:root {
  --bg: #0f1419;
  --panel: #151c22;
  --panel-2: #1b242c;
  --text: #e7edf2;
  --muted: #9aabb8;
  --line: rgba(255, 255, 255, 0.08);
  --accent: #48b37f;
  --accent-2: #6ec8ff;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  --radius: 18px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(110, 200, 255, 0.10), transparent 24%),
    radial-gradient(circle at left center, rgba(72, 179, 127, 0.10), transparent 20%),
    linear-gradient(180deg, #0d1217 0%, #11171d 100%);
  line-height: 1.5;
}

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

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

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(13, 18, 23, 0.72);
  border-bottom: 1px solid var(--line);
}

.header-row {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-mark {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px rgba(72, 179, 127, 0.45);
}

.brand-text {
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav a {
  color: var(--muted);
  transition: color 0.18s ease;
}

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

.hero {
  padding: 64px 0 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  padding: 6px 10px;
  margin-bottom: 18px;
  border: 1px solid rgba(110, 200, 255, 0.22);
  border-radius: 999px;
  color: var(--accent-2);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(110, 200, 255, 0.06);
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(36px, 6vw, 58px);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.hero-text {
  max-width: 680px;
  margin: 0 0 24px;
  font-size: 18px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  transition:
    transform 0.16s ease,
    border-color 0.16s ease,
    background 0.16s ease;
}

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

.btn-primary {
  color: #08110d;
  background: linear-gradient(135deg, var(--accent), #73d49b);
  box-shadow: 0 8px 24px rgba(72, 179, 127, 0.24);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line);
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 20px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-points li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.63em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.hero-visual {
  min-height: 420px;
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01)),
    #11181f;
  box-shadow: var(--shadow);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.features,
.steps,
.links {
  padding: 28px 0 36px;
}

.section-head {
  margin-bottom: 20px;
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: 30px;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.cards,
.step-grid,
.link-cards {
  display: grid;
  gap: 18px;
}

.cards {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.step,
.link-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
  box-shadow: var(--shadow);
}

.card,
.step {
  padding: 22px;
}

.card h3,
.step h3 {
  margin: 0 0 10px;
  font-size: 19px;
}

.card p,
.step p {
  margin: 0;
  color: var(--muted);
}

.step-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step-num {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-2);
}

.link-cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.link-card {
  display: block;
  padding: 22px;
  transition:
    transform 0.16s ease,
    border-color 0.16s ease,
    background 0.16s ease;
}

.link-card:hover {
  transform: translateY(-2px);
  border-color: rgba(110, 200, 255, 0.24);
  background: linear-gradient(180deg, rgba(110,200,255,0.06), rgba(255,255,255,0.02));
}

.link-title {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
  font-weight: 700;
}

.link-desc {
  color: var(--muted);
}

.site-footer {
  margin-top: 28px;
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.18);
}

.footer-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0 32px;
}

.footer-text {
  margin: 8px 0 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a {
  color: var(--muted);
}

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

@media (max-width: 1100px) {
  .hero-grid,
  .cards,
  .step-grid,
  .link-cards {
    grid-template-columns: 1fr 1fr;
  }

  .hero-visual {
    min-height: 360px;
  }
}

@media (max-width: 720px) {
  .header-row,
  .footer-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav,
  .hero-actions,
  .footer-links {
    flex-wrap: wrap;
  }

  .hero {
    padding-top: 42px;
  }

  .hero-grid,
  .cards,
  .step-grid,
  .link-cards,
  .hero-points {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 260px;
  }

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

  .hero-text {
    font-size: 16px;
  }
}