/* Modern Styles for Academic Reference Generator */

:root {
  --primary-color: #4361ee;
  --primary-dark: #3a56d4;
  --secondary-color: #7209b7;
  --accent-color: #f72585;
  --light-color: #f8f9fa;
  --dark-color: #212529;
  --gray-color: #6c757d;
  --success-color: #38b000;
  --warning-color: #ff9e00;
  --danger-color: #d90429;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

body {
  font-family: 'Inter', 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: #f5f7fa;
  margin: 0;
  padding: 0;
}

/* Header Styling */
header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  padding: 1.5rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

header h1 {
  margin: 0;
  font-weight: 700;
  font-size: 1.8rem;
  letter-spacing: -0.5px;
}

.nav-link {
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.nav-link.active {
  background-color: rgba(255, 255, 255, 0.3);
}

/* Main Content Styling */
main {
  padding: 2rem 0;
}

.lead {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--gray-color);
  max-width: 800px;
  margin: 0 auto 2rem;
  text-align: center;
}

.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  margin-bottom: 2rem;
  overflow: hidden;
}

.card:hover {
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.card-header {
  background-color: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  padding: 1.25rem 1.5rem;
}

.card-header h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
}

.card-body {
  padding: 1.5rem;
  background-color: #fff;
}

/* Form Styling */
.form-label {
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--dark-color);
}

.form-control {
  border-radius: var(--border-radius);
  border: 1px solid #dee2e6;
  padding: 0.75rem 1rem;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
}

.form-select {
  border-radius: var(--border-radius);
  border: 1px solid #dee2e6;
  padding: 0.75rem 1rem;
  transition: var(--transition);
}

.form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
}

.form-check-input:checked {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

/* Button Styling */
.btn {
  border-radius: var(--border-radius);
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-success {
  background-color: var(--success-color);
  border-color: var(--success-color);
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

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

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.875rem;
}

/* Reference Item Styling */
.reference-item {
  cursor: pointer;
  transition: var(--transition);
  border-left: 3px solid transparent;
  padding: 1rem 1.25rem;
}

.reference-item:hover {
  background-color: rgba(67, 97, 238, 0.05);
  border-left-color: var(--primary-color);
}

.reference-item.selected {
  background-color: rgba(67, 97, 238, 0.1);
  border-left-color: var(--primary-color);
}

.reference-item h5 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

/* Formatted Reference Styling */
#formatted-reference, #in-text-citation {
  font-family: 'Georgia', 'Times New Roman', Times, serif;
  line-height: 1.8;
  background-color: #f8f9fa;
  border-radius: var(--border-radius);
  padding: 1.25rem;
  border-left: 4px solid var(--primary-color);
}

/* Validation Styling */
.alert-validation {
  border-radius: var(--border-radius);
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.alert-validation.high {
  background-color: rgba(56, 176, 0, 0.1);
  border-left: 4px solid var(--success-color);
}

.alert-validation.medium {
  background-color: rgba(255, 158, 0, 0.1);
  border-left: 4px solid var(--warning-color);
}

.alert-validation.low {
  background-color: rgba(217, 4, 41, 0.1);
  border-left: 4px solid var(--danger-color);
}

/* Loading Spinner */
.spinner-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 3rem 0;
}

.spinner-border {
  width: 3rem;
  height: 3rem;
}

/* Footer Styling */
footer {
  background-color: #fff;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  padding: 1.5rem 0;
  margin-top: 3rem;
}

footer p {
  font-size: 0.9rem;
}

/* Tab Navigation */
.nav-tabs {
  border: none;
  margin-bottom: 1.5rem;
}

.nav-tabs .nav-link {
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 0.75rem 1.25rem;
  font-weight: 500;
  color: var(--gray-color);
}

.nav-tabs .nav-link:hover {
  border-color: rgba(67, 97, 238, 0.5);
  color: var(--primary-color);
}

.nav-tabs .nav-link.active {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background-color: transparent;
}

/* Copy Button Animation */
.copy-btn-success {
  background-color: var(--success-color) !important;
  border-color: var(--success-color) !important;
  color: white !important;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  header .container {
    flex-direction: column;
    text-align: center;
  }
  
  header nav {
    margin-top: 1rem;
  }
  
  .card-header, .card-body {
    padding: 1.25rem;
  }
  
  .btn {
    padding: 0.6rem 1.2rem;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --light-color: #212529;
    --dark-color: #f8f9fa;
  }
  
  body, p, h3, h4, li {
  color: #ffffff;
  }

  body {
    background-color: #121212;
  }
  
  .card, .card-header, .card-body, footer {
    background-color: #1e1e1e;
  }
  
  .card-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }
  
  .form-control, .form-select {
    background-color: #2d2d2d;
    border-color: #444;
    color: #fff;
  }
  
  #formatted-reference, #in-text-citation {
    background-color: #2d2d2d;
  }
}

/* Add inside the @media (prefers-color-scheme: dark) section */
.form-label, .form-check-label, footer p, .lead {
  color: #adb5bd;
}

.form-control::placeholder, .form-select {
  color: #6c757d;
}

.form-control, .form-select {
  color: #e9ecef;
}

/* Add this to your styles.css file */
.reference-item:hover small {
  color: var(--primary-color);
}

/* Add this inside your @media (prefers-color-scheme: dark) section */
@media (prefers-color-scheme: dark) {
  /* Your existing dark mode styles... */
  
  .reference-item:hover small {
    color: var(--primary-color);
  }
}

  #reference-validation strong,
  #generated-reference-container .card-body h3.h5 {
    color: #e9ecef; /* Light gray for better visibility in dark mode */
  }

  /* Fix for selected item small text visibility */
  .reference-item.selected small {
    color: #adb5bd; /* Light gray for visibility on selected background */
  }

  /* Fix for author text visibility in dark mode */
  .reference-item p {
    color: #adb5bd; /* Light gray for visibility */
  }

  /* Fix for author text visibility in Saved References (dark mode) */
  #saved-references .list-group-item p {
    color: #adb5bd; /* Light gray for visibility */
  }