:root {
  color-scheme: light;
  --ink: #10202b;
  --muted: #536576;
  --line: #dbe5ec;
  --paper: #ffffff;
  --soft: #f3f8fb;
  --deep: #0e2535;
  --blue: #1769aa;
  --blue-strong: #0b4d86;
  --green: #24a06a;
  --amber: #f2b84b;
  --shadow: 0 24px 60px rgba(14, 37, 53, 0.14);
  --shadow-soft: 0 18px 42px rgba(14, 37, 53, 0.08);
  --radius: 8px;
  --container: min(1180px, calc(100% - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fbfdff;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration-color: rgba(23, 105, 170, 0.35);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--blue-strong);
}

code {
  display: inline-block;
  border: 1px solid rgba(23, 105, 170, 0.18);
  border-radius: 6px;
  background: #eef6fb;
  color: #0a3f6d;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.95em;
  font-weight: 700;
  line-height: 1.35;
  padding: 0.18rem 0.42rem;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.12;
}

h1 {
  max-width: 790px;
  margin-bottom: 1rem;
  font-size: clamp(2.55rem, 5.7vw, 4.8rem);
  letter-spacing: 0;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.9rem, 4vw, 3.25rem);
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.15rem;
}

p {
  color: var(--muted);
}

strong {
  color: var(--ink);
  font-weight: 750;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  transform: translateY(-150%);
  border-radius: 6px;
  background: var(--paper);
  color: var(--deep);
  padding: 0.7rem 1rem;
  box-shadow: var(--shadow);
}

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

.site-header {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at top left, rgba(36, 160, 106, 0.24), transparent 34rem),
    linear-gradient(135deg, #0e2535 0%, #123c58 48%, #1769aa 100%);
  background-size: 56px 56px, 56px 56px, auto, auto;
  color: #ffffff;
}

.nav {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: var(--container);
  margin: 0 auto;
  padding: 1.35rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: block;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.9rem;
  font-weight: 650;
  padding: 0.65rem 0.8rem;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 1.15rem;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.hero {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
  gap: clamp(2.4rem, 5vw, 5.6rem);
  align-items: center;
  width: var(--container);
  min-height: min(760px, calc(100svh - 80px));
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 7rem) 0 clamp(4rem, 8vw, 7rem);
}

.hero h1,
.hero strong {
  color: #ffffff;
}

.eyebrow {
  margin-bottom: 0.85rem;
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #8fe0b6;
}

.hero-lead {
  max-width: 720px;
  margin-bottom: 1.25rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.05rem, 2.1vw, 1.35rem);
}

.notice {
  max-width: 760px;
  margin-bottom: 1.45rem;
  border: 1px solid rgba(242, 184, 75, 0.45);
  border-left: 4px solid var(--amber);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  font-weight: 650;
  padding: 0.95rem 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.6rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
  font-weight: 800;
  padding: 0.78rem 1.05rem;
  text-decoration: none;
}

.button.primary {
  background: #ffffff;
  color: var(--deep);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
  color: #ffffff;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.endpoint {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  max-width: 760px;
  margin: 0;
}

.endpoint div {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  backdrop-filter: blur(10px);
}

.endpoint dt {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.endpoint dd {
  margin: 0.28rem 0 0;
  color: #ffffff;
  font-weight: 800;
}

.endpoint code {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.22);
}

.hero-media {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.25);
  padding: clamp(1rem, 2.5vw, 1.8rem);
}

.hero-media img {
  width: 100%;
  border-radius: 8px;
  background: #ffffff;
}

.hero-media figcaption {
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.92rem;
}

.section {
  width: var(--container);
  margin: 0 auto;
  padding: clamp(4.2rem, 7vw, 6.5rem) 0;
}

.section.muted {
  width: 100%;
  background: linear-gradient(180deg, #f3f8fb 0%, #edf5f9 100%);
}

.section.muted > * {
  width: var(--container);
  margin-right: auto;
  margin-left: auto;
}

.section-heading {
  max-width: 820px;
  margin-bottom: clamp(2rem, 4vw, 3.2rem);
}

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

.content-grid,
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.62fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.text-block {
  max-width: 760px;
}

.highlight-panel,
.feature-card,
.config-card,
.steps li,
.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.highlight-panel {
  padding: 1.6rem;
  box-shadow: var(--shadow-soft);
}

.check-list,
.device-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.8rem;
  color: var(--muted);
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 0.62rem;
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 3px;
  background: var(--green);
  content: "";
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.15rem;
}

.feature-card {
  min-height: 255px;
  padding: 1.55rem;
  box-shadow: 0 14px 34px rgba(14, 37, 53, 0.06);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(23, 105, 170, 0.28);
  box-shadow: var(--shadow-soft);
}

.feature-icon {
  display: inline-grid;
  width: 2.45rem;
  height: 2.45rem;
  place-items: center;
  margin-bottom: 1.15rem;
  border-radius: 8px;
  background: #e8f3fb;
  color: var(--blue-strong);
  font-size: 0.78rem;
  font-weight: 900;
}

.feature-card p,
.article-layout p,
.faq-list p,
.steps p {
  margin-bottom: 0;
}

.device-list {
  display: grid;
  gap: 0.8rem;
}

.device-list li {
  display: grid;
  gap: 0.18rem;
  border-left: 4px solid var(--blue);
  border-radius: 8px;
  background: linear-gradient(90deg, #eef6fb, #f8fbfd);
  padding: 1.05rem 1.2rem;
  box-shadow: 0 10px 24px rgba(14, 37, 53, 0.05);
}

.device-list span {
  color: var(--muted);
}

.config {
  padding-top: clamp(3rem, 6vw, 5rem);
}

.config-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.44fr);
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 1.15rem;
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(135deg, #0e2535 0%, #123c58 100%);
  background-size: 42px 42px, 42px 42px, auto;
  color: #ffffff;
  box-shadow: var(--shadow);
  padding: clamp(1.7rem, 4vw, 2.8rem);
}

.config-card h2,
.config-card p {
  color: #ffffff;
}

.config-card .eyebrow {
  color: #8fe0b6;
}

.server-box {
  display: grid;
  gap: 0.8rem;
}

.server-box div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  padding: 1rem;
}

.server-box span {
  color: rgba(255, 255, 255, 0.65);
  font-weight: 700;
}

.server-box code {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.22);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps li {
  position: relative;
  min-height: 230px;
  padding: 1.45rem;
  counter-increment: steps;
  box-shadow: 0 14px 34px rgba(14, 37, 53, 0.05);
}

.steps li::before {
  display: inline-grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  margin-bottom: 1rem;
  border-radius: 8px;
  background: #fff6df;
  color: #8a5a00;
  content: counter(steps, decimal-leading-zero);
  font-size: 0.78rem;
  font-weight: 900;
}

.article-layout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
}

.article-layout article {
  border-top: 4px solid var(--green);
  padding-top: 1.1rem;
}

.legal {
  padding-top: clamp(3rem, 6vw, 5rem);
}

.legal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
}

.legal-grid article {
  border: 1px solid rgba(242, 184, 75, 0.42);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fffaf0 0%, #ffffff 100%);
  box-shadow: 0 16px 34px rgba(111, 71, 0, 0.07);
  padding: 1.45rem;
}

.legal-grid h3 {
  color: #6f4700;
}

.legal-grid p {
  margin-bottom: 0;
}

.faq-list {
  display: grid;
  gap: 0.9rem;
}

.faq-list details {
  box-shadow: 0 10px 26px rgba(14, 37, 53, 0.04);
  padding: 1.08rem 1.2rem;
}

.faq-list summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 800;
}

.faq-list summary::marker {
  color: var(--blue);
}

.faq-list p {
  padding-top: 0.75rem;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: var(--container);
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 2.4rem 0;
}

.site-footer p {
  margin-bottom: 0;
}

.footer-brand {
  color: var(--ink);
}

.footer-brand .brand-mark {
  border-color: var(--line);
  background: var(--deep);
}

.copyright {
  text-align: right;
}

:focus-visible {
  outline: 3px solid rgba(242, 184, 75, 0.85);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  :root {
    --container: min(100% - 32px, 760px);
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 0.4rem);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius);
    background: rgba(14, 37, 53, 0.98);
    padding: 0.5rem;
  }

  .nav-links.is-open {
    display: flex;
  }

  .hero,
  .content-grid,
  .split,
  .config-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .endpoint,
  .feature-grid,
  .steps,
  .article-layout,
  .legal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(100% - 28px, 100%);
  }

  body {
    font-size: 15px;
  }

  .nav {
    padding: 0.9rem 0;
  }

  .brand {
    gap: 0.55rem;
  }

  .brand-mark {
    width: 2rem;
    height: 2rem;
  }

  .hero-actions,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .endpoint,
  .feature-grid,
  .steps,
  .article-layout,
  .legal-grid {
    grid-template-columns: 1fr;
  }

  .server-box div {
    align-items: flex-start;
    flex-direction: column;
  }

  .copyright {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}