:root {
  --bg: #0b1220;
  --bg-elevated: #121a2b;
  --bg-card: #162033;
  --border: #243049;
  --text: #e8eef9;
  --muted: #93a0b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 10px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "Consolas", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(18, 26, 43, 0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand {
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
  text-decoration: none;
}
.topbar-nav {
  display: flex;
  gap: 1rem;
  align-items: center;
  font-size: 0.95rem;
}
.topbar-nav a { color: var(--muted); text-decoration: none; }
.topbar-nav a:hover { color: var(--text); }

.muted { color: var(--muted); }
.small { font-size: 0.875rem; }

.container {
  width: min(960px, 92vw);
  margin: 0 auto;
  padding: 2rem 0 3rem;
}
.container-sm { width: min(480px, 92vw); }

.hero {
  padding: 4rem 0 2rem;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}
.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 36rem;
  margin: 0 auto 1.75rem;
}
.hero-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
.card h2, .card h3 { margin-top: 0; }
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

label {
  display: block;
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  margin-bottom: 1rem;
}
input:focus, select:focus {
  outline: 2px solid rgba(59, 130, 246, 0.45);
  border-color: var(--accent);
}
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.checkbox-row input { width: auto; margin: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.1rem;
  border-radius: 8px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-secondary:hover { border-color: var(--muted); color: var(--text); }
.btn-danger {
  background: transparent;
  border-color: rgba(239, 68, 68, 0.5);
  color: #fca5a5;
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.12); }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.85rem; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.925rem;
}
.alert-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fecaca;
}
.alert-success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #bbf7d0;
}
.alert-warning {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #fde68a;
}

.secret-box {
  font-family: var(--mono);
  font-size: 0.85rem;
  word-break: break-all;
  background: var(--bg);
  border: 1px dashed var(--warning);
  padding: 0.85rem;
  border-radius: 8px;
  margin: 0.75rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.925rem;
}
th, td {
  text-align: left;
  padding: 0.7rem 0.5rem;
  border-bottom: 1px solid var(--border);
}
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-ok { background: rgba(34, 197, 94, 0.15); color: #86efac; }
.badge-revoked { background: rgba(239, 68, 68, 0.15); color: #fca5a5; }

.steps {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.step-pill {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}
.step-pill.active {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(59, 130, 246, 0.12);
}
.step-pill.done { color: var(--success); border-color: rgba(34, 197, 94, 0.4); }

/* Docs */
.docs-layout { min-height: 100vh; }
.docs-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: calc(100vh - 56px);
}
.docs-sidebar {
  border-right: 1px solid var(--border);
  background: var(--bg-elevated);
  padding: 1.25rem 1rem;
}
.docs-sidebar-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}
.docs-nav-link {
  display: block;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 0.15rem;
}
.docs-nav-link:hover { background: rgba(255,255,255,0.04); color: var(--text); text-decoration: none; }
.docs-nav-link.active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--text);
}
.docs-content {
  padding: 2rem 2.5rem 3rem;
  max-width: 760px;
}
.prose h1 { margin-top: 0; }
.prose h2 { margin-top: 1.75rem; border-bottom: 1px solid var(--border); padding-bottom: 0.35rem; }
.prose code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--bg-elevated);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
.prose pre {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
}
.prose pre code { background: none; padding: 0; }

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

@media (max-width: 720px) {
  .docs-shell { grid-template-columns: 1fr; }
  .docs-sidebar { border-right: none; border-bottom: 1px solid var(--border); }
  .docs-content { padding: 1.25rem; }
}