:root{
  --bg:#f5f7fa;
  --card-bg:#ffffff;
  --text:#212529;
  --primary:#c41e3a;
  --accent:#e9ecef;
}

body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;background:var(--bg);color:var(--text);margin:0;padding:20px;}

.container{max-width:800px;margin:0 auto;background:var(--card-bg);padding:2rem;border-radius:10px;box-shadow:0 4px 12px rgba(0,0,0,0.05);}

h1{text-align:center;color:#c41e3a;margin-top:0}
.subtitle{text-align:center;color:#666;margin-bottom:1.5rem}
textarea{
  width:100%;
  min-height:220px;
  max-height:500px;
  padding:12px;
  font-size:16px;
  resize:none;
  box-sizing:border-box;
  border:1px solid #ced4da;
  border-radius:6px;
  overflow-y:auto;
  transition: height 0.1s ease;
}

/* overlay for live highlighting */
#editor-container{position:relative}
#editor-backdrop, #textInput{
  width:100%;
  min-height:220px;
  max-height:500px;
  font-size:16px;
  line-height:1.5;
  font-family:inherit;
  box-sizing:border-box;
}

#editor-backdrop{
  position:absolute;
  top:0;left:0;
  white-space:pre-wrap;
  word-wrap:break-word;
  color:transparent;
  pointer-events:none;
  overflow-y:auto;
  padding:12px;
}

#editor-backdrop mark{
  background:none;
  text-decoration:wavy underline var(--primary);
  text-decoration-skip-ink:none;
  pointer-events:auto;
  cursor:pointer;
}

#textInput{position:relative;background:transparent;color:var(--text);}

/* 📊 Writing statistics */
#stats-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  padding: 8px 12px;
  background-color: var(--accent);
  border-radius: 4px;
  font-size: 13px;
  color: #666;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

#stats-container:hover {
  border-color: var(--primary);
  background-color: var(--card-bg);
}

#stats-container span {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 500;
}

#error-count {
  color: var(--primary);
  font-weight: 600;
}

#error-count.no-errors {
  color: #28a745;
}

/* Responsive stats on smaller screens */
@media (max-width: 600px) {
  #stats-container {
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }
  
  .error-item {
    padding: 0.75rem;
  }
  
  .suggestion {
    display: block;
    margin: 2px 0;
    text-align: center;
  }
  
  .suggestions-label {
    display: block;
    margin-bottom: 0.25rem;
  }
}

.button-group{
  margin:1rem 0;
  text-align:center;
}
button{background:var(--primary);color:#fff;border:none;padding:10px 20px;border-radius:6px;font-size:16px;cursor:pointer}
button:disabled{background:#aaa}
.results-header{background:var(--accent);margin-top:1rem;padding:1rem;border-radius:6px;font-size:14px;color:#333}

/* Error list styles */
.errors-list {
  margin-top: 1rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  overflow: hidden;
}

.error-item {
  padding: 1rem;
  border-bottom: 1px solid var(--accent);
  background: var(--card-bg);
  transition: background-color 0.2s ease;
}

.error-item:last-child {
  border-bottom: none;
}

.error-item:hover {
  background: var(--accent);
}

.error-word {
  color: var(--primary);
  font-weight: bold;
  font-size: 16px;
  margin-bottom: 0.5rem;
}

.suggestions-list {
  margin: 0.5rem 0;
}

.suggestions-label {
  color: #666;
  font-size: 14px;
  margin-right: 0.5rem;
}

.suggestion {
  display: inline-block;
  margin: 3px 3px;
  padding: 4px 8px;
  background: var(--accent);
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease;
  font-size: 14px;
}

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

.no-suggestions {
  color: #888;
  font-style: italic;
  font-size: 14px;
  margin: 0.5rem 0;
}

.error-actions {
  margin-top: 0.5rem;
}

.error-actions .add-dict {
  color: var(--primary);
  cursor: pointer;
  font-size: 14px;
  text-decoration: underline;
  transition: color 0.2s ease;
}

.error-actions .add-dict:hover {
  color: #a01830;
}

/* Popup for suggestions */
#suggestion-popup {
  position: absolute;
  display: none;
  background-color: var(--card-bg);
  border: 1px solid var(--accent);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  border-radius: 6px;
  padding: 8px;
  z-index: 100;
  max-width: 300px;
}

#suggestion-popup .suggestion {
  display: block; /* each on its own line */
  margin: 2px 0;
  background: var(--accent);
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

#suggestion-popup .suggestion:hover {
  background: var(--primary);
  color: white;
}

#suggestion-popup .no-suggestion {
  color: #888;
}

#suggestion-popup .add-dict {
  display: block;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--accent);
  color: var(--primary);
  cursor: pointer;
  font-size: 14px;
}

/* 📊 Progress indicator styles */
#progress-container {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

#progress-bar {
  flex: 1;
  height: 8px;
  background-color: var(--accent);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

#progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #ff8a95);
  border-radius: 4px;
  width: 0%;
  transition: width 0.2s ease;
  position: relative;
}

#progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

#progress-text {
  font-size: 14px;
  font-weight: bold;
  color: var(--primary);
  min-width: 40px;
  text-align: right;
}

/* Dark mode overrides */
body.dark{
  --bg:#1e1e2d;
  --card-bg:#2b2b3d;
  --text:#f1f1f1;
  --primary:#ff6377;
  --accent:#3a3a4d;
}