/* ===== RESPONSIVE DESIGN ===== */

/* Mobile First - Small screens */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .site-header {
    height: auto;
    flex-wrap: wrap;
    padding: 0.6rem 1rem;
    gap: 0.6rem;
  }

  .site-header-tagline {
    display: none;
  }

  .site-header-nav {
    gap: 0.3rem;
  }

  .pill {
    padding: 0.35rem 0.6rem;
    font-size: 0.72rem;
  }

  .auth-split {
    grid-template-columns: 1fr;
  }

  .auth-hero {
    display: none;
  }

  .auth-panel {
    padding: 2rem 1.25rem;
  }

  .btn {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
  }

  .auth-buttons {
    flex-direction: column;
  }

  .auth-buttons .btn {
    width: 100%;
  }

  .scan-form {
    flex-direction: column;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero p {
    font-size: 1rem;
  }
}

/* Tablet - Medium screens */
@media (min-width: 481px) and (max-width: 860px) {
  html {
    font-size: 15px;
  }

  .auth-split {
    grid-template-columns: 1fr;
  }

  .auth-hero {
    display: none;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

/* Desktop - Large screens */
@media (min-width: 769px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .scan-form {
    display: flex;
    align-items: flex-end;
    gap: 1rem;
  }

  .scan-form input {
    flex: 1;
  }

  .scan-form button {
    flex-shrink: 0;
  }
}

/* Very large screens */
@media (min-width: 1200px) {
  .container {
    padding: 0 2rem;
  }
}

/* Print styles */
@media print {
  body {
    background-color: white;
  }

  .site-header,
  .footer,
  .btn,
  form {
    display: none;
  }

  main {
    min-height: auto;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}