:root {
  color-scheme: light dark;
  --ink: #07162e;
  --muted: #40516e;
  --surface: #f7faff;
  --surface-strong: #ffffff;
  --line: #c7d7ef;
  --blue: #075fd8;
  --blue-strong: #0048ad;
  --cyan: #00a6c8;
  --navy: #061a3a;
  --focus: #ffbf47;
  --on-dark: #f5f9ff;
  --header-surface: rgba(247, 250, 255, 0.96);
  --header-ink: var(--navy);
  --note-surface: #eaf3ff;
  --max: 74rem;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

html[data-text-scale="125"] {
  font-size: 125%;
}
html[data-text-scale="150"] {
  font-size: 150%;
}
html[data-text-scale="175"] {
  font-size: 175%;
}
html[data-text-scale="200"] {
  font-size: 200%;
}

/* Açık, koyu ve yüksek kontrast düzenleri aynı anlamlı renk rollerini paylaşır. */
html[data-theme="dark"] {
  color-scheme: dark;
  --ink: #f5f9ff;
  --muted: #c2d2ea;
  --surface: #07162e;
  --surface-strong: #0d2447;
  --line: #61799c;
  --blue: #66a5ff;
  --blue-strong: #9ac7ff;
  --cyan: #59d9ee;
  --navy: #020b1b;
  --header-surface: rgba(7, 22, 46, 0.97);
  --header-ink: #f5f9ff;
  --note-surface: #102c54;
}
html[data-theme="light"] {
  color-scheme: light;
}
html[data-theme="contrast"] {
  color-scheme: dark;
  --ink: #ffffff;
  --muted: #ffffff;
  --surface: #000000;
  --surface-strong: #000000;
  --line: #ffffff;
  --blue: #00ffff;
  --blue-strong: #ffff00;
  --cyan: #00ffff;
  --navy: #000000;
  --focus: #ffff00;
  --on-dark: #ffffff;
  --header-surface: #000000;
  --header-ink: #ffffff;
  --note-surface: #000000;
}
@media (prefers-color-scheme: dark) {
  html:not([data-theme]),
  html[data-theme="system"] {
    color-scheme: dark;
    --ink: #f5f9ff;
    --muted: #c2d2ea;
    --surface: #07162e;
    --surface-strong: #0d2447;
    --line: #61799c;
    --blue: #66a5ff;
    --blue-strong: #9ac7ff;
    --cyan: #59d9ee;
    --navy: #020b1b;
    --header-surface: rgba(7, 22, 46, 0.97);
    --header-ink: #f5f9ff;
    --note-surface: #102c54;
  }
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  line-height: 1.65;
  overflow-wrap: break-word;
}
a {
  color: var(--blue-strong);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 0.1em;
}
a:hover {
  text-decoration-thickness: 0.16em;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 0.22rem solid var(--focus);
  outline-offset: 0.22rem;
  border-radius: 0.2rem;
}
img,
svg {
  max-width: 100%;
}
.skip-link {
  position: absolute;
  left: 1rem;
  top: -6rem;
  z-index: 100;
  padding: 0.8rem 1rem;
  background: var(--focus);
  color: #111;
  font-weight: 800;
}
.skip-link:focus {
  top: 1rem;
}
.wrap {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}
.site-header {
  background: var(--header-surface);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
}
.header-inner {
  min-height: 4.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--header-ink);
  font-weight: 850;
  font-size: 1.15rem;
  text-decoration: none;
  white-space: nowrap;
  overflow-wrap: anywhere;
}
.brand-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 0.32rem rgba(7, 95, 216, 0.14);
  position: relative;
}
.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: white;
  border-radius: 999px;
  left: 0.48rem;
  right: 0.48rem;
}
.brand-mark::before {
  height: 0.2rem;
  top: 0.65rem;
}
.brand-mark::after {
  height: 0.2rem;
  bottom: 0.65rem;
}
.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.2rem 1.1rem;
  padding: 0;
  margin: 0;
  list-style: none;
}
.nav-list a {
  display: inline-block;
  padding: 0.7rem 0.15rem;
  color: var(--header-ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 0.18rem solid transparent;
}
.nav-list a:hover,
.nav-list a[aria-current="page"] {
  border-bottom-color: var(--blue);
}
.lang-link {
  border: 1px solid var(--line) !important;
  border-radius: 999px;
  padding-inline: 0.75rem !important;
}

/* Görünüm paneli gezinmede dil seçiminden hemen önce yer alır. */
.appearance-item {
  position: relative;
}
.appearance-menu > summary {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.7rem;
  color: var(--header-ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}
.appearance-summary-label {
  min-width: 0;
}
.appearance-menu > summary::-webkit-details-marker {
  display: none;
}
.appearance-menu > summary::after {
  content: "+";
  font-size: 1.15em;
  line-height: 1;
}
.appearance-menu[open] > summary::after {
  content: "−";
}
.appearance-menu > summary:hover,
.appearance-menu[open] > summary {
  border-color: var(--blue);
  background: var(--surface-strong);
}
.appearance-panel {
  position: absolute;
  inset-block-start: calc(100% + 0.55rem);
  inset-inline-end: 0;
  z-index: 40;
  width: min(23rem, calc(100vw - 2rem));
  max-height: calc(100vh - 6rem);
  overflow: auto;
  padding: 1rem;
  color: var(--ink);
  background: var(--surface-strong);
  border: 2px solid var(--line);
  border-radius: 1rem;
  box-shadow: 0 1rem 2.5rem rgba(2, 11, 27, 0.24);
}
.appearance-panel fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}
.appearance-panel fieldset + fieldset {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.appearance-panel legend {
  padding: 0;
  font-weight: 850;
}
.appearance-options {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.55rem;
}
.appearance-size-options {
  grid-template-columns: repeat(auto-fit, minmax(4rem, 1fr));
}
.appearance-theme-options {
  grid-template-columns: 1fr;
}
.appearance-option {
  min-height: 2.75rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  cursor: pointer;
  font-weight: 700;
}
.appearance-option:has(input:checked) {
  border-color: var(--blue);
  box-shadow: inset 0 0 0 1px var(--blue);
  background: color-mix(in srgb, var(--blue) 12%, var(--surface-strong));
}
.appearance-option input {
  width: 1.15rem;
  height: 1.15rem;
  margin: 0;
  accent-color: var(--blue);
}
.appearance-reset {
  min-height: 2.75rem;
  width: 100%;
  margin-top: 1rem;
  padding: 0.55rem 0.8rem;
  color: var(--surface-strong);
  background: var(--blue-strong);
  border: 2px solid var(--blue-strong);
  border-radius: 0.7rem;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
  overflow-wrap: anywhere;
}
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.hero {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: var(--on-dark);
  min-height: min(46rem, calc(100svh - 4.75rem));
  display: grid;
  align-items: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10%;
  background:
    radial-gradient(
      circle at 72% 45%,
      rgba(0, 166, 200, 0.38),
      transparent 25%
    ),
    radial-gradient(circle at 78% 48%, rgba(7, 95, 216, 0.42), transparent 46%);
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(19rem, 0.95fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: center;
  padding-block: clamp(4rem, 10vw, 8rem);
}
.eyebrow {
  color: #84ddff;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-size: 0.83rem;
}
h1,
h2,
h3 {
  line-height: 1.12;
  text-wrap: balance;
  overflow-wrap: anywhere;
}
h1 {
  font-size: clamp(2.7rem, 7vw, 5.8rem);
  letter-spacing: -0.055em;
  margin: 0.35rem 0 1.4rem;
  max-width: 11ch;
}
.hero p {
  color: #d7e7ff;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  max-width: 38rem;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}
.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.1rem;
  border-radius: 0.45rem;
  font-weight: 800;
  text-decoration: none;
  background: var(--focus);
  color: #111;
  border: 0.14rem solid var(--focus);
}
.button.secondary {
  background: transparent;
  color: white;
  border-color: #86baff;
}
.signal {
  min-height: 28rem;
  display: grid;
  place-items: center;
  position: relative;
}
.orbit {
  width: min(25rem, 78vw);
  aspect-ratio: 1;
  border: 1px solid rgba(180, 219, 255, 0.42);
  border-radius: 50%;
  display: grid;
  place-items: center;
  animation: breathe 5s ease-in-out infinite;
}
.orbit::before,
.orbit::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(132, 221, 255, 0.35);
  border-radius: 50%;
}
.orbit::before {
  inset: 17%;
}
.orbit::after {
  inset: 31%;
}
.wave {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  z-index: 2;
}
.wave span {
  display: block;
  width: 0.42rem;
  border-radius: 999px;
  background: linear-gradient(#8ce7ff, #fff);
  height: 3rem;
  animation: wave 1.7s ease-in-out infinite;
}
.wave span:nth-child(2),
.wave span:nth-child(6) {
  height: 6rem;
  animation-delay: -0.4s;
}
.wave span:nth-child(3),
.wave span:nth-child(5) {
  height: 9rem;
  animation-delay: -0.8s;
}
.wave span:nth-child(4) {
  height: 12rem;
  animation-delay: -1.2s;
}
@keyframes wave {
  50% {
    transform: scaleY(0.55);
    opacity: 0.65;
  }
}
@keyframes breathe {
  50% {
    transform: scale(0.96);
  }
}

main section {
  padding-block: clamp(4rem, 8vw, 7rem);
}
.section-kicker {
  color: var(--blue-strong);
  font-weight: 850;
  margin: 0 0 0.4rem;
}
h2 {
  font-size: clamp(2rem, 4.5vw, 3.65rem);
  letter-spacing: -0.035em;
  margin: 0 0 1.2rem;
  max-width: 18ch;
}
.lead {
  max-width: 48rem;
  color: var(--muted);
  font-size: 1.15rem;
}
.feature-list {
  list-style: none;
  padding: 0;
  margin: 3rem 0 0;
  border-top: 1px solid var(--line);
}
.feature-list li {
  display: grid;
  grid-template-columns: minmax(12rem, 0.55fr) minmax(0, 1fr);
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
}
.feature-list h3 {
  font-size: 1.35rem;
  margin: 0;
}
.feature-list p {
  margin: 0;
  color: var(--muted);
}
.interface-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin-top: 3rem;
  align-items: start;
}
.interface-shot {
  margin: 0;
}
.interface-shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 1.1rem;
  background: #000;
  box-shadow: 0 1.1rem 2.8rem rgba(6, 26, 58, 0.16);
}
.interface-shot figcaption {
  margin-top: 1rem;
}
.interface-shot figcaption strong {
  display: block;
  color: var(--ink);
  font-size: 1.08rem;
}
.image-description {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
}
.guide-figure {
  max-width: 27rem;
  margin: 2rem 0 3rem;
}
.guide-figure img {
  max-height: 42rem;
  width: auto;
  margin-inline: auto;
}
.dark-section {
  background: var(--navy);
  color: var(--on-dark);
}
.dark-section .section-kicker {
  color: #84ddff;
}
.dark-section .lead,
.dark-section p {
  color: #cfe1fa;
}
.steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}
.step {
  counter-increment: step;
  border-top: 0.25rem solid var(--cyan);
  padding-top: 1.2rem;
}
.step::before {
  content: "0" counter(step);
  display: block;
  color: #84ddff;
  font-weight: 850;
  margin-bottom: 1.3rem;
}
.step h3 {
  margin: 0 0 0.6rem;
}
.cta {
  background: linear-gradient(120deg, #0868e5, #0048ad);
  color: white;
}
.cta .section-kicker {
  color: #e7f5ff;
}
.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: end;
}
.cta h2 {
  max-width: 15ch;
}
.page-hero {
  padding-block: clamp(4rem, 8vw, 7rem);
  background: linear-gradient(135deg, var(--navy), #07377a);
  color: white;
}
.page-hero h1 {
  max-width: 14ch;
  font-size: clamp(2.6rem, 6vw, 5rem);
}
.page-hero p {
  max-width: 48rem;
  color: #d7e7ff;
  font-size: 1.15rem;
}
.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}
.prose {
  width: 100%;
  max-width: 64rem;
  margin-inline: auto;
}
.prose h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  max-width: none;
  margin-top: 3.5rem;
}
.prose h2:first-child {
  margin-top: 0;
}
.prose h3 {
  font-size: 1.25rem;
  margin-top: 2rem;
}
.prose li + li {
  margin-top: 0.55rem;
}
.prose h4 {
  font-size: 1.05rem;
  margin: 1.6rem 0 0.45rem;
}
.prose :target {
  scroll-margin-top: 6.5rem;
}
.story-shell {
  padding-block: clamp(3.5rem, 7vw, 6.5rem);
}
.story-prose {
  margin-inline: auto;
}
.story-lede {
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  line-height: 1.55;
  color: var(--navy-soft);
}
.story-quote {
  margin: clamp(2.5rem, 6vw, 4.5rem) 0;
  padding: 1.5rem 0 1.5rem clamp(1.25rem, 4vw, 2.5rem);
  border-left: 0.35rem solid var(--blue);
  color: var(--navy);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 850;
  line-height: 1.35;
}
.story-signature {
  margin-top: 3rem;
  color: var(--blue-strong);
  font-weight: 850;
}
.guide-accordion {
  border-top: 1px solid var(--line);
  scroll-margin-top: 6.5rem;
}
.guide-accordion:last-child {
  border-bottom: 1px solid var(--line);
}
.guide-accordion > summary {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr) 2rem;
  gap: 1rem;
  align-items: center;
  min-height: 5.75rem;
  padding: 0.9rem 0.25rem;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition:
    color 0.2s ease,
    background-color 0.2s ease;
}
.guide-accordion > summary::-webkit-details-marker {
  display: none;
}
.guide-accordion > summary::marker {
  content: "";
}
.guide-accordion > summary:hover {
  color: var(--blue-strong);
}
.guide-accordion[open] > summary {
  color: var(--blue-strong);
  background: linear-gradient(90deg, rgba(7, 95, 216, 0.08), transparent 72%);
}
.accordion-icon {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface-strong);
  color: var(--blue-strong);
  font-size: 1.35rem;
  font-weight: 850;
  box-shadow: 0 0.4rem 1.1rem rgba(6, 26, 58, 0.08);
}
.guide-accordion[open] .accordion-icon {
  background: var(--blue);
  border-color: var(--blue);
  color: white;
}
.accordion-heading {
  display: block;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 850;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.accordion-number {
  display: block;
  margin-bottom: 0.22rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.12em;
}
.accordion-toggle {
  position: relative;
  width: 1.5rem;
  height: 1.5rem;
  transition: transform 0.25s ease;
}
.accordion-toggle::before,
.accordion-toggle::after {
  content: "";
  position: absolute;
  left: 0.2rem;
  right: 0.2rem;
  top: calc(50% - 1px);
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}
.accordion-toggle::after {
  transform: rotate(90deg);
}
.guide-accordion[open] .accordion-toggle {
  transform: rotate(45deg);
}
.accordion-content {
  padding: 0.5rem 2rem 3rem 4.5rem;
  animation: accordion-reveal 0.28s ease both;
}
.accordion-content > :first-child {
  margin-top: 0;
}
.sub-accordion {
  border-top: 1px solid var(--line);
}
.sub-accordion:last-child {
  border-bottom: 1px solid var(--line);
}
.sub-accordion > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 1.5rem;
  gap: 1rem;
  align-items: center;
  min-height: 3.75rem;
  padding: 0.75rem 0.15rem;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition:
    color 0.2s ease,
    padding-left 0.2s ease;
}
.sub-accordion > summary::-webkit-details-marker {
  display: none;
}
.sub-accordion > summary::marker {
  content: "";
}
.sub-accordion > summary:hover,
.sub-accordion[open] > summary {
  color: var(--blue-strong);
  padding-left: 0.45rem;
}
.sub-heading {
  font-size: 1.05rem;
  font-weight: 820;
  line-height: 1.35;
}
.sub-toggle {
  position: relative;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--blue-strong);
  transition: transform 0.22s ease;
}
.sub-toggle::before,
.sub-toggle::after {
  content: "";
  position: absolute;
  left: 0.15rem;
  right: 0.15rem;
  top: calc(50% - 1px);
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}
.sub-toggle::after {
  transform: rotate(90deg);
}
.sub-accordion[open] .sub-toggle {
  transform: rotate(45deg);
}
.sub-content {
  padding: 0 0.5rem 1.75rem;
}
.sub-content > :first-child {
  margin-top: 0;
}
@keyframes accordion-reveal {
  from {
    transform: translateY(-0.35rem);
  }
  to {
    transform: translateY(0);
  }
}
.chapter-intro {
  color: var(--muted);
  font-size: 1.08rem;
}
.reference-list {
  margin: 1.25rem 0 2rem;
  border-top: 1px solid var(--line);
}
.reference-list > div {
  display: grid;
  grid-template-columns: minmax(11rem, 0.42fr) minmax(0, 1fr);
  gap: 1rem 2rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.reference-list dt {
  font-weight: 800;
  color: var(--ink);
}
.reference-list dd {
  margin: 0;
  color: var(--muted);
}
.reference-list dd p {
  margin: 0;
}
.reference-list dd p + p {
  margin-top: 0.45rem;
}
.route {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--blue-strong);
  font-weight: 750;
}
.status {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.08rem 0.45rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}
.verification-note {
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  background: var(--surface-strong);
  padding: 1rem 1.2rem;
  margin: 1.5rem 0 2rem;
}
.verification-note p {
  margin: 0.35rem 0;
}
.subtoc {
  columns: 2;
  column-gap: 2rem;
  padding-left: 1.25rem;
}
.subtoc li {
  break-inside: avoid;
}
.note {
  border-left: 0.3rem solid var(--blue);
  background: var(--note-surface);
  padding: 1rem 1.2rem;
  margin-block: 1.5rem;
}
.path {
  font-weight: 750;
  color: var(--blue-strong);
}
.site-footer {
  background: #03132d;
  color: #cbdcf5;
  padding-block: 3rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(16rem, 0.75fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}
.site-footer a {
  color: #b7dcff;
}
.footer-links {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-owner {
  max-width: 43rem;
}
.footer-owner > strong {
  color: #ffffff;
  font-size: 1.25rem;
}
.footer-owner p {
  margin-block: 0.55rem;
}
.footer-signature {
  color: #ffffff;
  font-weight: 750;
}
.footer-copyright {
  color: #aebfda;
  font-size: 0.85rem;
}
.footer-nav-label {
  margin: 0 0 0.65rem;
  color: #ffffff;
  font-weight: 800;
}
.social-share {
  margin-top: 1.35rem;
}
.social-share-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.social-share-links a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid #58739b;
  border-radius: 999px;
  text-decoration: none;
}
.social-share-links a:hover {
  color: #ffffff;
  border-color: #b7dcff;
  background: #0b2a55;
}
.support-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(20rem, 1.1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
  padding-block: clamp(3.5rem, 7vw, 6.5rem);
}
.support-copy h2:first-child {
  margin-top: 0;
}
.translation-files {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-block: 1.5rem;
}
.translation-files a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  border: 1px solid var(--blue);
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
}
.translation-files a:focus-visible,
.translation-contents > summary:focus-visible {
  outline-color: var(--blue-strong);
}
.translation-contents {
  margin-block: 1.5rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}
.translation-contents > summary {
  min-height: 2.75rem;
  cursor: pointer;
  font-weight: 850;
}
.translation-contents > ul {
  margin-top: 1rem;
}
.support-form {
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.support-legal {
  grid-column: 1 / -1;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.support-legal .small {
  color: var(--ink);
}

.key-difference {
  margin: 1.5rem 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  border-inline-start: 0.35rem solid var(--accent);
  border-radius: var(--radius-md);
  background: var(--surface);
}
.support-form fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}
.support-form legend {
  margin-bottom: 1rem;
  font-size: 1.35rem;
  font-weight: 850;
}
.form-field {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
  font-weight: 750;
}
.form-field input,
.form-field select,
.form-field textarea {
  box-sizing: border-box;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.7rem 0.8rem;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: var(--surface-strong);
  font: inherit;
}
.form-field textarea {
  min-height: 9rem;
  resize: vertical;
}
.field-hint {
  margin: -0.15rem 0 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.support-form .button {
  border: 0;
  cursor: pointer;
}
html[data-theme="contrast"] .support-form,
html[data-theme="contrast"] .form-field input,
html[data-theme="contrast"] .form-field select,
html[data-theme="contrast"] .form-field textarea {
  border-color: #ffffff;
  box-shadow: none;
}
.footer-links a {
  display: inline-block;
  padding-block: 0.3rem;
}
.small {
  font-size: 0.92rem;
  color: #aebfda;
}

@media (max-width: 50rem) {
  .support-layout {
    grid-template-columns: minmax(0, 1fr);
  }
  .site-header {
    position: relative;
  }
  .header-inner,
  .footer-grid {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
  }
  .header-inner {
    padding-block: 0.85rem;
  }
  .brand {
    max-width: 100%;
    white-space: normal;
  }
  .nav-list {
    width: 100%;
    min-width: 0;
    justify-content: flex-start;
  }
  .header-inner nav {
    width: 100%;
    min-width: 0;
  }
  .nav-list > li {
    min-width: 0;
    max-width: 100%;
  }
  .appearance-menu > summary {
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    justify-content: space-between;
  }
  .appearance-summary-label {
    overflow-wrap: anywhere;
  }
  .hero-grid,
  .content-grid,
  .cta-inner {
    grid-template-columns: 1fr;
  }
  .hero-grid > *,
  .content-grid > *,
  .cta-inner > *,
  .feature-list li > * {
    min-width: 0;
  }
  .orbit,
  .interface-gallery,
  .interface-shot {
    max-width: 100%;
  }
  .button,
  .nav-list a,
  .appearance-option {
    max-width: 100%;
    overflow-wrap: anywhere;
  }
  .hero {
    min-height: auto;
  }
  .signal {
    min-height: 20rem;
  }
  .steps,
  .interface-gallery {
    grid-template-columns: 1fr;
  }
  .interface-gallery {
    max-width: 28rem;
  }
}
@media (max-width: 36rem) {
  .feature-list li {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }
  .reference-list > div {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
  .subtoc {
    columns: 1;
  }
  .guide-accordion > summary {
    grid-template-columns: 2.75rem minmax(0, 1fr) 1.5rem;
    gap: 0.75rem;
    min-height: 5rem;
  }
  .accordion-icon {
    width: 2.75rem;
    height: 2.75rem;
  }
  .accordion-content {
    padding: 0.5rem 0 2.5rem;
  }
  .sub-accordion > summary {
    min-height: 3.5rem;
  }
  .sub-content {
    padding-inline: 0;
  }
  .nav-list {
    gap: 0 0.75rem;
  }
  h1 {
    letter-spacing: -0.04em;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}
@media (prefers-contrast: more) {
  :root {
    --line: #536987;
    --muted: #273751;
  }
  .button {
    border-width: 0.2rem;
  }
}
@media (forced-colors: active) {
  .brand-mark,
  .wave span {
    forced-color-adjust: none;
  }
  .button {
    border: 2px solid ButtonText;
  }
}

html[data-theme="contrast"] .hero::before {
  display: none;
}
html[data-theme="contrast"] .cta,
html[data-theme="contrast"] .page-hero {
  background: #000000;
  border-block: 2px solid #ffffff;
}
html[data-theme="dark"] .story-lede,
html[data-theme="dark"] .story-quote,
html[data-theme="contrast"] .story-lede,
html[data-theme="contrast"] .story-quote {
  color: var(--ink);
}
html[data-theme="contrast"] .button.secondary {
  color: #ffffff;
  border-color: #ffffff;
}