* { margin: 0; padding: 0; box-sizing: border-box; }
  body {
    background: #1a1a1a;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    overflow-y: auto;
    font-family: 'Segoe UI', system-ui, sans-serif;
    user-select: none;
    padding: 40px 0;
  }
  h1 {
    color: #c2a67d;
    font-weight: 300;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    font-size: 20px;
    margin-bottom: 16px;
    opacity: 0.7;
  }
  canvas {
    display: block;
    cursor: none;
    box-shadow: 0 0 60px rgba(0,0,0,0.5);
  }
  .controls {
    margin-top: 16px;
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 800px;
  }
  button {
    background: none;
    border: 1px solid #5a4a35;
    color: #c2a67d;
    padding: 6px 18px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
  }
  button:hover { background: #5a4a35; color: #e8d5b7; }
  button.active { background: #5a4a35; color: #e8d5b7; }

  .size-controls { display: flex; align-items: center; gap: 8px; }
  .size-controls span { color: #c2a67d; font-size: 12px; letter-spacing: 0.1em; font-weight: 500; }
  input[type="range"] {
    -webkit-appearance: none;
    width: 100px;
    height: 3px;
    background: #5a4a35;
    border-radius: 2px;
    outline: none;
  }
  input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px; height: 12px;
    background: #c2a67d;
    border-radius: 50%;
    cursor: pointer;
  }
  .tine-controls { display: flex; align-items: center; gap: 8px; }
  .tine-controls span { color: #c2a67d; font-size: 12px; letter-spacing: 0.1em; font-weight: 500; }
  .tine-controls .tine-label { color: #c2a67d; min-width: 8px; text-align: center; }
  .info-i {
    display: inline-flex; align-items: center; justify-content: center;
    width: 13px; height: 13px; border-radius: 50%;
    border: 1px solid #5a4a3566; color: #5a4a3588;
    font-size: 9px; font-style: italic; font-family: Georgia, serif;
    cursor: default; position: relative; flex-shrink: 0;
  }
  .info-i .info-tip {
    display: none; position: absolute; bottom: 20px; left: 50%;
    transform: translateX(-50%); white-space: nowrap;
    background: #2a2218; color: #c2a67dcc; font-style: normal;
    font-family: 'Segoe UI', system-ui, sans-serif;
    font-size: 11px; padding: 4px 8px; border-radius: 4px;
    pointer-events: none; letter-spacing: 0.02em; z-index: 10;
  }
  .info-i:hover .info-tip { display: block; }

  /* Custom Checkbox Toggle */
  .toggle-switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 18px;
    margin-left: 4px;
  }
  .toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
  }
  .toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #2a2218;
    border: 1px solid #5a4a35;
    transition: .4s;
    border-radius: 18px;
  }
  .toggle-slider:before {
    position: absolute;
    content: "";
    height: 12px;
    width: 12px;
    left: 2px;
    bottom: 2px;
    background-color: #5a4a35;
    transition: .4s;
    border-radius: 50%;
  }
  input:checked + .toggle-slider {
    background-color: #5a4a35;
  }
  input:checked + .toggle-slider:before {
    transform: translateX(18px);
    background-color: #c2a67d;
  }

  /* Tabs */
  .tabs {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
    border-bottom: 1px solid #5a4a3544;
  }
  .tab-btn {
    background: none;
    border: none;
    color: #5a4a35;
    padding: 8px 12px;
    font-size: 12px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.3s;
    border-bottom: 2px solid transparent;
  }
  .tab-btn:hover { opacity: 1; color: #c2a67d; }
  .tab-btn.active {
    opacity: 1;
    color: #c2a67d;
    border-bottom: 2px solid #c2a67d;
  }
  .tab-content { display: none; }
  .tab-content.active { display: block; }

  /* Mirror toggle buttons */
  .mirror-controls {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .mirror-controls span {
    color: #c2a67d;
    font-size: 12px;
    letter-spacing: 0.1em;
    font-weight: 500;
  }
  .mirror-btn {
    width: 28px;
    height: 28px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #2a2218;
    border: 1px solid #5a4a35;
    color: #5a4a35;
    font-size: 16px;
    line-height: 1;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0;
    text-transform: none;
  }
  .mirror-btn:hover { background: #3a3228; color: #c2a67d; }
  .mirror-btn.active { background: #5a4a35; color: #c2a67d; }

  /* Symmetry guide lines */
  .sym-line {
    stroke: #c2a67d;
    stroke-width: 1.5;
    opacity: 0.45;
    stroke-dasharray: 8,5;
  }

  /* Save List Styles */
  .save-item {
    background: #2a2218;
    border: 1px solid #5a4a3566;
    padding: 10px 14px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color 0.3s, background 0.3s;
  }
  .save-item:hover {
    border-color: #c2a67d88;
    background: #3a3228;
  }
  .save-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .save-name {
    color: #e8d5b7;
    font-size: 13px;
    font-weight: 500;
  }
  .save-date {
    color: #5a4a35;
    font-size: 10px;
    letter-spacing: 0.05em;
  }
  .save-actions {
    display: flex;
    gap: 8px;
  }
  .save-actions button {
    padding: 4px 10px;
    font-size: 10px;
    border-color: #5a4a3588;
  }
  .save-actions .delete-btn:hover {
    background: #8b000033;
    border-color: #ff444466;
    color: #ff4444;
  }

  /* Timelapse recording */
  #tlDot {
    display: none;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ff4444;
    animation: tlPulse 1.2s ease-in-out infinite;
  }
  @keyframes tlPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }
  #tlMode {
    background: #2a2218;
    border: 1px solid #5a4a35;
    color: #c2a67d;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    letter-spacing: 0.05em;
    outline: none;
    cursor: pointer;
  }
  #tlRecordBtn.recording {
    background: #8b000033;
    color: #ff4444;
    border-color: #ff444466;
  }
  #tlRecordBtn:disabled {
    opacity: 0.4;
    cursor: default;
  }
  #tlStatus {
    color: #5a4a35;
    font-size: 11px;
    letter-spacing: 0.05em;
    min-width: 50px;
  }