:root {
  --ink: #1a2430;
  --muted: #607181;
  --line: #d8e0e7;
  --panel: #ffffff;
  --page: #eef2f5;
  --accent: #006f78;
  --accent-dark: #064f58;
  --gold: #c18729;
  --danger: #a83a2e;
  --danger-bg: #fdeeec;
  --ok-bg: #e4f3f4;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--page);
  color: var(--ink);
}

header {
  background: linear-gradient(180deg, #07818b, var(--accent));
  color: #fff;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header h1 { font-size: 18px; margin: 0; }

#logoutBtn {
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}

main { max-width: 1000px; margin: 0 auto; padding: 24px; }

nav.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

nav.tabs button {
  background: #fff;
  border: 1px solid var(--line);
  padding: 10px 18px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
}

nav.tabs button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
}

.card {
  background: var(--panel);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.card h2 { margin-top: 0; font-size: 16px; }

.form-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.form-row label {
  display: flex;
  flex-direction: column;
  font-size: 12px;
  color: var(--muted);
  gap: 4px;
  flex: 1;
  min-width: 160px;
}

input, select {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-size: 14px;
  background: #f7f9fb;
}

button.primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}

button.primary:hover { background: var(--accent-dark); }

button.secondary {
  background: #fff;
  color: var(--accent-dark);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  margin-right: 6px;
}

button.danger {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid #f3c9c2;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  margin-right: 6px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
}

th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }

.badge {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.badge.active { background: var(--ok-bg); color: var(--accent-dark); }
.badge.revoked { background: var(--danger-bg); color: var(--danger); }

.hidden { display: none !important; }

#loginScreen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

#loginScreen .card { width: 360px; }

.muted { color: var(--muted); font-size: 12px; }

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--accent-dark);
  color: #fff;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 13px;
  max-width: 360px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.toast.error { background: var(--danger); }

code.key {
  font-family: "SF Mono", Consolas, monospace;
  background: #f0f4f6;
  padding: 8px 12px;
  border-radius: 8px;
  display: inline-block;
  font-size: 16px;
  letter-spacing: 1px;
  margin: 8px 0;
}