  border: 3px solid white;
}

.testimonial-author h4 {
  font-size: 1.2rem;
  margin-bottom: 5px;
}

.testimonial-author span {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* CTA Section */


.cta-content h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.cta-content p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 30px;
}

/* Footer */
.footer {
  background-color: var(--dark-color);
  color: white;
  padding: 50px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h3 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
  font-family: var(--font-secondary);
}

.footer-col h3:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 2px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
}

.footer-col p {
  margin-bottom: 20px;
  opacity: 0.8;
}

/* .footer-logo {
  height: 40px;
  margin-bottom: 20px;
} */

.social-links {
  display: flex;
  gap: 15px;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  transition: var(--transition);
}

.social-links a:hover {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  transform: translateY(-3px);
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  opacity: 0.8;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  opacity: 1;
  color: var(--primary-color);
  padding-left: 5px;
}

.contact-info li {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.contact-info i {
  margin-right: 10px;
  color: var(--primary-color);
  width: 20px;
  text-align: center;
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  opacity: 0.7;
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

.back-to-top.active {
  opacity: 1;
  visibility: visible;
}

/* Page Header */
.page-header {
  padding: 100px 0 60px;
  text-align: center;
  background-color: var(--bleueClair);
}

.page-header h1 {
  font-size: 3rem;
  margin-bottom: 15px;
}

/* Courses Page */
.courses-section {
  padding: 60px 0 100px;
}

.courses-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 30px;
  background-color: var(--light-gray);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.filter-btn.active {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: white;
}

.courses-list {
  display: grid;
  gap: 40px;
}

.course-item {
  background-color: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--box-shadow);
}

.course-item-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 30px;
}

.course-image {
  position: relative;
}

.course-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-category {
  position: absolute;
  top: 15px;
  right: 15px;
  background-color: var(--primary-color);
  color: white;
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.course-details {
  padding: 30px 30px 30px 0;
}

.course-details h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--light-gray);
}

.course-meta {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
  font-size: 0.9rem;
  color: var(--gray-color);
}

.course-meta i {
  margin-right: 5px;
  color: var(--primary-color);
}

.course-content h4 {
  margin: 20px 0 15px;
  font-size: 1.2rem;
}

.course-content ul {
  margin-bottom: 25px;
}

.course-content ul li {
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
}

.course-content ul li i {
  color: var(--success-color);
  margin-right: 10px;
  margin-top: 3px;
}

/* FAQ Section */
.faq-section {
  padding: 80px 0;
  background-color: var(--light-color);
}

.faq-grid {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: white;
  border-radius: 8px;
  margin-bottom: 15px;
  box-shadow: var(--box-shadow);
  overflow: hidden;
}

.faq-question:hover {
  background-color: rgba(58, 134, 255, 0.05);
}

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

.faq-item.active .faq-question i {
  transform: rotate(45deg);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 20px 20px;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .course-item-inner {
    grid-template-columns: 1fr;
  }

  .course-details {
    padding: 30px;
  }
}

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

  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: white;
    flex-direction: column;
    align-items: center;
    padding: 40px 0;
    transition: var(--transition);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-item {
    margin: 15px 0;
  }

  .hero {
    min-height: 600px;
  }

  .slide-content h1 {
    font-size: 2rem;
    text-align: center;
    color: var(--light-color);
  }

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

@media (max-width: 576px) {
  .slide-content h1 {
    font-size: 1rem;
  }

  .slide-content p {
    font-size: 1rem;
  }

  .btn {
    padding: 10px 20px;
  }
}