/* =========================================
   ShockPFAS™ — Main Stylesheet
   Brand colors:
     Primary Blue:    #1a6bb5
     Dark Navy:       #0d2b4e
     Light Blue:      #5eb6e4
     Accent Blue:     #3498db
     Warning Orange:  #e67e22
     Text Dark:       #1a1a2e
     Text Mid:        #4a5568
     Text Light:      #718096
     Background:      #f7fafc
     White:           #ffffff
   ========================================= */

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #1a1a2e;
  background: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ===== LAYOUT HELPERS ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== TYPOGRAPHY ===== */
.section-tag {
  display: inline-block;
  background: rgba(26, 107, 181, 0.1);
  color: #1a6bb5;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-tag-light {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: #0d2b4e;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-title-light {
  color: #ffffff;
}

.section-intro {
  font-size: 1.05rem;
  color: #4a5568;
  max-width: 700px;
  line-height: 1.75;
}

.section-intro-light {
  color: rgba(255, 255, 255, 0.85);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header .section-intro {
  margin: 0 auto;
}

.section-header-light {
  text-align: center;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.25s ease;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: #1a6bb5;
  color: #ffffff;
  border-color: #1a6bb5;
}

.btn-primary:hover {
  background: #145a9a;
  border-color: #145a9a;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 107, 181, 0.35);
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
}

.btn-primary-outline {
  background: transparent;
  color: #1a6bb5;
  border-color: #1a6bb5;
}

.btn-primary-outline:hover {
  background: #1a6bb5;
  color: #ffffff;
}

.btn-submit {
  background: #1a6bb5;
  color: #ffffff;
  border-color: #1a6bb5;
  width: 100%;
  justify-content: center;
  padding: 16px 28px;
  font-size: 1rem;
  border-radius: 8px;
  margin-top: 8px;
}

.btn-submit:hover {
  background: #145a9a;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 107, 181, 0.35);
}

.btn-footer-cta {
  background: transparent;
  color: #5eb6e4;
  border: 2px solid #5eb6e4;
  padding: 10px 20px;
  font-size: 0.875rem;
  border-radius: 6px;
  margin-top: 8px;
}

.btn-footer-cta:hover {
  background: #5eb6e4;
  color: #0d2b4e;
}

/* ===== NAVIGATION ===== */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(13, 43, 78, 0.08);
  transition: box-shadow 0.3s ease;
}

#site-header.scrolled {
  box-shadow: 0 4px 24px rgba(13, 43, 78, 0.12);
}

.navbar {
  padding: 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  flex-shrink: 0;
}

.logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #4a5568;
  transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #1a6bb5;
  background: rgba(26, 107, 181, 0.07);
}

.nav-cta {
  background: #1a6bb5;
  color: #ffffff !important;
  font-weight: 600;
  margin-left: 8px;
}

.nav-cta:hover {
  background: #145a9a !important;
  color: #ffffff !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #0d2b4e;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ===== HERO SECTION ===== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, #0d2b4e 0%, #1a6bb5 60%, #5eb6e4 100%);
  overflow: hidden;
  padding: 100px 48px 80px;
  gap: 60px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='28'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-content {
  flex: 1;
  max-width: 600px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}

.hero-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-highlight {
  color: #5eb6e4;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 20px 28px;
  backdrop-filter: blur(8px);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: #5eb6e4;
}

.stat-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
}

.hero-image-wrap {
  flex: 1;
  max-width: 560px;
  position: relative;
  z-index: 1;
}

.hero-image {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.4);
  border: 2px solid rgba(255, 255, 255, 0.1);
}

/* ===== PFAS INFO SECTION ===== */
.pfas-section {
  padding: 100px 0;
  background: #f7fafc;
}

.pfas-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.pfas-content p {
  color: #4a5568;
  line-height: 1.75;
  margin-bottom: 16px;
  font-size: 1rem;
}

.pfas-list {
  margin: 24px 0 32px;
}

.pfas-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  color: #4a5568;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  font-size: 0.95rem;
}

.pfas-list li i {
  color: #e67e22;
  flex-shrink: 0;
  margin-top: 3px;
}

.pfas-image-wrap {
  position: relative;
}

.pfas-image {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(13, 43, 78, 0.15);
}

.pfas-image-fallback {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e8f4fd, #bee3f8);
  border-radius: 16px;
  height: 380px;
  color: #1a6bb5;
  text-align: center;
  gap: 16px;
  padding: 40px;
}

.fallback-icon {
  font-size: 4rem;
  opacity: 0.5;
}

.pfas-image-fallback p {
  font-size: 1rem;
  color: #1a6bb5;
  font-weight: 500;
  max-width: 240px;
}

/* ===== TECHNOLOGY SECTION ===== */
.technology-section {
  padding: 100px 0;
  background: #ffffff;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 64px;
}

.tech-card {
  background: #f7fafc;
  border: 1px solid rgba(26, 107, 181, 0.1);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s ease;
}

.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(26, 107, 181, 0.12);
  border-color: rgba(26, 107, 181, 0.3);
}

.tech-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #1a6bb5, #5eb6e4);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.3rem;
  color: #ffffff;
}

.tech-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: #0d2b4e;
  margin-bottom: 12px;
  line-height: 1.3;
}

.tech-card p {
  font-size: 0.9rem;
  color: #4a5568;
  line-height: 1.7;
}

/* ===== COMPARISON TABLE ===== */
.tech-comparison {
  background: #f7fafc;
  border-radius: 16px;
  padding: 48px;
}

.comparison-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: #0d2b4e;
  text-align: center;
  margin-bottom: 32px;
}

.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 560px;
}

.comparison-table th {
  background: #0d2b4e;
  color: #ffffff;
  padding: 14px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
}

.comparison-table th.highlight-col {
  background: #1a6bb5;
}

.comparison-table td {
  padding: 13px 20px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  color: #4a5568;
}

.comparison-table td.highlight-col {
  background: rgba(26, 107, 181, 0.06);
  font-weight: 600;
  color: #0d2b4e;
}

.comparison-table tbody tr:hover td {
  background: rgba(26, 107, 181, 0.04);
}

.comparison-table tbody tr:hover td.highlight-col {
  background: rgba(26, 107, 181, 0.1);
}

.check { color: #27ae60; }
.cross { color: #e74c3c; }
.partial { color: #e67e22; }

/* ===== INDUSTRIES SECTION ===== */
.industries-section {
  padding: 100px 0;
  background: #f7fafc;
}

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

.industry-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 32px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.industry-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(13, 43, 78, 0.1);
  border-color: rgba(26, 107, 181, 0.2);
}

.industry-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #0d2b4e, #1a6bb5);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.3rem;
  color: #ffffff;
}

.industry-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: #0d2b4e;
  margin-bottom: 12px;
}

.industry-card p {
  font-size: 0.88rem;
  color: #4a5568;
  line-height: 1.7;
  margin-bottom: 16px;
}

.industry-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.industry-features li {
  font-size: 0.82rem;
  color: #1a6bb5;
  font-weight: 500;
  padding-left: 12px;
  position: relative;
}

.industry-features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: #5eb6e4;
}

/* ===== VALIDATION SECTION ===== */
.validation-section {
  padding: 100px 0;
  background: #ffffff;
}

.validation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 60px;
}

.validation-stat-card {
  background: #f7fafc;
  border: 1px solid rgba(26, 107, 181, 0.1);
  border-left: 4px solid #1a6bb5;
  border-radius: 12px;
  padding: 32px;
  transition: all 0.3s ease;
}

.validation-stat-card:hover {
  box-shadow: 0 12px 40px rgba(26, 107, 181, 0.1);
}

.validation-number {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: #1a6bb5;
  margin-bottom: 6px;
  line-height: 1;
}

.validation-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: #0d2b4e;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.validation-stat-card p {
  font-size: 0.9rem;
  color: #4a5568;
  line-height: 1.7;
}

.validation-certifications {
  background: #f7fafc;
  border-radius: 16px;
  padding: 48px;
  text-align: center;
}

.validation-certifications h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: #0d2b4e;
  margin-bottom: 32px;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.cert-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #ffffff;
  border: 1px solid rgba(26, 107, 181, 0.12);
  border-radius: 10px;
  padding: 16px 20px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #0d2b4e;
  transition: all 0.2s ease;
}

.cert-item:hover {
  border-color: #1a6bb5;
  background: rgba(26, 107, 181, 0.04);
}

.cert-item i {
  color: #1a6bb5;
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* ===== ABOUT SECTION ===== */
.about-section {
  padding: 100px 0;
  background: #f7fafc;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content p {
  color: #4a5568;
  line-height: 1.75;
  margin-bottom: 16px;
  font-size: 1rem;
}

.mission-pillars {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 36px;
}

.pillar {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.pillar-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: linear-gradient(135deg, #1a6bb5, #5eb6e4);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #ffffff;
}

.pillar h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: #0d2b4e;
  margin-bottom: 4px;
}

.pillar p {
  margin-bottom: 0 !important;
  font-size: 0.88rem;
}

.equipment-showcase {
  position: relative;
}

.equipment-img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 24px 64px rgba(13, 43, 78, 0.2);
}

.equipment-caption {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #0d2b4e;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 14px 20px;
  border-radius: 0 0 16px 16px;
  margin-top: -4px;
}

.equipment-caption i {
  color: #5eb6e4;
  flex-shrink: 0;
}

/* ===== CONTACT SECTION ===== */
.contact-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #0d2b4e 0%, #1a6bb5 100%);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  align-items: start;
}

/* ===== FORM ===== */
.contact-form {
  background: #ffffff;
  border-radius: 16px;
  padding: 40px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: #0d2b4e;
}

.required {
  color: #e74c3c;
}

.form-group input,
.form-group select,
.form-group textarea {
  border: 1.5px solid #e2e8f0;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.92rem;
  font-family: inherit;
  color: #1a1a2e;
  background: #ffffff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #1a6bb5;
  box-shadow: 0 0 0 3px rgba(26, 107, 181, 0.12);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: #e74c3c;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-consent {
  margin-bottom: 24px;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 0.85rem;
  color: #4a5568;
  line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: #1a6bb5;
}

.form-success {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(39, 174, 96, 0.1);
  border: 1px solid rgba(39, 174, 96, 0.3);
  border-radius: 8px;
  padding: 16px 20px;
  color: #1e7e34;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: 16px;
}

.form-success i {
  color: #27ae60;
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.form-error {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(231, 76, 60, 0.08);
  border: 1px solid rgba(231, 76, 60, 0.3);
  border-radius: 8px;
  padding: 16px 20px;
  color: #c0392b;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: 16px;
}

.form-error i {
  color: #e74c3c;
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.form-error a {
  color: #c0392b;
  text-decoration: underline;
}

/* ===== CONTACT INFO CARD ===== */
.contact-info-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  padding: 36px;
  color: #ffffff;
  position: sticky;
  top: 90px;
}

.contact-info-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.contact-details li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.contact-details li i {
  color: #5eb6e4;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}

.contact-details a {
  color: #ffffff;
  transition: color 0.2s;
}

.contact-details a:hover {
  color: #5eb6e4;
}

.why-contact h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 14px;
}

.why-contact ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.why-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.9);
}

.why-contact li i {
  color: #5eb6e4;
}

.response-time {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.8);
}

.response-time i {
  color: #5eb6e4;
}

/* ===== FOOTER ===== */
.site-footer {
  background: #061520;
  color: rgba(255, 255, 255, 0.75);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 64px 0 48px;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-nav h4,
.footer-sectors h4,
.footer-contact h4 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 16px;
}

.footer-nav ul,
.footer-sectors ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav li a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s;
}

.footer-nav li a:hover {
  color: #5eb6e4;
}

.footer-sectors li {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
}

.footer-contact p {
  font-size: 0.88rem;
  margin-bottom: 12px;
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s;
}

.footer-contact a:hover {
  color: #5eb6e4;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-disclaimer {
  font-size: 0.75rem !important;
  font-style: italic;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  /* Nav */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    border-top: 1px solid rgba(0, 0, 0, 0.06);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-link {
    padding: 12px 16px;
    border-radius: 8px;
  }

  .nav-cta {
    margin-left: 0;
    text-align: center;
    justify-content: center;
  }

  /* Hero */
  .hero-section {
    flex-direction: column;
    padding: 100px 24px 60px;
    text-align: center;
    gap: 40px;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-subtitle {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 16px;
  }

  .stat-divider {
    display: none;
  }

  .hero-image-wrap {
    max-width: 100%;
  }

  /* Grids */
  .pfas-grid,
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .tech-grid {
    grid-template-columns: 1fr;
  }

  .industries-grid {
    grid-template-columns: 1fr;
  }

  .validation-grid {
    grid-template-columns: 1fr;
  }

  .cert-grid {
    grid-template-columns: 1fr;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .tech-comparison {
    padding: 28px 20px;
  }
  
  .validation-certifications {
    padding: 28px 20px;
  }

  .contact-form {
    padding: 28px 20px;
  }

  .contact-info-card {
    position: static;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    justify-content: center;
  }

  .hero-badge {
    font-size: 0.72rem;
  }

  .cert-item {
    font-size: 0.82rem;
  }

  .validation-number {
    font-size: 2rem;
  }
}