:root {
  color-scheme: dark;
  --bg: #06120f;
  --panel: rgba(7, 19, 18, 0.84);
  --panel-strong: rgba(4, 11, 12, 0.94);
  --text: #f3fff8;
  --muted: #a3c4b5;
  --line: rgba(89, 238, 147, 0.24);
  --green: #48ff88;
  --blue: #2da8ff;
  --yellow: #ffd35b;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 75% 12%, rgba(45, 168, 255, 0.16), transparent 34rem),
    radial-gradient(circle at 18% 20%, rgba(72, 255, 136, 0.14), transparent 28rem),
    linear-gradient(180deg, #08110f 0%, var(--bg) 60%, #020504 100%);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  background: rgba(2, 6, 6, 0.82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  font-size: 1.7rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0;
}

nav {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  color: var(--muted);
  font-size: 0.95rem;
}

nav a {
  text-decoration: none;
}

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

main {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1.12fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  min-height: calc(100vh - 72px);
  padding: 3rem 0;
}

.hero-copy {
  max-width: 36rem;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 1rem;
  font-size: clamp(2.5rem, 6vw, 5.8rem);
  line-height: 0.94;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 3.5vw, 3.4rem);
  line-height: 1;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.2rem;
}

p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.6rem;
}

.button,
button {
  display: inline-flex;
  min-height: 2.8rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
  font: inherit;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}

.button:hover,
button:hover {
  border-color: rgba(72, 255, 136, 0.7);
}

.button.primary,
button {
  background: linear-gradient(135deg, rgba(72, 255, 136, 0.95), rgba(45, 168, 255, 0.9));
  color: #02110a;
}

.hero-image {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 1.4rem 4rem rgba(0, 0, 0, 0.46);
}

.section {
  padding: clamp(3rem, 7vw, 5.5rem) 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 44rem;
  margin-bottom: 1.5rem;
}

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

.support-grid article,
.report-card,
.contact {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.support-grid article {
  padding: 1.25rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(340px, 1.14fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
}

.report-card {
  display: grid;
  gap: 0.95rem;
  padding: 1.25rem;
}

label {
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  font-weight: 650;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font: inherit;
  padding: 0.72rem 0.8rem;
}

textarea {
  resize: vertical;
}

.demo-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.demo-list li {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel-strong);
  padding: 1rem;
  color: var(--muted);
}

.contact {
  padding: clamp(1.5rem, 4vw, 2.4rem);
}

footer {
  display: flex;
  justify-content: space-between;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 850px) {
  .site-header,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .split,
  .support-grid,
  .demo-list {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }
}