:root {
  --max-width: 816px;
  --gap: 0.75rem;
  --gap-lg: 1.25rem;
  --color-bg: #f6f6f7;
  --color-fg: #1d1d1f;
  --color-muted: #6b6b70;
  --color-border: #d2d2d7;
  --color-card: #ffffff;
  --color-accent: #0a58ca;
  --color-accent-fg: #ffffff;
  --color-warn: #b42318;
  --color-warn-fg: #ffffff;
  --radius: 6px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.4;
}

#app {
  min-height: 100vh;
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1rem 4rem;
}

/* ---------- Top nav (back to resources) ---------- */
.top-nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1rem 0;
}
.top-nav .back-link {
  margin-top: 0;
}

h2 {
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
}
h3 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.hint {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin: 0.25rem 0 0.75rem;
}

.error {
  color: var(--color-warn);
  font-size: 0.9rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  background: var(--color-card);
  color: var(--color-fg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.4rem 0.75rem;
  font-size: 0.9rem;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.btn:hover:not(:disabled) {
  background: #f0f0f3;
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-fg);
  border-color: var(--color-accent);
}
.btn-primary:hover:not(:disabled) {
  filter: brightness(0.95);
  background: var(--color-accent);
}
.btn-warn {
  background: var(--color-warn);
  color: var(--color-warn-fg);
  border-color: var(--color-warn);
}
.btn-warn:hover:not(:disabled) {
  filter: brightness(0.95);
  background: var(--color-warn);
}
.btn.chosen {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

/* ---------- Header ---------- */
.header-bar {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}
.export-wrap { position: relative; }
.export-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 5;
  min-width: 8rem;
}
.export-menu button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.4rem 0.75rem;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
}
.export-menu button:hover { background: #f0f0f3; }

/* ---------- Cards / Sections ---------- */
.card,
.section-1,
.section-2,
.section-3,
.generation-block {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.gen-row {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem;
  margin: 0.75rem 0 0;
}
.gen-row legend {
  padding: 0 0.4rem;
  font-weight: 600;
}

/* ---------- Form fields ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin: 0.5rem 0;
}
.field .label {
  font-size: 0.85rem;
  color: var(--color-muted);
}
.field input[type="text"],
.field select,
.field textarea {
  font: inherit;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  width: 100%;
}
.field textarea { resize: vertical; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: end;
}
.field-row > .field {
  height: 100%;
  margin: 0.5rem 0 0;
}
.field-row > .field .label {
  flex: 1;
}
.radio {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-right: 0.75rem;
  font-size: 0.9rem;
}
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-right: 1rem;
  font-size: 0.9rem;
  cursor: pointer;
}
.checkbox.is-disabled {
  color: var(--color-muted);
  cursor: not-allowed;
}
.print-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  margin: 0.5rem 0 0.75rem;
}

/* ---------- Generation block ---------- */
.gen-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--gap);
  margin-bottom: 0.5rem;
}
.gen-header h2 { margin: 0; }
.gen-prev {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}
.parent-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-lg);
}
.parent-column {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.parent-form {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #fafafb;
}
.parent-heading {
  font-size: 0.95rem;
  margin: 0 0 0.5rem;
}
.add-btn {
  width: 100%;
}
.add-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}
.is-locked .parent-form { opacity: 0.95; }

/* ---------- Dialog ---------- */
.dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
}
.dialog-backdrop[hidden] {
  display: none;
}
.dialog {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  width: min(440px, 90vw);
  display: flex;
  flex-direction: column;
}
.dialog-header {
  padding: 0.75rem 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}
.dialog-body { padding: 1rem; }
.dialog-footer {
  padding: 0.5rem 1rem 1rem;
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}
.dialog-footer button {
  font: inherit;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-card);
  cursor: pointer;
}
.dialog-footer button.btn-warn {
  background: var(--color-warn);
  color: var(--color-warn-fg);
  border-color: var(--color-warn);
}
.dialog-footer button.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-fg);
  border-color: var(--color-accent);
}
.dialog-footer button.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- Print view (hidden on screen) ---------- */
.print-view { display: none; }

/* ---------- Disclaimer page ---------- */
.disclaimer-header {
  margin-bottom: 1rem;
}
.disclaimer-header h1 {
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
}
.disclaimer-header .lede {
  color: var(--color-muted);
  margin: 0;
}
.disclaimers {
  margin: 0.5rem 0 1rem;
  padding-left: 1.25rem;
}
.disclaimers li {
  margin-bottom: 0.5rem;
}
.agree-row {
  display: flex;
  align-items: center;
  margin: 0.75rem 0;
}
.start-row {
  margin-top: 0.5rem;
}

/* ---------- Site footer (entry page) ---------- */
.site-footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.85rem;
}
.footer-disclaimer {
  margin: 0 0 0.5rem;
}
.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a {
  color: var(--color-accent);
  text-decoration: none;
}
.footer-links a:hover {
  text-decoration: underline;
}

/* ---------- Info pages (privacy, disclaimer, documentation) ---------- */
.info-page h1 {
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
}
.info-page h3 {
  margin-top: 1.25rem;
}
.info-page p,
.info-page li {
  line-height: 1.5;
}
.info-page ul {
  padding-left: 1.25rem;
}
.back-link {
  display: inline-block;
  margin-top: 1.25rem;
  color: var(--color-accent);
  text-decoration: none;
}
.back-link:hover {
  text-decoration: underline;
}
.code-sample {
  background: #f3f3f5;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.45;
  overflow-x: auto;
  white-space: pre;
}
.field-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0 1rem;
  font-size: 0.85rem;
}
.field-table th,
.field-table td {
  border: 1px solid var(--color-border);
  padding: 0.4rem 0.5rem;
  text-align: left;
  vertical-align: top;
}
.field-table th {
  background: #f3f3f5;
  font-weight: 600;
}
.field-table code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85em;
}

/* ---------- Actions page ---------- */
.actions-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--gap-lg);
}
.action-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  height: 100%;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}
.action-card-link {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.25rem;
  height: 100%;
  color: inherit;
  text-decoration: none;
}
.action-card .action-title {
  font-size: 1.05rem;
  margin: 0;
  color: var(--color-accent);
}
.action-card .action-desc {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}
.action-card:not(.is-disabled) {
  cursor: pointer;
}
.action-card:not(.is-disabled):hover,
.action-card:not(.is-disabled):focus-within {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(10, 88, 202, 0.15);
}
.action-card:not(.is-disabled):hover .action-title,
.action-card:not(.is-disabled):focus-within .action-title {
  text-decoration: underline;
}
.action-card-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius);
}
.action-card.is-disabled {
  opacity: 0.6;
}
.action-card.is-disabled .action-title {
  color: var(--color-muted);
}
.action-card.is-disabled .action-card-link {
  cursor: not-allowed;
}
.external-resources {
  margin-top: 2.5rem;
}
.external-resources-heading {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  color: var(--color-text);
}
.external-resources-note {
  margin: 0 0 var(--gap-lg);
  color: var(--color-muted);
  font-size: 0.9rem;
}
.action-card--external .action-card-link {
  position: relative;
}
.action-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-muted);
  background: var(--color-border);
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  margin-bottom: 0.15rem;
}
.action-extlink {
  font-size: 0.85em;
  margin-left: 0.15rem;
  color: var(--color-muted);
}
.actions-footer {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
}
.actions-footer-note {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.85rem;
}