:root {
  --primary: #6d28d9;
  --primary-hover: #5b21b6;
  --secondary: #1e293b;
  --secondary-hover: #334155;
  --background: #0f172a;
  --surface: #1e293b;
  --surface-light: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border: #334155;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.light-mode {
  --primary: #7c3aed;
  --primary-hover: #6d28d9;
  --secondary: #e2e8f0;
  --secondary-hover: #cbd5e1;
  --background: #ffffff;
  --surface: #f1f5f9;
  --surface-light: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --border: #cbd5e1;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  transition: all 0.3s ease;
  line-height: 1.5;
}

.navbar {
  background-color: var(--surface);
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.logo-icon {
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.btn {
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

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

.btn.secondary {
  background-color: var(--secondary);
  color: var(--text-primary);
}

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

.btn.small {
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
}

.main-content {
  max-width: 1400px;
  margin: 2rem auto;
  padding: 0 2rem;
}

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

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

.generator-section {
  background-color: var(--surface);
  border-radius: 0.5rem;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--card-shadow);
}

.generator-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.prompt-input-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.input-group {
  position: relative;
}

textarea {
  width: 100%;
  padding: 1rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  background-color: var(--surface-light);
  color: var(--text-primary);
  font-family: inherit;
  resize: none;
  transition: all 0.2s;
}

textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(109, 40, 217, 0.2);
}

.input-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.model-selector select {
  padding: 0.375rem 0.75rem;
  border-radius: 0.25rem;
  background-color: var(--surface-light);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.generate-btn {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  align-self: flex-end;
}

.advanced-options {
  background-color: var(--surface-light);
  border-radius: 0.375rem;
  padding: 1rem;
}

.options-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.options-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.options-content {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.option-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.option-group label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.option-group select {
  padding: 0.375rem;
  border-radius: 0.25rem;
  background-color: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.option-group input[type="range"] {
  width: 100%;
}

.output-container {
  position: relative;
  min-height: 400px;
  background-color: var(--surface-light);
  border-radius: 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.output-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  color: var(--text-secondary);
}

.output-placeholder i {
  font-size: 3rem;
  opacity: 0.5;
}

.image-container {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.image-container img {
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.output-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  width: 100%;
  justify-content: center;
  flex-wrap: wrap;
}

.history-section {
  background-color: var(--surface);
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: var(--card-shadow);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.history-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.history-list li {
  background-color: var(--surface-light);
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

.history-list li:hover {
  background-color: var(--secondary);
}

.footer {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem 1.5rem;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
}

.link-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.link-group h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.link-group a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.link-group a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  color: var(--text-secondary);
  transition: color 0.2s;
}

.social-links a:hover {
  color: var(--text-primary);
}

@media (max-width: 1024px) {
  .hero h2 {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .navbar-container {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }
  .hero h2 {
    font-size: 1.75rem;
  }
  .options-content {
    grid-template-columns: 1fr;
  }
  .footer-links {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .main-content {
    padding: 0 1rem;
  }
}

.gallery-section {
  background-color: var(--surface);
  border-radius: 0.5rem;
  padding: 2rem;
  margin-top: 2.5rem;
  margin-bottom: 2rem;
  box-shadow: var(--card-shadow);
}

.gallery-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.gallery-item {
  position: relative;
  border-radius: 0.5rem;
  overflow: hidden;
  aspect-ratio: 1/1;
  background-color: var(--surface-light);
  transition: transform 0.2s;
}

.gallery-item:hover {
  transform: translateY(-5px);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.2s;
}

.gallery-item:hover img {
  opacity: 0.8;
}

.gallery-item-actions {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  padding: 1rem;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.gallery-item:hover .gallery-item-actions {
  opacity: 1;
}

.gallery-item-btn {
  background-color: rgba(255,255,255,0.2);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(5px);
  transition: background-color 0.2s;
}

.gallery-item-btn:hover {
  background-color: var(--primary);
}

.empty-gallery {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
}

.empty-gallery i {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

@media (max-width: 768px) {
  .gallery-container {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}