:root {
  /* https://modernfontstacks.com */
  --typography-geometric-humanist:
    Avenir, Montserrat, Corbel, "URW Gothic", source-sans-pro, sans-serif;
  --typography-monospace-code:
    ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas,
    "DejaVu Sans Mono", monospace;
  --bg-primary: #2c2c2c;
  --bg-secondary: #323232;
  --bg-tertiary: #383838;
  --bg-hover: #404040;
  --border-color: #454545;
  --text-primary: #e6e6e6;
  --text-secondary: #999999;
  --accent: #18a0fb;
  --accent-hover: #27affe;

  font-family: var(--typography-geometric-humanist);
}

* {
  box-sizing: border-box;
  scrollbar-width: thin;
  scrollbar-color: rgb(255 255 255 / 0.25) transparent;
}

body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
}

  [role="tree"].svelte-1j4zphp {
    padding: 8px 0;
    height: stretch;
    &:focus-visible,
    &:has(:where(.svelte-1j4zphp):focus-visible) {
      outline: none;
      background-color: var(--bg-secondary);
    }
  }

  [role="treeitem"].svelte-1j4zphp {
    position: relative;
    /* unsupported syntax in svelte */
    /* --tree-view-level: attr(aria-level type(<integer>)); */
    --tree-view-toggle-visibility: hidden;
    --tree-view-bg: transparent;
    --tree-view-bg-hover: var(--bg-hover);

    &[aria-expanded="true"] {
      --tree-view-toggle-visibility: visible;
      --tree-view-toggle-rotate: 0deg;
    }

    &[aria-expanded="false"] {
      --tree-view-toggle-visibility: visible;
      --tree-view-toggle-rotate: -90deg;
    }

    [role="tree"]:where(.svelte-1j4zphp) &[data-hovered="true"] {
      --tree-view-bg: var(--bg-hover);
      --tree-view-bg-hover: var(--bg-hover);
    }

    [role="tree"]:where(.svelte-1j4zphp) &[aria-selected="true"] {
      --tree-view-bg: var(--accent);
      --tree-view-bg-hover: var(--accent-hover);
    }
  }

  [role="group"].svelte-1j4zphp {
    display: none;

    [role="treeitem"][aria-expanded="true"]:where(.svelte-1j4zphp) > & {
      display: block;
    }
  }

  .node.svelte-1j4zphp {
    position: relative;
    display: flex;
    align-items: center;
    transition: 200ms;
    padding: 0 8px;
    padding-left: calc(8px + (var(--tree-view-level) - 1) * 12px);
    background-color: var(--tree-view-bg);
    color: var(--text-primary);

    &:hover {
      background-color: var(--tree-view-bg-hover);
    }
  }

  .select.svelte-1j4zphp {
    position: absolute;
    inset: 0;
    color: inherit;
    border: 0;
    background-color: transparent;
    /* selected/focused treeitem is already highlighted */
    outline: none;
  }

  .toggle.svelte-1j4zphp {
    isolation: isolate;
    color: var(--text-primary);
    border: 0;
    padding: 0;
    background-color: transparent;
    visibility: var(--tree-view-toggle-visibility);
    rotate: var(--tree-view-toggle-rotate);
    width: 24px;
    height: stretch;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: 200ms;
    /* the state is fully controlled with keyboard */
    outline: none;
    opacity: 0.5;

    &:hover {
      opacity: 1;
    }
  }

  .name.svelte-1j4zphp {
    isolation: isolate;
    font-size: 14px;
    pointer-events: none;
    padding: 4px 0;
  }

  .container.svelte-1nkjba2 {
    display: flex;
    flex-direction: column;
    height: 100vh;
  }

  /* Toolbar */
  .toolbar.svelte-1nkjba2 {
    display: none;
    justify-content: space-between;
    align-items: center;
    padding: 0 16px;
    height: 56px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
  }

  .toolbar-section.svelte-1nkjba2 {
    display: flex;
    gap: 4px;
  }

  .toolbar-btn.svelte-1nkjba2 {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 18px;
    transition: all 0.2s ease;
  }

  .toolbar-btn.svelte-1nkjba2:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }

  .toolbar-btn.svelte-1nkjba2:active {
    transform: translateY(0);
  }

  /* Main content */
  .content.svelte-1nkjba2 {
    display: flex;
    flex: 1;
    overflow: hidden;
  }

  /* Panels */
  .panel.svelte-1nkjba2 {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
  }

  .left-panel.svelte-1nkjba2 {
    width: 50%;
    border-right: 1px solid var(--border-color);
  }

  .right-panel.svelte-1nkjba2 {
    flex: 1;
    border-right: none;
  }

  .panel-header.svelte-1nkjba2 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 16px;
    height: 60px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    background: var(--bg-primary);
    gap: 16px;
  }

  .panel-title.svelte-1nkjba2 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }

  .add-btn.svelte-1nkjba2 {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 600;
    transition: all 0.2s ease;
  }

  .add-btn.svelte-1nkjba2:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
  }

  /* Tree structure */
  .token.svelte-1nkjba2 {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    transition: all 0.2s ease;
  }

  .token-preview.svelte-1nkjba2 {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
  }

  .token-hint.svelte-1nkjba2 {
    font-size: 12px;
    opacity: 0.6;
    font-family: var(--typography-monospace-code);
  }

  .token-name.svelte-1nkjba2 {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-primary);
    flex: 1;
  }

  /* CSS Textarea */
  .css-textarea.svelte-1nkjba2 {
    flex: 1;
    padding: 16px;
    border: none;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--typography-monospace-code);
    font-size: 13px;
    line-height: 1.6;
    resize: none;
    outline: none;
  }

  .css-textarea.svelte-1nkjba2::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
  }

  /* Output mode switcher */
  .output-mode-switcher.svelte-1nkjba2 {
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: 6px;
  }

  .mode-btn.svelte-1nkjba2 {
    padding: 6px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .mode-btn.svelte-1nkjba2:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
  }

  .mode-btn.active.svelte-1nkjba2 {
    background: var(--accent);
    color: white;
  }

  .mode-btn.active.svelte-1nkjba2:hover {
    background: var(--accent-hover);
  }