/* Custom CSS for EW Sprachensuccess */

/* Smooth transitions for page changes */
.page {
  display: none;
  animation: fadeIn 0.5s ease-in;
}

.page.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Navigation active state */
.nav-link.active {
  color: #1d4ed8;
  font-weight: 600;
  position: relative;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #1d4ed8;
}

/* Custom button hover effects */
.btn-primary {
  background-color: #1d4ed8;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: #1e40af;
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
  background-color: #16a34a;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background-color: #15803d;
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Course card hover effects */
.course-card {
  transition: all 0.3s ease;
  border: 1px solid #e2e8f0;
  overflow: hidden;
}

.course-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Payment method selection */
.payment-method.active {
  border-color: #1d4ed8;
  background-color: #eff6ff;
}

/* Form styling */
.form-input:focus {
  outline: none;
  border-color: #1d4ed8;
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
}

/* Loading animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Mobile menu animation */
#mobile-menu {
  transition: max-height 0.3s ease;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid #1d4ed8;
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .no-print {
    display: none !important;
  }
}

/* Gradient backgrounds */
.gradient-bg {
  background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 50%, #3b82f6 100%);
}

.gradient-bg-secondary {
  background: linear-gradient(135deg, #16a34a 0%, #22c55e 50%, #4ade80 100%);
}

/* Feature icon styling */
.feature-icon {
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  margin: 0 auto 1.5rem;
  font-size: 1.75rem;
}

/* Testimonial styling */
.testimonial-card {
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease;
}

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

/* Stats counter */
.stat-card {
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  padding: 2rem;
  text-align: center;
  transition: transform 0.3s ease;
}

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

/* Language flag styling */
.language-flag {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-right: 0.75rem;
}

/* Progress bar */
.progress-bar {
  height: 8px;
  border-radius: 4px;
  background-color: #e2e8f0;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, #1d4ed8, #3b82f6);
  transition: width 0.5s ease;
}