:root {
  color-scheme: dark;
  --ink: #f4f7f5;
  --muted: #9ba6a8;
  --paper: #070808;
  --panel: #101315;
  --panel-strong: #15191c;
  --line: rgba(244, 247, 245, 0.12);
  --accent: #68ff93;
  --accent-dark: #36c965;
  --amber: #d6ff68;
  --steel: #7ba7b5;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.44);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 0%, rgba(104, 255, 147, 0.08), transparent 28%),
    linear-gradient(180deg, #050606 0%, #0c0e10 45%, #070808 100%);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 52px);
  background: rgba(5, 6, 6, 0.78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand,
nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--ink);
  object-fit: cover;
}

nav {
  gap: clamp(12px, 2.3vw, 28px);
  color: #c2cbcd;
  font-size: 14px;
}

nav a {
  text-decoration: none;
}

.nav-cta {
  padding: 8px 12px;
  border: 1px solid rgba(104, 255, 147, 0.36);
  border-radius: 7px;
  color: #f4f7f5;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: #1a1a18;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 12, 12, 0.68), rgba(10, 12, 12, 0.08) 44%, rgba(10, 12, 12, 0.24)),
    linear-gradient(0deg, rgba(10, 12, 12, 0.84), rgba(10, 12, 12, 0.02) 52%);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 36px));
  padding: 52vh clamp(18px, 5vw, 70px) 70px;
  color: #fff;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: var(--accent);
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(56px, 9vw, 112px);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  max-width: 780px;
  margin-bottom: 0;
  font-size: clamp(30px, 4.2vw, 56px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 23px;
  line-height: 1.15;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 620px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(18px, 2vw, 23px);
}

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

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 7px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  color: #061008;
  box-shadow: 0 14px 34px rgba(104, 255, 147, 0.18);
}

.button.primary:hover {
  background: var(--accent-dark);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.section {
  padding: clamp(74px, 10vw, 132px) clamp(18px, 5vw, 70px);
}

.section-heading {
  margin-bottom: 36px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid article {
  position: relative;
  min-height: 250px;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.feature-grid article::before,
.firmware-grid article::before,
.app-feature-list div::before {
  content: "";
  display: block;
  width: 46px;
  height: 2px;
  margin-bottom: 18px;
  background: var(--accent);
}

.feature-kicker {
  display: inline-flex;
  margin-bottom: 46px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
}

.feature-grid p,
.workflow-list p,
.app-copy p,
.updates-panel p {
  color: var(--muted);
}

.firmware-section {
  background:
    linear-gradient(135deg, rgba(104, 255, 147, 0.08), transparent 38%),
    #0b0d0e;
  color: #f6f3ee;
}

.firmware-section .eyebrow,
.firmware-section .feature-kicker {
  color: #68ff93;
}

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

.firmware-grid article {
  position: relative;
  min-height: 248px;
  padding: 24px;
  border: 1px solid rgba(104, 255, 147, 0.2);
  border-radius: 8px;
  background: rgba(5, 7, 6, 0.82);
}

.firmware-grid p {
  color: rgba(246, 243, 238, 0.72);
}

.firmware-grid .feature-kicker {
  margin-bottom: 34px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.72fr);
  gap: clamp(34px, 6vw, 88px);
  background: #0f1214;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.workflow-list {
  display: grid;
  gap: 16px;
}

.workflow-list div {
  padding: 0 0 18px 22px;
  border-left: 3px solid var(--accent);
}

.workflow-list strong {
  display: block;
  margin-bottom: 5px;
  font-size: 18px;
}

.app-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(320px, 0.62fr);
  gap: clamp(38px, 7vw, 96px);
  align-items: center;
  background: #080a0b;
}

.app-copy p {
  max-width: 620px;
  margin: 22px 0 26px;
  font-size: 18px;
}

.app-feature-list {
  display: grid;
  gap: 12px;
}

.app-feature-list div {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
}

.app-feature-list strong {
  color: var(--ink);
  font-size: 18px;
}

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

.updates-section {
  background:
    linear-gradient(135deg, rgba(123, 167, 181, 0.12), rgba(104, 255, 147, 0.08)),
    #0d1012;
}

.updates-panel {
  max-width: 820px;
  padding: clamp(30px, 5vw, 54px);
  background: rgba(16, 19, 21, 0.82);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.updates-panel p {
  max-width: 650px;
  margin: 20px 0 28px;
  font-size: 18px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 30px clamp(18px, 5vw, 70px);
  color: #8e989a;
  border-top: 1px solid var(--line);
  background: #050606;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
  }

  nav {
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  nav a:not(.nav-cta) {
    display: none;
  }

  .hero {
    min-height: 88vh;
  }

  .hero::after {
    background:
      linear-gradient(90deg, rgba(10, 12, 12, 0.36), rgba(10, 12, 12, 0.08)),
      linear-gradient(0deg, rgba(10, 12, 12, 0.88), rgba(10, 12, 12, 0.08) 60%);
  }

  .hero-image {
    object-position: center;
  }

  .hero-overlay {
    padding-top: 52vh;
    padding-bottom: 50px;
  }

  .feature-grid,
  .firmware-grid,
  .split-section,
  .app-section {
    grid-template-columns: 1fr;
  }

  .feature-grid article {
    min-height: 0;
  }

  .feature-kicker {
    margin-bottom: 24px;
  }

  .site-footer {
    flex-direction: column;
  }
}