:root {
  --bg: #f0f0f1;
  --panel: #fff;
  --line: #c3c4c7;
  --text: #1d2327;
  --muted: #646970;
  --side: #1d2327;
  --side-hover: #2c3338;
  --wp: #2271b1;
  --wp-dark: #135e96;
  --ok: #00a32a;
  --warn-bg: #fcf9e8;
  --warn-line: #dba617;
  --warn-text: #996800;
  --header-h: 52px;
  --banner-h: 40px;
  --side-w: 200px;
  --font: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  padding-top: calc(var(--sg-back-h, 40px) + var(--banner-h));
}
a { color: var(--wp); text-decoration: none; }
a:hover { color: var(--wp-dark); text-decoration: underline; }
.admin-banner {
  position: fixed;
  top: var(--sg-back-h, 40px);
  left: 0; right: 0; z-index: 1900;
  height: var(--banner-h);
  display: flex; align-items: center; justify-content: center;
  padding: 0 16px;
  background: var(--warn-bg);
  border-bottom: 1px solid var(--warn-line);
  color: var(--warn-text);
  font-size: 13px; font-weight: 700; text-align: center;
}
.admin-shell {
  display: grid;
  grid-template-columns: var(--side-w) 1fr;
  min-height: calc(100vh - var(--sg-back-h, 40px) - var(--banner-h));
}
.admin-side { background: var(--side); color: #f0f0f1; padding-bottom: 24px; }
.admin-brand {
  height: var(--header-h);
  padding: 0 16px;
  display: flex; align-items: center; gap: 8px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-weight: 800; color: #fff; letter-spacing: .02em;
}
.admin-brand small {
  display: block; font-size: 10px; font-weight: 500; letter-spacing: .12em; opacity: .65; margin-top: 2px;
}
.admin-nav { padding: 10px 0; }
.admin-nav .nav-label {
  margin: 14px 16px 6px;
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: #8c8f94;
}
.admin-nav a {
  display: block; padding: 10px 16px;
  color: #dcdcde; text-decoration: none; font-size: 14px;
  border-left: 4px solid transparent;
}
.admin-nav a:hover { background: var(--side-hover); text-decoration: none; color: #fff; }
.admin-nav a.is-active {
  background: var(--side-hover); border-left-color: var(--wp); color: #fff; font-weight: 700;
}
.admin-main { min-width: 0; }
.admin-top {
  height: var(--header-h);
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; gap: 12px;
}
.admin-top h1 { margin: 0; font-size: 20px; }
.admin-top .meta { margin: 0; color: var(--muted); font-size: 13px; }
.side-toggle {
  display: none; width: 36px; height: 36px;
  border: 1px solid var(--line); background: #fff; border-radius: 6px; cursor: pointer;
}
.admin-content { padding: 22px 20px 40px; }
.toolbar {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  margin-bottom: 16px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 36px; padding: 0 14px; border-radius: 4px;
  font-size: 13px; font-weight: 700; border: 1px solid transparent; cursor: pointer;
  text-decoration: none; font-family: inherit;
}
.btn-primary { background: var(--wp); color: #fff; }
.btn-primary:hover { background: var(--wp-dark); text-decoration: none; color: #fff; }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: #8c8f94; text-decoration: none; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}
.panel-head h2 { margin: 0; font-size: 14px; }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th, table.data td {
  padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top;
}
table.data th { background: #f6f7f7; color: var(--muted); font-size: 12px; font-weight: 700; }
table.data tr:last-child td { border-bottom: none; }
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 700;
}
.badge-pub { background: #edfaef; color: var(--ok); }
.badge-draft { background: #f0f0f1; color: var(--muted); }
.edit-grid {
  display: grid; grid-template-columns: 1fr 280px; gap: 16px;
}
@media (max-width: 920px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-side { display: none; }
  .admin-side.is-open { display: block; position: fixed; inset: calc(var(--sg-back-h,40px) + var(--banner-h)) auto 0 0; width: var(--side-w); z-index: 1800; }
  .side-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .edit-grid { grid-template-columns: 1fr; }
}
.field { margin-bottom: 14px; }
.field label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 700; }
.field input[type=text], .field select, .field textarea {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 4px;
  font: inherit; color: var(--text); background: #fff;
}
.field textarea { min-height: 220px; resize: vertical; line-height: 1.7; }
.help { margin: 6px 0 0; color: var(--muted); font-size: 12px; }
.box {
  background: var(--panel); border: 1px solid var(--line); border-radius: 4px; margin-bottom: 14px;
}
.box-h {
  padding: 10px 14px; border-bottom: 1px solid var(--line);
  font-size: 13px; font-weight: 700; background: #f6f7f7;
}
.box-b { padding: 14px; }
.toast {
  position: fixed; right: 20px; bottom: 20px; z-index: 3000;
  background: #1d2327; color: #fff; padding: 12px 16px; border-radius: 6px;
  font-size: 13px; font-weight: 700; opacity: 0; pointer-events: none;
  transition: opacity .2s;
}
.toast.is-show { opacity: 1; }