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

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", "Arial", sans-serif;
  color: #0f172a;
  background: #f8fafc;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  background: rgba(248, 250, 252, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e2e8f0;
  z-index: 10;
}

.header__wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 16px;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.4px;
}

.nav {
  display: flex;
  gap: 20px;
  font-size: 15px;
}

.nav a {
  color: #334155;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn--primary {
  background: #2563eb;
  color: #fff;
  border-color: #2563eb;
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.2);
}

.btn--primary:hover {
  background: #1d4ed8;
}

.btn--ghost {
  background: #fff;
  border-color: #cbd5f5;
  color: #1e293b;
}

.btn--ghost:hover {
  border-color: #94a3b8;
}

.btn--block {
  width: 100%;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: #dbeafe;
  color: #1d4ed8;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
}

.hero {
  padding: 72px 0 64px;
  background:
    radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.18), transparent 55%),
    radial-gradient(circle at 90% 10%, rgba(14, 165, 233, 0.2), transparent 50%),
    linear-gradient(180deg, #f8fbff 0%, #f8fafc 80%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.hero__content h1 {
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.15;
  margin: 16px 0;
}

.lead {
  font-size: 18px;
  color: #475569;
}

.hero__actions {
  display: flex;
  gap: 16px;
  margin: 24px 0;
  flex-wrap: wrap;
}

.hero__bullets {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  color: #475569;
}

.hero__bullets li {
  padding-left: 22px;
  margin-bottom: 8px;
  position: relative;
}

.hero__bullets li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: #2563eb;
  font-weight: 700;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  font-size: 14px;
  color: #475569;
}

.hero__stats strong {
  display: block;
  font-size: 20px;
  color: #0f172a;
}

.hero__card {
  background: #fff;
  padding: 28px;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 20px 0;
  color: #475569;
}

.checklist li {
  margin-bottom: 10px;
  padding-left: 26px;
  position: relative;
}

.checklist li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: #22c55e;
}

.hint {
  display: block;
  font-size: 12px;
  color: #64748b;
  margin-top: 12px;
}

.section {
  padding: 72px 0;
}

.section--accent {
  background: linear-gradient(135deg, #0f172a 0%, #111827 45%, #0b1220 100%);
  color: #e2e8f0;
}

.section--accent .card,
.section--accent .price,
.section--accent .form {
  background: #111827;
  color: #e2e8f0;
  border-color: #1f2937;
}

.section--light {
  background: #f1f5f9;
}

.section__head {
  max-width: 720px;
  margin-bottom: 40px;
}

.section__head--compact {
  margin: 32px 0 20px;
}

.section__head h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3vw, 36px);
}

.grid {
  display: grid;
  gap: 24px;
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: #fff;
  padding: 24px;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.08);
}

.card--case {
  border-left: 4px solid #2563eb;
}

.tag {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  background: #e0f2fe;
  color: #0369a1;
  padding: 4px 10px;
  border-radius: 999px;
}

.highlights {
  display: grid;
  gap: 32px;
  align-items: center;
  grid-template-columns: 1fr 1.4fr;
}

.highlight {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(148, 163, 184, 0.2);
  padding: 20px;
  border-radius: 14px;
}

.catalog {
  margin-top: 32px;
}

.catalog__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.catalog__card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 20px;
}

.list {
  margin: 12px 0 0;
  padding-left: 18px;
  color: #475569;
}

.list li {
  margin-bottom: 8px;
}

.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: #eef2ff;
  color: #3730a3;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid #c7d2fe;
}

.pricing .price {
  position: relative;
}

.price__value {
  font-size: 24px;
  font-weight: 700;
  margin: 12px 0 16px;
}

.price__label {
  position: absolute;
  top: -12px;
  right: 16px;
  background: #22c55e;
  color: #fff;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.price--popular {
  border: 2px solid #2563eb;
}

.price ul {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  color: #475569;
}

.price ul li {
  padding: 6px 0;
}

.price-grid .price-card {
  display: grid;
  gap: 8px;
}

.price-card__desc {
  margin: 0;
  color: #475569;
  font-size: 14px;
}

.price-card__value {
  font-size: 24px;
  font-weight: 700;
  color: #0f172a;
  margin: 4px 0 0;
}

.price-card__note {
  font-size: 13px;
  color: #64748b;
  margin: 0 0 8px;
}

.price-details {
  margin: 4px 0;
}

.price-details summary {
  list-style: none;
}

.price-details summary::-webkit-details-marker {
  display: none;
}

.price-details p {
  margin: 10px 0 0;
  color: #475569;
  font-size: 14px;
}

.note {
  margin-top: 20px;
  font-size: 13px;
  color: #64748b;
}

.video {
  width: 100%;
  border-radius: 12px;
  background: #0f172a;
  aspect-ratio: 16 / 9;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}

.modal.is-open {
  display: flex;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
}

.modal__content {
  position: relative;
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  max-width: 820px;
  width: min(92vw, 820px);
  z-index: 1;
  display: grid;
  gap: 12px;
}

.modal__title {
  font-weight: 700;
  font-size: 18px;
}

.modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  border: none;
  background: #f1f5f9;
  border-radius: 10px;
  width: 36px;
  height: 36px;
  cursor: pointer;
}

.steps .step {
  background: #fff;
  padding: 20px;
  border-radius: 16px;
  border: 1px dashed #cbd5f5;
}

.steps span {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #2563eb;
  color: #fff;
  font-weight: 600;
  margin-bottom: 12px;
}

.lead {
  display: grid;
  gap: 32px;
  align-items: center;
  grid-template-columns: 1fr 1fr;
}

.lead__note {
  margin-top: 18px;
  padding: 14px 18px;
  background: rgba(37, 99, 235, 0.2);
  border-radius: 12px;
}

.trust {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.trust strong {
  display: block;
  font-size: 15px;
}

.trust span {
  display: block;
  font-size: 12px;
  color: #94a3b8;
  margin-top: 6px;
}

.quick-contacts {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: center;
}

.quick-contacts__actions {
  display: grid;
  gap: 12px;
}

.form {
  display: grid;
  gap: 16px;
  padding: 24px;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  background: #fff;
}

.form label {
  display: grid;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
}

.form input,
.form textarea {
  border: 1px solid #cbd5f5;
  padding: 12px 14px;
  border-radius: 10px;
  font: inherit;
}

.form__check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 14px;
}

.form__check input {
  width: 18px;
  height: 18px;
}

.faq .card {
  background: #fff;
}

.footer {
  background: #0f172a;
  color: #e2e8f0;
  padding: 48px 0 24px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 24px;
}

.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  color: #94a3b8;
}

.footer__bottom {
  text-align: center;
  margin-top: 32px;
  color: #94a3b8;
  font-size: 13px;
}


@media (max-width: 960px) {
  .hero__grid,
  .highlights,
  .lead {
    grid-template-columns: 1fr;
  }

  .quick-contacts {
    grid-template-columns: 1fr;
  }

  .catalog__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust {
    grid-template-columns: 1fr;
  }

  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav {
    display: none;
  }
}

@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .catalog__grid {
    grid-template-columns: 1fr;
  }

  .header__wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding-top: 48px;
  }

  .hero__stats {
    grid-template-columns: 1fr;
  }
}