/* ==========================================================================
   MANUFACTURING INFRASTRUCTURE & DUAL PLANTS - EXTRAORDINARY BANGER UI
   Bhushan Rubber Industries - World-Class Plant Facilities & Machinery
   ========================================================================== */

:root {
  --infra-primary: #0066cc;
  --infra-primary-hover: #0052a3;
  --infra-teal: #00b4d8;
  --infra-cyan: #38bdf8;
  --infra-emerald: #10b981;
  --infra-navy: #0a192f;
  --infra-dark-card: #0d1e32;
  --infra-dark-bg: #07111d;
  --infra-surface: #f8fafc;
  --infra-border: #e2e8f0;
  --infra-border-focus: #00b4d8;
  --infra-text-dark: #0f172a;
  --infra-text-muted: #64748b;
  --infra-radius: 14px;
  --infra-radius-lg: 20px;
  --infra-shadow-sm: 0 2px 10px rgba(10, 25, 47, 0.05);
  --infra-shadow-md: 0 8px 30px rgba(10, 25, 47, 0.08);
  --infra-shadow-lg: 0 20px 50px rgba(0, 102, 204, 0.14);
}

/* Base Sections */
.infra-section {
  padding: 85px 0;
  position: relative;
}

.infra-section-alt {
  padding: 85px 0;
  background: var(--infra-surface);
  position: relative;
}

.infra-pill-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--infra-primary);
  margin-bottom: 12px;
}

.infra-pill-label::after {
  content: "";
  display: inline-block;
  width: 40px;
  height: 2px;
  background: var(--infra-primary);
  border-radius: 2px;
}

.infra-section-heading {
  font-size: 38px;
  font-weight: 800;
  color: var(--infra-navy);
  line-height: 1.25;
  margin: 0 0 16px;
  letter-spacing: -0.5px;
}

.infra-section-subtext {
  font-size: 16px;
  color: var(--infra-text-muted);
  line-height: 1.65;
  max-width: 760px;
  margin: 0 auto 50px;
  text-align: center;
}

.text-gradient-teal {
  background: linear-gradient(90deg, #38bdf8 0%, #00b4d8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* ==========================================================================
   1. HERO SECTION (DARK INDUSTRIAL COMMAND CENTER & PLANT METRICS)
   ========================================================================== */
.infra-hero-ui {
  padding: 60px 0 75px;
  background: linear-gradient(135deg, #07111d 0%, #0b1c2d 60%, #081320 100%);
  color: #ffffff;
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--infra-teal);
}

.infra-hero-ui::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.16) 0%, transparent 70%);
  pointer-events: none;
}

.infra-hero-ui::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 180, 216, 0.4), transparent);
}

.infra-hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 50px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.infra-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 180, 216, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: #38bdf8;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 22px;
  width: fit-content;
  box-shadow: 0 0 20px rgba(0, 180, 216, 0.15);
}

.pulse-beacon-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #38bdf8;
  box-shadow: 0 0 10px #38bdf8;
  position: relative;
  display: inline-block;
  animation: pulse-beacon 2s infinite;
}

.infra-hero-title {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.15;
  color: #ffffff;
  margin: 0 0 20px;
  letter-spacing: -0.5px;
}

.infra-hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: #cbd5e1;
  margin: 0 0 28px;
  max-width: 640px;
}

.infra-hero-pills {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.infra-hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: #e2e8f0;
  backdrop-filter: blur(6px);
  transition: all 0.25s ease;
}

.infra-hero-pill:hover {
  background: rgba(0, 180, 216, 0.15);
  border-color: rgba(0, 180, 216, 0.4);
  color: #ffffff;
  transform: translateY(-2px);
}

.infra-hero-pill svg {
  color: var(--infra-cyan);
}

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

.btn-infra-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 32px;
  background: var(--infra-teal);
  color: #07111d;
  font-size: 15.5px;
  font-weight: 700;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(0, 180, 216, 0.35);
  transition: all 0.25s ease;
}

.btn-infra-primary:hover {
  background: #38bdf8;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 180, 216, 0.5);
  color: #07111d;
}

.btn-infra-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  font-size: 15.5px;
  font-weight: 700;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.25s ease;
}

.btn-infra-secondary:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: #ffffff;
  transform: translateY(-2px);
  color: #ffffff;
}

/* Hero Right: Plant Intel Command Box */
.infra-intel-card {
  background: rgba(13, 30, 50, 0.85);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(0, 180, 216, 0.3);
  border-radius: var(--infra-radius-lg);
  padding: 30px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  position: relative;
}

.infra-intel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--infra-cyan), transparent);
}

.intel-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.intel-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 180, 216, 0.15);
  color: var(--infra-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.intel-card-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
}

.intel-card-header span {
  font-size: 13px;
  color: #94a3b8;
  display: block;
}

.intel-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.intel-stat-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 14px;
  text-align: center;
}

.intel-stat-val {
  font-size: 24px;
  font-weight: 900;
  color: var(--infra-cyan);
  display: block;
  line-height: 1.1;
  margin-bottom: 4px;
}

.intel-stat-lbl {
  font-size: 11.5px;
  color: #cbd5e1;
  line-height: 1.35;
}

/* ==========================================================================
   2. RECREATED BROCHURE FEATURE (PAGE 4: MANUFACTURING EXPERTISE)
   ========================================================================== */
.brochure-feature-section {
  padding: 85px 0;
  background: #ffffff;
}

.brochure-feature-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 50px;
  align-items: center;
}

.brochure-feature-copy {
  display: flex;
  flex-direction: column;
}

.brochure-feature-desc {
  font-size: 16px;
  color: var(--infra-text-muted);
  line-height: 1.7;
  margin: 0 0 32px;
}

.four-pillars-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.pillar-item {
  background: #f8fafc;
  border: 1px solid var(--infra-border);
  border-radius: var(--infra-radius);
  padding: 20px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: all 0.25s ease;
}

.pillar-item:hover {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: var(--infra-shadow-sm);
  transform: translateY(-2px);
}

.pillar-icon-box {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: #e0f2fe;
  color: #0284c7;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pillar-text strong {
  font-size: 15px;
  font-weight: 800;
  color: var(--infra-navy);
  display: block;
  margin-bottom: 4px;
}

.pillar-text p {
  font-size: 13px;
  color: var(--infra-text-muted);
  line-height: 1.5;
  margin: 0;
}

/* Image Showcase Card with Floating Badges */
.brochure-feature-media {
  position: relative;
}

.feature-img-wrapper {
  position: relative;
  border-radius: var(--infra-radius-lg);
  overflow: hidden;
  box-shadow: var(--infra-shadow-lg);
  background: #ffffff;
  border: 1px solid var(--infra-border);
}

.feature-img-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.floating-infra-badge {
  position: absolute;
  background: rgba(10, 25, 47, 0.94);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 180, 216, 0.35);
  border-radius: 12px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  z-index: 5;
  color: #ffffff;
  animation: float-slow 4s ease-in-out infinite alternate;
}

@keyframes float-slow {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.badge-top-left {
  top: -16px;
  left: -16px;
}

.badge-bottom-right {
  bottom: -16px;
  right: -16px;
  animation-delay: -2s;
}

.badge-icon-circ {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(0, 180, 216, 0.15);
  color: var(--infra-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.badge-icon-circ.emerald {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
}

.badge-text-block strong {
  font-size: 13.5px;
  font-weight: 800;
  display: block;
}

.badge-text-block span {
  font-size: 11.5px;
  color: #94a3b8;
}

/* ==========================================================================
   3. DUAL MANUFACTURING FACILITIES COMMAND CENTER
   ========================================================================== */
.dual-plants-section {
  padding: 85px 0;
  background: #f8fafc;
  border-top: 1px solid var(--infra-border);
}

.plants-comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.plant-card-master {
  background: #ffffff;
  border: 1px solid var(--infra-border);
  border-radius: var(--infra-radius-lg);
  overflow: hidden;
  box-shadow: var(--infra-shadow-md);
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.plant-card-master:hover {
  transform: translateY(-4px);
  box-shadow: var(--infra-shadow-lg);
  border-color: #cbd5e1;
}

.plant-photo-box {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.plant-photo-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.plant-card-master:hover .plant-photo-box img {
  transform: scale(1.05);
}

.plant-tag-pill {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: rgba(10, 25, 47, 0.9);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 180, 216, 0.4);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 50px;
}

.plant-area-pill {
  position: absolute;
  bottom: 16px;
  right: 16px;
  padding: 5px 12px;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  color: #38bdf8;
  font-size: 11.5px;
  font-weight: 700;
  border-radius: 6px;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.plant-body-content {
  padding: 30px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.plant-body-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--infra-navy);
  margin: 0 0 10px;
}

.plant-body-addr {
  font-size: 14px;
  color: #475569;
  line-height: 1.5;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.plant-body-addr svg {
  color: var(--infra-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.plant-equipment-heading {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #64748b;
  margin-bottom: 10px;
  display: block;
}

.plant-equipment-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  flex: 1;
}

.plant-equipment-list li {
  font-size: 13.5px;
  color: #334155;
  display: flex;
  align-items: center;
  gap: 9px;
}

.plant-equipment-list li svg {
  color: var(--infra-teal);
  flex-shrink: 0;
}

.plant-buttons-row {
  display: flex;
  gap: 12px;
  margin-top: auto;
}

.btn-plant-maps-action {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  background: var(--infra-primary);
  color: #ffffff;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-plant-maps-action:hover {
  background: var(--infra-primary-hover);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-plant-call-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  color: var(--infra-navy);
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-plant-call-action:hover {
  background: #e2e8f0;
  color: var(--infra-navy);
}

/* ==========================================================================
   4. INTERACTIVE CORE MACHINERY & SPECIFICATIONS MATRIX
   ========================================================================== */
.machinery-matrix-section {
  padding: 85px 0;
  background: #ffffff;
}

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

.btn-machinery-tab {
  padding: 10px 22px;
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-radius: 50px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--infra-navy);
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-machinery-tab:hover {
  background: #e2e8f0;
}

.btn-machinery-tab.active {
  background: #0066cc;
  border-color: #0066cc;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 102, 204, 0.25);
}

.machinery-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.machinery-spec-card {
  background: #f8fafc;
  border: 1px solid var(--infra-border);
  border-radius: var(--infra-radius);
  padding: 26px;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.machinery-spec-card:hover {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: var(--infra-shadow-md);
  transform: translateY(-3px);
}

.machinery-card-badge {
  display: inline-block;
  padding: 4px 10px;
  background: #e0f2fe;
  color: #0284c7;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 12px;
  width: fit-content;
}

.machinery-spec-card h4 {
  font-size: 18px;
  font-weight: 800;
  color: var(--infra-navy);
  margin: 0 0 10px;
}

.machinery-spec-card p {
  font-size: 13.5px;
  color: var(--infra-text-muted);
  line-height: 1.6;
  margin: 0 0 18px;
  flex: 1;
}

.spec-metrics-table {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spec-metric-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  border-bottom: 1px solid #f1f5f9;
  padding-bottom: 6px;
}

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

.spec-lbl {
  color: #64748b;
}

.spec-val {
  font-weight: 700;
  color: var(--infra-navy);
}

/* ==========================================================================
   5. RECREATED QA & TESTING FEATURE (PAGE 5 BROCHURE SCAN RECREATION)
   ========================================================================== */
.qa-feature-section {
  padding: 85px 0;
  background: #f8fafc;
  border-top: 1px solid var(--infra-border);
}

.qa-feature-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 50px;
  align-items: center;
}

.qa-feature-media {
  position: relative;
}

.qa-img-wrapper {
  position: relative;
  border-radius: var(--infra-radius-lg);
  overflow: hidden;
  box-shadow: var(--infra-shadow-lg);
  background: #ffffff;
  border: 1px solid var(--infra-border);
}

.qa-img-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.qa-feature-copy {
  display: flex;
  flex-direction: column;
}

.qa-feature-desc {
  font-size: 16px;
  color: var(--infra-text-muted);
  line-height: 1.7;
  margin: 0 0 32px;
}

/* ==========================================================================
   6. 6-STAGE ZERO-DEFECT PRODUCTION PROCESS FLOW
   ========================================================================== */
.infra-flow-section {
  padding: 85px 0;
  background: #07111d;
  color: #ffffff;
  position: relative;
}

.infra-flow-section .infra-section-heading {
  color: #ffffff;
}

.infra-flow-section .infra-section-subtext {
  color: #94a3b8;
}

.process-flow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.process-card {
  background: rgba(13, 30, 50, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--infra-radius);
  padding: 28px 24px;
  position: relative;
  transition: all 0.3s ease;
}

.process-card:hover {
  background: rgba(13, 30, 50, 0.95);
  border-color: rgba(0, 180, 216, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.4);
}

.process-card-num {
  font-size: 36px;
  font-weight: 900;
  color: rgba(0, 180, 216, 0.3);
  margin-bottom: 8px;
  line-height: 1;
}

.process-card:hover .process-card-num {
  color: var(--infra-cyan);
}

.process-card-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(0, 180, 216, 0.12);
  border: 1px solid rgba(0, 180, 216, 0.3);
  color: #38bdf8;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: 4px;
  margin-bottom: 12px;
}

.process-card-title {
  font-size: 18px;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 10px;
}

.process-card-desc {
  font-size: 13.5px;
  color: #94a3b8;
  line-height: 1.6;
  margin: 0;
}

/* ==========================================================================
   7. CENTRAL METROLOGY & ASTM TESTING SUITE
   ========================================================================== */
.lab-suite-section {
  padding: 85px 0;
  background: #ffffff;
}

.lab-suite-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.lab-equip-card {
  background: #f8fafc;
  border: 1px solid var(--infra-border);
  border-radius: var(--infra-radius);
  padding: 26px;
  transition: all 0.25s ease;
}

.lab-equip-card:hover {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: var(--infra-shadow-md);
  transform: translateY(-3px);
}

.lab-equip-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: #eff6ff;
  color: var(--infra-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.lab-equip-card h4 {
  font-size: 17px;
  font-weight: 800;
  color: var(--infra-navy);
  margin: 0 0 8px;
}

.lab-equip-card p {
  font-size: 13.5px;
  color: var(--infra-text-muted);
  line-height: 1.6;
  margin: 0 0 14px;
}

.lab-std-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: #e2e8f0;
  color: #334155;
  border-radius: 50px;
  font-size: 11.5px;
  font-weight: 700;
}

/* ==========================================================================
   8. PLANT AUDIT CTA STRIP
   ========================================================================== */
.plant-audit-strip {
  margin-top: 60px;
  background: linear-gradient(135deg, #07111d 0%, #0d1e32 100%);
  border-radius: var(--infra-radius-lg);
  padding: 40px 50px;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  border: 1px solid rgba(0, 180, 216, 0.25);
}

.audit-strip-copy h3 {
  font-size: 24px;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 8px;
}

.audit-strip-copy p {
  font-size: 14.5px;
  color: #94a3b8;
  max-width: 650px;
  line-height: 1.6;
  margin: 0;
}

.audit-strip-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-audit-schedule {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--infra-teal);
  color: #07111d;
  font-size: 14.5px;
  font-weight: 700;
  border-radius: 50px;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 6px 20px rgba(0, 180, 216, 0.35);
  transition: all 0.2s ease;
}

.btn-audit-schedule:hover {
  background: #38bdf8;
  transform: translateY(-2px);
  color: #07111d;
}

.btn-audit-wa {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  background: rgba(37, 211, 102, 0.15);
  border: 1.5px solid rgba(37, 211, 102, 0.45);
  color: #25d366;
  font-size: 14.5px;
  font-weight: 700;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-audit-wa:hover {
  background: #25d366;
  color: #07111d;
  transform: translateY(-2px);
}

/* ==========================================================================
   9. RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {
  .infra-hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .brochure-feature-grid {
    grid-template-columns: 1fr;
  }
  
  .qa-feature-grid {
    grid-template-columns: 1fr;
  }
  
  .plants-comparison-grid {
    grid-template-columns: 1fr;
  }
  
  .machinery-cards-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .process-flow-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .lab-suite-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .infra-hero-title {
    font-size: 32px;
  }
  
  .infra-section-heading {
    font-size: 28px;
  }
  
  .four-pillars-grid {
    grid-template-columns: 1fr;
  }
  
  .machinery-cards-grid {
    grid-template-columns: 1fr;
  }
  
  .process-flow-grid {
    grid-template-columns: 1fr;
  }
  
  .lab-suite-grid {
    grid-template-columns: 1fr;
  }
  
  .intel-stats-grid {
    grid-template-columns: 1fr;
  }
  
  .plant-audit-strip {
    padding: 24px 20px;
  }
  
  .floating-infra-badge {
    display: none;
  }
}