/**
 * Ahmad Steel Works (احمد سٹیل ورکس)
 * Professional Industrial Steel Fabrication Stylesheet
 * Sialkot, Punjab, Pakistan
 */

/* ==========================================================================
   1. CSS Variables & Design System
   ========================================================================== */
:root {
  --color-black: #17191d;
  --color-black-deep: #0f1013;
  --color-steel-dark: #20252b;
  --color-steel-gray: #292e34;
  --color-steel-card: #242930;
  --color-steel-card-hover: #2d333b;
  --color-silver: #bfc5cb;
  --color-silver-light: #e4e7eb;
  --color-silver-muted: #8e96a0;
  --color-copper: #d89c43;
  --color-copper-light: #e7af5c;
  --color-copper-glow: rgba(216, 156, 67, 0.25);
  --color-white: #ffffff;
  --color-whatsapp: #25d366;
  --color-whatsapp-dark: #128c7e;
  --color-danger: #e63946;
  --color-success: #2a9d8f;

  --border-steel: rgba(191, 197, 203, 0.15);
  --border-steel-strong: rgba(191, 197, 203, 0.28);
  --border-copper: rgba(216, 156, 67, 0.4);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-heading: 'Rajdhani', 'Montserrat', -apple-system, sans-serif;
  --font-urdu: 'Noto Nastaliq Urdu', 'Urdu Typesetting', 'Jameel Noori Nastaleeq', 'Tahoma', sans-serif;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  --shadow-copper: 0 4px 20px rgba(216, 156, 67, 0.3);

  --container-max: 1240px;
  --header-height: 80px;
  --topbar-height: 38px;
}

/* ==========================================================================
   2. Reset & Base Styles
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-black);
  color: var(--color-silver-light);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
}

/* ==========================================================================
   3. Typography & Utilities
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-white);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: 0.5px;
}

h1 { font-size: clamp(2.2rem, 4.5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.8rem); }
h4 { font-size: clamp(1.1rem, 1.6vw, 1.35rem); }

p {
  color: var(--color-silver);
  font-size: 1.02rem;
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

.urdu-text {
  font-family: var(--font-urdu);
  direction: rtl;
  display: inline-block;
  font-weight: 500;
  letter-spacing: 0;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.section {
  padding: 85px 0;
  position: relative;
}

.section-dark {
  background-color: var(--color-black);
}

.section-steel {
  background-color: var(--color-steel-dark);
}

.section-gray {
  background-color: var(--color-steel-gray);
}

/* Section Headers */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px auto;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(216, 156, 67, 0.12);
  border: 1px solid var(--border-copper);
  border-radius: 4px;
  color: var(--color-copper);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background-color: var(--color-copper);
  border-radius: 50%;
  display: inline-block;
}

.section-title {
  margin-bottom: 16px;
}

.section-title span.accent {
  color: var(--color-copper);
}

.section-desc {
  font-size: 1.08rem;
  color: var(--color-silver);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  border-radius: 4px;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-copper) 0%, #b87e2b 100%);
  color: #0d0f12;
  box-shadow: var(--shadow-copper);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-copper-light) 0%, var(--color-copper) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(216, 156, 67, 0.45);
  color: #000;
}

.btn-outline {
  background: transparent;
  color: var(--color-silver-light);
  border: 1px solid var(--border-steel-strong);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--color-copper);
  color: var(--color-copper);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: var(--color-whatsapp);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background-color: #1ebe5d;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 34px;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
}

/* ==========================================================================
   4. Header & Navigation (Fixed, Sticky & Aligned)
   ========================================================================== */
.site-topbar {
  background-color: var(--color-black-deep);
  border-bottom: 1px solid var(--border-steel);
  font-size: 0.82rem;
  color: var(--color-silver-muted);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-silver);
}

.topbar-item svg {
  width: 14px;
  height: 14px;
  color: var(--color-copper);
}

.topbar-item a:hover {
  color: var(--color-copper);
}

/* Main Fixed Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(23, 25, 29, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-steel);
  transition: all var(--transition-normal);
}

.site-header.is-scrolled {
  background-color: rgba(15, 16, 19, 0.98);
  box-shadow: var(--shadow-md);
  border-bottom-color: rgba(216, 156, 67, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 15px;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}

.logo-symbol {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-steel-card) 0%, var(--color-steel-gray) 100%);
  border: 1px solid var(--color-copper);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-copper);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.logo-symbol svg {
  width: 26px;
  height: 26px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.1;
  letter-spacing: 0.5px;
}

.logo-title span {
  color: var(--color-copper);
}

.logo-sub {
  font-size: 0.72rem;
  color: var(--color-silver);
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo-sub .urdu-name {
  font-family: var(--font-urdu);
  color: var(--color-copper-light);
  font-size: 0.85rem;
}

/* Desktop Navigation */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-silver-light);
  border-radius: 4px;
  position: relative;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  color: var(--color-copper);
  background: rgba(216, 156, 67, 0.09);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 14px;
  right: 14px;
  height: 2px;
  background-color: var(--color-copper);
  border-radius: 2px;
}

/* Header Action Right */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.mobile-toggle {
  display: none;
  background: var(--color-steel-card);
  border: 1px solid var(--border-steel-strong);
  color: var(--color-white);
  padding: 9px;
  border-radius: 6px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}

.mobile-toggle svg {
  width: 24px;
  height: 24px;
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  display: none;
  background-color: var(--color-steel-dark);
  border-bottom: 2px solid var(--border-copper);
  padding: 20px;
  box-shadow: var(--shadow-lg);
}

.mobile-nav-drawer.is-open {
  display: block;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-silver-light);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-steel);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  background: rgba(216, 156, 67, 0.12);
  color: var(--color-copper);
  border-color: var(--border-copper);
}

.mobile-nav-actions {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ==========================================================================
   5. Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 82vh;
  display: flex;
  align-items: center;
  background-color: var(--color-black);
  overflow: hidden;
  padding: 90px 0;
}

.hero-bg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.38) contrast(1.15);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(15, 16, 19, 0.95) 0%,
    rgba(23, 25, 29, 0.85) 50%,
    rgba(23, 25, 29, 0.6) 100%
  );
  z-index: 2;
}

.hero-overlay::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(to top, var(--color-black) 0%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 780px;
}

.hero-location-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-copper);
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--color-copper-light);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-location-tag svg {
  width: 16px;
  height: 16px;
  color: var(--color-copper);
}

.hero-title {
  margin-bottom: 22px;
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.8);
}

.hero-title span.accent {
  color: var(--color-copper);
}

.hero-description {
  font-size: 1.18rem;
  color: var(--color-silver-light);
  margin-bottom: 34px;
  max-width: 680px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-trust-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 25px;
  padding-top: 25px;
  border-top: 1px solid var(--border-steel);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-silver);
}

.trust-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-copper);
  flex-shrink: 0;
}

/* ==========================================================================
   6. Cards & Grid Layouts
   ========================================================================== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

/* Service Card */
.service-card {
  background-color: var(--color-steel-card);
  border: 1px solid var(--border-steel);
  border-radius: 8px;
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-copper);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(216, 156, 67, 0.15);
  background-color: var(--color-steel-card-hover);
}

.service-image-box {
  position: relative;
  height: 220px;
  overflow: hidden;
  background-color: var(--color-steel-dark);
}

.service-image-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-image-box img {
  transform: scale(1.06);
}

.service-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(15, 16, 19, 0.88);
  border: 1px solid var(--border-copper);
  padding: 4px 10px;
  border-radius: 4px;
  color: var(--color-copper);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.service-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-title {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--color-white);
}

.service-desc {
  font-size: 0.95rem;
  color: var(--color-silver);
  margin-bottom: 18px;
  flex-grow: 1;
}

.service-features {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-steel);
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--color-silver-light);
  margin-bottom: 8px;
}

.service-features li:last-child {
  margin-bottom: 0;
}

.service-features svg {
  width: 14px;
  height: 14px;
  color: var(--color-copper);
  flex-shrink: 0;
}

.service-actions {
  display: flex;
  gap: 10px;
}

/* Feature/Value Box */
.feature-box {
  background: var(--color-steel-card);
  border: 1px solid var(--border-steel);
  border-radius: 8px;
  padding: 30px;
  transition: all var(--transition-normal);
  position: relative;
}

.feature-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-copper);
  transition: width var(--transition-normal);
  border-radius: 8px 8px 0 0;
}

.feature-box:hover {
  transform: translateY(-5px);
  border-color: var(--border-copper);
  box-shadow: var(--shadow-md);
}

.feature-box:hover::before {
  width: 100%;
}

.feature-icon {
  width: 54px;
  height: 54px;
  background: rgba(216, 156, 67, 0.12);
  border: 1px solid var(--border-copper);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-copper);
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

/* Process Timeline / Steps */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 25px;
  position: relative;
}

.process-step {
  background: var(--color-steel-card);
  border: 1px solid var(--border-steel);
  border-radius: 8px;
  padding: 28px 24px;
  position: relative;
  transition: all var(--transition-normal);
}

.process-step:hover {
  border-color: var(--border-copper);
  transform: translateY(-4px);
}

.process-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-copper);
  line-height: 1;
  margin-bottom: 12px;
  opacity: 0.85;
}

.process-title {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

/* Product Card (Catalogue) */
.product-card {
  background: var(--color-steel-card);
  border: 1px solid var(--border-steel);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.product-card:hover {
  border-color: var(--border-copper);
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.product-thumb {
  height: 230px;
  position: relative;
  overflow: hidden;
  background-color: var(--color-steel-dark);
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-thumb img {
  transform: scale(1.05);
}

.product-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 16, 19, 0.9);
  border: 1px solid var(--border-copper);
  padding: 4px 10px;
  border-radius: 4px;
  color: var(--color-copper);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.product-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.product-desc {
  font-size: 0.92rem;
  color: var(--color-silver);
  margin-bottom: 18px;
  flex-grow: 1;
}

.product-specs {
  background: rgba(0, 0, 0, 0.25);
  border-radius: 6px;
  padding: 12px;
  margin-bottom: 20px;
  font-size: 0.85rem;
}

.product-specs div {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 1px dashed rgba(191, 197, 203, 0.12);
}

.product-specs div:last-child {
  border-bottom: none;
}

.product-specs span.label {
  color: var(--color-silver-muted);
}

.product-specs span.value {
  color: var(--color-silver-light);
  font-weight: 500;
}

.product-actions {
  display: flex;
  gap: 10px;
}

/* ==========================================================================
   7. Gallery & Lightbox
   ========================================================================== */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  background: var(--color-steel-card);
  color: var(--color-silver-light);
  border: 1px solid var(--border-steel);
  padding: 9px 18px;
  border-radius: 4px;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-copper);
  color: var(--color-copper);
}

.filter-btn.active {
  background: var(--color-copper);
  color: #0e1013;
  border-color: var(--color-copper);
  font-weight: 700;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 25px;
}

.gallery-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background-color: var(--color-steel-card);
  border: 1px solid var(--border-steel);
  aspect-ratio: 4 / 3;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to top,
    rgba(15, 16, 19, 0.95) 0%,
    rgba(15, 16, 19, 0.4) 60%,
    transparent 100%
  );
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  transition: opacity var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-copper);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.gallery-title {
  color: var(--color-white);
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.gallery-caption {
  font-size: 0.85rem;
  color: var(--color-silver);
}

/* Lightbox Modal */
.lightbox-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 11, 14, 0.96);
  z-index: 9999;
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 30px;
}

.lightbox-modal.is-active {
  display: flex;
}

.lightbox-container {
  max-width: 950px;
  width: 100%;
  background: var(--color-steel-dark);
  border: 1px solid var(--border-copper);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.lightbox-image-wrap {
  max-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.lightbox-image-wrap img {
  max-height: 70vh;
  width: auto;
  object-fit: contain;
}

.lightbox-details {
  padding: 20px 24px;
  background: var(--color-steel-card);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lightbox-title {
  font-size: 1.2rem;
  color: var(--color-white);
  margin-bottom: 4px;
}

.lightbox-desc {
  font-size: 0.9rem;
  color: var(--color-silver);
}

.lightbox-close {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 40px;
  height: 40px;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid var(--border-steel);
  border-radius: 50%;
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: background var(--transition-fast);
}

.lightbox-close:hover {
  background: var(--color-copper);
  color: #000;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid var(--border-steel);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lightbox-nav:hover {
  background: var(--color-copper);
  color: #000;
}

.lightbox-prev { left: 15px; }
.lightbox-next { right: 15px; }

/* ==========================================================================
   8. Blog & Article Components
   ========================================================================== */
.blog-card {
  background: var(--color-steel-card);
  border: 1px solid var(--border-steel);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.blog-card:hover {
  border-color: var(--border-copper);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.blog-thumb {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.blog-card:hover .blog-thumb img {
  transform: scale(1.06);
}

.blog-category-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 16, 19, 0.9);
  border: 1px solid var(--border-copper);
  color: var(--color-copper);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.blog-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 0.82rem;
  color: var(--color-silver-muted);
  margin-bottom: 12px;
}

.blog-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}

.blog-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
  line-height: 1.35;
}

.blog-title a:hover {
  color: var(--color-copper);
}

.blog-excerpt {
  font-size: 0.94rem;
  color: var(--color-silver);
  margin-bottom: 20px;
  flex-grow: 1;
}

.blog-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-copper);
  font-weight: 600;
  font-size: 0.92rem;
}

.blog-read-more svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.blog-read-more:hover svg {
  transform: translateX(4px);
}

/* Single Article Layout */
.article-header {
  padding: 60px 0 40px 0;
  background: var(--color-steel-dark);
  border-bottom: 1px solid var(--border-steel);
}

.article-content-wrapper {
  max-width: 820px;
  margin: 0 auto;
}

.article-featured-image {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-steel);
  margin: 35px 0;
  max-height: 480px;
}

.article-featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-body {
  font-size: 1.08rem;
  line-height: 1.8;
  color: var(--color-silver-light);
}

.article-body h2 {
  font-size: 1.8rem;
  margin: 40px 0 18px 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-steel);
  color: var(--color-white);
}

.article-body h3 {
  font-size: 1.4rem;
  margin: 30px 0 14px 0;
  color: var(--color-copper-light);
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul, .article-body ol {
  margin: 20px 0 25px 25px;
}

.article-body li {
  margin-bottom: 10px;
  list-style: disc;
}

.article-body blockquote {
  border-left: 4px solid var(--color-copper);
  padding: 16px 24px;
  background: rgba(216, 156, 67, 0.08);
  border-radius: 0 6px 6px 0;
  margin: 30px 0;
  font-style: italic;
  color: var(--color-silver-light);
}

.article-cta-box {
  background: var(--color-steel-card);
  border: 1px solid var(--border-copper);
  border-radius: 8px;
  padding: 35px;
  margin-top: 50px;
  text-align: center;
}

/* ==========================================================================
   9. Contact Form & WhatsApp Configurator
   ========================================================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 40px;
}

.contact-info-card {
  background: var(--color-steel-card);
  border: 1px solid var(--border-steel);
  border-radius: 8px;
  padding: 35px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
  margin: 30px 0;
}

.contact-info-item {
  display: flex;
  gap: 16px;
}

.contact-icon-wrap {
  width: 48px;
  height: 48px;
  background: rgba(216, 156, 67, 0.12);
  border: 1px solid var(--border-copper);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-copper);
  flex-shrink: 0;
}

.contact-icon-wrap svg {
  width: 22px;
  height: 22px;
}

.contact-item-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--color-copper);
  font-weight: 600;
  letter-spacing: 0.8px;
  margin-bottom: 4px;
}

.contact-item-value {
  font-size: 1.05rem;
  color: var(--color-white);
  font-weight: 500;
}

.contact-item-sub {
  font-size: 0.85rem;
  color: var(--color-silver-muted);
}

/* Form Styles */
.form-card {
  background: var(--color-steel-card);
  border: 1px solid var(--border-steel);
  border-radius: 8px;
  padding: 35px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-silver-light);
  margin-bottom: 8px;
}

.form-label span.req {
  color: var(--color-copper);
}

.form-control {
  width: 100%;
  padding: 13px 16px;
  background: var(--color-steel-dark);
  border: 1px solid var(--border-steel-strong);
  border-radius: 5px;
  color: var(--color-white);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-copper);
  box-shadow: 0 0 0 3px rgba(216, 156, 67, 0.2);
}

.form-control::placeholder {
  color: #636b76;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23bfc5cb' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
  padding-right: 40px;
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-alert {
  padding: 14px 18px;
  border-radius: 6px;
  margin-bottom: 22px;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.form-alert-success {
  background: rgba(42, 157, 143, 0.15);
  border: 1px solid var(--color-success);
  color: #70e0d0;
}

.form-alert-error {
  background: rgba(230, 57, 70, 0.15);
  border: 1px solid var(--color-danger);
  color: #ff8b94;
}

/* Honeypot field (hidden from human users) */
.form-hp {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  position: absolute !important;
  left: -9999px !important;
}

/* Map Embed */
.map-container {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-steel);
  height: 380px;
  background: var(--color-steel-dark);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
  filter: invert(90%) hue-rotate(180deg) contrast(1.1);
}

/* ==========================================================================
   10. CRITICAL: Left-Side Floating WhatsApp Button
   ========================================================================== */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 25px;
  left: 25px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: var(--color-whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  text-decoration: none;
}

.floating-whatsapp-btn:hover {
  transform: scale(1.12);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.65);
  color: #ffffff;
}

.floating-whatsapp-btn svg {
  width: 34px;
  height: 34px;
}

/* Pulse animation on floating WhatsApp */
.floating-whatsapp-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--color-whatsapp);
  opacity: 0.6;
  z-index: -1;
  animation: wa-pulse 2.2s infinite;
}

@keyframes wa-pulse {
  0% {
    transform: scale(1);
    opacity: 0.6;
  }
  70% {
    transform: scale(1.45);
    opacity: 0;
  }
  100% {
    transform: scale(1.45);
    opacity: 0;
  }
}

.floating-whatsapp-tooltip {
  position: absolute;
  left: 72px;
  background: var(--color-black-deep);
  color: var(--color-white);
  border: 1px solid var(--border-copper);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-10px);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.floating-whatsapp-btn:hover .floating-whatsapp-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* Back to Top Button */
.back-to-top-btn {
  position: fixed;
  bottom: 25px;
  right: 25px;
  z-index: 990;
  width: 46px;
  height: 46px;
  background: var(--color-steel-card);
  border: 1px solid var(--border-steel-strong);
  border-radius: 50%;
  color: var(--color-silver-light);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.back-to-top-btn.is-visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top-btn:hover {
  background: var(--color-copper);
  color: #000;
  border-color: var(--color-copper);
  transform: translateY(-3px);
}

.back-to-top-btn svg {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   11. Footer
   ========================================================================== */
.site-footer {
  background-color: var(--color-black-deep);
  border-top: 1px solid var(--border-steel);
  padding: 70px 0 0 0;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 60px;
}

.footer-col-title {
  font-size: 1.15rem;
  color: var(--color-white);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background-color: var(--color-copper);
}

.footer-about-text {
  font-size: 0.92rem;
  color: var(--color-silver);
  margin: 18px 0 20px 0;
  line-height: 1.6;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.92rem;
  color: var(--color-silver);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.footer-links a svg {
  width: 12px;
  height: 12px;
  color: var(--color-copper);
  transition: transform var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-copper);
  transform: translateX(4px);
}

.footer-contact-list li {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.92rem;
  color: var(--color-silver);
}

.footer-contact-list svg {
  width: 18px;
  height: 18px;
  color: var(--color-copper);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact-list a:hover {
  color: var(--color-copper);
}

.footer-verified-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--color-silver-muted);
}

.footer-verified-badge svg {
  width: 14px;
  height: 14px;
  color: #2a9d8f;
}

.footer-bottom {
  border-top: 1px solid rgba(191, 197, 203, 0.1);
  padding: 22px 0;
  font-size: 0.85rem;
  color: var(--color-silver-muted);
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

/* ==========================================================================
   12. Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .site-nav {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .header-actions .btn-quote-desktop {
    display: none;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  .site-topbar {
    display: none;
  }

  .section {
    padding: 60px 0;
  }

  .hero-section {
    min-height: auto;
    padding: 70px 0 60px 0;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .floating-whatsapp-btn {
    bottom: 20px;
    left: 20px;
    width: 52px;
    height: 52px;
  }

  .floating-whatsapp-btn svg {
    width: 28px;
    height: 28px;
  }

  .floating-whatsapp-tooltip {
    display: none;
  }

  .back-to-top-btn {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .logo-title {
    font-size: 1.15rem;
  }

  .logo-symbol {
    width: 38px;
    height: 38px;
  }

  .logo-symbol svg {
    width: 20px;
    height: 20px;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }
}