:root {
  --bg: #0b1118;
  --bg-soft: #121a24;
  --card: rgba(255, 255, 255, 0.06);
  --card-hover: rgba(255, 255, 255, 0.1);
  --text: #f5f7fa;
  --muted: #a8b3c2;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #4fd1c5;
  --accent-dark: #2c7a7b;
  --radius: 20px;
  --max-width: 1200px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(79, 209, 197, 0.12), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, Arial, sans-serif;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(11, 17, 24, 0.85);
  border-bottom: 1px solid var(--line);
}

.nav {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), #7dd3fc);
  color: #081018;
  font-weight: 900;
}

.nav-links {
  display: flex;
  gap: 20px;
}

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

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

.hero {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  min-height: 70vh;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  padding: 80px 0;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 5rem);
  line-height: 1.05;
  margin: 16px 0;
}

.hero-copy {
  color: var(--muted);
  font-size: 1.15rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), #7dd3fc);
  color: #071018;
}

.button.secondary {
  border: 1px solid var(--line);
  background: var(--card);
}

.hero-card {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow);
}

.hero-card ul {
  margin: 16px 0 0;
  padding-left: 18px;
}

.trust-row {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 80px 0;
}

.section-head {
  margin-bottom: 30px;
}

.section-head h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 12px;
}

.section-head p {
  color: var(--muted);
  max-width: 700px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: 0.2s ease;
}

.card:hover {
  background: var(--card-hover);
  transform: translateY(-4px);
}

.card h3 {
  margin: 12px 0;
}

.card p {
  color: var(--muted);
}

.icon {
  font-size: 2rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.feature-list {
  display: grid;
  gap: 20px;
}

.feature-list div {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 22px;
  border-radius: var(--radius);
}

.feature-list p {
  color: var(--muted);
  margin-top: 8px;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.review-grid blockquote {
  margin: 0;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.review-grid cite {
  display: block;
  margin-top: 16px;
  color: var(--accent);
  font-style: normal;
}

.about {
  text-align: center;
}

.about p:last-child {
  max-width: 750px;
  margin: 20px auto 0;
  color: var(--muted);
}

.contact {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  align-items: center;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
}

.site-footer a {
  display: inline-block;
  margin-top: 10px;
  color: var(--accent);
}

@media (max-width: 1000px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .review-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 700px) {
  .nav {
    flex-direction: column;
    gap: 16px;
    padding: 16px 0;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 60px 0;
  }
}