/* ==========================================================================
   Headland Safety — site styles
   Built on tokens.css. Follows the brand system's written rules: flat fields
   only, square geometry, no shadows, left-aligned and asymmetric, hover and
   press go darker, motion is functional only.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Base
   -------------------------------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-m));
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--surface-page);
  color: var(--text-body);
  font-family: var(--font-core);
  font-size: var(--size-body);
  line-height: var(--leading-body);
  font-weight: var(--weight-regular);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  color: var(--text-heading);
  font-family: var(--font-core);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  font-weight: var(--weight-bold);
  text-wrap: balance;
}

p {
  margin: 0;
  max-width: var(--measure-body);
  text-wrap: pretty;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

img,
svg,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

strong {
  font-weight: var(--weight-semibold);
}

hr {
  border: 0;
  border-top: var(--border-hairline) solid var(--line-hairline);
  margin: var(--space-l) 0;
}

::selection {
  background: var(--hs-coastal);
  color: var(--hs-white);
}

:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}

/* Coastal Blue measures 2.74:1 on navy, below the 3:1 minimum for a
   non-text indicator. Navy surfaces get a white ring instead. */
.section--navy :focus-visible,
.site-footer :focus-visible,
.edge__pane :focus-visible,
.cta-band :focus-visible {
  outline-color: var(--focus-ring-inverse);
}

.skip-link {
  position: absolute;
  left: var(--space-m);
  top: -100%;
  z-index: 100;
  background: var(--hs-navy);
  color: var(--hs-white);
  padding: 12px 20px;
  font-size: var(--size-body-sm);
  font-weight: var(--weight-semibold);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-m);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   2. Layout
   -------------------------------------------------------------------------- */

.wrap {
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.wrap--narrow {
  max-width: 940px;
}

.section {
  padding-block: var(--section-pad);
  background: var(--surface-page);
}

.section--tight {
  padding-block: var(--section-pad-tight);
}

.section--fog {
  background: var(--surface-panel);
}

.section--navy {
  background: var(--surface-inverse);
  color: var(--text-on-navy);
}

.section--navy h1,
.section--navy h2,
.section--navy h3 {
  color: var(--text-on-navy);
}

.section--navy p {
  color: var(--text-on-navy-secondary);
}

/* Whitespace is structural; a hairline only where two same-tone fields meet. */
.section--rule {
  border-top: var(--border-hairline) solid var(--line-soft);
}

/* --------------------------------------------------------------------------
   3. Typography helpers
   -------------------------------------------------------------------------- */

.eyebrow {
  display: block;
  margin: 0 0 var(--space-m);
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-accent);
}

.section--navy .eyebrow,
.edge__pane .eyebrow,
.site-footer .eyebrow {
  color: var(--text-accent-on-navy);
}

.caption {
  font-size: var(--size-caption);
  color: var(--text-meta);
}

.label {
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-meta);
}

.section--navy .label,
.edge__pane .label {
  color: var(--text-accent-on-navy);
}

.lede {
  font-size: var(--size-body-lg);
  line-height: var(--leading-body);
  color: var(--text-secondary);
  max-width: var(--measure-body);
}

.section--navy .lede {
  color: var(--text-on-navy-secondary);
}

.h-hero {
  font-size: var(--size-hero);
  line-height: var(--leading-hero);
  letter-spacing: var(--tracking-hero);
}

.h-statement {
  font-size: var(--size-statement);
  line-height: var(--leading-display);
  letter-spacing: -0.025em;
}

.h-section {
  font-size: var(--size-section);
  line-height: var(--leading-heading);
}

.h-subhead {
  font-size: var(--size-subhead);
  line-height: var(--leading-subhead);
}

/* Panel and sidebar headings — the step below .h-subhead. */
.h-small {
  font-size: var(--size-h3);
  line-height: var(--leading-subhead);
}

.section-heading {
  max-width: 62ch;
  margin-bottom: var(--space-xl);
}

.section-heading .lede {
  margin-top: var(--space-m);
}

.section-heading--split {
  max-width: none;
  display: grid;
  gap: var(--space-m) var(--space-xl);
  align-items: baseline;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .section-heading--split {
    grid-template-columns: 1.1fr 1fr;
  }
}

.stack > * + * {
  margin-top: var(--space-m);
}

.stack-l > * + * {
  margin-top: var(--space-l);
}

/* --------------------------------------------------------------------------
   4. Links and buttons
   -------------------------------------------------------------------------- */

a {
  color: var(--text-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: var(--transition-control);
}

a:hover {
  color: var(--text-link-hover);
}

.section--navy a,
.site-footer a,
.edge__pane a {
  color: var(--hs-white);
}

.section--navy a:hover,
.site-footer a:hover,
.edge__pane a:hover {
  color: var(--hs-coastal-light);
}

.textlink {
  display: inline-flex;
  align-items: center;
  gap: var(--space-s);
  font-size: var(--size-body-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
  text-decoration: none;
  border-bottom: var(--border-emphasis) solid var(--hs-navy-24);
  padding-bottom: 2px;
}

.textlink:hover {
  border-bottom-color: var(--hs-coastal);
}

.textlink--inverse {
  border-bottom-color: var(--line-on-navy);
}

.textlink--inverse:hover {
  border-bottom-color: var(--hs-coastal-light);
}

.textlink__arrow {
  transition: transform var(--motion-fast) var(--ease-standard);
}

.textlink:hover .textlink__arrow {
  transform: translateX(3px);
}

@media (prefers-reduced-motion: reduce) {
  .textlink:hover .textlink__arrow {
    transform: none;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-s);
  font-family: var(--font-core);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.01em;
  line-height: 1.2;
  border: var(--border-hairline) solid transparent;
  border-radius: var(--radius-control);
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: var(--transition-control);
  font-size: 15px;
  padding: 12px 22px;
  min-height: 44px;
}

.btn--sm {
  font-size: 13px;
  padding: 10px 16px;
  min-height: 40px;
}

.btn--lg {
  font-size: 17px;
  padding: 15px 30px;
  min-height: 52px;
}

.btn--block {
  width: 100%;
}

.btn--primary {
  background: var(--action-primary-bg);
  color: var(--action-primary-fg);
}

.btn--primary:hover {
  background: var(--action-primary-bg-hover);
  color: var(--action-primary-fg);
}

.btn--primary:active {
  background: var(--action-primary-bg-press);
}

.btn--accent {
  background: var(--action-accent-bg);
  color: var(--hs-white);
}

.btn--accent:hover {
  background: var(--action-accent-bg-hover);
  color: var(--hs-white);
}

.btn--accent:active {
  background: var(--hs-coastal-press);
}

.btn--secondary {
  background: transparent;
  color: var(--action-secondary-fg);
  border-color: var(--action-secondary-line);
}

.btn--secondary:hover {
  background: var(--action-secondary-bg-hover);
  color: var(--action-secondary-fg);
}

.btn--inverse {
  background: var(--hs-white);
  color: var(--hs-navy);
}

.btn--inverse:hover {
  background: var(--hs-fog);
  color: var(--hs-navy);
}

.btn[disabled],
.btn[aria-disabled="true"] {
  background: var(--action-disabled-bg);
  color: var(--action-disabled-fg);
  border-color: transparent;
  cursor: not-allowed;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-m);
  margin-top: var(--space-xl);
}

/* --------------------------------------------------------------------------
   5. Site header — flat nav bar, one navy CTA pinned right (direction 2a)
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--hs-white);
  border-bottom: var(--border-hairline) solid var(--line-hairline);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-l);
  height: var(--header-height);
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.site-header__logo {
  display: flex;
  align-items: center;
  border: 0;
  text-decoration: none;
  flex: none;
}

.site-header__logo img {
  height: 42px;
  width: auto;
}

@media (max-width: 640px) {
  .site-header__logo img {
    height: 34px;
  }
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-l);
  margin-left: auto;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-l);
  list-style: none;
}

.site-nav__link {
  display: inline-block;
  font-size: 15px;
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  text-decoration: none;
  padding-block: 4px;
  border-bottom: var(--border-emphasis) solid transparent;
}

.site-nav__link:hover {
  color: var(--hs-navy);
}

.site-nav__link[aria-current="page"] {
  color: var(--hs-navy);
  border-bottom-color: var(--hs-navy);
}

.site-header__toggle {
  display: none;
  flex: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: var(--border-hairline) solid var(--line-hairline);
  border-radius: var(--radius-control);
  color: var(--hs-navy);
  cursor: pointer;
  transition: var(--transition-control);
}

.site-header__toggle:hover {
  background: var(--hs-fog);
}

.site-header__toggle-icon,
.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
}

.site-header__toggle-icon {
  position: relative;
}

.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.site-header__toggle-icon::before {
  top: -6px;
}

.site-header__toggle-icon::after {
  top: 6px;
}

/* Below the breakpoint the nav stacks. Without JavaScript it stays expanded in
   the flow, which is the only fallback that keeps every page reachable. The
   `js` class is set by an inline script in the head, before first paint, so
   the collapsed version never flashes open. */
@media (max-width: 900px) {
  .site-header {
    position: static;
  }

  .site-header__inner {
    flex-wrap: wrap;
    height: auto;
    padding-block: 12px;
    gap: var(--space-m);
  }

  .site-nav {
    display: block;
    width: 100%;
    margin-left: 0;
  }

  .site-nav__list {
    display: block;
  }

  .site-nav__link {
    display: block;
    padding-block: 14px;
    font-size: 17px;
    border-bottom: var(--border-hairline) solid var(--line-soft);
  }

  .site-nav__link[aria-current="page"] {
    border-bottom-color: var(--hs-navy);
  }

  .site-nav .btn {
    width: 100%;
    margin-top: var(--space-m);
  }

  .js .site-header {
    position: sticky;
  }

  .js .site-header__inner {
    flex-wrap: nowrap;
    height: var(--header-height);
    padding-block: 0;
  }

  .js .site-header__toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .js .site-nav {
    display: none;
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    width: auto;
    padding: var(--space-m) var(--page-gutter) var(--space-l);
    background: var(--hs-white);
    border-bottom: var(--border-hairline) solid var(--line-hairline);
    max-height: calc(100dvh - var(--header-height));
    overflow-y: auto;
  }

  .js .site-nav[data-open="true"] {
    display: block;
  }
}

/* --------------------------------------------------------------------------
   6. The Headland Edge — navy field on 30% of one edge, crossed once
   -------------------------------------------------------------------------- */

.edge {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  background: var(--surface-page);
  overflow: hidden;
}

.edge__pane {
  background: var(--surface-edge);
  color: var(--text-on-navy);
  padding: var(--space-l) var(--page-gutter);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-l);
}

.edge__pane p {
  color: var(--text-on-navy-secondary);
}

.edge__descriptor {
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-on-navy-secondary);
  line-height: 2;
  margin: 0;
}

.edge__pillars {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s) var(--space-m);
  font-size: var(--size-label);
  font-weight: var(--weight-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hs-white);
}

.edge__field {
  padding: var(--section-pad-tight) var(--page-gutter);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.edge__field-inner {
  max-width: 760px;
}

@media (min-width: 900px) {
  .edge {
    grid-template-columns: var(--edge-default) 1fr;
    min-height: 560px;
  }

  .edge__pane {
    padding: var(--space-xl) var(--space-xl) var(--space-xl) var(--page-gutter);
  }

  .edge__pillars {
    flex-direction: column;
    gap: var(--space-s);
  }

  .edge__field {
    padding: var(--space-xl) var(--page-gutter) var(--space-xl) 0;
    /* The one break: the field crosses the navy boundary once. */
    margin-left: calc(-1 * var(--space-xl));
    background: var(--surface-page);
    position: relative;
    z-index: 1;
  }

  .edge__field-inner {
    padding-left: var(--space-xl);
  }
}

.edge--compact {
  min-height: 0;
}

@media (min-width: 900px) {
  .edge--compact {
    min-height: 360px;
  }
}

/* --------------------------------------------------------------------------
   7. Panels, rules and the Three Bearings column set
   -------------------------------------------------------------------------- */

.panel {
  background: var(--surface-panel);
  padding: var(--space-l);
}

.panel--white {
  background: var(--hs-white);
}

.panel--rule {
  border-top: var(--border-rule) solid var(--line-strong);
}

.panel--edge {
  border-left: var(--border-edge) solid var(--hs-navy);
}

.bearings {
  display: grid;
  gap: var(--space-l);
  grid-template-columns: 1fr;
  list-style: none;
}

@media (min-width: 720px) {
  .bearings {
    grid-template-columns: repeat(3, 1fr);
  }
}

.bearing {
  border-top: var(--border-rule) solid var(--line-strong);
  padding-top: var(--space-m);
}

.section--navy .bearing {
  border-top-color: var(--hs-coastal-light);
}

.bearing__title {
  font-size: var(--size-subhead);
  margin-bottom: var(--space-s);
}

.bearing__body {
  font-size: var(--size-body-sm);
  color: var(--text-secondary);
}

/* A wider set of the same column pattern — used for audiences and formats. */
.rule-columns {
  display: grid;
  gap: var(--space-l) var(--space-m);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  list-style: none;
}

.rule-columns > li {
  border-top: var(--border-rule) solid var(--line-strong);
  padding-top: var(--space-m);
}

.rule-columns__title {
  font-size: var(--size-h3);
  margin-bottom: var(--space-xs);
}

.rule-columns__body {
  font-size: var(--size-body-sm);
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   8. Service menu — the home page list and the services overview
   -------------------------------------------------------------------------- */

.service-menu {
  list-style: none;
  border-bottom: var(--border-hairline) solid var(--line-hairline);
}

.service-menu__item {
  border-top: var(--border-hairline) solid var(--line-hairline);
}

.service-menu__link {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: var(--space-s) var(--space-l);
  padding-block: var(--space-m);
  text-decoration: none;
  color: inherit;
  transition: var(--transition-control);
}

.service-menu__link:hover {
  color: inherit;
  background: var(--surface-accent-wash);
  box-shadow: -12px 0 0 var(--surface-accent-wash), 12px 0 0 var(--surface-accent-wash);
}

.service-menu__name {
  font-size: var(--size-h3);
  font-weight: var(--weight-bold);
  color: var(--text-heading);
  letter-spacing: var(--tracking-heading);
  grid-column: 1;
}

.service-menu__summary {
  grid-column: 1;
  font-size: var(--size-body-sm);
  color: var(--text-secondary);
  max-width: 60ch;
  margin: 0;
}

.service-menu__meta {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  display: flex;
  align-items: center;
  gap: var(--space-m);
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-meta);
  white-space: nowrap;
}

.service-menu__arrow {
  color: var(--text-link);
  transition: transform var(--motion-fast) var(--ease-standard);
}

.service-menu__link:hover .service-menu__arrow {
  transform: translateX(3px);
}

@media (max-width: 640px) {
  .service-menu__meta {
    grid-column: 1;
    grid-row: auto;
    justify-content: space-between;
    width: 100%;
  }
}

.service-group + .service-group {
  margin-top: var(--space-xl);
}

.service-group__label {
  margin-bottom: var(--space-s);
}

/* --------------------------------------------------------------------------
   9. Cards — insights and other 3-up content
   -------------------------------------------------------------------------- */

.card-grid {
  display: grid;
  gap: var(--space-l);
  grid-template-columns: 1fr;
  list-style: none;
}

@media (min-width: 640px) {
  .card-grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .card-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
}

.card__media {
  margin-bottom: var(--space-s);
}

.card__title {
  font-size: var(--size-h3);
}

.card__title a {
  text-decoration: none;
  color: var(--text-heading);
}

.card__title a:hover {
  color: var(--text-link-hover);
}

.card__body {
  font-size: var(--size-body-sm);
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   10. Image placeholders
   No approved photography library has been supplied. Every image zone is a
   labelled placeholder until real documentary photography exists.
   -------------------------------------------------------------------------- */

.ph {
  background: var(--hs-fog);
  border: var(--border-hairline) dashed var(--hs-hairline);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-xs);
  padding: var(--space-m);
  min-height: 220px;
  color: var(--text-meta);
}

.ph--tall {
  min-height: 420px;
}

.ph--wide {
  min-height: 280px;
}

.ph--ratio {
  min-height: 0;
  aspect-ratio: 3 / 2;
}

.ph--edge {
  border: 0;
  border-left: var(--border-edge) solid var(--hs-navy);
}

.ph__label {
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.ph__note {
  font-size: var(--size-caption);
  max-width: 40ch;
  margin: 0;
  color: var(--text-meta);
}

/* Visible marker for copy that has not been supplied. Signal Red carries
   meaning here rather than decoration, which is the one use the brand allows. */
.content-todo {
  border-top: var(--border-rule) solid var(--status-critical);
  background: var(--status-critical-wash);
  padding: var(--space-m) var(--space-l) var(--space-l);
  max-width: 68ch;
}

.content-todo__label {
  font-size: var(--size-label);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--status-critical);
}

.content-todo__what {
  margin-top: var(--space-s);
  font-size: var(--size-subhead);
  font-weight: var(--weight-bold);
  line-height: var(--leading-subhead);
  letter-spacing: var(--tracking-heading);
  color: var(--text-heading);
}

.content-todo__detail {
  margin-top: var(--space-s);
  font-size: var(--size-body-sm);
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   11. Numbered method steps and fact rows
   -------------------------------------------------------------------------- */

.steps {
  list-style: none;
  border-bottom: var(--border-hairline) solid var(--line-hairline);
  counter-reset: step;
}

.steps > li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: var(--space-m);
  border-top: var(--border-hairline) solid var(--line-hairline);
  padding-block: var(--space-m);
}

.steps__num {
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  color: var(--text-accent);
  padding-top: 3px;
}

.steps__title {
  font-size: var(--size-h3);
  margin-bottom: var(--space-xs);
}

.steps__body {
  font-size: var(--size-body-sm);
  color: var(--text-secondary);
}

.facts {
  margin: var(--space-l) 0 0;
  border-top: var(--border-hairline) solid var(--line-hairline);
}

.facts__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-s) var(--space-m);
  padding-block: var(--space-s);
  border-bottom: var(--border-hairline) solid var(--line-soft);
}

.facts__term {
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-meta);
  margin: 0;
}

.facts__value {
  font-size: var(--size-body-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-heading);
  margin: 0;
  text-align: right;
}

.timeline {
  list-style: none;
  border-bottom: var(--border-hairline) solid var(--line-hairline);
}

.timeline > li {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xs) var(--space-l);
  border-top: var(--border-hairline) solid var(--line-hairline);
  padding-block: var(--space-m);
}

@media (min-width: 640px) {
  .timeline > li {
    grid-template-columns: 120px 1fr;
  }
}

.timeline__when {
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-accent);
}

.timeline__what {
  font-size: var(--size-body-sm);
  color: var(--text-secondary);
}

/* Plain bordered list — course catalogue, deliverables, exclusions. */
.rule-list {
  list-style: none;
  border-bottom: var(--border-hairline) solid var(--line-hairline);
}

.rule-list > li {
  border-top: var(--border-hairline) solid var(--line-hairline);
  padding-block: var(--space-s);
  font-size: var(--size-body-sm);
}

.rule-list--strong > li {
  font-weight: var(--weight-semibold);
  color: var(--text-heading);
}

.check-list {
  list-style: none;
}

.check-list > li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: var(--space-s);
  border-top: var(--border-hairline) solid var(--line-soft);
  padding-block: var(--space-s);
  font-size: var(--size-body-sm);
}

.check-list svg {
  color: var(--hs-coastal);
  margin-top: 4px;
}

.split {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: repeat(2, 1fr);
  }

  .split--wide-first {
    grid-template-columns: 1.15fr 1fr;
    align-items: center;
  }

  .split--wide-last {
    grid-template-columns: 1fr 1.35fr;
  }
}

/* --------------------------------------------------------------------------
   12. Breadcrumb
   -------------------------------------------------------------------------- */

.breadcrumb {
  border-bottom: var(--border-hairline) solid var(--line-soft);
  background: var(--hs-white);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-s);
  list-style: none;
  padding-block: var(--space-s);
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-meta);
}

.breadcrumb__list a {
  color: var(--text-meta);
  text-decoration: none;
}

.breadcrumb__list a:hover {
  color: var(--text-link-hover);
}

/* The wireframe renders the trail as one continuous caption, separators
   included. A lighter separator drops to 1.63:1 and reads as an artifact. */
.breadcrumb__sep {
  color: inherit;
}

/* --------------------------------------------------------------------------
   13. Article
   -------------------------------------------------------------------------- */

.article {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: start;
}

@media (min-width: 1000px) {
  .article {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: var(--space-hero);
  }
}

.article__aside {
  position: static;
  border-top: var(--border-rule) solid var(--line-strong);
  padding-top: var(--space-m);
}

@media (min-width: 1000px) {
  .article__aside {
    position: sticky;
    top: calc(var(--header-height) + var(--space-l));
  }
}

.toc {
  list-style: none;
  margin-bottom: var(--space-l);
}

.toc > li + li {
  margin-top: var(--space-s);
}

.toc a {
  font-size: var(--size-body-sm);
  text-decoration: none;
  color: var(--text-secondary);
  border-bottom: 1px solid transparent;
}

.toc a:hover {
  color: var(--text-link-hover);
  border-bottom-color: var(--hs-coastal);
}

.prose {
  max-width: 65ch;
}

.prose > * + * {
  margin-top: var(--space-m);
}

.prose h2 {
  font-size: var(--size-subhead);
  margin-top: var(--space-xl);
}

.prose h3 {
  font-size: var(--size-h3);
  margin-top: var(--space-l);
}

.prose ul,
.prose ol {
  padding-left: 1.25rem;
}

.prose li + li {
  margin-top: var(--space-xs);
}

.prose blockquote {
  margin: var(--space-l) 0;
  padding-left: var(--space-m);
  border-left: var(--border-rule) solid var(--hs-navy);
}

.prose blockquote p {
  font-size: var(--size-subhead);
  font-weight: var(--weight-bold);
  line-height: var(--leading-subhead);
  letter-spacing: var(--tracking-heading);
  color: var(--text-heading);
  max-width: 34ch;
}

.meta-rule {
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-meta);
}

/* Filter chips on the insights index */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s);
  list-style: none;
  margin-top: var(--space-l);
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  border: var(--border-hairline) solid var(--line-hairline);
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-core);
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-control);
}

.chip:hover {
  background: var(--hs-fog);
  color: var(--hs-navy);
}

.chip[aria-pressed="true"] {
  background: var(--hs-navy);
  border-color: var(--hs-navy);
  color: var(--hs-white);
}

/* --------------------------------------------------------------------------
   14. Forms
   -------------------------------------------------------------------------- */

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-m);
  max-width: 620px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.field__label {
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-meta);
}

.field__hint {
  font-size: var(--size-caption);
  color: var(--text-meta);
}

.field__error {
  font-size: var(--size-caption);
  font-weight: var(--weight-semibold);
  color: var(--status-critical);
}

.field__error:empty {
  display: none;
}

.input,
.textarea,
.select {
  width: 100%;
  font-family: var(--font-core);
  font-size: var(--size-body-sm);
  line-height: 1.5;
  color: var(--text-body);
  background: var(--hs-white);
  border: var(--border-hairline) solid var(--hs-hairline);
  border-radius: var(--radius-control);
  padding: 11px 12px;
  min-height: 44px;
  transition: var(--transition-control);
}

.input:hover,
.textarea:hover,
.select:hover {
  border-color: var(--hs-navy-60);
}

.input[aria-invalid="true"],
.textarea[aria-invalid="true"],
.select[aria-invalid="true"] {
  border-color: var(--status-critical);
  border-width: var(--border-emphasis);
}

.textarea {
  min-height: 120px;
  resize: vertical;
}

.select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--hs-navy) 50%),
    linear-gradient(135deg, var(--hs-navy) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 38px;
}

/* The label is the activation region, so padding here enlarges the target
   well past the 24px minimum without inflating the box itself. */
.checkbox {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: var(--space-s);
  align-items: center;
  min-height: 44px;
  padding-block: var(--space-xs);
  font-size: var(--size-body-sm);
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox input {
  width: 22px;
  height: 22px;
  margin: 0;
  accent-color: var(--hs-navy);
}

/* Spam honeypot — hidden from people, visible to naive bots. */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  border-top: var(--border-rule) solid var(--line-strong);
  padding-top: var(--space-m);
  font-size: var(--size-body-sm);
}

.form-status--error {
  border-top-color: var(--status-critical);
  color: var(--status-critical);
}

.form-status[hidden] {
  display: none;
}

/* Form on a navy field (home page closing band) */
.form--inverse .field__label {
  color: var(--text-accent-on-navy);
}

.form--inverse .field__hint {
  color: var(--text-on-navy-secondary);
}

.form--inverse .checkbox {
  color: var(--text-on-navy-secondary);
}

.form--inverse .form-status {
  border-top-color: var(--hs-coastal-light);
  color: var(--text-on-navy);
}

.form--inverse .field__error {
  color: #f0b8b3;
}

/* --------------------------------------------------------------------------
   15. Closing CTA band
   -------------------------------------------------------------------------- */

.cta-band {
  background: var(--surface-inverse);
  color: var(--text-on-navy);
  padding-block: var(--section-pad-tight);
}

.cta-band h2 {
  color: var(--hs-white);
}

.cta-band p {
  color: var(--text-on-navy-secondary);
  margin-top: var(--space-s);
}

.cta-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-l);
}

.cta-band__inner > div {
  max-width: 60ch;
}

/* --------------------------------------------------------------------------
   16. Footer
   -------------------------------------------------------------------------- */

.site-footer {
  background: var(--surface-inverse);
  color: var(--text-on-navy);
  padding: var(--space-xxl) 0 var(--space-l);
  border-top: var(--border-hairline) solid var(--line-on-navy);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .site-footer__grid {
    grid-template-columns: minmax(220px, 1.4fr) repeat(3, 1fr);
  }
}

.site-footer__logo img {
  height: 40px;
  width: auto;
}

.site-footer__descriptor {
  margin-top: var(--space-m);
  font-size: var(--size-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-on-navy-secondary);
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer__col-title {
  font-size: var(--size-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-accent-on-navy);
  margin-bottom: var(--space-xs);
}

.site-footer__col a {
  font-size: 15px;
  color: var(--text-on-navy-secondary);
  text-decoration: none;
}

.site-footer__col a:hover {
  color: var(--hs-white);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer__base {
  margin-top: var(--space-xl);
  padding-top: var(--space-m);
  border-top: var(--border-hairline) solid var(--line-on-navy);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-s) var(--space-m);
  font-size: var(--size-caption);
  color: var(--text-on-navy-secondary);
}

/* --------------------------------------------------------------------------
   17. Utilities
   -------------------------------------------------------------------------- */

.mt-s {
  margin-top: var(--space-s);
}

.mt-m {
  margin-top: var(--space-m);
}

.mt-l {
  margin-top: var(--space-l);
}

.mt-xl {
  margin-top: var(--space-xl);
}

.mb-m {
  margin-bottom: var(--space-m);
}

.mb-l {
  margin-bottom: var(--space-l);
}

.measure-narrow {
  max-width: var(--measure-narrow);
}

.no-measure {
  max-width: none;
}

[hidden] {
  display: none !important;
}

.rule-list--2col {
  columns: 2;
  column-gap: var(--space-xl);
}

@media (max-width: 640px) {
  .rule-list--2col {
    columns: 1;
  }
}

/* --------------------------------------------------------------------------
   18. Small component pieces
   Kept as classes rather than style attributes so the Content-Security-Policy
   can forbid inline styles outright.
   -------------------------------------------------------------------------- */

.flush {
  margin: 0;
}

.section--flush {
  padding-block: 0;
}

.on-navy-heading {
  color: var(--hs-white);
}

.edge__logo {
  width: min(200px, 60%);
  height: auto;
}

.contact-details {
  margin: 0;
}

.contact-details dd {
  margin: var(--space-xs) 0 0;
  color: var(--text-on-navy);
}

.contact-response {
  border-top: var(--border-hairline) solid var(--line-on-navy);
  padding-top: var(--space-m);
  margin: 0;
}

.self-start {
  justify-self: start;
}

.plain-link {
  text-decoration: none;
  color: inherit;
}

.plain-link:hover {
  color: var(--text-link-hover);
}

.panel--flexible {
  flex: 1 1 420px;
}

.aside__service-name {
  font-size: var(--size-h3);
}