:root {
  --bg: #080a0d;
  --surface: #10151a;
  --surface-2: #151c22;
  --line: rgba(255, 255, 255, 0.12);
  --text: #f4f7f8;
  --muted: #aeb8bd;
  --soft: #d9e1e4;
  --teal: #42d7c7;
  --teal-dark: #123d3d;
  --amber: #dba85b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  align-items: center;
  backdrop-filter: blur(18px);
  background: rgba(8, 10, 13, 0.74);
  border-bottom: 1px solid transparent;
  display: flex;
  height: 76px;
  justify-content: space-between;
  left: 0;
  padding: 0 clamp(20px, 5vw, 72px);
  position: fixed;
  right: 0;
  top: 0;
  transition: border-color 180ms ease, background 180ms ease;
  z-index: 20;
}

.site-header.is-scrolled {
  background: rgba(8, 10, 13, 0.9);
  border-bottom-color: var(--line);
}

.brand {
  align-items: center;
  display: inline-flex;
  font-size: 0.94rem;
  font-weight: 700;
  gap: 12px;
}

.brand-mark {
  align-items: center;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  display: inline-flex;
  height: 34px;
  justify-content: center;
  overflow: hidden;
  width: 34px;
}

.brand-mark img {
  height: 27px;
  object-fit: contain;
  width: 27px;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: 28px;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  transition: color 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.site-nav .nav-cta {
  background: rgba(66, 215, 199, 0.12);
  border: 1px solid rgba(66, 215, 199, 0.38);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 15px;
}

.hero {
  min-height: 92vh;
  overflow: hidden;
  padding: 156px clamp(20px, 5vw, 72px) 64px;
  position: relative;
}

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

.hero-media img {
  height: 100%;
  object-fit: cover;
  object-position: center;
  width: 100%;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(8, 10, 13, 0.98) 0%, rgba(8, 10, 13, 0.82) 34%, rgba(8, 10, 13, 0.3) 72%),
    linear-gradient(180deg, rgba(8, 10, 13, 0.45) 0%, rgba(8, 10, 13, 0.15) 55%, #080a0d 100%);
}

.hero-content {
  max-width: 790px;
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-kicker {
  color: var(--teal);
  display: inline-flex;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(3.4rem, 8vw, 7.8rem);
  letter-spacing: 0;
  line-height: 0.9;
  margin-bottom: 26px;
}

h2 {
  font-size: clamp(2rem, 4vw, 4rem);
  letter-spacing: 0;
  line-height: 1.02;
  margin-bottom: 22px;
}

h3 {
  font-size: 1.1rem;
  line-height: 1.25;
  margin-bottom: 12px;
}

.hero-subtitle {
  color: var(--soft);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  max-width: 660px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 54px;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--teal);
  color: #041113;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--line);
  color: var(--text);
}

.hero-stats {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 720px;
  padding-top: 24px;
}

.hero-stats strong {
  display: block;
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  line-height: 1;
}

.hero-stats span {
  color: var(--muted);
  display: block;
  font-size: 0.88rem;
  margin-top: 8px;
}

.section {
  padding: 104px clamp(20px, 5vw, 72px);
}

.intro {
  background: var(--bg);
}

.intro-grid {
  display: grid;
  gap: clamp(32px, 7vw, 86px);
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  margin-top: 18px;
}

.intro-copy {
  color: var(--soft);
  font-size: 1.06rem;
}

.band {
  background: #0c1014;
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 780px;
}

.section-heading p {
  color: var(--muted);
  font-size: 1.04rem;
}

.feature-grid,
.metric-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 42px;
}

.feature-card,
.metric {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  min-height: 220px;
  padding: 26px;
}

.feature-number {
  color: var(--amber);
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
  margin-bottom: 42px;
}

.feature-card p,
.system-list p,
.timeline p,
.metric p {
  color: var(--muted);
  margin-bottom: 0;
}

.split {
  display: grid;
  gap: clamp(34px, 7vw, 92px);
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1fr);
}

.sticky-heading {
  align-self: start;
  position: sticky;
  top: 112px;
}

.system-list,
.timeline {
  display: grid;
  gap: 14px;
}

.system-list article,
.timeline article {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
}

.metrics {
  background:
    linear-gradient(180deg, rgba(66, 215, 199, 0.08), rgba(66, 215, 199, 0)),
    var(--surface-2);
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

.metric {
  min-height: 184px;
}

.metric span,
.timeline span {
  color: var(--amber);
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.metric strong {
  display: block;
  font-size: clamp(1.7rem, 3vw, 2.8rem);
  line-height: 1;
  margin-bottom: 12px;
}

.story {
  background: var(--bg);
}

.contact-section {
  background: #eef3f2;
  color: #081013;
  display: grid;
  gap: clamp(32px, 7vw, 86px);
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.72fr);
  padding: 104px clamp(20px, 5vw, 72px);
}

.contact-section .section-kicker {
  color: #08796f;
}

.contact-copy p {
  color: #405056;
  font-size: 1.08rem;
  max-width: 650px;
}

.contact-note {
  border-top: 1px solid rgba(8, 16, 19, 0.18);
  display: grid;
  gap: 4px;
  margin-top: 38px;
  padding-top: 22px;
}

.contact-note span {
  color: #516167;
}

.contact-form {
  background: #ffffff;
  border: 1px solid rgba(8, 16, 19, 0.12);
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(8, 16, 19, 0.14);
  display: grid;
  gap: 18px;
  padding: clamp(22px, 4vw, 34px);
}

.botcheck {
  display: none;
}

.contact-form label {
  display: grid;
  gap: 8px;
}

.contact-form label span {
  color: #243137;
  font-size: 0.86rem;
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  background: #f6f8f8;
  border: 1px solid rgba(8, 16, 19, 0.16);
  border-radius: 8px;
  color: #081013;
  outline: none;
  padding: 14px 15px;
  resize: vertical;
  width: 100%;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #08796f;
  box-shadow: 0 0 0 4px rgba(8, 121, 111, 0.12);
}

.contact-form .button-primary {
  border: 0;
  width: 100%;
}

.form-status {
  color: #4f6066;
  font-size: 0.9rem;
  margin: 0;
  min-height: 22px;
}

.site-footer {
  align-items: center;
  background: var(--bg);
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  font-size: 0.9rem;
  justify-content: space-between;
  padding: 28px clamp(20px, 5vw, 72px);
}

.site-footer a {
  color: var(--text);
  font-weight: 700;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
    height: auto;
    padding-bottom: 16px;
    padding-top: 16px;
  }

  .site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 18px;
    justify-content: flex-start;
  }

  .site-nav a {
    font-size: 0.86rem;
  }

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

  .sticky-heading {
    position: static;
  }

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

@media (max-width: 640px) {
  .site-header {
    position: absolute;
  }

  .brand span:last-child {
    max-width: 150px;
  }

  .hero {
    min-height: 90vh;
    padding-top: 128px;
  }

  h1 {
    font-size: 3.45rem;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(8, 10, 13, 0.96), rgba(8, 10, 13, 0.74)),
      linear-gradient(180deg, rgba(8, 10, 13, 0.1), #080a0d 100%);
  }

  .hero-stats,
  .feature-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: 18px;
  }

  .feature-card,
  .metric,
  .system-list article,
  .timeline article {
    min-height: auto;
    padding: 22px;
  }

  .section,
  .contact-section {
    padding-bottom: 72px;
    padding-top: 72px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}