/* Shared foundation for the English and future Polish pages. */
:root {
  color-scheme: dark;
  --color-background: #171a1d;
  --color-surface: #1e2327;
  --color-text: #f3f5f5;
  --color-muted: #b7c0c5;
  --color-accent: #25c9c3;
  --color-accent-hover: #59d9d4;
  --color-on-accent: #101b1c;
  --color-border: #353d43;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --content-width: 1160px;
  --page-gutter: clamp(20px, 4vw, 48px);
  --radius-small: 6px;
}

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

html {
  background: var(--color-background);
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-underline-offset: 0.25em;
}

a:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 5px;
}

::selection {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.container {
  width: min(var(--content-width), calc(100% - 2 * var(--page-gutter)));
  margin-inline: auto;
}

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

.skip-link {
  position: absolute;
  z-index: 10;
  top: 12px;
  left: var(--page-gutter);
  padding: 10px 16px;
  background: var(--color-accent);
  color: var(--color-on-accent);
  border-radius: var(--radius-small);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

/* Header: navigation stays visible as a fallback without JavaScript. */
.site-header {
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-block: 14px;
}

.brand {
  flex: 0 0 210px;
  border-radius: 2px;
}

.brand img {
  width: 210px;
}

.primary-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 24px;
  padding: 0;
  margin: 0;
  list-style: none;
  font-size: 14px;
}

.nav-list a,
.nav-pending {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  gap: 6px;
}

.nav-list a {
  text-decoration: none;
  text-decoration-thickness: 1px;
  transition: color 140ms ease;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
}

.nav-pending {
  color: var(--color-muted);
  cursor: default;
}

.language-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 24px;
  border-left: 1px solid var(--color-border);
  font-size: 13px;
  font-weight: 600;
}

.language-nav [aria-current] {
  color: var(--color-accent);
}

.language-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-muted);
  text-decoration: none;
}

.language-nav a:hover,
.language-nav a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
}

.language-divider {
  color: var(--color-muted);
  font-weight: 400;
}

/* Hero: commercial message first, authentic reconstruction second. */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(32px, 5vw, 72px);
  padding-block: 40px 32px;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 650;
  line-height: 1.13;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.hero-summary {
  max-width: 52ch;
  margin: 28px 0 0;
  color: var(--color-muted);
  font-size: 18px;
  line-height: 1.7;
}

.hero-disciplines {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--color-muted);
}

.hero-disciplines span {
  color: var(--color-accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  gap: 18px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font-size: 15px;
  font-weight: 650;
  line-height: 1.4;
  text-decoration: none;
  transition: background-color 140ms ease, border-color 140ms ease;
}

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

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-accent-hover);
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  gap: 8px;
  font-size: 14px;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--color-muted);
  transition: color 140ms ease, text-decoration-color 140ms ease;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--color-accent);
  text-decoration-color: currentColor;
}

.hero-location {
  margin: 36px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.hero-location span {
  margin-inline: 5px;
}

.hero-visual {
  min-width: 0;
  margin: 0;
}

.hero-image-frame {
  position: relative;
  display: grid;
  place-items: center;
  isolation: isolate;
  padding-block: 8px;
}

.hero-image-frame::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  /* A soft graphite backdrop blends into the page without a visible frame. */
  background: radial-gradient(
    ellipse at 50% 50%,
    #202428 0%,
    #1b1f22 40%,
    transparent 72%
  );
}

.hero-tower {
  width: auto;
  height: 550px;
  /* Use the image's transparent margins to enlarge the tower without a taller hero. */
  margin-block: -30px;
  max-width: 100%;
  object-fit: contain;
}

.hero-visual figcaption {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 12px;
  margin-top: 16px;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.6;
}

.figure-marker {
  width: 24px;
  height: 1px;
  margin-top: 10px;
  background: var(--color-accent);
}

.hero-visual strong {
  color: var(--color-text);
  font-size: 13px;
  font-weight: 500;
}

.figure-description {
  display: block;
}

/* Introduction, services and workflow share an open layout with thin dividers. */
.content-section {
  padding-block: 64px;
  border-top: 1px solid var(--color-border);
}

.content-section h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.content-section h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
}

.content-section p {
  color: var(--color-muted);
}

.introduction {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  align-items: start;
  gap: 48px;
  padding-block: 48px;
}

.introduction p {
  max-width: 65ch;
  margin: 0;
}

.section-heading {
  max-width: 65ch;
  margin-bottom: 32px;
}

.section-heading p {
  margin: 14px 0 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 36px 64px;
}

.service-group {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.service-visual {
  display: block;
  width: min(100%, 320px);
  height: 160px;
  margin: 0 auto 20px;
}

.service-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.service-group p {
  max-width: 56ch;
  margin: 14px 0 18px;
  font-size: 16px;
}

.service-group ul {
  padding-left: 18px;
  margin: 0;
  color: var(--color-muted);
  font-size: 15px;
}

.service-group li + li {
  margin-top: 6px;
}

.service-group li::marker {
  color: var(--color-accent);
  font-size: 0.75em;
}

.services-note {
  margin: 32px 0 0;
  font-size: 15px;
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.workflow-step {
  position: relative;
  min-width: 0;
}

.workflow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 18px;
  left: 48px;
  right: -12px;
  height: 1px;
  background: var(--color-border);
}

.step-number {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-accent);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.step-copy {
  margin-top: 20px;
}

.step-copy h3 {
  font-size: 17px;
}

.step-copy p {
  margin: 12px 0 0;
  font-size: 15px;
}

.dataset-review-note {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 24px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.dataset-review-note h3 {
  font-size: 17px;
}

.dataset-review-note p {
  max-width: 80ch;
  margin: 0;
  font-size: 15px;
}

/* Featured Work: one optional lead article, then a grid of any length. */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px 40px;
}

.project {
  min-width: 0;
}

.project-lead {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  align-items: center;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-border);
}

.project-figure {
  margin: 0;
}

.project-cover {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-small);
}

.project-figure figcaption {
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 13px;
}

.tower-figure {
  text-align: center;
}

.tower-figure img {
  width: 100%;
  height: 520px;
  /* Reclaim transparent image margins without increasing the lead row height. */
  margin-block: -25px;
  object-fit: contain;
}

.tower-figure figcaption {
  margin-top: 20px;
}

.project-copy {
  margin-top: 24px;
}

.project-lead .project-copy {
  margin-top: 0;
}

.project-copy .project-category {
  margin: 0 0 10px;
  color: var(--color-accent);
  font-size: 13px;
}

.project-copy h3 {
  font-size: 24px;
  letter-spacing: -0.02em;
}

.project-lead h3 {
  font-size: 30px;
}

.project-copy > p {
  margin: 16px 0;
  font-size: 16px;
}

.project-finding {
  margin-block: 24px;
  padding-left: 18px;
  border-left: 2px solid var(--color-accent);
}

.project-finding h4 {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
}

.project-finding p {
  margin: 0;
  color: var(--color-text);
  font-size: 17px;
}

.project-copy .project-tools,
.project-copy .project-limitation {
  font-size: 14px;
}

.processing-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
  min-height: 340px;
  aspect-ratio: 4 / 3;
  padding: 28px 32px;
  background: #191d20;
  border-block: 1px solid var(--color-border);
}

.processing-panel p {
  margin: 0;
}

.processing-input {
  font-size: 15px;
}

.processing-input strong {
  margin-right: 8px;
  color: var(--color-text);
  font-size: 36px;
  font-weight: 600;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.025em;
}

.processing-stages {
  margin: 0;
  padding: 0 0 0 18px;
  border-left: 1px solid var(--color-accent);
  list-style: none;
  font-size: 15px;
}

.processing-stages li + li {
  margin-top: 8px;
}

.processing-outputs {
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  font-size: 14px;
}

.processing-outputs span {
  display: block;
  margin-bottom: 6px;
  color: var(--color-text);
}

@media (max-width: 1050px) {
  .project-grid {
    gap: 40px 28px;
  }

  .project-lead {
    gap: 28px;
  }

  .processing-panel {
    aspect-ratio: auto;
    min-height: 0;
    padding: 24px;
  }
}

@media (max-width: 720px) {
  .project-grid,
  .project-lead {
    grid-template-columns: minmax(0, 1fr);
  }

  .project-lead {
    gap: 24px;
    padding-bottom: 32px;
  }

  .tower-figure img {
    height: 390px;
    margin-block: -20px;
  }

  .project-lead h3 {
    font-size: 26px;
  }

  .project + .project:not(.project-lead) {
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
  }

  .project-lead + .project:not(.project-lead) {
    padding-top: 0;
    border-top: 0;
  }
}

/* Tablet and zoomed layouts: put navigation on its own line. */
@media (max-width: 1050px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 4px 24px;
    padding-block: 8px 4px;
  }

  .language-nav {
    margin-left: auto;
  }

  .primary-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
  }

  .hero {
    gap: 32px;
    padding-block: 36px 28px;
  }

  .desktop-break {
    display: none;
  }

  .hero-tower {
    height: 470px;
    margin-block: -25px;
  }

  .workflow-steps {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .workflow-step {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 20px;
  }

  .workflow-step:not(:last-child)::after {
    top: 44px;
    bottom: -20px;
    left: 18px;
    right: auto;
    width: 1px;
    height: auto;
  }

  .step-copy {
    max-width: 65ch;
    margin-top: 4px;
  }

  .step-copy p {
    margin-top: 8px;
  }

  .service-grid {
    column-gap: 32px;
  }
}

/* Mobile: preserve copy-first reading order and a compact full tower. */
@media (max-width: 720px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
    padding-block: 36px 28px;
  }

  h1 {
    max-width: 18ch;
    font-size: clamp(32px, 6.3vw, 40px);
  }

  .hero-summary {
    margin-top: 22px;
    font-size: 17px;
  }

  .hero-actions {
    margin-top: 28px;
  }

  .hero-location {
    margin-top: 24px;
  }

  .hero-visual {
    width: min(100%, 380px);
    justify-self: center;
  }

  .hero-tower {
    height: 370px;
    margin-block: -20px;
  }

  .content-section {
    padding-block: 48px;
  }

  .introduction,
  .service-grid,
  .dataset-review-note {
    grid-template-columns: minmax(0, 1fr);
  }

  .introduction {
    gap: 20px;
    padding-block: 36px;
  }

  .section-heading {
    margin-bottom: 28px;
  }

  .dataset-review-note {
    gap: 12px;
    margin-top: 32px;
  }
}

@media (max-width: 400px) {
  .brand {
    flex-basis: 160px;
  }

  .language-nav {
    gap: 8px;
    padding-left: 12px;
  }

  .header-inner {
    column-gap: 12px;
  }

  .nav-list {
    column-gap: 18px;
    font-size: 13px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

/* Supporting work stays compact, without imagery or card surfaces. */
.technical-work,
.capabilities {
  padding-block: 48px;
}

.technical-work h2,
.capabilities h2 {
  font-size: 26px;
}

.technical-row,
.capability-list > div,
.about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 40px;
}

.technical-row {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.technical-row + .technical-row {
  margin-top: 24px;
}

.technical-row h3 {
  font-size: 18px;
}

.technical-row p {
  max-width: 72ch;
  margin: 0 0 8px;
  font-size: 16px;
}

.capability-list {
  margin: 0;
  font-size: 16px;
}

.capability-list > div {
  padding-block: 18px;
  border-top: 1px solid var(--color-border);
}

.capability-list > div:last-child {
  padding-bottom: 0;
}

.capability-list dt {
  font-weight: 500;
}

.capability-list dd {
  max-width: 72ch;
  margin: 0;
  color: var(--color-muted);
}

.about-copy p {
  max-width: 68ch;
  margin: 16px 0 0;
  font-size: 16px;
}

.contact h2 {
  max-width: 26ch;
  text-wrap: balance;
}

.contact .eyebrow {
  margin-bottom: 16px;
}

.contact-summary {
  max-width: 64ch;
  margin: 20px 0 0;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  margin-top: 28px;
}

.contact-channel {
  margin: 12px 0 0;
  font-size: 13px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 40px;
  padding-block: 28px;
  border-top: 1px solid var(--color-border);
  font-size: 14px;
}

.footer-identity p {
  margin: 0;
}

.footer-identity p + p {
  margin-top: 4px;
  color: var(--color-muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (max-width: 720px) {
  .technical-row,
  .capability-list > div,
  .about {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .about {
    gap: 24px;
  }

  .technical-work,
  .capabilities {
    padding-block: 40px;
  }
}

/* Mobile/tablet polish: keep all approved desktop rules above 768px intact. */
@media (max-width: 768px) {
  .content-section {
    padding-block: 52px 44px;
  }

  .introduction,
  .technical-work,
  .capabilities {
    padding-block: 40px;
  }

  .section-heading {
    margin-bottom: 32px;
  }

  .service-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px 28px;
  }

  .service-visual {
    width: min(100%, 360px);
    height: auto;
    margin-bottom: 24px;
  }

  .service-visual img {
    height: auto;
    max-height: 280px;
  }

  .service-group h3 {
    padding-left: 12px;
    border-left: 2px solid var(--color-accent);
  }

  .service-group p {
    margin-block: 12px 16px;
  }

  .service-group li + li {
    margin-top: 8px;
  }

  .services-note {
    margin-top: 28px;
  }

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

  .project-grid {
    row-gap: 32px;
  }

  .project-lead {
    gap: 20px;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .project + .project:not(.project-lead) {
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
  }

  .tower-figure img {
    height: clamp(300px, 80vw, 360px);
    margin-block: -20px;
  }

  .project-cover {
    max-height: 380px;
  }

  .project-copy {
    margin-top: 18px;
  }

  .processing-panel {
    gap: 16px;
    padding: 24px 20px;
  }

  .nav-list {
    column-gap: 20px;
    font-size: 14px;
  }

  .language-nav a {
    justify-content: center;
    min-width: 28px;
  }
}

@media (max-width: 720px) {
  .hero {
    gap: 28px;
  }

  .hero-tower {
    height: 340px;
  }
}

/* Final mobile polish; approved desktop and Services styles stay intact. */
@media (max-width: 768px) {
  .header-inner {
    gap: 0 8px;
    padding-block: 10px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    flex: 1 1 0;
    min-width: 0;
    min-height: 44px;
  }

  .brand img {
    width: min(100%, 210px);
  }

  .language-nav {
    flex-shrink: 0;
    gap: 0;
    padding-left: 0;
    border-left: 0;
  }

  .language-nav a {
    min-width: 44px;
  }

  .menu-toggle:not([hidden]) {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    background: var(--color-background);
    color: var(--color-text);
    cursor: pointer;
  }

  .menu-toggle span {
    width: 20px;
    height: 2px;
    background: currentColor;
  }

  .menu-toggle[aria-expanded="true"] {
    color: var(--color-accent);
  }

  .menu-toggle:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
  }

  .primary-nav {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--color-border);
    background: var(--color-background);
  }

  .nav-list {
    display: block;
  }

  .nav-list a {
    display: flex;
    padding-inline: 8px;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding-block: 28px 24px;
  }

  .hero .eyebrow {
    margin-bottom: 16px;
  }

  .hero h1 {
    max-width: 18ch;
    font-size: clamp(32px, 6.3vw, 40px);
  }

  .hero-summary {
    margin-top: 18px;
    font-size: 17px;
  }

  .hero-disciplines {
    margin-top: 16px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-top: 22px;
  }

  .hero-location {
    margin-top: 18px;
  }

  .hero-visual {
    width: min(100%, 380px);
    justify-self: center;
  }

  .hero-tower {
    height: 340px;
    margin-block: -20px;
  }

  .workflow-steps {
    gap: 22px;
  }

  .workflow-step:not(:last-child)::after {
    bottom: -14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .button,
  .nav-list a,
  .text-link {
    transition: none;
  }
}