/* Walkür Technology — corporate identity, September 2026. */
:root {
  color-scheme: dark;
  --color-bg: #080d14;
  --color-surface: #0b121b;
  --color-text: #f3f4ef;
  --color-muted: #a3afb9;
  --color-accent: #93d5e4;
  --color-line: #27323d;
  --gutter: clamp(24px, 5vw, 72px);
  --shell: 1320px;
  --font: Arial, Helvetica, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 32px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-underline-offset: 5px;
  text-decoration-thickness: 1px;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 7px;
  border-radius: 1px;
}

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

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

p,
h1,
h2,
h3,
h4 {
  margin: 0;
}

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

.skip-link {
  position: absolute;
  z-index: 10;
  top: 14px;
  left: var(--gutter);
  padding: 10px 16px;
  color: var(--color-bg);
  background: var(--color-text);
  transform: translateY(-160%);
}

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

.site-header {
  position: relative;
  z-index: 2;
}

.header-inner {
  display: flex;
  align-items: center;
  min-height: 104px;
  gap: 36px;
  border-bottom: 1px solid var(--color-line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
}

.brand-mark {
  width: 58px;
  height: auto;
  color: var(--color-text);
}

.brand-name {
  display: flex;
  flex-direction: column;
  font-size: 17px;
  line-height: 1.1;
  letter-spacing: .055em;
  font-weight: 600;
}

.brand-name small {
  margin-top: 5px;
  font-size: 8px;
  font-weight: 400;
  letter-spacing: .22em;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(22px, 3.4vw, 48px);
  margin-left: auto;
}

.primary-nav a,
.language-switch a,
.footer-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.3;
  text-decoration: none;
  transition: color 180ms ease;
}

.primary-nav a::after,
.footer-nav a::after {
  position: absolute;
  right: 0;
  bottom: 8px;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.primary-nav a:hover,
.language-switch a:hover,
.footer-nav a:hover {
  color: var(--color-text);
}

.primary-nav a:hover::after,
.footer-nav a:hover::after {
  transform: scaleX(1);
}

.language-switch {
  display: flex;
  align-items: center;
  gap: 13px;
  padding-left: 27px;
  border-left: 1px solid var(--color-line);
}

.language-switch a {
  font-size: 10px;
  letter-spacing: .055em;
}

.language-switch a[aria-current="page"] {
  color: var(--color-text);
}

.hero {
  position: relative;
  width: 100%;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(200px, .44fr);
  grid-template-rows: 1fr auto;
  align-items: center;
  min-height: 620px;
  padding-block: 70px 25px;
  gap: 48px 20px;
}

.hero-copy {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.eyebrow {
  color: var(--color-muted);
  font-size: 10px;
  line-height: 1.5;
  font-weight: 400;
  letter-spacing: .17em;
  text-transform: uppercase;
}

.hero-copy > .eyebrow {
  margin-bottom: 27px;
}

.hero-title {
  font-size: clamp(58px, 8.1vw, 126px);
  font-weight: 500;
  line-height: .97;
  letter-spacing: -.065em;
}

.hero-title > span {
  display: block;
}

.hero-title > span + span {
  margin-top: 5px;
}

.brand-period {
  color: var(--color-accent);
}

.contact-email .arrow {
  margin-left: 14px;
}

.hero-baseline a span {
  margin-left: 16px;
}

.hero-description {
  max-width: 430px;
  margin-top: 30px;
  color: var(--color-muted);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.65;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 23px;
  min-height: 44px;
  padding-block: 8px;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-text);
  font-size: 12px;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color 180ms ease, color 180ms ease;
}

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

.hero-copy > .text-link {
  margin-top: 22px;
}

.arrow {
  display: inline-block;
  color: var(--color-accent);
  font-size: 20px;
  line-height: 1;
  transition: transform 220ms ease;
}

.text-link:hover .arrow {
  transform: translate(3px, -3px);
}

.hero-emblem {
  position: relative;
  width: 100%;
  max-width: 355px;
  justify-self: end;
  color: #213340;
  transform: translateY(-7px);
  pointer-events: none;
}

.hero-emblem svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

.hero-baseline {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 42px;
  padding-top: 21px;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 10px;
  letter-spacing: .05em;
}

.hero-baseline a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  text-decoration: none;
  transition: color 180ms ease;
}

.hero-baseline a:hover {
  color: var(--color-accent);
}

.section {
  padding-block: 116px;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 70px;
}

.section-label {
  display: flex;
  align-items: baseline;
  gap: 22px;
}

.section-number,
.project-index {
  color: var(--color-accent);
  font-size: 10px;
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: .08em;
}

.section-label h2 {
  font-size: 12px;
  line-height: 1.5;
  font-weight: 400;
}

.section-body {
  max-width: 700px;
}

.statement {
  max-width: 650px;
  margin-top: -8px;
  font-size: clamp(30px, 3.5vw, 47px);
  font-weight: 400;
  line-height: 1.19;
  letter-spacing: -.035em;
  text-wrap: pretty;
}

.body-copy {
  max-width: 565px;
  color: var(--color-muted);
  font-size: 15px;
  line-height: 1.8;
}

.section-body > .body-copy {
  margin-top: 25px;
}

.disciplines {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 22px;
  margin-top: 28px;
  color: var(--color-muted);
  font-size: 11px;
  line-height: 1.8;
}

.disciplines span {
  white-space: nowrap;
}

.project-section {
  padding-top: 0;
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 28px;
  padding-block: 37px 38px;
  border-top: 1px solid var(--color-line);
}

.section-title {
  font-size: clamp(24px, 3vw, 37px);
  line-height: 1.2;
  letter-spacing: -.035em;
  font-weight: 400;
}

.project {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(44px, 7vw, 108px);
  padding-block: 48px 55px;
  border-top: 1px solid var(--color-line);
}

.project-identity,
.project-detail {
  min-width: 0;
}

.project-index {
  display: block;
  margin-bottom: 27px;
}

.project-title {
  font-size: clamp(37px, 4.4vw, 63px);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -.045em;
}

.project-domain {
  margin-top: 14px;
  color: var(--color-muted);
  font-size: 12px;
}

.project-kicker {
  margin-bottom: 18px;
  color: var(--color-accent);
  font-size: 10px;
  line-height: 1.6;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.project-subtitle {
  max-width: 450px;
  margin-bottom: 19px;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.3;
  letter-spacing: -.025em;
  font-weight: 400;
  text-wrap: pretty;
}

.project-detail > .text-link {
  margin-top: 22px;
}

.project-note {
  padding-top: 23px;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 11px;
  line-height: 1.8;
}

.contact-section {
  padding-block: 76px 82px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(44px, 7vw, 108px);
  align-items: end;
}

.contact-title {
  max-width: 600px;
  margin-top: 23px;
  font-size: clamp(33px, 4.5vw, 61px);
  line-height: 1.1;
  font-weight: 400;
  letter-spacing: -.045em;
  text-wrap: pretty;
}

.contact-email {
  display: inline-block;
  max-width: 100%;
  margin-bottom: 21px;
  padding-block: 6px;
  color: var(--color-text);
  font-size: clamp(20px, 2.4vw, 32px);
  line-height: 1.4;
  letter-spacing: -.02em;
  overflow-wrap: anywhere;
  text-decoration-color: var(--color-line);
  text-underline-offset: 8px;
  transition: color 180ms ease, text-decoration-color 180ms ease;
}

.contact-email:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

.contact-person,
.contact-location {
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.8;
}

[hidden] {
  display: none !important;
}

.email-contact > summary {
  cursor: pointer;
  list-style: none;
  text-decoration-line: underline;
}

.email-contact > summary::-webkit-details-marker {
  display: none;
}

.email-contact[open] > summary .arrow {
  transform: rotate(90deg);
}

.email-options {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 22px;
  margin-bottom: 20px;
}

.email-options button {
  padding-inline: 0;
  border-top: 0;
  border-right: 0;
  border-left: 0;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
}

.email-status {
  flex-basis: 100%;
  color: var(--color-muted);
  font-size: 12px;
}

.email-status:empty {
  display: none;
}

.email-fallback {
  overflow-wrap: anywhere;
  color: var(--color-muted);
}

.email-contact-legal {
  margin-top: 20px;
}

.email-contact-legal > summary {
  margin-bottom: 10px;
  font-size: 18px;
}

.footer-inner {
  display: flex;
  align-items: center;
  min-height: 112px;
  gap: 30px;
}

.footer-brand {
  color: var(--color-text);
  font-size: 10px;
  letter-spacing: .085em;
  line-height: 1.6;
  text-decoration: none;
  text-transform: uppercase;
}

.footer-copyright {
  margin-left: auto;
  color: var(--color-muted);
  font-size: 10px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-nav a {
  font-size: 10px;
}

/* Legal documents share the identity and retain comfortable reading measures. */
.legal-main {
  padding-block: 38px 110px;
}

.legal-shell {
  max-width: 860px;
}

.legal-shell > .text-link {
  margin-bottom: 65px;
}

.legal-shell > .eyebrow {
  margin-bottom: 20px;
}

.legal-title {
  margin-bottom: 29px;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.08;
  font-weight: 400;
  letter-spacing: -.045em;
  overflow-wrap: break-word;
}

.legal-intro {
  max-width: 700px;
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.85;
}

.legal-section {
  margin-top: 42px;
  padding-top: 29px;
  border-top: 1px solid var(--color-line);
  overflow-wrap: anywhere;
}

.legal-section h2 {
  margin-bottom: 16px;
  font-size: 21px;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -.015em;
}

.legal-section h3 {
  margin-block: 24px 12px;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 500;
}

.legal-section p,
.legal-section li,
.legal-section address {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.85;
  font-style: normal;
}

.legal-section p + p,
.legal-section address + p,
.legal-section p + address {
  margin-top: 16px;
}

.legal-section ul {
  padding-left: 20px;
}

.legal-section li + li {
  margin-top: 9px;
}

.legal-section a,
.legal-intro a {
  color: var(--color-text);
  text-decoration-color: var(--color-line);
}

.legal-section a:hover,
.legal-intro a:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy > .eyebrow {
    animation: hero-enter 700ms 30ms both;
  }

  .hero-title {
    animation: hero-enter 850ms 100ms both;
  }

  .hero-description,
  .hero-copy > .text-link {
    animation: hero-enter 850ms 210ms both;
  }

  .hero-emblem {
    animation: emblem-enter 1200ms 120ms both;
  }

  @keyframes hero-enter {
    from { opacity: .15; transform: translateY(13px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes emblem-enter {
    from { opacity: .15; transform: translate(12px, 3px); }
    to { opacity: 1; transform: translate(0, -7px); }
  }
}

@media (min-width: 1600px) {
  .hero-inner {
    min-height: 680px;
  }
}

@media (max-width: 1000px) {
  .header-inner {
    gap: 24px;
    min-height: 92px;
  }

  .primary-nav {
    gap: 23px;
  }

  .language-switch {
    padding-left: 23px;
  }

  .hero-inner {
    min-height: 580px;
    grid-template-columns: minmax(0, 1fr) minmax(170px, .4fr);
    gap: 48px 18px;
    padding-top: 64px;
  }

  .hero-title {
    font-size: clamp(52px, 8.3vw, 83px);
  }

  .hero-description {
    max-width: 365px;
  }

  .section {
    padding-block: 90px;
  }

  .section-grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 2fr);
    gap: 45px;
  }

  .project-section {
    padding-top: 0;
  }

  .footer-inner {
    flex-wrap: wrap;
    gap: 0 24px;
    padding-block: 25px;
  }
}

@media (max-width: 700px) {
  :root {
    --gutter: 25px;
  }

  .header-inner {
    min-height: 84px;
    gap: 20px;
  }

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

  .brand-name {
    font-size: 14px;
  }

  .brand-name small {
    font-size: 7px;
    letter-spacing: .16em;
  }

  .primary-nav {
    display: none;
  }

  .language-switch {
    margin-left: auto;
    padding-left: 0;
    border: 0;
    gap: 16px;
  }

  .language-switch a {
    min-width: 22px;
    justify-content: center;
  }

  .hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    padding-block: 58px 20px;
    gap: 42px 0;
  }

  .hero-copy > .eyebrow {
    max-width: 215px;
    margin-bottom: 27px;
    font-size: 9px;
  }

  .hero-title {
    font-size: clamp(46px, 10.45vw, 72px);
    line-height: 1;
    letter-spacing: -.06em;
  }

  .hero-title > span + span {
    margin-top: 4px;
  }

  .hero-description {
    max-width: 330px;
    margin-top: 27px;
    font-size: 16px;
    line-height: 1.65;
  }

  .hero-copy > .text-link {
    margin-top: 18px;
  }

  .hero-emblem {
    position: absolute;
    top: 33px;
    right: 0;
    width: 83px;
    color: #243846;
    opacity: .85;
  }

  .hero-baseline {
    gap: 18px;
    padding-top: 14px;
    font-size: 9px;
    letter-spacing: 0;
  }

  .section {
    padding-block: 66px;
  }

  .section-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .section-label {
    gap: 15px;
  }

  .section-label h2 {
    font-size: 11px;
  }

  .statement {
    margin-top: 0;
    font-size: clamp(30px, 6.2vw, 39px);
    line-height: 1.22;
  }

  .body-copy {
    font-size: 14px;
    line-height: 1.85;
  }

  .section-body > .body-copy {
    margin-top: 23px;
  }

  .disciplines {
    margin-top: 24px;
    gap: 5px 14px;
    font-size: 10px;
  }

  .project-section {
    padding-top: 0;
  }

  .section-heading {
    display: block;
    padding-block: 30px;
  }

  .section-title {
    margin-top: 13px;
    font-size: 30px;
  }

  .project {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
    padding-block: 32px 38px;
  }

  .project-index {
    margin-bottom: 17px;
  }

  .project-title {
    font-size: clamp(36px, 8.5vw, 50px);
  }

  .project-domain {
    margin-top: 10px;
    font-size: 11px;
  }

  .project-kicker {
    margin-bottom: 15px;
    font-size: 9px;
  }

  .project-subtitle {
    max-width: 400px;
    font-size: 27px;
  }

  .project-note {
    font-size: 10px;
  }

  .contact-section {
    padding-block: 51px 49px;
  }

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

  .contact-title {
    max-width: 400px;
    margin-top: 18px;
    font-size: clamp(35px, 8.4vw, 48px);
  }

  .contact-email {
    margin-bottom: 16px;
    font-size: clamp(21px, 5.8vw, 30px);
  }

  .footer-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 13px;
    padding-block: 28px 22px;
  }

  .footer-brand {
    font-size: 10px;
  }

  .footer-copyright {
    margin-left: 0;
    font-size: 9px;
  }

  .footer-nav {
    gap: 22px;
    margin-top: -3px;
  }

  .legal-main {
    padding-block: 25px 65px;
  }

  .legal-shell > .text-link {
    margin-bottom: 42px;
  }

  .legal-title {
    font-size: clamp(31px, 8.8vw, 50px);
  }

  .legal-intro {
    font-size: 14px;
  }

  .legal-section {
    margin-top: 33px;
    padding-top: 24px;
  }

  .legal-section h2 {
    font-size: 20px;
  }

  .legal-section p,
  .legal-section li,
  .legal-section address {
    font-size: 13px;
  }
}

@media (max-width: 359px) {
  :root {
    --gutter: 22px;
  }

  .hero-title {
    font-size: 10.3vw;
  }

  .hero-emblem {
    width: 65px;
  }

  .hero-copy > .eyebrow {
    max-width: 180px;
  }

  .hero-baseline {
    font-size: 8px;
  }

  .statement {
    font-size: 28px;
  }

  .contact-title {
    font-size: 32px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media print {
  :root {
    color-scheme: light;
    --color-bg: #fff;
    --color-surface: #fff;
    --color-text: #111;
    --color-muted: #444;
    --color-accent: #111;
    --color-line: #bbb;
  }

  .primary-nav,
  .language-switch,
  .hero-emblem,
  .skip-link {
    display: none;
  }

  .hero-inner {
    min-height: 0;
  }

  .section,
  .contact-section {
    padding-block: 30px;
  }

  .legal-section,
  .project {
    break-inside: avoid;
  }
}