:root {
  color-scheme: dark;
  --bg: #090c14;
  --surface: rgba(18, 23, 36, 0.78);
  --text: #f4f7fb;
  --muted: #9aa5b5;
  --line: rgba(255, 255, 255, 0.1);
  --cyan: #34d7ee;
  --blue: #6788ff;
  --violet: #9b7bff;
  --green: #55d69e;
  --radius: 22px;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    var(--bg);
  background-size: 64px 64px;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.container {
  width: min(1140px, calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  transform: translateY(-160%);
  border-radius: 10px;
  background: var(--text);
  color: var(--bg);
}

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

.ambient {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
}

.ambient-one {
  top: -260px;
  left: 45%;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle, rgba(80, 109, 255, 0.2), transparent 68%);
}

.ambient-two {
  top: 480px;
  left: -320px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(52, 215, 238, 0.09), transparent 70%);
}

.site-header {
  position: relative;
  z-index: 5;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 12, 20, 0.72);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
}

.brand { display: inline-flex; }

.brand img {
  width: 218px;
  height: auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
  transition: color 160ms ease;
}

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

.hero {
  display: grid;
  min-height: 680px;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: 72px;
  align-items: center;
  padding-block: 92px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-copy > .eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
}

.hero-copy > .eyebrow span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(52, 215, 238, 0.78);
}

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

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3.2rem, 6.5vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: -0.058em;
}

h1 em {
  background: linear-gradient(110deg, var(--cyan), var(--blue) 53%, var(--violet));
  background-clip: text;
  color: transparent;
  font-style: normal;
}

.lede {
  max-width: 670px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.5vw, 1.24rem);
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 0.94rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover { transform: translateY(-2px); }

.button-primary {
  border-color: transparent;
  background: var(--text);
  color: #0a0d15;
}

.button-secondary { background: rgba(255, 255, 255, 0.035); }

.button-secondary:hover {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.065);
}

.proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 28px 0 0;
  padding: 0;
  color: #7f8a9b;
  font-size: 0.78rem;
  font-weight: 650;
  list-style: none;
}

.proof li::before {
  margin-right: 7px;
  color: var(--green);
  content: "•";
}

.protocol-card {
  position: relative;
  overflow: hidden;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(23, 29, 45, 0.9), rgba(12, 16, 26, 0.94));
  box-shadow: var(--shadow);
}

.protocol-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
  content: "";
}

.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 19px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.status { color: var(--green); }

.protocol {
  margin: 0;
  padding: 8px 0;
  list-style: none;
}

.protocol li {
  display: grid;
  position: relative;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  padding: 19px 0;
}

.protocol li:not(:last-child)::after {
  position: absolute;
  bottom: -1px;
  left: 13px;
  width: 1px;
  height: 22px;
  background: linear-gradient(var(--line), transparent);
  content: "";
}

.step {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid rgba(103, 136, 255, 0.32);
  border-radius: 8px;
  background: rgba(103, 136, 255, 0.08);
  color: #9aafff;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.67rem;
}

.protocol strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.93rem;
}

.protocol p {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

.lanes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.lane {
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.025);
}

.lane span, .lane strong { display: block; }

.lane span {
  margin-bottom: 5px;
  font-size: 0.67rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lane strong { font-size: 0.8rem; }

.recovery span { color: var(--cyan); }

.incident span { color: #b59dff; }

.principles {
  padding-block: 108px;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 70px;
  align-items: end;
  margin-bottom: 42px;
}

.section-heading .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -7px;
}

.section-heading h2, .install h2 {
  margin: 0;
  font-size: clamp(2.2rem, 4.2vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.045em;
}

.section-heading > p:last-child, .install > div > p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.principle-grid article {
  min-height: 230px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
}

.icon {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  margin-bottom: 42px;
  border: 1px solid rgba(52, 215, 238, 0.2);
  border-radius: 11px;
  background: rgba(52, 215, 238, 0.06);
  color: var(--cyan);
  font-size: 1.1rem;
}

.principle-grid h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.principle-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.install {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 28px 60px;
  align-items: center;
  margin-bottom: 84px;
  padding: 54px;
  border: 1px solid rgba(103, 136, 255, 0.24);
  border-radius: 26px;
  background:
    radial-gradient(circle at 90% 10%, rgba(103, 136, 255, 0.14), transparent 42%),
    var(--surface);
  box-shadow: var(--shadow);
}

.install .eyebrow { margin-bottom: 12px; }

.install > div > p:last-child { margin-top: 16px; }

pre {
  overflow-x: auto;
  margin: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(5, 8, 14, 0.72);
  color: #c8d2e1;
  font-size: 0.78rem;
  line-height: 1.7;
  white-space: pre-wrap;
}

.text-link {
  grid-column: 2;
  width: fit-content;
  color: #b9c7ff;
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
}

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

.footer {
  display: flex;
  min-height: 88px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  color: #707b8b;
  font-size: 0.76rem;
}

@media (max-width: 880px) {
  .ambient {
    left: 0;
    width: 100%;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 54px;
    padding-block: 72px;
  }

  .protocol-card { max-width: 620px; }

  .section-heading, .install { grid-template-columns: 1fr; }

  .principle-grid { grid-template-columns: 1fr; }

  .principle-grid article { min-height: auto; }

  .icon { margin-bottom: 28px; }

  .text-link { grid-column: 1; }
}

@media (max-width: 560px) {
  .container { width: min(100% - 28px, 1140px); }

  .nav { min-height: 68px; }

  .brand img { width: 178px; }

  .hero {
    min-height: auto;
    padding-block: 56px 74px;
  }

  h1 { font-size: clamp(2.75rem, 14vw, 4rem); }

  .actions, .actions .button { width: 100%; }

  .proof {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .protocol-card { padding: 18px; }

  .card-topline {
    align-items: flex-start;
    flex-direction: column;
  }

  .lanes { grid-template-columns: 1fr; }

  .principles { padding-block: 78px; }

  .section-heading { margin-bottom: 30px; }

  .install {
    margin-bottom: 48px;
    padding: 30px 22px;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-block: 26px;
  }
}

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

  *, *::before, *::after {
    transition-duration: 0.01ms !important;
  }
}