/* Add CSS Variables for both light and dark themes */
:root {
  --primary-color: #2a6b9c;
  --secondary-color: #3498db;
  --background-color: #f5f6fa;
  --text-color: #2c3e50;
  --container-bg: white;
  --border-color: #e0e0e0;
  --input-bg: white;
  --box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  --prompt-bg: #f8f9fa;
  --additional-info-bg: #e8f4f8;
  --phase-bg: white;
  --tech-tag-bg: white;
}

[data-theme="dark"] {
  --primary-color: #4a9eda;
  --secondary-color: #64b5f6;
  --background-color: #1a1a1a;
  --text-color: #e0e0e0;
  --container-bg: #2d2d2d;
  --border-color: #404040;
  --input-bg: #333333;
  --box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
  --prompt-bg: #333333;
  --additional-info-bg: #2a3f4a;
  --phase-bg: #333333;
  --tech-tag-bg: #333333;
}

/* Theme toggle button styles */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
}

#darkModeToggle {
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--container-bg);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  transition: background-color 0.3s ease;
}

#darkModeToggle:hover {
  background-color: var(--border-color);
}

.sun-icon,
.moon-icon {
  width: 24px;
  height: 24px;
  fill: var(--text-color);
}

[data-theme="dark"] .sun-icon {
  display: none;
}

[data-theme="light"] .moon-icon {
  display: none;
}

/* Update existing styles with CSS variables */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--background-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 800px;
  margin: 2rem auto;
  padding: 2rem;
  background: var(--container-bg);
  border-radius: 10px;
  box-shadow: var(--box-shadow);
}

h1 {
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 2rem;
}

.input-section {
  margin-bottom: 2rem;
}

textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  resize: vertical;
  font-size: 1rem;
  margin-bottom: 1rem;
  background-color: var(--input-bg);
  color: var(--text-color);
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

textarea:focus {
  outline: none;
  border-color: var(--secondary-color);
}

select, input[type="text"] {
  background-color: var(--input-bg);
  color: var(--text-color);
  border-color: var(--border-color);
}

.options {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.options label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--text-color);
}

button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: var(--secondary-color);
}

.output-section {
  background-color: var(--prompt-bg);
  padding: 1.5rem;
  border-radius: 8px;
  margin-top: 2rem;
}

.prompt-box {
  background: var(--container-bg);
  padding: 1rem;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  margin-bottom: 1rem;
  white-space: pre-wrap;
  line-height: 1.5;
}

.prompt-box strong {
  color: var(--primary-color);
}

.copy-btn {
  background-color: #6c757d;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.copy-btn:hover {
  background-color: #5a6268;
}

.loading-spinner {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.8);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.spinner {
  width: 50px;
  height: 50px;
  animation: rotate 2s linear infinite;
}

.path {
  stroke: var(--primary-color);
  stroke-linecap: round;
  animation: dash 1.5s ease-in-out infinite;
}

@keyframes rotate {
  100% {
    transform: rotate(360deg);
  }
}

@keyframes dash {
  0% {
    stroke-dasharray: 1, 150;
    stroke-dashoffset: 0;
  }
  50% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -35;
  }
  100% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -124;
  }
}

.dimension-options, .device-options {
  display: flex;
  gap: 1rem;
  padding: 0.5rem;
  background-color: var(--container-bg);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  margin: 0.5rem 0;
  justify-content: flex-start;
}

.dimension-options label, .device-options label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
  transition: background-color 0.2s ease;
  min-width: 70px;
  color: var(--text-color);
}

.dimension-options label:hover, .device-options label:hover {
  background-color: var(--border-color);
}

.theme-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--container-bg);
  border: 1px solid var(--border-color);
  padding: 0.5rem;
  border-radius: 5px;
  margin: 0.5rem 0;
  color: var(--text-color);
}

.theme-selector select {
  padding: 0.3rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--input-bg);
  font-size: 0.9rem;
  cursor: pointer;
}

.theme-selector select:focus {
  outline: none;
  border-color: var(--secondary-color);
}

.theme-selector label {
  font-weight: 500;
  min-width: 60px;
}

.theme-selector input[type="text"] {
  padding: 0.3rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--input-bg);
  font-size: 0.9rem;
  margin-left: 0.5rem;
  width: 150px;
}

.theme-selector input[type="text"]:focus {
  outline: none;
  border-color: var(--secondary-color);
}

.model-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  border-radius: 5px;
  margin: 0.5rem 0;
  width: 100%;
}

.model-selector label {
  font-weight: 500;
  min-width: 80px;
}

.model-selector select {
  padding: 0.3rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--input-bg);
  font-size: 0.9rem;
  cursor: pointer;
  flex-grow: 1;
}

.model-selector select:focus {
  outline: none;
  border-color: var(--secondary-color);
}

.credits {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-color);
  font-size: 0.9rem;
}

.credits a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.credits a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

.additional-info {
  background-color: var(--additional-info-bg);
  padding: 1rem;
  border-radius: 5px;
  margin: 1rem 0;
  border-left: 4px solid var(--primary-color);
}

.additional-info h3 {
  color: var(--primary-color);
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.additional-info ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.additional-info li {
  margin: 0.3rem 0;
  display: flex;
  align-items: flex-start;
}

.additional-info li strong {
  min-width: 180px;
  color: var(--text-color);
  opacity: 0.8;
}

.tech-section {
  margin: 1rem 0;
}

.tech-section h4 {
  color: var(--primary-color);
  margin: 0.5rem 0;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 0.5rem;
}

.tech-tag {
  display: flex;
  flex-direction: column;
  padding: 0.5rem;
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--tech-tag-bg);
  border: 2px solid;
}

.tech-tag.essential {
  border-color: #2ecc71;
  background: #f1fff8;
}

.tech-tag.recommended {
  border-color: #3498db;
  background: #f1f9ff;
}

.tech-tag.optional {
  border-color: #95a5a6;
  background: #f8f9f9;
}

[data-theme="dark"] .tech-tag.essential {
  background: rgba(46, 204, 113, 0.1);
}

[data-theme="dark"] .tech-tag.recommended {
  background: rgba(52, 152, 219, 0.1);
}

[data-theme="dark"] .tech-tag.optional {
  background: rgba(149, 165, 166, 0.1);
}

.tech-name {
  font-weight: bold;
  color: var(--text-color);
}

.tech-tag .tech-purpose {
  font-size: 0.8rem;
  color: var(--text-color);
  opacity: 0.7;
}

.metadata-section {
  margin-top: 1.5rem;
}

.metadata-item {
  margin: 1rem 0;
}

.metadata-item strong {
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.3rem;
}

.optimization-list {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

.optimization-list li {
  margin: 0.3rem 0;
  color: var(--text-color);
  opacity: 0.8;
}

.phases-list {
  margin-top: 0.5rem;
}

.phase {
  background: var(--phase-bg);
  padding: 0.8rem;
  border-radius: 6px;
  margin: 0.5rem 0;
  border: 1px solid var(--border-color);
}

.phase h5 {
  margin: 0 0 0.5rem 0;
  color: var(--primary-color);
}

.phase ul {
  margin: 0;
  padding-left: 1.5rem;
}

.phase li {
  margin: 0.2rem 0;
  color: var(--text-color);
  opacity: 0.8;
}

.language-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  border-radius: 5px;
  margin: 0.5rem 0;
  width: 100%;
}

.language-selector label {
  font-weight: 500;
  min-width: 130px;
  color: var(--text-color);
}

.language-selector select {
  padding: 0.3rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--input-bg);
  font-size: 0.9rem;
  cursor: pointer;
  flex-grow: 1;
  color: var(--text-color);
}

.language-selector select:focus {
  outline: none;
  border-color: var(--secondary-color);
}