:root {
  --bg: #10141a;
  --bg-panel: #161b22;
  --bg-raised: #1c232c;
  --border: #2a323d;
  --text: #dfe6ee;
  --text-dim: #8b98a8;
  --accent: #4c8dff;
  --accent-dim: #2d5cad;
  --ok: #3fb950;
  --warn: #d29922;
  --err: #f85149;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font: 13px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ------------------------------------------------------------------ topbar */

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 14px;
  height: 46px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  flex: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.brand .logo { color: var(--accent); font-size: 16px; }

.crumb {
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 12px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.actions { display: flex; gap: 8px; }

/* Clipboard: items picked up in one template, dropped into another. */
.clipboard {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 6px 3px 10px;
  border: 1px dashed var(--accent-dim);
  border-radius: 6px;
  background: var(--bg-raised);
  flex: none;
}

.clipboard-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge-copy { cursor: pointer; }
.badge-copy:hover { color: var(--accent); }
.badge-delete:hover { color: var(--err); }

/* ------------------------------------------------------------------ layout */

.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 210px minmax(360px, 1fr) minmax(340px, 1fr);
  min-height: 0;
}

.pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  border-right: 1px solid var(--border);
}

.pane-preview { border-right: none; }

.pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  flex: none;
}

.pane-head h2 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-dim);
  margin: 0;
}

.pane-foot {
  display: flex;
  gap: 6px;
  padding: 8px;
  border-top: 1px solid var(--border);
  flex: none;
}

/* ------------------------------------------------------------------- lists */

.list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.list li {
  padding: 5px 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  border-left: 2px solid transparent;
}

.list li:hover { background: var(--bg-raised); }

.list li.is-active {
  background: var(--bg-raised);
  border-left-color: var(--accent);
}

.list li .badge {
  margin-left: auto;
  font-size: 10px;
  color: var(--text-dim);
  font-family: var(--mono);
}

.list li.is-invalid { color: var(--err); }

.list-files li { font-family: var(--mono); font-size: 12px; }

.kind-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--text-dim); flex: none;
}
.kind-template { background: var(--accent); }
.kind-fixture { background: var(--ok); }
.kind-config { background: var(--warn); }

/* -------------------------------------------------------------------- tabs */

.tabs {
  display: flex;
  gap: 2px;
  padding: 6px 8px 0;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  flex: none;
}

.tab {
  background: none;
  border: 1px solid transparent;
  border-bottom: none;
  color: var(--text-dim);
  padding: 6px 12px;
  cursor: pointer;
  border-radius: 5px 5px 0 0;
  font-size: 12px;
}

.tab.is-active {
  color: var(--text);
  background: var(--bg);
  border-color: var(--border);
}

.tab-panel { display: none; flex: 1; min-height: 0; }
.tab-panel.is-active { display: flex; flex-direction: column; }

/* ------------------------------------------------------------------ editor */

.split-v {
  display: grid;
  grid-template-columns: 190px 1fr;
  flex: 1;
  min-height: 0;
}

.filetree, .datalist {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  min-height: 0;
  overflow-y: auto;
}

.filetree-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  flex: none;
}

.editor-wrap {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
}

.editor-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  flex: none;
}

.editor-head-actions { display: flex; align-items: center; gap: 8px; }

#editor, #data-editor { flex: 1; min-height: 0; overflow: hidden; }

.CodeMirror {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.55;
}

.CodeMirror-gutters { background: var(--bg-panel); border-right: 1px solid var(--border); }
.CodeMirror-linenumber { color: #55606d; }
.CodeMirror-cursor { border-left: 1px solid var(--accent); }
.CodeMirror-selected { background: #2b3a52 !important; }
.cm-s-default .cm-tag { color: #7ee787; }
.cm-s-default .cm-attribute { color: #79c0ff; }
.cm-s-default .cm-string { color: #ffab70; }
.cm-s-default .cm-keyword { color: #ff7b72; }
.cm-s-default .cm-number { color: #d2a8ff; }
.cm-s-default .cm-comment { color: #6e7781; }
.cm-s-default .cm-property { color: #79c0ff; }

/* ------------------------------------------------------------------- forms */

.form {
  padding: 14px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
}

.form label.check {
  flex-direction: row;
  align-items: center;
  gap: 6px;
  text-transform: none;
  letter-spacing: 0;
  font-size: 12px;
}

.form .row { display: flex; gap: 10px; flex-wrap: wrap; }
.form .row > label { flex: 1; min-width: 110px; }

input, select, textarea {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 5px;
  padding: 6px 8px;
  font: inherit;
  text-transform: none;
  letter-spacing: 0;
}

textarea { font-family: var(--mono); font-size: 12px; resize: vertical; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-dim);
}

.form-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.hidden { display: none !important; }

/* ----------------------------------------------------------------- buttons */

.btn {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 5px;
  padding: 5px 11px;
  cursor: pointer;
  font: inherit;
}

.btn:hover { border-color: #3d4956; }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn-primary { background: var(--accent-dim); border-color: var(--accent); }
.btn-danger:hover { border-color: var(--err); color: var(--err); }
.btn-small { padding: 3px 8px; font-size: 12px; }

.icon-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
  padding: 0 4px;
  line-height: 1;
}

.icon-btn:hover { color: var(--text); }

.filetree-actions { display: flex; gap: 2px; align-items: center; }

/* ----------------------------------------------------------------- preview */

.preview-controls { display: flex; gap: 8px; align-items: center; }

.switch { display: flex; border: 1px solid var(--border); border-radius: 5px; overflow: hidden; }

.switch-btn {
  background: var(--bg-raised);
  border: none;
  color: var(--text-dim);
  padding: 4px 10px;
  cursor: pointer;
  font: inherit;
}

.switch-btn.is-active { background: var(--accent-dim); color: #fff; }

.preview-status {
  padding: 5px 10px;
  font-size: 12px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  flex: none;
  min-height: 27px;
}

.preview-status.is-error { color: var(--err); }
.preview-status.is-ok { color: var(--ok); }

.preview-frame { flex: 1; min-height: 0; background: #30363d; }
.preview-frame iframe, .preview-frame embed, .preview-frame object {
  width: 100%;
  height: 100%;
  border: none;
  background: #fff;
}

/* ------------------------------------------------------------------ report */

.report {
  padding: 14px;
  overflow-y: auto;
  font-size: 13px;
}

.report h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-dim);
  margin: 16px 0 6px;
}

.report ul { margin: 0; padding-left: 18px; }
.report li { font-family: var(--mono); font-size: 12px; }
.report .verdict { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.report .verdict.ok { color: var(--ok); }
.report .verdict.bad { color: var(--err); }
.report .meta { color: var(--text-dim); font-family: var(--mono); font-size: 12px; }
.report .missing li { color: var(--err); }
.report .unused li { color: var(--warn); }
.report .optional li { color: var(--text-dim); }

/* ------------------------------------------------------------------ dialog */

.dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(6, 9, 13, 0.65);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 20px 20px;
  overflow-y: auto;
}

.dialog {
  width: min(860px, 100%);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
}

.dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.dialog-head h2 { margin: 0; font-size: 14px; font-weight: 600; }
.dialog-body { padding: 16px; }

.snippet { margin-bottom: 18px; }
.snippet:last-child { margin-bottom: 0; }

.snippet-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 5px;
}

.snippet-head h3 { margin: 0; font-size: 12.5px; font-weight: 600; }
.snippet-head .why { color: var(--text-dim); font-size: 11.5px; }

.snippet pre {
  margin: 0;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
  max-height: 260px;
  overflow-y: auto;
}

.snippet .note { color: var(--text-dim); font-size: 11.5px; margin-top: 5px; }

/* ------------------------------------------------------------ context menu */

.context-menu {
  position: fixed;
  z-index: 40;
  min-width: 180px;
  margin: 0;
  padding: 4px 0;
  list-style: none;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  font-size: 12.5px;
}

.context-menu li {
  padding: 5px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  white-space: nowrap;
}

.context-menu li:hover { background: var(--accent-dim); color: #fff; }
.context-menu li.is-disabled { color: #5a6572; cursor: default; }
.context-menu li.is-disabled:hover { background: none; color: #5a6572; }
.context-menu li.is-danger { color: var(--err); }
.context-menu li.is-danger:hover { background: var(--err); color: #fff; }
.context-menu li.separator { padding: 0; margin: 4px 0; height: 1px; background: var(--border); cursor: default; }
.context-menu li.separator:hover { background: var(--border); }
.context-menu li.title {
  cursor: default;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 11px;
  padding-bottom: 3px;
}
.context-menu li.title:hover { background: none; }
.context-menu .hint { color: var(--text-dim); font-size: 11px; }
.context-menu li:hover .hint { color: rgba(255, 255, 255, 0.7); }

/* ------------------------------------------------------------------- toast */

.status { font-size: 11px; color: var(--text-dim); }
.status.is-error { color: var(--err); }
.status.is-ok { color: var(--ok); }

.toast {
  position: fixed;
  bottom: 16px;
  right: 16px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 10px 14px;
  border-radius: 6px;
  max-width: 420px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  z-index: 20;
  white-space: pre-wrap;
  font-family: var(--mono);
  font-size: 12px;
}

.toast.is-error { border-left-color: var(--err); }
.toast.is-ok { border-left-color: var(--ok); }