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

:root {
  --bg-primary: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #252525;
  --text-primary: #e5e5e5;
  --text-secondary: #a0a0a0;
  --accent: #ff9ac5;
  --accent-secondary: #e6528b;
  --border-color: #333;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem;
}

/* Header */
.appHeader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.appHeader h1 {
  font-size: 1.5rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.downloadBtn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  color: #0f0f0f;
  border: none;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
}

.downloadBtn:hover:not(:disabled) {
  opacity: 0.9;
  transform: translateY(-1px);
}

.downloadBtn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Upload Zone */
.uploadZone {
  border: 2px dashed var(--border-color);
  border-radius: 12px;
  padding: 4rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
}

.uploadZone:hover,
.uploadZone.dragover {
  border-color: var(--accent);
  background-color: rgba(255, 154, 197, 0.05);
}

.uploadContent {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.uploadIcon {
  width: 64px;
  height: 64px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.uploadZone:hover .uploadIcon {
  color: var(--accent);
}

.uploadText {
  font-size: 1.125rem;
  color: var(--text-primary);
}

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

/* Preview Container */
.previewContainer {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.previewContainer.hidden {
  display: none;
}

/* Controls Bar */
.controlsBar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem;
  background-color: var(--bg-secondary);
  border-radius: 10px;
  align-items: center;
}

.controlGroup {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.controlGroup label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.controlGroup select {
  padding: 0.5rem 0.75rem;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.875rem;
  cursor: pointer;
  transition: border-color 0.2s;
}

.controlGroup select:hover,
.controlGroup select:focus {
  border-color: var(--accent);
  outline: none;
}

.regenerateBtn,
.changeImageBtn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.875rem;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
}

.regenerateBtn:hover,
.changeImageBtn:hover {
  border-color: var(--accent);
  background-color: rgba(255, 154, 197, 0.1);
}

/* Canvas Wrapper */
.canvasWrapper {
  display: flex;
  justify-content: center;
  background-color: var(--bg-secondary);
  border-radius: 10px;
  padding: 1rem;
  overflow: hidden;
}

#canvas {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}