:root {
  --navy: #03356B;
  --navy-dark: #022249;
  --lime: #B9CC00;
  --bg: #f4f6f9;
  --text: #1a2333;
  --muted: #64748b;
  --border: #e2e8f0;
  --red: #b91c1c;
  --green: #15803d;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Ubuntu', -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.55;
}
header.topbar {
  background: var(--navy);
  color: #fff;
  padding: 0.8rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { font-weight: 700; font-size: 1.15rem; color: #fff; text-decoration: none; }
.brand span { color: var(--lime); }
nav.mainnav a {
  color: #dbe6f5;
  text-decoration: none;
  margin-left: 1.2rem;
  font-size: 0.95rem;
}
nav.mainnav a:hover, nav.mainnav a.active { color: var(--lime); }
main { max-width: 960px; margin: 2rem auto; padding: 0 1.5rem; }
main.narrow { max-width: 480px; }
h1 { color: var(--navy); font-size: 1.6rem; margin: 0 0 1rem; }
h2 { color: var(--navy); font-size: 1.15rem; margin: 1.5rem 0 0.5rem; }
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
label { display: block; font-weight: 500; margin: 0.9rem 0 0.25rem; font-size: 0.92rem; }
input[type=text], input[type=email], input[type=password], input[type=number], select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
}
input:focus, select:focus { outline: 2px solid var(--lime); border-color: var(--navy); }
button, .btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.65rem 1.4rem;
  font-size: 1rem;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  margin-top: 1rem;
}
button:hover, .btn:hover { background: var(--navy-dark); }
.btn-lime { background: var(--lime); color: var(--navy); font-weight: 700; }
.btn-lime:hover { background: #a4b500; }
.btn-danger { background: var(--red); }
.btn-small { padding: 0.35rem 0.8rem; font-size: 0.85rem; margin-top: 0; }
.error { background: #fef2f2; border: 1px solid #fecaca; color: var(--red);
  padding: 0.7rem 1rem; border-radius: 6px; margin-bottom: 1rem; }
.notice { background: #f0fdf4; border: 1px solid #bbf7d0; color: var(--green);
  padding: 0.7rem 1rem; border-radius: 6px; margin-bottom: 1rem; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--border);
  font-size: 0.93rem; }
th { color: var(--navy); font-weight: 600; background: #f8fafc; }
.badge { display: inline-block; padding: 0.15rem 0.6rem; border-radius: 999px;
  font-size: 0.78rem; font-weight: 600; }
.badge-trial { background: #fef9c3; color: #854d0e; }
.badge-active { background: #dcfce7; color: var(--green); }
.badge-past_due { background: #ffedd5; color: #9a3412; }
.badge-suspended, .badge-archived { background: #fee2e2; color: var(--red); }
.badge-cancelled { background: #e2e8f0; color: var(--muted); }
.badge-pending_payment { background: #dbeafe; color: #1d4ed8; }
.muted { color: var(--muted); font-size: 0.9rem; }
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
.plan-card { border: 2px solid var(--border); border-radius: 10px; padding: 1.2rem;
  background: #fff; cursor: pointer; }
.plan-card.selected, .plan-card:has(input:checked) {
  border-color: var(--lime); box-shadow: 0 0 0 2px var(--lime); }
.plan-card input[type=radio] { float: right; accent-color: var(--navy); }
.plan-card h3 { color: var(--navy); margin: 0 0 0.3rem; }
.plan-price { font-size: 1.4rem; font-weight: 700; color: var(--navy); }
.plan-price small { font-size: 0.8rem; color: var(--muted); font-weight: 400; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.stat { background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 1.1rem 1.3rem; }
.stat .num { font-size: 1.6rem; font-weight: 700; color: var(--navy); }
.stat .lbl { color: var(--muted); font-size: 0.85rem; }
.qr-box { text-align: center; padding: 1rem; }
.qr-box img { width: 220px; height: 220px; }
code.secret { background: #f1f5f9; padding: 0.3rem 0.6rem; border-radius: 4px;
  font-size: 0.9rem; letter-spacing: 0.05em; }
footer { text-align: center; color: var(--muted); font-size: 0.8rem; padding: 2rem 0; }