:root {
  --bg: #0f1115;
  --bg-elev: #161a22;
  --bg-elev-2: #1d2230;
  --border: #2a3040;
  --text: #d6dae4;
  --text-dim: #8a92a6;
  --accent: #5b8cff;
  --accent-dim: #3c5aa3;
  --ok: #4ade80;
  --warn: #fbbf24;
  --err: #f87171;
  --info: #60a5fa;
  --debug: #94a3b8;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fa;
    --bg-elev: #ffffff;
    --bg-elev-2: #eef1f6;
    --border: #dde2ec;
    --text: #1a2030;
    --text-dim: #5c6577;
    --accent: #3b66d8;
    --accent-dim: #2b4ba0;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}

.hidden { display: none !important; }

/* -------- Login -------- */
.login-screen {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--bg);
}
.login-form {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 28px 32px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 320px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.35);
}
.login-form h1 { margin: 0 0 6px; font-size: 18px; font-weight: 600; }
.login-form .subtitle { margin: 0 0 8px; font-size: 12px; color: var(--text-dim); line-height: 1.5; }
.login-form .subtitle .warn { color: var(--warn); display: inline-block; margin-bottom: 2px; }
.login-form button.ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  margin-top: 2px;
}
.login-form button.ghost:hover { color: var(--text); border-color: var(--accent); }
.login-form label { display: flex; flex-direction: column; font-size: 12px; color: var(--text-dim); gap: 4px; }
.login-form input {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
}
.login-form input:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.login-form button {
  background: var(--accent);
  color: white;
  border: 0;
  padding: 9px 12px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 4px;
}
.login-form button:hover { background: var(--accent-dim); }
.error { color: var(--err); font-size: 12px; margin: 0; }

/* -------- App layout -------- */
.app { display: grid; grid-template-rows: auto 1fr auto; height: 100vh; }
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}
.header-left, .header-right { display: flex; align-items: center; gap: 12px; }
.brand { font-weight: 600; }
.config-name { color: var(--text-dim); font-family: var(--mono); font-size: 12px; }
.status-chip {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 10px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
}
.status-ok { color: var(--ok); border-color: rgba(74, 222, 128, 0.35); }
.status-warn { color: var(--warn); border-color: rgba(251, 191, 36, 0.35); }
.status-err { color: var(--err); border-color: rgba(248, 113, 113, 0.35); }

.header button,
.header a.ghost {
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  line-height: normal;
}
.header button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.header button.primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.header button.ghost:hover,
.header a.ghost:hover { background: var(--bg-elev); color: var(--text); }
.header button.small {
  padding: 3px 7px;
  font-size: 14px;
  min-width: 0;
  line-height: 1;
}
.header button.primary:not(:disabled):hover { background: var(--accent-dim); }

/* + Add dropdown */
.add-dropdown { position: relative; }
.add-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  min-width: 200px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  padding: 4px 0;
  z-index: 50;
}
.add-menu.hidden { display: none; }
.add-menu button {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  color: var(--text);
  padding: 8px 14px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}
.add-menu button:hover { background: var(--bg-elev-2); }

.main {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(360px, 1fr);
  gap: 1px;
  background: var(--border);
  min-height: 0;
}

/* -------- Editor pane -------- */
.editor-pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  min-height: 0;
}
.editor-toolbar {
  display: flex;
  align-items: center;
  padding: 4px 8px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  gap: 8px;
}
.toolbar-btn {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
}
.toolbar-btn:hover { background: var(--bg-elev); border-color: var(--accent); color: var(--accent); }
.toolbar-spacer { flex: 1; }
.save-btn:not(:disabled) {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.save-btn:not(:disabled):hover { background: var(--accent-dim); }
.save-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.editor-with-gutter {
  flex: 1;
  display: flex;
  min-height: 0;
  position: relative;
}
#editor-host {
  flex: 1;
  overflow: auto;
  font-family: var(--mono);
  font-size: 13px;
  position: relative;
  min-width: 0;
}

/* -------- Thin gutter with ⋯ buttons -------- */
.gutter {
  width: 30px;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--bg);
  border-right: 1px solid var(--border);
  position: relative;
}
.gutter-inner {
  position: relative;
  /* height set by JS to match textarea scrollHeight */
}
.section-btn {
  position: absolute;
  left: 3px;
  width: 24px;
  height: 20px;
  padding: 0;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-dim);
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
}
.section-btn:hover {
  color: var(--accent);
  border-color: var(--border);
  background: var(--bg-elev);
}

/* Popover menu shown when the three-dots button is clicked. Uses
   `position: fixed` so it can escape the sidebar's overflow clip. */
.section-menu {
  position: fixed;
  min-width: 240px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  padding: 4px 0;
  z-index: 50;
}
.section-menu button {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  color: var(--text);
  padding: 7px 14px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}
.section-menu button:hover { background: var(--bg-elev-2); }
.section-menu button.danger:hover { color: var(--err); }
.section-menu .menu-sep {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

/* Modal */
.modal { position: fixed; inset: 0; z-index: 100; display: block; }
.modal.hidden { display: none; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}
.modal-card {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  max-height: 85vh;
}
.form-modal-card {
  width: min(92vw, 720px);
  max-height: 85vh;
  display: flex;
  flex-direction: column;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px 10px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { margin: 0; font-size: 15px; font-weight: 600; }
.modal-close {
  background: none;
  border: 0;
  color: var(--text-dim);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
}
.modal-close:hover { color: var(--text); }
.modal-body {
  padding: 14px 18px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}
.modal-hint { margin: 0 0 8px; font-size: 12px; color: var(--text-dim); }
.section-form { display: flex; flex-direction: column; gap: 12px; }
.form-tab-bar {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
  margin-bottom: 4px;
}
.form-tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  padding: 6px 14px;
  border-radius: 6px 6px 0 0;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}
.form-tab:hover { color: var(--text); background: var(--bg-elev-2); }
.form-tab.active {
  color: var(--text);
  border-color: var(--border);
  border-bottom-color: var(--bg-elev);
  background: var(--bg-elev);
}
.form-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
}
.form-col-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2px;
}
.form-col { display: flex; flex-direction: column; gap: 10px; }
@media (max-width: 700px) {
  .form-columns { grid-template-columns: 1fr; }
}
.section-form .form-field { display: flex; flex-direction: column; gap: 3px; }
.section-form .form-label {
  font-size: 12px;
  color: var(--text-dim);
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.section-form .form-label .required { color: var(--err); font-weight: 600; }
.section-form .form-label .optional { color: var(--text-dim); font-size: 10px; }
.section-form input[type="text"],
.section-form input[type="number"],
.section-form input[type="password"],
.section-form select,
.section-form textarea {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 10px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
}
.section-form input:focus,
.section-form select:focus,
.section-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 0;
  border-color: var(--accent);
}
.section-form .form-help {
  font-size: 11px;
  color: var(--text-dim);
  margin: 0;
}
.section-form .form-group-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-top: 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.section-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.section-form .checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}
.section-form .checkboxes label {
  font-size: 12px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}
.section-form .checkboxes input[type="checkbox"] {
  accent-color: var(--accent);
}
.section-form .override-note {
  font-size: 10px;
  color: var(--accent-dim);
  font-style: italic;
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 10px 18px 14px;
  border-top: 1px solid var(--border);
}
.modal-footer button {
  font-size: 12px;
  padding: 7px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--text);
  cursor: pointer;
}
.modal-footer button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.modal-footer button.primary:hover { background: var(--accent-dim); }
.modal-footer button:disabled { opacity: 0.5; cursor: not-allowed; }

/* Fallback textarea (used when CodeMirror fails to load) */
.aimm-editor {
  width: 100%;
  height: 100%;
  border: 0;
  outline: none;
  resize: none;
  padding: 12px 14px;
  background: var(--bg-elev);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  white-space: pre;
  tab-size: 2;
}
/* CodeMirror 5 integration */
.CodeMirror {
  height: 100%;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  background: var(--bg-elev);
  color: var(--text);
}
.CodeMirror-gutters {
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
}
.CodeMirror-linenumber {
  color: var(--text-dim);
}
.CodeMirror-cursor { border-left-color: var(--text); }
.CodeMirror-selected { background: rgba(100, 150, 255, 0.2); }
/* TOML syntax tokens */
.cm-s-default .cm-atom   { color: #d19a66; }  /* booleans */
.cm-s-default .cm-number  { color: #d19a66; }
.cm-s-default .cm-string  { color: #98c379; }
.cm-s-default .cm-comment { color: #7f848e; font-style: italic; }
.cm-s-default .cm-meta    { color: #61afef; font-weight: 600; }  /* [section.headers] */
.cm-s-default .cm-property { color: #e06c75; }  /* keys */
.editor-status {
  border-top: 1px solid var(--border);
  padding: 6px 12px;
  font-size: 12px;
  color: var(--text-dim);
  min-height: 26px;
}
.editor-status.ok { color: var(--ok); }
.editor-status.err { color: var(--err); white-space: pre-wrap; font-family: var(--mono); }

/* Simple TOML syntax highlighting via overlay spans injected by app.js */
.tok-section { color: #c5a3ff; font-weight: 600; }
.tok-key     { color: #7dd3fc; }
.tok-string  { color: #a7f3d0; }
.tok-number  { color: #fbbf24; }
.tok-bool    { color: #f472b6; }
.tok-comment { color: var(--text-dim); font-style: italic; }

/* -------- Logs pane -------- */
.logs-pane { display: flex; flex-direction: column; background: var(--bg-elev); min-height: 0; }
.logs-toolbar {
  display: flex;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  flex-wrap: wrap;
}
.level-chips, .kind-chips { display: flex; gap: 4px; }
.logs-toolbar select {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
}
.chip {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 12px;
  cursor: pointer;
}
.chip.active { color: var(--text); border-color: var(--accent); }
.chip.has-badge {
  position: relative;
  border-color: var(--err);
  color: var(--err);
}
.chip.has-badge::after {
  content: attr(data-badge);
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--err);
  color: white;
  font-size: 9px;
  font-weight: 700;
  min-width: 14px;
  height: 14px;
  line-height: 14px;
  text-align: center;
  border-radius: 7px;
  padding: 0 3px;
}
#log-filter {
  flex: 1;
  min-width: 120px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 9px;
  border-radius: 6px;
  font-size: 12px;
}
.autoscroll { font-size: 11px; color: var(--text-dim); display: flex; align-items: center; gap: 4px; }

.logs {
  flex: 1;
  overflow: auto;
  padding: 6px 0;
  font-family: var(--mono);
  font-size: 12px;
}
.log-row {
  display: grid;
  grid-template-columns: 64px 52px 1fr;
  gap: 8px;
  padding: 3px 12px;
  cursor: pointer;
  border-left: 2px solid transparent;
}
.log-row:hover { background: var(--bg-elev-2); }
.log-row.expanded { background: var(--bg-elev-2); border-left-color: var(--accent); }
.log-row .log-time { color: var(--text-dim); }
.log-row .log-level { font-weight: 600; text-transform: uppercase; font-size: 10px; padding-top: 1px; }
.level-DEBUG .log-level { color: var(--debug); }
.level-INFO .log-level { color: var(--info); }
.level-WARNING .log-level { color: var(--warn); }
.level-ERROR .log-level, .level-CRITICAL .log-level { color: var(--err); }
.log-row .log-msg { white-space: pre-wrap; overflow-wrap: break-word; }
.kind-badge {
  display: inline-block;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 1px 6px;
  margin-right: 6px;
  border-radius: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-dim);
  vertical-align: middle;
}
.kind-ai_eval      { color: #c5a3ff; border-color: rgba(197,163,255,.4); }
.kind-search_summary { color: #60a5fa; border-color: rgba(96,165,250,.4); }
.kind-listing_skip { color: var(--text-dim); }
.kind-credentials_wait { color: var(--warn); border-color: rgba(251,191,36,.4); }
.kind-browser_ready { color: var(--ok); border-color: rgba(74,222,128,.4); }
.log-detail {
  grid-column: 3;
  margin-top: 6px;
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 11px;
  white-space: pre-wrap;
}
.log-detail a { color: var(--accent); }
.log-detail dl { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; margin: 0; }
.log-detail dt { color: var(--text-dim); }

.footer {
  display: flex;
  justify-content: space-between;
  padding: 6px 16px;
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-dim);
}