/* 
  Sarbottam Cement Limited - Premium Corporate CSS Design System
  Designed with an Industrial, Ultra-Premium, and Modern Aesthetic
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Color Tokens */
  --primary-dark: #121518;      /* Deep Industrial Charcoal */
  --primary-slate: #1f2429;     /* Slate Gray for Dark Cards */
  --primary-gray: #333d46;      /* Medium Slate Gray */
  --accent-gold: #f59e0b;       /* Premium Gold (Rhino Sky) */
  --accent-gold-dark: #d97706;  /* Deep Gold/Amber */
  --accent-red: #e11d48;        /* Bold Crimson (Product Accent) */
  --accent-red-dark: #be123c;   /* Deep Crimson */
  --bg-light: #f8fafc;          /* Off-White Slate */
  --bg-card: #ffffff;           /* Pure White for Cards */
  --text-dark: #0f172a;         /* Near Black for high contrast text */
  --text-muted: #64748b;        /* Cool Gray Muted Text */
  --text-light: #f8fafc;        /* Off-White Text */
  
  /* Styling Tokens */
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --box-shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --box-shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.07), 0 4px 6px -4px rgb(0 0 0 / 0.07);
  --box-shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --box-shadow-inset: inset 0 2px 4px 0 rgb(0 0 0 / 0.06);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-bg-dark: rgba(18, 21, 24, 0.85);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-border-dark: rgba(255, 255, 255, 0.05);
  
  /* Transition Tokens */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base & Reset Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-light);
}
::-webkit-scrollbar-thumb {
  background: var(--primary-gray);
  border-radius: 5px;
  border: 2px solid var(--bg-light);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-gold-dark);
}

/* Core Layout & Spacing Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
  position: relative;
}

.section-dark {
  background-color: var(--primary-dark);
  color: var(--text-light);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-badge {
  display: inline-block;
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: inherit;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.section-dark .section-desc {
  color: #94a3b8;
}

/* Buttons and Interactivity */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  gap: 0.5rem;
  box-shadow: var(--box-shadow-sm);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-dark) 100%);
  color: var(--primary-dark);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px -5px rgba(245, 158, 11, 0.4);
}

.btn-secondary {
  background: transparent;
  border-color: var(--primary-gray);
  color: var(--text-dark);
}

.btn-secondary:hover {
  background-color: var(--primary-gray);
  color: var(--text-light);
  transform: translateY(-3px);
}

.btn-white {
  background-color: var(--bg-card);
  color: var(--primary-dark);
}

.btn-white:hover {
  background-color: var(--primary-dark);
  color: var(--text-light);
  transform: translateY(-3px);
}

.btn-outline-white {
  background: transparent;
  border-color: var(--text-light);
  color: var(--text-light);
}

.btn-outline-white:hover {
  background-color: var(--text-light);
  color: var(--primary-dark);
  transform: translateY(-3px);
}

/* Sticky Navigation Bar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background-color: var(--glass-bg-dark);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border-dark);
  box-shadow: var(--box-shadow-md);
  padding: 0.75rem 0;
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 5.5rem;
  transition: height var(--transition-normal);
}

.navbar.scrolled .navbar-container {
  height: 4.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--text-light);
}

.navbar.scrolled .logo {
  color: var(--text-light);
}

.logo-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-dark) 100%);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: var(--primary-dark);
  font-size: 1.25rem;
  box-shadow: var(--box-shadow-sm);
  transform: rotate(-10deg);
}

.logo-text {
  letter-spacing: -0.02em;
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-subtitle {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
  text-transform: none;
  margin-top: 0.2rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: #cbd5e1; /* Soft light gray for premium overlay visibility */
  position: relative;
  padding: 0.5rem 0;
}

.navbar.scrolled .nav-link {
  color: #cbd5e1;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-gold);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-gold);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-light);
  cursor: pointer;
}

/* Hero Section (Rhino Shadow and Floating House Integration) */
.hero {
  height: 100vh;
  min-height: 700px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--primary-dark);
}

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

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 6s ease;
}

.hero-slide.active .hero-bg {
  transform: scale(1);
}

/* Gradient overlays for cinematic effect */
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, rgba(18, 21, 24, 0.95) 0%, rgba(18, 21, 24, 0.4) 50%, rgba(18, 21, 24, 0.7) 100%);
  z-index: 2;
}

.hero-container {
  position: relative;
  z-index: 3;
  width: 100%;
  margin-top: 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 3rem;
}

.hero-content {
  color: var(--text-light);
  max-width: 750px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.5rem 1.25rem;
  border-radius: 100px;
  color: var(--accent-gold);
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transform: translateY(30px);
  opacity: 0;
  transition: all var(--transition-normal) 0.2s;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transform: translateY(30px);
  opacity: 0;
  transition: all var(--transition-normal) 0.4s;
}

.hero-title span {
  background: linear-gradient(135deg, var(--accent-gold) 0%, #fbbf24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.25rem;
  color: #cbd5e1;
  margin-bottom: 2.5rem;
  max-width: 600px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transform: translateY(30px);
  opacity: 0;
  transition: all var(--transition-normal) 0.6s;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
  transform: translateY(30px);
  opacity: 0;
  transition: all var(--transition-normal) 0.8s;
}

/* Slide activations for animations */
.hero-slide.active .hero-badge,
.hero-slide.active .hero-title,
.hero-slide.active .hero-desc,
.hero-slide.active .hero-actions {
  transform: translateY(0);
  opacity: 1;
}

/* Floating Bag on Hero Right */
.hero-product {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  transform: translateY(50px);
  opacity: 0;
  transition: all var(--transition-slow) 0.6s;
}

.hero-slide.active .hero-product {
  transform: translateY(0);
  opacity: 1;
}

.hero-product-img {
  width: 100%;
  max-width: 320px;
  filter: drop-shadow(0 25px 35px rgba(0, 0, 0, 0.6));
  animation: float 5s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(2deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

/* Hero Controls */
.hero-controls {
  position: absolute;
  bottom: 2.5rem;
  right: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 5;
}

.hero-indicator {
  width: 3rem;
  height: 3px;
  background-color: rgba(255, 255, 255, 0.25);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.hero-indicator.active {
  background-color: var(--accent-gold);
  width: 5rem;
}

/* About Us Section - The Corporate Overview */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-img-container {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--box-shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.about-img-container img {
  width: 100%;
  height: 450px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.about-visual:hover .about-img-container img {
  transform: scale(1.03);
}

.about-img-secondary {
  position: absolute;
  bottom: -3rem;
  left: -3rem;
  width: 210px;
  height: 270px;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--box-shadow-lg);
  border: 4px solid var(--bg-card);
  z-index: 5;
  transition: transform var(--transition-normal);
}

.about-img-secondary img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-visual:hover .about-img-secondary {
  transform: translateY(-5px) rotate(-3deg);
}

/* Floating Stats Box */
.about-stats-card {
  position: absolute;
  bottom: -2rem;
  right: -2rem;
  background-color: var(--primary-dark);
  color: var(--text-light);
  padding: 2rem;
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow-lg);
  border: 1px solid var(--glass-border-dark);
  max-width: 250px;
  z-index: 10;
}

.about-stats-num {
  font-family: 'Outfit', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-gold);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.about-stats-txt {
  font-size: 0.9rem;
  color: #94a3b8;
  font-weight: 500;
  line-height: 1.4;
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about-lead {
  font-size: 1.25rem;
  color: var(--primary-gray);
  font-weight: 600;
  line-height: 1.5;
}

.about-text {
  color: var(--text-muted);
}

.about-features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1rem;
}

.about-feat-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.about-feat-icon {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--accent-gold-dark);
  padding: 0.5rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-feat-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.about-feat-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Flagship Products (Featuring N-CEM UltraStrong) */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.product-card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius-md);
  border: 1px solid #e2e8f0;
  overflow: hidden;
  box-shadow: var(--box-shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary-gray);
  transition: background var(--transition-fast);
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow-lg);
  border-color: #cbd5e1;
}

.product-card.premium::before {
  background: linear-gradient(90deg, var(--accent-red) 0%, var(--accent-gold) 100%);
}

.product-card:hover::before {
  background: var(--accent-gold);
}

.product-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background-color: var(--accent-red);
  color: var(--text-light);
  font-family: 'Outfit', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: var(--box-shadow-sm);
  z-index: 5;
}

.product-visual {
  height: 280px;
  background-color: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  overflow: hidden;
  position: relative;
}

.product-visual img {
  height: 90%;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-normal);
}

.product-card:hover .product-visual img {
  transform: scale(1.08) rotate(2deg);
}

.product-info {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.product-subtitle {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-gold-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.product-desc {
  color: var(--text-muted);
  font-size: 0.925rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.product-specs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-top: 1px solid #f1f5f9;
  padding-top: 1.25rem;
  margin-bottom: 1.5rem;
}

.product-spec-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.product-spec-lbl {
  color: var(--text-muted);
}

.product-spec-val {
  font-weight: 600;
  color: var(--text-dark);
}

/* Technology & Innovation Section (VRM Focus) */
.tech-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.tech-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.tech-headline {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.2;
}

.tech-highlight {
  color: var(--accent-gold);
}

.tech-text {
  color: #cbd5e1;
}

.tech-features {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin: 1rem 0;
}

.tech-feat-card {
  background-color: var(--primary-slate);
  padding: 1.25rem 1.5rem;
  border-radius: var(--border-radius-sm);
  border-left: 4px solid var(--accent-gold);
  display: flex;
  gap: 1rem;
  transition: transform var(--transition-fast);
}

.tech-feat-card:hover {
  transform: translateX(5px);
}

.tech-feat-icon {
  color: var(--accent-gold);
  font-size: 1.25rem;
}

.tech-feat-txt h4 {
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-light);
}

.tech-feat-txt p {
  font-size: 0.85rem;
  color: #94a3b8;
}

/* Interactive Comparison (VRM vs Traditional Ball Mill) */
.comparison-container {
  background-color: var(--primary-slate);
  border-radius: var(--border-radius-md);
  padding: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--box-shadow-lg);
}

.comparison-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 1.25rem;
}

.comparison-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-light);
}

.comparison-toggle {
  display: inline-flex;
  background-color: var(--primary-dark);
  padding: 0.35rem;
  border-radius: 100px;
}

.toggle-btn {
  padding: 0.5rem 1.25rem;
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  background: transparent;
  color: #94a3b8;
  transition: all var(--transition-fast);
}

.toggle-btn.active {
  background-color: var(--accent-gold);
  color: var(--primary-dark);
  box-shadow: var(--box-shadow-sm);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  transition: opacity var(--transition-normal);
}

.comparison-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.comp-header {
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.comp-header.vrm {
  color: var(--accent-gold);
}

.comp-header.ball {
  color: #94a3b8;
}

.comp-item {
  background-color: var(--primary-dark);
  padding: 1rem 1.25rem;
  border-radius: var(--border-radius-sm);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.comp-lbl {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: #64748b;
  font-weight: 600;
}

.comp-val {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-light);
}

.comp-bar {
  height: 4px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  margin-top: 0.5rem;
  position: relative;
  overflow: hidden;
}

.comp-bar-fill {
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  border-radius: 2px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.vrm-fill {
  background-color: var(--accent-gold);
}

.ball-fill {
  background-color: #64748b;
}

/* Interactive Cement Calculator */
.calc-card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-lg);
  border: 1px solid #e2e8f0;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
}

.calc-inputs {
  padding: 3rem;
  background-color: #f8fafc;
  border-right: 1px solid #e2e8f0;
}

.calc-results {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.calc-title {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 0.75rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  border: 2px solid #cbd5e1;
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-card);
  color: var(--text-dark);
  outline: none;
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-gold-dark);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

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

.dimension-box {
  position: relative;
}

.dimension-unit {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
}

.dimension-box .form-control {
  padding-right: 2.5rem;
}

/* Material Ratios Box */
.ratio-info {
  background-color: rgba(245, 158, 11, 0.05);
  border: 1px dashed rgba(245, 158, 11, 0.3);
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
  color: var(--primary-gray);
  margin-top: 1.5rem;
}

.ratio-info strong {
  color: var(--accent-gold-dark);
}

/* Results Display */
.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.results-badge {
  background-color: rgba(16, 185, 129, 0.1);
  color: #10b981;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
}

.results-summary {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background-color: var(--bg-light);
  padding: 1.5rem 2rem;
  border-radius: var(--border-radius-md);
  border-left: 6px solid var(--accent-gold);
  margin-bottom: 2rem;
}

.results-summary-icon {
  background-color: var(--accent-gold);
  color: var(--primary-dark);
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.results-summary-text {
  display: flex;
  flex-direction: column;
}

.results-summary-lbl {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.results-summary-val {
  font-family: 'Outfit', sans-serif;
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary-dark);
  line-height: 1.1;
}

.results-summary-val span {
  font-size: 1.1rem;
  font-weight: 600;
}

.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.result-item {
  background-color: var(--bg-light);
  padding: 1.25rem;
  border-radius: var(--border-radius-sm);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border: 1px solid #f1f5f9;
}

.result-item-lbl {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.result-item-val {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
}

.result-item-unit {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.calc-footer {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid #e2e8f0;
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calc-disclaimer {
  max-width: 70%;
  line-height: 1.4;
}

/* Landmark Projects & Media Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.gallery-card {
  position: relative;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  height: 350px;
  box-shadow: var(--box-shadow-md);
  cursor: pointer;
}

.gallery-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform var(--transition-slow);
}

.gallery-card:hover .gallery-bg {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, rgba(18, 21, 24, 0.95) 0%, rgba(18, 21, 24, 0.3) 60%, rgba(18, 21, 24, 0) 100%);
  z-index: 2;
  transition: background var(--transition-normal);
}

.gallery-card:hover .gallery-overlay {
  background: linear-gradient(0deg, rgba(18, 21, 24, 0.98) 0%, rgba(18, 21, 24, 0.5) 60%, rgba(18, 21, 24, 0.1) 100%);
}

.gallery-info {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 2rem;
  z-index: 3;
  color: var(--text-light);
  transform: translateY(15px);
  transition: transform var(--transition-normal);
}

.gallery-card:hover .gallery-info {
  transform: translateY(0);
}

.gallery-cat {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-gold);
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.gallery-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.gallery-desc {
  font-size: 0.85rem;
  color: #cbd5e1;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity var(--transition-normal), max-height var(--transition-normal);
}

.gallery-card:hover .gallery-desc {
  opacity: 1;
  max-height: 80px;
  margin-top: 0.5rem;
}

/* Contact Us & Corporate Info */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
}

.contact-card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow-md);
  padding: 3rem;
  border: 1px solid #e2e8f0;
}

.contact-title {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

.contact-info-col {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.info-block {
  display: flex;
  gap: 1.25rem;
}

.info-icon {
  width: 3.5rem;
  height: 3.5rem;
  background-color: var(--bg-card);
  box-shadow: var(--box-shadow-md);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold-dark);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.info-details {
  display: flex;
  flex-direction: column;
}

.info-lbl {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.info-val {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
  line-height: 1.5;
}

.info-val a:hover {
  color: var(--accent-gold);
}

/* Factory Address Info Design (Specific details from user's image) */
.factory-badge {
  display: inline-block;
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

/* Floating Form Label Styles */
.form-group-floating {
  position: relative;
  margin-bottom: 1.75rem;
}

.form-group-floating .form-control {
  padding: 1.2rem 1rem 0.5rem 1rem;
  height: 3.5rem;
}

.form-group-floating label {
  position: absolute;
  left: 1rem;
  top: 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  pointer-events: none;
}

.form-group-floating .form-control:focus ~ label,
.form-group-floating .form-control:not(:placeholder-shown) ~ label {
  top: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-gold-dark);
}

/* Footer Section */
.footer {
  background-color: #0b0d0f;
  color: #cbd5e1;
  padding: 5rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-logo {
  color: var(--text-light);
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #94a3b8;
}

.footer-subtitle {
  font-family: 'Outfit', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  position: relative;
}

.footer-subtitle::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.5rem;
  width: 2rem;
  height: 2px;
  background-color: var(--accent-gold);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9rem;
  color: #94a3b8;
}

.footer-link:hover {
  color: var(--accent-gold);
  transform: translateX(3px);
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.footer-social-icon {
  width: 2.5rem;
  height: 2.5rem;
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #cbd5e1;
  transition: all var(--transition-fast);
}

.footer-social-icon:hover {
  background-color: var(--accent-gold);
  color: var(--primary-dark);
  transform: translateY(-3px);
}

.footer-legal {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #64748b;
}

.footer-legal-links {
  display: flex;
  gap: 2rem;
}

/* Campaign Poster Cards */
.campaign-card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
  border: 1px solid #e2e8f0;
  transition: all var(--transition-normal);
  display: flex;
}

.campaign-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-lg);
  border-color: #cbd5e1;
}

.campaign-card img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

/* Directory Cards */
.directory-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-lg) !important;
  border-color: #cbd5e1 !important;
}

/* Animations & Scroll Reveals */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3.25rem;
  }
  .about-grid, .tech-container, .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .about-visual {
    max-width: 600px;
    margin: 0 auto;
  }
  .about-img-secondary {
    width: 150px;
    height: 190px;
    left: -1.5rem;
    bottom: -1.5rem;
    border-width: 3px;
  }
  .about-stats-card {
    right: 0;
    bottom: -1rem;
  }
  .products-grid, .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .directory-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  .calc-card {
    grid-template-columns: 1fr;
  }
  .calc-inputs {
    border-right: none;
    border-bottom: 1px solid #e2e8f0;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar-container {
    height: 4.5rem;
  }
  .nav-menu {
    position: fixed;
    top: 4.5rem;
    left: -100%;
    width: 100%;
    height: calc(100vh - 4.5rem);
    background-color: var(--primary-dark);
    flex-direction: column;
    padding: 3rem 0;
    gap: 2rem;
    transition: left var(--transition-normal);
    z-index: 999;
  }
  .nav-menu.active {
    left: 0;
  }
  .nav-toggle {
    display: block;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 4rem;
  }
  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-product {
    display: none; /* Hide product bag on smaller mobile screens for layout clarity */
  }
  .section {
    padding: 4rem 0;
  }
  .section-title {
    font-size: 2rem;
  }
  .about-img-secondary {
    display: none;
  }
  .products-grid, .gallery-grid {
    grid-template-columns: 1fr;
  }
  .directory-grid {
    grid-template-columns: 1fr !important;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-legal {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}