:root {
  color-scheme: dark;
  --bg: #08120c;
  --bg-2: #0d1a12;
  --panel: rgba(13, 26, 18, 0.72);
  --panel-strong: rgba(17, 33, 23, 0.88);
  --line: rgba(234, 255, 226, 0.09);
  --text: #f5f8f3;
  --muted: rgba(245, 248, 243, 0.72);
  --soft: rgba(245, 248, 243, 0.58);
  --accent: #b8ff63;
  --accent-2: #7be46b;
  --accent-3: #ff5d52;
  --accent-4: #ffd35c;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 12%, rgba(184, 255, 99, 0.22), transparent 22%),
    radial-gradient(circle at 82% 18%, rgba(255, 93, 82, 0.12), transparent 18%),
    radial-gradient(circle at 78% 78%, rgba(123, 228, 107, 0.16), transparent 20%),
    linear-gradient(180deg, #08120c 0%, #0c1710 35%, #09100b 100%);
  color: var(--text);
  font-family: "SF Pro Text", "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Avenir Next", "Helvetica Neue", sans-serif;
  overflow-x: hidden;
}

.bg-orb {
  position: fixed;
  border-radius: 999px;
  pointer-events: none;
  z-index: 0;
  /* Keep the background decorative layer cheap while the page is scrolling. */
  contain: strict;
}

.bg-orb-a {
  width: 440px;
  height: 440px;
  left: -120px;
  top: 140px;
  background: radial-gradient(circle, rgba(184, 255, 99, 0.42), rgba(184, 255, 99, 0.02) 70%);
}

.bg-orb-b {
  width: 520px;
  height: 520px;
  right: -180px;
  top: 520px;
  background: radial-gradient(circle, rgba(255, 93, 82, 0.2), rgba(255, 93, 82, 0.02) 68%);
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.045;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 84px 84px;
}

.topbar,
main,
.footer {
  position: relative;
  z-index: 2;
}

.topbar,
.section,
.footer {
  width: min(var(--max), calc(100vw - 32px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 24px 0 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text);
}

.brand-icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.brand small {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 2px;
}

.nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.94rem;
  transition: color 0.18s ease, transform 0.18s ease;
}

.nav a:hover {
  color: var(--text);
  transform: translateY(-1px);
}

.section {
  padding: 28px 0;
  content-visibility: auto;
  contain-intrinsic-size: 720px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 28px;
  align-items: center;
  min-height: calc(100vh - 110px);
}

.hero-copy {
  padding: 24px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 0.88rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 14px;
}

.hero h1,
.section-heading h2,
.release-wrap h2 {
  margin: 0;
  font-family: "SF Pro Display", "SF Pro Text", "PingFang SC", "Avenir Next", "Helvetica Neue", sans-serif;
  letter-spacing: -0.04em;
  line-height: 0.98;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.9rem);
  max-width: 11ch;
}

.section-heading h2,
.release-wrap h2 {
  font-size: clamp(2rem, 4.5vw, 3.3rem);
  max-width: 15ch;
}

.lede {
  color: var(--muted);
  font-size: 1.07rem;
  line-height: 1.8;
  max-width: 56ch;
  margin: 20px 0 0;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.96rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

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

.btn-primary {
  color: #07210e;
  background: linear-gradient(135deg, var(--accent) 0%, #d8ff8e 100%);
  box-shadow: 0 16px 30px rgba(184, 255, 99, 0.25);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  list-style: none;
  margin: 30px 0 0;
}

.hero-stats li,
.feature-card,
.mode-card,
.release-card,
.step-card,
.device-shell,
.floating-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  /* Isolate cards so their shadows and borders do not invalidate the page. */
  contain: paint;
}

.hero-stats li {
  border-radius: 18px;
  padding: 16px 14px;
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  font-size: 1.02rem;
  margin-bottom: 4px;
}

.hero-stats span {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.hero-visual {
  position: relative;
  padding: 18px 0 22px;
}

.device-shell {
  border-radius: 34px;
  padding: 18px;
  background: linear-gradient(180deg, rgba(19, 34, 24, 0.94), rgba(10, 18, 13, 0.88));
}

.device-top {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--soft);
  font-size: 0.84rem;
  padding-bottom: 14px;
}

.traffic {
  width: 11px;
  height: 11px;
  border-radius: 999px;
}

.red { background: #ff605c; }
.yellow { background: #ffbd44; }
.green { background: #00ca4e; }

.device-title {
  margin-left: 8px;
  letter-spacing: 0.03em;
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.status-pill {
  padding: 16px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.status-pill span,
.mini-card span,
.chart-foot span,
.release-card li,
.mode-card li,
.step-card p,
.feature-card p,
.floating-card p {
  color: var(--muted);
}

.status-pill strong {
  display: block;
  margin-top: 7px;
  font-size: 1.05rem;
}

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

.mini-card {
  min-height: 160px;
  border-radius: 22px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.mini-card::after {
  content: "";
  position: absolute;
  inset: auto -20% -30% auto;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  opacity: 0.55;
}

.mini-card span {
  font-size: 0.86rem;
  position: relative;
  z-index: 1;
}

.mini-card strong {
  position: relative;
  z-index: 1;
  font-size: 2.2rem;
  line-height: 1;
  letter-spacing: -0.06em;
}

.mini-card em {
  position: relative;
  z-index: 1;
  font-style: normal;
  color: var(--soft);
  font-size: 0.88rem;
}

.gauge.blue {
  background: linear-gradient(160deg, rgba(55, 118, 255, 0.22), rgba(10, 20, 16, 0.88));
}

.gauge.blue::after {
  background: radial-gradient(circle, rgba(55, 118, 255, 0.45), transparent 68%);
}

.gauge.green {
  background: linear-gradient(160deg, rgba(110, 233, 108, 0.2), rgba(10, 20, 16, 0.88));
}

.gauge.green::after {
  background: radial-gradient(circle, rgba(110, 233, 108, 0.42), transparent 68%);
}

.metric.purple {
  background: linear-gradient(160deg, rgba(167, 111, 255, 0.2), rgba(10, 20, 16, 0.88));
}

.metric.purple::after {
  background: radial-gradient(circle, rgba(167, 111, 255, 0.4), transparent 68%);
}

.metric.orange {
  background: linear-gradient(160deg, rgba(255, 173, 61, 0.18), rgba(10, 20, 16, 0.88));
}

.metric.orange::after {
  background: radial-gradient(circle, rgba(255, 173, 61, 0.38), transparent 68%);
}

.chart-panel {
  margin-top: 12px;
  padding: 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.chart-head,
.chart-foot,
.release-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.section-label {
  display: inline-block;
  font-size: 0.76rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.chart-head h3 {
  margin: 0;
  font-size: 1.12rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(184, 255, 99, 0.12);
  color: #ddffac;
  font-size: 0.82rem;
  border: 1px solid rgba(184, 255, 99, 0.24);
}

.badge-soft {
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  border-color: rgba(255, 255, 255, 0.08);
}

.sparkline {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  align-items: end;
  gap: 8px;
  height: 132px;
  margin-top: 18px;
}

.sparkline span {
  display: block;
  border-radius: 999px 999px 8px 8px;
  background: linear-gradient(180deg, #b8ff63 0%, #7be46b 100%);
  box-shadow: 0 0 22px rgba(184, 255, 99, 0.18);
}

.chart-foot {
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.88rem;
}

.floating-card {
  position: absolute;
  right: -8px;
  bottom: -24px;
  width: min(390px, 92%);
  border-radius: 24px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  transform: rotate(2.2deg);
}

.floating-card img {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  flex: none;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
}

.floating-card strong,
.floating-card p {
  margin: 0;
}

.floating-card strong {
  display: block;
  font-size: 0.98rem;
  margin-bottom: 3px;
}

.floating-card p {
  font-size: 0.88rem;
  line-height: 1.55;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 24px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.75;
  margin: 14px 0 0;
}

.section-tight {
  padding-top: 12px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card,
.mode-card,
.release-card,
.step-card {
  border-radius: var(--radius-lg);
  padding: 22px;
}

.feature-card {
  min-height: 220px;
}

.icon-chip,
.mode-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(184, 255, 99, 0.12);
  color: #ddffac;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.feature-card h3,
.mode-card h3,
.step-card h3 {
  margin: 16px 0 10px;
  font-size: 1.26rem;
}

.feature-card p,
.mode-card li,
.step-card p,
.release-card li {
  line-height: 1.8;
  font-size: 0.96rem;
}

.mode-grid,
.steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.mode-pro {
  background:
    linear-gradient(180deg, rgba(184, 255, 99, 0.11), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.04);
}

.mode-lite {
  background:
    linear-gradient(180deg, rgba(255, 93, 82, 0.09), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.04);
}

.mode-card ul {
  margin: 16px 0 0;
  padding-left: 20px;
}

.release-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 20px;
  align-items: start;
}

.release-card {
  background: linear-gradient(180deg, rgba(18, 32, 22, 0.96), rgba(12, 21, 15, 0.9));
}

.release-card ul {
  margin: 18px 0 0;
  padding-left: 20px;
}

.release-card li + li {
  margin-top: 8px;
}

.step-card span {
  display: inline-block;
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 24px;
}

.footer strong {
  font-size: 1rem;
}

.footer p,
.footer-meta {
  color: var(--muted);
  margin: 8px 0 0;
  line-height: 1.7;
}

.footer-meta {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1040px) {
  .hero,
  .release-wrap,
  .feature-grid,
  .mode-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 14px;
  }

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

  .nav {
    gap: 14px;
  }

  .floating-card {
    position: relative;
    right: auto;
    bottom: auto;
    margin-top: 14px;
    transform: none;
    width: 100%;
  }
}

@media (max-width: 720px) {
  .bg-orb,
  .grain {
    display: none;
  }

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

  .nav {
    justify-content: flex-start;
  }

  .hero h1 {
    max-width: 12ch;
  }

  .hero-stats,
  .status-strip,
  .mini-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    gap: 12px;
  }

  .section {
    width: min(var(--max), calc(100vw - 24px));
    padding: 22px 0;
  }

  .device-shell,
  .feature-card,
  .mode-card,
  .release-card,
  .step-card,
  .chart-panel {
    border-radius: 22px;
  }

  .chart-foot,
  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-meta {
    justify-content: flex-start;
    align-items: flex-start;
  }
}