:root {
  --bg: #f3f5f8;
  --surface: #ffffff;
  --surface-subtle: #f8fafc;
  --border: #cbd5e1;
  --border-strong: #94a3b8;
  --text: #0f172a;
  --text-muted: #475569;
  --primary: #1e3a8a;
  --primary-hover: #172554;
  --focus-ring: #2563eb;
  --danger: #b91c1c;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  --success: #166534;
  --success-bg: #f0fdf4;
  --success-border: #bbf7d0;
  --warning-bg: #fffbeb;
  --warning-border: #fde68a;
  --warning-text: #92400e;
  --radius: 0.625rem;
  --shadow: 0 4px 18px rgba(15, 23, 42, 0.06);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  color: var(--text);
  background-color: var(--bg);
  display: flex;
  flex-direction: column;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--primary-hover);
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.page-shell {
  width: 100%;
  max-width: 27rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 2.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-shell-wide {
  max-width: 46rem;
  justify-content: flex-start;
  padding-top: 2rem;
}

.brand-header {
  margin-bottom: 1.25rem;
  text-align: left;
}

.brand-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  background: #e0e7ff;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  margin-bottom: 0.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem 1.25rem;
}

.card + .card {
  margin-top: 1.25rem;
}

.card-title {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-title {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.card-subtitle {
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.alert {
  padding: 0.75rem 0.9rem;
  border-radius: 0.5rem;
  font-size: 0.925rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
}

.alert-error {
  color: var(--danger);
  background-color: var(--danger-bg);
  border-color: var(--danger-border);
}

.alert-success {
  color: var(--success);
  background-color: var(--success-bg);
  border-color: var(--success-border);
}

.alert-warning {
  color: var(--warning-text);
  background-color: var(--warning-bg);
  border-color: var(--warning-border);
}

.field {
  margin-bottom: 1rem;
}

.form-fieldset {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.field-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.field-hint {
  margin: 0.3rem 0 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.field-error {
  margin: 0.3rem 0 0;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--danger);
}

.input {
  display: block;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.6rem 0.75rem;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--text);
  background-color: #ffffff;
  border: 1px solid var(--border-strong);
  border-radius: 0.5rem;
  appearance: none;
}

.input[aria-invalid="true"] {
  border-color: var(--danger);
  background-color: #fffafa;
}

.input-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.12em;
  font-size: 1.1rem;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0.75rem 0 1.1rem;
}

.checkbox-input {
  width: 1.15rem;
  height: 1.15rem;
  margin: 0;
  accent-color: var(--primary);
  flex-shrink: 0;
}

.checkbox-label {
  font-size: 0.925rem;
  color: var(--text);
  cursor: pointer;
}

.turnstile-slot {
  margin: 0.85rem 0 1rem;
  min-height: 4.1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  font-size: 0.975rem;
  font-weight: 600;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.12s ease, border-color 0.12s ease;
}

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

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--surface-subtle);
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-secondary:hover:not(:disabled) {
  background-color: #e2e8f0;
}

.btn-danger {
  background-color: #ffffff;
  color: var(--danger);
  border-color: var(--danger-border);
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--danger-bg);
  border-color: var(--danger);
}

.btn-inline {
  width: auto;
  min-height: 2.25rem;
  padding: 0.4rem 0.8rem;
  font-size: 0.875rem;
}

.divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.1rem 0;
  color: var(--text-muted);
  font-size: 0.825rem;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: var(--border);
}

.links-row {
  margin-top: 1.15rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.account-dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin: 0;
}

.account-dl dt {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.account-dl dd {
  margin: 0.1rem 0 0;
  font-size: 1rem;
  font-weight: 500;
  word-break: break-word;
}

.item-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 1rem;
  border-top: 1px solid var(--border);
}

.item-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.item-meta {
  font-size: 0.825rem;
  color: var(--text-muted);
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  background: #e0f2fe;
  color: #075985;
  margin-left: 0.4rem;
}

.badge-ok {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.qr-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  margin: 0.75rem 0 1rem;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
}

.qr-image {
  width: 12.5rem;
  height: 12.5rem;
  max-width: 100%;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  background: #ffffff;
}

.mono-box {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.85rem;
  word-break: break-all;
}

.backup-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
  list-style: none;
  padding: 0;
  margin: 0.75rem 0;
}

.backup-grid li {
  padding: 0.4rem 0.55rem;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  text-align: center;
}

.actions-stack {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 0.75rem;
}

@media (min-width: 600px) {
  .card {
    padding: 1.85rem 1.75rem;
  }

  .account-dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .item-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .actions-inline {
    flex-direction: row;
    flex-wrap: wrap;
  }
}