/* Modern Vibrant Industrial CSS System for RVM Tubes and Metals */

:root {
  --color-primary: #0a1128;
  --color-primary-light: #1c2541;
  --color-secondary: #0284c7;
  --color-accent: #ff6b00;
  --color-accent-hover: #e05e00;
  --color-accent-gold: #ffb703;
  --color-cyan: #00f2fe;
  --color-text-main: #334155;
  --color-text-dark: #0a1128;
  --color-text-muted: #64748b;
  --color-bg-light: #f4f7fc;
  --color-bg-card: #ffffff;
  --color-border: #e2e8f0;
  
  --gradient-steel: linear-gradient(135deg, #0a1128 0%, #1c2541 50%, #0369a1 100%);
  --gradient-orange: linear-gradient(135deg, #ff6b00 0%, #ff9100 50%, #f97316 100%);
  --gradient-blue: linear-gradient(135deg, #0284c7 0%, #00f2fe 100%);
  --gradient-gold: linear-gradient(135deg, #ffb703 0%, #fb8500 100%);
  --gradient-glass: rgba(255, 255, 255, 0.92);

  --shadow-sm: 0 2px 6px rgba(10, 17, 40, 0.06);
  --shadow-md: 0 6px 18px rgba(10, 17, 40, 0.1);
  --shadow-lg: 0 15px 35px rgba(10, 17, 40, 0.15);
  --shadow-glow: 0 0 25px rgba(255, 107, 0, 0.4);
  --shadow-cyan-glow: 0 0 25px rgba(0, 242, 254, 0.35);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--color-text-main);
  background-color: var(--color-bg-light);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

/* --- Top Header & Info Bar --- */
.top-info-bar {
  background: var(--gradient-steel);
  color: #cbd5e1;
  font-size: 0.85rem;
  padding: 10px 0;
  border-bottom: 2px solid rgba(255, 107, 0, 0.3);
}

.top-info-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-trust-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
  font-weight: 600;
}

.top-trust-badge span.iso-tag {
  background: var(--gradient-orange);
  color: #ffffff;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(255, 107, 0, 0.4);
}

.top-contact-details {
  display: flex;
  gap: 22px;
}

.top-contact-details a {
  color: #e2e8f0;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.top-contact-details a i {
  color: var(--color-cyan);
}

.top-contact-details a:hover {
}

/* --- Main Header / Navigation --- */
.main-header {
  background: #eeebe4;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(10, 17, 40, 0.08);
  border-bottom: 3px solid transparent;
  border-image: linear-gradient(90deg, #ff6b00, #00f2fe, #10b981) 1;
  transition: var(--transition);
}

.container {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 98px;
  padding: 4px 0;
  gap: 20px;
}

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  min-width: 260px;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.brand-logo:hover {
  transform: scale(1.04);
}

.brand-title {
  font-size: 1.4rem;
  font-weight: 900;
  color: #0f172a;
  letter-spacing: -0.2px;
  white-space: nowrap;
  font-family: 'Outfit', 'Montserrat', sans-serif;
}

.brand-title .accent {
  color: #ef4444;
}
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.brand-title span.accent {
  background: var(--gradient-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: 30px;
  margin-right: auto;
}

.nav-link {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text-dark);
  padding: 8px 4px;
  position: relative;
  cursor: pointer;
  white-space: nowrap;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--gradient-orange);
  border-radius: var(--radius-full);
  transition: var(--transition);
}

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

/* Submenu dropdown */
.has-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 270px;
  background: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: 0 12px 30px rgba(10, 17, 40, 0.15);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  padding: 12px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition);
}

.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: 10px 22px;
  font-size: 0.92rem;
  color: var(--color-text-main);
  font-weight: 600;
}

.dropdown-menu a:hover {
  background: rgba(255, 107, 0, 0.08);
  color: var(--color-accent);
  padding-left: 26px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-size: 0.92rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

.btn-accent {
  background: var(--gradient-orange);
  color: white;
  box-shadow: 0 4px 15px rgba(255, 107, 0, 0.35);
}

.btn-accent:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-outline {
  border-color: var(--color-accent);
  background: white;
  color: var(--color-accent);
}

.btn-outline:hover {
  background: var(--gradient-orange);
  color: white;
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

/* Header RFQ Cart Badge Styling - High Contrast Specificity */
.btn-outline #cartBadgeCount,
#cartBadgeCount, 
.cart-badge-count {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: #0f172a !important; /* Dark Navy contrast background */
  color: #ffffff !important;       /* Pure White text for 100% visibility */
  font-size: 0.82rem !important;
  font-weight: 800 !important;
  min-width: 22px !important;
  height: 22px !important;
  padding: 0 7px !important;
  border-radius: 12px !important;
  margin-left: 6px !important;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3) !important;
  border: 1.5px solid #ffffff !important;
  vertical-align: middle !important;
  line-height: 1 !important;
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), background 0.2s ease, color 0.2s ease !important;
}

.btn-outline:hover #cartBadgeCount, 
.btn-outline:hover .cart-badge-count {
  background: #ffffff !important;
  color: #0f172a !important;
  border-color: #0f172a !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2) !important;
}

.cart-badge-bounce {
  animation: badgePop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes badgePop {
  0% { transform: scale(1); }
  50% { transform: scale(1.4); }
  100% { transform: scale(1); }
}

.btn-light {
  background: white;
  color: var(--color-primary);
}

.btn-light:hover {
  background: #f1f5f9;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
}

/* --- Hero Section & Auto Slider --- */
.hero-section {
  position: relative;
  width: 100%;
  height: calc(100vh - 120px);
  min-height: 620px;
  overflow: hidden;
  background: #0f172a;
}

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

.hero-slide-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.hero-slide-bg.active {
  opacity: 1.0;
}

.brand-logo-stacked {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
}

.brand-emblem-img {
  height: 58px;
  width: auto;
  object-fit: contain;
  background: transparent;
  mix-blend-mode: normal;
  transition: transform 0.25s ease;
}

.brand-subtext {
  font-family: 'Montserrat', 'Inter', system-ui, sans-serif;
  font-weight: 800;
  font-size: 13.5px;
  color: #b58e73;
  letter-spacing: 3.5px;
  margin-top: 3px;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand-logo:hover .brand-emblem-img {
  transform: scale(1.04);
}

/* Remove dark black screen overlay so material photos are 100% bright & clear */
.hero-bg-overlay {
  display: none !important;
}

.hero-content-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
  display: flex;
  align-items: center;
  pointer-events: none;
}

.hero-text-card {
  max-width: 840px;
  color: #ffffff;
  pointer-events: auto;
  background: transparent;
  padding: 0;
  border: none;
  box-shadow: none;
}

.hero-brand-inline {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.hero-brand-rvm-big {
  font-family: 'Outfit', 'Montserrat', sans-serif;
  font-size: 3.6rem;
  font-weight: 900;
  color: #ff6b00;
  letter-spacing: 1.5px;
  line-height: 1;
  text-shadow: 0 4px 25px rgba(0, 0, 0, 0.95);
}

.hero-brand-metals-small {
  font-family: 'Outfit', 'Inter', sans-serif;
  font-size: 1.7rem;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.5px;
  text-shadow: 0 4px 25px rgba(0, 0, 0, 0.95);
}

.hero-brand-rvm {
  font-family: 'Outfit', 'Montserrat', sans-serif;
  font-size: 2.5rem;
  font-weight: 900;
  color: #ff6b00;
  letter-spacing: 2px;
  line-height: 1;
  text-shadow: 0 2px 10px rgba(255, 107, 0, 0.5);
}

.hero-brand-subtext {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: #f1f5f9;
  letter-spacing: 3.5px;
  text-transform: uppercase;
}

.hero-main-title {
  font-size: 3.8rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 22px;
  font-family: 'Outfit', 'Montserrat', sans-serif;
  letter-spacing: -0.5px;
  text-shadow: 0 4px 25px rgba(0, 0, 0, 0.95), 0 2px 8px rgba(0, 0, 0, 0.95);
}

.text-orange-gradient {
  background: linear-gradient(90deg, #ff6b35 0%, #ffb703 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.9));
  display: inline-block;
}

.text-white-glow {
  color: #ffffff;
  text-shadow: 0 4px 25px rgba(0, 0, 0, 0.95), 0 2px 8px rgba(0, 0, 0, 0.95);
}

.hero-sub-title {
  font-size: 1.45rem;
  font-weight: 600;
  color: #ffffff;
  line-height: 1.65;
  margin-bottom: 34px;
  max-width: 750px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.95), 0 2px 6px rgba(0, 0, 0, 0.95);
}

.text-gold {
  color: #ffb703;
  font-weight: 800;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.9);
}

.highlight-cyan {
  color: #38bdf8;
  font-weight: 700;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.9);
}

.hero-btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
  border-radius: 8px;
}

.btn-outline-light {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: #ffffff;
}

.btn-outline-light:hover {
  background: #ffffff;
  color: #0f172a;
  border-color: #ffffff;
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

/* Slider Controls */
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px;
  height: 48px;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(8px);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.slider-arrow:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

.slider-arrow.prev { left: 24px; }
.slider-arrow.next { right: 24px; }

.slider-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 10px;
  background: rgba(15, 23, 42, 0.6);
  padding: 8px 16px;
  border-radius: 30px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.active {
  background: var(--color-accent);
  width: 28px;
  border-radius: 10px;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: block;
  max-width: 820px;
}

.hero-text {
  background: none;
  backdrop-filter: none;
  padding: 0;
  border-radius: 0;
  border: none;
  box-shadow: none;
}

.hero-text h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
  color: #ffffff;
  text-shadow: 0 3px 14px rgba(0, 0, 0, 0.95), 0 0 25px rgba(0, 0, 0, 0.85);
}

.hero-text h1 span.gradient-text {
  background: linear-gradient(135deg, #ff9800 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 10px rgba(0, 0, 0, 0.9));
}

.hero-text p {
  font-size: 1.3rem;
  color: #ffffff;
  margin-bottom: 30px;
  max-width: 650px;
  line-height: 1.6;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.95), 0 0 20px rgba(0, 0, 0, 0.85);
  font-weight: 600;
}

.hero-badges {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 35px;
}

.badge-tag {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge-tag i {
  color: var(--color-accent);
}

.hero-cta {
  display: flex;
  gap: 16px;
}

/* Quick Inquiry Card inside Hero */
.hero-inquiry-card {
  background: rgba(30, 41, 59, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-lg);
}

.hero-inquiry-card h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
  color: white;
}

.hero-inquiry-card p {
  font-size: 0.88rem;
  color: #94a3b8;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: #cbd5e1;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  color: white;
  font-size: 0.92rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.2);
}

.form-control::placeholder {
  color: #64748b;
}

select.form-control option {
  background: var(--color-primary);
  color: white;
}

/* --- Stat Counter Bar --- */
.stat-counter-bar {
  background: #ffffff;
  margin-top: -50px;
  position: relative;
  z-index: 10;
  border-radius: var(--radius-lg);
  box-shadow: 0 15px 40px rgba(10, 17, 40, 0.12);
  padding: 35px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-top: 5px solid var(--color-accent);
}

.stat-item {
  text-align: center;
  padding: 10px;
  border-right: 1px solid var(--color-border);
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-4px);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  background: var(--gradient-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

/* --- Section Layout --- */
.section {
  padding: 90px 0;
}

.section-bg-alt {
  background: linear-gradient(180deg, #f4f7fc 0%, #eef2f9 100%);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px auto;
}

.section-subtitle {
  color: var(--color-accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.88rem;
  margin-bottom: 10px;
  display: inline-block;
  background: rgba(255, 107, 0, 0.1);
  padding: 4px 14px;
  border-radius: var(--radius-full);
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.section-desc {
  margin-top: 14px;
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* --- Products Showcase Section --- */
.category-filter-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-tab {
  padding: 12px 24px;
  border-radius: var(--radius-full);
  background: #ffffff;
  border: 2px solid var(--color-border);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--color-text-main);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.filter-tab:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.filter-tab.active {
  background: var(--gradient-orange);
  color: #ffffff;
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 32px;
}

.product-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(10, 17, 40, 0.15), 0 0 20px rgba(255, 107, 0, 0.2);
  border-color: var(--color-accent);
}

.product-img-wrapper {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: #f1f5f9;
}

.product-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-img-wrapper img {
  transform: scale(1.08);
}

.product-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 23, 42, 0.85);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

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

.product-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.product-specs-list {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.product-specs-list li {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 1px dashed var(--color-border);
}

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

.product-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: auto;
  margin-bottom: 18px;
}

.grade-tag {
  background: #e0f2fe;
  color: #0369a1;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}

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

.product-actions .btn {
  flex: 1;
  font-size: 0.85rem;
  padding: 10px;
}

/* --- Tech Info & Calculator Section --- */
.tech-calculator-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.calc-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 35px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.calc-header {
  margin-bottom: 24px;
  border-bottom: 2px solid var(--color-bg-light);
  padding-bottom: 16px;
}

.calc-header h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.calc-header h3 i {
  color: var(--color-accent);
}

.calc-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.calc-form-grid .full-width {
  grid-column: span 2;
}

.calc-result-box {
  background: var(--gradient-steel);
  color: white;
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 20px;
  text-align: center;
}

.calc-result-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: #94a3b8;
  letter-spacing: 1px;
}

.calc-result-val {
  font-size: 2.2rem;
  font-weight: 800;
  color: #38bdf8;
  margin: 6px 0;
}

/* Composition Table Card */
.table-responsive {
  overflow-x: auto;
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 0.88rem;
}

.tech-table th {
  background: var(--color-primary);
  color: white;
  text-align: left;
  padding: 12px;
  font-weight: 600;
}

.tech-table td {
  padding: 12px;
  border-bottom: 1px solid var(--color-border);
}

.tech-table tr:nth-child(even) {
  background: #f8fafc;
}

.tech-table tr:hover {
  background: #f1f5f9;
}

/* --- Quality Assurance Section --- */
.quality-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.quality-box {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.quality-box:hover {
  transform: translateY(-4px);
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
}

.quality-icon {
  width: 56px;
  height: 56px;
  background: #e0f2fe;
  color: var(--color-secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.quality-box h4 {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.quality-box p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* --- Instant RFQ Banner --- */
.rfq-banner {
  background: var(--gradient-steel);
  color: white;
  border-radius: var(--radius-lg);
  padding: 55px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(10, 17, 40, 0.25);
  border: 2px solid rgba(255, 107, 0, 0.3);
}

.rfq-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 107, 0, 0.25) 0%, transparent 70%);
  z-index: 1;
}

.rfq-content-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  position: relative;
  z-index: 2;
}

.rfq-text h2 {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #ffffff 0%, #00f2fe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.rfq-text p {
  color: #e2e8f0;
  font-size: 1.1rem;
  max-width: 620px;
}

/* --- Modal Styles --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: white;
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  padding: 35px;
  transform: scale(0.95);
  transition: var(--transition);
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: #f1f5f9;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--color-text-dark);
}

.modal-close:hover {
  background: var(--color-accent);
  color: white;
}

/* --- Footer --- */
.site-footer {
  background: #080e1e;
  color: #cbd5e1;
  padding: 80px 0 35px 0;
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, #ff6b00, #00f2fe, #10b981) 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 35px;
  height: 3px;
  background: var(--gradient-orange);
  border-radius: 2px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #cbd5e1;
  font-size: 0.92rem;
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  color: #94a3b8;
}

/* --- Mobile Drawer Navigation Overlay --- */
.mobile-toggle {
  display: none;
  background: #0f172a;
  color: #ffffff;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  font-size: 1.3rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.mobile-toggle:hover {
  background: var(--color-accent);
}

.mobile-drawer-overlay {
  position: fixed;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(6px);
  z-index: 3000;
  transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-drawer-overlay.active {
  left: 0;
}

.mobile-drawer-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 82%;
  max-width: 320px;
  height: 100%;
  background: #ffffff;
  padding: 24px;
  box-shadow: 8px 0 30px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.mobile-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 2px solid #e2e8f0;
  margin-bottom: 20px;
}

.mobile-drawer-close {
  background: #f1f5f9;
  border: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-size: 1.2rem;
  color: #0f172a;
  cursor: pointer;
}

.mobile-drawer-close:hover {
  background: var(--color-accent);
  color: #ffffff;
}

.mobile-drawer-links {
  list-style: none;
  padding: 0;
  margin: 0 0 25px 0;
}

.mobile-drawer-links li {
  margin-bottom: 12px;
}

.mobile-drawer-links a {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #0f172a;
  padding: 10px 14px;
  border-radius: 8px;
  transition: var(--transition);
}

.mobile-drawer-links a i {
  color: var(--color-accent);
  width: 22px;
}

.mobile-drawer-links a:hover {
  background: #f1f5f9;
  color: var(--color-accent);
}

/* --- Responsive Media Queries --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

/* --- Complete Mobile & Universal Tablet Responsiveness --- */
@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr !important;
    gap: 25px !important;
  }
  .container {
    padding: 0 16px;
  }
  .nav-menu {
    display: none !important;
  }
  .desktop-only-btn {
    display: none !important;
  }
  .mobile-toggle {
    display: flex !important;
  }
  .hero-content {
    grid-template-columns: 1fr;
  }
  .stat-counter-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 15px 0;
  }
  .tech-calculator-wrapper {
    grid-template-columns: 1fr;
  }
  .quality-features-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .rfq-banner {
    padding: 30px 20px;
  }
  .rfq-content-flex {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .top-info-bar {
    padding: 6px 0;
  }
  .top-info-bar .container {
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }
  .top-trust-badge {
    justify-content: center;
    font-size: 0.76rem;
    flex-wrap: wrap;
  }
  .top-contact-details {
    justify-content: center;
    gap: 10px;
    font-size: 0.76rem;
    flex-wrap: wrap;
  }

  .nav-wrapper {
    min-height: 64px;
    padding: 6px 0;
    gap: 10px;
  }
  .brand-logo {
    min-width: auto;
  }
  .brand-logo img {
    height: 48px !important;
    max-width: 200px !important;
  }
  .header-actions {
    gap: 8px;
  }
  .header-actions .btn {
    padding: 8px 12px;
    font-size: 0.85rem;
  }

  .hero-section {
    min-height: 460px;
    height: auto;
  }
  .hero-content-container {
    padding: 35px 0;
  }
  .hero-main-title {
    font-size: 2.1rem !important;
    line-height: 1.25 !important;
    margin-bottom: 14px !important;
  }
  .hero-sub-title {
    font-size: 1rem !important;
    line-height: 1.5 !important;
    margin-bottom: 20px !important;
  }
  .hero-btn-group {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }
  .hero-btn-group .btn {
    width: 100%;
    justify-content: center;
  }

  .stat-counter-bar {
    grid-template-columns: 1fr 1fr !important;
    gap: 14px !important;
    padding: 16px 12px !important;
  }
  .stat-number {
    font-size: 1.8rem !important;
  }
  .stat-label {
    font-size: 0.78rem !important;
  }

  .products-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .product-actions {
    display: flex !important;
    gap: 8px !important;
    width: 100% !important;
  }
  .product-actions .btn {
    flex: 1 !important;
    padding: 10px 8px !important;
    font-size: 0.82rem !important;
    justify-content: center !important;
    white-space: nowrap !important;
  }

  .category-filter-tabs {
    overflow-x: auto;
    white-space: nowrap;
    justify-content: flex-start;
    padding-bottom: 10px;
    -webkit-overflow-scrolling: touch;
  }
  .filter-tab {
    flex-shrink: 0;
    padding: 8px 14px;
    font-size: 0.84rem;
  }

  .calc-form-grid {
    grid-template-columns: 1fr !important;
  }
  .calc-results-panel {
    margin-top: 15px;
    padding: 18px 14px;
  }
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .tech-table th, .tech-table td {
    padding: 8px 10px;
    font-size: 0.82rem;
  }

  .modal-container {
    width: 95% !important;
    max-width: 520px !important;
    padding: 24px 16px !important;
    border-radius: 16px !important;
    margin: 10px !important;
  }

  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }
  .top-trust-badge span.iso-tag {
    font-size: 0.72rem;
    padding: 2px 6px;
  }
  .top-contact-details a {
    font-size: 0.75rem;
  }
  .brand-logo img {
    height: 40px !important;
    max-width: 165px !important;
  }
  .header-actions .btn {
    padding: 6px 10px;
    font-size: 0.8rem;
  }
  .hide-mobile-text {
    display: none !important;
  }
  .hero-main-title {
    font-size: 1.65rem !important;
  }
  .hero-sub-title {
    font-size: 0.9rem !important;
  }
  .rfq-text h2 {
    font-size: 1.6rem;
  }
  .rfq-text p {
    font-size: 0.95rem;
  }
  .whatsapp-float {
    bottom: 18px;
    right: 18px;
    width: 52px;
    height: 52px;
    font-size: 1.5rem;
  }
}

@media (max-width: 360px) {
  .brand-logo img {
    height: 34px !important;
    max-width: 140px !important;
  }
  .header-actions {
    gap: 4px;
  }
  .header-actions .btn {
    padding: 5px 8px;
    font-size: 0.75rem;
  }
  .hero-main-title {
    font-size: 1.45rem !important;
  }
}

/* Floating WhatsApp Button with Pulsing Glow */
.whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
  z-index: 1500;
  transition: var(--transition);
  animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.12);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.65);
}

@keyframes pulse-whatsapp {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 16px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}