:root {
  --bg: #050308;
  --bg-soft: #0b0611;
  --panel: #130c20;
  --panel-2: #1b102c;
  --line: rgba(202, 126, 255, 0.28);
  --text: #f9f0ff;
  --muted: #c7b1da;
  --purple: #a829ff;
  --pink: #ff4fd8;
  --cyan: #51dcff;
  --green: #30f2a2;
  --amber: #ffd166;
  --red: #ff3b70;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
  padding: 0 clamp(18px, 5vw, 64px);
  border-bottom: 1px solid rgba(202, 126, 255, 0.18);
  background: rgba(5, 3, 8, 0.82);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0;
  text-decoration: none;
}

.brand img {
  width: 58px;
  height: 58px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 0 20px rgba(168, 41, 255, 0.35);
}

nav {
  display: flex;
  gap: 22px;
}

nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

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

.hero {
  position: relative;
  display: grid;
  min-height: calc(86svh - 86px);
  overflow: hidden;
  border-bottom: 1px solid rgba(202, 126, 255, 0.16);
  background:
    linear-gradient(90deg, rgba(5, 3, 8, 0.98) 0%, rgba(5, 3, 8, 0.92) 38%, rgba(5, 3, 8, 0.74) 100%),
    #050308;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 160px;
  background: linear-gradient(180deg, transparent, rgba(168, 41, 255, 0.1));
  pointer-events: none;
}

.hero-media {
  position: absolute;
  inset: 0;
  background-image: url("logo.png");
  background-position: right 8vw center;
  background-repeat: no-repeat;
  background-size: min(58vw, 720px);
  filter: drop-shadow(0 0 38px rgba(168, 41, 255, 0.34));
  opacity: 0.88;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100% - 36px));
  margin: auto 0 auto clamp(18px, 7vw, 92px);
  padding: 64px 0 82px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--pink);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  color: var(--text);
  font-size: clamp(54px, 9vw, 118px);
  line-height: 0.9;
}

.lede {
  max-width: 590px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 900;
  text-decoration: none;
}

.button.primary {
  color: #08050d;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  box-shadow: 0 0 22px rgba(168, 41, 255, 0.35);
}

.button.secondary {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.band,
.install {
  padding: 64px clamp(18px, 5vw, 64px);
}

.band {
  background: var(--bg-soft);
}

.install {
  background:
    linear-gradient(180deg, rgba(168, 41, 255, 0.08), transparent),
    #050308;
}

.section-head {
  width: min(1120px, 100%);
  margin: 0 auto 26px;
}

.section-head h2 {
  max-width: 760px;
  margin: 0;
  color: var(--text);
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1;
}

.section-copy {
  max-width: 760px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  width: min(1120px, 100%);
  margin: 0 auto;
}

.signal-card {
  min-height: 210px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(19, 12, 32, 0.78);
}

.signal-mark {
  display: block;
  width: 34px;
  height: 6px;
  margin-bottom: 34px;
  border-radius: 4px;
}

.signal-mark.red {
  background: var(--red);
}

.signal-mark.amber {
  background: var(--amber);
}

.signal-mark.green {
  background: var(--green);
}

.signal-mark.cyan {
  background: var(--cyan);
}

.signal-card h3 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 20px;
  line-height: 1.1;
}

.signal-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps li {
  min-height: 190px;
  padding: 20px;
  border: 1px solid rgba(202, 126, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  counter-increment: steps;
}

.steps li::before {
  content: counter(steps);
  display: grid;
  width: 34px;
  height: 34px;
  margin-bottom: 28px;
  place-items: center;
  border-radius: 50%;
  color: #08050d;
  background: var(--cyan);
  font-size: 14px;
  font-weight: 900;
}

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

.steps strong {
  color: var(--text);
  font-size: 18px;
}

.steps span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.install-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  width: min(1120px, 100%);
  margin: 18px auto 0;
}

code {
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 26px clamp(18px, 5vw, 64px);
  border-top: 1px solid rgba(202, 126, 255, 0.18);
  color: var(--muted);
  background: #050308;
  font-size: 14px;
}

.footer a {
  color: var(--text);
  font-weight: 900;
  text-decoration: none;
}

.footer-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

.docs-main {
  background:
    linear-gradient(180deg, rgba(168, 41, 255, 0.12), transparent 360px),
    var(--bg);
}

.docs-hero {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 78px 0 42px;
}

.docs-hero h1 {
  max-width: 760px;
  font-size: clamp(46px, 8vw, 92px);
}

.docs-layout {
  display: grid;
  gap: 14px;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 0 0 72px;
}

.doc-panel {
  padding: 24px;
  border: 1px solid rgba(202, 126, 255, 0.22);
  border-radius: 8px;
  background: rgba(19, 12, 32, 0.76);
}

.doc-panel h2,
.doc-panel h3,
.doc-panel p {
  margin: 0;
}

.doc-panel h2 {
  color: var(--text);
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.05;
}

.doc-panel h3 {
  color: var(--text);
  font-size: 18px;
  line-height: 1.2;
}

.doc-panel p,
.doc-list li,
.risk-item span {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.doc-panel h2 + p,
.doc-panel h2 + .doc-list,
.doc-panel h2 + .doc-grid,
.doc-panel h2 + .risk-scale {
  margin-top: 16px;
}

.doc-list {
  display: grid;
  gap: 10px;
  padding-left: 22px;
}

.doc-list li::marker {
  color: var(--pink);
  font-weight: 900;
}

.doc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.doc-grid > div {
  min-height: 136px;
  padding: 16px;
  border: 1px solid rgba(202, 126, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.doc-grid p {
  margin-top: 8px;
}

.risk-scale {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.risk-item {
  min-height: 150px;
  padding: 16px;
  border: 1px solid rgba(202, 126, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.risk-item strong,
.risk-item span {
  display: block;
}

.risk-item strong {
  color: var(--risk-color);
  font-size: 18px;
}

.risk-item span {
  margin-top: 8px;
}

.risk-item.low {
  --risk-color: var(--green);
}

.risk-item.moderate {
  --risk-color: var(--amber);
}

.risk-item.high {
  --risk-color: #ff7a45;
}

.risk-item.critical {
  --risk-color: var(--red);
}

.doc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

@media (max-width: 820px) {
  .topbar {
    min-height: 72px;
  }

  .brand {
    gap: 11px;
    font-size: 19px;
  }

  .brand img {
    width: 48px;
    height: 48px;
  }

  nav {
    display: none;
  }

  .hero {
    min-height: calc(88svh - 72px);
  }

  .hero-media {
    background-position: center top 26px;
    background-size: min(112vw, 620px);
    opacity: 0.36;
  }

  .hero-content {
    width: min(100% - 36px, 620px);
    margin: auto auto 0;
    padding: 210px 0 48px;
  }

  .signal-grid,
  .steps,
  .doc-grid,
  .risk-scale {
    grid-template-columns: 1fr;
  }

  .signal-card,
  .steps li {
    min-height: auto;
  }
}

@media (max-width: 460px) {
  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }
}