/* ═══════════════════════════════════════════════════════════
   D.D. ENTERPRISE — Main Stylesheet
   Premium Paver Block Manufacturer, West Bengal
   ═══════════════════════════════════════════════════════════ */

/* === DESIGN TOKENS ======================================= */
:root {
  --bg-0: #0c1014;
  --bg-1: #101520;
  --bg-2: #161e2a;
  --bg-3: #1e2838;
  --gold: #f5b248;
  --gold-dim: #c98c2f;
  --gold-light: #ffd07a;
  --stone: #b5a99a;
  --stone-dim: #7a6e62;
  --text-0: #ffffff;
  --text-1: #d5d9e2;
  --text-2: #8a94a6;
  --text-3: #4a5264;
  --border-0: rgba(255,255,255,0.06);
  --border-1: rgba(255,255,255,0.11);
  --border-2: rgba(255,255,255,0.18);
  --danger: #ff4f5e;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 30px;
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --max-w: 1200px;
  --nav-h: 78px;
}

/* === RESET =============================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* === CANVAS BACKGROUND =================================== */
#bg-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 1;
}

.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* === NAVBAR ============================================== */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

#site-header.scrolled {
  background: rgba(12, 16, 20, 0.92);
  backdrop-filter: blur(24px) saturate(1.3);
  box-shadow: 0 1px 0 var(--border-0), 0 20px 40px rgba(0,0,0,0.5);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: 1rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.nav-logo-wrap {
  width: 50px;
  height: 50px;
  border-radius: var(--r-sm);
  background: rgba(245,178,72,0.08);
  border: 1px solid rgba(245,178,72,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  transition: border-color 0.3s, background 0.3s;
}
.nav-logo-wrap:hover {
  border-color: rgba(245,178,72,0.45);
  background: rgba(245,178,72,0.12);
}
.nav-logo-wrap img { width: 100%; height: 100%; object-fit: contain; }

.brand-name {
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-0);
}
.brand-sub {
  font-size: 0.63rem;
  color: var(--text-2);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 0.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.nav-link {
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
  letter-spacing: 0.03em;
}
.nav-link:hover { color: var(--text-0); background: rgba(255,255,255,0.05); }
.nav-link.active { color: var(--text-0); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.nav-phone {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  color: var(--gold);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(245,178,72,0.4);
  background: rgba(245,178,72,0.05);
  font-weight: 600;
  font-family: inherit;
  line-height: 1.2;
  outline: none;
  transition: color 0.2s, border-color 0.2s, background-color 0.2s, box-shadow 0.2s;
}
.nav-phone:hover {
  color: #0a0804;
  background: var(--gold);
  border-color: var(--gold);
  box-shadow: 0 0 12px rgba(245,178,72,0.25);
}

/* Contact Dropdown Styles */
.nav-contact-dropdown {
  position: relative;
  display: inline-block;
}
.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  background: rgba(18, 24, 33, 0.95);
  border: 1px solid var(--border-1);
  border-radius: var(--r-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  display: none;
  flex-direction: column;
  min-width: 250px;
  z-index: 100;
  overflow: hidden;
  padding: 0.35rem 0;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.dropdown-menu.show {
  display: flex;
  animation: dropdownFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes dropdownFadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.7rem 1.1rem;
  color: var(--text-1);
  font-size: 0.82rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
  white-space: nowrap;
  text-align: left;
}
.dropdown-menu a svg {
  color: var(--gold);
  flex-shrink: 0;
}
.dropdown-menu a:hover {
  background: rgba(245, 178, 72, 0.1);
  color: var(--gold-light);
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-1);
  background: rgba(255,255,255,0.04);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: background 0.2s;
}
.nav-toggle:hover { background: rgba(255,255,255,0.08); }
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-in-out), opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* === BUTTONS ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  border: none;
  border-radius: 999px;
  padding: 0.65rem 1.5rem;
  cursor: pointer;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.25s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-gold {
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 55%, var(--gold-dim) 100%);
  color: #0a0804;
  box-shadow: 0 8px 24px rgba(245,178,72,0.35);
}
.btn-gold:hover { box-shadow: 0 12px 32px rgba(245,178,72,0.5); }

.btn-glass {
  background: rgba(255,255,255,0.05);
  color: var(--text-0);
  border: 1px solid var(--border-2);
}
.btn-glass:hover { background: rgba(255,255,255,0.1); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }

.btn-lg { padding: 0.85rem 2rem; font-size: 0.88rem; }
.btn-sm { padding: 0.42rem 1rem; font-size: 0.76rem; }

/* === SECTIONS & REVEAL ANIMATIONS ======================= */
section { padding: 6rem 0; }
section[id] { scroll-margin-top: calc(var(--nav-h) - 4rem); }
#request-callback { scroll-margin-top: calc(var(--nav-h) + 2rem); }

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0;
  transform: translateX(-28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0;
  transform: translateX(28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* Stagger children animations */
.stagger-children > * {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.stagger-children.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0s; }
.stagger-children.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.09s; }
.stagger-children.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.18s; }
.stagger-children.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.27s; }
.stagger-children.visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.36s; }
.stagger-children.visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.45s; }

/* Section labels */
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.9rem;
}
.section-eyebrow::before {
  content: '';
  display: block;
  width: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  border-radius: 2px;
}

.section-heading {
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-0);
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}
.section-heading .grad {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.75;
  max-width: 540px;
}

/* === HERO ================================================ */
.hero {
  padding-top: calc(var(--nav-h) + 1.5rem);
  padding-bottom: 4.5rem;
  position: relative;
  overflow: hidden;
}

/* Warm amber glow blobs — industrial warmth, not tech blue */
.hero-blob-1 {
  position: absolute;
  width: 650px; height: 650px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,178,72,0.07) 0%, transparent 65%);
  top: -180px; left: -200px;
  pointer-events: none;
  animation: blob-drift 14s ease-in-out infinite alternate;
}
.hero-blob-2 {
  position: absolute;
  width: 550px; height: 550px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,140,50,0.05) 0%, transparent 65%);
  bottom: -130px; right: -80px;
  pointer-events: none;
  animation: blob-drift 18s ease-in-out infinite alternate-reverse;
}
@keyframes blob-drift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(38px, 28px) scale(1.07); }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

/* Hero left: text */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.38rem 1rem 0.38rem 0.7rem;
  border-radius: 999px;
  background: rgba(245,178,72,0.08);
  border: 1px solid rgba(245,178,72,0.22);
  font-size: 0.73rem;
  color: var(--gold-light);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 1.5rem;
}
.hero-badge-bar {
  width: 14px;
  height: 3px;
  border-radius: 2px;
  background: var(--gold);
  flex-shrink: 0;
}

.hero-h1 {
  font-size: clamp(2.3rem, 4.4vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-0);
  margin-bottom: 1.5rem;
}
.hero-h1 .word-gold {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  font-size: 1.02rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero-cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 3rem;
}

.hero-meta-row {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.hero-meta-item { display: flex; flex-direction: column; }
.hero-meta-item .val {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-0);
  line-height: 1;
  margin-bottom: 0.2rem;
}
.hero-meta-item .val .accent { color: var(--gold); }
.hero-meta-item .lbl {
  font-size: 0.7rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.13em;
}

/* Hero right: product showcase card */
.hero-visual { position: relative; }

.hero-card-main {
  background: linear-gradient(140deg, rgba(22,30,42,0.97) 0%, rgba(14,19,28,0.99) 100%);
  border-radius: var(--r-xl);
  border: 1px solid var(--border-1);
  padding: 1.5rem;
  box-shadow: 0 32px 64px rgba(0,0,0,0.65), 0 0 0 1px rgba(255,255,255,0.03) inset;
  position: relative;
  overflow: hidden;
}
.hero-card-main::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,178,72,0.45), transparent);
}
.hero-card-glow {
  position: absolute;
  inset: -50%;
  background:
    radial-gradient(circle at 25% 25%, rgba(245,178,72,0.07), transparent 55%),
    radial-gradient(circle at 80% 80%, rgba(200,140,50,0.05), transparent 55%);
  pointer-events: none;
}
.hero-card-inner { position: relative; z-index: 1; }

.hero-card-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}
.hero-card-label {
  font-size: 0.68rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 600;
}
.hero-card-grade {
  font-size: 0.68rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border: 1px solid rgba(245,178,72,0.25);
  border-radius: 4px;
}

/* Product tile grid inside the hero card */
.hero-product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.55rem;
  margin-bottom: 1.2rem;
}
.hero-product-tile {
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
  background: var(--bg-2);
  transition: transform 0.3s var(--ease-spring), border-color 0.3s;
  cursor: pointer;
}
.hero-product-tile:hover {
  transform: scale(1.07);
  border-color: rgba(245,178,72,0.4);
}
.hero-product-tile img { width: 100%; height: 100%; object-fit: cover; }

.hero-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border-0);
  gap: 0.5rem;
  flex-wrap: wrap;
}
.hero-card-footer-text {
  font-size: 0.76rem;
  color: var(--text-2);
}
.hero-card-footer-text strong { color: var(--gold); }

/* Floating specification badge */
.hero-float-badge {
  position: absolute;
  top: -1rem;
  right: -1.4rem;
  background: linear-gradient(135deg, var(--gold), var(--gold-dim));
  color: #0a0804;
  border-radius: var(--r-md);
  padding: 0.8rem 1.1rem;
  box-shadow: 0 12px 32px rgba(245,178,72,0.45);
  text-align: center;
  z-index: 10;
}
.hero-float-badge .num {
  font-size: 1.6rem;
  font-weight: 900;
  line-height: 1;
  display: block;
}
.hero-float-badge .txt {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

/* === MARQUEE / SECTOR BAND ============================== */
.trust-band {
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-0);
  border-bottom: 1px solid var(--border-0);
  background: rgba(255,255,255,0.015);
  overflow: hidden;
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 24s linear infinite;
}
.marquee-track:hover { animation-play-state: paused; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0 2.5rem;
  font-size: 0.76rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  white-space: nowrap;
}
.marquee-sep {
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
  opacity: 0.6;
}

/* === PRODUCTS SECTION =================================== */
.products-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 3rem;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.products-scroll-wrapper { position: relative; }
.products-scroll-wrapper::after {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 80px;
  background: linear-gradient(to left, var(--bg-0), transparent);
  pointer-events: none;
  z-index: 2;
}

.products-grid {
  display: flex;
  gap: 1.2rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 1rem;
  scrollbar-width: none;
  cursor: grab;
}
.products-grid::-webkit-scrollbar { display: none; }
.products-grid.grabbing { cursor: grabbing; }

/* Desktop Custom Horizontal Scrollbar Slider */
.products-slider-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  width: 100%;
}
.products-slider-track {
  width: 100%;
  height: 8px;
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 99px;
  position: relative;
  cursor: pointer;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.8);
  transition: border-color 0.3s, height 0.2s;
}
.products-slider-track:hover {
  border-color: rgba(255, 255, 255, 0.15);
  height: 10px;
}
.products-slider-thumb {
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 99px;
  position: absolute;
  top: 0;
  left: 0;
  cursor: grab;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  transition: background 0.3s;
}
.products-slider-thumb:hover {
  background: var(--gold);
}
.products-slider-thumb:active {
  cursor: grabbing;
  background: var(--gold-light);
}

@media (max-width: 960px) {
  .products-slider-container {
    display: none !important;
  }
}

/* Product Card */
.product-card {
  flex: 0 0 295px;
  scroll-snap-align: start;
  background: linear-gradient(160deg, rgba(22,30,42,0.9) 0%, rgba(14,19,28,0.95) 100%);
  border-radius: var(--r-lg);
  border: 1px solid var(--border-0);
  overflow: hidden;
  transition: border-color 0.35s, box-shadow 0.35s, transform 0.35s var(--ease-out);
  cursor: pointer;
  position: relative;
  isolation: isolate;
}
.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(245,178,72,0.04), rgba(180,120,30,0.03));
  opacity: 0;
  transition: opacity 0.35s;
}
.product-card:hover {
  border-color: rgba(245,178,72,0.3);
  box-shadow: 0 0 0 1px rgba(245,178,72,0.12), 0 24px 48px rgba(0,0,0,0.65);
  transform: translateY(-4px);
}
.product-card:hover::before { opacity: 1; }

.product-card-image {
  height: 175px;
  background: var(--bg-2);
  overflow: hidden;
  position: relative;
}
.product-card-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease-out);
}
.product-card:hover .product-card-image img { transform: scale(1.08); }

.product-card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(14,19,28,0.95) 100%);
}

.product-card-badge {
  position: absolute;
  bottom: 0.75rem; left: 0.75rem;
  font-size: 0.64rem;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: rgba(14,19,28,0.88);
  border: 1px solid rgba(245,178,72,0.28);
  border-radius: 999px;
  padding: 0.18rem 0.55rem;
  backdrop-filter: blur(8px);
}

.product-card-body { padding: 1.2rem; }

.product-card-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-0);
  margin-bottom: 0.45rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.product-card-desc {
  font-size: 0.81rem;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}
.product-pill {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border-1);
  color: var(--text-3);
}

.product-card-cta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.link-arrow {
  font-size: 0.76rem;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  text-transform: uppercase;
}
.link-arrow svg { transition: transform 0.25s; }
.product-card:hover .link-arrow svg { transform: translateX(4px); }

/* === ABOUT SECTION ====================================== */
.about-section {
  background: linear-gradient(180deg, transparent, rgba(22,30,42,0.35) 50%, transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.about-body-text {
  font-size: 0.95rem;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.about-feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
  margin-top: 2rem;
}

.about-feature {
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border-0);
  border-radius: var(--r-md);
  padding: 1rem;
  transition: border-color 0.25s, background 0.25s;
}
.about-feature:hover {
  border-color: rgba(245,178,72,0.2);
  background: rgba(245,178,72,0.04);
}

.about-feature-icon {
  width: 34px; height: 34px;
  border-radius: 8px;
  background: rgba(245,178,72,0.1);
  border: 1px solid rgba(245,178,72,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  margin-bottom: 0.55rem;
}

.about-feature h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-0);
  margin-bottom: 0.2rem;
}
.about-feature p {
  font-size: 0.77rem;
  color: var(--text-2);
  line-height: 1.55;
}

/* Stats panel (right side of about) */
.stats-panel-wrap { display: flex; flex-direction: column; gap: 1rem; }

.stats-card {
  background: linear-gradient(140deg, rgba(22,30,42,0.92), rgba(14,19,28,0.96));
  border: 1px solid var(--border-1);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}
.stats-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,178,72,0.45), transparent);
}

.stats-grid-2x2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.stat-item { text-align: left; }
.stat-number {
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--text-0);
  line-height: 1;
  margin-bottom: 0.22rem;
  letter-spacing: -0.02em;
}
.stat-number .unit { color: var(--gold); }
.stat-label {
  font-size: 0.7rem;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.11em;
}

.quality-card {
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(245,178,72,0.14);
  border-radius: var(--r-md);
  padding: 1.1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: border-color 0.25s, background 0.25s;
}
.quality-card:hover {
  border-color: rgba(245,178,72,0.28);
  background: rgba(245,178,72,0.04);
}
.quality-card-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  border-radius: var(--r-sm);
  background: rgba(245,178,72,0.1);
  border: 1px solid rgba(245,178,72,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
}
.quality-card-text h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-0);
  margin-bottom: 0.18rem;
}
.quality-card-text p { font-size: 0.77rem; color: var(--text-2); }

/* === SECTORS SECTION ==================================== */
.sectors-section { background: transparent; }

.sectors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.sector-card {
  background: linear-gradient(140deg, rgba(22,30,42,0.88), rgba(14,19,28,0.92));
  border: 1px solid var(--border-0);
  border-radius: var(--r-md);
  padding: 1.4rem;
  transition: border-color 0.3s, transform 0.3s var(--ease-spring), box-shadow 0.3s;
  cursor: default;
  position: relative;
  overflow: hidden;
}
.sector-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-dim), var(--gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}
.sector-card:hover {
  border-color: var(--border-1);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.55);
}
.sector-card:hover::after { transform: scaleX(1); }

.sector-icon {
  width: 38px; height: 38px;
  border-radius: 9px;
  background: rgba(245,178,72,0.08);
  border: 1px solid rgba(245,178,72,0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  margin-bottom: 0.8rem;
}

.sector-card h3 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-0);
  margin-bottom: 0.35rem;
}
.sector-card p { font-size: 0.79rem; color: var(--text-2); line-height: 1.58; }

/* === GALLERY SECTION ==================================== */
.gallery-section {
  background: linear-gradient(180deg, transparent, rgba(22,30,42,0.3) 50%, transparent);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.gallery-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.gallery-item {
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--bg-2);
  border: 1px solid var(--border-0);
  aspect-ratio: 4/3;
  cursor: pointer;
  position: relative;
}
.gallery-item.featured {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: auto;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease-out);
}
.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12,16,20,0.72) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.35s;
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}
.gallery-item-overlay span {
  font-size: 0.73rem;
  color: var(--text-1);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item:hover .gallery-item-overlay { opacity: 1; }

/* === CONTACT SECTION ==================================== */
.contact-section { background: transparent; }

/* Find Us Map Strip */
.find-us-strip {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--border-1);
  background: linear-gradient(160deg, rgba(22,30,42,0.97), rgba(14,19,28,0.99));
  min-height: 280px;
}
.find-us-info {
  padding: 2rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--border-0);
}
.find-us-map {
  position: relative;
  min-height: 260px;
}
.find-us-map iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 2.5rem;
  align-items: start;
}

.contact-form-card {
  background: linear-gradient(160deg, rgba(22,30,42,0.97), rgba(14,19,28,0.99));
  border: 1px solid var(--border-1);
  border-radius: var(--r-xl);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}
.contact-form-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,178,72,0.55), transparent);
}
.contact-form-card h3 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-0);
  margin-bottom: 0.4rem;
}
.contact-form-card > .contact-intro {
  font-size: 0.87rem;
  color: var(--text-2);
  margin-bottom: 2rem;
}

/* Form elements */
.form-stack { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.77rem; color: var(--text-2); font-weight: 700; letter-spacing: 0.05em; }
.form-group label .req { color: var(--danger); margin-left: 2px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

input, select, textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-1);
  border-radius: var(--r-sm);
  padding: 0.72rem 1rem;
  color: var(--text-0);
  font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
  font-size: 0.87rem;
  outline: none;
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
  appearance: auto;
}
input::placeholder, textarea::placeholder { color: var(--text-3); }
input:focus, select:focus, textarea:focus {
  border-color: rgba(245,178,72,0.48);
  background-color: rgba(245,178,72,0.04);
  box-shadow: 0 0 0 3px rgba(245,178,72,0.1);
}
select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a94a6' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-color: rgba(255,255,255,0.04);
  padding-right: 2.5rem;
}
select option { background: #161e2a; color: var(--text-0); }
textarea { min-height: 110px; resize: vertical; }

.form-submit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.form-note { font-size: 0.73rem; color: var(--text-3); max-width: 260px; }

/* Area Calculator */
.area-calc-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.5rem;
}
.area-input-wrap,
.area-result-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.area-input-wrap input,
.area-result-wrap input {
  width: 100%;
}
.area-result {
  background: rgba(245,178,72,0.08) !important;
  border-color: rgba(245,178,72,0.3) !important;
  color: var(--gold) !important;
  font-weight: 600;
  cursor: default;
}
.area-eq {
  font-size: 1.1rem;
  color: var(--text-3);
  font-weight: 600;
  text-align: center;
  padding: 0 0.1rem;
  margin-bottom: 1.2rem;
}
.area-unit {
  font-size: 0.72rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-left: 0.15rem;
}
.area-hint {
  font-size: 0.76rem;
  color: var(--text-3);
  margin-top: 0.5rem;
  font-style: italic;
}

.captcha-row { display: flex; align-items: center; gap: 0.75rem; }
.captcha-box {
  background: linear-gradient(135deg, #efefef, #d4d4d4);
  border: 2px solid #aaa;
  border-radius: 7px;
  user-select: none;
  transform: skewY(-3deg);
  box-shadow: inset 0 1px 3px rgba(255,255,255,0.5), 0 2px 5px rgba(0,0,0,0.25);
  flex-shrink: 0;
  display: block;
}
.captcha-refresh {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border-2);
  background: rgba(255,255,255,0.05);
  color: var(--text-1);
  font-size: 1.05rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, transform 0.3s;
  flex-shrink: 0;
}
.captcha-refresh:hover { background: rgba(255,255,255,0.1); transform: rotate(180deg); }

/* Contact aside */
.contact-aside { display: flex; flex-direction: column; gap: 1rem; }

.contact-info-card {
  background: linear-gradient(140deg, rgba(22,30,42,0.9), rgba(14,19,28,0.95));
  border: 1px solid var(--border-0);
  border-radius: var(--r-md);
  padding: 1.3rem;
  transition: border-color 0.25s;
}
.contact-info-card:hover { border-color: var(--border-1); }

.contact-info-card-icon {
  width: 38px; height: 38px;
  border-radius: 9px;
  background: rgba(245,178,72,0.1);
  border: 1px solid rgba(245,178,72,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  margin-bottom: 0.75rem;
}
.contact-info-card h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-0);
  margin-bottom: 0.5rem;
}
.contact-info-card p { font-size: 0.81rem; color: var(--text-2); line-height: 1.7; }
.contact-info-card a { color: var(--gold); font-weight: 600; transition: color 0.2s; }
.contact-info-card a:hover { color: var(--gold-light); }

/* === FOOTER ============================================= */
footer {
  border-top: 1px solid var(--border-0);
  background: linear-gradient(180deg, rgba(14,19,28,0.5), var(--bg-0));
  padding: 3rem 0 2rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-0);
}
.footer-brand-name {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text-0);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}
.footer-brand-desc {
  font-size: 0.81rem;
  color: var(--text-2);
  line-height: 1.65;
  max-width: 270px;
}
.footer-col-title {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 0.9rem;
}
.footer-links { display: flex; flex-direction: column; gap: 0.45rem; }
.footer-links a { font-size: 0.82rem; color: var(--text-2); transition: color 0.2s; }
.footer-links a:hover { color: var(--gold); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-copy { font-size: 0.77rem; color: var(--text-3); }
.footer-tagline { font-size: 0.7rem; color: var(--text-3); }

/* === BACK TO TOP ========================================= */
#back-to-top {
  position: fixed;
  right: 1.5rem; bottom: 1.5rem;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-dim));
  border: none;
  color: #0a0804;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 90;
  box-shadow: 0 8px 24px rgba(245,178,72,0.4);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.3s, transform 0.3s var(--ease-spring), box-shadow 0.3s;
}
#back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
#back-to-top:hover { box-shadow: 0 12px 32px rgba(245,178,72,0.55); transform: translateY(-2px); }

/* === PRODUCT MODAL ====================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4,6,12,0.85);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1.5rem;
  backdrop-filter: blur(12px);
}
.modal-overlay.open { display: flex; }

.modal {
  width: 100%;
  max-width: 780px;
  max-height: 88vh;
  background: linear-gradient(160deg, rgba(22,30,42,0.99), rgba(14,19,28,1));
  border-radius: var(--r-xl);
  border: 1px solid var(--border-1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 40px 80px rgba(0,0,0,0.88), 0 0 0 1px rgba(255,255,255,0.04);
  animation: modal-in 0.35s var(--ease-spring);
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(0.94) translateY(14px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border-0);
}
.modal-kicker {
  font-size: 0.68rem;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}
.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-0);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.modal-close {
  width: 34px; height: 34px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-1);
  background: transparent;
  color: var(--text-2);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.modal-close:hover { background: rgba(255,255,255,0.06); color: var(--text-0); }

.modal-body {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 1.5rem;
  padding: 1.5rem;
  overflow-y: auto;
}

.modal-img-container {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--bg-2);
  height: 320px;
}
.modal-img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s var(--ease-in-out);
}
.modal-img.visible { opacity: 1; }

.modal-details-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
.modal-pill {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border-1);
  color: var(--text-2);
}

.modal-desc {
  font-size: 0.87rem;
  color: var(--text-2);
  line-height: 1.75;
  white-space: pre-line;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-0);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.modal-footer-text { font-size: 0.81rem; color: var(--text-2); }

/* === RESPONSIVE ========================================= */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-float-badge { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .sectors-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .gallery-item.featured { grid-column: span 2; grid-row: span 1; aspect-ratio: 16/7; }
  .contact-grid { grid-template-columns: 1fr; }
  .find-us-strip { grid-template-columns: 1fr; }
  .area-calc-grid { grid-template-columns: 1fr; }
  .area-eq { display: none; }
  .find-us-info { border-right: none; border-bottom: 1px solid var(--border-0); }
  .find-us-map { min-height: 220px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; flex-shrink: 0; }

  /* Mobile nav open state */
  .nav {
    flex-wrap: wrap;
    align-items: center;
    padding-top: 0.75rem;
    height: auto;
    padding-bottom: 0.75rem;
    gap: 0.5rem 1rem;
  }
  #site-header { height: auto; }
  #site-header.menu-open,
  #site-header:has(.nav.open) {
    background: rgba(12, 16, 20, 0.92);
    backdrop-filter: blur(24px) saturate(1.3);
    box-shadow: 0 1px 0 var(--border-0), 0 20px 40px rgba(0,0,0,0.5);
  }
  .nav-brand {
    margin-right: auto;
    flex-shrink: 1;
    min-width: 0;
  }
  .nav-brand > div {
    min-width: 0;
  }
  .brand-name {
    font-size: 0.9rem;
  }
  .brand-sub {
    font-size: 0.58rem;
    letter-spacing: 0.1em;
  }
  .nav.open .nav-links {
    display: flex;
    flex-direction: column;
    order: 10;
    width: 100%;
    border-top: 1px solid var(--border-0);
    padding-top: 0.75rem;
    margin-top: 0.25rem;
    gap: 0.1rem;
  }
  .nav.open .nav-actions {
    display: flex;
    order: 9;
    margin-left: auto;
  }
  .nav.open .nav-link {
    width: 100%;
    border-radius: var(--r-sm);
    padding: 0.65rem 1rem;
  }
}

@media (max-width: 640px) {
  section { padding: 4rem 0; }
  .hero { padding-top: calc(var(--nav-h) + 1rem); padding-bottom: 2.5rem; }
  .about-feature-list { grid-template-columns: 1fr; }
  .sectors-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-grid-4 { grid-template-columns: 1fr; }
  .gallery-item.featured { grid-column: span 1; aspect-ratio: 16/9; }
  .form-row-2 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .modal-body { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .brand-name {
    font-size: 0.82rem;
  }
  .brand-sub {
    font-size: 0.52rem;
    letter-spacing: 0.08em;
  }
  .nav-logo-wrap {
    width: 40px;
    height: 40px;
  }
}