:root {
  color-scheme: dark;
  --bg: #090b0f;
  --panel: #111820;
  --text: #f5f3ed;
  --muted: #a9b3b7;
  --line: rgba(255, 255, 255, 0.14);
  --teal: #3ec7bc;
  --copper: #d89058;
  --ink: #101319;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.5;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: linear-gradient(180deg, rgba(9, 11, 15, 0.84), rgba(9, 11, 15, 0));
}

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

.brand {
  gap: 12px;
  font-weight: 760;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.1);
  color: var(--teal);
  font-size: 17px;
}

.nav-links {
  gap: clamp(16px, 3vw, 34px);
  color: rgba(245, 243, 237, 0.8);
  font-size: 14px;
}

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

.hero {
  position: relative;
  display: grid;
  min-height: 92svh;
  overflow: hidden;
  align-items: center;
  padding: 116px clamp(20px, 5vw, 72px) 72px;
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("assets/hero.png");
  background-position: center right;
  background-size: cover;
  transform: scale(1.01);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(9, 11, 15, 0.96) 0%, rgba(9, 11, 15, 0.72) 38%, rgba(9, 11, 15, 0.08) 72%),
    linear-gradient(0deg, var(--bg) 0%, rgba(9, 11, 15, 0) 34%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(680px, 100%);
}

.eyebrow,
.section-label {
  margin: 0 0 18px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 26px;
  max-width: 720px;
  font-size: clamp(52px, 6.6vw, 86px);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 600px;
  margin-bottom: 34px;
  color: rgba(245, 243, 237, 0.82);
  font-size: clamp(17px, 2vw, 22px);
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  padding: 0 22px;
  font-weight: 720;
}

.button.primary {
  border-color: transparent;
  background: var(--text);
  color: var(--ink);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.section {
  padding: clamp(64px, 9vw, 118px) clamp(20px, 5vw, 72px);
}

.split {
  display: grid;
  grid-template-columns: minmax(220px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(34px, 6vw, 84px);
  border-top: 1px solid var(--line);
  background: #0d1117;
}

.section h2 {
  max-width: 640px;
  margin-bottom: 0;
  font-size: clamp(34px, 5vw, 70px);
  line-height: 1.04;
  letter-spacing: 0;
}

.feature-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.feature {
  min-height: 190px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--panel);
}

.feature-index {
  color: var(--copper);
  font-size: 13px;
  font-weight: 800;
}

.feature h3 {
  margin: 34px 0 12px;
  font-size: 24px;
}

.feature p {
  margin-bottom: 0;
  color: var(--muted);
}

.statement {
  background: #f0ede4;
  color: #111820;
}

.statement .section-label {
  color: #7a4d2f;
}

blockquote {
  width: min(980px, 100%);
  margin: 0;
  font-size: clamp(34px, 6vw, 76px);
  font-weight: 780;
  line-height: 1.08;
  letter-spacing: 0;
}

.contact {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: #0a0d11;
}

.contact-link {
  color: var(--copper);
  font-size: clamp(22px, 4vw, 46px);
  font-weight: 760;
  overflow-wrap: anywhere;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: rgba(245, 243, 237, 0.58);
  font-size: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 780px) {
  .site-header {
    min-height: 64px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 88svh;
    padding-top: 96px;
  }

  .hero-media {
    background-position: 62% center;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(9, 11, 15, 0.97) 0%, rgba(9, 11, 15, 0.72) 58%, rgba(9, 11, 15, 0.18) 100%),
      linear-gradient(0deg, var(--bg) 0%, rgba(9, 11, 15, 0) 42%);
  }

  h1 {
    font-size: clamp(44px, 14vw, 64px);
  }

  .split,
  .contact {
    grid-template-columns: 1fr;
    display: grid;
  }

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