/* ==========================================================================
   SUN FERRO INDUSTRIES - Premium Industrial Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@500;600&display=swap');

:root {
  /* Color Palette */
  --color-primary: #d97706;
  --color-primary-hover: #b45309;
  --color-primary-light: #fef3c7;
  --color-accent-sun: #f59e0b;
  --color-accent-glow: rgba(245, 158, 11, 0.25);
  --color-secondary-blue: #0284c7;
  
  --dark-950: #070d18;
  --dark-900: #0b1325;
  --dark-850: #101b33;
  --dark-800: #182544;
  --dark-700: #233358;
  
  --steel-900: #0f172a;
  --steel-800: #1e293b;
  --steel-700: #334155;
  --steel-600: #475569;
  --steel-500: #64748b;
  --steel-400: #94a3b8;
  --steel-300: #cbd5e1;
  --steel-200: #e2e8f0;
  --steel-100: #f1f5f9;
  --steel-50: #f8fafc;
  --white: #ffffff;
  
  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Transitions & Shadows */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 15px 35px -5px rgba(0, 0, 0, 0.1), 0 8px 12px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(11, 19, 37, 0.2);
  --shadow-gold: 0 10px 25px -5px rgba(245, 158, 11, 0.35);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --header-height: 96px;
  --topbar-height: 40px;
}

/* Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--steel-700);
  background-color: #fbfcfd;
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

button, input, select, textarea {
  font-family: inherit;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

.section-padding-sm {
  padding: 60px 0;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--steel-200);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
  border-bottom-color: transparent;
}

/* Topbar */
.topbar {
  background: var(--dark-950);
  color: var(--steel-400);
  font-size: 0.775rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  width: 100%;
}

.topbar .container {
  max-width: 100%;
  padding: 0 32px;
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: var(--topbar-height);
  width: 100%;
  flex-wrap: nowrap;
  gap: 16px;
}

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: nowrap;
}

.topbar-left {
  flex-shrink: 1;
}

.topbar-right {
  flex-shrink: 0;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  flex-shrink: 0;
  font-size: 0.775rem;
}

.topbar-item svg {
  color: var(--color-accent-sun);
  flex-shrink: 0;
}

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

.topbar-tagline {
  color: var(--color-accent-sun);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  flex-shrink: 0;
  font-size: 0.775rem;
}

@media (max-width: 1320px) {
  .topbar-item-optional {
    display: none !important;
  }
}

@media (max-width: 1100px) {
  .topbar-aim {
    display: none !important;
  }
}

.pulse-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-accent-sun);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
  animation: pulseAnimation 2s infinite;
}

@keyframes pulseAnimation {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(245, 158, 11, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}


/* Main Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo img {
  height: 78px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--steel-800);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2.5px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-sun));
  border-radius: 2px;
  transition: width var(--transition-fast);
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-sun) 0%, var(--color-primary) 100%);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #fbbf24 0%, var(--color-primary-hover) 100%);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
  color: var(--white);
}

.btn-secondary {
  background: var(--white);
  color: var(--steel-800);
  border-color: var(--steel-300);
}

.btn-secondary:hover {
  background: var(--steel-50);
  border-color: var(--steel-400);
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--dark-900);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-dark:hover {
  background: var(--dark-800);
  border-color: var(--color-accent-sun);
  transform: translateY(-2px);
}

.btn-outline-gold {
  background: transparent;
  color: var(--color-accent-sun);
  border-color: var(--color-accent-sun);
}

.btn-outline-gold:hover {
  background: var(--color-accent-sun);
  color: var(--dark-950);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--steel-800);
  cursor: pointer;
  padding: 8px;
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background: var(--dark-950);
  color: var(--white);
  overflow: hidden;
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.42) contrast(1.1);
  transform: scale(1.02);
  transition: transform 10s ease;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(7, 13, 24, 0.75) 0%, rgba(7, 13, 24, 0.88) 100%),
              radial-gradient(circle at 80% 30%, rgba(245, 158, 11, 0.15) 0%, transparent 60%);
  z-index: 2;
}

.hero-container {
  position: relative;
  z-index: 3;
  padding-top: 60px;
  padding-bottom: 60px;
}

.hero-content {
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fbbf24;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.3rem, 4.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: var(--white);
}

.hero-title .text-gold {
  color: var(--color-accent-sun);
  background: linear-gradient(135deg, #fef08a 0%, #f59e0b 50%, #d97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--steel-300);
  line-height: 1.6;
  margin-bottom: 36px;
  max-width: 720px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

/* Hero Metrics Ribbon */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 36px;
}

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

.metric-val {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--color-accent-sun);
  line-height: 1.2;
}

.metric-lbl {
  font-size: 0.85rem;
  color: var(--steel-400);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

/* Section Header Styles */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

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

.section-subtitle {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 3.2vw, 2.75rem);
  font-weight: 800;
  color: var(--steel-900);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--steel-600);
  line-height: 1.65;
}

/* About & Mission Section */
.about-section {
  background-color: var(--white);
  border-bottom: 1px solid var(--steel-200);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.08fr;
  gap: 50px;
  align-items: start;
}

.about-media-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.about-image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 16px 36px -10px rgba(11, 19, 37, 0.22);
  border: 1px solid var(--steel-200);
  background: var(--steel-100);
}

.about-image-wrapper img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center 60%;
  display: block;
  transition: transform var(--transition-slow);
}

.about-image-wrapper:hover img {
  transform: scale(1.03);
}

.about-image-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(11, 19, 37, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--white);
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  z-index: 2;
}

.about-image-tag svg {
  color: var(--color-accent-sun);
}

/* Core Aim & Promise Card (Moved down below factory photo) */
.about-aim-card {
  background: linear-gradient(145deg, #0f172a 0%, #1e293b 65%, #172554 100%);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  color: var(--white);
  border: 1px solid rgba(245, 158, 11, 0.35);
  box-shadow: 0 10px 26px -6px rgba(15, 23, 42, 0.2);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.about-aim-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-sun);
}

.about-aim-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -6px rgba(15, 23, 42, 0.26);
}

.about-aim-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.about-aim-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-sun);
  flex-shrink: 0;
}

.about-aim-meta {
  display: flex;
  flex-direction: column;
}

.about-aim-badge {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-sun);
  margin-bottom: 2px;
}

.about-aim-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin: 0;
}

.about-aim-quote {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fbbf24;
  margin: 0 0 8px 0;
  line-height: 1.45;
}

.about-aim-text {
  font-size: 0.86rem;
  color: var(--steel-300);
  line-height: 1.55;
  margin: 0;
}

.about-content .section-title {
  margin-bottom: 20px;
}

.about-lead {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--steel-800);
  line-height: 1.7;
  margin-bottom: 20px;
}

.about-text {
  font-size: 0.98rem;
  color: var(--steel-600);
  line-height: 1.7;
  margin-bottom: 30px;
}

/* Mission Spotlight Box */
.mission-box {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(217, 119, 6, 0.03) 100%);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 24px 28px;
  margin-bottom: 32px;
}

.mission-box-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.mission-quote {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--steel-900);
  line-height: 1.5;
  font-style: italic;
}

/* Core Values Pillars */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.value-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--steel-100);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.value-title {
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--steel-900);
  margin-bottom: 3px;
}

.value-desc {
  font-size: 0.85rem;
  color: var(--steel-500);
}

/* Products Section */
.products-section {
  background: var(--steel-50);
}

/* Category Filter Tabs */
.product-filters {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 24px;
  background: var(--white);
  color: var(--steel-600);
  border: 1px solid var(--steel-300);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

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

.filter-btn.active {
  background: var(--dark-900);
  color: var(--white);
  border-color: var(--dark-900);
  box-shadow: 0 4px 12px rgba(11, 19, 37, 0.2);
}

.filter-btn.active .filter-count {
  background: var(--color-accent-sun);
  color: var(--dark-950);
}

.filter-count {
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--steel-200);
  color: var(--steel-700);
  padding: 2px 7px;
  border-radius: 10px;
  transition: all var(--transition-fast);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 32px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--steel-200);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(245, 158, 11, 0.4);
}

.product-card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 5;
  background: rgba(11, 19, 37, 0.85);
  backdrop-filter: blur(8px);
  color: var(--color-accent-sun);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.product-image-container {
  position: relative;
  width: 100%;
  height: 270px;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--steel-100);
  padding: 16px;
}

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

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

/* Gallery Thumbnails inside card */
.product-thumbs {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: flex;
  gap: 6px;
  z-index: 4;
}

.thumb-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--white);
  overflow: hidden;
  cursor: pointer;
  padding: 0;
  background: var(--white);
  box-shadow: 0 2px 5px rgba(0,0,0,0.15);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.thumb-btn.active {
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.product-category-tag {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.product-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--steel-900);
  line-height: 1.35;
  margin-bottom: 12px;
}

.product-desc {
  font-size: 0.9rem;
  color: var(--steel-600);
  line-height: 1.6;
  margin-bottom: 20px;
}

.product-features-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--steel-800);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.product-features {
  list-style: none;
  margin-bottom: 24px;
  flex-grow: 1;
}

.product-features li {
  font-size: 0.875rem;
  color: var(--steel-700);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 8px;
  line-height: 1.45;
}

.product-features li svg {
  color: #10b981;
  flex-shrink: 0;
  margin-top: 3px;
}

.product-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: auto;
  border-top: 1px solid var(--steel-100);
  padding-top: 18px;
}

/* Industries Served Section */
.industries-section {
  background: var(--dark-950);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.industries-section .section-title {
  color: var(--white);
}

.industries-section .section-desc {
  color: var(--steel-400);
}

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

.industry-card {
  background: var(--dark-900);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.industry-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-sun);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
}

.industry-image-wrapper {
  position: relative;
  height: 220px;
  overflow: hidden;
}

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

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

.industry-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, transparent 50%, rgba(11, 19, 37, 0.9) 100%);
}

.industry-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.industry-icon-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-accent-sun);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.industry-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 12px;
}

.industry-desc {
  font-size: 0.92rem;
  color: var(--steel-400);
  line-height: 1.6;
  margin-bottom: 20px;
}

.industry-hardware-list {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
  margin-top: auto;
}

.industry-hardware-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--steel-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.hardware-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.hardware-tag {
  font-size: 0.78rem;
  background: rgba(255, 255, 255, 0.06);
  color: var(--steel-300);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Why Sun Ferro / Quality Pillars */
.quality-section {
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  background: var(--steel-50);
  border: 1px solid var(--steel-200);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  background: var(--white);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.feature-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--steel-200);
  transition: all var(--transition-fast);
}

.feature-card:hover .feature-icon-wrapper {
  background: var(--color-primary);
  color: var(--white);
  border-color: var(--color-primary);
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--steel-900);
  margin-bottom: 10px;
  line-height: 1.3;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--steel-600);
  line-height: 1.6;
}

/* Contact & RFQ Section */
.contact-section {
  background: linear-gradient(180deg, #f8fafc 0%, #edf2f7 100%);
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 50px;
  align-items: start;
}

.contact-info-panel {
  background: var(--dark-900);
  color: var(--white);
  padding: 40px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.contact-info-panel::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, var(--color-accent-sun) 0%, transparent 70%);
  opacity: 0.15;
}

.contact-info-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--white);
}

.contact-info-desc {
  font-size: 0.95rem;
  color: var(--steel-300);
  line-height: 1.6;
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 36px;
}

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

.contact-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-sun);
  flex-shrink: 0;
}

.contact-detail-lbl {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--steel-400);
  margin-bottom: 2px;
}

.contact-detail-val {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

.contact-guarantee-badge {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.contact-guarantee-badge svg {
  color: var(--color-accent-sun);
  flex-shrink: 0;
}

.contact-guarantee-title {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 700;
  color: #fbbf24;
}

.contact-guarantee-desc {
  font-size: 0.8rem;
  color: var(--steel-300);
}

/* RFQ Form Card */
.rfq-form-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 44px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--steel-200);
}

.rfq-header {
  margin-bottom: 28px;
}

.rfq-form-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--steel-900);
  margin-bottom: 6px;
}

.rfq-form-desc {
  font-size: 0.92rem;
  color: var(--steel-500);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--steel-800);
}

.form-label .required {
  color: #ef4444;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--steel-300);
  background-color: #fafbfc;
  color: var(--steel-800);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
}

/* FAQ Accordion Section */
.faq-section {
  background: var(--white);
  border-top: 1px solid var(--steel-200);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--steel-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--color-primary);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: var(--steel-50);
  padding: 20px 24px;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--steel-900);
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition-fast);
}

.faq-item.active .faq-question {
  background: #fefce8;
  color: var(--color-primary-hover);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--steel-600);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  background: var(--white);
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 20px 24px;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--steel-600);
  line-height: 1.65;
}

/* Footer */
.site-footer {
  background: var(--dark-950);
  color: var(--steel-400);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  padding: 80px 0 50px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr 1.6fr;
  gap: 40px;
}

.footer-brand img {
  height: 92px;
  width: auto;
  object-fit: contain;
  margin-bottom: 22px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--steel-400);
  margin-bottom: 24px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

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

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--steel-400);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

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

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.footer-contact-item svg {
  color: var(--color-accent-sun);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0;
  font-size: 0.85rem;
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* Floating Action / WhatsApp Button */
.floating-whatsapp {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  z-index: 990;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.5);
}

/* Modal Popup (for Product Spec view & Confirmation) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 13, 24, 0.8);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

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

.modal-container {
  background: var(--white);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px);
  transition: transform var(--transition-fast);
}

.modal-overlay.active .modal-container {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--steel-200);
  background: var(--white);
  color: var(--steel-700);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--steel-100);
  color: var(--steel-900);
}

.modal-content {
  padding: 36px;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .about-image-wrapper img {
    height: auto;
    aspect-ratio: 16 / 10;
  }
  
  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .topbar {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .brand-logo img {
    height: 68px;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--steel-200);
    box-shadow: var(--shadow-xl);
    transform: translateY(-120%);
    transition: transform var(--transition-normal);
  }
  
  .nav-menu.open {
    transform: translateY(0);
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .industries-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .rfq-form-card {
    padding: 24px;
  }
  
  .contact-info-panel {
    padding: 28px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}