:root {
  --bg: #eef2f6;
  --surface: #ffffff;
  --ink: #1f2a33;
  --muted: #5b6b76;
  --line: #d5dee6;
  --brand: #2f4f63;
  --brand-dark: #243d4d;
  --accent: #3d7ea6;
  --ok: #2e7d4f;
  --ok-bg: #e7f5ec;
  --err: #a12622;
  --err-bg: #fdecea;
  --warn: #8a5a00;
  --warn-bg: #fff6e0;
  --sidebar: #f0f4f9;
  --radius: 6px;
  --font: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: linear-gradient(180deg, #e8eef4 0%, var(--bg) 220px);
  min-height: 100vh;
}

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

.shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--sidebar);
  border-right: 1px solid var(--line);
  padding: 1.25rem 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: block;
  color: var(--brand);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.3;
  margin: 0 0 1.5rem;
  padding: 0 .5rem;
  text-decoration: none;
}

.nav a {
  display: block;
  padding: .65rem .75rem;
  border-radius: var(--radius);
  color: var(--ink);
  margin-bottom: .2rem;
}
.nav a:hover { background: #e2eaf2; text-decoration: none; }
.nav a.active {
  background: var(--brand);
  color: #fff;
}

.main {
  padding: 1.5rem 2rem 3rem;
  max-width: 1200px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.page-header h1 {
  margin: 0;
  font-size: 1.6rem;
  color: var(--brand-dark);
}
.page-header .sub {
  margin: .35rem 0 0;
  color: var(--muted);
}

.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  border: 1px solid var(--brand);
  background: var(--brand);
  color: #fff;
  border-radius: var(--radius);
  padding: .5rem .9rem;
  font: inherit;
  font-size: .92rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; color: #fff; }
.btn.secondary {
  background: #fff;
  color: var(--brand);
}
.btn.secondary:hover { background: #eef3f7; color: var(--brand-dark); }
.btn.danger { background: #8f2d2a; border-color: #8f2d2a; }
.btn.danger:hover { background: #6f201e; }
.btn.small { padding: .3rem .65rem; font-size: .85rem; }
.inline { display: inline; }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  margin-bottom: 1rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: .75rem;
  margin-bottom: 1.25rem;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .9rem 1rem;
}
.stat .label { color: var(--muted); font-size: .85rem; }
.stat .value { font-size: 1.5rem; font-weight: 700; color: var(--brand-dark); margin-top: .2rem; }

.flash, .error-banner {
  padding: .75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}
.flash { background: var(--ok-bg); color: var(--ok); border: 1px solid #b7e0c4; }
.error-banner { background: var(--err-bg); color: var(--err); border: 1px solid #f0c2bf; }

table.data {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
table.data th, table.data td {
  text-align: left;
  padding: .7rem .85rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.data th {
  background: #eceff1;
  color: #263238;
  font-weight: 600;
  font-size: .88rem;
}
table.data tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: .15rem .5rem;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
}
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.err { background: var(--err-bg); color: var(--err); }
.badge.muted { background: #eef1f4; color: var(--muted); }

.form-grid {
  display: grid;
  gap: .9rem;
  max-width: 560px;
}
label { display: block; font-weight: 600; margin-bottom: .3rem; font-size: .9rem; }
input[type=text], input[type=password], input[type=url], select {
  width: 100%;
  padding: .55rem .7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  background: #fff;
}
.hint { color: var(--muted); font-size: .85rem; margin-top: .25rem; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1rem;
  align-items: center;
}
.filters .chip {
  padding: .4rem .75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: .88rem;
}
.filters .chip.active {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.search-row {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.search-row input { max-width: 280px; }

.meta-table th {
  width: 180px;
  color: var(--muted);
  font-weight: 600;
  text-align: left;
  padding: .4rem .6rem .4rem 0;
}
.meta-table td { padding: .4rem 0; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
  background:
    radial-gradient(circle at 20% 20%, rgba(61,126,166,.18), transparent 40%),
    radial-gradient(circle at 80% 0%, rgba(47,79,99,.16), transparent 35%),
    linear-gradient(180deg, #dbe5ee, #eef2f6);
}
.login-card {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.75rem;
  box-shadow: 0 10px 30px rgba(31,42,51,.06);
}
.login-card h1 {
  margin: 0 0 .25rem;
  font-size: 1.35rem;
  color: var(--brand-dark);
}
.login-card .sub { color: var(--muted); margin: 0 0 1.25rem; }
.userbar {
  color: var(--muted);
  font-size: .85rem;
  margin-top: 2rem;
  padding: 0 .5rem;
}

.pagination {
  display: flex;
  gap: .5rem;
  align-items: center;
  margin-top: 1rem;
  color: var(--muted);
}

.empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--muted);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
.form-grid label {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  font-size: .9rem;
  color: var(--muted);
}
.form-grid label.full { grid-column: 1 / -1; }
.form-grid input,
.form-grid select,
.filter-form input,
.filter-form select {
  padding: .5rem .65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  color: var(--ink);
  background: #fff;
}
.code-block {
  background: #f6f8fa;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  overflow-x: auto;
  font-size: .85rem;
  line-height: 1.45;
}
.setup-list { padding-left: 1.25rem; line-height: 1.6; }
.pager {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-top: 1rem;
  color: var(--muted);
}
.badge.warn { background: var(--warn-bg); color: var(--warn); }

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin: 0 0 1rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: .35rem;
}
.tabs a {
  padding: .45rem .8rem;
  border-radius: var(--radius) var(--radius) 0 0;
  color: var(--ink);
  font-size: .92rem;
}
.tabs a:hover { background: #e2eaf2; text-decoration: none; }
.tabs a.active {
  background: var(--brand);
  color: #fff;
}
.tag-list { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .35rem; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  background: #e8eef4;
  color: var(--brand-dark);
  border-radius: 999px;
  padding: .15rem .55rem;
  font-size: .8rem;
  font-weight: 600;
}
.tag-remove {
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0 .1rem;
}
.history { list-style: none; padding: 0; margin: 0; }
.history li {
  padding: .75rem 0;
  border-bottom: 1px solid var(--line);
}
.history li:last-child { border-bottom: none; }
.history-time { color: var(--muted); font-size: .85rem; }
.history-actor { font-weight: 600; }
.history-event { margin-top: .15rem; }
.cert-panel { border-color: #c5d4de; }
input[type=date] {
  width: 100%;
  padding: .55rem .7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  background: #fff;
}
pre.code {
  background: #f6f8fa;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  overflow-x: auto;
  font-size: .85rem;
}

.section-title {
  margin: 0 0 .75rem;
  font-size: 1.1rem;
  color: var(--brand-dark);
}
.subsection {
  margin: 1rem 0 .5rem;
  font-size: .95rem;
  color: var(--brand-dark);
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .75rem;
  margin-bottom: .5rem;
}
.section-head .section-title { margin: 0; }
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
.two-col > .panel { margin-bottom: 0; }
.stat .delta {
  margin-top: .25rem;
  font-size: .85rem;
  color: var(--muted);
}
.usage-chart { display: block; max-width: 100%; }
.chart-axis { stroke: var(--line); stroke-width: 1; }
.chart-line { stroke: var(--accent); stroke-width: 2; }
.chart-bar { fill: var(--accent); opacity: .85; }
.chart-dot { fill: var(--accent); }
.chart-label { font-size: 11px; fill: var(--muted); }
.chart-empty { color: var(--muted); padding: 1rem 0; }
.empty-state { text-align: center; padding: 2rem 1rem; }
.empty-state p { margin: .4rem 0; }
.filter-form .form-grid { max-width: none; }

.form-grid textarea {
  padding: .5rem .65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  color: var(--ink);
  background: #fff;
  width: 100%;
}
.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: .4rem .75rem;
  margin: .5rem 0 1rem;
}
.check, .check-inline {
  display: flex;
  align-items: center;
  gap: .45rem;
  font-weight: 500;
  color: var(--ink);
}
.check-inline { margin: .35rem 0; }
.type-fields { margin: .5rem 0 1rem; }

.lineage-chain { list-style: none; padding: 0; margin: 0; }
.lineage-chain li {
  position: relative;
  padding: .6rem .75rem .6rem 1.25rem;
  border-left: 2px solid var(--line);
  margin-left: .5rem;
}
.lineage-chain li:last-child { border-left-color: transparent; }
.lineage-list { margin: .5rem 0 0; padding-left: 1.25rem; }
.filter-form .form-grid { margin-top: 0; }

  .two-col { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .nav { display: flex; flex-wrap: wrap; gap: .25rem; }
  .main { padding: 1rem; }
}