/* ==========================================================================
   Supertherm Corporations - Modern Industrial Theme
   Designed for High-Performance Induction Machinery
   ========================================================================== */

:root {
  --primary: #0f172a;        /* Deep midnight slate */
  --primary-light: #1e293b;  /* Medium slate */
  --accent: #f97316;         /* Molten orange */
  --accent-hover: #ea580c;   /* Dark orange */
  --accent-glow: rgba(249, 115, 22, 0.35);
  --cyan-accent: #0284c7;    /* Electric industrial cyan */
  --text-main: #1e293b;
  --text-muted: #64748b;
  --bg-light: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --success: #10b981;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 28px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 25px var(--accent-glow);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.25s ease-in-out;
}

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

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

/* Typography */
h1, h2, h3, h4, h5 {
  color: var(--primary);
  font-weight: 700;
  line-height: 1.25;
}

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

ul {
  list-style: none;
}

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.topbar {
  background-color: #0b1120;
  color: #94a3b8;
  font-size: 0.825rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.topbar-info {
  display: flex;
  gap: 20px;
  align-items: center;
}

.topbar-info span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.badge-247 {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.navbar {
  background-color: #ffffff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border-color);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 76px;
}

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

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent) 0%, #c2410c 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.logo-text h2 {
  font-size: 1.25rem;
  letter-spacing: -0.5px;
  color: var(--primary);
  margin-bottom: 0;
  text-transform: uppercase;
}

.logo-text span {
  color: var(--accent);
}

.logo-text p {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-weight: 600;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--primary);
  position: relative;
  padding: 6px 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.2s ease;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: white;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-outline {
  border: 2px solid #cbd5e1;
  background: transparent;
  color: var(--primary);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(249, 115, 22, 0.05);
}

.btn-outline-white {
  border: 2px solid rgba(255, 255, 255, 0.4);
  background: transparent;
  color: white;
}

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

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

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  background: radial-gradient(circle at 80% 20%, #1e293b 0%, #0b1120 100%);
  color: white;
  padding: 80px 0 100px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(249, 115, 22, 0.15);
  border: 1px solid rgba(249, 115, 22, 0.35);
  padding: 6px 14px;
  border-radius: 30px;
  color: #fb923c;
  font-size: 0.825rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 3rem;
  color: white;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero h1 span {
  background: linear-gradient(135deg, #fb923c 0%, #ea580c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  color: #cbd5e1;
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

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

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-item h3 {
  font-size: 1.75rem;
  color: #fb923c;
  margin-bottom: 2px;
}

.stat-item p {
  font-size: 0.8rem;
  color: #94a3b8;
  margin-bottom: 0;
  line-height: 1.3;
}

/* Hero Visual Box */
.hero-visual-card {
  position: relative;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(10px);
}

.hero-img-wrapper {
  position: relative;
  width: 100%;
  height: 380px;
  background: #0b1120;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.hero-visual-card:hover .hero-img-wrapper img {
  transform: scale(1.03);
}

.hero-card-floating-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(249, 115, 22, 0.4);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.floating-badge-text h4 {
  color: white;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.floating-badge-text p {
  color: #94a3b8;
  font-size: 0.75rem;
  margin: 0;
}

.floating-badge-metric {
  text-align: right;
}

.floating-badge-metric span {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: #34d399;
}

.floating-badge-metric label {
  font-size: 0.7rem;
  color: #94a3b8;
}

/* ==========================================================================
   Section Headers & Common
   ========================================================================== */
section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-subtitle {
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 1.5px;
  display: inline-block;
  margin-bottom: 10px;
}

.section-header h2 {
  font-size: 2.35rem;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ==========================================================================
   Products Section (Interactive Tabs)
   ========================================================================== */
.products-section {
  background-color: #ffffff;
}

.product-tabs-nav {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.tab-btn {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  padding: 12px 22px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tab-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tab-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.2);
}

.tab-btn.active i {
  color: var(--accent);
}

.product-pane {
  display: none;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.product-pane.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
}

.product-info h3 {
  font-size: 1.85rem;
  margin-bottom: 12px;
}

.product-badge {
  display: inline-block;
  background: rgba(2, 132, 199, 0.1);
  color: var(--cyan-accent);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.product-info p {
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}

.specs-table-wrapper {
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  margin-bottom: 24px;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.specs-table th {
  background: #f1f5f9;
  text-align: left;
  padding: 10px 16px;
  font-weight: 600;
  color: var(--primary);
  border-bottom: 1px solid var(--border-color);
}

.specs-table td {
  padding: 10px 16px;
  border-bottom: 1px solid #f1f5f9;
  color: var(--text-main);
}

.specs-table tr:last-child td {
  border-bottom: none;
}

.product-highlights {
  list-style: none;
  margin-bottom: 28px;
}

.product-highlights li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  font-size: 0.925rem;
  color: var(--text-main);
}

.product-highlights li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: bold;
}

.product-image-box {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  background: white;
}

.product-image-box img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

.product-image-caption {
  padding: 16px;
  background: white;
  border-top: 1px solid var(--border-color);
}

.product-image-caption h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.product-image-caption p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* ==========================================================================
   Cost & Technical Comparison (Induction vs Fuel-Fired)
   ========================================================================== */
.comparison-section {
  background-color: #0b1120;
  color: white;
}

.comparison-section .section-header h2 {
  color: white;
}

.comparison-section .section-header p {
  color: #94a3b8;
}

.comparison-table-wrapper {
  background: #1e293b;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 50px;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-table th, .comparison-table td {
  padding: 18px 24px;
  text-align: left;
}

.comparison-table th {
  background: rgba(15, 23, 42, 0.9);
  color: #cbd5e1;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-table th.highlight-col {
  background: rgba(249, 115, 22, 0.15);
  color: #fb923c;
  border-bottom: 2px solid var(--accent);
}

.comparison-table td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.95rem;
}

.comparison-table td.highlight-col {
  background: rgba(249, 115, 22, 0.05);
  font-weight: 600;
  color: #ffffff;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.pill-good {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.85rem;
  display: inline-block;
  font-weight: 600;
}

.pill-bad {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.85rem;
  display: inline-block;
}

/* Interactive Calculator */
.calc-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid rgba(249, 115, 22, 0.3);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-glow);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}

.calc-inputs h3 {
  color: white;
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.calc-inputs p {
  color: #94a3b8;
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.calc-field {
  margin-bottom: 20px;
}

.calc-field label {
  display: flex;
  justify-content: space-between;
  color: #cbd5e1;
  font-size: 0.875rem;
  margin-bottom: 8px;
}

.calc-field input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

.calc-results {
  background: rgba(11, 17, 32, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.calc-metric-box {
  background: rgba(30, 41, 59, 0.6);
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.calc-metric-box p {
  font-size: 0.75rem;
  color: #94a3b8;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.calc-metric-box h4 {
  font-size: 1.5rem;
  color: #34d399;
}

.calc-metric-box.highlight {
  border-color: rgba(249, 115, 22, 0.4);
}

.calc-metric-box.highlight h4 {
  color: #fb923c;
}

/* ==========================================================================
   Engineering Features & Advantages
   ========================================================================== */
.features-section {
  background-color: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(249, 115, 22, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.925rem;
  line-height: 1.6;
}

/* ==========================================================================
   Nationwide Network & Manufacturing Facility
   ========================================================================== */
.network-section {
  background-color: #ffffff;
}

.network-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}

.hq-card {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
}

.hq-badge {
  background: var(--primary);
  color: white;
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.hq-card h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.hq-card p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.branch-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.branch-box {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.branch-box h4 {
  font-size: 1.05rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.branch-box p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.branch-box a {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
}

.service-cities-tagcloud {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
}

.service-cities-tagcloud h4 {
  font-size: 1rem;
  margin-bottom: 14px;
}

.city-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.city-tag {
  background: white;
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--primary);
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonials-section {
  background-color: var(--bg-light);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-quote {
  font-style: italic;
  color: var(--text-main);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

.testimonial-quote::before {
  content: '“';
  font-size: 2.5rem;
  color: var(--accent);
  line-height: 0;
  display: block;
  margin-bottom: 12px;
}

.testimonial-author {
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.author-info h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* ==========================================================================
   Contact / Quote Section
   ========================================================================== */
.contact-section {
  background: #ffffff;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.contact-info-panel h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.contact-info-panel p {
  color: var(--text-muted);
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.contact-icon {
  width: 44px;
  height: 44px;
  background: rgba(249, 115, 22, 0.1);
  color: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-item-text h4 {
  font-size: 1rem;
  margin-bottom: 2px;
}

.contact-item-text p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.9rem;
}

.quote-form-card {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.quote-form-card h3 {
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.quote-form-card p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 24px;
}

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

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: white;
  font-size: 0.9rem;
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: #0b1120;
  color: #94a3b8;
  padding: 80px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 16px;
  margin-bottom: 24px;
  color: #94a3b8;
}

.footer-col h4 {
  color: white;
  font-size: 1rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--accent);
}

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

.footer-links a {
  font-size: 0.875rem;
  color: #94a3b8;
}

.footer-links a:hover {
  color: white;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.825rem;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid, .product-grid, .calc-grid, .network-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .features-grid, .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero h1 {
    font-size: 2.35rem;
  }
  .hero-stats-row {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 24px;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--border-color);
  }
  .nav-menu.show {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .form-row, .branch-cards-grid, .calc-results {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .topbar-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

/* ==========================================================================
   Real Machine & Works Gallery
   ========================================================================== */
.gallery-section {
  background-color: #0b1120;
  color: white;
  padding: 80px 0;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 36px;
}
@media (max-width: 992px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 576px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}
.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 240px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-sm);
  background: #1e293b;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery-item:hover img {
  transform: scale(1.08);
}
.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.95), transparent);
  padding: 20px 14px 10px;
  color: white;
  font-size: 0.85rem;
  font-weight: 600;
}