:root {
  --bg: #14120f;
  --panel: #1c1a16;
  --border: #2e2a22;
  --amber: #d99a3a;
  --text: #e8e2d4;
  --text-dim: #a39c8a;
  --canvas-bg: #1a1712;
}

body.light-mode {
  --bg: #f4f0e6;
  --panel: #ffffff;
  --border: #d8d2c2;
  --amber: #c17d1f;
  --text: #201e19;
  --text-dim: #6b6455;
  --canvas-bg: #fdfcf8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

h1 {
  font-size: 16px;
  margin: 0;
  color: var(--amber);
}

.palette {
  display: flex;
  gap: 6px;
}

.palette-swatch {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  cursor: pointer;
  border: 2px solid transparent;
}

.palette-swatch.active {
  border-color: var(--text);
}

button {
  background: var(--amber);
  color: #14120f;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  font-family: inherit;
  font-weight: bold;
  cursor: pointer;
  font-size: 12px;
}

button:hover {
  opacity: 0.85;
}

input[type="color"] {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  cursor: pointer;
}

.presence-list {
  margin-left: auto;
  display: flex;
  gap: 6px;
}

.presence-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid var(--border);
}

.settings-panel {
  position: fixed;
  top: 60px;
  right: 20px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
  z-index: 100;
  width: 220px;
}

.settings-panel.hidden {
  display: none;
}

.settings-panel h2 {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 6px 0;
}

.settings-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 14px;
  font-size: 13px;
}

canvas {
  display: block;
  cursor: crosshair;
  background: var(--canvas-bg);
}

canvas.bg-grid {
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 24px 24px;
}

canvas.bg-light {
  background: #fdfcf8;
}

#cursorLayer {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
}

.remote-cursor {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: left 0.05s linear, top 0.05s linear;
}

.remote-cursor::after {
  content: attr(data-label);
  position: absolute;
  top: 12px;
  left: 8px;
  font-size: 10px;
  white-space: nowrap;
  color: var(--text-dim);
}

.tool-group {
  display: flex;
  gap: 4px;
  border-right: 1px solid var(--border);
  padding-right: 12px;
  margin-right: 4px;
}

.tool-btn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  width: 32px;
  height: 32px;
  font-size: 14px;
  padding: 0;
}

.tool-btn.active {
  background: var(--amber);
  color: #14120f;
  border-color: var(--amber);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: stretch;
  min-width: 280px;
}

.modal-content input[type="text"] {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px;
  border-radius: 4px;
  font-family: inherit;
}