.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height-mobile);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-white);
  z-index: 1100;
}

.brand img {
  width: auto;
  height: 38px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  line-height: 1;
  color: var(--color-gray-dark);
  white-space: nowrap;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background-color: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background-color: currentColor;
}

.nav-menu {
  position: absolute;
  top: calc(100% + 1px);
  left: 0;
  right: 0;
  display: none;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-white);
}

.nav-menu.is-open {
  display: flex;
}

.nav-link {
  display: inline-block;
  padding: var(--space-2) 0;
  border-bottom: 2px solid transparent;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-dark);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

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

.hero {
  position: relative;
  min-height: 56vh;
  display: flex;
  align-items: center;
  background-color: var(--color-off-white);
}

.landing-hero {
  min-height: calc(100vh - var(--nav-height-mobile));
}

.home-hero {
  /* PLACEHOLDER: Replace with final hero image path once client assets arrive */
  background-image: url("../assets/images/placeholders/home-hero-placeholder.jpg");
  background-size: cover;
  background-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1;
}

.hero h1,
.hero .hero-subheadline {
  color: var(--color-white);
}

.hero-subheadline {
  max-width: 62ch;
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.92);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 14px 32px;
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1;
  transition: background-color var(--transition-fast), color var(--transition-fast),
    border-color var(--transition-fast), transform var(--transition-fast);
}

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

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-accent-hover);
}

.btn-secondary {
  border-color: var(--color-accent);
  background-color: transparent;
  color: var(--color-accent);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.mission-section p {
  font-size: var(--text-lg);
  color: var(--color-gray-dark);
}

.card {
  height: 100%;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card p {
  color: var(--color-gray-mid);
}

.card-link {
  display: inline-block;
  margin-top: var(--space-4);
  border-bottom: 1px solid transparent;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
}

.card-link:hover,
.card-link:focus-visible {
  border-bottom-color: var(--color-accent);
}

.partner-logo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 88px;
  padding: var(--space-4);
  border: 1px dashed var(--color-gray-mid);
  border-radius: var(--border-radius);
  background-color: var(--color-gray-light);
  color: var(--color-gray-dark);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
}

.is-invalid {
  border-color: #b42318;
}

.form-error {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: #b42318;
}

.form-status {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
}

.form-status.is-success {
  color: #027a48;
}

.form-status.is-error {
  color: #b42318;
}

.site-footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
}

.footer-text {
  max-width: 45ch;
  color: rgba(255, 255, 255, 0.78);
}

.footer-brand img {
  width: auto;
  height: auto;
  max-height: 44px;
}

.footer-brand a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-logo {
  filter: brightness(0) invert(1);
}

.footer-company-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-white);
  white-space: nowrap;
}

.site-footer a {
  color: var(--color-olive-light);
  transition: color var(--transition-fast);
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--color-white);
}

.footer-bottom p {
  margin: 0;
  color: var(--color-gray-mid);
  font-size: var(--text-sm);
}

.fade-in-section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in-section {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (min-width: 768px) {
  .navbar {
    height: var(--nav-height-desktop);
  }

  .brand img {
    height: 44px;
  }

  .brand-title {
    font-size: var(--text-lg);
  }

  .nav-toggle {
    display: none;
  }

  .nav-menu {
    position: static;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: var(--space-6);
    padding: 0;
    border: 0;
    background: transparent;
  }

  .hero {
    min-height: 60vh;
  }

  .landing-hero {
    min-height: calc(100vh - var(--nav-height-desktop));
  }
}