/* ============================================================
   ANDERSON VETERINARY SURGERY — Responsive Stylesheet
   Mobile-first breakpoints
   ============================================================ */

/* === Tablet: 768px and below === */
@media (max-width: 768px) {

  /* Nav */
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 0; right: -100%;
    width: min(360px, 100vw);
    height: 100dvh;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 2rem 2rem;
    box-shadow: var(--shadow-lg);
    transition: right var(--t-slow);
    overflow-y: auto;
    z-index: 800;
  }
  .main-nav.open { right: 0; }
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 799;
  }
  .nav-overlay.open { display: block; }
  .main-nav > ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: 100%;
  }
  .main-nav > ul > li { width: 100%; }
  .main-nav > ul > li > a {
    width: 100%;
    padding: .85rem 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    font-size: 1rem;
  }
  .main-nav > ul > li > a:hover { background: none; }
  .dropdown {
    position: static;
    opacity: 1;
    pointer-events: all;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 0 1rem;
    display: none;
  }
  .has-dropdown.open .dropdown { display: block; }
  .dropdown li a { padding: .6rem .5rem; border-bottom: 1px solid var(--border); }
  .nav-ctas {
    margin-top: 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    gap: .75rem;
    width: 100%;
  }
  .nav-ctas .btn { width: 100%; justify-content: center; }

  /* Grids */
  .grid-2, .grid-2-1, .grid-1-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .emergency-list { grid-template-columns: 1fr; }
  .about-strip { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-strip { grid-template-columns: repeat(3, 1fr); }

  /* Plans */
  .plan-card-cat { flex-direction: column; text-align: center; padding: 1.75rem; }

  /* Hero */
  .hero { padding: 4rem 0 3.5rem; }
  .hero h1 { font-size: 2rem; }
  .hero-sm { padding: 2.5rem 0; }

  /* Trust bar */
  .trust-bar-grid { gap: 1.5rem; justify-content: flex-start; }

  /* Form */
  .form-row { grid-template-columns: 1fr; }
  .form-section { padding: 1.75rem; }

  /* Section */
  .section { padding: 3.5rem 0; }
  .section-lg { padding: 4rem 0; }

  /* Footer */
  .footer-bottom .container { flex-direction: column; text-align: center; }
}

/* === Mobile: 480px and below === */
@media (max-width: 480px) {

  /* Typography */
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.4rem; }

  /* Container */
  .container { padding: 0 1rem; }

  /* Grids */
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-strip { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .btn-group { flex-direction: column; align-items: flex-start; }
  .btn-group .btn { width: 100%; justify-content: center; }

  /* Header */
  .logo img { height: 42px; }
  .header-inner { height: 60px; }

  /* Emergency box */
  .emergency-box { padding: 2rem 1.25rem; }
  .emergency-box .phone-number { font-size: 2.5rem; }

  /* Trust bar */
  .trust-bar-grid { flex-direction: column; align-items: flex-start; gap: .75rem; }

  /* Plans */
  .plans-grid { grid-template-columns: 1fr 1fr; }

  /* Section */
  .section { padding: 2.5rem 0; }

  /* Step indicator */
  .step-label { display: none; }

  /* Lightbox */
  .lightbox-prev { left: .5rem; }
  .lightbox-next { right: .5rem; }
}

/* === Wide: 1200px and above === */
@media (min-width: 1200px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .gallery-strip { grid-template-columns: repeat(5, 1fr); }
}

/* === Reduced motion === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}