:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --border: #e5e7eb;
  --muted: #6b7280;
  --text: #111827;
  --accent: #8b5cf6;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
  --radius: 16px;
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

.shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 20px 72px;
}

.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(139, 92, 246, 0.05));
  border: 1px solid rgba(139, 92, 246, 0.18);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero__brand {
  display: flex;
  gap: 14px;
  align-items: center;
}

.brand__logo {
  width: 68px;
  height: 68px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid rgba(139, 92, 246, 0.25);
  box-shadow: var(--shadow);
}

.eyebrow {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-size: 12px;
  margin: 0 0 4px;
}

h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.3px;
}

.lede {
  margin: 6px 0 0;
  color: var(--muted);
  max-width: 520px;
}

.badge {
  background: rgba(255,255,255,0.8);
  color: var(--accent);
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.content {
  margin-top: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0;
}

.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}

.card__body {
  padding: 18px 20px 22px;
}

.subdued { color: var(--muted); margin: 4px 0 0; }

.plan-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0 18px;
}

.title { margin: 0; font-weight: 700; }
.muted { margin: 6px 0 0; color: var(--muted); }

.price {
  display: flex;
  align-items: baseline;
  gap: 3px;
  font-weight: 700;
}
.currency { color: var(--muted); }
.amount { font-size: 30px; }
.interval { color: var(--muted); }

.pill {
  background: rgba(139, 92, 246, 0.1);
  color: var(--accent);
  padding: 8px 12px;
  border-radius: 12px;
  font-weight: 600;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 6px;
}

.fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field span { color: var(--muted); font-size: 14px; }
.field input {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: 12px 14px;
  font-size: 15px;
}
.field input[readonly] { color: var(--accent); }

.hint { color: var(--muted); font-size: 13px; margin: 4px 0 0; }

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.actions a {
  text-decoration: none;
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: #fff;
  box-shadow: 0 10px 24px rgba(124, 58, 237, 0.25);
}
.btn-ghost {
  background: #f8fafc;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn:hover { transform: translateY(-1px); }

.status {
  margin-top: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  font-weight: 600;
}
.status--ok {
  background: #ecfeff;
  border: 1px solid #a5f3fc;
  color: #0e7490;
}
.status--error {
  background: #fef2f2;
  border: 1px solid #fecdd3;
  color: #b91c1c;
}

@media (max-width: 720px) {
  .hero { flex-direction: column; align-items: flex-start; }
  .card__header { flex-direction: column; align-items: flex-start; }
  .actions { flex-direction: column; }
  .btn { width: 100%; text-align: center; }
}