:root {
  --paper: #F0F0F0;
  --ink: #101820;
  --ink-strong: #22272C;
  --blue: #2563EB;
  --blue-hover: #1d4fd1;
  --blue-soft: #5B8DEF;
  --muted-dark-bg: #C7CCD1;
  --muted-light-bg: #5A6068;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Source Sans 3', sans-serif;
  overflow-x: hidden;
}

a { color: var(--blue); }
a:hover { color: var(--blue-hover); }

img { max-width: 100%; }

.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 700;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  font-size: 14px;
  padding: 10px 22px;
}
.btn-lg {
  font-size: 15px;
  padding: 14px 28px;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 64px;
  position: sticky;
  top: 0;
  background: rgba(240, 240, 240, 0.92);
  backdrop-filter: blur(6px);
  z-index: 10;
  border-bottom: 1px solid rgba(16, 24, 32, 0.08);
}
.logo { height: 24px; }
.nav-links {
  display: flex;
  gap: 32px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-strong);
}
.nav-links a {
  text-decoration: none;
  color: var(--ink-strong);
}

/* Hero */
.hero-section {
  display: flex;
  align-items: center;
  gap: 56px;
  padding: 80px 64px 100px;
  max-width: 1440px;
  margin: 0 auto;
}
.hero-text {
  flex: 1;
  max-width: 560px;
}
.hero-headline-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  margin: 0 0 20px;
}
.hero-headline {
  position: absolute;
  top: 0;
  left: 0;
  font-size: 48px;
  font-weight: 800;
  line-height: 1.12;
  margin: 0;
  text-wrap: balance;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .4s ease, transform .4s ease;
}
.hero-headline.is-active {
  opacity: 1;
  transform: translateY(0);
}
.hero-desc {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-strong);
  margin: 0 0 32px;
}
.hero-cta-row {
  display: flex;
  gap: 16px;
  align-items: center;
}
.phone-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--blue);
}
.hero-image-wrap {
  flex: 1;
  display: flex;
  justify-content: center;
}
.hero-image {
  width: 100%;
  max-width: 560px;
  display: block;
  transform: perspective(1200px) rotateY(8deg) rotateX(2deg);
}

/* Sections */
.section { padding: 90px 64px; }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-inner-narrow { max-width: 1000px; margin: 0 auto; }
.section-dark {
  background: var(--ink);
  color: var(--paper);
}
.section-light-panel {
  background: #fff;
  border-top: 1px solid rgba(16, 24, 32, 0.08);
  border-bottom: 1px solid rgba(16, 24, 32, 0.08);
}
.section-center { text-align: center; }

.eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--blue);
  margin-bottom: 14px;
}
.eyebrow-blue { color: var(--blue-soft); }

.section-title {
  font-size: 32px;
  font-weight: 800;
  margin: 0 0 24px;
  text-wrap: balance;
}

.body-text {
  font-size: 16px;
  line-height: 1.7;
  margin: 0 0 18px;
}
.body-text-dark { color: var(--muted-dark-bg); }
.body-text:last-of-type { margin-bottom: 0; }

/* Advantages */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.card {
  background: #fff;
  border-radius: 6px;
  padding: 32px;
  border: 1px solid rgba(16, 24, 32, 0.08);
}
.card-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 10px;
}
.card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.card-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-strong);
}

/* Specs */
.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 40px;
}
.spec-item {
  display: flex;
  gap: 14px;
}
.spec-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  min-width: 24px;
}
.spec-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 3px;
}
.spec-text {
  font-size: 13px;
  color: var(--muted-light-bg);
  line-height: 1.5;
}

/* Contacts */
.contacts-title { margin-bottom: 16px; }
.contacts-lead { margin-bottom: 36px; }
.contacts-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 44px;
}
.contacts-links {
  display: flex;
  justify-content: center;
  gap: 40px;
  font-size: 15px;
  color: var(--paper);
  font-weight: 600;
  margin-top: 40px;
}
.contacts-links a {
  color: var(--paper);
  text-decoration: none;
}

/* Order form → ERP */
.fpv-form {
  max-width: 560px;
  margin: 0 auto 8px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.fpv-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.fpv-form__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted-dark-bg);
}
.fpv-form__field input,
.fpv-form__field textarea {
  border: 1px solid rgba(240, 240, 240, 0.18);
  background: rgba(16, 24, 32, 0.35);
  color: var(--paper);
  border-radius: 4px;
  padding: 12px 14px;
  font: inherit;
  font-weight: 500;
}
.fpv-form__field input::placeholder,
.fpv-form__field textarea::placeholder {
  color: rgba(240, 240, 240, 0.35);
}
.fpv-form__field input:focus,
.fpv-form__field textarea:focus {
  outline: 2px solid var(--blue);
  outline-offset: 1px;
}
.fpv-form__submit {
  border: none;
  cursor: pointer;
  align-self: center;
  margin-top: 8px;
}
.fpv-form__submit:disabled {
  opacity: 0.55;
  cursor: wait;
}
.fpv-form__status {
  min-height: 1.4em;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted-dark-bg);
  margin: 0;
}
.fpv-form__status.is-ok { color: #86efac; }
.fpv-form__status.is-err { color: #fca5a5; }

/* Footer */
.site-footer {
  padding: 28px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted-light-bg);
  background: var(--paper);
}
.footer-logo { height: 18px; opacity: 0.6; }

/* Responsive */
@media (max-width: 780px) {
  .nav-links { display: none !important; }
  .site-header { padding: 16px 20px !important; }
  .hero-section {
    flex-direction: column !important;
    padding: 48px 20px 60px !important;
    gap: 32px !important;
    min-height: auto !important;
  }
  .hero-text { max-width: 100% !important; }
  .hero-headline { font-size: 32px !important; }
  .hero-cta-row { flex-wrap: wrap !important; }
  .section { padding: 56px 20px !important; }
  .specs-grid, .adv-grid { grid-template-columns: 1fr !important; }
  .contacts-links { flex-direction: column !important; gap: 16px !important; }
  .fpv-form__row { grid-template-columns: 1fr !important; }
  .site-footer {
    padding: 24px 20px !important;
    flex-direction: column !important;
    gap: 12px !important;
    text-align: center;
  }
}