:root {
  --page-bg: #D3E8FC;
  --header-band: #ACFDFE;
  --nav-bg: #3399ff;
  --nav-hover: #1a7ae6;
  --ad2000: #3399ff;
  --heading: #6699ff;
  --panel: #ffffff;
  --text: #1c2430;
  --muted: #5b6775;
  --row-alt: #bfe2ff;
  --accent-soft: #e8f4ff;
  --max: 960px;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(21, 68, 120, 0.12);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--page-bg);
  color: var(--text);
  font-family: Tahoma, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
}

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

a { color: #1a66cc; }

a:hover { text-decoration: underline; }

.site-header {
  background: var(--header-band);
  box-shadow: var(--shadow);
}

.header-band {
  max-width: var(--max);
  margin: 0 auto;
}

.brand-link { display: block; }

.banner-img {
  display: block;
  width: 100%;
  max-height: 140px;
  object-fit: cover;
  object-position: right center;
}

.site-nav {
  background: var(--nav-bg);
}

.nav-toggle {
  display: none;
  width: calc(100% - 1.5rem);
  margin: 0.65rem 0.75rem;
  background: #1a7ae6;
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 0.7rem 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.15rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.35rem 0.5rem;
}

.nav-list a {
  display: block;
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.7rem 0.95rem;
  border-radius: 8px;
}

.nav-list a:hover,
.nav-list a:focus {
  background: var(--nav-hover);
  text-decoration: none;
}

.site-main {
  flex: 1;
  width: min(var(--max), calc(100% - 1.5rem));
  margin: 1.25rem auto 2rem;
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem 1.6rem 2rem;
}

.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.ad2000 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 2.75rem);
  color: var(--ad2000);
  font-weight: 800;
  letter-spacing: 0.01em;
}

.caption {
  margin: 0.35rem 0 0;
  color: var(--heading);
  font-size: 1.15rem;
  font-style: italic;
  font-weight: 400;
}

.product-shot {
  width: 180px;
  border-radius: 10px;
  background: var(--accent-soft);
  padding: 0.5rem;
}

.welcome {
  color: var(--muted);
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

h1, .heading1 {
  margin: 0 0 1rem;
  color: var(--heading);
  font-size: 1.35rem;
}

h2, .boldBody {
  margin: 1.25rem 0 0.5rem;
  color: var(--text);
  font-size: 1.05rem;
}

p { margin: 0 0 0.9rem; }

.card {
  background: var(--accent-soft);
  border: 1px solid #c5def5;
  border-radius: 10px;
  padding: 1rem 1.1rem;
}

.blue-link,
a.blue-link {
  color: #1a66cc;
  font-weight: 600;
}

.models {
  margin-top: 1.25rem;
  padding: 1rem 1.1rem;
  background: linear-gradient(90deg, #e8f4ff, #f7fbff);
  border-left: 5px solid var(--ad2000);
  border-radius: 8px;
}

.manual-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.manual-list li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid #e4eef7;
}

.manual-list img {
  width: 16px;
  height: 17px;
}

.faq-list {
  display: grid;
  gap: 0.55rem;
}

.faq-list details {
  border: 1px solid #d5e7f8;
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

.faq-list details:nth-child(even) {
  background: var(--row-alt);
}

.faq-list summary {
  cursor: pointer;
  padding: 0.75rem 0.95rem;
  font-weight: 600;
  color: #16324f;
}

.faq-list details[open] summary {
  background: #3399ff;
  color: #fff;
}

.faq-list details p {
  padding: 0.85rem 0.95rem 1rem;
  margin: 0;
  color: #3a4654;
}

.contact-card {
  max-width: 32rem;
}

.contact-card a {
  display: inline-block;
  margin-top: 0.4rem;
  font-weight: 700;
}

.links-list a {
  color: #16324f;
  font-weight: 600;
}

.site-footer {
  text-align: center;
  color: #6a7682;
  font-size: 0.8rem;
  padding: 0 1rem 1.75rem;
}

.site-footer p { margin: 0.2rem 0; }

.footer-tag { color: #7d8894; }

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav-list {
    display: none;
    flex-direction: column;
    padding: 0 0.75rem 0.75rem;
  }
  .nav-list.open { display: flex; }
  .hero, .grid-2 {
    grid-template-columns: 1fr;
  }
  .product-shot {
    width: 160px;
    justify-self: start;
  }
  .site-main {
    width: calc(100% - 1rem);
    padding: 1.15rem 1rem 1.5rem;
  }
}