:root {
  --bg: #0f1419;
  --sidebar: #1a2332;
  --card: #1e2a3a;
  --border: #2d3f54;
  --text: #e7edf4;
  --muted: #8fa3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }

.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-box { background: var(--card); padding: 32px; border-radius: 12px; width: 360px; border: 1px solid var(--border); }
.login-box h1 { margin: 0 0 24px; font-size: 20px; text-align: center; }
.login-box label { display: block; margin: 12px 0 6px; color: var(--muted); }
.login-box input { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); }
.login-box button { width: 100%; margin-top: 20px; }

.app { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: var(--sidebar); border-right: 1px solid var(--border); display: flex; flex-direction: column; flex-shrink: 0; }
.brand { padding: 20px 16px; font-weight: 700; border-bottom: 1px solid var(--border); }
.sidebar nav { flex: 1; padding: 12px 8px; }
.sidebar nav a { display: block; padding: 10px 12px; color: var(--muted); text-decoration: none; border-radius: 8px; margin-bottom: 4px; }
.sidebar nav a:hover, .sidebar nav a.active { background: rgba(59,130,246,.15); color: var(--text); }
.sidebar nav hr { border: none; border-top: 1px solid var(--border); margin: 12px 0; }
.sidebar-foot { padding: 16px; border-top: 1px solid var(--border); font-size: 12px; color: var(--muted); }
.sidebar-foot a { color: var(--primary); }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar { padding: 16px 24px; border-bottom: 1px solid var(--border); background: var(--card); }
.topbar h1 { margin: 0; font-size: 18px; }
.content { padding: 24px; flex: 1; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 20px; }
.card h2 { margin: 0 0 16px; font-size: 16px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.stat .label { color: var(--muted); font-size: 12px; }
.stat .value { font-size: 28px; font-weight: 700; margin-top: 8px; }

.filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; margin-bottom: 16px; }
.filters label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.filters input, .filters select { padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); min-width: 140px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }
tr:hover td { background: rgba(255,255,255,.02); }

.th-tip { display: inline-flex; align-items: center; gap: 4px; position: relative; white-space: nowrap; }
.th-tip-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px; border-radius: 50%;
  background: rgba(143,163,184,.25); color: var(--muted);
  font-size: 10px; font-weight: 700; line-height: 1; cursor: help;
}
.th-tip-icon:hover, .th-tip-icon:focus { background: rgba(59,130,246,.35); color: var(--text); outline: none; }
.th-tip-popup {
  display: none; position: absolute; left: 0; top: calc(100% + 8px); z-index: 20;
  min-width: 220px; max-width: 320px; padding: 10px 12px;
  background: #0b1220; border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font-size: 12px; font-weight: 400; line-height: 1.5;
  box-shadow: 0 8px 24px rgba(0,0,0,.35); white-space: normal; text-align: left;
}
.th-tip:hover .th-tip-popup, .th-tip-icon:focus + .th-tip-popup, .th-tip-icon:hover + .th-tip-popup { display: block; }
.th-tip-popup-wide { min-width: 300px; max-width: 360px; }
.status-tip-item { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 8px; }
.status-tip-item:last-child { margin-bottom: 0; }
.status-tip-item .badge { flex-shrink: 0; margin-top: 1px; }
.status-tip-item > span:last-child { color: var(--muted); }

.btn { display: inline-block; padding: 8px 16px; border-radius: 8px; border: none; cursor: pointer; font-size: 13px; text-decoration: none; color: #fff; }
.btn-primary { background: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: #475569; }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; }
.alert-error { background: rgba(239,68,68,.15); color: #fca5a5; }
.alert-success { background: rgba(34,197,94,.15); color: #86efac; }
.alert-info { background: rgba(59,130,246,.15); color: #93c5fd; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; }
.badge-pending { background: rgba(245,158,11,.2); color: var(--warn); }
.badge-received { background: rgba(6, 182, 212, .22); color: #67e8f9; }
.badge-done { background: rgba(34,197,94,.2); color: var(--success); }
.badge-unused { background: rgba(59,130,246,.2); color: #93c5fd; }
.badge-online { background: rgba(34,197,94,.2); color: var(--success); }
.badge-failed { background: rgba(239,68,68,.2); color: #fca5a5; }

.form-row { margin-bottom: 14px; }
.form-row label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 12px; }
.form-row input, .form-row select, .form-row textarea { width: 100%; max-width: 400px; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.form-row input[type="checkbox"] { width: auto; max-width: none; margin: 0; padding: 0; vertical-align: middle; }
.form-row label.checkbox-inline { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 0; cursor: pointer; color: var(--text); font-size: 13px; }
.form-inline { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }

.pagination { display: flex; gap: 8px; margin-top: 16px; align-items: center; }
.pagination a { color: var(--primary); text-decoration: none; }
.code-block { background: var(--bg); padding: 12px; border-radius: 8px; font-family: Consolas, monospace; font-size: 12px; max-height: 200px; overflow: auto; white-space: pre-wrap; word-break: break-all; }
.placeholder-note { color: var(--muted); line-height: 1.6; }

@media (max-width: 768px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; }
}

.blacklist-bar { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: center; padding: 14px 18px; }
.bl-inline-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 0; }
.bl-toggle { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; cursor: pointer; }
.bl-toggle input { margin: 0; }
.bl-divider { width: 1px; height: 26px; background: var(--border); flex-shrink: 0; }
.blacklist-bar input[type="text"] {
  padding: 6px 10px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); width: 130px; font-size: 13px;
}
details.bl-panel > summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; align-items: center; gap: 8px; }
details.bl-panel > summary::-webkit-details-marker { display: none; }
details.bl-panel > summary::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  flex-shrink: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 6px solid var(--muted);
  transition: transform 0.15s ease;
}
details.bl-panel[open] > summary::before { transform: rotate(90deg); }
.badge-blocked { background: rgba(239,68,68,.2); color: #fca5a5; }

.item-ac-wrap { position: relative; max-width: 400px; }
.item-suggest-list {
  position: absolute; left: 0; right: 0; top: calc(100% + 4px); z-index: 20;
  margin: 0; padding: 4px 0; list-style: none; max-height: 220px; overflow: auto;
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
}
.item-suggest-list li {
  padding: 8px 12px; cursor: pointer; font-size: 13px; color: var(--text);
}
.item-suggest-list li:hover, .item-suggest-list li.active {
  background: rgba(59,130,246,.18); color: #93c5fd;
}
.item-suggest-list li.empty-hint {
  cursor: default; color: var(--muted);
}
.item-suggest-list li.empty-hint:hover { background: transparent; color: var(--muted); }
.item-ac-hint { margin: 6px 0 0; font-size: 12px; color: var(--muted); max-width: 400px; }
.item-ac-hint.is-error { color: #fca5a5; }
.item-ac-hint.is-ok { color: #86efac; }
#item_name.is-invalid { border-color: #ef4444; }