:root {
  --baby-blue: #dff4ff;
  --blue: #2c8ed6;
  --blue-dark: #174f78;
  --green: #22a36f;
  --red: #e85c5c;
  --purple: #8357d8;
  --text: #1d2b36;
  --muted: #667684;
  --line: #e7eef4;
  --white: #ffffff;
  --shadow: 0 12px 34px rgba(23, 79, 120, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

header {
  background: linear-gradient(180deg, var(--baby-blue), #ffffff);
  border-bottom: 1px solid var(--line);
}

nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--blue-dark);
}

.logo {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--blue);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 900;
}

.nav-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--blue-dark);
  text-decoration: none;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: 8px;
}

.nav-links a:hover {
  background: rgba(44, 142, 214, 0.12);
}

.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 56px 22px 44px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  align-items: center;
}

h1 {
  margin: 0 0 16px;
  color: var(--blue-dark);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 720px;
}

.hero-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: #edf9f4;
  color: var(--green);
  font-weight: 800;
  margin-bottom: 14px;
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 34px 22px 70px;
}

.grid,
.pricing-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 22px 0 34px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--white);
  box-shadow: 0 8px 24px rgba(29, 43, 54, 0.06);
}

.card.green {
  border-top: 5px solid var(--green);
}

.card.red {
  border-top: 5px solid var(--red);
}

.card.purple {
  border-top: 5px solid var(--purple);
}

h2 {
  margin: 34px 0 12px;
  color: var(--blue-dark);
  font-size: 1.55rem;
}

h3 {
  margin: 0 0 10px;
  color: var(--blue-dark);
  font-size: 1.1rem;
}

p {
  margin: 0 0 14px;
}

ul {
  margin: 0 0 18px;
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
}

.notice,
.warning {
  border-left: 5px solid var(--red);
  background: #fff5f5;
  padding: 18px;
  border-radius: 8px;
  margin: 20px 0;
}

.info-box {
  background: var(--baby-blue);
  border: 1px solid #bde8ff;
  border-radius: 8px;
  padding: 18px;
  margin: 20px 0;
}

.success {
  border-left: 5px solid var(--green);
  background: #effaf5;
  padding: 18px;
  border-radius: 8px;
  margin: 20px 0;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.table th,
.table td {
  padding: 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.table th {
  background: var(--baby-blue);
  color: var(--blue-dark);
}

.button {
  display: inline-block;
  background: var(--blue);
  color: white;
  text-decoration: none;
  font-weight: 800;
  padding: 12px 16px;
  border-radius: 8px;
  margin-top: 10px;
}

footer {
  background: #f7fbfe;
  border-top: 1px solid var(--line);
  padding: 26px 22px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 800px) {
  nav,
  .hero {
    grid-template-columns: 1fr;
  }

  nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .grid,
  .pricing-row {
    grid-template-columns: 1fr;
  }
}