* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background: #07101f;
  color: #f7f9fc;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  min-height: 44px;
  padding: 0.65rem 1rem;
  background: #ffffff;
  color: #07101f;
  font-weight: 700;
  transform: translateY(-160%);
}

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

:focus-visible {
  outline: 3px solid #66e4ff;
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid #2a3d58;
  background: rgba(7, 16, 31, 0.96);
}

.nav-shell {
  display: flex;
  width: min(1180px, calc(100% - 2rem));
  min-height: 76px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 0.75rem;
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 48px;
  border-radius: 11px;
}

nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

nav a {
  display: inline-flex;
  min-height: 44px;
  padding: 0.65rem 0.8rem;
  align-items: center;
  color: #c7d3e7;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

nav a:hover {
  color: #ffffff;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.hero {
  display: grid;
  width: min(1180px, calc(100% - 2rem));
  min-height: 680px;
  margin: 0 auto;
  padding: 5rem 0;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 7rem);
}

.hero-copy {
  max-width: 720px;
}

.signal-label {
  margin: 0 0 0.8rem;
  color: #61ddff;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.08;
}

h1 {
  max-width: 850px;
  margin-bottom: 1.5rem;
  font-size: clamp(3rem, 7.5vw, 6rem);
  letter-spacing: -0.04em;
}

h2 {
  margin-bottom: 1.2rem;
  font-size: clamp(2.1rem, 4.5vw, 4.25rem);
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 0.7rem;
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  letter-spacing: -0.02em;
}

p {
  margin-top: 0;
}

.hero-summary {
  max-width: 62ch;
  margin-bottom: 2rem;
  color: #c7d3e7;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.status-block {
  display: inline-flex;
  min-height: 50px;
  margin: 0;
  padding: 0.75rem 1rem;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid #47718a;
  background: #10233a;
  color: #ffffff;
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
}

.status-dot {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #61ddff;
  box-shadow: 0 0 0 5px rgba(97, 221, 255, 0.12);
}

.availability-note {
  max-width: 58ch;
  margin: 0.9rem 0 0;
  color: #9eb0ca;
  font-size: 0.9rem;
}

.hero-mark {
  position: relative;
}

.hero-mark::before {
  position: absolute;
  inset: 10% 5%;
  z-index: -1;
  border-radius: 50%;
  background: #0e7ea0;
  content: "";
  filter: blur(80px);
  opacity: 0.28;
}

.hero-mark img {
  width: min(100%, 460px);
  margin: 0 auto;
  border-radius: 22%;
  box-shadow: 18px 24px 54px rgba(0, 0, 0, 0.48);
}

.demo-section {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto 8rem;
}

.demo-label {
  display: grid;
  padding: 1.5rem;
  gap: 2rem;
  border: 2px solid #ffbf47;
  background: #241b0c;
  color: #fff4d7;
}

.demo-label .signal-label {
  color: #ffd785;
}

.demo-label h2 {
  margin-bottom: 0;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
}

.demo-label p:last-child {
  max-width: 70ch;
  margin: 0;
}

.demo-figure {
  margin: 0;
}

.demo-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid #2a3d58;
  background: #02070d;
}

.demo-video iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.demo-figure figcaption {
  padding: 0.9rem 1rem;
  border: 1px solid #2a3d58;
  border-top: 0;
  background: #0b1729;
  color: #c7d3e7;
  font-size: 0.9rem;
}

.feature-section,
.screens-section,
.requirements-section {
  padding: 7rem max(1rem, calc((100% - 1180px) / 2));
}

.feature-section {
  background: #f0f5fa;
  color: #07101f;
}

.section-heading {
  max-width: 880px;
  margin-bottom: 4rem;
}

.section-heading > p:last-child {
  max-width: 70ch;
  color: #3b4d63;
  font-size: 1.1rem;
}

.feature-section .signal-label,
.requirements-section .signal-label {
  color: #006f8f;
}

.feature-ledger {
  border-top: 2px solid #142943;
}

.feature-row {
  display: grid;
  padding: 2.3rem 0;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 2rem;
  border-bottom: 1px solid #aab9ca;
}

.feature-index {
  padding-top: 0.3rem;
  color: #00799d;
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.15em;
}

.feature-row div:last-child {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(300px, 1.2fr);
  gap: 2rem;
}

.feature-row h3,
.feature-row p {
  margin-bottom: 0;
}

.feature-row p {
  max-width: 68ch;
  color: #34475d;
}

.screens-section {
  overflow: hidden;
  background: #0b1729;
}

.split-heading {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(280px, 1fr) minmax(280px, 0.85fr);
  align-items: end;
  gap: 3rem;
}

.split-heading h2 {
  margin-bottom: 0;
}

.split-heading > p {
  margin-bottom: 0;
  color: #b6c6dc;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(180px, 1fr));
  gap: 1.1rem;
}

.screenshot-grid figure {
  margin: 0;
}

.screenshot-grid img {
  width: 100%;
  border: 1px solid #3c536f;
  background: #07101f;
  box-shadow: 12px 20px 34px rgba(0, 0, 0, 0.3);
}

.screenshot-grid figure:nth-child(2),
.screenshot-grid figure:nth-child(4) {
  margin-top: 3rem;
}

.screenshot-grid figcaption {
  display: flex;
  padding-top: 1rem;
  flex-direction: column;
  color: #9fb2ce;
  font-size: 0.88rem;
}

.screenshot-grid figcaption strong {
  color: #ffffff;
  font-size: 1rem;
}

.auto-section {
  display: grid;
  padding: 7rem max(1rem, calc((100% - 1180px) / 2));
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  align-items: end;
  gap: 5rem;
  background: #006e8d;
  color: #ffffff;
}

.auto-section .signal-label {
  color: #d2f7ff;
}

.auto-copy p:last-child {
  max-width: 64ch;
  margin-bottom: 0;
  color: #e4f8ff;
  font-size: 1.12rem;
}

.exclusion-block {
  padding: 2rem;
  border: 2px solid #ffffff;
  background: #07536b;
  box-shadow: 14px 18px 0 #053d4f;
}

.exclusion-block strong {
  display: block;
  margin-bottom: 0.8rem;
  font-size: 1.2rem;
}

.exclusion-block p {
  margin-bottom: 0;
  color: #ffffff;
}

.requirements-section {
  background: #ffffff;
  color: #07101f;
}

.requirements-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
}

.required-list ol {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: requirements;
}

.required-list li {
  display: grid;
  min-height: 78px;
  padding: 1rem 0;
  grid-template-columns: 62px 1fr;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid #b8c5d2;
  counter-increment: requirements;
  font-size: 1.08rem;
  font-weight: 700;
}

.required-list li::before {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  background: #07101f;
  color: #61ddff;
  content: counter(requirements);
  font-weight: 900;
}

.tested-hardware-note {
  margin-top: 1.5rem;
  padding: 1rem;
  border: 1px solid #aab9ca;
  background: #f7fafc;
}

.tested-hardware-note p {
  margin-bottom: 0.5rem;
}

.tested-hardware-note a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: #006f8f;
  font-weight: 700;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  vertical-align: middle;
}

.tested-hardware-note .affiliate-disclosure {
  margin-bottom: 0;
  color: #3b4d63;
  font-size: 0.88rem;
}

.not-supported {
  padding: 2rem;
  background: #e7eef5;
}

.not-supported ul {
  margin: 1.5rem 0 2rem;
  padding-left: 1.3rem;
}

.not-supported li {
  margin-bottom: 0.7rem;
  font-weight: 700;
}

.not-supported p {
  margin-bottom: 0;
  color: #33475c;
}

.privacy-section {
  display: grid;
  padding: 7rem max(1rem, calc((100% - 1180px) / 2));
  grid-template-columns: minmax(300px, 1fr) minmax(300px, 1fr);
  gap: 5rem;
  background: #0b382f;
  color: #ffffff;
}

.privacy-section .signal-label {
  color: #86f1d2;
}

.privacy-copy {
  padding-top: 1rem;
  color: #d3f1e8;
  font-size: 1.08rem;
}

.privacy-copy p:last-child {
  margin-bottom: 0;
}

.safety-section {
  display: grid;
  padding: 7rem max(1rem, calc((100% - 1180px) / 2));
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 3rem;
  background: #28120f;
  color: #fff8f3;
}

.safety-section .signal-label {
  color: #ffac94;
}

.warning-mark {
  display: grid;
  width: 88px;
  height: 88px;
  place-items: center;
  border: 3px solid #ff7654;
  border-radius: 50%;
  color: #ffac94;
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
}

.safety-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem 2.5rem;
  color: #f1cec3;
}

.safety-copy p {
  margin-bottom: 0;
}

.closing-section {
  display: grid;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 6rem 0;
  grid-template-columns: 160px minmax(260px, 1fr) auto;
  align-items: center;
  gap: 2.5rem;
}

.closing-section img {
  border-radius: 22%;
}

.closing-section h2 {
  margin-bottom: 0.6rem;
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.closing-section p {
  margin-bottom: 0;
  color: #aebed5;
}

footer {
  border-top: 1px solid #2a3d58;
  background: #040a14;
}

.footer-inner {
  display: flex;
  width: min(1180px, calc(100% - 2rem));
  min-height: 150px;
  margin: 0 auto;
  padding: 2rem 0;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.footer-inner p {
  margin: 0;
  color: #9fb1ca;
}

.footer-inner strong {
  color: #ffffff;
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr 320px;
    gap: 2rem;
  }

  .feature-row div:last-child {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .screenshot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .screenshot-grid figure:nth-child(2),
  .screenshot-grid figure:nth-child(4) {
    margin-top: 0;
  }

  .auto-section,
  .privacy-section {
    gap: 3rem;
  }

  .closing-section {
    grid-template-columns: 120px 1fr;
  }

  .closing-section img {
    width: 120px;
  }

  .closing-section .status-block {
    grid-column: 2;
    justify-self: start;
  }
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 4.75rem;
  }

  .nav-shell {
    min-height: 68px;
  }

  .brand img {
    width: 44px;
  }

  .site-header nav {
    display: none;
  }

  .hero {
    padding: 3.5rem 0 5rem;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    display: contents;
  }

  .hero .signal-label {
    order: 1;
  }

  .hero h1 {
    order: 2;
  }

  .hero-summary {
    order: 3;
  }

  .hero-mark {
    order: 4;
  }

  .hero-mark img {
    width: min(78vw, 360px);
  }

  .hero .status-block {
    order: 5;
    justify-self: start;
  }

  .availability-note {
    order: 6;
  }

  .demo-section {
    margin-bottom: 4.5rem;
  }

  .demo-label,
  .split-heading,
  .auto-section,
  .requirements-layout,
  .privacy-section {
    grid-template-columns: 1fr;
  }

  .demo-label,
  .split-heading,
  .auto-section,
  .requirements-layout,
  .privacy-section {
    gap: 1.5rem;
  }

  .feature-section,
  .screens-section,
  .requirements-section,
  .auto-section,
  .privacy-section,
  .safety-section {
    padding-top: 4.5rem;
    padding-bottom: 4.5rem;
  }

  .section-heading {
    margin-bottom: 2.5rem;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .feature-index {
    padding-top: 0;
  }

  .screenshot-grid {
    width: min(100%, 380px);
    grid-template-columns: minmax(0, 1fr);
  }

  .exclusion-block {
    box-shadow: 8px 10px 0 #053d4f;
  }

  .safety-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .warning-mark {
    width: 64px;
    height: 64px;
    font-size: 2.5rem;
  }

  .safety-copy {
    grid-template-columns: 1fr;
  }

  .closing-section {
    padding: 4.5rem 0;
    grid-template-columns: 84px 1fr;
    gap: 1.5rem;
  }

  .closing-section img {
    width: 84px;
  }

  .closing-section .status-block {
    grid-column: 1 / span 2;
  }

  .footer-inner {
    padding: 2.5rem 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-inner nav {
    flex-wrap: wrap;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: 2.75rem;
  }

  .status-block {
    width: 100%;
  }

  .demo-label,
  .not-supported,
  .exclusion-block {
    padding: 1.25rem;
  }

  .closing-section {
    grid-template-columns: 1fr;
  }

  .closing-section .status-block {
    grid-column: 1;
  }
}

@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;
  }
}