:root {
  --brand-green: #128c4a;
  --brand-green-dark: #0f6f3d;
  --soft-green: #eefaf2;
  --ink: #1f2933;
  --muted: #667085;
  --line: #dfe7e2;
  --danger: #b42318;
  --warning: #b54708;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #f6fbf7;
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--brand-green); }

.page {
  min-height: 100vh;
  padding: 28px 16px;
}

.shell {
  max-width: 1120px;
  margin: 0 auto;
}

.auth-shell {
  max-width: 480px;
  margin: 0 auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.logo {
  width: min(260px, 76vw);
  height: auto;
}

.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav a, .nav button {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  color: var(--ink);
  padding: 10px 14px;
  text-decoration: none;
  font-weight: 700;
}

.nav a.active {
  background: var(--soft-green);
  border-color: var(--brand-green);
  color: var(--brand-green-dark);
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(16, 24, 40, 0.06);
  padding: 20px;
  margin-bottom: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.two-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.metric {
  background: var(--soft-green);
  border-radius: 14px;
  padding: 16px;
}

.metric .label, .muted {
  color: var(--muted);
  font-size: 0.92rem;
}

.metric .value {
  font-size: 1.35rem;
  font-weight: 800;
  margin-top: 6px;
}

.btn {
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 800;
  padding: 12px 16px;
  text-decoration: none;
}

.btn-primary {
  background: var(--brand-green);
  color: #fff;
}

.btn-primary:hover { background: var(--brand-green-dark); }

.btn-secondary {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
}

.btn-danger {
  background: #fef3f2;
  color: var(--danger);
  border: 1px solid #fecdca;
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

label {
  display: block;
  color: var(--ink);
  font-weight: 700;
  margin: 14px 0 7px;
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  font: inherit;
  background: #fff;
}

.badge {
  display: inline-flex;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.82rem;
  font-weight: 800;
  background: var(--soft-green);
  color: var(--brand-green-dark);
}

.badge.warn { background: #fffaeb; color: var(--warning); }
.badge.danger { background: #fef3f2; color: var(--danger); }

.alert {
  border-radius: 14px;
  margin-bottom: 16px;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--line);
}

.alert.error {
  background: #fef3f2;
  border-color: #fecdca;
  color: var(--danger);
}

.alert.success {
  background: var(--soft-green);
  border-color: #b7e4c7;
  color: var(--brand-green-dark);
}

.table-wrap { overflow-x: auto; }

table {
  border-collapse: collapse;
  min-width: 760px;
  width: 100%;
}

th, td {
  border-bottom: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.86rem;
}

.plan-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.plan-card {
  border: 2px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  background: #fff;
  cursor: pointer;
}

.plan-card.selected {
  border-color: var(--brand-green);
  background: var(--soft-green);
}

.hidden { display: none !important; }

@media (max-width: 860px) {
  .grid, .two-grid, .plan-list { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .nav { width: 100%; }
  .nav a, .nav button { flex: 1; text-align: center; }
}