:root {
  --bg-color: #f8f9fa;
  --text-color: #212529;
  --primary-color: #007bff;
  --secondary-color: #6c757d; /* Muted text color for labels */
  --accent-color: var(--text-color);
  --card-bg: #ffffff;
  --border-color: #dee2e6;
  --input-bg: #ffffff;
  --code-bg: #f8f9fa;
  --error-color: #dc3545;
  --success-color: #d4edda; /* A more subtle green for 'copied' */
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  margin: 0;
  padding: 20px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

header {
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

header h1 {
  color: var(--secondary-color);
  margin: 0;
}

.lang-switcher {
  position: absolute;
  top: 20px;
  right: 20px;
}

.lang-switcher button {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 5px 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-switcher button:first-child { border-radius: 5px 0 0 5px; }
.lang-switcher button:last-child { border-radius: 0 5px 5px 0; border-left: none; }
.lang-switcher button.active { background-color: var(--primary-color); border-color: var(--primary-color); color: white; }
.lang-switcher button:hover:not(.active) { background-color: #e9ecef; }

.card {
  background-color: var(--card-bg);
  border-radius: 8px;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
}

h2 {
  color: var(--primary-color);
  margin-top: 0;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.input-form { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.input-form label { font-weight: bold; }
.input-form input[type="text"] {
  flex-grow: 1;
  padding: 0.75rem;
  background-color: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-color);
  font-family: 'Courier New', Courier, monospace;
  font-size: 1rem;
}
.input-form .buttons { display: flex; gap: 0.5rem; }

.input-form input[type="text"].error {
  border-color: var(--error-color);
}

.error-message {
  color: var(--error-color);
  font-size: 0.9rem;
  width: 100%;
  display: none; /* Hidden by default */
}

button, input[type="submit"] {
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.2s ease;
}

.btn-primary { background-color: var(--primary-color); color: white; }
.btn-primary:hover { background-color: #0056b3; }
.btn-secondary { background-color: #555; color: white; }
.btn-secondary:hover { background-color: #666; }

.autodetect-info { font-size: 0.9rem; color: #aaa; width: 100%; }

.results-container-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.results-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.results-grid.full-width-items {
  grid-column: 1 / -1; /* Span across all columns */
  grid-template-columns: 1fr;
  gap: 1rem;
}

.result-item {
  background-color: var(--input-bg);
  padding: 0.75rem 1rem;
  border-radius: 4px;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 1rem;
  position: relative;
}
.result-item label {
  font-weight: bold;
  color: var(--secondary-color);
  white-space: nowrap;
  width: 150px;
  flex-shrink: 0;
}
.result-item input, .result-item span { text-align: left; flex-grow: 1; }
.result-item span, .result-item input, .result-item textarea {
  font-family: 'Courier New', Courier, monospace;
  font-size: 1rem;
  color: var(--accent-color);
  background: none;
  border: none;
  width: 100%;
  resize: none;
}

.copyable {
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.copyable:hover {
  background-color: #e9ecef;
}
.copied {
  background-color: var(--success-color) !important;
  transition: background-color 0.1s ease-in-out;
}

.result-item.full-width {
  flex-direction: column;
  align-items: flex-start;
}

.result-item textarea { height: 120px; margin-top: 0.5rem; }

.sponsor-card a { color: var(--secondary-color); text-decoration: none; }
.sponsor-card a:hover { text-decoration: underline; }
.sponsor-card ul { padding-left: 20px; }

#results-container { display: none; }
#noscript-message { color: var(--accent-color); text-align: center; font-weight: bold; }

@media (max-width: 768px) {
  .results-container-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .lang-switcher { position: static; margin-bottom: 1rem; text-align: center; }
  .input-form { flex-direction: column; align-items: stretch; }
}