:root {
  --bg: #f3f6fb;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --text: #111827;
  --muted: #64748b;
  --line: #d7dee9;
  --blue: #1d4ed8;
  --blue-dark: #1e3a8a;
  --green: #047857;
  --amber: #b45309;
  --red: #b91c1c;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

.shell {
  width: min(1320px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.app-header,
.app-section,
.chapter-card,
.form-card,
.form-index,
.preview-panel,
.report-chapter,
.error-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.app-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 22px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(1.65rem, 2.6vw, 2.4rem);
  line-height: 1.1;
}

h2 {
  margin: 0 0 18px;
  font-size: 1.25rem;
}

h3 {
  margin: 22px 0 12px;
  font-size: 1rem;
}

p {
  color: var(--muted);
}

.header-actions,
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.btn {
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  text-decoration: none;
  font-weight: 800;
}

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

.btn.secondary {
  background: #e2e8f0;
  color: #0f172a;
}

.app-form {
  margin-top: 18px;
}

.app-section,
.chapter-card,
.form-card,
.preview-panel,
.report-chapter,
.error-panel {
  padding: 22px;
}

.form-workspace {
  align-items: start;
  display: grid;
  gap: 18px;
  grid-template-columns: 220px minmax(0, 1fr);
}

.form-stack {
  display: grid;
  gap: 14px;
}

.chapter-card,
.form-card {
  --chapter-accent: var(--blue);
  --chapter-soft: #eff6ff;
  --chapter-line: #bfdbfe;
  --chapter-text: var(--blue-dark);
}

.chapter-tone-1 {
  --chapter-accent: #0f766e;
  --chapter-soft: #ecfdf5;
  --chapter-line: #99f6e4;
  --chapter-text: #115e59;
}

.chapter-tone-2 {
  --chapter-accent: #2563eb;
  --chapter-soft: #eff6ff;
  --chapter-line: #bfdbfe;
  --chapter-text: #1e3a8a;
}

.chapter-tone-3 {
  --chapter-accent: #b45309;
  --chapter-soft: #fffbeb;
  --chapter-line: #fde68a;
  --chapter-text: #92400e;
}

.chapter-tone-4 {
  --chapter-accent: #be123c;
  --chapter-soft: #fff1f2;
  --chapter-line: #fecdd3;
  --chapter-text: #9f1239;
}

.chapter-tone-5 {
  --chapter-accent: #6d28d9;
  --chapter-soft: #f5f3ff;
  --chapter-line: #ddd6fe;
  --chapter-text: #5b21b6;
}

.chapter-tone-6 {
  --chapter-accent: #047857;
  --chapter-soft: #f0fdf4;
  --chapter-line: #bbf7d0;
  --chapter-text: #166534;
}

.chapter-tone-7 {
  --chapter-accent: #c2410c;
  --chapter-soft: #fff7ed;
  --chapter-line: #fed7aa;
  --chapter-text: #9a3412;
}

.chapter-tone-8 {
  --chapter-accent: #0891b2;
  --chapter-soft: #ecfeff;
  --chapter-line: #a5f3fc;
  --chapter-text: #155e75;
}

.chapter-tone-9 {
  --chapter-accent: #475569;
  --chapter-soft: #f8fafc;
  --chapter-line: #cbd5e1;
  --chapter-text: #334155;
}

.form-index {
  display: grid;
  gap: 6px;
  padding: 12px;
  position: sticky;
  top: 170px;
}

.form-index a {
  align-items: center;
  border-left: 3px solid transparent;
  border-radius: 6px;
  color: #334155;
  display: flex;
  gap: 9px;
  min-height: 34px;
  padding: 7px 8px;
  text-decoration: none;
  font-weight: 800;
}

.form-index .chapter-nav-item {
  border-left-color: var(--chapter-line);
}

.form-index a:hover,
.form-index a:focus {
  background: var(--chapter-soft);
  color: var(--chapter-text);
  outline: 0;
}

.form-index span {
  align-items: center;
  background: var(--chapter-soft);
  border: 1px solid var(--chapter-line);
  border-radius: 6px;
  color: var(--chapter-text);
  display: inline-flex;
  font-size: 0.75rem;
  justify-content: center;
  min-width: 34px;
  padding: 3px 6px;
}

.chapter-card {
  align-items: center;
  background: var(--chapter-soft);
  border-color: var(--chapter-line);
  border-left: 6px solid var(--chapter-accent);
  display: flex;
  gap: 16px;
  margin-top: 12px;
  padding: 18px 20px;
  position: sticky;
  scroll-margin-top: 150px;
  top: 170px;
  z-index: 8;
}

.chapter-card:first-child {
  margin-top: 0;
}

.chapter-marker {
  align-items: center;
  background: var(--chapter-accent);
  border-radius: 8px;
  color: #fff;
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 0.9rem;
  font-weight: 900;
  justify-content: center;
  min-height: 44px;
  min-width: 54px;
  padding: 0 10px;
}

.chapter-card h2 {
  margin: 0;
  color: var(--chapter-text);
  font-size: 1.2rem;
}

.form-card {
  border-left: 4px solid var(--chapter-accent);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.06);
  overflow: hidden;
  padding: 0;
  scroll-margin-top: 150px;
}

.form-card-header {
  align-items: center;
  background: var(--chapter-soft);
  border-bottom: 1px solid var(--chapter-line);
  display: flex;
  gap: 12px;
  padding: 14px 16px;
}

.form-card-header h3 {
  margin: 0;
  color: var(--chapter-text);
  font-size: 1rem;
}

.form-card-body {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.wide-card .form-card-body {
  padding: 0;
}

.wide-card .table-wrap,
.wide-card .cost-list {
  border: 0;
  border-radius: 0;
}

.computed-card .form-card-body {
  background: #fbfdff;
}

.computed-panel {
  border: 1px dashed #bfdbfe;
  border-radius: 8px;
  background: #eff6ff;
  color: #1e3a8a;
  font-weight: 800;
  padding: 12px;
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 14px;
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.span-2 {
  grid-column: 1 / -1;
}

.span-3 {
  grid-column: 1 / -1;
}

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

.field span {
  color: #334155;
  font-size: 0.82rem;
  font-weight: 800;
}

.field small {
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 9px 10px;
}

.form-card input:focus,
.form-card select:focus,
.form-card textarea:focus {
  border-color: var(--chapter-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--chapter-accent) 16%, transparent);
  outline: 0;
}

select[multiple],
.multi-select {
  min-height: 190px;
  padding: 6px;
}

select[multiple] option,
.multi-select option {
  border-radius: 4px;
  padding: 7px 8px;
  white-space: normal;
}

.caen-field {
  border: 1px solid var(--chapter-line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--chapter-soft), #fff 68%);
  padding: 12px;
}

.caen-source[hidden] {
  display: none;
}

.caen-search-row {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr) auto;
}

.caen-search {
  min-height: 44px;
}

.caen-search:focus {
  border-color: var(--chapter-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--chapter-accent) 16%, transparent);
  outline: 0;
}

.btn.caen-add {
  background: var(--chapter-accent);
  color: #fff;
  min-width: 110px;
}

.caen-results {
  display: grid;
  gap: 6px;
}

.caen-result {
  align-items: start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  cursor: pointer;
  display: grid;
  gap: 6px;
  grid-template-columns: 62px minmax(0, 1fr);
  padding: 9px 10px;
  text-align: left;
}

.caen-result:hover,
.caen-result:focus {
  border-color: var(--chapter-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--chapter-accent) 16%, transparent);
  outline: 0;
}

.caen-result strong {
  color: var(--chapter-text);
}

.caen-result span {
  color: #334155;
  font-size: 0.9rem;
  font-weight: 700;
}

.caen-selected {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 38px;
}

.caen-chip {
  align-items: center;
  background: #fff;
  border: 1px solid var(--chapter-line);
  border-radius: 6px;
  color: var(--chapter-text);
  display: inline-flex;
  gap: 8px;
  max-width: 100%;
  padding: 7px 8px;
}

.caen-chip span {
  color: inherit;
  font-size: 0.84rem;
  overflow-wrap: anywhere;
}

.caen-remove {
  align-items: center;
  background: var(--chapter-accent);
  border: 0;
  border-radius: 999px;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 1rem;
  font-weight: 900;
  height: 24px;
  justify-content: center;
  line-height: 1;
  padding: 0;
  width: 24px;
}

.caen-empty {
  align-items: center;
  border: 1px dashed var(--chapter-line);
  border-radius: 6px;
  color: var(--muted);
  display: flex;
  font-size: 0.86rem;
  min-height: 38px;
  padding: 8px 10px;
  width: 100%;
}

.address-field {
  background: #fff;
  border: 1px solid var(--chapter-line);
  border-radius: 8px;
  display: grid;
  gap: 10px;
  padding: 12px;
}

.address-field > span {
  color: var(--chapter-text);
  font-size: 0.86rem;
  font-weight: 900;
}

.address-grid {
  align-items: end;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.address-field .field {
  gap: 4px;
}

.address-field .field span {
  font-size: 0.76rem;
}

.address-field input,
.address-field select {
  min-height: 36px;
  padding: 7px 8px;
}

.address-county,
.address-locality {
  grid-column: span 3;
}

.address-street {
  grid-column: span 4;
}

.address-number,
.address-small {
  grid-column: span 2;
}

.address-postal {
  grid-column: span 4;
}

.surface-field {
  background: #fff;
  border: 1px solid var(--chapter-line);
  border-radius: 8px;
  display: grid;
  gap: 10px;
  padding: 12px;
}

.surface-field > span {
  color: var(--chapter-text);
  font-size: 0.86rem;
  font-weight: 900;
}

.surface-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.minimal-requirements-panel {
  display: grid;
  gap: 10px;
}

.minimal-requirement-card {
  background: linear-gradient(180deg, var(--chapter-soft), #fff 72%);
  border: 1px solid var(--chapter-line);
  border-radius: 8px;
  display: grid;
  gap: 10px;
  padding: 12px;
}

.minimal-requirement-card[hidden] {
  display: none;
}

.minimal-requirement-head {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.minimal-requirement-head strong {
  background: var(--chapter-accent);
  border-radius: 6px;
  color: #fff;
  display: inline-flex;
  font-size: 0.8rem;
  padding: 5px 8px;
}

.minimal-requirement-head span {
  color: var(--chapter-text);
  font-size: 0.92rem;
  font-weight: 900;
}

.minimal-requirement-card ul {
  columns: 2;
  margin: 0;
  padding-left: 18px;
}

.minimal-requirement-card li {
  break-inside: avoid;
  color: #334155;
  font-size: 0.88rem;
  line-height: 1.45;
  margin: 0 0 7px;
}

textarea {
  min-height: 92px;
  resize: vertical;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.check,
.inline-check {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-soft);
  padding: 10px;
}

.inline-check {
  border: 0;
  background: transparent;
  padding: 0;
}

.check input,
.inline-check input {
  width: auto;
  min-height: auto;
  margin-top: 3px;
}

.inline-check em {
  color: var(--red);
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 800;
}

.check em {
  color: var(--red);
  display: block;
  font-size: 0.76rem;
  font-style: normal;
  font-weight: 900;
  margin-top: 4px;
}

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

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

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

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #eff6ff;
  color: var(--blue-dark);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.measure-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 14px;
  padding: 14px;
  background: #fff;
}

.measure-block h3 {
  margin-top: 0;
}

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

.cost-row {
  display: grid;
  grid-template-columns: minmax(160px, 1.4fr) repeat(3, minmax(120px, 1fr));
  gap: 10px;
  align-items: end;
  border-bottom: 1px solid var(--line);
  background: #fff;
  padding: 12px;
}

.cost-row:last-child {
  border-bottom: 0;
}

.form-actions {
  justify-content: flex-end;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.report-chapter,
.preview-panel {
  margin-top: 18px;
}

.chapter-text {
  line-height: 1.7;
}

.structured-body {
  color: #334155;
}

.chapter-intro {
  margin-bottom: 18px;
}

.chapter-intro p,
.subchapter-content p {
  margin: 0 0 8px;
}

.subchapter {
  border-top: 1px solid var(--line);
  margin-top: 18px;
  padding-top: 14px;
}

.subchapter:first-child {
  border-top: 0;
  margin-top: 0;
  padding-top: 0;
}

.subchapter-title {
  align-items: center;
  display: flex;
  gap: 10px;
  margin: 0 0 10px;
  color: #0f172a;
  font-size: 1rem;
}

.subchapter-no {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 6px;
  color: var(--blue);
  display: inline-flex;
  justify-content: center;
  min-width: 44px;
  padding: 3px 7px;
  font-size: 0.84rem;
  font-weight: 900;
}

.form-card-header .subchapter-no {
  background: #fff;
  border-color: var(--chapter-line);
  color: var(--chapter-text);
}

.data-line {
  display: grid;
  grid-template-columns: minmax(180px, 0.34fr) minmax(0, 1fr);
  gap: 12px;
}

.data-line strong {
  color: #334155;
}

.structured-list {
  margin: 8px 0 12px 22px;
  padding-left: 18px;
}

.structured-list li {
  margin-bottom: 6px;
}

.badge {
  border-radius: 999px;
  display: inline-flex;
  padding: 4px 8px;
  font-size: 0.78rem;
  font-weight: 900;
}

.badge.ok {
  background: #dcfce7;
  color: var(--green);
}

.badge.warn {
  background: #fef3c7;
  color: var(--amber);
}

.badge.danger {
  background: #fee2e2;
  color: var(--red);
}

.report-table small {
  color: var(--muted);
}

@media (max-width: 900px) {
  .app-header {
    align-items: flex-start;
    flex-direction: column;
    position: static;
  }

  .form-workspace {
    grid-template-columns: 1fr;
  }

  .form-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    position: static;
  }

  .form-index a {
    justify-content: flex-start;
  }

  .chapter-card {
    align-items: flex-start;
    top: 10px;
    z-index: 9;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .caen-search-row,
  .check-grid,
  .risk-source-grid,
  .cost-row,
  .data-line {
    grid-template-columns: 1fr;
  }

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

  .address-county,
  .address-locality,
  .address-street,
  .address-number,
  .address-small,
  .address-postal {
    grid-column: span 1;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 20px, 1320px);
    padding-top: 14px;
  }

  .form-index {
    grid-template-columns: 1fr 1fr;
  }

  .chapter-card,
  .form-card-header {
    gap: 10px;
  }

  .chapter-marker {
    min-width: 46px;
  }

  .address-grid,
  .surface-grid {
    grid-template-columns: 1fr;
  }

  .minimal-requirement-card ul {
    columns: 1;
  }

  .address-county,
  .address-locality,
  .address-street,
  .address-number,
  .address-small,
  .address-postal {
    grid-column: 1 / -1;
  }
}