/* LieTech Responsive - Mobile-first */

/* ===== MOBILE (base, under 768px) ===== */
.hamburger {
  display: flex;
}

.main-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: right 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 999;
}
.main-nav.is-open {
  right: 0;
}

.nav-list {
  flex-direction: column;
  gap: 2rem;
  text-align: center;
}
.nav-link {
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  color: #333 !important;
}
.header-cta {
  display: none;
}

/* Mobile dropdown */
.nav-dropdown {
  position: static;
  transform: none;
  opacity: 1;
  visibility: visible;
  min-width: 0;
  background: none;
  border: none;
  box-shadow: none;
  padding: 1rem 0 0;
  display: none;
}
.nav-item-dropdown.is-open .nav-dropdown {
  display: block;
  transform: none;
}
.nav-dropdown-link {
  color: #666 !important;
  font-size: 0.9rem;
  padding: 0.65rem 0;
}
.nav-dropdown-link:hover,
.nav-dropdown-link.is-active {
  color: var(--color-accent) !important;
  background: none;
}

/* Mobile grids */
.services-grid {
  grid-template-columns: 1fr !important;
  gap: 1.5rem;
}
.testimonials-grid {
  grid-template-columns: 1fr;
  gap: 2rem;
}
.stats-inner {
  flex-direction: column;
  gap: 2rem;
}
.stat-divider {
  width: 40px;
  height: 1px;
}
.about-grid {
  grid-template-columns: 1fr;
  gap: 3rem;
}
.team-portraits {
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}
.portrait-name {
  font-size: 0.72rem;
}
.portrait-role {
  font-size: 0.6rem;
}
.footer-inner {
  grid-template-columns: 1fr;
  gap: 2rem;
  text-align: center;
}
.footer-link {
  justify-content: center;
}
.social-links {
  justify-content: center;
}
.hero-scroll {
  display: none;
}
.assoc-logos {
  gap: 1.5rem;
}
.assoc-logo-item img {
  height: 60px;
}
.hero-quotes {
  height: 5rem;
}

/* ===== TABLET (768px+) ===== */
@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  .stats-inner {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .stat-divider {
    width: 1px;
    height: 50px;
  }
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
    text-align: left;
  }
  .footer-link {
    justify-content: flex-start;
  }
  .social-links {
    justify-content: flex-start;
  }
  .hero-scroll {
    display: flex;
  }
  .assoc-logo-item img {
    height: 80px;
  }
  .hero-quotes {
    height: 3.5rem;
  }
  .testimonials-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

/* ===== DESKTOP (1024px+) ===== */
@media (min-width: 1024px) {
  .hamburger {
    display: none;
  }
  .main-nav {
    position: static;
    width: auto;
    height: auto;
    background: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .nav-list {
    flex-direction: row;
    gap: 2.5rem;
  }
  .nav-link {
    font-size: 0.78rem;
    letter-spacing: 0.12em;
  }
  .header-cta {
    display: inline-block;
  }
  .nav-dropdown {
    position: absolute;
    display: block;
    opacity: 0;
    visibility: hidden;
    min-width: 280px;
    background: rgba(58, 58, 66, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    padding: 0.75rem 0;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  }
  .nav-item-dropdown.is-open .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }
  .nav-dropdown-link {
    color: rgba(255, 255, 255, 0.7) !important;
    font-size: 0.75rem;
    padding: 0.75rem 1.75rem;
  }
  .nav-dropdown-link:hover,
  .nav-dropdown-link.is-active {
    color: var(--color-accent) !important;
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr) !important;
  }
  .testimonials-grid {
    grid-template-columns: 1fr 1fr !important;
    gap: 3rem;
  }
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
  }
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  }
  .assoc-logo-item img {
    height: 100px;
  }
}

/* ===== LARGE DESKTOP (1400px+) ===== */
@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}