:root {
  --bg: #f6f7f9;
  --card: #fff;
  --border: #e3e6ea;
  --text: #1f2933;
  --muted: #6b7280;
  --accent: #059669;
  --danger: #dc2626;
  --warning: #b45309;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
}

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

h1 { font-size: 1.4rem; margin: 0; display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
h2 { font-size: 1.05rem; margin: 0 0 0.75rem; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: #1f2937;
}
.topbar .brand { color: #fff; font-weight: 700; }
.topbar nav { display: flex; align-items: center; gap: 1.25rem; }
.topbar nav a, .topbar .link { color: #d1d5db; }

.container { max-width: 1200px; margin: 0 auto; padding: 1.5rem; }

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.card.flush { padding: 0; overflow-x: auto; }
.card.narrow { max-width: 420px; margin: 3rem auto; }
.pad { padding: 1rem 1rem 0; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1rem; }
.grid-2 > .card { margin-bottom: 1rem; }

.form { display: grid; gap: 0.9rem; }
.form label { display: grid; gap: 0.3rem; font-size: 0.9rem; font-weight: 600; }
.form label.inline { display: flex; align-items: center; gap: 0.5rem; font-weight: 400; }
.grid-2 label { margin-bottom: 0.9rem; }

input, select, textarea {
  font: inherit;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font-weight: 400;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  font: inherit;
  cursor: pointer;
}
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); }
.btn.small-btn { padding: 0.15rem 0.55rem; font-size: 0.8rem; }
.key-cell { white-space: nowrap; }
.key-cell .btn { margin-left: 0.4rem; }
.link { background: none; border: 0; padding: 0; font: inherit; cursor: pointer; }

.actions { display: flex; justify-content: flex-end; gap: 0.5rem; flex-wrap: wrap; }
.actions.left { justify-content: flex-start; margin-top: 1rem; }
.actions form { margin: 0; }

.filters { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.filters input { flex: 1; max-width: 28rem; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.65rem 1rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); background: #fafbfc; }

.details { display: grid; grid-template-columns: 9rem 1fr; gap: 0.45rem 1rem; margin: 0; }
.details dt { color: var(--muted); }
.details dd { margin: 0; }

.muted { color: var(--muted); font-size: 0.85rem; }
.mono { font-family: ui-monospace, Consolas, monospace; }
.small { font-size: 0.8rem; word-break: break-all; }
.pre { white-space: pre-wrap; }
.key { display: inline-block; margin-top: 0.4rem; padding: 0.3rem 0.6rem; background: #f3f4f6; border-radius: 4px; font-size: 1.05rem; user-select: all; }
summary { cursor: pointer; }

.flash {
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--accent) 8%, #fff);
  font-weight: 600;
  user-select: all;
}

.error { color: var(--danger); font-weight: 500; font-size: 0.85rem; }

.badge { display: inline-block; padding: 0.1rem 0.55rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-active { background: #d1fae5; color: #065f46; }
.badge-expired { background: #fee2e2; color: #991b1b; }
.badge-revoked { background: #e5e7eb; color: #374151; }
.badge-warning { background: #fef3c7; color: var(--warning); }

.extend { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.extend-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.extend-row input[type="text"] { flex: 1; min-width: 12rem; }
.change del { color: var(--muted); }
.nowrap { white-space: nowrap; }

.pager { display: flex; align-items: center; justify-content: flex-end; gap: 0.5rem; }

@media (max-width: 760px) {
  .grid-2 { grid-template-columns: 1fr; }
  .filters { flex-wrap: wrap; }
}