:root {
  --primary-color: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --secondary-color: #f59e0b;
  --text-color: #1f2937;
  --text-light: #6b7280;
  --background-color: #ffffff;
  --card-color: #f9fafb;
  --border-color: #e5e7eb;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --success-color: #10b981;
  --error-color: #ef4444;
  --highlight-color: #fef3c7;
  --highlight-border: #f59e0b;
  --transition-speed: 0.3s;
}

.dark-theme {
  --primary-color: #818cf8;
  --primary-light: #a5b4fc;
  --primary-dark: #4f46e5;
  --secondary-color: #fbbf24;
  --text-color: #f9fafb;
  --text-light: #d1d5db;
  --background-color: #111827;
  --card-color: #1f2937;
  --border-color: #374151;
  --shadow-color: rgba(0, 0, 0, 0.3);
  --highlight-color: #422006;
  --highlight-border: #d97706;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  transition: background-color var(--transition-speed),
    color var(--transition-speed);
  line-height: 1.6;
}

.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header Styles */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  margin-bottom: 30px;
}

.logo-container {
  display: flex;
  flex-direction: column;
}

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

.logo-text {
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.tagline {
  font-size: 14px;
  color: var(--text-light);
  margin-top: 5px;
}

/* Theme Toggle Switch */
.theme-toggle {
  position: relative;
}

.theme-switch {
  opacity: 0;
  position: absolute;
}

.theme-switch-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  width: 50px;
  height: 26px;
  background: var(--primary-light);
  border-radius: 100px;
  position: relative;
  transition: background-color var(--transition-speed);
}

.theme-switch-label:before {
  content: "";
  position: absolute;
  left: 2px;
  top: 2px;
  width: 22px;
  height: 22px;
  border-radius: 45px;
  transition: transform var(--transition-speed);
  background: var(--background-color);
  box-shadow: 0 0 2px 0 rgba(10, 10, 10, 0.29);
}

.theme-switch:checked + .theme-switch-label {
  background: var(--primary-dark);
}

.theme-switch:checked + .theme-switch-label:before {
  transform: translateX(24px);
}

/* Search Container */
.search-container {
  margin-bottom: 30px;
}

.search-box {
  position: relative;
  margin-bottom: 10px;
}

.search-box input {
  width: 100%;
  padding: 15px 20px;
  padding-right: 50px;
  border-radius: 12px;
  border: 2px solid var(--border-color);
  background-color: var(--card-color);
  color: var(--text-color);
  font-size: 16px;
  transition: all var(--transition-speed);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-box input::placeholder {
  color: var(--text-light);
}

.search-icon {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
}

.search-stats {
  font-size: 14px;
  color: var(--text-light);
  display: flex;
  justify-content: space-between;
}

/* Features Container */
.features-container {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.feature-button {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-color);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.feature-button:hover {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.feature-button svg {
  transition: transform var(--transition-speed);
}

.feature-button:hover svg {
  transform: scale(1.1);
}

/* Results Container */
.results-container {
  flex: 1;
  margin-bottom: 30px;
}

.loading-animation {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 0;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(99, 102, 241, 0.2);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
  margin-bottom: 15px;
}

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

.exact-match-container {
  margin-bottom: 20px;
}

.exact-match-title {
  font-size: 18px;
  margin-bottom: 15px;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.exact-match-card {
  background-color: var(--highlight-color);
  border: 2px solid var(--highlight-border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 6px var(--shadow-color);
  transition: transform var(--transition-speed),
    box-shadow var(--transition-speed);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  margin-bottom: 20px;
}

.exact-match-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px var(--shadow-color);
}

.exact-match-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.exact-match-card p {
  font-size: 18px;
  color: var(--text-color);
}

.exact-match-card .match-type {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 12px;
  padding: 3px 8px;
  background-color: var(--secondary-color);
  color: white;
  border-radius: 20px;
}

/* Improved action buttons for exact match cards */
.exact-match-card .actions {
  display: flex;
  justify-content: flex-start;
  margin-top: 15px;
  gap: 10px;
}

.exact-match-card .action-button {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--card-color);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all var(--transition-speed);
  gap: 6px;
}

.exact-match-card .action-button:hover {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.exact-match-card .action-button.favorite-btn.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.results-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.results-title {
  font-size: 18px;
  margin-bottom: 15px;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.word-card {
  background-color: var(--card-color);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 6px var(--shadow-color);
  transition: transform var(--transition-speed),
    box-shadow var(--transition-speed);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.word-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px var(--shadow-color);
}

.word-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(
    to bottom,
    var(--primary-color),
    var(--primary-light)
  );
}

.word-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.word-card p {
  font-size: 16px;
  color: var(--text-color);
}

.word-card .actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 15px;
}

.word-card .action-button {
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  padding: 5px;
  border-radius: 50%;
  transition: all var(--transition-speed);
}

.word-card .action-button:hover {
  color: var(--primary-color);
  background-color: rgba(99, 102, 241, 0.1);
}

/* History Container */
.history-container {
  margin-bottom: 30px;
}

.history-container h3 {
  font-size: 18px;
  margin-bottom: 15px;
  color: var(--text-color);
}

.history-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.history-item {
  background-color: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 6px 12px;
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.history-item:hover {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Info Panel */
.info-panel {
  background-color: var(--card-color);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 30px;
  box-shadow: 0 4px 6px var(--shadow-color);
}

.stats {
  display: flex;
  justify-content: space-around;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-color);
}

.stat-label {
  font-size: 14px;
  color: var(--text-light);
}

/* Footer */
footer {
  text-align: center;
  padding: 20px 0;
  color: var(--text-light);
  font-size: 14px;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  overflow: auto;
  backdrop-filter: blur(5px);
}

.modal-content {
  background-color: var(--background-color);
  margin: 10% auto;
  padding: 30px;
  border-radius: 12px;
  width: 80%;
  max-width: 600px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  animation: modalFadeIn 0.3s;
  position: relative;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.close-modal {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 28px;
  font-weight: bold;
  color: var(--text-light);
  cursor: pointer;
  transition: color var(--transition-speed);
}

.close-modal:hover {
  color: var(--primary-color);
}

.word-detail {
  padding: 10px 0;
}

.word-detail h2 {
  font-size: 24px;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.word-detail .translation {
  font-size: 18px;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
}

.word-detail .actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.word-detail .action-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-color);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.word-detail .action-btn:hover {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.word-detail .favorite-btn.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 40px 0;
  color: var(--text-light);
}

.empty-state svg {
  width: 60px;
  height: 60px;
  margin-bottom: 15px;
  color: var(--text-light);
}

.empty-state h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--text-color);
}

.empty-state p {
  font-size: 14px;
  max-width: 400px;
  margin: 0 auto;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--card-color);
  color: var(--text-color);
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: 0 4px 12px var(--shadow-color);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-speed), transform var(--transition-speed);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success {
  border-left: 4px solid var(--success-color);
}

.toast.error {
  border-left: 4px solid var(--error-color);
}

.toast-icon {
  color: var(--success-color);
}

.toast.error .toast-icon {
  color: var(--error-color);
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn var(--transition-speed);
}

.slide-up {
  animation: slideUp var(--transition-speed);
}

/* Responsive Design */
@media (max-width: 768px) {
  .results-list {
    grid-template-columns: 1fr;
  }

  .modal-content {
    width: 90%;
    margin: 15% auto;
  }

  .stats {
    flex-direction: column;
    gap: 15px;
  }

  .stat-item {
    flex-direction: row;
    justify-content: space-between;
    width: 100%;
  }
}

@media (max-width: 480px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }

  .theme-toggle {
    align-self: flex-end;
  }

  .features-container {
    flex-direction: column;
    width: 100%;
  }

  .feature-button {
    width: 100%;
    justify-content: center;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--card-color);
}

::-webkit-scrollbar-thumb {
  background-color: var(--primary-light);
  border-radius: 20px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--primary-color);
}

/* Language indicator */
.language-indicator {
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 8px;
  background-color: var(--primary-light);
  color: white;
}