.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-6);
}

.scroll-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(10px) scale(0.9);
  transition: all var(--dur-std) var(--ease-bounce);
  z-index: var(--z-sticky);
  pointer-events: none;
}

.scroll-top-btn.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
}

.badge--primary {
  background: var(--clr-surface-2);
  color: var(--clr-primary);
}

.badge--accent {
  background: rgba(20, 240, 181, 0.12);
  color: var(--clr-accent-dark);
}

.badge--muted {
  background: var(--clr-border);
  color: var(--clr-text-muted);
}

.nav__mobile-footer {
  display: none;
}

@media (max-width: 1200px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 1024px) {
  .header.scrolled {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .grid-4,
  .grid-3,
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100dvh;
    z-index: var(--z-modal);
    background: var(--clr-dark);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--dur-slow) var(--ease-out);
    overflow-y: auto;
    padding: var(--sp-20) var(--sp-6) var(--sp-8);
  }

  .nav__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgb(255 255 255 / 22%);
    background: rgb(255 255 255 / 8%);
    color: #ffffff;
    font-size: 1.1rem;
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .nav__dropdown {
    position: static;
    transform: translateY(-4px);
    left: auto;
    top: auto;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    box-shadow: none;
    background: transparent;
    border: none;
    display: block;
    max-height: 0;
    overflow: hidden;
    margin-top: 0;
    padding: 0 0 0 var(--sp-3);
    transition:
      max-height 0.32s ease,
      opacity 0.24s ease,
      transform 0.24s ease,
      margin-top 0.24s ease;
  }

  .nav__item.open .nav__dropdown {
    transform: translateY(0);
    left: auto;
    top: auto;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    max-height: 520px;
    margin-top: 0.25rem;
  }

  .nav__item:not(.open):hover .nav__dropdown,
  .nav__item:not(.open):focus-within .nav__dropdown {
    transform: translateY(-4px);
    left: auto;
    top: auto;
  }

  .nav__mobile-footer {
    display: block;
    margin-top: auto;
    padding-top: 1.25rem;
    border-top: 1px solid rgb(255 255 255 / 12%);
  }

  .nav__mobile-cta {
    width: 100%;
    justify-content: center;
    margin-bottom: 0.9rem;
  }

  .nav__mobile-socials {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    width: 100%;
  }

  .nav__mobile-social {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgb(255 255 255 / 18%);
    background: rgb(255 255 255 / 8%);
    color: rgb(255 255 255 / 88%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition:
      background var(--dur-std) var(--ease-std),
      border-color var(--dur-std) var(--ease-std),
      color var(--dur-std) var(--ease-std);
  }

  .nav__mobile-social:hover,
  .nav__mobile-social:focus-visible {
    background: rgb(0 61 255 / 22%);
    border-color: rgb(0 61 255 / 55%);
    color: #ffffff;
  }
}

@media (max-width: 768px) {
  .grid-4,
  .grid-3,
  .grid-2,
  .card-grid,
  .footer-grid,
  .hero__grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 108px;
  }

  .hero__visual {
    display: none;
  }

  .process-steps {
    grid-template-columns: 1fr !important;
  }

  .step-connector {
    display: none;
  }
}

@media (max-width: 480px) {
  :root {
    --container-pad: 1rem;
    --section-py: 2.5rem;
  }

  .btn--xl {
    padding: 0.9rem 1.5rem;
    font-size: var(--text-base);
  }
}