:root {
  --blue-900: #0b2c5c;
  --blue-700: #14509a;
  --blue-600: #1a63c4;
  --blue-500: #2f7fe0;
  --teal-500: #14b8a6;
  --ink: #14213d;
  --ink-soft: #4b5a75;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --border: #e2e8f0;
  --radius: 14px;
  --shadow: 0 10px 30px -12px rgba(11, 44, 92, 0.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Manrope', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 12px; font-weight: 800; }
p { margin: 0 0 12px; color: var(--ink-soft); }
a { text-decoration: none; color: inherit; }
ul { padding: 0; margin: 0; list-style: none; }

.section-title {
  font-size: clamp(22px, 3vw, 32px);
  text-align: center;
  color: var(--blue-900);
  margin-bottom: 40px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 20px;
}
.logo {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.5px;
  color: var(--blue-900);
  white-space: nowrap;
}
.logo span { color: var(--teal-500); }
.nav {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}
.nav a {
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  transition: color .2s;
}
.nav a:hover { color: var(--blue-600); }
.phone-link {
  font-weight: 700;
  color: var(--blue-700);
  white-space: nowrap;
}
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.burger span {
  width: 24px;
  height: 2px;
  background: var(--ink);
  display: block;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 15px 32px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  transition: transform .15s, box-shadow .15s, background .15s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue-600), var(--teal-500));
  color: #fff;
  box-shadow: 0 8px 24px -8px rgba(26, 99, 196, 0.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px -8px rgba(26, 99, 196, 0.6); }
.btn-outline {
  background: #fff;
  color: var(--blue-700);
  border: 2px solid var(--blue-600);
}
.btn-outline:hover { background: var(--blue-600); color: #fff; }

/* Hero */
.hero {
  background:
    radial-gradient(circle at 15% 20%, rgba(20,184,166,0.10), transparent 45%),
    radial-gradient(circle at 85% 0%, rgba(26,99,196,0.12), transparent 50%),
    var(--bg-soft);
  padding: 100px 0 90px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  color: var(--blue-900);
}
.hero-sub {
  max-width: 620px;
  margin: 0 auto 32px;
  font-size: 18px;
}

/* Advantages */
.advantages { padding: 90px 0; }
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.card-icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 17px; color: var(--ink); }
.card p { font-size: 14.5px; margin: 0; }

/* Pricing */
.pricing {
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  color: #fff;
  padding: 80px 0;
  text-align: center;
}
.pricing .section-title { color: #fff; }
.price-tag {
  font-size: clamp(48px, 8vw, 84px);
  font-weight: 800;
  margin-bottom: 28px;
}
.price-tag span { font-size: 0.4em; font-weight: 700; color: var(--teal-500); }
.pricing .btn-outline { background: #fff; }

/* Partners */
.partners { padding: 90px 0; background: var(--bg-soft); }
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.partner-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  font-weight: 600;
  color: var(--blue-900);
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 96px;
}

/* Contacts */
.contacts { padding: 90px 0; }
.contacts-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contacts-brand {
  font-weight: 800;
  font-size: 22px;
  color: var(--blue-900);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.contacts-list li { margin-bottom: 12px; color: var(--ink-soft); }
.contacts-list a { color: var(--blue-600); font-weight: 600; }

.contact-form {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-form h3 { color: var(--blue-900); }
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 15px;
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--blue-500);
}
.contact-form .btn { border: none; cursor: pointer; }
.form-note { font-size: 14px; color: var(--teal-500); font-weight: 600; min-height: 20px; margin: 0; }

/* Footer */
.site-footer {
  background: var(--blue-900);
  color: rgba(255,255,255,0.7);
  padding: 24px 0;
  text-align: center;
  font-size: 14px;
}

/* Responsive */
@media (max-width: 860px) {
  .nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 16px;
  }
  .nav.open { display: flex; }
  .burger { display: flex; }
  .contacts-inner { grid-template-columns: 1fr; }
}