/* Root Colors */
:root {
  --white-color: #ffffff;
  --primary-color: #21014a;
  --secondary-color: #ff8a1d;
  --section-bg-color: #f8f5ff;
  --dark-color: #333333;
  --p-color: #555555;
  --border-color: #e0e0e0;
  --card-shadow: 0 8px 15px rgba(33, 1, 74, 0.1);
  --hover-shadow: 0 12px 20px rgba(33, 1, 74, 0.2);
}

/* General Body Styling */
body {
  font-family: "Arial", sans-serif;
  background-color: var(--section-bg-color);
  color: var(--dark-color);
  line-height: 1.6;
  padding-top: 76px;
}

/* Navbar Styling */
.navbar {
  background: linear-gradient(135deg, var(--primary-color), #3a0c72);
  padding: 15px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.logo-img {
  height: 50px;
  width: 50px;
  margin-right: 12px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.brand-text {
  font-weight: 700;
  color: var(--white-color);
  text-transform: uppercase;
  font-size: 1.3rem;
}

.navbar-toggler {
  border: none;
  outline: none;
  padding: 5px;
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-nav .nav-link {
  color: var(--white-color);
  font-weight: 500;
  margin: 0 5px;
  padding: 8px 15px;
  border-radius: 20px;
  transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  background-color: var(--secondary-color);
  color: var(--white-color);
  transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
  padding: 60px 0 30px;
  text-align: center;
}

.main-title {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 700;
  text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.1);
}

.main-description {
  font-size: 1.1rem;
  color: var(--p-color);
  max-width: 800px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

/* Vocabulary Cards */
.vocabulary-section {
  padding: 20px 0 60px;
}

.vocabulary-card {
  transition: all 0.5s ease;
}

.hidden-card {
  display: none;
  opacity: 0;
  transform: translateY(20px);
}

.doc-card {
  border: 1px solid var(--border-color);
  border-radius: 15px;
  padding: 25px;
  background-color: var(--white-color);
  box-shadow: var(--card-shadow);
  transition: all 0.4s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.doc-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--hover-shadow);
  border-color: var(--secondary-color);
}

.card-content {
  margin-bottom: 20px;
}

.icon-card {
  color: var(--secondary-color);
  margin-right: 8px;
  font-size: 1.2rem;
}

.doc-card h3 {
  color: var(--primary-color);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 15px;
  line-height: 1.4;
}

.doc-card p {
  color: var(--p-color);
  margin-bottom: 0;
}

.download-btn {
  display: inline-block;
  background: linear-gradient(to right, var(--secondary-color), #ff9f45);
  color: var(--white-color);
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 8px rgba(255, 138, 29, 0.3);
  border: none;
  width: fit-content;
}

.download-btn:hover {
  background: linear-gradient(to right, var(--primary-color), #3a0c72);
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(33, 1, 74, 0.3);
  color: var(--white-color);
}

/* Show More Button */
.show-more-btn {
  background: linear-gradient(135deg, var(--primary-color), #3a0c72);
  color: var(--white-color);
  border: none;
  padding: 15px 40px;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.4s ease;
  box-shadow: 0 6px 15px rgba(33, 1, 74, 0.2);
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
}

.show-more-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s ease;
}

.show-more-btn:hover::before {
  left: 100%;
}

.show-more-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 25px rgba(33, 1, 74, 0.3);
  background: linear-gradient(135deg, var(--secondary-color), #ff9f45);
}

.show-more-btn:active {
  transform: translateY(-1px) scale(1.02);
}

.show-more-btn i {
  transition: transform 0.3s ease;
}

.show-more-btn:hover i {
  transform: translateY(2px);
}

/* Footer Styling */
footer {
  background: linear-gradient(135deg, var(--primary-color), #3a0c72);
  color: var(--white-color);
  padding: 40px 0 20px;
}

footer h4 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  font-weight: 600;
  color: var(--white-color);
}

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

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

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: var(--secondary-color);
  padding-left: 5px;
}

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

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: var(--white-color);
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-links a:hover {
  background-color: var(--secondary-color);
  transform: translateY(-3px);
}

footer p {
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.8);
}

.copyright {
  margin-top: 10px;
  padding-top: 15px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Adjustments */
@media (max-width: 992px) {
  .brand-text {
    font-size: 1.1rem;
  }

  .navbar-nav {
    margin-top: 15px;
  }

  .navbar-nav .nav-link {
    text-align: center;
    margin: 5px 0;
  }

  .show-more-btn {
    padding: 12px 30px;
    font-size: 1rem;
  }
}

@media (max-width: 768px) {
  body {
    padding-top: 66px;
  }

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

  .brand-text {
    font-size: 1rem;
  }

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

  .main-description {
    font-size: 1rem;
    padding: 0 15px;
  }

  .doc-card {
    padding: 20px;
  }

  .show-more-btn {
    padding: 10px 25px;
    font-size: 0.95rem;
  }

  footer {
    text-align: center;
  }

  .social-links {
    justify-content: center;
    margin-bottom: 20px;
  }

  footer h4 {
    margin-top: 20px;
  }
}

@media (max-width: 576px) {
  .main-title {
    font-size: 1.7rem;
  }

  .doc-card h3 {
    font-size: 1.2rem;
  }

  .doc-card {
    padding: 15px;
  }

  .download-btn {
    padding: 8px 16px;
    font-size: 0.9rem;
  }

  .show-more-btn {
    padding: 8px 20px;
    font-size: 0.9rem;
  }
}