:root {
  --landing-canvas: #061510;
  --landing-surface: #0d211a;
  --landing-panel: #103126;
  --landing-text: #f4f8f6;
  --landing-muted: #b6c7bf;
  --landing-border: #2a4539;
  --landing-accent: #62ebc1;
  --landing-hover: #8bf4d4;
  --landing-ink: #042017;
  --paper: #f4f7f4;
  --paper-ink: #172b22;
  --paper-muted: #64746d;
  --paper-line: #d5ddd7;
  --paper-success: #07885f;
  --paper-success-bg: #d9f3e9;
  --paper-error: #b7352e;
  --paper-error-bg: #f5dad5;

  color-scheme: light;
  --canvas: #f2f7f4;
  --surface: #ffffff;
  --text: #17201d;
  --text-muted: #5e6864;
  --border: #b9cdc2;
  --accent: #17654e;
  --accent-hover: #0f503d;
  --accent-text: #ffffff;
  --focus: #3b82f6;
  --selection: #e4f2ec;
  --annotation: #b76a00;
  --success: #17654e;
  --danger: #a52a2a;
  --danger-text: #ffffff;
  --backdrop: rgb(0 0 0 / 55%);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --canvas: var(--landing-canvas);
    --surface: var(--landing-surface);
    --text: var(--landing-text);
    --text-muted: var(--landing-muted);
    --border: var(--landing-border);
    --accent: var(--landing-accent);
    --accent-hover: var(--landing-hover);
    --accent-text: var(--landing-ink);
    --focus: #8ab4f8;
    --selection: var(--landing-panel);
    --annotation: #f0ad4e;
    --success: var(--landing-accent);
    --danger: #e17878;
    --danger-text: #180b0b;
  }
}

/* Native page transitions keep navigation working without JavaScript. */
@media (prefers-reduced-motion: no-preference) {
  @view-transition {
    navigation: auto;
  }

  site-header {
    view-transition-name: site-header;
  }

  main {
    view-transition-name: page-content;
  }

  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation-duration: 180ms;
  }

  ::view-transition-old(page-content) {
    animation: 120ms ease-in both page-leave;
  }

  ::view-transition-new(page-content) {
    animation: 260ms cubic-bezier(0.2, 0.7, 0.2, 1) both page-enter;
  }
}

@keyframes page-leave {
  to { opacity: 0; transform: translateY(-0.35rem); }
}

@keyframes page-enter {
  from { opacity: 0; transform: translateY(0.55rem); }
}

* {
  box-sizing: border-box;
}

html {
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  min-height: 100svh;
  color: var(--text);
  background: radial-gradient(ellipse at 82% 12%, var(--selection), transparent 38%), var(--canvas);
  background-repeat: no-repeat;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

main:has(filter-grid) {
  width: min(1120px, calc(100% - 2rem));
}

main:has(pulse-chart) {
  width: min(980px, calc(100% - 2rem));
}

main:has(people-directory) {
  width: min(980px, calc(100% - 2rem));
}

pulse-chart,
pulse-day,
pulse-bar,
pulse-segment,
pulse-legend {
  display: block;
}

people-directory {
  display: block;
}

people-directory > form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: end;
  gap: 0.75rem;
  padding: 0.75rem;
}

people-directory > form button {
  margin: 0;
}

pulse-chart {
  margin-block: 1rem 2rem;
}

pulse-day {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr) 2rem 9rem;
  align-items: center;
  gap: 0.6rem;
  padding-block: 0.28rem;
  border-bottom: 1px solid var(--border);
}

pulse-day small {
  color: var(--text-muted);
}

pulse-bar {
  display: flex;
  min-height: 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
}

pulse-segment.accepted {
  background: var(--success);
}

pulse-segment.returned {
  background: var(--annotation);
}

pulse-segment.human-judgment {
  background: var(--danger);
}

pulse-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

pulse-legend span {
  padding-inline-start: 0.45rem;
  border-inline-start: 0.75rem solid var(--success);
}

pulse-legend span:nth-child(2) {
  border-inline-start-color: var(--annotation);
}

pulse-legend span:nth-child(3) {
  border-inline-start-color: var(--danger);
}

@media (max-width: 36rem) {
  pulse-day { grid-template-columns: 3.5rem minmax(0, 1fr) 2rem; }
  pulse-day small { grid-column: 2 / -1; }
}

filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.75rem;
}

pre.event-payload {
  max-height: 65vh;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

a {
  color: var(--accent);
}

site-header,
main {
  display: block;
  width: min(720px, calc(100% - 2rem));
  margin-inline: auto;
}

site-header {
  padding-block: 1rem;
  border-bottom: 1px solid var(--border);
}

site-header a {
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
}

site-header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

site-header ul {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

site-header li a {
  color: var(--text-muted);
  font-weight: 500;
}

site-header a[aria-current="page"] {
  color: var(--text);
}

account-control {
  display: block;
}

account-control a {
  display: block;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border);
}

main {
  padding-block: 2.5rem 5rem;
}

main:has(document-workspace) {
  width: min(1200px, calc(100% - 2rem));
}

page-intro,
form-field,
gate-list,
gate-results,
gate-toolbar,
gate-item,
gate-nav,
check-view,
check-content,
check-nav,
check-fields,
organisation-list,
organisation-item,
management-grid,
team-list,
team-item,
user-list,
user-item,
document-list,
document-item,
document-workspace,
document-page,
annotation-sidebar,
annotation-list,
annotation-item,
guidance-control,
guidance-menu,
guidance-targets,
metadata-list,
metadata-item,
field-review-list,
field-review,
selection-summary,
feedback-list,
feedback-item,
stat-grid,
stat-item,
choice-grid,
impact-form,
setup-list,
setup-item,
table-scroll,
empty-state {
  display: block;
}

table-scroll {
  overflow-x: auto;
}

gate-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

gate-nav a {
  color: var(--text-muted);
}

gate-nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

check-nav {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

check-nav a {
  padding: 0.5rem 0;
}

check-nav a[aria-current="page"],
check-fields nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

check-fields {
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) minmax(0, 3fr);
  gap: 1.5rem;
}

check-fields nav {
  display: grid;
  align-content: start;
  gap: 0.4rem;
}

check-fields nav h2 {
  margin: 0.75rem 0 0;
  font-size: 1rem;
}

check-fields > section {
  min-width: 0;
}

@media (max-width: 700px) {
  check-fields { grid-template-columns: 1fr; }
}

setup-list ol {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--border);
}

setup-list li {
  padding: 0.875rem;
  border-bottom: 1px solid var(--border);
  border-inline-start: 0.25rem solid var(--border);
  background: var(--surface);
}

setup-list li.success {
  border-inline-start-color: var(--success);
}

setup-list li.warning {
  border-inline-start-color: var(--annotation);
}

setup-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
}

setup-item strong,
setup-item span {
  display: block;
}

setup-item span {
  color: var(--text-muted);
}

@media (max-width: 36rem) {
  setup-item {
    grid-template-columns: 1fr;
    gap: 0.375rem;
  }
}

choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 0.75rem;
}

choice-grid > label {
  padding: 0.75rem;
  border: 1px solid var(--border);
  cursor: pointer;
}

choice-grid span {
  display: block;
  margin-top: 0.25rem;
  color: var(--text-muted);
  font-weight: 400;
}

choice-grid > label:has(input:checked) {
  border-color: var(--accent);
  background: var(--selection);
}

impact-form > form {
  padding: 0;
  border: 0;
  background: transparent;
}

impact-form fieldset > p {
  color: var(--text-muted);
}

stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1rem;
}

stat-item {
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

stat-item strong,
stat-item span {
  display: block;
}

stat-item strong {
  font-size: 2rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
}

th,
td {
  padding: 0.625rem;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

table-scroll td form {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

table-scroll td form + form {
  margin-top: 0.35rem;
}

table-scroll td form label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

table-scroll td form select {
  width: auto;
  min-width: 7rem;
  padding: 0.35rem;
}

table-scroll td form button {
  margin: 0;
  padding: 0.35rem 0.5rem;
  white-space: nowrap;
}

feedback-item {
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

feedback-item + feedback-item {
  margin-top: 0.75rem;
}

feedback-item.important {
  border-inline-start: 0.25rem solid var(--danger);
}

feedback-item.warning {
  border-inline-start: 0.25rem solid var(--annotation);
}

feedback-item.success {
  border-inline-start: 0.25rem solid var(--success);
}

form-field > feedback-item {
  margin-top: 0.625rem;
  padding: 0.625rem 0.75rem;
}

page-intro {
  margin-bottom: 1.75rem;
}

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

h1 {
  margin-bottom: 0.5rem;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

h2 {
  margin: 2.5rem 0 0.75rem;
  font-size: 1.25rem;
}

h3 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
}

form,
gate-item > article,
organisation-item > article,
team-item > article,
user-item > article,
empty-state {
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

form-field + form-field {
  margin-top: 0.875rem;
}

label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 650;
}

input,
textarea,
select,
button {

  font: inherit;
}

input,
textarea,
select {
  display: block;
  width: 100%;
  padding: 0.625rem 0.75rem;
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--canvas);
}

input[type="checkbox"] {
  display: inline-block;
  width: auto;
}

fieldset {
  margin: 0 0 1.5rem;
  padding: 1rem;
  border: 1px solid var(--border);
}

legend {
  padding-inline: 0.25rem;
  font-weight: 700;
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

textarea {
  min-height: 5rem;
  resize: vertical;
}

button {
  margin-top: 1rem;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border);
  cursor: pointer;
}

button.primary {
  color: var(--accent-text);
  border-color: var(--accent);
  background: var(--accent);
}

a.primary {
  display: inline-block;
  padding: 0.625rem 0.875rem;
  color: var(--accent-text);
  border: 1px solid var(--accent);
  background: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

a.primary:hover {
  border-color: var(--accent-hover);
  background: var(--accent-hover);
}

button.primary:hover {
  border-color: var(--accent-hover);
  background: var(--accent-hover);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

button.secondary {
  color: var(--text);
  border-color: var(--border);
  background: var(--surface);
}

form + form.compact {
  margin-top: 0.625rem;
}

section > form + form {
  margin-top: 1rem;
}

gate-list {
  display: grid;
  gap: 0.625rem;
}

gate-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

gate-toolbar form.compact {
  padding: 0;
  border: 0;
  background: transparent;
}

gate-toolbar label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

gate-toolbar input {
  margin: 0;
}

gate-results > nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
}

organisation-list,
team-list,
user-list {
  display: grid;
  gap: 0.625rem;
  margin-top: 0.625rem;
}

document-list,
annotation-list,
metadata-list {
  display: grid;
  gap: 0.625rem;
}

field-review-list {
  display: grid;
  gap: 1rem;
}

field-review {
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

field-review > button {
  display: block;
  margin: 0 0 0.5rem;
  padding: 0;
  color: var(--accent);
  border: 0;
  background: transparent;
  font-weight: 700;
  text-align: left;
  text-decoration: underline;
}

field-review > label {
  font-weight: 400;
}

field-review > form {
  padding: 0;
  border: 0;
}

field-review + field-review {
  margin-top: 0.625rem;
}

gate-list:has(gate-item) > empty-state,
organisation-list:has(organisation-item) > empty-state,
team-list:has(team-item) > empty-state,
user-list:has(user-item) > empty-state {
  display: none;
}

document-list:has(document-item) > empty-state,
annotation-list:has(annotation-item) > empty-state {
  display: none;
}

document-item > article,
annotation-item,
metadata-item > article {
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

metadata-item h2 {
  margin-top: 0;
}

metadata-item.no-fields > article,
document-page .annotatable.no-fields {
  color: var(--text-muted);
  background: var(--canvas);
}

document-item h3,
annotation-item p {
  margin-bottom: 0.25rem;
}

annotation-item h3 {
  margin-bottom: 0.5rem;
}

annotation-item ul {
  margin: 0;
  padding-left: 1.25rem;
}

annotation-item li {
  margin-top: 0.25rem;
  color: var(--text-muted);
}

guidance-menu {
  display: grid;
  gap: 0.375rem;
}

guidance-targets {
  display: grid;
  gap: 0.5rem;
}

guidance-targets > button {
  margin: 0;
  text-align: left;
}

button.compact {
  margin: 0;
  padding: 0.25rem 0.5rem;
}

guidance-control {
  display: flex;
  align-items: start;
  gap: 0.25rem;
}

guidance-control > button {
  flex: 1;
  margin: 0;
  padding: 0.25rem 0;
  color: var(--accent);
  border: 0;
  background: transparent;
  text-align: left;
  text-decoration: underline;
}

guidance-control > form {
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

guidance-control > button.guidance-delete {
  flex: 0 0 1.25rem;
  width: 1.25rem;
  margin: 0;
  padding: 0.125rem;
  color: var(--text-muted);
  border: 0;
  background: transparent;
  text-align: center;
  text-decoration: none;
}

button.danger {
  color: var(--danger-text);
  border-color: var(--danger);
  background: var(--danger);
}

dialog {
  width: min(32rem, calc(100% - 2rem));
  padding: 1rem;
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--surface);
}

dialog::backdrop {
  background: var(--backdrop);
}

dialog h2 {
  margin-top: 0;
}

dialog form {
  padding: 0;
  border: 0;
}

document-item small,
annotation-item small {
  color: var(--text-muted);
}

document-workspace {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(16rem, 1fr);
  align-items: start;
  gap: 1.5rem;
}

document-page {
  min-height: 40rem;
  padding: clamp(1rem, 4vw, 3rem);
  overflow-wrap: anywhere;
  border: 1px solid var(--border);
  background: var(--surface);
  font-family: Georgia, serif;
}

document-page table {
  width: 100%;
  border-collapse: collapse;
}

document-page td,
document-page th {
  padding: 0.4rem;
  border: 1px solid var(--border);
  text-align: left;
}

document-page .annotatable {
  scroll-margin-top: 1rem;
  cursor: pointer;
  outline: 1px solid transparent;
  outline-offset: 2px;
}

document-page .annotatable:hover {
  background: var(--selection);
  outline-color: var(--accent);
}

document-page .annotated {
  border-inline-start: 3px solid var(--annotation);
}

document-page .suggested {
  border-inline-start: 3px dashed var(--text-muted);
}

annotation-item li.suggested,
guidance-control:has(> p) {
  color: var(--text-muted);
}

guidance-control > p {
  flex: 1;
  margin: 0;
}

document-page .annotatable:target {
  background: var(--selection);
  outline-color: var(--annotation);
}

annotation-sidebar {
  position: sticky;
  top: 1rem;
}

annotation-sidebar > section,
annotation-sidebar > details {
  margin-bottom: 1rem;
}

annotation-sidebar h2 {
  margin-top: 0;
}

selection-summary {
  color: var(--text-muted);
}

selection-summary p {
  margin-bottom: 0.5rem;
}

annotation-sidebar form {
  padding: 0;
  border: 0;
  background: transparent;
}

@media (max-width: 48rem) {
  document-workspace {
    grid-template-columns: 1fr;
  }

  annotation-sidebar {
    position: static;
  }
}

management-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
  gap: 1.5rem;
  margin-block-start: 2.5rem;
}

management-grid h2 {
  margin-top: 0;
}

management-grid > article {
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

management-grid > article > form {
  padding: 0;
  border: 0;
  background: transparent;
}

form.compact {
  padding: 0.75rem;
}

gate-item p {
  margin-bottom: 0.5rem;
}

organisation-item h3,
team-item h3,
user-item h3,
user-item p {
  margin-bottom: 0.25rem;
}

gate-item small,
organisation-item small,
user-item small,
empty-state {
  color: var(--text-muted);
}

.hidden {
  display: none;
}

/* Public information pages share the application palette and native controls. */
public-page,
public-grid,
site-footer {
  display: block;
}

public-page section {
  margin-block: 2rem;
}

public-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  gap: 1.5rem;
}

public-grid section {
  margin: 0;
  padding-block: 1rem;
  border-block-start: 1px solid var(--border);
}

site-footer {
  width: min(720px, calc(100% - 2rem));
  margin-inline: auto;
  padding-block: 1.5rem 2rem;
  border-block-start: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding: 0;
  list-style: none;
}

site-header nav,
site-header ul {
  flex-wrap: wrap;
}

public-page details {
  margin-block: 1rem;
  padding-block: 0.75rem;
  border-block-end: 1px solid var(--border);
}

public-page summary {
  cursor: pointer;
  font-weight: 650;
}

.skip {
  position: absolute;
  inset-inline-start: 1rem;
  inset-block-start: -10rem;
  padding: 0.75rem;
  background: var(--surface);
  color: var(--text);
  z-index: 10;
}

.skip:focus {
  inset-block-start: 0.5rem;
}

@media print {
  body {
    background: var(--surface);
  }
  site-header,
  site-footer,
  .skip {
    display: none;
  }
  main {
    width: 100%;
    padding: 0;
  }
  public-page a {
    color: var(--text);
  }
}

public-page th,
public-page td {
  overflow-wrap: anywhere;
}

pricing-calculator {
  display: block;
  margin-block: 1.5rem;
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

pricing-calculator > label {
  display: block;
  margin-block-start: 1rem;
}

pricing-calculator input[type="range"] {
  display: block;
  width: 100%;
  accent-color: var(--accent);
}

pricing-calculator output {
  font-weight: 650;
}


/* Shared brand treatment; page content never determines the colour scheme. */
:is(site-header, site-footer), body:has(public-page) main {
  width: min(1200px, calc(100% - 4rem));
}

site-header nav {
  gap: 1.5rem;
}

site-header nav > a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  letter-spacing: -0.04em;
  max-width: 100%;
}

site-header nav > a svg {
  flex-shrink: 0;
  color: var(--accent);
}

site-header ul {
  gap: 0.75rem 1.25rem;
}

:is(a, button).primary {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
}

public-page > h1 {
  max-width: 22ch;
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  text-wrap: balance;
  margin-block-end: 1.25rem;
}

public-page > p, public-page > section > p,
public-page > :is(ol, ul), public-page > details {
  max-width: 75ch;
}

public-page > p:first-of-type {
  color: var(--text-muted);
  font-size: 1.15rem;
}

public-grid > section {
  padding: clamp(1rem, 2vw, 1.75rem);
  border: 1px solid var(--border);
  background: linear-gradient(125deg, var(--surface), var(--canvas));
}

public-grid > section > h2:first-child {
  margin-block-start: 0;
}

/* Public calls to action size to their labels; app toolbars retain their grid. */
public-page gate-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  margin-block: 1.25rem 0;
}

public-page :is(h2, h3) {
  letter-spacing: -0.025em;
}

pricing-calculator {
  max-width: 48rem;
  padding: clamp(1rem, 3vw, 2rem);
  background: linear-gradient(140deg, var(--selection), var(--surface));
}

landing-intro {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  align-items: center;
  column-gap: 2rem;
  padding-block: 4rem 2.5rem;
}

hero-copy, document-preview, submission-preview, review-preview, document-lines,
preview-outcome, savings-calculator, calculator-controls, savings-results, impact-metrics {
  display: block;
}

hero-copy h1 {
  font-size: clamp(2.7rem, 5.2vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  margin-block: 0 1.5rem;
  text-wrap: balance;
}

hero-copy > p {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  line-height: 1.55;
  color: var(--text-muted);
  max-width: 36rem;
  margin-block-end: 1.5rem;
}

hero-copy gate-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin-block: 0;
  gap: 1rem;
}

hero-copy gate-toolbar > a {
  white-space: nowrap;
  padding: 1rem 1.4rem;
  border: 1px solid var(--border);

  background: var(--surface);
  text-decoration: none;
  font-weight: 650;
  color: var(--text);
}

hero-copy gate-toolbar > a.primary {
  color: var(--accent-text);
  background: var(--accent);
}

hero-copy gate-toolbar > a:hover {
  border-color: var(--accent);
}

hero-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  grid-column: 1 / -1;
  margin-block-start: 2rem;
}

hero-benefits span::before {
  content: '✓';
  display: inline-grid;
  place-items: center;
  width: 1.4rem;
  height: 1.4rem;
  margin-inline-end: 0.7rem;
  color: var(--accent-text);
  background: var(--accent);

  font-size: 0.9rem;
  font-weight: 800;
}

document-preview {
  position: relative;
  height: 27rem;
  margin: 1rem 0 0 1rem;
  font-size: 0.95rem;
}

submission-preview, review-preview {
  position: absolute;
  width: 72%;

  padding: 1.5rem;
  background: var(--paper);
  color: var(--paper-ink);

}

submission-preview {
  inset: 0 auto auto 0;
  min-height: 22rem;
  transform: rotate(-7deg);
}

review-preview {
  inset: 5.5rem 0 auto auto;
  width: 78%;
  transform: rotate(3deg);
  border: 1px solid var(--accent);
}

submission-preview > strong, review-preview > strong {
  font-size: 1.1rem;
}

review-preview > strong > span {
  color: var(--paper-success);
  font-size: 1.8rem;
  vertical-align: middle;
  margin-inline-end: 0.3rem;
}

document-lines {
  margin-block: 1.2rem;
}

document-lines i {
  display: block;
  height: 0.55rem;
  background: var(--paper-line);
  margin-block: 0.65rem;
  width: 100%;

}

document-lines i:nth-child(2n) {
  width: 80%;
}

preview-error {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--paper-error-bg);
  color: var(--paper-error);
  padding: 0.55rem;
  font-weight: 700;
}

preview-error span {
  font-size: 0.8rem;
}

review-preview ul {
  list-style: none;
  padding: 0;
  margin-block: 1rem 1.5rem;
  font-size: 0.85rem;
}

review-preview li {
  margin-block: 0.8rem;
}

review-preview li::before {
  content: '✓';
  display: inline-grid;
  place-items: center;
  width: 1.25rem;
  height: 1.25rem;
  background: var(--paper-success);
  color: var(--paper);

  margin-inline-end: 0.5rem;
}

preview-outcome {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  background: var(--paper-success-bg);

  padding: 1rem;
}

preview-outcome > span {
  font-size: 1.5rem;
  color: var(--paper-success);
}

preview-outcome small {
  display: block;
  color: var(--paper-muted);
  margin-block-start: 0.4rem;
  font-size: 0.75rem;
}

savings-calculator {
  padding: clamp(1.25rem, 3vw, 2.5rem);
  border: 1px solid var(--border);

  background: linear-gradient(115deg, var(--surface), var(--canvas));
}

calculator-workspace {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 1.75rem;
  align-items: stretch;
}

calculator-controls h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  letter-spacing: -0.035em;
  line-height: 1.2;
  margin-block: 0 0.75rem;
}

calculator-controls > p {
  color: var(--text-muted);
}

scenario-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 1.25rem 2rem;
}

scenario-picker button {
  margin: 0;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--canvas);
  font-size: 0.8rem;
}

scenario-picker [aria-pressed="true"] {
  background: var(--selection);
  color: var(--accent);
  border-color: var(--accent);
}

calculator-inputs, salary-picker {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

calculator-inputs label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
}

calculator-inputs input {
  width: 100%;
  min-width: 0;
  background: var(--canvas);

  margin-block: 0.65rem 0.4rem;
  padding: 0.85rem;
  font-size: 1.1rem;
  font-weight: 550;
}

calculator-inputs small {
  display: block;
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.8rem;
  line-height: 1.5;
}

calculator-controls fieldset {
  border: 0;
  padding: 0;
  margin-block: 2rem 0;
  min-width: 0;
}

calculator-controls legend {
  margin-block-end: 0.75rem;
  font-weight: 650;
}

salary-picker label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 1rem 0.75rem;
  border: 1px solid var(--border);

  cursor: pointer;
  margin: 0;
  font-size: 0.85rem;
}

salary-picker input[type="radio"] {
  appearance: auto;
  flex: 0 0 auto;
  width: 1.1rem;
  height: 1.1rem;
  padding: 0;
  margin: 0.15rem 0 0;
  accent-color: var(--accent);
}

salary-picker label:has(:checked) {
  background: var(--selection);
  border-color: var(--accent);
}

salary-picker :is(strong, b, small) {
  display: block;
}

salary-picker b {
  margin-block: 0.4rem;
  font-weight: 550;
}

salary-picker small {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.7rem;
}

calculator-controls > p:last-child {
  font-size: 0.8rem;
  margin-block: 1rem 0;
}

savings-results {
  padding: 1.5rem;
  border: 1px solid var(--border);

  background: linear-gradient(140deg, var(--selection), var(--surface));
}

savings-results h3 {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-block: 0 1.5rem;
}

impact-metrics > div + div {
  border-block-start: 1px solid var(--border);
  padding-block-start: 1.5rem;
  margin-block-start: 1.5rem;
}

impact-metrics strong {
  display: block;
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  letter-spacing: -0.045em;
  line-height: 1.1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
  margin-block-end: 0.65rem;
}

impact-metrics > div + div strong {
  color: var(--accent);
}

impact-metrics span {
  display: block;
  font-size: 0.95rem;
  color: var(--text-muted);
}

annual-impact {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.85rem;
  background: var(--selection);
  border: 1px solid var(--border);

  margin-block-start: 1.5rem;
}

annual-impact > span {
  color: var(--accent);
  font-size: 1.7rem;
  line-height: 1;
}

annual-impact p {
  margin: 0;
  font-size: 0.8rem;
}

annual-impact strong {
  font-size: inherit;
}

savings-results > p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-block: 1rem 0;
}

savings-results a.primary {
  width: 100%;
  padding: 0.85rem;
  font-size: 0.85rem;
}

savings-results[hidden] {
  display: none;
}

savings-calculator > :is(p, details) {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-block: 1.25rem 0;
}

savings-calculator details {
  padding-block-end: 0;
  border: 0;
}

feature-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
  padding-block: 3rem;
}

feature-strip > section {
  display: flex;
  gap: 1.15rem;
  margin: 0;
}

feature-strip > section > span {
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  flex: 0 0 auto;
  background: var(--selection);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 2rem;
}

feature-strip h2 {
  font-size: 1.05rem;
  margin-block: 0 0.65rem;
}

feature-strip p {
  font-size: 0.95rem;
  margin: 0;
  color: var(--text-muted);
}

@media (max-width: 64rem) {
  site-header nav {
    flex-wrap: wrap;
    gap: 1rem;
  }

  calculator-workspace {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  }

  salary-picker {
    grid-template-columns: 1fr;
  }

  salary-picker label {
    padding: 0.75rem;
  }

  salary-picker label > span {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem 1rem;
    flex: 1;
  }

  salary-picker b {
    margin: 0;
  }

  salary-picker small {
    grid-column: 1 / -1;
  }

  feature-strip {
    gap: 1rem;
  }
}

@media (max-width: 48rem) {
  :is(main, site-header, site-footer) {
    width: calc(100% - 2rem);
  }

  landing-intro {
    grid-template-columns: 1fr;
    padding-block-start: 2rem;
  }

  hero-copy h1 {
    font-size: clamp(2.5rem, 8vw, 3.6rem);
  }

  document-preview {
    width: min(calc(100% - 1.5rem), 26rem);
    height: 26rem;
    justify-self: center;
    margin-block-start: 2rem;
    margin-inline: 0;
  }

  calculator-workspace {
    grid-template-columns: 1fr;
  }

  calculator-inputs {
    grid-template-columns: 1fr;
  }

  calculator-inputs input {
    margin-block-start: 0.35rem;
  }

  impact-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

  impact-metrics > div + div {
    margin: 0;
    padding: 0;
    border: 0;
  }

  impact-metrics strong {
    font-size: clamp(1.75rem, 6vw, 2.75rem);
  }

  feature-strip {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

data-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding-block: 2rem;
}

data-hero h2 {
  font-size: clamp(2rem, 3.5vw, 3.3rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
  margin-block: 0 1.5rem;
  text-wrap: balance;
}

data-hero h2 em {
  color: var(--accent);
  font-style: normal;
}

data-hero hero-copy > p + p {
  font-size: 1rem;
  margin-block-end: 2rem;
}

extraction-preview, invoice-preview, spreadsheet-preview {
  display: block;
  min-width: 0;
}

invoice-preview {
  width: 85%;
  margin-inline: auto;
  background: var(--paper);
  color: var(--paper-ink);
  border: 1px solid var(--paper-line);

  padding: 1.4rem;
  transform: rotate(-2deg);
}

extraction-preview header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

extraction-preview header > span {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.8rem;
  border: 1px solid currentColor;

  font-weight: 750;
  font-size: 1.2rem;
}

extraction-preview header strong, extraction-preview header small {
  display: block;
}

invoice-preview header small {
  color: var(--paper-muted);
  margin-block-start: 0.2rem;
}

invoice-preview dl {
  margin-block: 1.3rem 0;
  font-size: 0.9rem;
}

invoice-preview dl > div {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 1rem;
  padding-block: 0.65rem;
  border-block-start: 1px solid var(--paper-line);
}

invoice-preview dt {
  color: var(--paper-muted);
}

invoice-preview dd {
  margin: 0;
  font-weight: 650;
  text-align: end;
}

extraction-step {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  margin-block: 1rem;
  font-size: 0.9rem;
  color: var(--accent);
}

extraction-step span {
  font-size: 1.8rem;
}

spreadsheet-preview {
  background: var(--surface);
  border: 1px solid var(--accent);

  overflow: hidden;
}

spreadsheet-preview header {
  padding: 1.2rem;
  background: var(--selection);
}

spreadsheet-preview header > span {
  color: var(--accent);
}

spreadsheet-preview header small {
  color: var(--text-muted);
  margin-block-start: 0.2rem;
  font-size: 0.8rem;
}

spreadsheet-preview table {
  font-size: 0.85rem;
  table-layout: fixed;
}

spreadsheet-preview caption {
  text-align: start;
  padding: 0.75rem 1.2rem;
  color: var(--text-muted);
  font-size: 0.75rem;
}

spreadsheet-preview th {
  background: var(--selection);
  font-weight: 650;
}

spreadsheet-preview :is(th, td) {
  padding: 0.75rem;
  border-inline-start: 0;
  border-inline-end: 1px solid var(--border);
}

spreadsheet-preview th:first-child, spreadsheet-preview td:first-child {
  width: 44%;
}

spreadsheet-preview footer {
  padding: 0.9rem 1.2rem;
  font-size: 0.8rem;
  color: var(--accent);
}

spreadsheet-preview footer span {
  margin-inline-end: 0.4rem;
}

extraction-preview > p {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-align: center;
  margin-block: 0.8rem 0;
}

data-benefits {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
  border-block-end: 1px solid var(--border);
  padding-block: 1.5rem 2.5rem;
  margin-block-end: 3rem;
}

data-benefits h3 {
  font-size: 1rem;
  margin-block: 0 0.6rem;
}

data-benefits p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}

@media (max-width: 48rem) {
  data-hero, data-benefits {
    grid-template-columns: 1fr;
  }

  data-hero {
    gap: 2rem;
    padding-block: 1rem;
  }

  data-benefits {
    gap: 1.5rem;
  }

  invoice-preview {
    width: 92%;
    padding: 1rem;
  }

  spreadsheet-preview :is(th, td) {
    padding: 0.55rem;
    font-size: 0.75rem;
  }
}

worked-example {
  display: block;
}

worked-example landing-intro {
  padding-block-end: 3rem;
}

worked-example hero-copy > p:last-child {
  font-size: 0.85rem;
  margin-block: 1.25rem 0;
}

worked-example section {
  margin-block: 1.5rem;
  scroll-margin-block-start: 1.5rem;
}

worked-example h2 {
  font-size: clamp(1.4rem, 2.7vw, 1.9rem);
  letter-spacing: -0.035em;
  margin-block: 0 0.65rem;
}

worked-example h3 {
  font-size: 1.05rem;
  margin-block: 0 0.5rem;
}

worked-example p {
  color: var(--text-muted);
}

worked-example :is(request-comparison, review-result) {
  border: 1px solid var(--border);

  background: linear-gradient(125deg, var(--surface), var(--canvas));
  padding: clamp(1.25rem, 3vw, 2rem);
}

request-comparison {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2.5rem minmax(0, 1fr);
  gap: 1.5rem;
  align-items: center;
}

request-comparison > div > p {
  margin-block: 0 1.5rem;
}

comparison-arrow {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--accent);
  color: var(--accent-text);

  font-size: 1.5rem;
}

request-document {
  display: block;
  background: var(--paper);
  color: var(--paper-ink);

  padding: 1.5rem;
  border: 1px solid var(--paper-line);
}

request-document header {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding-block-end: 1rem;
  border-block-end: 1px solid var(--paper-line);
}

request-document header > span {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.7rem;
  border: 1px solid currentColor;

  flex-shrink: 0;
  font-weight: 750;
}

request-document header strong, request-document header small {
  display: block;
}

request-document header strong {
  font-size: 1.2rem;
  line-height: 1.25;
}

request-document header small {
  font-size: 0.75rem;
  color: var(--paper-muted);
  margin-block-start: 0.3rem;
}

request-document dl {
  margin-block: 1rem 0;
}

request-document dl > div + div {
  margin-block-start: 1rem;
}

request-document dt {
  font-size: 0.8rem;
  font-weight: 650;
  margin-block-end: 0.3rem;
}

request-document dd {
  background: var(--paper-line);

  padding: 0.65rem;
  margin: 0;
}

request-document dd.warning {
  color: var(--paper-error);
  background: var(--paper-error-bg);
  font-style: italic;
}

requirement-list, finding-list, review-result, next-steps {
  display: block;
}

requirement-list article {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem;
  border: 1px solid var(--border);

  margin-block-start: 0.75rem;
}

requirement-list article > span {
  color: var(--accent);
  background: var(--selection);

  padding: 0.6rem;
  font-size: 0.8rem;
  font-weight: 650;
}

requirement-list h3 {
  font-size: 0.95rem;
}

requirement-list p, finding-list p {
  font-size: 0.9rem;
  margin: 0;
}

worked-example review-result.warning {
  border-inline-start: 5px solid var(--paper-error);
}

review-result > header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
  margin-block-end: 1.5rem;
}

review-result > header p {
  margin: 0;
}

result-status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  white-space: nowrap;
  border: 1px solid currentColor;

  padding: 0.65rem 0.85rem;
  font-size: 0.85rem;
}

worked-example result-status.warning {
  color: var(--danger);
  background: var(--surface);
}

worked-example result-status.success {
  color: var(--accent);
  background: var(--selection);
}

correction-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

finding-list article {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding-block: 1rem;
}

finding-list article:first-child {
  padding-block-start: 0;
}

finding-list article + article {
  border-block-start: 1px solid var(--border);
}

finding-list article > span {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 1.8rem;
  height: 1.8rem;

  font-weight: 800;
}

finding-list .warning > span {
  color: var(--paper-error);
  background: var(--paper-error-bg);
}

finding-list .success > span {
  color: var(--accent-text);
  background: var(--accent);
}

next-steps {
  background: var(--selection);
  border: 1px solid var(--border);

  padding: 1.25rem;
}

next-steps ol {
  padding-inline-start: 1.25rem;
  margin-block: 1rem 0;
}

next-steps li {
  padding-inline-start: 0.4rem;
  margin-block: 0.75rem;
  font-size: 0.9rem;
}

next-steps li::marker {
  color: var(--accent);
  font-weight: 700;
}

correction-summary {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
  margin-block: 1.5rem;
}

correction-summary > div {
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);

}

correction-summary span, correction-summary strong {
  display: block;
}

correction-summary span {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-block-end: 0.4rem;
}

accepted-result {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

accepted-result > span {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  flex: 0 0 auto;

  background: var(--accent);
  color: var(--accent-text);
  font-size: 1.8rem;
  font-weight: 700;
}

accepted-result p {
  margin: 0;
  font-size: 0.9rem;
}

accepted-result result-status {
  margin-inline-start: auto;
}

judgment-note {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding-block: 1.5rem;
  margin-block-start: 2rem;
  border-block-start: 1px solid var(--border);
}

judgment-note > span {
  color: var(--accent);
  font-size: 2rem;
}

judgment-note h2 {
  font-size: 1.1rem;
}

judgment-note p {
  margin: 0;
}

demo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: center;
  margin-block: 1.5rem 3rem;
}

worked-example review-preview li.warning::before {
  content: '!';
  background: var(--paper-error);
}

@media (max-width: 48rem) {
  request-comparison, correction-workspace, correction-summary {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  comparison-arrow {
    justify-self: center;
    transform: rotate(90deg);
  }

  review-result > header {
    flex-direction: column;
  }

  accepted-result {
    flex-wrap: wrap;
  }

  accepted-result > div {
    flex: 1 1 12rem;
  }

  accepted-result result-status {
    margin-inline-start: 0;
  }
}

/* Keep document illustrations readable when text is enlarged. */
@media (max-width: 36rem) {
  document-preview {
    display: grid;
    gap: 1rem;
    height: auto;
    width: 100%;
  }

  submission-preview, review-preview {
    position: static;
    width: 100%;
    transform: none;
  }
}

@media print {
  :root {
    color-scheme: light;
    --canvas: var(--paper);
    --surface: var(--paper);
    --text: var(--paper-ink);
    --text-muted: var(--paper-muted);
    --border: var(--paper-line);
    --accent: var(--paper-success);
    --accent-text: var(--paper);
    --selection: var(--paper-success-bg);
  }

  body { background: var(--canvas); }
}