:root {
  --background-color: #121212;
  --surface-color: #1e1e1e;
  --primary-color: #bb86fc;
  --on-surface-color: #e0e0e0;
  --on-primary-color: #000;
  --error-color: #cf6679;
  --record-color: #ff4d4d;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--background-color);
  color: var(--on-surface-color);
  margin: 0;
  padding: 2rem;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  box-sizing: border-box;
}

#app {
  width: 100%;
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  text-align: center;
}

h1 {
  margin-top: 0;
  color: var(--primary-color);
}

.camera-container {
  position: relative;
  width: 100%;
  max-width: 640px;
  background-color: var(--surface-color);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  aspect-ratio: 16 / 9;
  display: flex;
  justify-content: center;
  align-items: center;
}

#canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 8px;
}

.controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem;
  background-color: var(--surface-color);
  border-radius: 8px;
  width: 100%;
  max-width: 640px;
  box-sizing: border-box;
}

.camera-selector-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 80%;
  justify-content: center;
  margin-bottom: 1rem;
}

#camera-select {
  flex-grow: 1;
  padding: 8px;
  font-size: 0.9rem;
  border-radius: 4px;
  border: 1px solid #333;
  background-color: var(--surface-color);
  color: var(--on-surface-color);
  cursor: pointer;
}

#camera-select:focus {
    outline: 2px solid var(--primary-color);
    border-color: var(--primary-color);
}

#camera-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

label {
  font-size: 1rem;
}

#zoom-slider {
  width: 80%;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  height: 8px;
  background: #333;
  border-radius: 4px;
  outline: none;
}

#zoom-slider:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#zoom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 50%;
  cursor: pointer;
}

#zoom-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

.button-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

#capture-button,
#switch-camera-button,
#save-button,
#record-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: bold;
  border-radius: 24px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease, color 0.2s ease, border-color 0.2s ease;
  border: none;
  white-space: nowrap;
}

#capture-button:disabled,
#switch-camera-button:disabled,
#record-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}


#capture-button:active,
#switch-camera-button:active,
#save-button:active,
#record-button:active {
  transform: scale(0.95);
}

#capture-button,
#save-button {
  color: var(--on-primary-color);
  background-color: var(--primary-color);
}

#capture-button:hover,
#save-button:hover {
  background-color: #a052f0;
}

#capture-button svg,
#save-button svg {
  stroke: var(--on-primary-color);
}

#switch-camera-button,
#record-button {
  color: var(--primary-color);
  background-color: transparent;
  border: 2px solid var(--primary-color);
  padding: 10px 22px; /* Adjust padding due to border */
}

#switch-camera-button:hover,
#record-button:hover {
  background-color: rgba(187, 134, 252, 0.1);
}

#switch-camera-button svg,
#record-button svg {
  stroke: var(--primary-color);
}

#record-button.recording {
  background-color: var(--record-color);
  border-color: var(--record-color);
  color: var(--on-surface-color);
}

#record-button.recording svg {
  stroke: var(--on-surface-color);
}


.gallery {
  width: 100%;
  max-width: 640px;
  margin-top: 1rem;
  background-color: var(--surface-color);
  border-radius: 8px;
  padding: 1rem;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

#photo, #recorded-video {
  max-width: 100%;
  border-radius: 4px;
  border: 2px solid #333;
}

.error {
  color: var(--error-color);
  background-color: rgba(207, 102, 121, 0.1);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--error-color);
}

@media (max-width: 600px) {
  body {
    padding: 1rem;
  }

  h1 {
    font-size: 1.5rem;
  }
}