:root {
  --primary: #5d3be8;
  --primary-light: #7e61ff;
  --secondary: #ff6b6b;
  --dark: #2a2a2a;
  --light: #ffffff;
  --gray: #f5f5f5;
  --transition: all 0.3s ease;
}

/* Dark mode colors */
[data-theme="dark"] {
  --primary: #7e61ff;
  --primary-light: #9d85ff;
  --secondary: #ff7a7a;
  --dark: #f5f5f5;
  --light: #1a1a1a;
  --gray: #2c2c2c;
}

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

/* Screen-reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Language Selector */
.top-controls {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 100;
  display: flex;
  gap: 15px;
  align-items: center;
}

.language-selector {
  position: relative;
}

.language-button {
  background: linear-gradient(to right, var(--primary-light), var(--primary));
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-family: "Poppins", sans-serif;
  font-size: 0.9rem;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(93, 59, 232, 0.2);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.language-button:hover {
  box-shadow: 0 4px 12px rgba(93, 59, 232, 0.3);
  transform: translateY(-2px);
}

.dropdown-arrow {
  font-size: 0.6rem;
  opacity: 0.8;
  color: white;
}

.language-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background-color: var(--light);
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  width: 150px;
  display: none;
  overflow: hidden;
  margin-top: 8px;
  z-index: 1000;
}

.language-dropdown.active {
  display: block !important;
  animation: fadeIn 0.3s ease-in-out;
}

.language-dropdown a {
  display: block;
  padding: 10px 15px;
  text-decoration: none;
  color: var(--dark);
  transition: var(--transition);
  font-size: 0.9rem;
}

.language-dropdown a:hover {
  background-color: var(--gray);
  color: var(--primary);
}

body {
  font-family: "Poppins", sans-serif;
  background-color: var(--light);
  color: var(--dark);
  line-height: 1.6;
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
  position: relative;
  overflow-x: hidden;
}

/* Particles.js container */
#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -1;
  pointer-events: none;
}

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: none;
  color: var(--dark);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: var(--transition);
  background-color: var(--gray);
}

.theme-toggle:hover {
  background-color: rgba(93, 59, 232, 0.1);
}

.moon-icon,
.sun-icon {
  position: absolute;
  transition:
    transform 0.3s ease,
    opacity 0.3s ease;
}

[data-theme="dark"] .moon-icon {
  opacity: 0;
  transform: translateY(10px);
}

[data-theme="dark"] .sun-icon {
  opacity: 1;
  transform: translateY(0);
}

.moon-icon {
  opacity: 1;
  transform: translateY(0);
}

.sun-icon {
  opacity: 0;
  transform: translateY(-10px);
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  text-align: center;
  margin-bottom: 3rem;
  padding: 2rem 0;
}

h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(120deg, var(--primary), var(--primary-light));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.highlight {
  color: var(--secondary);
  position: relative;
  font-weight: 700;
}

.tagline {
  font-size: 1.2rem;
  color: var(--dark);
  opacity: 0.8;
}

.demo {
  background-color: var(--gray);
  border-radius: 1rem;
  padding: 2rem;
  margin-bottom: 3rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.input-container {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

input {
  flex: 1;
  padding: 1rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-family: "Poppins", sans-serif;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

input:focus {
  outline: none;
  box-shadow: 0 2px 8px rgba(93, 59, 232, 0.2);
}

button {
  background: linear-gradient(to right, var(--primary), var(--primary-light));
  color: white;
  border: none;
  border-radius: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(93, 59, 232, 0.3);
}

.results {
  min-height: 100px;
}

.path-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  align-items: center;
}

.step-item {
  display: flex;
  align-items: center;
  animation: fadeIn 0.5s ease-in-out forwards;
}

.word-box {
  background-color: var(--light);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  font-weight: 600;
}

.word-box.final {
  background-color: var(--secondary);
  color: white;
}

.arrow {
  margin: 0 0.5rem;
  color: var(--dark);
  opacity: 0.6;
}

.count {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 600;
}

.conclusion {
  background-color: var(--primary);
  color: white;
  padding: 1.5rem;
  border-radius: 0.5rem;
  text-align: center;
  font-size: 1.2rem;
  margin-top: 1rem;
  animation: fadeIn 0.5s ease-in-out forwards;
  transform: scale(0.9);
}

.conclusion .highlight {
  color: var(--secondary);
}

/* .hidden already defined below; keep a single definition to avoid duplication */

.explanation {
  margin-bottom: 3rem;
}

h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--primary);
}

.steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.step {
  flex: 1;
  min-width: 200px;
  background-color: var(--gray);
  padding: 1.5rem;
  border-radius: 0.5rem;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.step:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--primary);
  color: white;
  border-radius: 50%;
  margin: 0 auto 1rem;
  font-weight: 600;
}

.example {
  background-color: var(--gray);
  padding: 1.5rem;
  border-radius: 0.5rem;
  margin-top: 2rem;
  line-height: 1.8;
  transition: var(--transition);
  cursor: pointer;
}

.example:hover {
  background-color: rgba(93, 59, 232, 0.05);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.example.refreshed {
  animation: pulse 0.5s ease-in-out;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
    background-color: rgba(93, 59, 232, 0.1);
  }
  100% {
    transform: scale(1);
  }
}

.example .word {
  color: var(--primary);
  font-weight: 600;
}

.example .count {
  color: var(--dark);
  opacity: 0.7;
}

/* New feature styling */
.suggest-button {
  background-color: var(--gray);
  color: var(--dark);
  margin-left: 10px;
}

.action-buttons {
  display: flex;
  gap: 10px;
  margin-top: 15px;
  justify-content: center;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background-color: var(--gray);
  color: var(--dark);
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.action-btn:hover {
  background-color: rgba(93, 59, 232, 0.1);
}

/* Statistics Dashboard */
.dashboard {
  background-color: var(--gray);
  border-radius: 1rem;
  padding: 2rem;
  margin: 2rem 0;
}

.stats-container {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background-color: var(--light);
  border-radius: 0.5rem;
  padding: 1.5rem;
  flex: 1;
  text-align: center;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--dark);
  opacity: 0.7;
  margin-top: 0.5rem;
}

.chart-container {
  background-color: var(--light);
  border-radius: 0.5rem;
  padding: 1rem;
  height: 300px;
}

/* History Section */
.history-section {
  margin: 2rem 0;
}

.history-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.history-item {
  background-color: var(--gray);
  border-radius: 0.5rem;
  padding: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.history-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.history-word {
  font-weight: 600;
  color: var(--primary);
}

.history-steps {
  font-size: 0.8rem;
  opacity: 0.7;
  margin-top: 0.5rem;
}

/* Community Section */
.community-section {
  margin: 2rem 0;
}

.popular-words,
.interesting-paths {
  margin-bottom: 2rem;
}

.word-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.cloud-word {
  background-color: var(--gray);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.cloud-word:hover {
  background-color: var(--primary-light);
  color: white;
}

.path-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.path-item {
  background-color: var(--gray);
  padding: 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.path-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

/* Daily Challenge */
.daily-challenge {
  background-color: var(--primary);
  color: white;
  border-radius: 1rem;
  padding: 2rem;
  margin: 2rem 0;
  text-align: center;
}

.daily-challenge h2 {
  color: white;
  margin-bottom: 1rem;
}

.challenge-word {
  font-size: 2rem;
  font-weight: 700;
  margin: 1rem 0;
  background-color: rgba(255, 255, 255, 0.2);
  display: inline-block;
  padding: 0.5rem 2rem;
  border-radius: 2rem;
}

.challenge-btn {
  background-color: white;
  color: var(--primary);
  border: none;
  padding: 0.8rem 2rem;
  border-radius: 2rem;
  font-weight: 600;
  margin-top: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.challenge-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Path Optimizer */
.path-optimizer {
  background-color: var(--gray);
  border-radius: 1rem;
  padding: 2rem;
  margin: 2rem 0;
}

.optimizer-input {
  display: flex;
  gap: 1rem;
  margin: 1rem 0;
}

.optimizer-input input {
  flex: 1;
}

/* Audio Player */
.audio-player {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 100;
}

.audio-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--light);
  color: var(--dark);
  border: 1px solid rgba(0, 0, 0, 0.1);
  padding: 8px 16px;
  border-radius: 2rem;
  font-size: 0.9rem;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.audio-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 1rem;
}

.nav-tab {
  background: none;
  border: none;
  padding: 8px 16px;
  border-radius: 2rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  color: var(--dark);
  opacity: 0.6;
}

.nav-tab:hover {
  opacity: 1;
}

.nav-tab.active {
  background-color: var(--primary);
  color: white;
  opacity: 1;
}

.hidden {
  display: none;
}

/* Custom Share Dialog */
.share-dialog {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
}

.share-dialog.active {
  opacity: 1;
  visibility: visible;
  display: flex;
}

.share-dialog-content {
  background-color: var(--light);
  border-radius: 1rem;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

.share-dialog-header {
  padding: 1.5rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.share-dialog-header h3 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--dark);
}

.close-button {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--dark);
  opacity: 0.6;
  transition: var(--transition);
}

.close-button:hover {
  opacity: 1;
}

.share-dialog-body {
  padding: 1.5rem;
}

.share-url-container {
  display: flex;
  margin: 1rem 0;
  background-color: var(--gray);
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.share-url-container input {
  flex: 1;
  padding: 0.8rem 1rem;
  border: none;
  background-color: transparent;
  font-size: 0.9rem;
  color: var(--dark);
}

.copy-button {
  background-color: var(--gray);
  border: none;
  border-left: 1px solid rgba(0, 0, 0, 0.1);
  padding: 0.5rem 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--dark);
  transition: var(--transition);
}

.copy-button:hover {
  background-color: rgba(93, 59, 232, 0.1);
}

.share-success {
  margin: 0.5rem 0;
  padding: 0.5rem;
  background-color: rgba(0, 200, 0, 0.1);
  color: green;
  border-radius: 0.5rem;
  text-align: center;
  font-size: 0.9rem;
  animation: fadeInOut 3s forwards;
}

@keyframes fadeInOut {
  0% {
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

.share-platforms {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  justify-content: center;
}

.platform-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--gray);
  border: none;
  border-radius: 0.5rem;
  padding: 1rem;
  cursor: pointer;
  transition: var(--transition);
  flex: 1;
  color: var(--dark);
}

.platform-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

footer {
  text-align: center;
  padding: 2rem 0;
  color: var(--dark);
  opacity: 0.6;
}

/* SEO Footer Section */
.seo-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  text-align: left;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: var(--dark);
  opacity: 0.6;
  background-color: var(--light);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.seo-footer h2 {
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
  color: var(--dark);
  text-align: left;
  opacity: 0.8;
}

.seo-footer p {
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 1rem;
}

/* Style for dark theme */
[data-theme="dark"] .seo-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(26, 26, 26, 0.8);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Responsive styling for SEO content */
@media (max-width: 768px) {
  .seo-footer {
    font-size: 0.8rem;
    padding: 1rem;
    margin-top: 1.5rem;
  }
}

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

@media screen and (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  .steps {
    flex-direction: column;
  }

  .step {
    margin-bottom: 1rem;
  }

  .input-container {
    flex-direction: column;
  }

  button {
    width: 100%;
  }
}