:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-elevated: #0d1b2d;
  --surface: rgba(13, 27, 45, 0.9);
  --surface-strong: #11233a;
  --border: rgba(148, 163, 184, 0.18);
  --text: #f8fafc;
  --text-muted: #9fb0c7;
  --primary: #31d0aa;
  --primary-strong: #24b493;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(49, 208, 170, 0.14), transparent 24%),
    linear-gradient(180deg, #05101c 0%, var(--bg) 100%);
}

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

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

.page-shell {
  min-height: 100vh;
}

.topbar,
.hero,
.metrics-band,
.section,
.footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary) 0%, #6ee7b7 100%);
  color: #062b22;
  font-size: 14px;
  font-weight: 800;
}

.brand-name,
.nav a,
.button,
.workflow-step {
  white-space: nowrap;
}

.brand-name {
  font-size: 15px;
  font-weight: 700;
}

.nav {
  display: flex;
  gap: 20px;
  color: var(--text-muted);
  font-size: 14px;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  gap: 32px;
  align-items: center;
  padding: 24px 0 48px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero h1,
.section h2 {
  margin: 0;
  line-height: 1.08;
}

.hero h1 {
  max-width: 640px;
  font-size: clamp(36px, 4vw, 60px);
}

.hero-text {
  max-width: 620px;
  margin: 20px 0 0;
  color: var(--text-muted);
  font-size: 17px;
  line-height: 1.7;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
}

.button-primary {
  background: var(--primary);
  color: #062b22;
}

.button-primary:hover {
  background: var(--primary-strong);
}

.button-secondary {
  border-color: var(--border);
  background: rgba(15, 23, 42, 0.7);
}

.hero-points {
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  color: var(--text-muted);
  font-size: 14px;
}

.hero-points li::before {
  content: "•";
  color: var(--primary);
  margin-right: 10px;
}

.hero-media {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(17, 35, 58, 0.94), rgba(8, 19, 31, 0.98));
  box-shadow: var(--shadow);
}

.hero-media img {
  width: 100%;
  border-radius: 8px;
}

.metrics-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding-bottom: 56px;
}

.metric-card,
.feature-card,
.workflow-item,
.security-panel {
  border: 1px solid var(--border);
  background: var(--surface);
}

.metric-card {
  display: grid;
  gap: 8px;
  padding: 22px;
  border-radius: 10px;
}

.metric-value {
  font-size: 28px;
  font-weight: 800;
}

.metric-label {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.section {
  padding: 28px 0 56px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 24px;
}

.section h2 {
  font-size: clamp(28px, 3vw, 42px);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  padding: 22px;
  border-radius: 10px;
}

.feature-card h3,
.workflow-item h3,
.security-panel h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.feature-card p,
.workflow-item p,
.detail-list {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

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

.workflow-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  padding: 22px;
  border-radius: 10px;
}

.workflow-step {
  display: inline-flex;
  align-items: flex-start;
  color: var(--primary);
  font-size: 28px;
  font-weight: 800;
}

.security-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding: 24px;
  border-radius: 10px;
}

.detail-list {
  padding-left: 18px;
}

.detail-list li + li {
  margin-top: 8px;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0 32px;
  color: var(--text-muted);
  font-size: 13px;
}

@media (max-width: 980px) {
  .hero,
  .feature-grid,
  .metrics-band,
  .security-panel {
    grid-template-columns: 1fr;
  }

  .topbar,
  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .topbar,
  .hero,
  .metrics-band,
  .section,
  .footer {
    width: min(100% - 24px, 1180px);
  }

  .hero {
    padding-top: 8px;
    gap: 24px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .workflow-item {
    grid-template-columns: 1fr;
  }

  .workflow-step {
    font-size: 22px;
  }
}