:root {
  --bg: #f4f8f8;
  --card: #ffffff;
  --ink: #1c2830;
  --muted: #4d5d67;
  --blue: #0b4dff;
  --line: #e2ecec;
  --max: 1040px;
  --font: Rubik, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
}

img { max-width: 100%; height: auto; display: block; }

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

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.logo {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.01em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 14px;
  border-radius: 8px;
}

.nav a:hover,
.nav a.active {
  background: #e8f0ff;
  color: var(--blue);
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
  padding: 48px 0 28px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 4vw, 2.7rem);
  line-height: 1.25;
  font-weight: 700;
}

.hero .lead {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 1.15rem;
}

.hero-photo {
  min-height: 240px;
  border-radius: 16px;
  background: #fff url("../images/pcb-bg.jpg") center / cover no-repeat;
  border: 1px solid var(--line);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 16px;
  padding: 0 18px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  border-radius: 8px;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
}

.button:hover { background: #083dcc; color: #fff; }

.button.quiet {
  background: #fff;
  color: var(--blue);
  border: 1px solid #c9d7ff;
}

.section { padding: 18px 0 8px; }

.section h2 {
  margin: 0 0 6px;
  font-size: 1.7rem;
}

.section .intro {
  margin: 0 0 18px;
  color: var(--muted);
  max-width: 62ch;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card,
.product,
.offer,
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.card { padding: 18px 18px 20px; }

.card h3,
.offer h3,
.product h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.card p,
.offer p,
.product p { margin: 0 0 8px; }

.card img,
.product img {
  width: 100%;
  height: 160px;
  object-fit: contain;
  background: #f7fbfb;
  border-bottom: 1px solid var(--line);
}

.card img { border-radius: 14px 14px 0 0; margin: -18px -18px 14px; width: calc(100% + 36px); height: 150px; padding: 12px; }

.offers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.offer { padding: 20px; }

.offer .he { margin-top: 8px; }

.links { padding: 0; margin: 0; list-style: none; }

.links li { margin: 8px 0; }

.he { font-family: var(--font); }

.page { padding: 32px 0 16px; }

.page h1 {
  margin: 0 0 8px;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.service {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  padding: 22px;
  margin: 0 0 16px;
}

.service h2 { margin: 0 0 8px; font-size: 1.3rem; }

.products { display: grid; gap: 16px; }

.product {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  overflow: hidden;
}

.product img {
  height: 100%;
  min-height: 180px;
  border-bottom: 0;
  border-right: 1px solid var(--line);
}

.product div { padding: 20px 22px; }

.price { font-weight: 700; }

.specs { margin: 8px 0 0; padding-inline-start: 1.1em; }

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 20px;
  align-items: start;
}

.panel { padding: 22px; }

.contact-details { background: var(--bg); }

.contact-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 0;
}

.contact-img {
  height: 28px;
  width: auto;
  background: var(--bg);
}

label { display: block; font-weight: 600; margin: 12px 0 4px; }

input,
textarea {
  width: 100%;
  border: 1px solid #cfdada;
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}

textarea { min-height: 140px; resize: vertical; }

.note {
  background: #e9f8ef;
  border: 1px solid #b7e4c7;
  border-radius: 8px;
  padding: 10px 12px;
}

.note.error { background: #fff1f0; border-color: #f0c2be; }

.hp {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
}

.site-footer {
  margin-top: 36px;
  padding: 22px 0 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
}

.footer-nav { display: flex; gap: 14px; }

.footer-nav a { color: var(--ink); font-weight: 600; text-decoration: none; }

.footer-contact {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-footer .contact-img { height: 22px; }

@media (max-width: 800px) {
  .header-inner { min-height: 0; padding: 10px 0; align-items: flex-start; flex-direction: column; }
  .nav { width: 100%; }
  .nav a {
    flex: 1 1 calc(50% - 6px);
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
  }
  .hero,
  .cards,
  .offers,
  .service,
  .product,
  .contact-grid { grid-template-columns: 1fr; }
  .product img { border-right: 0; border-bottom: 1px solid var(--line); height: 180px; }
  .hero { padding-top: 28px; }
  .hero-photo { min-height: 180px; }
}