/* ==========================================================================
   Responsive Design - Mobile First
   ========================================================================== */

/* ---- Mobile (base, < 768px) ---- */

@media (max-width: 1023px) {
  .nav-links {
    display: none;
  }

  .nav-cta-desktop {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }
}

.hero-title {
  font-size: clamp(2rem, 8vw, 2.5rem);
}

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

.about-columns {
  grid-template-columns: 1fr;
}

.expertise-grid {
  grid-template-columns: 1fr;
}

.track-list {
  grid-template-columns: 1fr;
}

.services-grid {
  grid-template-columns: 1fr;
}

.content-grid {
  grid-template-columns: 1fr;
}

.footer-inner {
  flex-direction: column;
  text-align: center;
  gap: var(--space-sm);
}

.footer-links {
  flex-wrap: wrap;
  justify-content: center;
}

.contact-links {
  flex-direction: column;
  align-items: center;
}

.contact-btn {
  width: 100%;
  max-width: 300px;
  justify-content: center;
}

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

@media (min-width: 768px) {
  .about-metrics {
    display: flex;
    gap: var(--space-2xl);
  }

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

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

  .contact-links {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .contact-btn {
    width: auto;
    max-width: none;
  }

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

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

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }

  .nav-cta-desktop {
    display: inline-flex;
  }

  .nav-hamburger {
    display: none;
  }

  .nav-mobile.open {
    display: none;
  }

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

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

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

  section {
    padding: var(--space-4xl) 0;
  }
}

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

@media (min-width: 1280px) {
  :root {
    --container-padding: 32px;
  }
}