/* ==========================================================================
   DGResonance — responsive.css
   Breakpoints: 1199 / 1023 / 900 / 767 / 639 / 479
   Also contains: anchor offsets, hover-capability rules, reduced motion
   ========================================================================== */

/* Anchor offset so sticky header never covers targeted sections */
section[id], [id]:target { scroll-margin-top: calc(var(--header-h) + 16px); }
#enquiry, #consultation { scroll-margin-top: calc(var(--header-h) + 16px); }

/* ---------- Pointer-capability: hover behaviour for the services dropdown ---------- */
@media (hover: hover) and (min-width: 1024px) {
  .nav-item:hover > .submenu {
    opacity: 1; visibility: visible; transform: translateY(0);
  }
  .nav-item:hover .chev { transform: rotate(180deg); }
}

/* ---------- ≤1199px: slightly tighter header ---------- */
@media (max-width: 1199px) {
  .brand__tag { display: none; }
}

/* ---------- ≤1023px: tablet & below → mobile navigation ---------- */
@media (max-width: 1023px) {
  :root { --header-h: 70px; }

  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }

  .site-nav {
    display: none;
    position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-bottom: 1px solid var(--color-border);
    box-shadow: 0 24px 40px rgba(23, 23, 23, .12);
    padding: 14px var(--gutter) 22px;
    max-height: calc(100dvh - var(--header-h) - 8px);
    overflow-y: auto;
  }
  .site-header.nav-open .site-nav { display: block; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-link { width: 100%; justify-content: space-between; font-size: 1rem; padding: 13px 12px; }
  .nav-link[aria-current="page"]::after { margin-left: auto; }
  .nav-item__row { width: 100%; justify-content: space-between; }
  .nav-item__row .nav-link { flex: 1; }

  .submenu {
    position: static; min-width: 0; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; border-left: 2px solid var(--color-border);
    border-radius: 0; background: transparent;
    margin: 2px 0 6px 14px; padding: 0 0 0 10px; display: none;
  }
  .nav-item.is-open > .submenu,
  .nav-item:focus-within > .submenu { display: block; transform: none; }
  .submenu a { padding: 10px 10px; font-size: .92rem; }
  .submenu .submenu__all { border-top: 1px dashed var(--color-border); }

  .site-nav .btn { width: 100%; margin-top: 14px; }

  .hero__grid,
  .page-hero__grid,
  .split,
  .why-grid,
  .faq-layout,
  .contact-grid { grid-template-columns: 1fr; }

  .split--media-first .split__media { order: 0; }
  .faq-layout__aside { position: static; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-service { grid-template-columns: 1fr; }
  .featured-service__media { min-height: 220px; order: -1; }
  .featured-service__media::after { background: linear-gradient(0deg, var(--color-dark) 0%, rgba(23, 23, 23, .1) 60%, rgba(23, 23, 23, 0) 100%); }

  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }

  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 24px; }
  .process-grid::before { display: none; }

  .footer-main { grid-template-columns: 1fr 1fr; }
}

/* ---------- ≤1023px: readable process cards on tablets and phones ---------- */
@media (max-width: 1023px) {
  .process-grid { grid-template-columns: 1fr; }
  .process-step {
    display: grid; grid-template-columns: 56px minmax(0, 1fr);
    gap: 16px; align-items: start; min-width: 0;
  }
  .process-step__num { margin-bottom: 0; }
  .process-step h3,
  .process-step p { grid-column: 2; min-width: 0; }
}

/* ---------- ≤900px ---------- */
@media (max-width: 900px) {
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: 1fr; }

  /* Keep About and service-page process cards readable on tablets and phones. */
  .process-grid { grid-template-columns: 1fr; }
  .process-step {
    display: grid; grid-template-columns: 56px minmax(0, 1fr);
    gap: 16px; align-items: start;
  }
  .process-step__num { margin-bottom: 0; }
  .process-step h3,
  .process-step p { grid-column: 2; }
}

/* ---------- ≤767px ---------- */
@media (max-width: 767px) {
  body { font-size: 16px; }
  .mv-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .offer-grid { grid-template-columns: 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
  .benefit-grid { grid-template-columns: 1fr; gap: 16px; }
  .quote-block { padding-left: 18px; }
}

/* ---------- ≤639px: phones ---------- */
@media (max-width: 639px) {
  :root {
    --gutter: 18px;
    --wa-fab-size: 54px;
    --chat-fab-size: 54px;
    --edge-r: calc(12px + env(safe-area-inset-right, 0px));
    --edge-b: calc(12px + env(safe-area-inset-bottom, 0px));
    --widget-gap: 10px;
    --chat-h: min(520px, calc(100dvh - 2 * var(--chat-fab-size) - 2 * var(--widget-gap) - 34px - env(safe-area-inset-bottom, 0px)));
  }

  .services-grid,
  .industries-grid,
  .problem-grid { grid-template-columns: 1fr; }

  .service-strip__inner { grid-template-columns: repeat(2, 1fr); }

  .process-grid { grid-template-columns: 1fr; }
  .process-step { display: grid; grid-template-columns: 48px 1fr; gap: 16px; align-items: start; }
  .process-step__num { width: 48px; height: 48px; margin-bottom: 0; font-size: .92rem; }

  .footer-main { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .btn-row { gap: 12px; }
  .btn-row .btn { width: 100%; }

  .faq-item summary { padding: 17px 18px; font-size: .95rem; }
  .faq-item__body { padding: 0 18px 18px; }

  .chat-panel {
    width: min(380px, calc(100% - 2 * var(--edge-r)));
  }
  .wa-fab__text { display: none; }
  .wa-fab__link { padding: 0 12px; }
  .wa-fab__link .wa-fab__icon-wrap { margin-left: 0; }
}

/* ---------- ≤479px: small phones ---------- */
@media (max-width: 479px) {
  .brand img { height: 40px; }
  .footer-brand__logo img { height: 44px; }
  .hero { padding-block: 36px 32px; }
  .msg { max-width: 92%; }
  .chat-suggestions { padding: 10px 12px; }
}

/* ---------- Very small viewports (320px) ---------- */
@media (max-width: 359px) {
  .hero__kicker { font-size: .72rem; padding: 8px 12px; letter-spacing: .06em; }
  .process-step { grid-template-columns: 40px 1fr; }
  .process-step__num { width: 40px; height: 40px; font-size: .82rem; }
  .btn { padding: 14px 18px; font-size: .9rem; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  html.js-reveal [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- High-contrast / forced colours ---------- */
@media (forced-colors: active) {
  .btn, .service-card, .faq-item, .chat-panel { border: 1px solid ButtonText; }
  .text-accent { color: LinkText; background: none; -webkit-text-fill-color: currentColor; }
}