:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-alt: #eef3fb;
  --text: #1f2a37;
  --muted: #4a5a70;
  --accent: #0a58ca;
  --accent-hover: #0849a6;
  --border: #d5deea;
  --shadow: 0 10px 25px rgba(23, 42, 79, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

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

.block {
  background: var(--surface);
  margin: 18px auto;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.block .container {
  padding: 42px 0;
}

.alt {
  background: var(--surface-alt);
}

.site-header {
  margin-top: 22px;
  background: linear-gradient(145deg, #0e3f8f, #0a58ca);
  color: #ffffff;
  border: none;
}

.site-header .label {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  margin-bottom: 12px;
  font-size: 0.9rem;
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin-top: 0;
}

h1 {
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  margin-bottom: 16px;
}

h2 {
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  margin-bottom: 16px;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

p,
li {
  font-size: 1.03rem;
  color: var(--muted);
}

.site-header .lead {
  color: #eef5ff;
  max-width: 900px;
  margin-bottom: 28px;
}

.btn {
  display: inline-block;
  text-decoration: none;
  color: #ffffff;
  background: var(--accent);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 12px 20px;
  border-radius: 10px;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease;
}

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

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

.card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
}

.benefits,
.steps {
  padding-left: 22px;
}

.benefits li,
.steps li {
  margin-bottom: 10px;
}

.details p {
  margin: 10px 0;
}

a {
  color: var(--accent);
}

.site-footer {
  margin: 24px auto 26px;
}

.site-footer .container {
  text-align: center;
  color: #5b6d86;
  font-size: 0.95rem;
  padding: 8px 0 14px;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .block .container {
    padding: 30px 0;
  }

  p,
  li {
    font-size: 1rem;
  }
}