:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --text: #0f172a;
  --muted: #64748b;
  --border: #dbe2ea;
  --primary: #0d47a1;
  --primary-2: #c89d2a;
  --card: #ffffff;
  --shadow: 0 15px 40px rgba(15, 23, 42, 0.08);
}

:root[data-theme='dark'] {
  --bg: #0b1220;
  --bg-soft: #111b2f;
  --text: #f8fafc;
  --muted: #cbd5e1;
  --border: #22304a;
  --primary: #3b82f6;
  --primary-2: #e0b347;
  --card: #101827;
  --shadow: 0 15px 40px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
:root[data-theme='dark'] .site-header { background: rgba(11,18,32,0.92); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand img { width: 68px; height: 68px; object-fit: contain; border-radius: 12px; }
.brand strong { display: block; font-size: 20px; }
.brand span { display: block; font-size: 12px; color: var(--muted); }
.main-nav { display: flex; align-items: center; gap: 22px; }
.main-nav a { font-weight: 600; color: var(--muted); }
.main-nav a:hover { color: var(--text); }
.nav-actions { display: flex; gap: 10px; }
.theme-toggle, .menu-toggle {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  cursor: pointer;
}
.menu-toggle { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 14px;
  border: 1px solid transparent;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }

.hero { padding: 34px 0 24px; }
.hero-slider { position: relative; overflow: hidden; }
.slide { display: none; }
.slide.active { display: block; }
.hero-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
.hero-copy,
.hero-visual,
.info-card,
.product-card,
.contact-card,
.feature-panel,
.showcase-image,
.showcase-copy {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}
.hero-copy {
  padding: 40px;
  background: linear-gradient(135deg, rgba(13,71,161,.12), rgba(200,157,42,.08));
}
.tag, .section-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 14px;
}
.hero-copy h1 { margin: 0 0 14px; font-size: clamp(34px, 5vw, 58px); line-height: 1.05; }
.hero-copy p { font-size: 18px; color: var(--muted); line-height: 1.8; }
.hero-buttons { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.hero-points span {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 700;
  background: rgba(255,255,255,.55);
}
.hero-visual { padding: 16px; }
.hero-visual > img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: 18px;
}
.hero-badges { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.info-card { padding: 18px; }
.info-card h3 { margin: 0 0 8px; font-size: 18px; }
.info-card p { margin: 0; color: var(--muted); line-height: 1.6; font-size: 14px; }
.slider-dots { display: flex; justify-content: center; gap: 10px; margin-top: 18px; }
.slider-dots button {
  width: 12px; height: 12px; border-radius: 50%; border: 0; background: #cbd5e1; cursor: pointer;
}
.slider-dots button.active { width: 36px; border-radius: 999px; background: var(--primary); }

.section { padding: 80px 0; }
.section-alt { background: var(--bg-soft); }
.about-grid, .contact-grid, .showcase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.lead { color: var(--muted); font-size: 17px; line-height: 1.9; }
.feature-panel { padding: 32px; background: linear-gradient(135deg, var(--primary), #061c48); color: #fff; margin-top: 24px; }
.feature-panel ul { margin: 18px 0 0; padding-left: 18px; }
.feature-panel li { margin-bottom: 12px; line-height: 1.7; }
.about-visual-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr 1fr;
}
.about-visual-grid img,
.showcase-image img,
.contact-side-image img {
  width: 100%;
  border-radius: 22px;
  object-fit: cover;
  box-shadow: var(--shadow);
}
.about-visual-grid img:first-child { height: 100%; min-height: 340px; }
.about-visual-grid img:last-child { margin-top: 40px; min-height: 300px; }
.showcase-copy { padding: 34px; }
.showcase-image { padding: 14px; }
.showcase-image img { height: 420px; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 28px; }
.product-card { overflow: hidden; }
.product-image-wrap img { width: 100%; height: 240px; object-fit: cover; }
.product-body { padding: 22px; }
.product-top { display: flex; align-items: start; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.product-top h3 { margin: 0 0 6px; }
.product-top p { margin: 0; color: var(--muted); }
.status { padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.status.live { background: rgba(34,197,94,.15); color: #16a34a; }
.status.off { background: rgba(239,68,68,.12); color: #dc2626; }
.price-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; border-radius: 16px; background: var(--bg-soft); margin-top: 12px;
}
.price-row span { color: var(--muted); font-size: 14px; }

.contact-card { padding: 32px; }
.dark-card {
  background: linear-gradient(135deg, #081933, #0d47a1);
  color: #fff;
}
.dark-card .section-tag,
.dark-card p,
.dark-card li { color: rgba(255,255,255,.9); }
.contact-list { padding-left: 18px; line-height: 1.8; }
.contact-side-image { margin-top: 24px; }
.contact-side-image img { height: 280px; }
.contact-form label { display: block; font-weight: 700; margin-bottom: 8px; }
.contact-form input,
.contact-form textarea {
  width: 100%; padding: 14px 16px; border: 1px solid var(--border); border-radius: 14px;
  background: var(--card); color: var(--text); font: inherit;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form > div { margin-bottom: 16px; }

.site-footer { background: #061224; color: #f8fafc; padding-top: 44px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 24px; }
.site-footer p, .site-footer a { color: rgba(248,250,252,.8); }
.social-links { display: flex; flex-wrap: wrap; gap: 12px; }
.social-links a {
  padding: 10px 14px; border: 1px solid rgba(255,255,255,.15); border-radius: 14px;
}
.footer-bottom { padding: 18px 0; margin-top: 24px; border-top: 1px solid rgba(255,255,255,.1); }

.alert {
  padding: 14px 16px;
  border-radius: 14px;
  margin-bottom: 16px;
  font-weight: 700;
}
.alert.success { background: rgba(34,197,94,.12); color: #166534; }

@media (max-width: 1024px) {
  .hero-grid,
  .about-grid,
  .contact-grid,
  .showcase-grid,
  .product-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 86px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 16px;
    width: min(280px, calc(100% - 32px));
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
  }
  .main-nav.show { display: flex; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .hero-copy,
  .contact-card,
  .showcase-copy { padding: 24px; }
  .hero-badges,
  .form-grid,
  .about-visual-grid,
  .product-grid { grid-template-columns: 1fr; }
  .hero-visual > img,
  .showcase-image img,
  .contact-side-image img { height: auto; }
}