:root {
  color-scheme: dark;
  --bg: #080a09;
  --panel: #111512;
  --panel-2: #171b18;
  --text: #f4f0e7;
  --muted: #b7b2a7;
  --line: rgba(244, 240, 231, 0.16);
  --gold: #d6b25e;
  --green: #a4ff2f;
  --red: #d8463f;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: linear-gradient(180deg, rgba(8, 10, 9, 0.86), rgba(8, 10, 9, 0));
}

.brand,
nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0;
}

.mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(214, 178, 94, 0.72);
  color: var(--gold);
  clip-path: polygon(50% 0, 100% 24%, 88% 100%, 12% 100%, 0 24%);
}

nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

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

.hero {
  position: relative;
  min-height: 92vh;
  overflow: hidden;
}

.hero > img {
  width: 100%;
  height: 100%;
  min-height: 92vh;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 10, 9, 0.92), rgba(8, 10, 9, 0.34) 50%, rgba(8, 10, 9, 0.1)),
    linear-gradient(0deg, var(--bg), rgba(8, 10, 9, 0) 34%);
}

.hero-copy {
  position: absolute;
  left: clamp(18px, 6vw, 84px);
  bottom: clamp(42px, 10vh, 108px);
  width: min(720px, calc(100% - 36px));
}

.eyebrow,
.type {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 690px;
  margin-bottom: 20px;
  font-size: clamp(48px, 7vw, 96px);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
}

h3 {
  margin-bottom: 10px;
  font-size: 24px;
}

p {
  color: var(--muted);
  line-height: 1.65;
}

.hero-copy p:not(.eyebrow) {
  max-width: 640px;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 18px;
  background: rgba(255, 255, 255, 0.06);
  font-weight: 760;
}

.button.primary {
  border-color: rgba(164, 255, 47, 0.5);
  background: var(--green);
  color: #10140e;
}

.section {
  padding: clamp(56px, 8vw, 110px) clamp(18px, 5vw, 72px);
}

.section-head {
  max-width: 820px;
  margin-bottom: 30px;
}

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

.model-card,
.concept-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow);
}

.model-card {
  display: flex;
  min-height: 430px;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
}

dl {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
}

dl div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

dt {
  color: var(--muted);
}

dd {
  margin: 0;
  color: var(--text);
  font-weight: 800;
  text-align: right;
}

.tech {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  background: #0c100e;
}

.tech-image img,
.concept-layout > img {
  width: 100%;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

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

.feature-list article {
  border-left: 3px solid var(--gold);
  padding-left: 18px;
}

.spec-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding-top: 0;
  padding-bottom: 0;
  background: var(--line);
}

.spec-strip div {
  min-height: 150px;
  padding: 28px;
  background: var(--panel);
}

.spec-strip strong {
  display: block;
  margin-bottom: 10px;
  color: var(--green);
  font-size: 32px;
}

.spec-strip span {
  color: var(--muted);
}

.concept-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 460px);
  gap: 22px;
  align-items: stretch;
}

.concept-list {
  display: grid;
  gap: 14px;
}

.concept-list article {
  padding: 22px;
}

.concept-list span {
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

footer {
  border-top: 1px solid var(--line);
  padding: 24px clamp(18px, 5vw, 72px) 36px;
  background: #050605;
}

footer p {
  max-width: 980px;
  margin: 0;
  font-size: 13px;
}

@media (max-width: 860px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  nav {
    gap: 10px;
  }

  .brand span:last-child {
    display: none;
  }

  .hero {
    min-height: 780px;
  }

  .hero > img {
    min-height: 780px;
    object-position: 62% center;
  }

  .hero-shade {
    background:
      linear-gradient(0deg, var(--bg), rgba(8, 10, 9, 0.04) 42%),
      linear-gradient(90deg, rgba(8, 10, 9, 0.9), rgba(8, 10, 9, 0.34));
  }

  h1 {
    font-size: 48px;
  }

  .model-grid,
  .tech,
  .spec-strip,
  .concept-layout {
    grid-template-columns: 1fr;
  }

  .model-card {
    min-height: 0;
  }

  .spec-strip div {
    min-height: 120px;
  }
}