:root {
  --ink: #1b2733;
  --muted: #5b6673;
  --line: #d7dbe0;
  --paper: #f6f7f4;
  --surface: #ffffff;
  --surface-soft: #edf1ee;
  --teal: #1f7a6d;
  --teal-dark: #165f55;
  --rust: #b4573e;
  --blue: #2d5d8f;
  --gold: #a97923;
  --shadow: 0 18px 45px rgba(27, 39, 51, 0.12);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.65rem, 7vw, 6.4rem);
  letter-spacing: 0;
  line-height: 0.95;
  margin-bottom: 18px;
  max-width: 1050px;
  overflow-wrap: anywhere;
}

h2 {
  font-size: clamp(1.35rem, 2.5vw, 2.05rem);
  line-height: 1.12;
  margin-bottom: 10px;
}

h3 {
  font-size: 1.02rem;
  line-height: 1.25;
  margin-bottom: 8px;
}

.site-header {
  align-items: center;
  background: rgba(246, 247, 244, 0.95);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px clamp(18px, 4vw, 52px);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 12px;
  min-width: 250px;
  text-decoration: none;
}

.brand-mark {
  height: 44px;
  width: 44px;
}

.brand-name {
  display: block;
  font-size: 1.02rem;
  font-weight: 800;
}

.brand-line {
  color: var(--muted);
  display: block;
  font-size: 0.78rem;
}

.site-nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.site-nav a {
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.92rem;
  padding: 8px 10px;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: var(--surface-soft);
  color: var(--ink);
  outline: none;
}

.builder-section {
  padding: clamp(24px, 4vw, 50px);
}

.builder-intro {
  margin-bottom: 24px;
  max-width: none;
}

.builder-intro p:not(.eyebrow),
.section-heading p,
.standard-section p,
.article-grid p,
.data-grid p,
.faq-list p,
.edit-note {
  color: var(--muted);
}

.builder-intro p.tagline {
  color: var(--ink);
  font-size: clamp(1.2rem, 2.2vw, 1.65rem);
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 14px;
  max-width: 780px;
}

.builder-intro .intro-summary {
  max-width: none;
  text-wrap: balance;
}

.eyebrow {
  color: var(--teal-dark);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 9px;
  text-transform: uppercase;
}

.builder-workspace {
  align-items: start;
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(320px, 0.78fr) minmax(480px, 1.22fr);
}

.builder-controls,
.preview-area {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.control-panel,
.integrity-panel,
.document-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  min-width: 0;
}

.control-panel {
  padding: 16px;
}

.configuration-panel > div {
  display: grid;
  gap: 12px;
}

.panel-heading h2,
.integrity-panel h2 {
  font-size: 1.05rem;
  margin: 0;
}

.mode-tabs,
.document-tabs {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 3px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 3px;
}

.mode-tab,
.document-tab {
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  min-height: 40px;
  padding: 8px 10px;
}

.mode-tab.active,
.document-tab.active {
  background: var(--surface);
  color: var(--ink);
  font-weight: 750;
  box-shadow: 0 1px 4px rgba(27, 39, 51, 0.12);
}

.template-list {
  display: grid;
  gap: 10px;
}

.template-option {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  display: grid;
  gap: 4px;
  padding: 13px;
  text-align: left;
  width: 100%;
}

.template-option:hover,
.template-option:focus-visible {
  border-color: var(--teal);
  outline: none;
}

.template-option.active {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(31, 122, 109, 0.14);
}

.template-title {
  font-weight: 800;
}

.template-summary {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 650;
}

.template-description {
  color: var(--muted);
  font-size: 0.86rem;
}

.field-grid {
  display: grid;
  gap: 12px;
}

.field-grid label {
  display: grid;
  gap: 6px;
}

.field-grid span,
.module-option strong {
  font-size: 0.84rem;
}

.field-grid span {
  color: var(--muted);
  font-weight: 750;
}

.field-grid input,
.field-grid select,
.section-editor {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  min-height: 42px;
  padding: 9px 10px;
  width: 100%;
}

.field-grid input:focus,
.field-grid select:focus,
.section-editor:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(31, 122, 109, 0.15);
  outline: none;
}

.quick-options {
  display: grid;
  gap: 10px;
}

.module-groups {
  display: grid;
  gap: 10px;
}

.module-group {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.module-group summary {
  background: var(--surface-soft);
  cursor: pointer;
  font-weight: 800;
  padding: 11px 12px;
}

.module-option-list {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.module-option {
  align-items: flex-start;
  display: flex;
  gap: 10px;
}

.module-option input {
  accent-color: var(--teal);
  flex: 0 0 auto;
  margin-top: 3px;
}

.module-option span span {
  color: var(--muted);
  display: block;
  font-size: 0.82rem;
  margin-top: 2px;
}

.integrity-panel {
  align-items: start;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(150px, 0.6fr) minmax(280px, 1fr);
  padding: 16px;
}

.integrity-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.integrity-item {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  display: grid;
  gap: 3px;
  padding: 9px;
}

.integrity-item span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.integrity-item strong {
  font-size: 0.9rem;
}

.integrity-notes {
  border-top: 1px solid var(--line);
  grid-column: 1 / -1;
  padding-top: 10px;
}

.integrity-notes p {
  color: var(--muted);
  font-size: 0.86rem;
  margin: 0;
}

.integrity-notes p + p {
  margin-top: 6px;
}

.integrity-notes .review {
  color: var(--gold);
  font-weight: 700;
}

.integrity-notes .error {
  color: var(--rust);
  font-weight: 800;
}

.document-panel {
  overflow: hidden;
}

.document-toolbar {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 14px;
  justify-content: space-between;
  padding: 14px;
}

.document-tabs {
  flex: 0 1 360px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.document-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.text-action,
.primary-action,
.secondary-action {
  border-radius: 6px;
  min-height: 40px;
  padding: 8px 12px;
}

.text-action,
.secondary-action {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
}

.text-action:hover,
.text-action:focus-visible,
.secondary-action:hover,
.secondary-action:focus-visible {
  border-color: var(--ink);
  outline: none;
}

.primary-action {
  background: var(--teal);
  border: 1px solid var(--teal);
  color: #fff;
  font-weight: 750;
}

.primary-action:hover,
.primary-action:focus-visible {
  background: var(--teal-dark);
  outline: none;
}

.edit-note {
  border-bottom: 1px solid var(--line);
  font-size: 0.86rem;
  margin: 0;
  padding: 11px 14px;
}

.document-preview {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.document-title-block {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.document-title-block h2 {
  margin: 0;
}

.policy-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.policy-section summary {
  align-items: center;
  background: #fff;
  cursor: pointer;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  padding: 11px 12px;
}

.section-title {
  font-weight: 800;
}

.section-status {
  background: var(--surface-soft);
  border-radius: 999px;
  color: var(--muted);
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  margin-left: 8px;
  padding: 3px 8px;
  text-transform: uppercase;
}

.section-status.edited {
  background: #fff3e6;
  color: var(--gold);
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.section-actions button {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font-size: 0.8rem;
  min-height: 32px;
  padding: 5px 8px;
}

.section-actions button:hover,
.section-actions button:focus-visible {
  border-color: var(--teal);
  outline: none;
}

.section-text {
  background: #101a24;
  color: #f2f7f6;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.84rem;
  line-height: 1.58;
  margin: 0;
  max-height: 380px;
  overflow: auto;
  padding: 15px;
  white-space: pre-wrap;
}

.section-editor {
  border-radius: 0;
  display: block;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  min-height: 220px;
  resize: vertical;
}

.standard-section,
.research-section,
.articles-section,
.faq-section {
  border-top: 1px solid var(--line);
  padding: clamp(42px, 6vw, 78px) clamp(18px, 5vw, 72px);
}

.standard-section,
.articles-section {
  background: var(--surface);
}

.section-inner {
  margin: 0 auto;
  max-width: 1180px;
}

.split-layout {
  align-items: center;
  display: grid;
  gap: 30px;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
}

.principle-list {
  display: grid;
  gap: 10px;
}

.principle-list span {
  background: var(--ink);
  border-radius: 6px;
  color: #fff;
  font-weight: 750;
  padding: 12px;
}

.section-heading {
  max-width: 760px;
}

.data-grid,
.article-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
}

.data-grid article,
.article-grid article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.data-value {
  color: var(--blue);
  display: block;
  font-size: 2.15rem;
  font-weight: 850;
  line-height: 1;
  margin-bottom: 14px;
}

.article-label {
  color: var(--rust);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.faq-list {
  display: grid;
  gap: 10px;
  margin-top: 20px;
  max-width: 860px;
}

.faq-list details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
  padding: 14px 16px;
}

.faq-list p {
  border-top: 1px solid var(--line);
  margin: 0;
  padding: 14px 16px 16px;
}

.change-dialog {
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  color: var(--ink);
  max-width: min(560px, calc(100vw - 32px));
  padding: 0;
}

.change-dialog::backdrop {
  background: rgba(27, 39, 51, 0.36);
}

.change-dialog form {
  display: grid;
  gap: 12px;
  padding: 20px;
}

.change-dialog h2 {
  margin: 0;
}

.change-dialog p {
  color: var(--muted);
  margin: 0;
  white-space: pre-line;
}

.dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
  padding: 22px clamp(18px, 5vw, 72px);
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--ink);
  outline: none;
  text-decoration: underline;
}

[hidden] {
  display: none !important;
}

@media (max-width: 1120px) {
  .builder-workspace,
  .split-layout {
    grid-template-columns: 1fr;
  }

  .integrity-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand {
    min-width: 0;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .document-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .document-tabs {
    flex-basis: auto;
  }

  .document-actions {
    justify-content: flex-start;
  }

  .data-grid,
  .article-grid,
  .integrity-grid {
    grid-template-columns: 1fr;
  }

  .policy-section summary {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .brand-line {
    display: none;
  }

  .mode-tabs {
    grid-template-columns: 1fr;
  }

  .text-action,
  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .dialog-actions {
    justify-content: stretch;
  }
}