/* ======== RESET & BASE ======== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  line-height: 1.6;
  background-color: #f9f9f9;
}


/* ======== NAVBAR ======== */
.nav-links li a.active {
  color: #4e73df;
  font-weight: bold;
  position: relative;
}

.nav-links li a.active::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #4e73df;
}

header {
  background-color: #1a1a2e;
  color: white;
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  width: 40px;
  height: 40px;
  margin-right: 10px;
}

.logo span {
  font-size: 1.4rem;
  font-weight: bold;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.2rem;
}

.nav-links li a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links li a:hover {
  color: #00adb5;
}

.hamburger {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* ======== RESPONSIVE ======== */
@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 70px;
    right: 0;
    background-color: #1a1a2e;
    width: 100%;
    height: 0;
    overflow: hidden;
    flex-direction: column;
    text-align: center;
    transition: height 0.3s ease;
  }

  .nav-links.open {
    height: 350px;
  }

  .hamburger {
    display: block;
  }
}



/* ======== HERO SECTION ======== */
.hero {
  background: url("images/hero.jpg") no-repeat center center/cover;
  height: 90vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: white;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-color: rgba(0, 0, 0, 0.6); /* dark overlay */
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

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

.btn {
  background-color: #00adb5;
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  text-decoration: none;
  font-weight: bold;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: #007e86;
}

/* ======== HERO RESPONSIVE ======== */
@media (max-width: 992px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.1rem;
  }
}

@media (max-width: 768px) {
  .hero {
    height: 80vh;
    padding: 0 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

@media (max-width: 480px) {
  .hero {
    height: 75vh;
  }

  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }
}



/* ======== COURSES SECTION ======== */
.courses {
  padding: 25px 20px;
  background-color: #f4f4f4;
  text-align: center;
}

.courses h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: #333;
}

.course-filters {
  margin-bottom: 2rem;
}

.filter-btn {
  background-color: #00adb5;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  margin: 0.3rem;
  border-radius: 20px;
  cursor: pointer;
  transition: 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background-color: #007e86;
}

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

.course-card {
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
  overflow: hidden;
  text-align: left;
  transition: transform 0.3s ease;
}

.course-card:hover {
  transform: translateY(-10px);
}

.course-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
}

.course-card h3 {
  padding: 1rem 1rem 0.5rem;
  font-size: 1.2rem;
  color: #222;
}

.course-card p {
  padding: 0 1rem 1rem;
  font-size: 0.95rem;
  color: #666;
}

/* ======== RESPONSIVE ======== */
@media (max-width: 768px) {
  .course-container {
    grid-template-columns: 1fr;
  }
}



/* Instructors Section */
.instructors-section {
  padding: 25px 20px;
  background-color: #fff;
  text-align: center;
}

.instructors-section h2 {
  font-size: 2rem;
  margin-bottom: 40px;
  color: #333;
}

.instructors-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  justify-content: center;
}

.instructor-card {
  background-color: #f9f9f9;
  border-radius: 15px;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.instructor-card:hover {
  transform: translateY(-10px);
}

.instructor-card img {
  width: 100%;
  height: 310px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 15px;
}

.instructor-card h3 {
  margin-bottom: 5px;
  font-size: 1.2rem;
  color: #222;
}

.instructor-card p {
  font-size: 0.9rem;
  color: #666;
}



/* Student Reviews Section */
.reviews {
  padding: 50px 20px;
  text-align: center;
  background-color: #f9f9f9;
}

.reviews h2 {
  font-size: 2.2rem;
  margin-bottom: 2rem;
}

.slider {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
}

.review {
  display: none;
  flex-direction: column;
  align-items: center;
}

.review.active {
  display: flex;
  animation: fadeIn 0.5s ease-in-out;
}

.review img {
  width: 200px;
  height: 200px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 1rem;
}

.review p {
  font-style: italic;
  margin: 1rem 0;
}

.review h4 {
  color: #333;
}

.slider-buttons {
  margin-top: 1.5rem;
}

.slider-buttons button {
  font-size: 1.5rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  background: #333;
  color: white;
  border: none;
  border-radius: 5px;
  margin: 0 0.5rem;
}

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



/* === Live Classes Section === */
.live {
  padding: 70px 20px;
  background-color: #f0f7ff;
  text-align: center;
}

.live h2 {
  font-size: 2.2rem;
  margin-bottom: 2rem;
}

.live-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.live-info h3 {
  font-size: 1.5rem;
  color: #222;
}

.live-info p {
  font-size: 1rem;
  margin: 0.3rem 0;
}

.countdown {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.countdown div {
  background: #fff;
  padding: 1rem;
  border-radius: 10px;
  min-width: 80px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.countdown span {
  font-size: 1.8rem;
  color: #333;
  display: block;
}

.countdown p {
  margin-top: 0.3rem;
  font-size: 0.9rem;
  color: #777;
}

/* Responsive */
@media (min-width: 768px) {
  .live-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    max-width: 1000px;
    margin: auto;
  }
}



/* === Enrollment Section === */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /*navbar sticky*/
}

#enroll {
  background-color: #f4f8ff;
  padding: 80px 20px;
  text-align: center;
}

#enroll h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

#enroll p {
  font-size: 1rem;
  margin-bottom: 20px;
}

.btn-primary {
  padding: 12px 24px;
  background-color: #4e73df;
  color: #fff;
  border: none;
  border-radius: 5px;
  font-weight: bold;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: #375ab7;
}

/* === Modal === */
.modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.6);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background: #fff;
  padding: 30px;
  border-radius: 8px;
  width: 90%;
  max-width: 400px;
  position: relative;
  text-align: center;
}

.modal-content h3 {
  margin-bottom: 20px;
}

.modal-content input {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.modal-content select {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 16px;
  appearance: none;
  background-color: #fff;
  color: #333;
}

.modal-content select:focus {
  border-color: #4e73df;
  outline: none;
  box-shadow: 0 0 5px rgba(78, 115, 223, 0.4);
}

.btn-submit {
  padding: 10px 20px;
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.btn-submit:hover {
  background-color: #1e7e34;
}

.close {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 24px;
  cursor: pointer;
}


/* === Responsive === */
@media (max-width: 768px) {
  #enrollment h2 {
    font-size: 1.5rem;
  }

  .modal-content {
    padding: 20px;
  }
}



/* FAQ Section */
.faq-section {
  padding: 75px 20px;
  background: #fff;
  text-align: center;
}

.faq-section h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  color: #333;
}

.faq-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}

.faq-left {
  text-align: left;
}

.faq-item {
  margin-bottom: 20px;
}

.faq-question {
  width: 100%;
  padding: 13px;
  font-size: 1.1rem;
  font-weight: 600;
  background: #f1f3f6;
  border: none;
  text-align: left;
  cursor: pointer;
  border-radius: 6px;
  transition: 0.3s;
}

.faq-question:hover {
  background: #e0e0e0;
}

.faq-answer {
  padding: 0 15px;
  background: #fafafa;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  border-left: 3px solid #007bff;
  border-radius: 0 0 6px 6px;
}

.faq-answer p {
  padding: 15px 0;
  margin: 0;
  color: #444;
}

.faq-right img {
  width: 100%;
  max-width: 450px;
  border-radius: 10px;
  height: 300px;
}



/* Contact Section */
.contact-section {
  padding: 80px 20px;
  background: url("images/contact-bg.jpg") no-repeat center center/cover;
  color: #fff;
}

.contact-container {
  max-width: 1100px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
  background-color: rgba(85, 75, 75, 0.6);
  padding: 40px;
  border-radius: 12px;
}

.contact-form h2,
.contact-info h3 {
  margin-bottom: 20px;
}

.contact-form form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.contact-form input,
.contact-form textarea {
  padding: 12px;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
}

.contact-form button {
  padding: 12px;
  background-color: #00bcd4;
  color: #fff;
  font-size: 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.3s;
}

.contact-form button:hover {
  background-color: #0097a7;
}

.contact-info p {
  margin: 8px 0;
  font-size: 1rem;
}



/* Footer Section */
.footer {
  background-color: #111;
  color: #fff;
  padding: 60px 20px 20px;
}

.footer-container {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}

.footer-col h3,
.footer-col h4 {
  margin-bottom: 15px;
}

.footer-col p,
.footer-col ul,
.footer-col form {
  font-size: 0.95rem;
  line-height: 1.5;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  color: #ccc;
  text-decoration: none;
  transition: 0.3s;
}

.footer-col ul li a:hover {
  color: #00bcd4;
}

.social-links a {
  color: #fff;
  margin-right: 10px;
  font-size: 1.2rem;
  transition: 0.3s;
}

.social-links a:hover {
  color: #00bcd4;
}

.footer-col form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col input[type="email"] {
  padding: 10px;
  border: none;
  border-radius: 6px;
}

.footer-col button {
  padding: 10px;
  background-color: #00bcd4;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.3s;
}

.footer-col button:hover {
  background-color: #0097a7;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  font-size: 0.9rem;
  color: #aaa;
}