.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 0.9375rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
}

.btn:focus {
  outline: 2px solid var(--aeron-blue);
  outline-offset: 2px;
}

.btn:focus:not(:focus-visible) {
  outline: none;
}

.btn:focus-visible {
  outline: 2px solid var(--aeron-blue);
  outline-offset: 2px;
}

.btn__icon {
  width: 1.25em;
  height: 1.25em;
  margin-left: 0.5rem;
  transition: transform var(--transition-fast);
}

.btn:hover .btn__icon {
  transform: translateX(4px);
}

.btn--primary {
  background-color: var(--aeron-blue);
  color: #fff;
}
.btn--primary:hover {
  background-color: #004494;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: transparent;
  color: var(--aeron-navy);
  border-color: var(--aeron-navy);
}
.btn--secondary:hover {
  background-color: var(--aeron-navy);
  color: #fff;
  transform: translateY(-2px);
}

.section--dark .btn--secondary {
  color: #fff;
  border-color: #fff;
}
.section--dark .btn--secondary:hover {
  background-color: #fff;
  color: var(--aeron-navy);
}

.btn--lg { padding: 1rem 2rem; font-size: 1rem; }
.btn--sm { padding: 0.625rem 1.25rem; font-size: 0.8125rem; }
.btn--full { width: 100%; }

@media (max-width: 576px) {
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
  }
  
  .btn--lg { 
    padding: 0.875rem 1.75rem; 
    font-size: 0.9375rem; 
  }
  
  .btn--sm { 
    padding: 0.5rem 1rem; 
    font-size: 0.75rem; 
  }
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: #fff;
  border-bottom: 1px solid var(--aeron-border);
  transition: padding var(--transition-normal), box-shadow var(--transition-normal);
  padding: var(--space-md) 0;
}

.nav--scrolled {
  padding: 0.75rem 0;
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo img {
  height: 50px;
  transition: height var(--transition-normal);
}

.nav--scrolled .nav__logo img {
  height: 44px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--aeron-text);
  transition: color var(--transition-fast);
}

.nav__link:hover, .nav__link--active {
  color: var(--aeron-blue);
}

.nav__link:focus {
  outline: 2px solid var(--aeron-blue);
  outline-offset: 2px;
  border-radius: 2px;
}

.nav__link:focus:not(:focus-visible) {
  outline: none;
}

.nav__cta {
  margin-left: var(--space-sm);
}

.nav__link.nav__cta {
  color: #fff;
}

.nav__link.nav__cta:hover {
  color: #fff;
  background-color: #004494;
}

.nav__hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  position: relative;
  z-index: 110;
}

.nav__hamburger:focus {
  outline: 2px solid var(--aeron-blue);
  outline-offset: 4px;
}

.nav__hamburger:focus:not(:focus-visible) {
  outline: none;
}

.nav__hamburger span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--aeron-navy);
  transition: all var(--transition-fast);
}

.nav__hamburger span:nth-child(1) { top: 0; }
.nav__hamburger span:nth-child(2) { top: 9px; }
.nav__hamburger span:nth-child(3) { bottom: 0; }

.nav__hamburger.active span:nth-child(1) { transform: rotate(45deg); top: 9px; }
.nav__hamburger.active span:nth-child(2) { opacity: 0; }
.nav__hamburger.active span:nth-child(3) { transform: rotate(-45deg); bottom: 9px; }

@media (max-width: 992px) {
  .nav__inner {
    padding: 0 var(--space-md);
  }
  
  .nav__hamburger { display: block; }
  
  .nav__menu {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100vh;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    z-index: 105;
  }
  
  .nav__menu.open {
    opacity: 1;
    pointer-events: auto;
  }
  
  .nav__links {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }
  
  .nav__link { font-size: var(--text-xl); }
  
  .nav__cta {
    margin-left: 0;
    margin-top: var(--space-sm);
  }
}

@media (max-width: 576px) {
  .nav__inner {
    padding: 0 var(--space-sm);
  }
  
  .nav__logo img {
    height: 42px;
  }
  
  .nav--scrolled .nav__logo img {
    height: 38px;
  }
  
  .nav__links {
    gap: var(--space-md);
  }
  
  .nav__link {
    font-size: var(--text-xl);
  }
}

.card {
  background: #fff;
  border: 1px solid var(--aeron-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  height: 100%;
  will-change: transform;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--aeron-blue);
}

.card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  color: var(--aeron-blue);
}

.card__title {
  margin-bottom: var(--space-sm);
  /* Reserve exactly 2 lines at h4 size so all cards align uniformly */
  min-height: 3.75rem; /* h4: 1.5rem × line-height 1.25 × 2 lines */
}

/* Match responsive h4 sizes from global.css */
@media (max-width: 768px) {
  .card__title {
    min-height: 2.8125rem; /* h4: 1.125rem × 1.25 × 2 */
  }
}

@media (max-width: 576px) {
  .card__title {
    min-height: 2.5rem; /* h4: 1rem × 1.25 × 2 */
  }
}

.card__text {
  font-size: var(--text-sm);
  color: var(--aeron-text);
  margin-bottom: var(--space-md);
  line-height: 1.7;
  flex-grow: 1;
}

.card__text:last-child {
  margin-bottom: 0;
}

/* Tags container inside plain .card — push to bottom */
.card > .product-card__tags {
  margin-top: auto;
  padding-top: var(--space-md);
  align-items: center;
  align-content: flex-start;
}

.card__tag {
  display: inline-block;
  padding: 0.4rem 0.5rem;
  background: linear-gradient(135deg, var(--aeron-blue) 0%, #0066cc 100%);
  color: #fff;
  border-radius: 100px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  margin: 0;
  box-shadow: 0 2px 4px rgba(0, 86, 179, 0.2);
  transition: all var(--transition-fast);
  line-height: 1.2;
  font-family: var(--font-primary);
  letter-spacing: 0.03em;
  white-space: nowrap;
  vertical-align: middle;
}

.card__tag:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 86, 179, 0.3);
}

.card--center,
.card[style*="text-align:center"],
.card[style*="text-align: center"] {
  align-items: center;
  text-align: center;
  padding: var(--space-lg);
  background: linear-gradient(135deg, #ffffff 0%, var(--aeron-light-blue) 100%);
  box-shadow: 0 2px 8px rgba(0, 86, 179, 0.08);
}

.card--center:hover,
.card[style*="text-align:center"]:hover,
.card[style*="text-align: center"]:hover {
  background: linear-gradient(135deg, var(--aeron-light-blue) 0%, #ffffff 100%);
  box-shadow: 0 4px 12px rgba(0, 86, 179, 0.15);
}

.card--center h4,
.card[style*="text-align:center"] h4,
.card[style*="text-align: center"] h4 {
  margin-bottom: var(--space-xs);
}

.card--center h5,
.card[style*="text-align:center"] h5,
.card[style*="text-align: center"] h5 {
  margin-bottom: var(--space-sm);
}

.card--center .card__text,
.card[style*="text-align:center"] .card__text,
.card[style*="text-align: center"] .card__text {
  margin-bottom: 0;
}

.card--center h4:only-child,
.card[style*="text-align:center"] h4:only-child,
.card[style*="text-align: center"] h4:only-child {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: 0;
  line-height: 1.3;
}

@media (max-width: 768px) {
  .card--center,
  .card[style*="text-align:center"],
  .card[style*="text-align: center"] {
    padding: var(--space-md);
  }
  
  .card--center h4:only-child,
  .card[style*="text-align:center"] h4:only-child,
  .card[style*="text-align: center"] h4:only-child {
    font-size: var(--text-lg);
  }
}

@media (max-width: 576px) {
  .card--center,
  .card[style*="text-align:center"],
  .card[style*="text-align: center"] {
    padding: var(--space-sm) var(--space-md);
  }
}

@media (max-width: 768px) {
  .card {
    padding: var(--space-lg);
  }
}

@media (max-width: 576px) {
  .card {
    padding: var(--space-md);
  }
  
  .card__icon {
    font-size: 2rem;
  }
}

.stat {
  text-align: center;
  padding: var(--space-lg);
}

.stat__number {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--aeron-blue);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.section--dark .stat__number {
  color: #fff;
}

.stat__divider {
  width: 40px;
  height: 3px;
  background-color: var(--aeron-teal);
  margin: var(--space-sm) auto;
}

.stat__divider--light {
  background-color: #fff;
  opacity: 0.3;
}

.stat__label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--aeron-navy);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.4;
}

.stat__label--light {
  color: #fff;
}

@media (max-width: 768px) {
  .stat {
    padding: var(--space-md);
  }
  
  .stat__number {
    font-size: var(--text-3xl);
  }
}

@media (max-width: 576px) {
  .stat {
    padding: var(--space-sm);
  }
  
  .stat__number {
    font-size: var(--text-2xl);
  }
  
  .stat__label {
    font-size: 0.75rem;
  }
}

.footer {
  background-color: var(--aeron-navy);
  color: #fff;
  padding: var(--space-2xl) 0 var(--space-md) 0;
  border-top: 5px solid var(--aeron-blue);
}

.footer__grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

@media (max-width: 992px) {
  .footer__grid { 
    grid-template-columns: 1fr 1fr;
    padding: 0 var(--space-md);
    gap: var(--space-lg);
  }
}

@media (max-width: 576px) {
  .footer {
    padding: var(--space-xl) 0 var(--space-md) 0;
  }
  
  .footer__grid { 
    grid-template-columns: 1fr;
    padding: 0 var(--space-sm);
    gap: var(--space-lg);
  }
}

.footer__brand img {
  height: 40px;
  margin-bottom: var(--space-md);
  background-color: #fff;
  padding: 8px;
  border-radius: var(--border-radius);
}

.footer__brand p {
  color: rgba(255,255,255,0.7);
  font-size: 0.9375rem;
  max-width: 300px;
  line-height: 1.6;
}

.footer__heading {
  color: #fff;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__link {
  color: rgba(255,255,255,0.7);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
  line-height: 1.5;
}

.footer__link:hover {
  color: #fff;
  opacity: 1;
}

.footer__link:focus {
  outline: 2px solid var(--aeron-blue);
  outline-offset: 2px;
  border-radius: 2px;
}

.footer__link:focus:not(:focus-visible) {
  outline: none;
}

.footer__bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg) 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__copy {
  color: rgba(255,255,255,0.5);
  font-size: 0.8125rem;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .footer__bottom {
    padding: var(--space-md) var(--space-md) 0;
  }
}

@media (max-width: 576px) {
  .footer__bottom {
    padding: var(--space-md) var(--space-sm) 0;
  }
  
  .footer__bottom-inner {
    flex-direction: column;
    text-align: center;
  }
  
  .footer__copy {
    font-size: 0.75rem;
  }
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--aeron-navy);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  background-color: #fff;
  border: 2px solid var(--aeron-border);
  border-radius: var(--border-radius);
  color: var(--aeron-text);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: 2px solid var(--aeron-blue);
  outline-offset: 0;
  border-color: var(--aeron-blue);
}

.form-input:focus-visible, .form-select:focus-visible, .form-textarea:focus-visible {
  outline: 2px solid var(--aeron-blue);
  outline-offset: 0;
}

.form-input:hover, .form-select:hover, .form-textarea:hover {
  border-color: var(--aeron-blue);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .form-group {
    margin-bottom: var(--space-md);
  }
  
  .form-row {
    gap: var(--space-md);
  }
}

@media (max-width: 576px) {
  .form-row { 
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .form-input, .form-select, .form-textarea {
    font-size: 0.9375rem;
  }
}

.cta-banner {
  background-color: var(--aeron-light-blue);
  border-left: 4px solid var(--aeron-blue);
  padding: var(--space-xl);
  border-radius: var(--border-radius-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-xl);
}

.cta-banner h3 {
  color: var(--aeron-navy);
  margin-bottom: 0.5rem;
}

.cta-banner p {
  color: var(--aeron-text);
  line-height: 1.6;
}

.cta-banner__actions {
  display: flex;
  gap: var(--space-md);
  flex-shrink: 0;
}

@media (max-width: 992px) {
  .cta-banner {
    padding: var(--space-lg);
    gap: var(--space-lg);
  }
}

@media (max-width: 768px) {
  .cta-banner {
    flex-direction: column;
    text-align: center;
    padding: var(--space-lg);
  }
  
  .cta-banner__actions {
    flex-direction: column;
    width: 100%;
  }
  
  .cta-banner__actions .btn {
    width: 100%;
  }
}

@media (max-width: 576px) {
  .cta-banner {
    padding: var(--space-md);
  }
}