/* ==========================================================================
   responsive.css — Movie Couple · Chedders Bootstrap Core DNA
   Mobile-first breakpoint overrides — 320px → 1400px+
   ========================================================================== */

/* --------------------------------------------------------------------------
   Smallest Mobile — max 320px (DNA §5.1 Tier 0)
   -------------------------------------------------------------------------- */
@media (max-width: 320px) {

  /* Footer — 4 columns, minimum font sizes */
  .site-footer__top {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 8px;
  }

  .site-footer__col-title {
    font-size: 9px;
    display: none;
  }

  .site-footer__links a {
    font-size: 10px;
  }

  .site-footer__brand-logo span:not(.logo-icon) {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Mobile — max 575px
   -------------------------------------------------------------------------- */
@media (max-width: 575px) {

  .section-padding     { padding-top: 52px;  padding-bottom: 52px; }
  .section-padding--sm { padding-top: 36px;  padding-bottom: 36px; }
  .section-padding--lg { padding-top: 68px;  padding-bottom: 68px; }

  .content-width { padding-left: 16px; padding-right: 16px; }

  h1 { font-size: 24px; }
  h2 { font-size: 20px; }
  h3 { font-size: 16px; }

  /* Navbar */
  .site-nav__links,
  .site-nav__actions .btn-mc {
    display: none;
  }
  .nav-hamburger { display: flex; }

  /* Hero */
  .hero { padding-top: 44px; padding-bottom: 44px; }
  .hero__inner { grid-template-columns: 1fr; gap: 32px; }
  .hero__visual { order: -1; }
  .hero__title { font-size: 24px; }
  .hero__desc  { font-size: 15px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn-mc { width: 100%; justify-content: center; }

  /* Phone mockup — compact */
  .phone-shell { padding: 10px; border-radius: 28px; }
  .phone-screen { border-radius: 20px; }
  .phone-screen__viewing { grid-template-columns: 100px 1fr; }
  .viewer-cam__bg { min-height: 80px; font-size: 20px; }
  .figure-icon { font-size: 36px; }

  /* Grids */
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }

  /* Philosophy block */
  .philosophy-block { padding: 22px 18px; }
  .philosophy-block__text { font-size: 14px; }

  /* CTA Banner */
  .cta-banner { padding: 32px 20px; }
  .cta-banner .btn-mc { width: 100%; justify-content: center; }
  .cta-banner__list { flex-direction: column; align-items: center; gap: 8px; }

  /* Founder note */
  .founder-note { padding: 22px 18px; }
  .founder-note__quote { font-size: 14px; }

  /* Footer — 4 columns locked at all widths (DNA §7.7) */
  .site-footer__top {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 12px;
  }

  .site-footer__tagline {
    max-width: 100%;
    display: none;
  }

  .site-footer__col-title {
    font-size: 10px;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
  }

  .site-footer__links a {
    font-size: 11px;
  }

  .site-footer__social {
    display: none;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
  }

  .site-footer__legal {
    justify-content: center;
  }

  /* Phase items */
  .phase-item { padding: 10px 14px; }
  .why-item   { gap: 12px; padding: 18px 0; }
}

/* --------------------------------------------------------------------------
   Small — 576px to 767px
   -------------------------------------------------------------------------- */
@media (min-width: 576px) and (max-width: 767px) {

  .section-padding { padding-top: 64px; padding-bottom: 64px; }

  .site-nav__links { display: none; }
  .nav-hamburger   { display: flex; }
  .site-nav__actions .btn-mc:first-of-type { display: none; }

  .hero__inner { grid-template-columns: 1fr; gap: 36px; }
  .hero__visual { order: -1; }

  .grid-3,
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .site-footer__top {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 16px;
  }

  .site-footer__links a { font-size: 12px; }
  .site-footer__col-title { font-size: 11px; }
   -------------------------------------------------------------------------- */
@media (min-width: 768px) and (max-width: 991px) {

  .section-padding { padding-top: 72px; padding-bottom: 72px; }

  .site-nav__links { display: none; }
  .nav-hamburger   { display: flex; }
  .site-nav__actions .btn-mc:first-of-type { display: none; }

  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { order: -1; }
  .hero__title { font-size: 30px; }

  .grid-3,
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .site-footer__top {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 20px;
  }

  .site-footer__links a { font-size: 13px; }
  .site-footer__col-title { font-size: 12px; }
   -------------------------------------------------------------------------- */
@media (min-width: 992px) and (max-width: 1199px) {

  .hero__inner { gap: 48px; }
  .hero__title { font-size: 36px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .site-footer__top {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 28px;
  }
}

/* --------------------------------------------------------------------------
   Desktop — 1200px+
   -------------------------------------------------------------------------- */
@media (min-width: 1200px) {
  .hero { padding-top: 96px; padding-bottom: 96px; }
}

/* --------------------------------------------------------------------------
   Wide — 1400px+
   -------------------------------------------------------------------------- */
@media (min-width: 1400px) {
  .content-width { max-width: 1320px; }
}

/* --------------------------------------------------------------------------
   Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in-up { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}