:root {
  --bg0: #0b0f14;
  --bg1: #121820;
  --bg2: #181f2a;
  --bg3: #212a38;
  --border: #2a3444;
  --border-strong: #3a465a;
  --text: #eef2f8;
  --text2: #9aa8bc;
  --muted: #6b788c;
  --accent: #4a90ff;
  --ok: #34c38f;
  --warn: #f3b74a;
  --bad: #f17272;
  --radius: 12px;
  --font: "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
  --mono: "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  background: linear-gradient(180deg, #0d1219 0%, #0a0e14 100%);
  color: var(--text);
  font-family: var(--font);
}

.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 48px;
}

.hidden { display: none !important; }

.card {
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.login-card {
  max-width: 420px;
  margin: 12vh auto 0;
}

.brand { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.brand-name { font-size: 22px; font-weight: 650; }
.brand-sub { color: var(--accent); font-size: 13px; font-weight: 600; }
.hint { color: var(--text2); font-size: 13px; line-height: 1.45; margin: 0 0 16px; }
.field-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  margin-bottom: 6px;
}

.input {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 13px;
  outline: none;
}
.input:focus { border-color: var(--accent); }
.mono { font-family: var(--mono); }

.btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text2);
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 12.5px;
  font-weight: 650;
  cursor: pointer;
}
.btn:hover { background: var(--bg2); color: var(--text); border-color: var(--border-strong); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { border-color: #6a3030; color: var(--bad); }
.btn.danger:hover { background: #2a1518; }
.btn.tiny { padding: 4px 8px; font-size: 11px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.error { color: var(--bad); font-size: 12.5px; margin-top: 10px; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}
.topbar h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 650;
}
.topbar .accent { color: var(--accent); }
.subtitle { margin: 4px 0 0; color: var(--muted); font-size: 12.5px; }
.topbar-actions { display: flex; gap: 8px; }

.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}
.stat {
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.stat-label {
  display: block;
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.stat-value {
  display: block;
  margin-top: 4px;
  font-size: 22px;
  font-weight: 650;
}
.stat-value.ok { color: var(--ok); }
.stat-value.warn { color: var(--warn); }
.stat-value.bad { color: var(--bad); }
.stat-value.muted { color: var(--muted); }

.create-card { margin-bottom: 14px; }
.create-card h2, .table-card h2 {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 650;
}
.form-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
  gap: 12px;
}
.row-end { display: flex; justify-content: flex-end; margin-top: 14px; }

.created-banner {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #143024;
  border: 1px solid #2f6a4f;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--ok);
  font-size: 12.5px;
}
.created-banner code { color: var(--text); font-size: 13px; }

.table-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.table-head h2 { margin: 0; }
.search { max-width: 280px; }

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}
th {
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
td {
  padding: 10px;
  border-bottom: 1px solid #1a2230;
  vertical-align: middle;
}
tr:hover td { background: #151c27; }
.key-cell { font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.actions { display: flex; gap: 6px; justify-content: flex-end; flex-wrap: wrap; }

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 650;
  border: 1px solid transparent;
}
.badge.active { color: var(--ok); background: #143024; border-color: #2f6a4f; }
.badge.expired { color: var(--warn); background: #2c2414; border-color: #6a5528; }
.badge.revoked { color: var(--bad); background: #2a1518; border-color: #6a3030; }
.badge.disabled { color: var(--muted); background: var(--bg2); border-color: var(--border); }

.toast {
  position: fixed;
  bottom: 22px;
  right: 22px;
  background: var(--bg3);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 12.5px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.45);
  z-index: 50;
}

@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .topbar { flex-direction: column; }
}