:root {
  --bg: #eef0f2;
  --panel: #fff;
  --line: #d7dbe0;
  --text: #525263;
  --muted: #7a7a8c;
  --side: #2c3338;
  --side-hover: #3a4248;
  --accent: #de5d50;
  --accent-dark: #c44b40;
  --ok: #2f8f6b;
  --warn-bg: #fff6e8;
  --warn-line: #f0d2a0;
  --warn-text: #8a5a12;
  --header-h: 56px;
  --banner-h: 40px;
  --side-w: 220px;
  --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(--accent); text-decoration: none; }
a:hover { 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;
  gap: 8px;
  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: #cfd5da;
  padding: 0 0 24px;
}
.admin-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  height: var(--header-h);
  padding: 0 18px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  color: #fff;
  font-weight: 800;
  letter-spacing: .04em;
}
.admin-brand small {
  display: block;
  margin-top: 2px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .14em;
  opacity: .7;
}
.admin-nav { padding: 12px 0; }
.admin-nav a {
  display: block;
  padding: 11px 18px;
  color: #cfd5da;
  text-decoration: none;
  font-size: 14px;
  border-left: 3px solid transparent;
}
.admin-nav a:hover { background: var(--side-hover); text-decoration: none; }
.admin-nav a.is-active {
  background: var(--side-hover);
  border-left-color: var(--accent);
  color: #fff;
  font-weight: 700;
}
.admin-nav .nav-label {
  margin: 16px 18px 6px;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #8b949c;
}
.admin-main { min-width: 0; }
.admin-top {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 24px;
  background: var(--panel);
  border-bottom: 1px solid #e4e6ea;
}
.admin-top h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
}
.admin-top .meta {
  color: var(--muted);
  font-size: 12px;
}
.admin-content { padding: 22px 24px 40px; }
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}
.card {
  background: var(--panel);
  border: 1px solid #e4e6ea;
  border-radius: 8px;
  padding: 16px 18px;
}
.card .label { margin: 0; color: var(--muted); font-size: 12px; font-weight: 700; }
.card .value { margin: 8px 0 0; font-size: 28px; font-weight: 800; line-height: 1; }
.card .hint { margin: 8px 0 0; color: var(--muted); font-size: 12px; }
.panel {
  background: var(--panel);
  border: 1px solid #e4e6ea;
  border-radius: 8px;
  overflow: hidden;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 16px;
  border-bottom: 1px solid #e4e6ea;
}
.panel-head h2 { margin: 0; font-size: 15px; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.toolbar input, .toolbar select, .form-grid input, .form-grid select, .form-grid textarea {
  height: 36px;
  border: 1px solid #cfd3d8;
  border-radius: 4px;
  padding: 0 10px;
  font: inherit;
  color: var(--text);
  background: #fff;
}
.form-grid textarea { height: auto; min-height: 110px; padding: 10px; resize: vertical; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  border: 0;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--accent-dark); text-decoration: none; color: #fff; }
.btn-ghost {
  background: #fff;
  color: var(--text);
  border: 1px solid #cfd3d8;
}
.btn-ghost:hover { background: #f5f6f8; color: var(--text); }
.btn-ok { background: var(--ok); }
.btn-ok:hover { background: #267556; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data th, table.data td {
  padding: 12px 14px;
  border-bottom: 1px solid #eceef1;
  text-align: left;
  vertical-align: top;
}
table.data th {
  background: #f7f8fa;
  color: var(--muted);
  font-weight: 700;
  white-space: nowrap;
}
table.data tr:hover td { background: #fafbfc; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  background: #eef2f6;
  color: var(--muted);
}
.badge-new { background: #e8f6ef; color: var(--ok); }
.badge-paid { background: #eaf1ff; color: #3b5bdb; }
.badge-ship { background: #fff3e4; color: #b86a00; }
.badge-done { background: #eceef1; color: #666; }
.form-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 14px 16px;
  padding: 18px 16px;
  align-items: start;
}
.form-grid label { padding-top: 8px; font-size: 13px; font-weight: 700; color: var(--muted); }
.form-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 0 16px 18px;
}
.detail-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 14px;
}
.kv { margin: 0; padding: 0; list-style: none; }
.kv li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed #e4e6ea;
  font-size: 13px;
}
.kv span { color: var(--muted); }
.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 3000;
  max-width: min(420px, calc(100vw - 40px));
  padding: 12px 14px;
  border-radius: 8px;
  background: #1f2933;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 12px 30px rgba(0,0,0,.22);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: .2s ease;
}
.toast.is-show { opacity: 1; transform: none; }
.side-toggle {
  display: none;
  height: 34px;
  padding: 0 10px;
  border: 1px solid #cfd3d8;
  border-radius: 4px;
  background: #fff;
  font: inherit;
  cursor: pointer;
}
@media (max-width: 960px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .detail-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid label { padding-top: 0; }
}
@media (max-width: 780px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-side {
    position: fixed;
    top: calc(var(--sg-back-h, 40px) + var(--banner-h));
    left: 0;
    bottom: 0;
    width: min(80vw, 260px);
    z-index: 1800;
    transform: translateX(-105%);
    transition: transform .2s ease;
  }
  body.side-open .admin-side { transform: none; }
  .side-toggle { display: inline-flex; align-items: center; }
  .admin-content { padding: 16px; }
  .cards { grid-template-columns: 1fr 1fr; }
  table.data { display: block; overflow-x: auto; }
}