/* heightmap3d.css */
/* Styles for the 3D Heightmap Generator page */

.heightmap-container {
  padding: 2rem;
  min-height: 100vh;
  background: var(--bg-gradient);
}

.heightmap-header {
  margin-bottom: 2rem;
}

.heightmap-header h1 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  color: var(--dark);
  font-size: 2rem;
  font-weight: 700;
}

.heightmap-header p {
  margin: 0.5rem 0 0 0;
  color: var(--secondary);
  font-size: 1rem;
}

.upload-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem;
  border: 2px dashed var(--glass-border);
  border-radius: var(--border-radius);
  background-color: rgba(79, 70, 229, 0.05);
  cursor: pointer;
  transition: all 0.3s ease;
}

.upload-area:hover,
.upload-area.active {
  border-color: #4f46e5;
  background-color: rgba(79, 70, 229, 0.1);
}

.upload-icon {
  font-size: 48px;
  color: #4f46e5;
  opacity: 0.7;
}

.upload-text {
  text-align: center;
}

.upload-text-main {
  margin: 0 0 0.5rem 0;
  font-weight: 600;
  color: var(--dark);
}

.upload-text-sub {
  margin: 0;
  font-size: 0.875rem;
  color: var(--secondary);
}

.file-input-label {
  padding: 0.75rem 1.5rem;
  background-color: #4f46e5;
  color: white;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s ease;
}

.file-input-label:hover {
  background-color: #3730a3;
}

.upload-status {
  margin-top: 1rem;
  padding: 1rem;
  background-color: rgba(79, 70, 229, 0.1);
  border-radius: var(--border-radius);
}

.upload-status p {
  margin: 0;
  color: var(--dark);
  font-weight: 600;
}

.loading-state {
  margin-top: 1rem;
  padding: 1rem;
  text-align: center;
  color: #666;
}

.loading-spinner {
  animation: spin 1s linear infinite;
  margin-bottom: 0.5rem;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.error-state {
  margin-top: 1rem;
  padding: 1rem;
  background-color: #fee2e2;
  border: 1px solid #fecaca;
  border-radius: var(--border-radius);
  color: #991b1b;
}

.error-state p {
  margin: 0;
  font-weight: 600;
}

.success-state {
  margin-top: 1rem;
  padding: 1rem;
  background-color: #dcfce7;
  border: 1px solid #bbf7d0;
  border-radius: var(--border-radius);
  color: #166534;
}

.success-state p {
  margin: 0;
  font-weight: 600;
}

.canvas-container {
  height: 700px;
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.model-info-grid {
  margin-top: 1.5rem;
  padding: 1rem;
  background-color: var(--light);
  border-radius: var(--border-radius);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.model-info-item {
  display: flex;
  flex-direction: column;
}

.model-info-label {
  margin: 0;
  font-size: 0.875rem;
  color: var(--secondary);
}

.model-info-value {
  margin: 0.25rem 0 0 0;
  font-weight: 600;
  color: var(--dark);
}

.model-actions {
  margin-top: 1.5rem;
  display: flex;
  gap: 1rem;
}

.btn-primary {
  padding: 0.75rem 1.5rem;
  background-color: #4f46e5;
  color: white;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.3s ease;
}

.btn-primary:hover {
  background-color: #3730a3;
}

.btn-secondary {
  padding: 0.75rem 1.5rem;
  background-color: transparent;
  color: #4f46e5;
  border: 2px solid #4f46e5;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background-color: #f8f9ff;
}

/* ================================================ */
/* MOBILE RESPONSIVE STYLES - HEIGHTMAP 3D         */
/* ================================================ */

/* Small devices (< 480px) */
@media (max-width: 479px) {
  .heightmap-container {
    padding: 1rem;
  }

  .heightmap-header h1 {
    font-size: 1.5rem;
    gap: 0.5rem;
  }

  .heightmap-header p {
    font-size: 0.9rem;
  }

  .upload-area {
    padding: 1.5rem 1rem;
    gap: 1rem;
    border-width: 1px;
  }

  .upload-icon {
    font-size: 36px;
  }

  .upload-text-main {
    font-size: 0.95rem;
  }

  .upload-text-sub {
    font-size: 0.75rem;
  }

  .file-input-label {
    padding: 0.65rem 1rem;
    font-size: 0.9rem;
    width: 100%;
  }

  .canvas-container {
    height: 300px;
    margin: 1rem 0;
  }

  .model-info-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    padding: 0.75rem;
    margin-top: 1rem;
  }

  .model-info-label {
    font-size: 0.75rem;
  }

  .model-info-value {
    font-size: 0.95rem;
  }

  .model-actions {
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
  }

  .btn-primary,
  .btn-secondary {
    padding: 0.65rem 1rem;
    font-size: 0.9rem;
    width: 100%;
  }

  .upload-status,
  .loading-state,
  .error-state,
  .success-state {
    padding: 0.75rem;
    margin-top: 0.75rem;
  }

  .upload-status p,
  .error-state p,
  .success-state p {
    font-size: 0.85rem;
  }
}

/* Medium devices (480px - 768px) */
@media (min-width: 480px) and (max-width: 767px) {
  .heightmap-container {
    padding: 1.5rem;
  }

  .heightmap-header h1 {
    font-size: 2rem;
  }

  .upload-area {
    padding: 1.75rem;
    gap: 1.25rem;
  }

  .upload-icon {
    font-size: 40px;
  }

  .canvas-container {
    height: 400px;
  }

  .model-info-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .model-actions {
    flex-direction: column;
    gap: 1rem;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
  }
}

/* Large devices (768px - 1024px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .heightmap-container {
    padding: 2rem;
  }

  .heightmap-header h1 {
    font-size: 2.5rem;
  }

  .canvas-container {
    height: 500px;
  }

  .model-info-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .model-actions {
    flex-direction: row;
    gap: 1rem;
  }
}

/* XL devices (1024px+) */
@media (min-width: 1024px) {
  .heightmap-container {
    padding: 2rem;
  }

  .canvas-container {
    height: 700px;
  }

  .model-actions {
    justify-content: flex-start;
  }
}

/* Landscape orientation optimization */
@media (orientation: landscape) and (max-height: 600px) {
  .heightmap-container {
    padding: 1rem;
  }

  .heightmap-header {
    margin-bottom: 1rem;
  }

  .heightmap-header h1 {
    font-size: 1.5rem;
  }

  .canvas-container {
    height: 350px;
    margin: 0.75rem 0;
  }

  .model-info-grid {
    gap: 0.5rem;
    padding: 0.5rem;
  }

  .model-actions {
    gap: 0.5rem;
  }

  .btn-primary,
  .btn-secondary {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }
}

.btn-secondary {
  padding: 0.75rem 1.5rem;
  background-color: #e5e7eb;
  color: var(--dark);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.3s ease;
}

.btn-secondary:hover {
  background-color: #d1d5db;
}

.features-section {
  margin-top: 3rem;
  padding: 2rem;
  background-color: var(--light);
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
}

.features-section h3 {
  margin: 0 0 1rem 0;
  color: var(--dark);
  font-size: 1.25rem;
  font-weight: 600;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.feature-item {
  display: flex;
  flex-direction: column;
}

.feature-title {
  margin: 0;
  font-weight: 600;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-description {
  margin: 0.5rem 0 0 0;
  font-size: 0.875rem;
  color: var(--secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
  .heightmap-header h1 {
    font-size: 1.5rem;
  }

  .upload-area {
    padding: 1.5rem;
  }

  .canvas-container {
    height: 400px;
  }

  .model-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* Accessibility */
.file-input-label:focus,
.btn-primary:focus,
.btn-secondary:focus {
  outline: 2px solid #4f46e5;
  outline-offset: 2px;
}

/* Canvas Styling */
canvas {
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}