:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --bg-dark: #0f172a;
  --text: #111827;
  --muted: #5b6474;
  --line: #dde3ee;
  --primary: #0f172a;
  --accent: #2d5bff;
  --white: #ffffff;
  --radius: 18px;
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.container { width: min(1120px, 92%); margin: 0 auto; }
.section { padding: 88px 0; }
.narrow { width: min(780px, 100%); }
.eyebrow {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(45, 91, 255, 0.08);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}
h1, h2, h3, h4 { color: var(--text); line-height: 1.15; }
h1 { font-size: clamp(2.4rem, 5vw, 4.3rem); margin-bottom: 22px; }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); margin-bottom: 16px; }
h3 { font-size: 1.25rem; margin-bottom: 12px; }
p { color: var(--muted); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 12px;
  font-weight: 700;
  transition: 0.25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-secondary { border: 1px solid var(--line); color: var(--text); background: var(--white); }
.btn-light { background: var(--white); color: var(--text); }
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.card, .panel, .panel-lite {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}
.card { padding: 28px; }
.panel { padding: 34px; }
.panel-lite { padding: 28px; }
.two-col, .content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}
.light-bg { background: var(--bg-soft); }
.page-hero {
  padding: 110px 0 58px;
  background: linear-gradient(180deg, #f7f9ff 0%, #ffffff 100%);
}
.cards-vertical { display: grid; gap: 22px; }
.service-item h2 { margin-bottom: 10px; }
.active { color: var(--accent) !important; }

@media (max-width: 900px) {
  .card-grid, .two-col, .content-grid { grid-template-columns: 1fr; }
}