:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #1c2430;
  --muted: #5b6777;
  --line: #e4e8ee;
  --accent: #1f6feb;
  --accent-ink: #ffffff;
  --ok: #0f7b4c;
  --ok-bg: #e8f6ee;
  --warn: #9a6700;
  --warn-bg: #fff6dd;
  --bad: #b42318;
  --bad-bg: #fdecea;
  --shadow: 0 10px 30px rgba(16, 24, 40, 0.06);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

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

.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar {
  background: #132033;
  color: #d7e0ea;
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.brand { display: flex; gap: 10px; align-items: center; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--accent); color: white;
  display: grid; place-items: center; font-weight: 700;
}
.brand strong { display: block; color: #fff; }
.brand small { color: #93a4b8; }
.sidebar nav { display: flex; flex-direction: column; gap: 6px; }
.nav-link {
  color: #c5d2e0;
  padding: 10px 12px;
  border-radius: 8px;
  text-decoration: none;
}
.nav-link:hover, .nav-link.active {
  background: rgba(255,255,255,0.08);
  color: #fff;
  text-decoration: none;
}

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 28px; background: var(--panel); border-bottom: 1px solid var(--line);
}
.topbar h1 { margin: 0; font-size: 20px; }
.topbar-meta { display: flex; gap: 12px; align-items: center; color: var(--muted); }
.content { padding: 24px 28px 48px; }

.grid { display: grid; gap: 16px; }
.stats { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.stat-value { font-size: 28px; font-weight: 700; margin: 4px 0 0; }
.stat-label { color: var(--muted); font-size: 13px; }

.toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
input, select, button, textarea {
  font: inherit;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field span { font-size: 12px; color: var(--muted); }
input[type="text"], input[type="password"], input[type="email"], input[type="number"], input[type="date"], input[type="url"], select, textarea {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: #fff;
  min-width: 140px;
}
textarea { min-height: 96px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; align-items: end; }

.btn {
  border: 0;
  border-radius: 8px;
  padding: 8px 14px;
  background: var(--accent);
  color: var(--accent-ink);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn:hover { filter: brightness(1.05); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-danger { background: var(--bad); }

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { color: var(--muted); font-weight: 600; font-size: 12px; }
.code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
}
.badge-active { background: var(--ok-bg); color: var(--ok); }
.badge-revoked { background: var(--bad-bg); color: var(--bad); }
.badge-expired { background: var(--warn-bg); color: var(--warn); }

.flash {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 16px;
}
.flash-ok { background: var(--ok-bg); color: var(--ok); }
.flash-err { background: var(--bad-bg); color: var(--bad); }
.keys { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.key-chip {
  background: #fff;
  border: 1px dashed var(--ok);
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
}

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at top left, #dce8f8, var(--bg) 42%);
}
.login-card { width: min(420px, 92vw); }
.login-card h1 { margin: 0 0 6px; }
.login-card p { color: var(--muted); margin-top: 0; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.full { width: 100%; }

.muted { color: var(--muted); }
.detail-grid { display: grid; grid-template-columns: 160px 1fr; gap: 8px 16px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }