/* ==========================================================================
   Responsive — Mobile-First Media Queries
   ========================================================================== */

/* ---------- Mobile (base styles up to 767px) ---------- */

/* Grids collapse to single column on mobile */
.grid--2,
.grid--3,
.grid--4 {
  grid-template-columns: 1fr;
}

/* Split layouts stack on mobile */
.split {
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

.split--reverse {
  direction: ltr;
}

/* Mobile nav */
.navbar__toggle {
  display: flex;
}

.navbar__links {
  display: none;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background: #FFFFFF;
  flex-direction: column;
  padding: var(--space-lg) var(--container-padding);
  gap: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.navbar__links.open {
  display: flex;
}

.navbar__links .btn {
  width: 100%;
  text-align: center;
}

/* Dropdown on mobile */
.navbar__dropdown-menu {
  position: static;
  box-shadow: none;
  opacity: 1;
  visibility: visible;
  transform: none;
  padding-left: var(--space-lg);
  min-width: auto;
  border-radius: 0;
}

.navbar__dropdown:hover .navbar__dropdown-menu {
  transform: none;
}

/* Footer stacks on mobile */
.footer__grid {
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

.footer__bottom {
  flex-direction: column;
  gap: var(--space-md);
  text-align: center;
}

/* Stats wrap on mobile */
.stats {
  gap: var(--space-xl);
}

/* Hero adjustments */
.hero--home {
  text-align: center;
}

.hero--home .hero__title,
.hero--home .hero__subtitle {
  margin-inline: auto;
}

.hero--home .hero__actions {
  justify-content: center;
}

.hero__illustration {
  order: -1;
}

.hero__illustration svg {
  max-width: 300px;
}

/* Case study stats */
.case-card__stats {
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* Section padding reduction */
.section {
  padding-block: var(--space-3xl);
}

.section--sm {
  padding-block: var(--space-2xl);
}

/* ---------- Tablet (768px+) ---------- */

@media (min-width: 768px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .stats {
    gap: var(--space-2xl);
  }

  .section {
    padding-block: var(--space-4xl);
  }
}

/* ---------- Desktop (1024px+) ---------- */

@media (min-width: 1024px) {
  /* Show desktop nav, hide toggle */
  .navbar__toggle {
    display: none;
  }

  .navbar__links {
    display: flex;
    position: static;
    flex-direction: row;
    padding: 0;
    gap: var(--space-xl);
    border-bottom: none;
    box-shadow: none;
    background: transparent;
  }

  .navbar__links .btn {
    width: auto;
  }

  /* Desktop dropdown behavior */
  .navbar__dropdown-menu {
    position: absolute;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    padding-left: 0;
    min-width: 240px;
    border-radius: var(--radius-lg);
  }

  .navbar__dropdown:hover .navbar__dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  /* Grids on desktop */
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

  /* Split layouts side-by-side */
  .split {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
  }

  .split--reverse {
    direction: rtl;
  }

  .split--reverse > * {
    direction: ltr;
  }

  /* Footer full grid */
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .footer__bottom {
    flex-direction: row;
    text-align: left;
  }

  /* Hero layout */
  .hero--home {
    text-align: left;
  }

  .hero--home .hero__title,
  .hero--home .hero__subtitle {
    margin-inline: 0;
  }

  .hero--home .hero__actions {
    justify-content: flex-start;
  }

  .hero__illustration {
    order: 0;
  }

  .hero__illustration svg {
    max-width: 480px;
  }
}

/* ---------- Large Desktop (1280px+) ---------- */

@media (min-width: 1280px) {
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}