:root {
  --bg-a: #eff6ff;
  --bg-b: #ffffff;
  --bg-c: #eaf3ff;
  --text: #0f172a;
  --muted: #5b6b84;
  --line: #d9e7f6;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --shadow-sm: 0 6px 18px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 25px 50px rgba(37, 99, 235, 0.12);
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(191, 219, 254, 0.65), transparent 26%),
    radial-gradient(circle at top right, rgba(219, 234, 254, 0.9), transparent 28%),
    linear-gradient(180deg, var(--bg-a) 0%, var(--bg-b) 28%, var(--bg-c) 100%);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.shell { position: relative; overflow: hidden; }
.container { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }

.nav-wrap { position: sticky; top: 0; z-index: 40; padding: 16px 0 0; }
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-sm);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 100px;
  height: 100px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  overflow: hidden;
  background: #f6f5f1;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.16);
}
.brand-mark img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center; }
.brand-meta small { display: block; letter-spacing: 0.22em; text-transform: uppercase; color: #6b7280; font-size: 11px; font-weight: 700; }
.brand-meta strong { display: block; font-size: 14px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.headers, .nav-links > a, .dropdown-toggle { color: #55637d; font-size: 16px; font-weight: 700; }
.nav-links > a:hover, .dropdown-toggle:hover { color: var(--blue); }
.dropdown { position: relative; }
.dropdown-toggle { border: 0; background: transparent; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  width: 270px;
  padding: 12px;
  border: 1px solid #dbeafe;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
  box-shadow: 0 22px 40px rgba(15, 23, 42, 0.12);
  opacity: 0;
  pointer-events: none;
  transition: 180ms ease;
}
.dropdown.open .dropdown-menu { opacity: 1; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.dropdown-menu a { display: block; padding: 13px 14px; border-radius: 18px; font-size: 15.5px; font-weight: 700; color: #56637d; }
.dropdown-menu a:hover { background: #eff6ff; color: var(--blue); }

.cta, .ghost { transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease; }
.cta:hover, .ghost:hover { transform: scale(1.05); }
.cta {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  border: 0;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.22);
}
.cta:hover { background: var(--blue-dark); box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.08), 0 24px 45px rgba(37, 99, 235, 0.22); }
.ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
  border-radius: 999px;
  border: 1px solid #dbe4ef;
  background: white;
  color: #44516a;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}
.ghost:hover { color: var(--blue); border-color: #bfdbfe; }
.mobile-toggle { display: none; border: 1px solid #dbe4ef; background: white; border-radius: 999px; width: 44px; height: 44px; cursor: pointer; font-size: 18px; }
.mobile-panel { display: none; margin-top: 12px; padding: 16px; border: 1px solid rgba(255, 255, 255, 0.7); border-radius: 28px; background: rgba(255, 255, 255, 0.88); backdrop-filter: blur(18px); box-shadow: var(--shadow-sm); }
.mobile-panel a, .mobile-panel button { display: block; width: 100%; text-align: left; }
.mobile-list { display: grid; gap: 8px; }
.mobile-link { padding: 13px 14px; border-radius: 18px; color: #44516a; font-size: 16px; font-weight: 700; }
.mobile-link:hover { background: #eff6ff; }

.section { padding: 84px 0; }
.led-hero { padding: 68px 0 84px; }
.led-hero-grid { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 42px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 10px 14px; border: 1px solid #dbeafe; border-radius: 999px; background: rgba(255, 255, 255, 0.8); color: var(--blue); font-size: 14px; font-weight: 600; box-shadow: var(--shadow-sm); }
.eyebrow-dot { width: 10px; height: 10px; border-radius: 999px; background: #3b82f6; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin: 22px 0 0; max-width: 760px; font-size: clamp(42px, 6.2vw, 66px); line-height: 1.02; letter-spacing: -0.04em; }
.lead { margin: 22px 0 0; max-width: 680px; color: var(--muted); font-size: 18px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 34px; }
.hero-media { overflow: hidden; border-radius: 32px; border: 1px solid rgba(255, 255, 255, 0.72); box-shadow: var(--shadow-lg); background: white; }
.hero-media img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }

.label { display: block; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; }
.section-head { max-width: 760px; }
.section-head h2, .dark-panel h2, .quote h2 { margin: 12px 0 0; font-size: clamp(32px, 4.5vw, 48px); line-height: 1.08; letter-spacing: -0.04em; }
.section-head p { margin: 14px 0 0; color: var(--muted); font-size: 18px; line-height: 1.8; }
.centered { margin: 0 auto; text-align: center; }

.intro-section { padding-top: 24px; }
.intro-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 36px; align-items: start; }
.intro-copy { padding: 28px; border: 1px solid rgba(255, 255, 255, 0.72); border-radius: 24px; background: rgba(255, 255, 255, 0.82); box-shadow: var(--shadow-sm); }
.intro-copy p { color: var(--muted); font-size: 17px; line-height: 1.85; }
.intro-copy p:last-child { margin-bottom: 0; }

.equipment-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 38px; }
.equipment-card { overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.72); border-radius: 24px; background: rgba(255, 255, 255, 0.86); box-shadow: var(--shadow-sm); transition: transform 180ms ease, box-shadow 180ms ease; }
.equipment-card:hover { transform: translateY(-5px); box-shadow: 0 24px 46px rgba(15, 23, 42, 0.12); }
.equipment-card img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: #eff6ff; }
.equipment-card > div { padding: 20px; }
.equipment-card span { display: block; color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; }
.equipment-card h3 { margin: 10px 0 0; font-size: 22px; line-height: 1.12; }
.equipment-card p { margin: 10px 0 0; color: var(--muted); line-height: 1.65; }
.price-reveal { display: grid; gap: 8px; max-height: 0; margin-top: 0; overflow: hidden; overscroll-behavior: contain; opacity: 0; transform: translateY(14px); transition: max-height 520ms cubic-bezier(0.22, 1, 0.36, 1), margin-top 520ms cubic-bezier(0.22, 1, 0.36, 1), opacity 420ms ease, transform 520ms cubic-bezier(0.22, 1, 0.36, 1); }
.equipment-card:hover .price-reveal, .equipment-card:focus-within .price-reveal { max-height: 220px; margin-top: 16px; overflow-y: auto; padding-right: 4px; opacity: 1; transform: translateY(0); }
.price-reveal div { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 12px; border: 1px solid #dbeafe; border-radius: 12px; background: #f8fbff; }
.price-reveal span { color: #64748b; font-size: 11px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.price-reveal::-webkit-scrollbar { width: 6px; }
.price-reveal::-webkit-scrollbar-track { background: #eff6ff; border-radius: 999px; }
.price-reveal::-webkit-scrollbar-thumb { background: #bfdbfe; border-radius: 999px; }
.price-reveal::-webkit-scrollbar-thumb:hover { background: var(--blue); }
.price-reveal strong { flex: 0 0 auto; color: var(--blue); font-size: 14px; }

.use-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 24px; }
.dark-panel { padding: 34px; border-radius: 28px; background: #020617; color: white; box-shadow: 0 24px 48px rgba(15, 23, 42, 0.22); }
.dark-panel .label { color: #bfdbfe; }
.dark-panel p { margin: 16px 0 0; color: #cbd5e1; line-height: 1.8; }
.use-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.use-card { padding: 24px; border: 1px solid rgba(255, 255, 255, 0.72); border-radius: 24px; background: rgba(255, 255, 255, 0.82); box-shadow: var(--shadow-sm); }
.use-card h3 { font-size: 22px; line-height: 1.15; margin-bottom: 12px; }
.use-card p { color: var(--muted); line-height: 1.75; margin-bottom: 0; }

.gallery-section { padding-top: 20px; }
.gallery-head { margin-bottom: 32px; }
.gallery-grid { display: grid; grid-template-columns: 1.2fr 0.9fr 0.9fr; gap: 18px; }
.gallery-grid img { width: 100%; height: 360px; object-fit: cover; border-radius: 24px; box-shadow: var(--shadow-sm); background: #eff6ff; }

.quote { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; padding: 46px 54px; border: 1px solid #dbeafe; border-radius: 32px; background: rgba(255, 255, 255, 0.9); box-shadow: 0 25px 55px rgba(191, 219, 254, 0.35); }
.quote p { margin: 14px 0 0; color: var(--muted); font-size: 18px; line-height: 1.8; max-width: 720px; }
.quote-actions { display: flex; flex-direction: column; gap: 16px; }

@media (max-width: 1100px) {
  .led-hero-grid, .intro-grid, .use-grid, .quote { grid-template-columns: 1fr; }
  .equipment-grid, .use-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gallery-grid { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .nav-links, .desktop-cta { display: none; }
  .mobile-toggle { display: inline-grid; place-items: center; }
  .mobile-panel.show { display: block; }
  .equipment-grid, .use-cards { grid-template-columns: 1fr; }
  .quote { padding: 32px 24px; }
}
@media (max-width: 520px) {
  .container { width: min(calc(100% - 20px), var(--max)); }
  .section { padding: 64px 0; }
  .brand-mark { width: 72px; height: 72px; }
  .brand-meta strong { font-size: 12px; }
  .led-hero { padding-top: 52px; }
  .gallery-grid img { height: 280px; }
}

/* shared animation polish */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(1.5px);
  transition: opacity 720ms ease, transform 720ms cubic-bezier(0.22, 1, 0.36, 1), filter 720ms ease;
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.service-card,
.benefit,
.equipment-card,
.use-card,
.process-step,
.contact-method {
  will-change: transform, box-shadow;
}

.service-card:hover,
.benefit:hover,
.equipment-card:hover,
.use-card:hover,
.process-step:hover,
.contact-method:hover {
  transform: translateY(-7px);
  box-shadow: 0 26px 52px rgba(15, 23, 42, 0.13);
}

.service-icon,
.benefit-icon {
  transition: transform 260ms ease, box-shadow 260ms ease, filter 260ms ease;
}

.service-card:hover .service-icon,
.benefit:hover .benefit-icon {
  transform: translateY(-2px) scale(1.06);
  filter: saturate(1.12);
  box-shadow: 0 18px 34px rgba(37, 99, 235, 0.22);
}

.equipment-card img,
.gallery-grid img,
.hero-media img,
.slider-slide img {
  transition: transform 650ms cubic-bezier(0.22, 1, 0.36, 1), filter 650ms ease;
}

.equipment-card:hover img,
.gallery-grid img:hover,
.hero-media:hover img,
.slider-slide.is-active img:hover {
  transform: scale(1.035);
  filter: saturate(1.08) contrast(1.03);
}

.slider-slide {
  transform: translateX(16px) scale(0.99);
  transition: opacity 620ms ease, transform 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

.slider-slide.is-active {
  transform: translateX(0) scale(1);
}

.slider-progress {
  height: 4px;
  margin: 0 24px;
  overflow: hidden;
  border-radius: 999px;
  background: #dbeafe;
}

.slider-progress span {
  display: block;
  width: 100%;
  height: 100%;
  transform-origin: left;
  background: var(--blue);
}

.slider-progress.is-paused span {
  animation-play-state: paused !important;
}

@keyframes sliderProgress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    filter: none;
  }
}
/* Floating contact shortcuts */
.floating-contact {
  position: fixed;
  right: clamp(14px, 2.2vw, 28px);
  bottom: clamp(14px, 2.2vw, 28px);
  z-index: 80;
  display: grid;
  gap: 10px;
}

.floating-contact__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 12px 16px;
  border: 0;
  border-radius: 999px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 850;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.24);
  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.floating-contact__button:hover,
.floating-contact__button:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 22px 44px rgba(15, 23, 42, 0.28);
  filter: brightness(1.03);
}

.floating-contact__button svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  flex: 0 0 auto;
}

.floating-contact__button--whatsapp {
  background: #25d366;
}

.floating-contact__button--telegram {
  background: #229ed9;
}

@media (max-width: 520px) {
  .floating-contact {
    right: 12px;
    bottom: 12px;
  }

  .floating-contact__button {
    width: 48px;
    height: 48px;
    min-height: 48px;
    padding: 0;
  }

  .floating-contact__button span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
  }
}


/* Back to top shortcut */
.back-to-top {
  position: fixed;
  right: clamp(14px, 2.2vw, 28px);
  bottom: clamp(138px, 13vw, 156px);
  z-index: 79;
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 999px;
  background: #0f172a;
  color: #ffffff;
  font-size: 22px;
  font-weight: 900;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px) scale(0.94);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.24);
  transition: opacity 220ms ease, transform 220ms ease, background 180ms ease, box-shadow 180ms ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  background: var(--blue, #2563eb);
  box-shadow: 0 20px 42px rgba(37, 99, 235, 0.28);
}

.back-to-top span {
  line-height: 1;
  transform: translateY(-1px);
}

@media (max-width: 520px) {
  .back-to-top {
    right: 13px;
    bottom: 122px;
    width: 44px;
    height: 44px;
  }
}