/* =========================================
   ShockPFAS™ — Responsive Supplement
   Additional breakpoint overrides
   ========================================= */

/* ===== PRINT STYLES ===== */
@media print {
  #site-header,
  .hero-actions,
  .contact-section,
  .site-footer {
    display: none;
  }

  body {
    font-size: 12pt;
    color: #000;
  }

  .container {
    max-width: 100%;
  }

  .tech-grid,
  .industries-grid,
  .validation-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  section {
    page-break-inside: avoid;
    padding: 40px 0 !important;
  }
}

/* ===== ACCESSIBILITY ===== */
:focus-visible {
  outline: 3px solid #1a6bb5;
  outline-offset: 3px;
}

.skip-to-content {
  position: absolute;
  top: -100%;
  left: 16px;
  background: #1a6bb5;
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 8px 8px;
  font-weight: 600;
  z-index: 9999;
  transition: top 0.2s;
}

.skip-to-content:focus {
  top: 0;
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger for cards */
.tech-card:nth-child(1) { transition-delay: 0.05s; }
.tech-card:nth-child(2) { transition-delay: 0.10s; }
.tech-card:nth-child(3) { transition-delay: 0.15s; }
.tech-card:nth-child(4) { transition-delay: 0.20s; }
.tech-card:nth-child(5) { transition-delay: 0.25s; }
.tech-card:nth-child(6) { transition-delay: 0.30s; }

.industry-card:nth-child(1) { transition-delay: 0.05s; }
.industry-card:nth-child(2) { transition-delay: 0.10s; }
.industry-card:nth-child(3) { transition-delay: 0.15s; }
.industry-card:nth-child(4) { transition-delay: 0.20s; }
.industry-card:nth-child(5) { transition-delay: 0.25s; }
.industry-card:nth-child(6) { transition-delay: 0.30s; }

.validation-stat-card:nth-child(1) { transition-delay: 0.05s; }
.validation-stat-card:nth-child(2) { transition-delay: 0.10s; }
.validation-stat-card:nth-child(3) { transition-delay: 0.15s; }
.validation-stat-card:nth-child(4) { transition-delay: 0.20s; }

/* ===== SMOOTH SECTION TRANSITIONS ===== */
section {
  position: relative;
}

/* ===== MOBILE TOUCH TARGETS ===== */
@media (max-width: 768px) {
  .btn {
    min-height: 48px;
  }

  .nav-link {
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: 16px; /* prevent iOS auto-zoom */
  }
}