/* ================================================================
   OM Technology — Responsive Stylesheet
   Mobile-first breakpoints: 480 → 768 → 1024 → 1280 → 1440+
   ================================================================ */

/* ── Large Desktop (1440px+) ────────────────────────────────── */
@media (min-width: 1440px) {
  :root { --section-py: 104px; }

  .hero .container { gap: 80px; }
  .hero-headline { font-size: 4.25rem; }
  .industries-grid { grid-template-columns: repeat(6, 1fr); }
}

/* ── Desktop (max 1279px tweaks) ─────────────────────────────── */
@media (max-width: 1279px) {
  .industries-grid { grid-template-columns: repeat(5, 1fr); }
}

/* ── Tablet & below (max 1023px) ─────────────────────────────── */
@media (max-width: 1023px) {

  /* Navigation */
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 20px;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform .3s ease;
    margin: 0;
    z-index: 1000;
    border-top: 1px solid var(--border);
    box-shadow: 4px 0 24px rgba(0,0,0,.1);
  }

  .nav-links--open {
    transform: translateX(0);
  }

  .nav-overlay { display: block; }
  .nav-overlay--visible { opacity: 1; pointer-events: auto; }

  .nav-link {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    border-bottom: 1px solid var(--surface);
  }

  .nav-cta {
    display: none;
  }

  .hamburger { display: flex; }

  /* Hero */
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero-subheadline { max-width: 100%; }

  .hero-visual { order: -1; }

  .device-mockup { max-width: 360px; }

  /* Services */
  .services-grid { grid-template-columns: repeat(2, 1fr); }

  /* Pricing */
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid-bottom { max-width: 100%; }

  .pricing-card--popular { transform: none; }
  .pricing-card--popular:hover { transform: translateY(-4px); }

  /* Costs */
  .costs-grid { grid-template-columns: repeat(2, 1fr); }

  /* Add-ons */
  .addons-grid { grid-template-columns: repeat(2, 1fr); }

  /* Industries */
  .industries-grid { grid-template-columns: repeat(4, 1fr); }

  /* Portfolio */
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }

  /* Why Us */
  .why-grid { grid-template-columns: repeat(2, 1fr); }

  /* Process */
  .process-steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .process-steps::before { display: none; }

  .process-step {
    flex-direction: row;
    text-align: left;
    gap: 20px;
  }

  .step-number {
    width: 56px;
    height: 56px;
    font-size: 1rem;
    flex-shrink: 0;
    margin-bottom: 0;
  }

  .step-content { flex: 1; }

  /* Trust */
  .trust .container { grid-template-columns: repeat(2, 1fr); }

  /* Contact */
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }

  /* Footer */
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  /* Pricing bottom */
  .pricing-grid-bottom { grid-template-columns: repeat(2, 1fr); }
}

/* ── Mobile (max 767px) ──────────────────────────────────────── */
@media (max-width: 767px) {

  :root { --section-py: 56px; }

  .container { padding: 0 16px; }

  /* Section headers */
  .section-header { margin-bottom: 36px; }
  .section-title { font-size: 1.625rem; }
  .section-subtitle { font-size: .9375rem; }

  /* Hero */
  .hero { padding: 72px 0 56px; }
  .hero-headline { font-size: 2rem; letter-spacing: -.02em; }
  .hero-subheadline { font-size: 1rem; }

  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  .hero-benefits { justify-content: center; }

  .device-mockup { max-width: 300px; }

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

  .service-card { padding: 24px; }

  /* Pricing */
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-grid-bottom { grid-template-columns: 1fr; }

  .pricing-card { padding: 28px 24px; }

  /* Costs */
  .costs-grid { grid-template-columns: 1fr; }

  /* Add-ons */
  .addons-grid { grid-template-columns: 1fr; }

  /* Industries */
  .industries-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .industry-card { padding: 16px 10px; gap: 8px; }
  .industry-icon { font-size: 1.75rem; }
  .industry-name { font-size: .75rem; }

  /* Portfolio */
  .portfolio-grid { grid-template-columns: 1fr; }

  /* Why */
  .why-grid { grid-template-columns: 1fr; }

  /* Trust */
  .trust .container { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .trust { padding: 36px 0; }

  /* Process (already column on tablet, fine as-is) */
  .step-number { width: 48px; height: 48px; font-size: .875rem; }

  /* FAQ */
  .faq-question { padding: 16px 18px; font-size: .9375rem; }
  .faq-answer-inner { padding: 0 18px 16px; }

  /* Contact */
  .enquiry-form-card { padding: 24px 20px; }

  .form-row { grid-template-columns: 1fr; gap: 0; }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .footer-bottom-links { justify-content: center; flex-wrap: wrap; gap: 12px; }

  /* WhatsApp float */
  .whatsapp-float { bottom: 20px; right: 20px; }
  .whatsapp-float-btn { width: 52px; height: 52px; }

  .btt { bottom: 84px; right: 20px; }

  /* Separate costs */
  .separate-costs { padding: 20px 16px; }
}

/* ── Small mobile (max 480px) ────────────────────────────────── */
@media (max-width: 479px) {

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

  .industries-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .industry-card { padding: 12px 8px; }
  .industry-icon { font-size: 1.5rem; }
  .industry-name { font-size: .6875rem; }

  .process-step { flex-direction: column; align-items: center; text-align: center; }

  .section-tag { font-size: .6875rem; }

  .benefit-chip { font-size: .75rem; }
}

/* ── Print ───────────────────────────────────────────────────── */
@media print {
  .header,
  .whatsapp-float,
  .btt,
  .hero-visual,
  .hero-actions,
  .footer { display: none !important; }

  .hero { background: none; color: #000; padding: 20px 0; }
  .hero-headline { color: #000; }
  .hero-subheadline { color: #333; }
  .text-gradient { -webkit-text-fill-color: #1E40AF; }

  * { box-shadow: none !important; }
  a { color: #1E40AF; }
  a::after { content: " (" attr(href) ")"; font-size: .8em; }
}

/* ── Reduced Motion ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }

  .whatsapp-float-btn::before { animation: none; }
  .badge-dot { animation: none; }
}

/* ── Dark Mode (respects OS preference) ─────────────────────── */
@media (prefers-color-scheme: dark) {
  /* Only apply dark mode if explicitly wanted — for now keep light as default */
  /* Uncomment the block below to enable automatic dark mode */

  /*
  :root {
    --bg: #0F172A;
    --surface: #1E293B;
    --surface-2: #334155;
    --card: #1E293B;
    --text: #F1F5F9;
    --text-muted: #94A3B8;
    --border: #334155;
  }

  .header { background: rgba(15, 23, 42, .95); }
  .footer { background: #020617; }
  */
}