:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --border: #d6dde5;
  --text: #1c2733;
  --muted: #5c6b7a;
  --accent: #0d6efd;
  --danger: #c0392b;
  --ok: #1e7d43;
  --badge: #eef3f9;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: #0f1b29;
  color: #fff;
}

.brand { font-weight: 600; letter-spacing: 0.02em; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

main { padding: 16px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}

.panel.narrow { max-width: 420px; margin: 48px auto; }

.layout {
  display: grid;
  grid-template-columns: minmax(260px, 340px) 1fr;
  gap: 16px;
  align-items: start;
  margin-bottom: 16px;
}

.sidebar { position: sticky; top: 16px; max-height: calc(100vh - 48px); overflow: auto; }

.filters { display: grid; gap: 8px; margin-bottom: 12px; }

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

input, select, textarea, button {
  font: inherit;
  color: var(--text);
}

input, select, textarea {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
}

label.inline input { width: auto; }

textarea { resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }

button {
  padding: 7px 12px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
}

button.ghost { background: #fff; color: var(--accent); }
button.danger { background: #fff; color: var(--danger); border-color: var(--danger); }
button:disabled { opacity: 0.45; cursor: not-allowed; }

.stack { display: grid; gap: 10px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.item-list { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 4px; }
.item-list li button {
  width: 100%;
  text-align: left;
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.item-list li button.selected { border-color: var(--accent); background: #eef4ff; }

.badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--badge);
  color: var(--text);
  font-size: 11px;
  border: 1px solid var(--border);
}
.badge.draft { background: #f1f3f5; }
.badge.scheduled { background: #fff4e0; }
.badge.published { background: #e6f6ec; }
.badge.archived { background: #f0eef7; }
.badge.role { background: #0f1b29; color: #fff; border-color: #0f1b29; }

.editor-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; margin-bottom: 12px; }
.editor-head h2 { margin: 0 0 4px; font-size: 16px; }

.publish-bar {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
  display: grid;
  gap: 8px;
}

.preview { margin-top: 12px; border: 1px solid var(--border); border-radius: 6px; padding: 8px; }
.preview summary { cursor: pointer; font-size: 12px; color: var(--muted); }
.preview pre {
  max-height: 320px;
  overflow: auto;
  background: #0f1b29;
  color: #dbe7f3;
  padding: 10px;
  border-radius: 6px;
  font-size: 12px;
}

.revisions { display: grid; gap: 6px; margin-top: 8px; }
.revisions .revision {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
}

.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--danger); font-size: 12px; min-height: 1em; }
.ok { color: var(--ok); font-size: 12px; min-height: 1em; }
.empty { padding: 32px; text-align: center; color: var(--muted); }
.hidden { display: none !important; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; max-height: none; }
  .grid2 { grid-template-columns: 1fr; }
}