* {
  box-sizing: border-box;
}

:root {
  --prime-light: hsl(132, 11%, 91%);
  --prime-dark: hsl(86, 3%, 46%);

  --tone-light-1: color-mix(in srgb, var(--prime-light) 85%, var(--prime-dark) 15%);
  --tone-light-2: color-mix(in srgb, var(--prime-light) 70%, var(--prime-dark) 30%);
  --tone-light-3: color-mix(in srgb, var(--prime-light) 55%, var(--prime-dark) 45%);

  --tone-dark-1: color-mix(in srgb, var(--prime-dark) 85%, var(--prime-light) 15%);
  --tone-dark-2: color-mix(in srgb, var(--prime-dark) 75%, var(--prime-light) 25%);
  --tone-dark-3: color-mix(in srgb, var(--prime-dark) 60%, var(--prime-light) 40%);

  --space-l: 12px;
  --space-m: 8px;
  --space-s: 4px;
}

body {
  margin: 0;
  padding: var(--space-l);
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--theme-bg);
  color: var(--theme-text);
  min-height: 100vh;
}

body.theme-dark {
  --theme-bg: var(--prime-dark);
  --theme-surface: var(--tone-dark-1);
  --theme-surface-alt: var(--tone-dark-2);
  --theme-border: var(--tone-dark-3);
  --theme-text: var(--prime-light);
  --theme-text-muted: var(--tone-light-2);
  --theme-text-subtle: var(--tone-light-3);
  --theme-button-bg: var(--prime-light);
  --theme-button-text: var(--prime-dark);
  --theme-button-muted: var(--tone-light-2);
  --theme-button-muted-text: var(--prime-dark);
}

body.theme-light {
  --theme-bg: var(--prime-light);
  --theme-surface: var(--tone-light-1);
  --theme-surface-alt: var(--tone-light-2);
  --theme-border: var(--tone-light-3);
  --theme-text: var(--prime-dark);
  --theme-text-muted: var(--tone-dark-2);
  --theme-text-subtle: var(--tone-dark-3);
  --theme-button-bg: var(--prime-dark);
  --theme-button-text: var(--prime-light);
  --theme-button-muted: var(--tone-dark-2);
  --theme-button-muted-text: var(--prime-light);
}

.main-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-l);
  height: calc(100vh - 2 * var(--space-l));
  min-height: 600px;
}

/* Preview Pane */
.preview-pane {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  background: var(--theme-surface);
  padding: var(--space-l);
  gap: var(--space-l);
}

.paper-canvas-container {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: var(--space-s);
  border: 1px solid var(--prime-dark);
  overflow: hidden;
  min-height: 100px;
  width: fit-content;
  max-width: 100%;
  background: var(--prime-light);
}

.canvas-wrapper {
  width: 100%;
  max-width: 100%;
  height: 100%;
  aspect-ratio: var(--canvas-aspect, 1);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.canvas-wrapper canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--prime-light);
}

.canvas-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-s);
}

.upload-text {
  font-family: 'Geist', sans-serif;
  font-weight: 300;
  font-size: 14px;
  margin: 0;
  color: var(--theme-text);
}

.upload-link {
  text-decoration: underline;
  cursor: pointer;
  text-decoration-skip-ink: none;
  text-underline-position: from-font;
}

.upload-link:hover {
  color: var(--theme-text-muted);
}

.copy-svg-btn {
  background: var(--theme-button-bg);
  color: var(--theme-button-text);
  border: none;
  border-radius: 9999px;
  padding: 4px 12px;
  font-family: 'Geist', sans-serif;
  font-weight: 300;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.copy-svg-btn:hover {
  background: var(--theme-button-muted);
  color: var(--theme-button-muted-text);
}

/* Controls Panel */
.controls-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-l);
  overflow-y: auto;
  max-height: 50vh;
}

.control-section {
  background: var(--theme-surface);
  padding: var(--space-l);
  display: flex;
  flex-direction: column;
  gap: var(--space-m);
  flex-shrink: 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.view-controls {
  display: flex;
  align-items: center;
  gap: var(--space-m);
}

.control-section h2 {
  font-family: 'Geist', sans-serif;
  font-weight: 200;
  font-size: 32px;
  line-height: 1;
  margin: 0;
  color: var(--theme-text);
  letter-spacing: -1.5px;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-m);
}

/* Slider Controls */
.slider-controls {
  display: flex;
  gap: var(--space-m);
}

.slider-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
}

.slider-group label {
  font-family: 'Geist', sans-serif;
  font-weight: 300;
  font-size: 14px;
  color: var(--theme-text);
  margin: 0;
}

.slider-group input[type="range"] {
  width: 100%;
  height: 8px;
  background: var(--theme-surface-alt);
  border-radius: 999px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.slider-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--theme-button-bg);
  cursor: pointer;
  border: none;
}

.slider-group input[type="range"]::-moz-range-thumb {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--theme-button-bg);
  cursor: pointer;
  border: none;
}

/* Number Controls */
.number-control {
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
}

.number-control label {
  font-family: 'Geist', sans-serif;
  font-weight: 300;
  font-size: 14px;
  color: var(--theme-text);
  margin: 0;
}

.number-input {
  display: flex;
  align-items: center;
  background: var(--theme-surface-alt);
  border-radius: 4px;
  height: 24px;
  padding: 0;
  width: 100%;
  overflow: hidden;
}


.select-control {
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
  min-width: 0;
}

.select-control label {
  font-family: 'Geist', sans-serif;
  font-weight: 300;
  font-size: 14px;
  color: var(--theme-text);
  margin: 0;
}

.select-input {
  display: flex;
  align-items: center;
  background: var(--theme-surface-alt);
  border-radius: 4px;
  height: 24px;
  padding: 0 var(--space-m);
}

.select-input select {
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
  color: var(--theme-text);
  font-family: 'Geist Mono', monospace;
  font-weight: 300;
  font-size: 12px;
  cursor: pointer;
  appearance: none;
  padding: 0;
}

/* Make all control inputs use mono font */
.controls-panel input,
.controls-panel select,
.controls-panel textarea {
  font-family: 'Geist Mono', monospace;
}

.select-input select:focus {
  outline: none;
}

.select-input select option {
  background: var(--theme-surface);
  color: var(--theme-text);
}

.number-btn {
  background: var(--theme-surface-alt);
  border: none;
  color: var(--theme-text);
  font-family: 'Geist Mono', monospace;
  font-weight: 300;
  font-size: 12px;
  cursor: pointer;
  padding: 0;
  flex: 0 0 28px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.number-input input {
  flex: 1 1 auto;
  min-width: 0;
  background: none;
  border: none;
  color: var(--theme-text);
  font-family: 'Geist Mono', monospace;
  font-weight: 300;
  font-size: 12px;
  text-align: center;
  outline: none;
  padding: 0 4px;
}

.number-input input::-webkit-outer-spin-button,
.number-input input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.number-input input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}

/* Vector Controls Row */
.vector-controls-row {
  display: flex;
  gap: var(--space-m);
}

.vector-controls-row .number-control {
  flex: 1;
}

.vector-controls-row .select-control {
  flex: 1;
}

/* Stroke Levels */
.stroke-levels {
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
}

.stroke-levels label {
  font-family: 'Geist', sans-serif;
  font-weight: 300;
  font-size: 14px;
  color: var(--theme-text);
  margin: 0;
}

.stroke-weights {
  display: flex;
  gap: var(--space-m);
  flex-wrap: wrap;
}

.stroke-weights .number-control {
  flex: 1 1 150px;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.stroke-weights .number-input {
  width: 100%;
}

/* View Toggle */
.view-toggle {
  background: none;
  border: none;
  color: var(--theme-text-subtle);
  cursor: pointer;
  border-radius: 4px;
  transition: color 0.2s ease, background 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.view-toggle:hover {
  color: var(--theme-text);
  background: none;
}

.view-toggle .eye-closed {
  display: none;
}

.view-toggle.is-raster {
  background: none;
  color: var(--theme-button-text);
}

.view-toggle.is-raster .eye-open {
  display: none;
}

.view-toggle.is-raster .eye-closed {
  display: block;
}

.checkbox-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--theme-text-muted);
  font-family: 'Geist', sans-serif;
  font-weight: 300;
  font-size: 12px;
  user-select: none;
}

.checkbox-control input[type="checkbox"] {
  width: 14px;
  height: 14px;
  accent-color: var(--theme-button-bg);
  cursor: pointer;
}

/* Theme Toggle */
.page-footer {
  max-width: 1200px;
  margin: var(--space-l) auto 0;
  padding: var(--space-m) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-l);
  color: var(--theme-text-muted);
  border-top: 1px solid var(--theme-border);
}

.footer-credit {
  font-family: 'Geist Mono', monospace;
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.4px;
}

.theme-toggle {
  background: var(--theme-button-bg);
  color: var(--theme-button-text);
  border: none;
  border-radius: 50%;
  width: 26px;
  height: 26px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, color 0.2s ease;
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
}

.theme-toggle .icon-moon {
  display: none;
}

.theme-toggle.is-light .icon-sun {
  display: none;
}

.theme-toggle.is-light .icon-moon {
  display: block;
}

.theme-toggle:hover {
  background: var(--theme-button-muted);
  color: var(--theme-button-muted-text);
}

/* Responsive Design */
@media (max-width: 768px) {
  body {
    padding: var(--space-l);
  }

  .main-container {
    gap: var(--space-l);
  }

  .preview-pane,
  .control-section {
    padding: var(--space-l);
  }

  .control-section h2 {
    font-size: 24px;
    letter-spacing: -1.2px;
    text-box-trim: trim-start;
    text-box-edge: cap alphabetic;
  }

}
/* Decorative SVG styling */
.footer-graphic {
  display: block;
  width: 100%;
  margin: 0 auto;
  background-color: var(--theme-text);
  transform-origin: 05% 50%;
}

.footer-graphic-track {
  animation: footer-pan 18s linear infinite;
  transform-box: fill-box;
  transform-origin: 0 50%;
  will-change: transform;
}

@keyframes footer-pan {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(1008px);
  }
}

svg path[fill="#111111"] {
  fill: var(--theme-surface); /* or any color you want */
}