:root {
  --cosmic-bg: #fff;
  --cosmic-border: rgba(0, 0, 0, 0.06);
  --cosmic-text: #0f172a;
  --cosmic-text-muted: #4b5563;
  --cosmic-input-border: rgba(0, 0, 0, 0.1);
  --cosmic-divider: rgba(0, 0, 0, 0.08);
  --cosmic-canvas-bg: #fdfdfd;
  --cosmic-highlight: #ec4899;
  --cosmic-number-color: #0f172a;
}

.theme-dark {
  --cosmic-bg: #030712;
  --cosmic-border: rgba(255, 255, 255, 0.05);
  --cosmic-text: #f3f4f6;
  --cosmic-text-muted: #d1d5db;
  --cosmic-input-border: rgba(255, 255, 255, 0.15);
  --cosmic-divider: rgba(255, 255, 255, 0.08);
  --cosmic-canvas-bg: #090d16;
  --cosmic-highlight: #f472b6;
  --cosmic-number-color: #fff;
}

.cosmic-calculator-root {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 1.5rem;
  background: var(--cosmic-bg);
  color: var(--cosmic-text);
  border-radius: 2rem;
  border: 1px solid var(--cosmic-border);
  max-width: 960px;
  margin: 0 auto;
}

@media (min-width: 769px) {
  .cosmic-calculator-root {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "presets presets"
      "controls results"
      "chart chart";
    gap: 3rem;
    padding: 2.5rem;
  }
}

.cosmic-presets {
  display: flex;
  gap: 1rem;
  border-bottom: 1px solid var(--cosmic-divider);
  padding-bottom: 0.25rem;
}

@media (min-width: 769px) {
  .cosmic-presets {
    grid-area: presets;
    gap: 2rem;
  }
}

.cosmic-preset-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--cosmic-text);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.2s;
  padding: 10px 16px;
  opacity: 0.5;
}

.cosmic-preset-btn:hover {
  opacity: 1;
}

.cosmic-preset-btn.active {
  opacity: 1;
  border-bottom-color: var(--cosmic-highlight);
  color: var(--cosmic-text);
}

.cosmic-controls-section {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 769px) {
  .cosmic-controls-section {
    grid-area: controls;
  }
}

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

.cosmic-input-group label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cosmic-text-muted);
}

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

.cosmic-input-val {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--cosmic-highlight);
}

.cosmic-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--cosmic-input-border);
  outline: none;
  border-radius: 2px;
  padding: 12px 0;
  background-clip: content-box;
  cursor: pointer;
}

.cosmic-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--cosmic-highlight);
  cursor: pointer;
  transition: transform 0.1s;
  margin-top: -7px;
}

.cosmic-slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 4px;
  border-radius: 2px;
}

.cosmic-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.cosmic-tooltip {
  font-size: 0.7rem;
  color: var(--cosmic-text-muted);
  line-height: 1.4;
  margin-top: 0.25rem;
  opacity: 0.9;
}

@media (max-width: 768px) {
  .cosmic-tooltip {
    display: none;
  }
}

.cosmic-results-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 769px) {
  .cosmic-results-section {
    grid-area: results;
    gap: 2rem;
  }
}

.cosmic-divider-line {
  height: 1px;
  background-color: var(--cosmic-divider);
  width: 100%;
}

@media (max-width: 768px) {
  .cosmic-results-section .cosmic-divider-line {
    display: none;
  }
}

.cosmic-result-block {
  display: flex;
  flex-direction: column;
}

.cosmic-result-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--cosmic-text-muted);
  margin-bottom: 0.25rem;
}

.cosmic-result-number {
  font-size: clamp(2rem, 7vw, 3rem);
  font-weight: 200;
  line-height: 1.1;
  color: var(--cosmic-number-color);
  letter-spacing: -0.03em;
}

.cosmic-analogy {
  font-size: 0.85rem;
  color: var(--cosmic-text-muted);
  margin-top: 0.75rem;
  line-height: 1.5;
  opacity: 0.95;
}

.cosmic-analogy .highlight {
  color: var(--cosmic-highlight);
  font-weight: 600;
}

.cosmic-chart-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 769px) {
  .cosmic-chart-section {
    grid-area: chart;
  }
}

.cosmic-chart-section h3 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--cosmic-text-muted);
  margin: 0;
}

.cosmic-canvas-container {
  position: relative;
  width: 100%;
  height: 240px;
  background: var(--cosmic-canvas-bg);
  border-radius: 1.5rem;
  border: 1px solid var(--cosmic-border);
  overflow: hidden;
}

@media (min-width: 769px) {
  .cosmic-canvas-container {
    height: 320px;
  }
}

.cosmic-canvas-container canvas {
  width: 100%;
  height: 100%;
  display: block;
}