:root {
  color-scheme: light;
  --color-ink: #172033;
  --color-muted: #667085;
  --color-soft: #f6f4ef;
  --color-paper: #fffaf1;
  --color-surface: #ffffff;
  --color-line: rgba(23, 32, 51, 0.14);
  --color-accent: #315f7c;
  --color-accent-dark: #19384e;
  --color-warm: #d8c7ad;
  --shadow-soft: 0 22px 60px rgba(23, 32, 51, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --max-page: 1180px;
  --header-height: 76px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-soft);
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
.page-shell { min-height: 100svh; display: flex; flex-direction: column; }
.main { flex: 1; }
.container { width: min(var(--max-page), calc(100% - 40px)); margin-inline: auto; }
.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 20;
  padding: 10px 14px;
  background: var(--color-ink);
  color: white;
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  background: rgba(246, 244, 239, 0.86);
  border-bottom: 1px solid rgba(23, 32, 51, 0.08);
  backdrop-filter: blur(18px);
}
.brand { font-size: 1.35rem; font-weight: 800; letter-spacing: -0.05em; }
.site-nav { display: flex; align-items: center; gap: 24px; font-size: 0.84rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.nav-cta, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--color-ink);
  color: white;
  border: 1px solid transparent;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: none;
}
.button.secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line);
}
.nav-toggle { display: none; }
.section { padding: 92px 0; }
.section.alt { background: var(--color-paper); }
.section-kicker { color: var(--color-accent); font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; font-size: 0.76rem; }
.section-title { margin: 10px 0 16px; font-size: clamp(2rem, 4vw, 4.2rem); line-height: 0.98; letter-spacing: -0.055em; }
.section-copy { max-width: 680px; color: var(--color-muted); font-size: 1.08rem; }
.site-footer { padding: 52px 0; background: #111827; color: rgba(255, 255, 255, 0.78); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 1fr; gap: 32px; }
.footer-grid strong { color: white; }

@media (max-width: 760px) {
  .site-header { padding: 0 20px; }
  .nav-toggle {
    display: inline-flex;
    border: 1px solid var(--color-line);
    border-radius: 999px;
    background: rgba(255,255,255,0.6);
    padding: 9px 14px;
    color: var(--color-ink);
  }
  .site-nav {
    position: absolute;
    inset: var(--header-height) 16px auto 16px;
    display: grid;
    gap: 8px;
    padding: 16px;
    background: rgba(255, 250, 241, 0.96);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
  }
  .site-nav[data-open="true"] {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .footer-grid { grid-template-columns: 1fr; }
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: calc(100svh - var(--header-height));
  overflow: hidden;
  display: grid;
  align-items: center;
  padding: 80px 32px 96px;
  background: #111827;
}
.hero-bg {
  position: absolute;
  z-index: 0;
  inset: 0;
  background-image: url("../images/hero-boardroom-integrated.jpg");
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(15,23,42,0.82), rgba(15,23,42,0.48) 38%, rgba(15,23,42,0.12) 72%),
    linear-gradient(0deg, rgba(15,23,42,0.32), transparent 34%);
}
.hero-content {
  position: relative;
  z-index: 3;
  width: min(560px, 100%);
  color: white;
}
.hero-kicker { margin: 0 0 18px; color: rgba(255,255,255,0.72); letter-spacing: 0.18em; text-transform: uppercase; font-weight: 800; }
.hero h1 { margin: 0; font-size: clamp(3.4rem, 8vw, 8.4rem); line-height: 0.92; letter-spacing: -0.07em; }
.hero-content > p:not(.hero-kicker) { max-width: 500px; color: rgba(255,255,255,0.78); font-size: clamp(1rem, 1.8vw, 1.35rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button.light { background: white; color: var(--color-ink); }
.button.ghost-light { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.35); color: white; }
.room-chips { position: absolute; z-index: 3; left: 32px; bottom: 32px; display: flex; flex-wrap: wrap; gap: 10px; }
.room-chips span { color: white; border: 1px solid rgba(255,255,255,0.34); background: rgba(255,255,255,0.1); border-radius: 999px; padding: 9px 13px; backdrop-filter: blur(10px); }
@media (max-width: 860px) {
  .hero {
    min-height: auto;
    display: block;
    padding: 72px 20px 24px;
  }
  .hero-bg { background-position: 60% center; }
  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(15,23,42,0.86), rgba(15,23,42,0.56) 54%, rgba(15,23,42,0.22)),
      linear-gradient(0deg, rgba(15,23,42,0.38), transparent 36%);
  }
  .room-chips { position: relative; left: auto; right: auto; bottom: auto; margin-top: 42px; }
}

.room-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}
.room-grid article {
  border-top: 1px solid var(--color-line);
  padding-top: 18px;
}
.room-grid strong { display: block; font-size: 1.05rem; margin-bottom: 6px; }
.room-grid span { color: var(--color-muted); }
.split-feature {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1.05fr);
  gap: clamp(32px, 6vw, 86px);
  align-items: center;
}
.split-feature img {
  border-radius: var(--radius-md);
  filter: drop-shadow(0 22px 40px rgba(23, 32, 51, 0.14));
}
.product-block {
  width: min(var(--max-page), calc(100% - 40px));
  margin: 0 auto;
  padding: 84px 0;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1.12fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  border-bottom: 1px solid var(--color-line);
}
.product-block h2 {
  margin: 10px 0 18px;
  font-size: clamp(2rem, 4vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}
.feature-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0 0 24px;
  list-style: none;
  color: var(--color-muted);
}
.feature-list li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 10px;
  border-radius: 999px;
  background: var(--color-accent);
}
.table-wrap { overflow-x: auto; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: white; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.compare-table th, .compare-table td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--color-line); }
.compare-table th { color: var(--color-muted); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; }
.compare-table a { color: var(--color-accent); font-weight: 800; }
.install-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(320px, 1.18fr);
  gap: clamp(30px, 6vw, 84px);
  align-items: center;
}
.video-frame {
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  background: #111827;
  box-shadow: var(--shadow-soft);
}
.video-frame iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
}
.media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.media-grid img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: #111827;
}
.media-grid iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: var(--radius-md);
  background: #111827;
}
.contact-hero {
  min-height: calc(100svh - var(--header-height));
  padding: 92px 0;
  background:
    linear-gradient(90deg, rgba(246,244,239,0.96), rgba(246,244,239,0.72)),
    url("../images/contact-office-s3.jpg") center / cover;
}
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: clamp(30px, 6vw, 84px);
  align-items: start;
}
.contact-card {
  padding: 22px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
}
.contact-list {
  display: grid;
  gap: 18px;
  margin: 0 0 24px;
}
.contact-list div {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-line);
}
.contact-list div:last-child { border-bottom: 0; padding-bottom: 0; }
.contact-list dt {
  margin-bottom: 5px;
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.contact-list dd {
  margin: 0;
  color: var(--color-ink);
  font-size: 1.04rem;
  font-weight: 700;
}
.contact-list a { color: var(--color-accent-dark); }
.contact-note { margin: 16px 0 0; color: var(--color-muted); font-size: 0.9rem; }
@media (max-width: 900px) {
  .room-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split-feature,
  .product-block,
  .install-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .room-grid { grid-template-columns: 1fr; }
  .product-block { width: min(100% - 32px, var(--max-page)); padding: 56px 0; }
  .section { padding: 64px 0; }
}

.carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: white;
  border: 1px solid var(--color-line);
}
.carousel-track {
  display: flex;
  transition: transform 220ms ease;
}
.carousel-track img {
  flex: 0 0 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  padding: 28px;
}
.carousel button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--color-line);
  background: rgba(255,255,255,0.86);
}
.carousel [data-carousel-prev] { left: 14px; }
.carousel [data-carousel-next] { right: 14px; }
.carousel button:disabled { opacity: 0.35; cursor: not-allowed; }