/* ==========================================================================
   Brand Promoter 3x (B3) — Layout, Header, Navigation, Grids & Footer
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 1.25rem;
}

.logo-wrap {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.header-logo-img {
  height: 42px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  border-radius: 0 !important;
  display: block;
  transition: var(--transition);
}

.footer-logo-img {
  height: 38px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  border-radius: 0 !important;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  padding: 0.35rem 0;
  position: relative;
}

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

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-shrink: 0;
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.6rem;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-hero {
  padding: 5.5rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, rgba(17, 18, 21, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.section-title-wrap {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.section-title {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Grid Systems */
.process-grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  max-width: 1040px;
  margin: 0 auto 3.5rem;
}

.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

/* Footer */
.footer {
  margin-top: auto;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  font-size: 0.925rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}