:root {
  color-scheme: dark;
  --bg: #07080d;
  --bg-deep: #020308;
  --paper: #f6f8f5;
  --ink: #f8faf6;
  --ink-dark: #121419;
  --muted: #9ca6ad;
  --muted-dark: #5c6670;
  --line: rgba(255, 255, 255, 0.14);
  --line-dark: rgba(11, 15, 20, 0.12);
  --green: #67ffb4;
  --cyan: #56d6ff;
  --blue: #748cff;
  --orange: #ffb45f;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
}

.site-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  left: 0;
  padding: 18px clamp(20px, 4vw, 56px);
  position: fixed;
  right: 0;
  top: 0;
  z-index: 20;
}

.site-header.solid {
  background: rgba(6, 8, 12, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(20px);
}

.brand {
  align-items: center;
  display: inline-flex;
  font-size: 15px;
  font-weight: 760;
  gap: 10px;
  text-decoration: none;
}

.brand img {
  border-radius: 9px;
  box-shadow: 0 10px 28px rgba(69, 255, 173, 0.18);
}

.site-header nav,
.site-footer nav {
  align-items: center;
  display: flex;
  gap: 22px;
}

.site-header nav a,
.site-footer nav a {
  color: rgba(248, 250, 246, 0.72);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.site-header nav a:hover,
.site-footer nav a:hover {
  color: var(--ink);
}

.nav-action {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 9px 13px;
}

.hero {
  min-height: 94svh;
  overflow: hidden;
  padding: 116px clamp(20px, 4vw, 56px) 48px;
  position: relative;
}

#signal-field,
.hero-noise {
  inset: 0;
  position: absolute;
}

#signal-field {
  height: 100%;
  width: 100%;
}

.hero-noise {
  background:
    radial-gradient(circle at 70% 34%, rgba(86, 214, 255, 0.18), transparent 28%),
    radial-gradient(circle at 42% 76%, rgba(103, 255, 180, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(2, 3, 8, 0.52), #07080d 96%);
  pointer-events: none;
}

.hero-inner {
  align-items: center;
  display: grid;
  gap: clamp(36px, 6vw, 96px);
  grid-template-columns: minmax(0, 1fr) minmax(260px, 460px);
  margin: 0 auto;
  max-width: 1180px;
  min-height: calc(94svh - 164px);
  position: relative;
  z-index: 2;
}

.hero-copy h1 {
  font-size: clamp(64px, 13vw, 156px);
  font-weight: 860;
  letter-spacing: 0;
  line-height: 0.86;
  margin: 0;
}

.hero-subtitle {
  color: rgba(248, 250, 246, 0.8);
  font-size: clamp(22px, 3.2vw, 42px);
  font-weight: 670;
  line-height: 1.08;
  margin: 28px 0 0;
  max-width: 700px;
}

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

.button {
  align-items: center;
  border-radius: 999px;
  display: inline-flex;
  font-size: 14px;
  font-weight: 780;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  text-decoration: none;
}

.button.primary {
  background: var(--green);
  color: #05120c;
  box-shadow: 0 16px 38px rgba(103, 255, 180, 0.25);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
  color: var(--ink);
}

.button.dark {
  background: #0d1117;
  color: white;
}

.watch-stage {
  display: grid;
  justify-items: center;
  perspective: 1000px;
}

.watch-shell {
  aspect-ratio: 0.78;
  background: linear-gradient(145deg, #1d232b, #050608 58%, #222a32);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 72px;
  box-shadow: var(--shadow), inset 0 0 0 6px rgba(255, 255, 255, 0.04);
  max-width: 330px;
  padding: 18px;
  position: relative;
  transform: rotateX(7deg) rotateY(-12deg) rotateZ(2deg);
  width: min(76vw, 330px);
}

.watch-shell::before,
.watch-shell::after {
  background: linear-gradient(180deg, #15191f, #050608);
  content: "";
  height: 70px;
  left: 50%;
  position: absolute;
  transform: translateX(-50%);
  width: 118px;
  z-index: -1;
}

.watch-shell::before {
  border-radius: 28px 28px 10px 10px;
  top: -58px;
}

.watch-shell::after {
  border-radius: 10px 10px 28px 28px;
  bottom: -58px;
}

.watch-screen {
  background:
    radial-gradient(circle at 50% 26%, rgba(103, 255, 180, 0.16), transparent 28%),
    linear-gradient(180deg, #0f1619, #05070a);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 54px;
  height: 100%;
  overflow: hidden;
  padding: 24px 18px;
}

.watch-status {
  color: rgba(248, 250, 246, 0.7);
  display: flex;
  font-size: 11px;
  font-weight: 760;
  justify-content: space-between;
}

.scan-ring {
  align-items: center;
  border: 1px solid rgba(103, 255, 180, 0.36);
  border-radius: 999px;
  display: grid;
  height: 118px;
  justify-content: center;
  margin: 28px auto 22px;
  position: relative;
  width: 118px;
}

.scan-ring::before,
.scan-ring::after {
  border: 1px solid rgba(86, 214, 255, 0.25);
  border-radius: 999px;
  content: "";
  inset: -14px;
  position: absolute;
}

.scan-ring::after {
  inset: -28px;
  opacity: 0.5;
}

.scan-ring img {
  border-radius: 24px;
  height: 68px;
  width: 68px;
}

.device-list {
  display: grid;
  gap: 9px;
}

.device-row {
  align-items: center;
  background: rgba(255, 255, 255, 0.065);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  display: flex;
  gap: 10px;
  padding: 10px 11px;
}

.device-row.strong {
  background: rgba(103, 255, 180, 0.13);
  border-color: rgba(103, 255, 180, 0.28);
}

.device-row b,
.device-row em {
  display: block;
  font-style: normal;
}

.device-row b {
  font-size: 13px;
}

.device-row em {
  color: rgba(248, 250, 246, 0.58);
  font-size: 11px;
  margin-top: 2px;
}

.bars {
  align-items: end;
  display: inline-flex;
  gap: 2px;
  height: 18px;
  width: 22px;
}

.bars i {
  background: var(--green);
  border-radius: 2px;
  display: block;
  width: 4px;
}

.bars i:nth-child(1) { height: 6px; }
.bars i:nth-child(2) { height: 10px; }
.bars i:nth-child(3) { height: 14px; }
.bars i:nth-child(4) { height: 18px; }
.bars.mid i:nth-child(4),
.bars.low i:nth-child(3),
.bars.low i:nth-child(4) {
  background: rgba(248, 250, 246, 0.2);
}

.feature-band,
.split-band,
.page-main,
.policy-main {
  margin: 0 auto;
  max-width: 1180px;
  padding: 84px clamp(20px, 4vw, 56px);
}

.section-head {
  align-items: end;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 0.65fr);
  margin-bottom: 34px;
}

h2 {
  font-size: clamp(32px, 5vw, 64px);
  letter-spacing: 0;
  line-height: 0.98;
  margin: 0;
}

.section-head p,
.split-band p,
.page-hero p,
.policy-card p,
.last-resort p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
  margin: 0;
}

.feature-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(4, 1fr);
}

.feature-grid article {
  background: #10141b;
  border: 1px solid var(--line);
  min-height: 250px;
  padding: 26px;
}

.feature-grid article:first-child {
  border-radius: 24px 0 0 24px;
}

.feature-grid article:last-child {
  border-radius: 0 24px 24px 0;
}

.feature-icon {
  color: var(--green);
  font-size: 12px;
  font-weight: 860;
}

h3 {
  font-size: 22px;
  letter-spacing: 0;
  margin: 56px 0 12px;
}

.feature-grid p,
.support-grid p,
.troubleshoot-list p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
  margin: 0;
}

.split-band {
  align-items: center;
  display: grid;
  gap: clamp(32px, 7vw, 90px);
  grid-template-columns: minmax(0, 0.85fr) minmax(300px, 0.7fr);
  padding-top: 24px;
}

.check-list {
  display: grid;
  gap: 14px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.check-list li {
  color: rgba(248, 250, 246, 0.82);
  font-size: 16px;
  line-height: 1.5;
  padding-left: 28px;
  position: relative;
}

.check-list li::before {
  background: var(--green);
  border-radius: 999px;
  content: "";
  height: 9px;
  left: 0;
  position: absolute;
  top: 8px;
  width: 9px;
}

.terminal-card {
  background: #090d12;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.terminal-top {
  align-items: center;
  background: #121821;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 7px;
  height: 42px;
  padding: 0 16px;
}

.terminal-top span {
  border-radius: 999px;
  height: 10px;
  width: 10px;
}

.terminal-top span:nth-child(1) { background: #ff6b6b; }
.terminal-top span:nth-child(2) { background: #ffce68; }
.terminal-top span:nth-child(3) { background: #67ffb4; }

pre {
  margin: 0;
  overflow: auto;
  padding: 24px;
}

code {
  color: #dcefe6;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 14px;
  line-height: 1.65;
}

.page {
  background:
    radial-gradient(circle at 22% 14%, rgba(103, 255, 180, 0.12), transparent 28%),
    radial-gradient(circle at 82% 26%, rgba(86, 214, 255, 0.12), transparent 30%),
    var(--bg);
}

.page-main {
  padding-top: 132px;
}

.page-hero {
  align-items: end;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr) auto;
  min-height: 310px;
}

.page-hero h1,
.policy-card h1 {
  font-size: clamp(48px, 8vw, 96px);
  letter-spacing: 0;
  line-height: 0.92;
  margin: 0 0 20px;
}

.support-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 56px;
}

.support-grid article,
.support-panel,
.last-resort,
.policy-card {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18);
}

.support-grid article {
  padding: 28px;
}

.support-grid h2,
.support-panel h2,
.last-resort h2,
.policy-card h2 {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.06;
  margin-bottom: 18px;
}

ol {
  color: rgba(248, 250, 246, 0.78);
  display: grid;
  gap: 12px;
  line-height: 1.55;
  margin: 0;
  padding-left: 20px;
}

.support-panel {
  margin-top: 18px;
  padding: 28px;
}

.troubleshoot-list {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(4, 1fr);
}

.troubleshoot-list div {
  border-left: 1px solid var(--line);
  padding: 4px 22px 8px;
}

.troubleshoot-list div:first-child {
  border-left: 0;
  padding-left: 0;
}

.troubleshoot-list h3 {
  font-size: 18px;
  margin: 0 0 10px;
}

.last-resort {
  margin-top: 18px;
  padding: 28px;
}

.last-resort p + p {
  margin-top: 12px;
}

.last-resort a,
.policy-card a {
  color: var(--green);
  font-weight: 760;
}

.policy-main {
  padding-top: 132px;
}

.policy-card {
  margin: 0 auto;
  max-width: 850px;
  padding: clamp(28px, 5vw, 64px);
}

.policy-date {
  color: var(--green) !important;
  font-size: 13px !important;
  font-weight: 820;
  margin-bottom: 18px !important;
}

.policy-card h2 {
  margin-top: 38px;
}

.policy-card p + p {
  margin-top: 14px;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  margin: 42px clamp(20px, 4vw, 56px) 0;
  padding: 26px 0 34px;
}

.site-footer span {
  color: rgba(248, 250, 246, 0.66);
  font-size: 13px;
  font-weight: 760;
}

@media (max-width: 920px) {
  .hero-inner,
  .section-head,
  .split-band,
  .page-hero {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    font-size: clamp(58px, 15.2vw, 96px);
  }

  .watch-stage {
    margin-top: 36px;
  }

  .feature-grid,
  .troubleshoot-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-grid article,
  .feature-grid article:first-child,
  .feature-grid article:last-child {
    border-radius: 20px;
  }

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

  .troubleshoot-list div:nth-child(odd) {
    border-left: 0;
    padding-left: 0;
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    gap: 14px;
    padding: 14px 18px;
  }

  .site-header nav {
    flex-wrap: wrap;
    gap: 10px 14px;
    justify-content: flex-end;
  }

  .site-header nav a {
    font-size: 12px;
  }

  .nav-action {
    padding: 7px 10px;
  }

  .hero {
    min-height: auto;
    padding-top: 118px;
  }

  .hero-inner {
    min-height: auto;
  }

  .hero-subtitle {
    font-size: 22px;
  }

  .button {
    width: 100%;
  }

  .feature-band,
  .split-band,
  .page-main,
  .policy-main {
    padding-left: 18px;
    padding-right: 18px;
  }

  .feature-grid,
  .troubleshoot-list {
    grid-template-columns: 1fr;
  }

  .troubleshoot-list div,
  .troubleshoot-list div:nth-child(odd) {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 18px 0 4px;
  }

  .troubleshoot-list div:first-child {
    border-top: 0;
    padding-top: 0;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

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

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