/* СВОД — лендинг (datasved.ru) */
:root {
  --teal: #2c6e6b;
  --teal-dark: #1f4e4c;
  --teal-light: #e8f2f1;
  --ink: #22302f;
  --muted: #5d6f6e;
  --bg: #ffffff;
  --bg-alt: #f4f8f7;
  --border: #dbe7e6;
  --radius: 14px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

code {
  font-family: "SF Mono", Consolas, monospace;
  font-size: .9em;
  background: var(--teal-light);
  color: var(--teal-dark);
  padding: 1px 6px;
  border-radius: 6px;
}

.container { max-width: 1060px; margin: 0 auto; padding: 0 20px; }

/* ── nav ── */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 12px; padding-bottom: 12px;
}
.brand { text-decoration: none; display: flex; align-items: baseline; gap: 10px; }
.brand-mark {
  font-weight: 800; font-size: 1.35rem; letter-spacing: .08em;
  color: var(--teal);
}
.brand-sub {
  font-size: .72rem; color: var(--muted); letter-spacing: .02em;
}
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a {
  text-decoration: none; color: var(--ink); font-size: .92rem;
}
.nav-links a:hover { color: var(--teal); }

/* ── buttons ── */
.btn {
  display: inline-block;
  background: var(--teal); color: #fff;
  padding: 12px 28px; border-radius: 999px;
  text-decoration: none; font-weight: 600; font-size: .98rem;
  border: 2px solid var(--teal);
  transition: background .15s, color .15s;
}
.btn:hover { background: var(--teal-dark); }
.btn-ghost { background: transparent; color: var(--teal); }
.btn-ghost:hover { background: var(--teal-light); color: var(--teal-dark); }
.btn-small { padding: 8px 18px; font-size: .88rem; }
.btn-light { background: #fff; color: var(--teal-dark); border-color: #fff; }
.btn-light:hover { background: var(--teal-light); }
.btn-outline { background: transparent; color: #fff; border-color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.15); color: #fff; }

/* ── hero ── */
.hero {
  background:
    radial-gradient(1000px 400px at 85% -50px, rgba(44,110,107,.14), transparent),
    radial-gradient(700px 400px at -10% 10%, rgba(44,110,107,.08), transparent),
    var(--bg);
  padding: 88px 0 64px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.7rem, 4.2vw, 2.7rem);
  line-height: 1.18;
  font-weight: 800;
  color: var(--teal-dark);
  max-width: 780px; margin: 0 auto 18px;
}
.lead {
  font-size: 1.05rem; color: var(--muted);
  max-width: 720px; margin: 0 auto 30px;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.demo-hint { margin: 0 0 80px; font-size: .88rem; color: var(--muted); }
.demo-hint-light { margin: 32px 0 0; color: rgba(255,255,255,.75); }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 32px; }

.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px; max-width: 860px; margin: 0 auto;
}
.stat {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 14px;
  box-shadow: 0 1px 3px rgba(31,78,76,.05);
}
.stat b { display: block; font-size: 1.45rem; color: var(--teal); }
.stat span { font-size: .85rem; color: var(--muted); }

/* ── sections ── */
.section { padding: 68px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 {
  text-align: center; font-size: 1.8rem; color: var(--teal-dark); font-weight: 800;
  margin-bottom: 8px;
}
.section-sub {
  text-align: center; color: var(--muted); margin-bottom: 40px; font-size: 1rem;
}

/* ── cards ── */
.grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
}
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 1px 3px rgba(31,78,76,.05);
}
.card-icon { font-size: 1.7rem; margin-bottom: 10px; }
.card h3 { font-size: 1.05rem; margin-bottom: 8px; color: var(--teal-dark); }
.card p { font-size: .92rem; color: var(--muted); }
.card-plain { text-align: center; }

/* ── steps ── */
.steps {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px;
}
.step {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 20px; position: relative;
}
.step-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--teal); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem; margin-bottom: 14px;
}
.step h3 { font-size: 1rem; color: var(--teal-dark); margin-bottom: 6px; }
.step p { font-size: .9rem; color: var(--muted); }

/* ── CTA / contacts ── */
.section-cta {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  color: #fff; text-align: center;
}
.section-cta h2 { color: #fff; }
.section-cta .section-sub { color: rgba(255,255,255,.8); }
.contacts-line { font-size: 1.05rem; }
.contacts-value { margin-bottom: 26px; }
.contacts-value a { color: #fff; font-weight: 700; }

/* ── footer ── */
.footer { padding: 26px 0; border-top: 1px solid var(--border); }
.footer-inner {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  color: var(--muted); font-size: .88rem;
}
.footer .brand-mark { font-size: 1rem; }

@media (max-width: 720px) {
  .brand-sub { display: none; }
  .nav-links { gap: 14px; }
  .nav-links a:not(.btn) { display: none; }
  .hero { padding: 56px 0 44px; }
}