@font-face {
  font-family: Qalab;
  src: local("Inter"), local("Segoe UI"), local("Arial");
  font-display: swap;
}
:root {
  color-scheme: dark;
  --bg: #080e18;
  --panel: #0d1624;
  --text: #f1f6fc;
  --muted: #a4b3c8;
  --blue: #74aaff;
  --cyan: #63dcf3;
  --line: #233044;
  --font: Qalab, Inter, "Segoe UI", Arial, sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
::selection {
  background: #305384;
  color: #fff;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select,
textarea {
  font: inherit;
}
button,
a,
input,
select,
textarea,
summary {
  -webkit-tap-highlight-color: transparent;
}
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 5px;
}
button {
  cursor: pointer;
}
img {
  max-width: 100%;
  height: auto;
}
h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}
h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.045em;
}
h2 {
  font-size: clamp(2rem, 3.7vw, 3.5rem);
  margin-bottom: 24px;
}
h3 {
  font-size: 1.5rem;
}
p {
  color: var(--muted);
}
.container {
  width: min(1260px, calc(100% - 96px));
  margin-inline: auto;
}
.eyebrow {
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  line-height: 1.6;
  color: var(--cyan);
  margin-bottom: 24px;
}
.section {
  padding-block: 104px;
}
.section-border {
  border-top: 1px solid var(--line);
}
.skip-link {
  position: absolute;
  z-index: 100;
  top: 12px;
  left: 12px;
  background: var(--cyan);
  color: var(--bg);
  padding: 10px 16px;
  transform: translateY(-200%);
}
.skip-link:focus {
  transform: translateY(0);
}
.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  background: rgba(8, 14, 24, 0.95);
  border-bottom: 1px solid rgba(35, 48, 68, 0.65);
  backdrop-filter: blur(16px);
}
.header-inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  letter-spacing: -0.04em;
  font-weight: 650;
  line-height: 1;
}
.brand-icon {
  width: 42px;
  height: 46px;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.brand-icon img {
  position: absolute;
  max-width: none;
  width: 90px;
  height: 90px;
  left: -24px;
  top: -21px;
}
.brand-wordmark {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: calc(1em + 8px + 0.6rem);
}
.brand-labs {
  display: block;
  letter-spacing: 0.44em;
  font-size: 0.6rem;
  color: var(--blue);
  margin-top: 8px;
}
.primary-nav {
  display: flex;
  gap: 30px;
  font-size: 0.875rem;
  color: #b6c2d3;
}
.primary-nav a:hover,
.text-link:hover {
  color: var(--cyan);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 22px;
}
.language-switch {
  display: flex;
  gap: 3px;
  font-family: ui-monospace, monospace;
  font-size: 0.8125rem;
}
.language-switch a {
  padding: 8px 9px;
  border: 1px solid transparent;
  border-radius: 5px;
  color: var(--muted);
}
.language-switch a[aria-current] {
  border-color: var(--line);
  background: #142136;
  color: var(--text);
}
.language-switch a:hover {
  color: var(--cyan);
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 13px 22px;
  border: 1px solid #8bbcff;
  border-radius: 7px;
  background: #a9cdff;
  color: #0b1a32;
  font-size: 0.875rem;
  font-weight: 650;
  line-height: 1.45;
  text-align: center;
  transition:
    background 0.2s,
    transform 0.2s;
}
.button:hover {
  background: #c8e1ff;
  transform: translateY(-2px);
}
.button-small {
  min-height: 42px;
  padding: 10px 18px;
  font-size: 0.8125rem;
}
.button-outline {
  background: transparent;
  color: var(--text);
  border-color: #466287;
}
.button-outline:hover {
  background: #172d4c;
}
.text-link {
  font-size: 0.875rem;
  text-decoration: underline;
  text-underline-offset: 6px;
  text-decoration-color: #4c6586;
  line-height: 1.65;
}
.hero {
  display: grid;
  grid-template-columns: 1fr 1.06fr;
  align-items: center;
  gap: 26px;
  min-height: 738px;
  padding-block: 56px 48px;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero h1 {
  font-size: clamp(3.1rem, 5.4vw, 5.2rem);
  line-height: 1.025;
  letter-spacing: -0.065em;
  margin-bottom: 30px;
}
.hero h1 span {
  color: var(--cyan);
}
.hero-description {
  font-size: 1.0625rem;
  max-width: 430px;
  margin-bottom: 32px;
  line-height: 1.75;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
}
.hero-note {
  font-size: 0.8125rem;
  color: #899cb6;
  margin: 30px 0 0;
}
.collaborations {
  padding-block: 54px 32px;
  background: linear-gradient(145deg, #101c2c66, transparent 65%);
}
.collaborations-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}
.collaborations-heading .eyebrow {
  margin-bottom: 14px;
}
.collaborations-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  margin-bottom: 0;
}
.carousel-controls {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}
.carousel-controls[hidden] {
  display: none;
}
.carousel-controls button {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid #3b526f;
  border-radius: 50%;
  color: var(--text);
  background: #111e30;
  font-size: 1.3rem;
}
.carousel-controls button:hover:not(:disabled) {
  background: #20364e;
  border-color: var(--cyan);
}
.carousel-controls button:disabled {
  opacity: 0.4;
  cursor: default;
}
.collaboration-scroller {
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: 6px;
  scrollbar-width: thin;
  scrollbar-color: #3f5e80 transparent;
  padding: 6px 6px 18px;
  margin-inline: -6px;
}
.collaboration-track {
  display: flex;
  gap: 20px;
  width: max-content;
  min-width: 100%;
  list-style: none;
  padding: 0;
  margin: 0;
}
.collaboration-track > li {
  flex: 1 0 420px;
  width: 420px;
  scroll-snap-align: start;
}
.collaboration-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 292px;
  border: 1px solid #354c69;
  border-radius: 12px;
  padding: 30px;
}
.partner-card {
  color: #202725;
  background: #f2f4f1;
  border-color: #e1e7e3;
  transition:
    border-color 0.2s,
    background 0.2s;
}
.partner-card:hover {
  background: #fff;
  border-color: var(--cyan);
}
.partner-card:focus-visible {
  outline-color: #198287;
  outline-offset: -5px;
}
.partner-category {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: ui-monospace, monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: #435d50;
}
.partner-category > span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #397a60;
}
.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  padding-block: 24px;
}
.partner-logo img {
  width: min(350px, 100%);
  max-height: 110px;
  object-fit: contain;
}
.partner-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid #ced8d0;
  line-height: 1.4;
}
.partner-footer strong {
  font-size: 0.9375rem;
  font-weight: 600;
}
.partner-footer > span {
  font-size: 0.8125rem;
  color: #4d6056;
}
.partner-footer span span {
  margin-left: 6px;
}
.invitation-card {
  overflow: hidden;
  background:
    radial-gradient(ellipse at right bottom, #16427066, transparent 75%),
    #0d1929;
}
.invitation-card .eyebrow {
  position: relative;
  z-index: 1;
  font-size: 0.6875rem;
  margin-bottom: 16px;
}
.invitation-card h3 {
  position: relative;
  z-index: 1;
  font-size: 1.8rem;
  margin-bottom: 14px;
}
.invitation-card > p:not(.eyebrow) {
  position: relative;
  z-index: 1;
  max-width: 350px;
  font-size: 0.875rem;
  margin-bottom: 18px;
}
.invitation-card .text-link {
  position: relative;
  z-index: 1;
  align-self: flex-start;
}
.invitation-orbit {
  position: absolute;
  width: 190px;
  height: 190px;
  right: -95px;
  bottom: -85px;
  border: 1px solid #548fc36b;
  border-radius: 50%;
  box-shadow:
    0 0 0 22px #548fc31a,
    0 0 0 44px #548fc30d;
}
.intro {
  background: #0b121e;
  padding-block: 48px;
}
.intro-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.3fr 1.3fr;
  align-items: center;
  gap: 48px;
}
.intro-grid .eyebrow {
  margin: 0;
}
.intro h2 {
  font-size: 1.6rem;
  margin: 0;
}
.intro p:last-child {
  font-size: 0.9375rem;
  margin: 0;
  line-height: 1.8;
}
.section-heading {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 90px;
  align-items: end;
  margin-bottom: 44px;
}
.section-heading h2 {
  margin-bottom: 0;
}
.section-heading > p {
  font-size: 1rem;
  line-height: 1.8;
  margin: 0 0 3px;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  position: relative;
  background: linear-gradient(145deg, #101c2b, #0b131f);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 34px 28px 28px;
  display: flex;
  flex-direction: column;
  transition:
    border-color 0.25s,
    transform 0.25s;
}
.service-card:hover {
  border-color: #446889;
  transform: translateY(-4px);
}
.service-number {
  position: absolute;
  right: 28px;
  top: 25px;
  color: #8298b3;
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
}
.service-symbol {
  height: 42px;
  width: 42px;
  position: relative;
  margin-bottom: 32px;
  border: 1px solid #598cca;
  border-radius: 10px;
}
.service-symbol:before,
.service-symbol:after {
  content: "";
  position: absolute;
  border: 1px solid var(--cyan);
}
.symbol-01:before {
  width: 17px;
  height: 17px;
  left: 11px;
  top: 11px;
  border-radius: 50%;
}
.symbol-01:after {
  width: 8px;
  height: 0;
  left: 25px;
  top: 29px;
  transform: rotate(45deg);
}
.symbol-02:before {
  width: 9px;
  height: 18px;
  top: 11px;
  left: 8px;
  border-right: 0;
  transform: skewY(-25deg);
}
.symbol-02:after {
  width: 9px;
  height: 18px;
  top: 11px;
  right: 8px;
  border-left: 0;
  transform: skewY(-25deg);
}
.symbol-03:before {
  height: 22px;
  width: 22px;
  border-radius: 50%;
  top: 9px;
  left: 9px;
}
.symbol-03:after {
  height: 22px;
  width: 9px;
  border-radius: 50%;
  top: 9px;
  left: 15px;
}
.service-card h3 {
  font-size: 1.375rem;
  letter-spacing: -0.035em;
  margin-bottom: 18px;
}
.service-card p {
  font-size: 0.9375rem;
  line-height: 1.8;
  flex: 1;
  margin-bottom: 26px;
}
.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  border-top: 1px solid #233044;
  padding-top: 22px;
}
.tags li {
  font-size: 0.75rem;
  line-height: 1.4;
  padding: 6px 8px;
  border-radius: 4px;
  background: #182437;
  color: #b6c8e0;
}
#products {
  padding-top: 18px;
}
.product-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  background:
    radial-gradient(ellipse at 100% 50%, #17376888, transparent 75%), #0e1828;
  border: 1px solid #2d4666;
  border-radius: 12px;
  padding: 52px;
}
.product-content .eyebrow {
  margin-bottom: 22px;
  font-size: 0.6875rem;
}
.product-name {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.6rem;
  letter-spacing: -0.04em;
  color: var(--text);
  font-weight: 650;
  margin-bottom: 30px;
}
.runtrail-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}
.product-card h3 {
  font-size: clamp(2rem, 3.2vw, 3rem);
  margin-bottom: 22px;
}
.product-content > p:not(.eyebrow, .product-name) {
  font-size: 0.9375rem;
  line-height: 1.8;
}
.product-features {
  list-style: none;
  margin: 26px 0 32px;
  padding: 0;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.product-features li {
  font-size: 0.8125rem;
  color: #bed0e7;
  border-left: 2px solid #66b8f2;
  padding-left: 8px;
}
.product-preview {
  border: 1px solid #3a5276;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 16px 50px #0004;
  transform: perspective(1400px) rotateY(-5deg);
}
.preview-top {
  display: flex;
  align-items: center;
  gap: 28px;
  background: #16233a;
  border-bottom: 1px solid #33435d;
  padding: 13px 18px;
  color: #a7b9d2;
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
}
.preview-dots {
  color: #7589a4;
  letter-spacing: 3px;
}
.preview-body {
  padding: 28px;
  background: #0c1524;
}
.preview-label {
  font-family: ui-monospace, monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: #90a9c8;
  margin-bottom: 13px;
}
.preview-body h4 {
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  margin-bottom: 30px;
}
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}
.timeline li {
  display: flex;
  gap: 16px;
  align-items: center;
  position: relative;
  font-size: 0.875rem;
  padding-bottom: 28px;
  color: #c2d2e7;
}
.timeline li:last-child {
  padding-bottom: 0;
}
.timeline-node {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #142b43;
  border: 1px solid #5096c0;
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
  color: var(--cyan);
}
.timeline-line {
  position: absolute;
  left: 13px;
  top: 28px;
  width: 1px;
  height: 28px;
  background: #365c7e;
}
.timeline li:last-child .timeline-line {
  display: none;
}
.preview-footer {
  font-size: 0.75rem;
  margin: 28px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: #97aac3;
}
.vision {
  padding-block: 104px;
  position: relative;
  overflow: hidden;
  background: #0b1422;
}
.vision-inner {
  position: relative;
  z-index: 1;
}
.vision h2 {
  font-size: clamp(2.25rem, 4.1vw, 4rem);
  max-width: 900px;
}
.vision-inner > p:not(.eyebrow) {
  max-width: 680px;
  font-size: 1.0625rem;
  line-height: 1.9;
}
.vision-inner .vision-statement {
  color: var(--cyan);
  margin-top: 28px;
  font-size: 1rem;
}
.vision-lines {
  position: absolute;
  width: 650px;
  height: 650px;
  right: -310px;
  top: 0;
  border: 1px solid #39679e;
  border-radius: 50%;
  box-shadow:
    0 0 0 40px #376a9633,
    0 0 0 80px #376a9622,
    0 0 0 120px #376a9611;
}
.faq-section {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
.faq-list details:first-child {
  border-top: 1px solid var(--line);
}
.faq-list summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 24px 0;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  line-height: 1.5;
  font-weight: 500;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary span {
  font-size: 1.5rem;
  color: var(--cyan);
  font-weight: 400;
  transition: transform 0.2s;
}
.faq-list details[open] summary span {
  transform: rotate(45deg);
}
.faq-list details p {
  font-size: 0.9375rem;
  line-height: 1.8;
  margin: 0 0 24px;
  padding-right: 32px;
}
.contact-section {
  padding-top: 20px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 100px;
}
.contact-copy > p:not(.eyebrow) {
  font-size: 1.0625rem;
  max-width: 340px;
  line-height: 1.8;
}
.contact-email {
  margin-top: 42px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.contact-email span {
  font-size: 0.875rem;
  color: var(--muted);
}
.contact-email a {
  font-size: 1.3rem;
  color: var(--cyan);
  letter-spacing: -0.02em;
}
#contact-form {
  padding: 32px;
  background: #0d1726;
  border: 1px solid #2a3d59;
  border-radius: 12px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.field {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
  min-width: 0;
}
.field label {
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 8px;
  line-height: 1.5;
}
.field label span {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.75rem;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 46px;
  background: #080f1a;
  color: var(--text);
  border: 1px solid #34465f;
  border-radius: 5px;
  padding: 11px 12px;
  font-size: 0.9375rem;
  line-height: 1.5;
  transition: border-color 0.2s;
}
.field input::placeholder,
.field textarea::placeholder {
  color: #8091a9;
  opacity: 1;
}
.field textarea {
  resize: vertical;
  min-height: 140px;
  max-height: 600px;
}
.field select {
  padding-right: 20px;
}
.field [aria-invalid="true"],
.consent-field [aria-invalid="true"] {
  border-color: #ff9292;
}
.field-error {
  color: #ffb4b4;
  font-size: 0.8125rem;
  line-height: 1.5;
}
.field-error:not(:empty) {
  margin-top: 6px;
}
.consent-field > label {
  display: flex;
  gap: 10px;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: #b4c3d6;
  cursor: pointer;
}
.consent-field input {
  flex-shrink: 0;
  height: 16px;
  width: 16px;
  accent-color: #74aaff;
  margin: 4px 0 0;
}
.privacy-note {
  font-size: 0.75rem;
  line-height: 1.7;
  margin: 14px 0 24px;
  color: #92a5bd;
}
.submit-button {
  width: 100%;
}
.submit-button:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
}
.form-status {
  font-size: 0.875rem;
  margin: 0;
  line-height: 1.7;
}
.form-status:not(:empty) {
  margin-top: 20px;
}
.is-success {
  color: #97eacb;
}
.is-error {
  color: #ffb4b4;
}
.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.site-footer {
  padding: 42px 0 24px;
  background: #070c14;
}
.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
}
.footer-brand {
  font-size: 1.5rem;
  letter-spacing: -0.05em;
  font-weight: 600;
}
.footer-brand span {
  color: var(--cyan);
}
.footer-main p {
  font-size: 0.875rem;
  margin: 10px 0 0;
}
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 40px;
}
.footer-bottom p {
  font-size: 0.75rem;
  margin: 0;
  color: #90a0b6;
}
.footer-bottom p:last-child {
  max-width: 450px;
  text-align: right;
}
@media (min-width: 1500px) {
  .hero {
    min-height: 800px;
  }
}
@media (max-width: 1100px) {
  .container {
    width: calc(100% - 64px);
  }
  .primary-nav {
    gap: 18px;
  }
  .hero {
    min-height: 680px;
    grid-template-columns: 1fr 1.04fr;
    gap: 16px;
  }
  .hero h1 {
    font-size: clamp(2.75rem, 5vw, 3.5rem);
  }
  .hero-actions {
    gap: 16px;
  }
  .hero-description {
    max-width: 390px;
  }
  .intro-grid {
    gap: 30px;
    grid-template-columns: 0.8fr 1.2fr 1.4fr;
  }
  .section-heading {
    gap: 48px;
  }
  .service-card {
    padding: 28px 22px;
  }
  .product-card {
    gap: 36px;
    padding: 36px;
  }
  .contact-section {
    gap: 50px;
  }
  .contact-section h2 {
    font-size: 2.75rem;
  }
}
@media (max-width: 800px) {
  .container {
    width: calc(100% - 40px);
  }
  .primary-nav {
    display: none;
  }
  .header-inner {
    min-height: 76px;
    gap: 12px;
  }
  .header-actions {
    gap: 12px;
  }
  .brand {
    font-size: 1.25rem;
  }
  .section {
    padding-block: 72px;
  }
  .collaborations {
    padding-block: 40px 28px;
  }
  .collaboration-track > li {
    flex-basis: min(340px, calc(100vw - 64px));
    width: min(340px, calc(100vw - 64px));
  }
  .collaboration-card {
    padding: 24px;
  }
  .invitation-card h3 {
    font-size: 1.65rem;
  }
  .partner-footer {
    flex-wrap: wrap;
    gap: 8px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-top: 44px;
    min-height: 0;
  }
  .hero h1 {
    font-size: clamp(2.6rem, 8vw, 4.5rem);
    max-width: 620px;
  }
  .hero-description {
    max-width: 520px;
  }
  .hero-note {
    margin-top: 24px;
  }
  .intro-grid {
    grid-template-columns: 1fr 1.3fr;
    gap: 24px;
  }
  .intro-grid .eyebrow {
    grid-column: 1/-1;
  }
  .section-heading {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 32px;
  }
  .section-heading > p {
    max-width: 600px;
  }
  .service-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .service-card {
    padding: 28px;
  }
  .service-symbol {
    margin-bottom: 24px;
  }
  .service-card p {
    max-width: 650px;
  }
  .tags {
    padding-top: 18px;
  }
  .product-card {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 32px;
  }
  .product-content > p {
    max-width: 570px;
  }
  .product-preview {
    width: min(480px, 100%);
    justify-self: center;
    transform: none;
  }
  .vision {
    padding-block: 72px;
  }
  .vision-lines {
    opacity: 0.4;
    right: -480px;
  }
  .faq-section {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .faq-section h2 {
    margin-bottom: 0;
  }
  .contact-section {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-top: 8px;
  }
  .contact-copy > p:not(.eyebrow) {
    max-width: 500px;
  }
  .contact-email {
    margin-top: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 14px;
  }
  .footer-bottom p:last-child {
    text-align: left;
    max-width: none;
  }
}
@media (max-width: 440px) {
  .container {
    width: calc(100% - 32px);
  }
  .header-actions .button {
    display: none;
  }
  .header-inner {
    min-height: 70px;
  }
  .hero {
    padding-top: 40px;
    padding-bottom: 32px;
    gap: 26px;
  }
  .hero h1 {
    font-size: clamp(2rem, 9.5vw, 2.6rem);
    line-height: 1.05;
  }
  .hero .eyebrow {
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
    max-width: 290px;
  }
  .hero-description {
    font-size: 1rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 22px;
  }
  .hero-note {
    font-size: 0.75rem;
    max-width: 290px;
  }
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .intro-grid h2 {
    font-size: 1.6rem;
  }
  .section {
    padding-block: 56px;
  }
  h2 {
    font-size: 2.15rem;
  }
  .section-heading {
    gap: 20px;
  }
  .product-card {
    padding: 24px;
  }
  .product-card h3 {
    font-size: 2.2rem;
  }
  .product-features {
    gap: 10px;
  }
  .preview-body {
    padding: 22px;
  }
  .preview-top {
    gap: 15px;
  }
  .vision {
    padding-block: 60px;
  }
  .vision h2 {
    font-size: 2.2rem;
  }
  .vision-inner > p:not(.eyebrow) {
    font-size: 1rem;
  }
  .contact-section {
    padding-top: 0;
  }
  .contact-section h2 {
    font-size: 2.3rem;
  }
  #contact-form {
    padding: 22px;
  }
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .footer-main {
    align-items: flex-start;
  }
  .footer-main .text-link {
    white-space: nowrap;
    font-size: 0.8125rem;
  }
  .footer-main p {
    max-width: 215px;
  }
  .footer-bottom {
    padding-top: 18px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
  .button:hover,
  .service-card:hover {
    transform: none;
  }
}

.topic-hub {
  border-bottom: 1px solid var(--line);
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.topic-card {
  position: relative;
  padding: 30px 52px 30px 30px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.topic-card h3 {
  font-size: 1.25rem;
  line-height: 1.35;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.topic-card a:hover,
.breadcrumbs a:hover,
.topic-toc a:hover {
  color: var(--cyan);
}
.topic-card p {
  font-size: 0.9375rem;
  margin-bottom: 0;
}
.topic-card-arrow {
  position: absolute;
  top: 30px;
  right: 24px;
  color: var(--cyan);
}
.topic-hero {
  padding-block: 32px 72px;
}
.breadcrumbs {
  margin-bottom: 60px;
  font-size: 0.8125rem;
  color: var(--muted);
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.breadcrumbs li + li::before {
  content: "/";
  padding-right: 10px;
}
.topic-hero h1 {
  font-size: clamp(2.25rem, 4.8vw, 4.6rem);
  max-width: 1000px;
  margin-bottom: 28px;
}
.topic-summary {
  max-width: 780px;
  font-size: 1.125rem;
  margin-bottom: 32px;
}
.topic-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 2fr);
  align-items: start;
  gap: 80px;
}
.topic-toc {
  position: sticky;
  top: 120px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  font-size: 0.875rem;
}
.topic-toc > p {
  color: var(--cyan);
}
.topic-toc ol {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}
.topic-toc li {
  margin-bottom: 16px;
  padding-left: 6px;
}
.topic-body section {
  padding-bottom: 40px;
}
.topic-body h2 {
  font-size: clamp(1.7rem, 2.6vw, 2.5rem);
  line-height: 1.2;
}
.topic-body p {
  line-height: 1.85;
}
.topic-references {
  padding-left: 20px;
}
.topic-references a {
  overflow-wrap: anywhere;
}
.topic-cta {
  border-top: 1px solid var(--line);
  padding-top: 60px;
}
.topic-cta p {
  max-width: 720px;
  margin-bottom: 28px;
}
@media (max-width: 900px) {
  .topic-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .topic-toc {
    position: static;
  }
}
@media (max-width: 600px) {
  .topic-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .topic-card {
    padding: 24px 42px 24px 24px;
  }
  .topic-card-arrow {
    top: 24px;
    right: 18px;
  }
  .topic-hero {
    padding-bottom: 48px;
  }
  .breadcrumbs {
    margin-bottom: 36px;
  }
  .topic-summary {
    font-size: 1rem;
  }
}