:root {
  --bg: #f4f4f2;
  --surface: #ffffff;
  --ink: #1c1d20;
  --muted: #6b6d73;
  --line: #dcdcd8;
  --accent: #2563eb;
  --removed: #b3261e;
  --added: #14713a;
  font-family: ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

/* .gate and .app set `display`, which would otherwise beat the UA rule for [hidden]. */
[hidden] { display: none !important; }

body {
  margin: 0;
  height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
}

.gate {
  display: grid;
  place-items: center;
  height: 100%;
  padding: 24px;
}

.gate-card {
  width: min(380px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px;
  display: grid;
  gap: 14px;
}

.gate-card h1 { margin: 0; font-size: 19px; }

.gate-hint { margin: 0; color: var(--muted); line-height: 1.5; }

.gate-card label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }

.gate-card input {
  font: inherit;
  color: var(--ink);
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
}

.gate-card input:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

.gate-card button[type="submit"] {
  font: inherit;
  font-weight: 600;
  padding: 10px;
  border: none;
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
}

.gate-error { margin: 0; color: var(--removed); }

.app { display: grid; grid-template-rows: auto 1fr; height: 100%; }

.bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 14px;
  height: 46px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.bar-title { font-weight: 600; }

.bar-actions { margin-left: auto; display: flex; gap: 8px; }

.ghost {
  font: inherit;
  color: var(--ink);
  text-decoration: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 10px;
  cursor: pointer;
}

.ghost:hover { background: var(--bg); }

.peers { display: flex; gap: 6px; flex-wrap: wrap; }

.peer {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--muted);
}

.peer::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--peer-color, var(--muted));
}

.workspace { display: grid; grid-template-columns: 1fr 360px; min-height: 0; }

.preview { border: none; width: 100%; height: 100%; background: var(--surface); }

.panel {
  border-left: 1px solid var(--line);
  background: var(--surface);
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 0;
}

.panel-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.panel-head h2 { margin: 0; font-size: 14px; }

.muted { color: var(--muted); font-size: 12px; }

.empty { padding: 0 14px 14px; }

.edits { list-style: none; margin: 0; padding: 0; overflow-y: auto; }

.edit {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  display: grid;
  gap: 4px;
}

.edit:hover { background: var(--bg); }

.edit-meta { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }

.edit-author { color: var(--ink); font-weight: 600; }

.edit-author::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--peer-color, var(--muted));
}

.edit-field { font-size: 12px; color: var(--muted); }

.edit-diff { display: grid; gap: 2px; line-height: 1.45; word-break: break-word; }

.edit-before { color: var(--removed); text-decoration: line-through; }

.edit-after { color: var(--added); }

.more { margin: 10px 14px; }