:root {
  --blue: #0047e2;
  --blue-dark: #0036ad;
  --ink: #1a1a1a;
  --muted: #5b6270;
  --line: #e4e7ee;
  --soft: #f5f7fb;
  --radius: 14px;
  --max: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 120px; }

body {
  font-family: "Instrument Sans", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; }
.brand img { height: 40px; width: auto; }
.nav { display: flex; gap: 28px; font-size: 15px; }
.nav a { color: var(--muted); }
.nav a:hover, .nav a.active { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px; border-radius: 999px;
  font: inherit; font-size: 15px; font-weight: 500;
  border: 1.5px solid transparent; cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-outline { border-color: var(--blue); color: var(--blue); background: #fff; }
.btn-outline:hover { background: #eef3ff; }
.btn-white { background: #fff; color: var(--blue); }
.btn-white:hover { background: #eef3ff; }

/* Hero */
.hero { padding: 88px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.eyebrow { color: var(--blue); font-weight: 600; font-size: 14px; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 14px; }
h1 { font-size: 48px; line-height: 1.12; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 20px; }
.lead { font-size: 19px; color: var(--muted); max-width: 560px; margin-bottom: 32px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-card {
  background: var(--soft); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: 0 12px 40px rgba(0, 40, 140, 0.08);
}

/* Section nav */
.section-nav { position: sticky; top: 68px; z-index: 15; background: #fff; border-bottom: 1px solid var(--line); }
.section-nav .wrap { display: flex; gap: 28px; height: 52px; align-items: center; font-size: 15px; overflow-x: auto; }
.section-nav a { color: var(--muted); white-space: nowrap; padding: 14px 0; border-bottom: 2px solid transparent; }
.section-nav a:hover { color: var(--blue); border-bottom-color: var(--blue); }

/* Sections */
section.block { padding: 88px 0; }
h2 { font-size: 34px; line-height: 1.2; font-weight: 600; letter-spacing: -0.015em; margin-bottom: 14px; }
.section-intro { color: var(--muted); font-size: 18px; max-width: 680px; margin-bottom: 48px; }

.band { background: var(--blue); color: #fff; }
.band .section-intro { color: rgba(255, 255, 255, 0.85); }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.col h3 { font-size: 20px; font-weight: 600; margin: 18px 0 8px; }
.col p { font-size: 15px; }
.band .col p { color: rgba(255, 255, 255, 0.85); }
.icon { width: 36px; height: 36px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 32px;
  display: flex; flex-direction: column; transition: box-shadow 0.2s, border-color 0.2s;
}
.card:hover { border-color: #c9d6f7; box-shadow: 0 10px 30px rgba(0, 40, 140, 0.08); }
.card .icon { color: var(--blue); }
.card h3 { font-size: 21px; font-weight: 600; margin: 20px 0 10px; }
.card p { color: var(--muted); font-size: 15px; margin-bottom: 18px; }
.card ul { list-style: none; font-size: 15px; margin-bottom: 24px; }
.card li { padding: 6px 0 6px 24px; position: relative; border-top: 1px solid var(--line); }
.card li::before { content: ""; position: absolute; left: 2px; top: 14px; width: 10px; height: 6px; border-left: 2px solid var(--blue); border-bottom: 2px solid var(--blue); transform: rotate(-45deg); }
.card .link { margin-top: auto; color: var(--blue); font-weight: 500; font-size: 15px; }
.card .link:hover { text-decoration: underline; }

.soft { background: var(--soft); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.step::before {
  counter-increment: step; content: counter(step);
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 999px;
  background: #eef3ff; color: var(--blue); font-weight: 600; margin-bottom: 16px;
}
.step h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 15px; }

/* FAQ */
.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq summary { font-size: 18px; font-weight: 500; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--blue); font-size: 24px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); margin-top: 12px; }

/* CTA */
.cta .wrap { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta h2 { margin-bottom: 6px; }
.cta p { color: rgba(255, 255, 255, 0.85); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.contact-info dl { display: grid; gap: 22px; margin-top: 28px; }
.contact-info dt { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.contact-info dd { font-size: 17px; font-weight: 500; }
.contact-info dd a { color: var(--blue); }
form.contact { border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; display: grid; gap: 18px; box-shadow: 0 12px 40px rgba(0, 40, 140, 0.06); }
.field { display: grid; gap: 6px; }
.field label { font-size: 14px; font-weight: 500; }
.field input, .field select, .field textarea {
  font: inherit; font-size: 15px; padding: 12px 14px; border: 1px solid #cfd5e1; border-radius: 10px; background: #fff; color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid #b8cbfa; border-color: var(--blue); }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: 13px; color: var(--muted); }
.form-status { font-size: 14px; color: var(--blue); min-height: 1em; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; font-size: 14px; color: var(--muted); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 24px; }
.site-footer a:hover { color: var(--ink); }

@media (max-width: 900px) {
  .hero .wrap, .contact-grid { grid-template-columns: 1fr; }
  .cols-3, .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  h1 { font-size: 36px; }
  h2 { font-size: 28px; }
  .nav { display: none; }
}
@media (max-width: 560px) {
  .steps, .row-2 { grid-template-columns: 1fr; }
  section.block { padding: 64px 0; }
}