:root {
  --bg: #f4f6f8;
  --text: #112031;
  --muted: #425466;
  --brand: #0b5ed7;
  --brand-dark: #084298;
  --surface: #ffffff;
  --line: #dce5ef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 20%, #dceaf9 0, transparent 35%),
    radial-gradient(circle at 80% 0%, #e5f6ef 0, transparent 30%),
    var(--bg);
  line-height: 1.6;
}

.container {
  width: min(1080px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand img {
  display: block;
  width: min(360px, 58vw);
  height: auto;
}

nav {
  display: flex;
  gap: 1.2rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

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

.hero {
  padding: 4.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.6rem;
  align-items: start;
}

.tag {
  display: inline-block;
  margin: 0 0 0.6rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.86rem;
  color: var(--brand-dark);
  background: #dce8ff;
}

h1 {
  margin: 0 0 0.9rem;
  line-height: 1.15;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

h2 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.4rem, 2.2vw, 2rem);
}

.hero-card {
  background: linear-gradient(160deg, #0b5ed7, #0d3f8f);
  color: #fff;
  border-radius: 16px;
  padding: 1.2rem 1.35rem;
  box-shadow: 0 12px 30px rgba(8, 66, 152, 0.28);
}

.hero-card ul {
  margin: 0.8rem 0 0;
  padding-left: 1.2rem;
}

.section {
  padding: 3.2rem 0;
}

.section-accent {
  background: linear-gradient(180deg, #eff4fb, #f8fbff);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.4rem;
}

.btn {
  display: inline-block;
  margin-top: 1rem;
  text-decoration: none;
  font-weight: 700;
  color: #fff;
  background: var(--brand);
  border: 2px solid var(--brand);
  padding: 0.62rem 1rem;
  border-radius: 10px;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  background: var(--brand-dark);
}

.btn-outline {
  background: transparent;
  color: var(--brand);
}

.contact {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1rem 0 1.4rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .nav-wrap {
    min-height: 60px;
  }

  .brand img {
    width: min(260px, 62vw);
  }

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

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