:root {
  --primary-color: #1D8EE4;
  --convert-color: #00AC62;
  --background-color: #F5F8FA;
  --features-bg-color: #E8F2FA;
  --card-bg-color: #F5FAFF;
  --card-border-color: #D8E5EF;
  --text-color: #333333;
  --border-radius: 8px;
  --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #FFF;
  color: var(--text-color);
  line-height: 1.6;
  padding: 0;
  margin: 0;
}

header {
  background: #E8F2FA;
}

.navbar {
  background-color: white !important;
  padding: 15px 0;
  margin-bottom: 0 !important;
}

.navbar-brand {
  color: var(--text-color) !important;
  font-weight: 600;
  display: flex;
  align-items: center;
}

.navbar-logo {
  width: 32px;
  height: 32px;
  margin-right: 8px;
}

.nav-link {
  color: var(--text-color) !important;
  font-weight: 500;
  padding: 8px 16px !important;
}

.nav-link:hover {
  color: var(--primary-color) !important;
}

.language-selector {
  border-radius: 8px;
  padding: 8px 16px;
  font-weight: 500;
  background-color: #f0f2f5;
  color: var(--text-color);
  display: flex;
  align-items: center;
  border: none;
}

.language-selector img {
  margin-right: 8px;
}

.language-selector .dropdown-toggle::after {
  margin-left: 8px;
}

.hero-section {
  padding: 60px 0;
  text-align: center;
}

.main-heading {
  font-weight: 700;
  font-size: 42px;
  margin-bottom: 16px;
  color: #333;
}

.lead-text {
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto 40px;
  color: #666;
}

.action-button {
  border-radius: 8px;
  padding: 12px 24px;
  font-weight: 600;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  width: 100%;
  text-decoration: none;
}

.action-button svg {
  margin-right: 8px;
}

.compress-button, .download-all-button {
  background-color: #1D8EE4;
  color: white;
}

.compress-button:hover, .download-all-button:hover {
  background-color: #1a7fcf;
  color: white;
}

.convert-button {
  background-color: #00AC62;
  color: white;
}

.convert-button:hover {
  background-color: #009556;
  color: white;
}

.features-section {
  padding: 40px 0;
}

.features-heading {
  text-align: center;
  margin-bottom: 30px;
  font-weight: 600;
  color: #333;
}

.features-container {
  background: #E8F2FA;
  border-radius: 12px;
  padding: 30px;
}

.feature-card {
  background-color: #F5FAFF;
  border-radius: 8px;
  border: 1px solid #D8E5EF;
  padding: 24px;
  text-align: center;
  height: 100%;
  transition: transform 0.2s ease;
}

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

.feature-icon {
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}

.feature-icon img {
  width: 24px;
  height: 24px;
}

.feature-title {
  font-weight: 500;
  margin-bottom: 0;
  color: #333;
  font-size: 16px;
}

.btn-group {
  margin-bottom: 40px;
}

@media (max-width: 767px) {
  .main-heading {
    font-size: 32px;
  }
  
  .lead-text {
    font-size: 16px;
  }
  
  .action-button {
    padding: 10px 20px;
  }
}