:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-dark: #1e40af;
  --danger: #dc2626;
  --ok: #16a34a;
  --warn: #d97706;
  --border: #e2e5ea;
}

* { box-sizing: border-box; }

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

header {
  background: #101828;
  color: #fff;
}

nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  max-width: 960px;
  margin: 0 auto;
  padding: 0.6rem 1rem;
}

nav a { color: #cbd5e1; text-decoration: none; padding: 0.25rem 0.5rem; border-radius: 4px; }
nav a:hover { color: #fff; }
nav a.active { color: #fff; background: rgba(255, 255, 255, 0.12); }
nav a.brand { font-weight: 700; color: #fff; margin-right: 0.5rem; }
nav .spacer { flex: 1; }
nav .user { color: #94a3b8; font-size: 0.9em; }
form.inline { display: inline; }

main {
  max-width: 960px;
  margin: 1.5rem auto;
  padding: 0 1rem;
}

h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; }

.banner {
  background: #fef3c7;
  border: 1px solid #fcd34d;
  color: #92400e;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  margin-bottom: 1rem;
}

.error {
  background: #fee2e2;
  border: 1px solid #fecaca;
  color: #991b1b;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
}

.hint { color: var(--muted); font-size: 0.88em; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
th, td { padding: 0.5rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); }
th { background: #f9fafb; font-size: 0.85em; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }
tr:last-child td { border-bottom: none; }
td.actions { display: flex; gap: 0.5rem; }
td code, .inline-form code { font-size: 0.9em; }

.tag {
  display: inline-block;
  font-size: 0.75em;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: #e5e7eb;
  color: #374151;
}
.tag.allow, .tag.ok { background: #dcfce7; color: #166534; }
.tag.deny, .tag.disabled { background: #fee2e2; color: #991b1b; }
.tag.warn { background: #fef3c7; color: #92400e; }

form.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  max-width: 480px;
}

form.stack label, form.stack fieldset legend { font-size: 0.85em; color: var(--muted); }
form.stack input[type="text"], form.stack input[type="password"], form.stack input[type="search"],
form.inline-form input[type="text"], form.filter input[type="search"] {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95em;
  margin-top: 0.2rem;
}
form.stack select, form.inline-form select {
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95em;
}

form.inline-form {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}
form.inline-form input[type="text"] { width: auto; flex: 1; min-width: 200px; margin-top: 0; }

button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.45rem 1rem;
  border-radius: 6px;
  font-size: 0.9em;
  cursor: pointer;
}
button:hover { background: var(--accent-dark); }

button.link {
  background: none;
  color: var(--accent);
  padding: 0.1rem 0.3rem;
  font-size: 0.85em;
  text-decoration: underline;
}
button.link:hover { background: none; color: var(--accent-dark); }
button.link.danger { color: var(--danger); }
button.link.danger:hover { color: #991b1b; }

form.filter {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
form.filter input[type="search"] { flex: 1; }

label.check { display: flex; gap: 0.5rem; align-items: center; font-size: 0.95em; }
fieldset { border: 1px solid var(--border); border-radius: 6px; padding: 0.75rem; display: flex; flex-direction: column; gap: 0.5rem; }

section { margin-top: 2rem; }

/* Login page */
body.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: #101828;
}
.login-card {
  background: var(--card);
  padding: 2rem;
  border-radius: 8px;
  width: 340px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.login-card h1 { margin: 0; font-size: 1.2rem; }
.login-card form { display: flex; flex-direction: column; gap: 0.75rem; }
.login-card label { font-size: 0.85em; color: var(--muted); }
.login-card input {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95em;
  margin-top: 0.2rem;
}