/* Dark theme UI */
:root {
  --background: oklch(0.2046 0 0);
  --foreground: oklch(0.9219 0 0);
  --card: oklch(0.2686 0 0);
  --card-foreground: oklch(0.9219 0 0);
  --primary: oklch(0.7459 0.1563 301.0584);
  --primary-foreground: oklch(1.0000 0 0);
  --secondary: oklch(0.2753 0.0165 259.7828);
  --secondary-foreground: oklch(0.9219 0 0);
  --muted: oklch(0.2393 0 0);
  --muted-foreground: oklch(0.7155 0 0);
  --accent: oklch(0.7104 0.2362 344.0128);
  --accent-foreground: oklch(1.0000 0 0);
  --destructive: oklch(0.6368 0.2078 25.3313);
  --destructive-foreground: oklch(1.0000 0 0);
  --border: oklch(0.3715 0 0);
  --input: oklch(0.2400 0 0);
  --ring: oklch(0.6231 0.1880 259.8145);
  --radius: 0.375rem;
  --shadow-x: 0;
  --shadow-y: 1px;
  --shadow-blur: 3px;
  --shadow-spread: 0px;
  --shadow-opacity: 0.1;
  --shadow-color: oklch(0 0 0);
  --shadow-2xs: 0 1px 3px 0px hsl(0 0% 0% / 0.05);
  --shadow-xs: 0 1px 3px 0px hsl(0 0% 0% / 0.05);
  --shadow-sm: 0 1px 3px 0px hsl(0 0% 0% / 0.10), 0 1px 2px -1px hsl(0 0% 0% / 0.10);
  --shadow: 0 1px 3px 0px hsl(0 0% 0% / 0.10), 0 1px 2px -1px hsl(0 0% 0% / 0.10);
  --shadow-md: 0 1px 3px 0px hsl(0 0% 0% / 0.10), 0 2px 4px -1px hsl(0 0% 0% / 0.10);
  --shadow-lg: 0 1px 3px 0px hsl(0 0% 0% / 0.10), 0 4px 6px -1px hsl(0 0% 0% / 0.10);
  --shadow-xl: 0 1px 3px 0px hsl(0 0% 0% / 0.10), 0 8px 10px -1px hsl(0 0% 0% / 0.10);
  --shadow-2xl: 0 1px 3px 0px hsl(0 0% 0% / 0.25);

  /* Legacy aliases to keep existing styles working */
  --bg: var(--background);
  --panel: var(--card);
  --text: var(--foreground);
  --accent-2: var(--primary);
  --danger: var(--destructive);
  --success: var(--primary);
  --topbar-height: 56px;
  --medium-breakpoint: 900px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body.dark {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  min-height: var(--topbar-height);
}
.brand { font-weight: 400; letter-spacing: 0.3px; font-size: 20px; }
.brand .kood { color: var(--primary); }
.brand .pathfinder { font-weight: 600; }
.icon-button {
  background: var(--input);
  color: var(--foreground);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 14px;
  cursor: pointer;
}
.icon-button:hover { border-color: var(--accent); }

.controls { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.controls label { display: flex; gap: 6px; align-items: center; font-size: 16px; color: var(--muted-foreground); }
.controls select, .controls input, .controls button {
  font-size: 14px;
  background: var(--input);
  color: var(--foreground);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
}
.controls select:disabled, .controls button:disabled { opacity: 0.6; cursor: not-allowed; }
.controls button { background: var(--input); color: var(--foreground); border-color: var(--border); }
.controls button:hover { border-color: var(--accent); }

.layout {
  display: flex;
  gap: 12px;
  padding: 12px;
  align-items: stretch;
  height: calc(100vh - var(--topbar-height));
}
.panel {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--panel);
  display: flex;
  flex-direction: column;
}
.editor-panel {
  flex: 0 0 38%;
  max-width: 520px;
  min-width: 320px;
  transition: transform 180ms ease, opacity 180ms ease;
}
.canvas-panel { flex: 1; }
.editor-collapsed .editor-panel { display: none; }
.editor-open .editor-panel { display: flex; }

.editor-container { position: relative; flex: 1; min-height: 300px; }
.editor { position: absolute; inset: 0; }
.panel-title {
  font-size: 18px; color: var(--muted-foreground);
  padding: 10px 12px; border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 36px;
}

.panel-heading { font-weight: 600; color: var(--text); font-size: 18px; }

.panel-actions { display: flex; align-items: center; gap: 10px; }
.panel-inline { display: flex; align-items: center; gap: 8px; }
.turn-counter { color: var(--accent-2); font-size: 14px; }
.inline-checkbox { display: flex; gap: 6px; align-items: center; font-size: 16px; color: var(--muted-foreground); }
.speed-control { display: flex; gap: 6px; align-items: center; font-size: 16px; color: var(--muted-foreground); }
.speed-control select { background: var(--input); color: var(--foreground); border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; font-size: 14px; }

.panel-title button {
  background: var(--input);
  color: var(--foreground);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 14px;
  cursor: pointer;
}

.panel-title label { font-size: 16px; color: var(--muted-foreground); }

.panel-title button:hover:not(:disabled) {
  border-color: var(--accent);
}

.panel-title button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.panel-title input[type="checkbox"] {
  cursor: pointer;
}

.drop-overlay {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: rgba(20,24,32, 0.85);
  border: 2px dashed var(--accent-2);
}
.drop-overlay[hidden] { display: none !important; }
.drop-message { color: var(--accent); font-weight: 600; }

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

.toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: 16px; min-width: 240px; max-width: 60vw;
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card);
  color: var(--foreground);
  box-shadow: 0 8px 20px rgba(0,0,0,0.35);
  opacity: 0; pointer-events: none; transition: opacity 160ms ease;
}
.toast.show { opacity: 1; pointer-events: auto; }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
.toast.info { border-color: var(--accent-2); }

@media (max-width: var(--medium-breakpoint)) {
  .layout { position: relative; }
  .editor-panel {
    position: fixed;
    inset: var(--topbar-height) 0 0 0;
    width: 100%;
    height: calc(100% - var(--topbar-height));
    max-width: none;
    min-width: 0;
    z-index: 10;
    transform: translateX(-105%);
    box-shadow: 0 12px 30px rgba(0,0,0,0.45);
  }
  .editor-open .editor-panel {
    transform: translateX(0);
    display: flex;
  }
  .editor-collapsed .editor-panel {
    transform: translateX(-105%);
    opacity: 0;
    pointer-events: none;
    display: flex;
  }
}