:root {
  color-scheme: dark;
  --bg: #0d1015;
  --panel: #171d26;
  --accent: #30d1b5;
  --accent-soft: #1f8e7a;
  --text: #f4f8ff;
  --text-muted: #95a3b8;
  --edge: #2f3a49;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  background: radial-gradient(circle at 20% 10%, #16293f 0%, var(--bg) 45%), var(--bg);
  color: var(--text);
}

.hero {
  position: relative;
  min-height: 78vh;
  padding: 1.5rem clamp(1rem, 3vw, 3rem) 4rem;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(48, 209, 181, 0.2), transparent 45%),
    linear-gradient(20deg, rgba(75, 105, 255, 0.25), transparent 30%);
  pointer-events: none;
}

.nav,
.hero__content,
.features,
.workflow,
.footer {
  position: relative;
  z-index: 2;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero__content {
  max-width: 740px;
  margin-top: 8rem;
}

.eyebrow {
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
}

h1 {
  margin: 0.4rem 0 0;
  font-size: clamp(2.3rem, 7vw, 5rem);
  line-height: 1.03;
}

.subtitle {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--text-muted);
  max-width: 62ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.4rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0.72rem 1.1rem;
  font-weight: 700;
  color: #07221d;
  background: var(--accent);
  text-decoration: none;
  transition: transform 0.15s ease;
}

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

.button--ghost {
  color: var(--text);
  background: transparent;
  border-color: var(--edge);
}

.features,
.workflow {
  padding: 0 clamp(1rem, 3vw, 3rem);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: -2rem;
}

.card {
  background: rgba(23, 29, 38, 0.75);
  border: 1px solid var(--edge);
  border-radius: 16px;
  padding: 1rem;
  backdrop-filter: blur(8px);
}

.card h2 {
  margin-top: 0;
}

.card p,
.workflow ol {
  color: var(--text-muted);
}

.workflow {
  margin-top: 2.2rem;
}

.footer {
  padding: 2rem 1rem 2.6rem;
  text-align: center;
  color: var(--text-muted);
}