:root {
  --ink: #1a1d23;
  --ink-soft: #5c6570;
  --paper: #f3f1ec;
  --panel: #ffffff;
  --line: #e2ddd4;
  --accent: #0f6e56;
  --accent-hover: #0b5542;
  --danger: #b42318;
  --sidebar: #15181e;
  --sidebar-text: #c8cdd5;
  --sidebar-active: #dec9a4;
  --radius: 6px;
  --font: "IBM Plex Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "IBM Plex Mono", "Consolas", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(15,110,86,.18), transparent 45%),
    linear-gradient(160deg, #ece7de 0%, #dfe8e4 50%, #e8e2d8 100%);
}
.login-card {
  width: 380px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 36px 32px 28px;
  box-shadow: 0 18px 40px rgba(26,29,35,.08);
}
.login-brand {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.login-card h1 {
  margin: 0 0 6px;
  font-size: 24px;
  font-weight: 600;
}
.login-card p {
  margin: 0 0 24px;
  color: var(--ink-soft);
}
.form-item { margin-bottom: 16px; }
.form-item label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: .04em;
}
.form-item input, .form-item select, .form-item textarea {
  width: 100%;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 12px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}
.form-item textarea { height: 88px; padding: 10px 12px; resize: vertical; }
.form-item input:focus, .form-item select:focus, .form-item textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15,110,86,.12);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font: inherit;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
}
.btn:hover { background: var(--accent-hover); color: #fff; }
.btn-block { width: 100%; height: 42px; }
.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: transparent; }
.btn-danger { background: var(--danger); }
.btn-sm { height: 30px; padding: 0 10px; font-size: 12px; }

.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  background: var(--sidebar);
  color: var(--sidebar-text);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}
.brand {
  padding: 22px 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.brand-name {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #e8d5b0;
}
.brand-sub { margin-top: 4px; font-size: 12px; opacity: .55; }
.nav { padding: 12px 10px; flex: 1; overflow: auto; }
.nav-group { margin-bottom: 8px; }
.nav-group-title {
  padding: 8px 12px 4px;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .45;
}
.nav a {
  display: block;
  padding: 9px 12px;
  margin: 2px 0;
  border-radius: 6px;
  color: var(--sidebar-text);
}
.nav a:hover { background: rgba(255,255,255,.05); color: #fff; }
.nav a.active {
  background: rgba(232,213,176,.12);
  color: #e8d5b0;
}
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 56px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.topbar-user { color: var(--ink-soft); font-size: 13px; }
.content { padding: 24px; }
.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.page-head h2 { margin: 0; font-size: 20px; font-weight: 600; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}
.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}
.stat .label { color: var(--ink-soft); font-size: 12px; }
.stat .value {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 500;
}
.toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.toolbar form { display: flex; gap: 8px; }
.table-wrap { overflow: auto; }
table.data {
  width: 100%;
  border-collapse: collapse;
}
table.data th, table.data td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}
table.data th {
  font-size: 12px;
  color: var(--ink-soft);
  font-weight: 500;
  background: #faf8f4;
}
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  background: #e8f5f0;
  color: var(--accent);
}
.tag.off { background: #fbeaea; color: var(--danger); }
.actions { display: flex; gap: 8px; }
.pager { margin-top: 14px; }
.pager a, .pager span {
  display: inline-block;
  margin-right: 6px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink-soft);
}
.pager .active { background: var(--accent); color: #fff; border-color: var(--accent); }
.rule-tree { max-height: 320px; overflow: auto; border: 1px solid var(--line); border-radius: 6px; padding: 12px; }
.rule-tree label { display: block; margin: 4px 0; }
.form-actions { margin-top: 18px; display: flex; gap: 10px; }
.hint { color: var(--ink-soft); font-size: 12px; margin-top: 6px; }

@media (max-width: 960px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .sidebar { width: 180px; }
}
@media (max-width: 720px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; }
  .stats { grid-template-columns: 1fr; }
}