/* ==========================================================================
   DASKA ENGINEERING — AGRICULTURAL & INDUSTRIAL MACHINERY
   Modern Industrial Custom CSS
   Color Palette:
   - Industrial Black: #111820
   - Safety Yellow: #F5B700
   - Steel Grey: #394752
   - Metallic Silver: #B8C1C8
   - Pure White: #FFFFFF
   - Light Industrial Background: #F4F6F8
   ========================================================================== */

/* 1. CSS VARIABLES & THEME SETUP */
:root {
  --color-black: #111820;
  --color-black-dark: #0a0e14;
  --color-black-surface: #18212a;
  --color-black-elevated: #202b36;
  --color-yellow: #F5B700;
  --color-yellow-hover: #dda400;
  --color-yellow-light: #fff8e1;
  --color-yellow-glow: rgba(245, 183, 0, 0.25);
  --color-steel: #394752;
  --color-steel-dark: #2a353e;
  --color-steel-light: #4f5f6d;
  --color-metallic: #B8C1C8;
  --color-metallic-light: #e2e7ec;
  --color-white: #FFFFFF;
  --color-bg-light: #F4F6F8;
  --color-border: #d7dee3;
  --color-border-dark: #2a3744;
  --color-whatsapp: #25D366;
  --color-whatsapp-hover: #1ebc57;
  
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Rajdhani', 'Montserrat', -apple-system, sans-serif;
  
  --header-height: 80px;
  --topbar-height: 40px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 2px 4px rgba(17, 24, 32, 0.05);
  --shadow-md: 0 4px 12px rgba(17, 24, 32, 0.08);
  --shadow-lg: 0 12px 28px rgba(17, 24, 32, 0.12);
  --shadow-xl: 0 20px 40px rgba(17, 24, 32, 0.16);
  --shadow-yellow: 0 8px 24px rgba(245, 183, 0, 0.35);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

/* 2. BASE RESETS & TYPOGRAPHY */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg-light);
  color: var(--color-steel-dark);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-black);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.7rem); }
h4 { font-size: 1.2rem; }

p {
  margin-bottom: 1.25rem;
  color: var(--color-steel);
  font-size: 1rem;
}

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

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

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

ul, ol {
  list-style: none;
}

/* Utility Containers & Grids */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-wide {
  width: 100%;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 80px 0;
  position: relative;
}

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

.section-dark h2, .section-dark h3, .section-dark h4 {
  color: var(--color-white);
}

.section-dark p {
  color: var(--color-metallic);
}

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

.section-steel p {
  color: var(--color-metallic-light);
}

.section-title-wrap {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 50px auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-yellow-light);
  color: var(--color-black);
  border: 1px solid var(--color-yellow);
  padding: 4px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-heading);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.section-dark .section-tag {
  background-color: rgba(245, 183, 0, 0.15);
  color: var(--color-yellow);
  border-color: rgba(245, 183, 0, 0.4);
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--color-steel);
}

.section-dark .section-subtitle {
  color: var(--color-metallic);
}

/* 3. BUTTONS & INDUSTRIAL UI COMPONENTS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  line-height: 1;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn-primary {
  background-color: var(--color-yellow);
  color: var(--color-black);
  border-color: var(--color-yellow);
  box-shadow: 0 4px 14px rgba(245, 183, 0, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-yellow-hover);
  border-color: var(--color-yellow-hover);
  box-shadow: var(--shadow-yellow);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-metallic);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  color: var(--color-yellow);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-black);
  border-color: var(--color-black);
}

.btn-outline-dark:hover {
  background-color: var(--color-black);
  color: var(--color-yellow);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  border-color: var(--color-whatsapp);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  border-color: var(--color-whatsapp-hover);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.btn-lg {
  padding: 16px 34px;
  font-size: 1.15rem;
}

/* 4. PROFESSIONAL FIXED / STICKY HEADER */
.site-header-wrapper {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background-color: var(--color-black);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  transition: all var(--transition-normal);
}

/* Top Notification / Info Bar */
.top-info-bar {
  background-color: var(--color-black-dark);
  color: var(--color-metallic);
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 7px 0;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
}

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

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.top-bar-item svg {
  width: 14px;
  height: 14px;
  color: var(--color-yellow);
}

.top-bar-item a:hover {
  color: var(--color-yellow);
}

.badge-verified-top {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background-color: rgba(37, 211, 102, 0.15);
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.3);
  padding: 1px 8px;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Main Navigation Bar */
.main-nav-bar {
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 20px;
}

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

.logo-symbol {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-yellow) 0%, #b8860b 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 10px rgba(245, 183, 0, 0.3);
}

.logo-symbol svg {
  width: 26px;
  height: 26px;
  color: var(--color-black);
}

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

.logo-brand-name {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 1.5px;
  line-height: 1;
}

.logo-brand-tag {
  font-size: 0.68rem;
  color: var(--color-yellow);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  margin-top: 3px;
}

/* Center Navigation Links - STRICTLY HORIZONTAL ON DESKTOP */
.nav-menu-desktop {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  white-space: nowrap;
}

.nav-menu-desktop li {
  margin: 0;
}

.nav-menu-desktop a {
  display: inline-block;
  padding: 8px 14px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-metallic);
  border-radius: var(--radius-sm);
  position: relative;
  transition: all var(--transition-fast);
}

.nav-menu-desktop a:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.06);
}

.nav-menu-desktop a.active {
  color: var(--color-yellow);
  background-color: rgba(245, 183, 0, 0.1);
  font-weight: 700;
}

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

/* Header Right CTA */
.header-right-action {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.header-phone-quick {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.header-phone-quick svg {
  width: 18px;
  height: 18px;
  color: var(--color-yellow);
}

.header-phone-quick:hover {
  color: var(--color-yellow);
}

/* Hamburger Button (Hidden on Desktop) */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.mobile-nav-toggle:hover {
  border-color: var(--color-yellow);
  color: var(--color-yellow);
}

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

/* Mobile Drawer Overlay */
.mobile-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 1050;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  backdrop-filter: blur(4px);
}

.mobile-drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background-color: var(--color-black);
  z-index: 1100;
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: right var(--transition-normal);
  overflow-y: auto;
  box-shadow: -6px 0 24px rgba(0, 0, 0, 0.4);
}

.mobile-nav-drawer.active {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border-dark);
  margin-bottom: 20px;
}

.mobile-drawer-close {
  background: transparent;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  padding: 6px;
}

.mobile-drawer-close:hover {
  color: var(--color-yellow);
}

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

.mobile-menu-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 30px;
}

.mobile-menu-list a {
  display: block;
  padding: 12px 16px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-metallic-light);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.mobile-menu-list a.active, .mobile-menu-list a:hover {
  background-color: rgba(245, 183, 0, 0.15);
  color: var(--color-yellow);
}

.mobile-drawer-contact {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--color-border-dark);
}

.mobile-drawer-contact .phone-box {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 15px;
}

/* 5. MANDATORY FLOATING WHATSAPP BUTTON — LEFT SIDE ONLY */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 28px;
  left: 28px; /* STRICT LEFT SIDE PLACEMENT */
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  border-radius: 50%;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
  transition: all var(--transition-normal);
  text-decoration: none;
  cursor: pointer;
}

.floating-whatsapp-btn svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.floating-whatsapp-btn:hover {
  background-color: var(--color-whatsapp-hover);
  transform: scale(1.08) translateY(-4px);
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.6);
  color: var(--color-white);
}

/* Pulse animation */
.floating-whatsapp-btn::before {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border-radius: 50%;
  border: 2px solid var(--color-whatsapp);
  animation: waPulse 2s infinite ease-out;
  pointer-events: none;
  opacity: 0.7;
}

@keyframes waPulse {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.35); opacity: 0; }
}

/* Floating Tooltip */
.whatsapp-tooltip {
  position: absolute;
  left: 72px;
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-10px);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
  border-left: 3px solid var(--color-whatsapp);
}

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

/* 6. HERO SECTION */
.hero-industrial {
  position: relative;
  background: linear-gradient(135deg, #0b1016 0%, #151d26 50%, #1c2733 100%);
  color: var(--color-white);
  padding: 100px 0 120px 0;
  overflow: hidden;
  border-bottom: 4px solid var(--color-yellow);
}

/* Industrial Grid Pattern Overlay */
.hero-industrial::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(245, 183, 0, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 183, 0, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.8;
  pointer-events: none;
}

.hero-industrial::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(245, 183, 0, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 50px;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 680px;
}

.hero-badge-industrial {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: rgba(245, 183, 0, 0.12);
  border: 1px solid var(--color-yellow);
  color: var(--color-yellow);
  padding: 6px 16px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  margin-bottom: 22px;
}

.hero-title {
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 20px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

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

.hero-description {
  font-size: 1.2rem;
  color: var(--color-metallic);
  margin-bottom: 35px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* Quick Metrics / Stats Strip */
.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-yellow);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-metallic);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Hero Machinery Showcase Graphic */
.hero-visual-card {
  position: relative;
  background: var(--color-black-surface);
  border: 2px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.hero-visual-card .machinery-banner-svg {
  width: 100%;
  height: auto;
  aspect-ratio: 16/10;
  object-fit: cover;
  background-color: #121820;
}

.hero-visual-card .card-caption {
  padding: 18px 24px;
  background-color: var(--color-black-dark);
  border-top: 1px solid var(--color-border-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-visual-card .card-caption h4 {
  color: var(--color-white);
  font-size: 1.1rem;
  margin-bottom: 2px;
}

.hero-visual-card .card-caption p {
  color: var(--color-yellow);
  font-size: 0.85rem;
  font-weight: 600;
}

/* 7. WELCOME & VALUE PROPOSITION SECTIONS */
.welcome-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.feature-check-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 25px 0;
}

.feature-check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.feature-check-item .icon-circle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--color-yellow-light);
  color: var(--color-black);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-check-item .icon-circle svg {
  width: 14px;
  height: 14px;
}

.feature-check-item span {
  font-weight: 600;
  color: var(--color-steel-dark);
}

.value-props-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.prop-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 35px 28px;
  position: relative;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.prop-card:hover {
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.prop-icon-wrap {
  width: 60px;
  height: 60px;
  background-color: var(--color-black);
  color: var(--color-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  margin-bottom: 22px;
  border: 2px solid var(--color-yellow);
}

.prop-icon-wrap svg {
  width: 32px;
  height: 32px;
}

.prop-card h3 {
  margin-bottom: 12px;
  font-size: 1.35rem;
}

/* 8. MACHINERY SHOWCASE CARDS */
.machinery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 32px;
}

.machine-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.machine-card:hover {
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-xl);
  transform: translateY(-5px);
}

.machine-image-wrapper {
  position: relative;
  background-color: #121820;
  aspect-ratio: 16/11;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.machine-image-wrapper img, .machine-image-wrapper svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.machine-card:hover .machine-image-wrapper img,
.machine-card:hover .machine-image-wrapper svg {
  transform: scale(1.04);
}

.machine-tag-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background-color: var(--color-black);
  color: var(--color-yellow);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-yellow);
  z-index: 2;
}

.machine-category-pill {
  position: absolute;
  bottom: 14px;
  right: 14px;
  background-color: rgba(17, 24, 32, 0.85);
  color: var(--color-white);
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
  z-index: 2;
}

.machine-card-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.machine-card-title {
  font-size: 1.45rem;
  margin-bottom: 10px;
  color: var(--color-black);
}

.machine-card-desc {
  font-size: 0.95rem;
  color: var(--color-steel);
  margin-bottom: 20px;
}

/* Machine Key Specs Mini-Table */
.machine-specs-list {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-bottom: 22px;
  font-size: 0.88rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed #d0d7dd;
  padding-bottom: 6px;
}

.spec-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.spec-label {
  font-weight: 600;
  color: var(--color-steel-dark);
}

.spec-val {
  color: var(--color-black);
  text-align: right;
  font-weight: 500;
}

.machine-card-actions {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* 9. CATEGORY TABS / FILTER STRIP */
.category-filter-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 45px;
}

.filter-btn {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-steel-dark);
  padding: 9px 20px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--color-black);
  color: var(--color-black);
}

.filter-btn.active {
  background-color: var(--color-black);
  color: var(--color-yellow);
  border-color: var(--color-black);
  box-shadow: 0 4px 12px rgba(17, 24, 32, 0.2);
}

/* 10. MANUFACTURING & ENGINEERING PROCESS SECTION */
.process-flow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  position: relative;
  margin-top: 40px;
}

.process-step-card {
  background-color: var(--color-black-surface);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: 30px 22px;
  position: relative;
  transition: all var(--transition-fast);
}

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

.step-num-badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-yellow);
  line-height: 1;
  margin-bottom: 12px;
}

.process-step-card h4 {
  color: var(--color-white);
  margin-bottom: 10px;
  font-size: 1.25rem;
}

.process-step-card p {
  color: var(--color-metallic);
  font-size: 0.9rem;
}

/* 11. GALLERY & VIDEO GRID */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.gallery-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.gallery-card:hover {
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.gallery-image-box {
  position: relative;
  aspect-ratio: 16/10;
  background-color: #121820;
  overflow: hidden;
}

.gallery-image-box img, .gallery-image-box svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.gallery-zoom-badge {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 32, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.gallery-card:hover .gallery-zoom-badge {
  opacity: 1;
}

.gallery-zoom-badge svg {
  width: 36px;
  height: 36px;
  color: var(--color-yellow);
}

.gallery-caption-box {
  padding: 18px 20px;
}

.gallery-caption-box h4 {
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.gallery-caption-box p {
  font-size: 0.88rem;
  color: var(--color-steel);
}

/* Video Card in Gallery */
.video-card {
  background-color: var(--color-black-surface);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.video-card:hover {
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.video-thumb-box {
  position: relative;
  aspect-ratio: 16/9;
  background-color: #0b1016;
  cursor: pointer;
}

.video-thumb-box img, .video-thumb-box svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background-color: var(--color-yellow);
  color: var(--color-black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-fast);
}

.video-thumb-box:hover .video-play-btn {
  transform: translate(-50%, -50%) scale(1.15);
  background-color: var(--color-white);
  color: var(--color-black);
}

.video-play-btn svg {
  width: 24px;
  height: 24px;
  margin-left: 3px;
}

.video-body {
  padding: 20px;
}

.video-body h4 {
  color: var(--color-white);
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.video-body p {
  color: var(--color-metallic);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.video-channel-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-yellow);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

/* 12. FAQ ACCORDION INTERFACE */
.faq-accordion-list {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-md);
}

.faq-trigger {
  width: 100%;
  padding: 22px 26px;
  text-align: left;
  background: transparent;
  border: none;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-black);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  transition: color var(--transition-fast);
}

.faq-trigger:hover {
  color: var(--color-yellow-hover);
}

.faq-trigger svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-yellow);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-trigger svg {
  transform: rotate(180deg);
}

.faq-content {
  display: none;
  padding: 0 26px 24px 26px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-steel);
  border-top: 1px solid var(--color-bg-light);
}

.faq-item.active .faq-content {
  display: block;
}

/* 13. CONTACT US / INQUIRY PAGE */
.contact-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 50px;
}

.contact-info-panel {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-dark);
}

.contact-info-panel h3 {
  color: var(--color-white);
  margin-bottom: 24px;
  border-bottom: 2px solid var(--color-yellow);
  padding-bottom: 12px;
}

.contact-detail-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 35px;
}

.contact-card-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon-box {
  width: 44px;
  height: 44px;
  background-color: rgba(245, 183, 0, 0.12);
  color: var(--color-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-yellow);
  flex-shrink: 0;
}

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

.contact-text h5 {
  font-size: 0.85rem;
  color: var(--color-metallic);
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.contact-text a, .contact-text p {
  color: var(--color-white);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0;
}

.contact-text a:hover {
  color: var(--color-yellow);
}

/* Form Styles */
.inquiry-form-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 22px;
}

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

.form-label .req {
  color: #e53e3e;
}

.form-control {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--font-main);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-light);
  color: var(--color-black);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-yellow);
  background-color: var(--color-white);
  box-shadow: 0 0 0 3px var(--color-yellow-glow);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* Alert Boxes */
.alert {
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  margin-bottom: 26px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.alert-success {
  background-color: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.alert-danger {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.alert-info {
  background-color: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1e40af;
}

/* Map Embed */
.map-container {
  width: 100%;
  height: 380px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* 14. CALL TO ACTION STRIP */
.cta-industrial-strip {
  background: linear-gradient(135deg, var(--color-black) 0%, #1c2733 100%);
  color: var(--color-white);
  padding: 60px 0;
  border-top: 3px solid var(--color-yellow);
}

.cta-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}

.cta-text-group h3 {
  color: var(--color-white);
  font-size: 2rem;
  margin-bottom: 6px;
}

.cta-text-group p {
  color: var(--color-metallic);
  font-size: 1.1rem;
}

/* 15. PROFESSIONAL 4-COLUMN FOOTER */
.site-footer {
  background-color: var(--color-black-dark);
  color: var(--color-metallic);
  border-top: 1px solid var(--color-border-dark);
  padding-top: 70px;
}

.footer-grid-4 {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr 1.1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1.25rem;
  letter-spacing: 1px;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 2px;
  background-color: var(--color-yellow);
}

.footer-col p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-metallic);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-metallic);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.footer-links-list a::before {
  content: '▸';
  color: var(--color-yellow);
  font-size: 0.9rem;
}

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

.footer-contact-items {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-yellow);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-contact-item a:hover {
  color: var(--color-yellow);
}

/* Social Icon Buttons */
.footer-social-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 15px;
}

.social-icon-btn {
  width: 42px;
  height: 42px;
  background-color: var(--color-black-surface);
  border: 1px solid var(--color-border-dark);
  color: var(--color-metallic-light);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.social-icon-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.social-icon-btn:hover {
  background-color: var(--color-yellow);
  border-color: var(--color-yellow);
  color: var(--color-black);
  transform: translateY(-3px);
}

/* Bottom Bar */
.footer-bottom-bar {
  background-color: #06090c;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
}

.footer-bottom-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-bottom-flex p {
  color: #7a8b98;
  margin-bottom: 0;
}

.verification-notice-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-yellow);
  background-color: rgba(245, 183, 0, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(245, 183, 0, 0.2);
}

/* 16. LIGHTBOX & MODAL COMPONENT */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.88);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  backdrop-filter: blur(6px);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content-box {
  position: relative;
  max-width: 900px;
  width: 100%;
  background-color: var(--color-black);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 40px;
  height: 40px;
  background-color: rgba(0, 0, 0, 0.6);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background-color: var(--color-yellow);
  color: var(--color-black);
  border-color: var(--color-yellow);
}

.modal-media-wrap {
  width: 100%;
  background-color: #0b1016;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-media-wrap img, .modal-media-wrap svg {
  max-height: 65vh;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.modal-video-iframe-container {
  width: 100%;
  aspect-ratio: 16/9;
  background-color: #000;
}

.modal-video-iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.modal-caption-area {
  padding: 20px 26px;
  background-color: var(--color-black-dark);
  border-top: 1px solid var(--color-border-dark);
}

.modal-caption-area h4 {
  color: var(--color-white);
  margin-bottom: 4px;
}

.modal-caption-area p {
  color: var(--color-metallic);
  font-size: 0.92rem;
}

/* 17. RESPONSIVE BREAKPOINTS (320px, 375px, 430px, 768px, 1024px, 1366px, 1920px) */

/* Up to 1024px (Tablets & Medium Laptops) */
@media (max-width: 1024px) {
  .nav-menu-desktop {
    display: none; /* Switch to Mobile Menu */
  }
  
  .mobile-nav-toggle {
    display: inline-flex;
  }
  
  .header-right-action .header-phone-quick {
    display: none;
  }
  
  .contact-layout-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid-4 {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

/* Up to 768px (Tablets & Large Phones) */
@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }
  
  .top-info-bar {
    display: none; /* Hide top bar on mobile to preserve vertical viewport */
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  
  .hero-industrial {
    padding: 60px 0 80px 0;
  }
  
  .welcome-grid {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  
  .machinery-grid {
    grid-template-columns: 1fr;
  }
  
  .form-grid-2 {
    grid-template-columns: 1fr;
  }
  
  .hero-stats-row {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .floating-whatsapp-btn {
    bottom: 20px;
    left: 20px;
    width: 52px;
    height: 52px;
  }
  
  .floating-whatsapp-btn svg {
    width: 28px;
    height: 28px;
  }
  
  .whatsapp-tooltip {
    display: none; /* Cleaner on touch screens */
  }
}

/* Small Screens (430px, 375px, 320px) */
@media (max-width: 480px) {
  .container, .container-wide {
    padding-left: 16px;
    padding-right: 16px;
  }
  
  .section {
    padding: 50px 0;
  }
  
  .btn {
    width: 100%;
  }
  
  .machine-card-actions {
    grid-template-columns: 1fr;
  }
  
  .footer-grid-4 {
    grid-template-columns: 1fr;
  }
  
  .inquiry-form-card, .contact-info-panel {
    padding: 24px 18px;
  }
  
  .cta-flex {
    flex-direction: column;
    text-align: center;
  }
}