/* ==========================================================================
   Cura Dental — Responsive layer
   Desktop (>=1280px) reproduces the Figma frame exactly; everything below
   reflows from those same values.
   ========================================================================== */

/* --------------------------------------------------------------------------
   <= 1279px — tighten the gutter, keep the desktop composition
   -------------------------------------------------------------------------- */

@media (max-width: 1279px) {
  :root {
    --gutter: 48px;
    --fs-h1: 62px;
    --fs-h2-xl: 46px;
    --fs-h2-lg: 40px;
  }

  /* Release the desktop-exact insets and fall back to the fluid gutter. */
  .split--why > .container,
  .split--how > .container,
  .faq > .container {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }

  .split__inner,
  .split--why .split__inner {
    grid-template-columns: 1fr 0.85fr;
    gap: 48px;
    justify-content: stretch;
  }

  .split--how .split__inner,
  .split--reverse .split__inner {
    grid-template-columns: 0.85fr 1fr;
    gap: 48px;
    justify-content: stretch;
  }

  .practice-band .media { max-width: none; }

  .benefits__grid {
    grid-template-columns: 1fr 360px 1fr;
    gap: 32px;
  }

  .benefits__media { height: 560px; }

  .faq__inner {
    grid-template-columns: 1fr 1.3fr;
    gap: 48px;
    justify-content: stretch;
  }
}

/* --------------------------------------------------------------------------
   <= 1024px — tablet landscape
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  :root {
    --gutter: 40px;
    --fs-h1: 54px;
    --fs-h2: 36px;
    --fs-h2-sm: 34px;
    --fs-h2-xl: 40px;
    --fs-h2-lg: 36px;
    --fs-h3: 32px;
    --fs-benefit: 21px;
    --fs-lead-lg: 17px;
  }

  .treatments__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 24px;
  }

  .team__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px 24px;
  }

  .site-footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .benefits__grid {
    grid-template-columns: 1fr;
    gap: 48px;
    max-width: 620px;
    margin-inline: auto;
  }

  .benefits__col--left { text-align: left; }

  .benefits__media {
    height: 520px;
    max-width: 440px;
    width: 100%;
    margin-inline: auto;
    order: -1;
  }

  .hero__media { height: 380px; }
  .split__media { height: 480px; }
}

/* --------------------------------------------------------------------------
   <= 900px — mobile navigation kicks in, split sections stack
   -------------------------------------------------------------------------- */

@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  .site-header__inner { padding-block: 16px; }

  /* Off-canvas navigation panel */
  .site-nav {
    position: fixed;
    inset: 0;
    top: 0;
    z-index: 120;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 96px 32px 40px;
    background: var(--c-white);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    overflow-y: auto;
    transition:
      opacity 560ms var(--ease-gentle),
      transform 640ms var(--ease-soft),
      visibility 0s linear 640ms;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition-delay: 0s;
  }

  .site-nav__link {
    font-size: 22px;
    font-weight: 600;
    padding-block: 18px;
    border-bottom: 1px solid var(--c-border);
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 620ms var(--ease-gentle), transform 620ms var(--ease-soft);
  }

  .site-nav.is-open .site-nav__link {
    opacity: 1;
    transform: none;
    transition-delay: calc(120ms + var(--nav-i, 0) * 55ms);
  }

  .site-nav__link::after { display: none; }

  .site-nav .btn {
    margin-top: 28px;
    justify-content: center;
    padding-block: 16px;
    font-size: var(--fs-small);
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 620ms var(--ease-gentle), transform 620ms var(--ease-soft);
  }

  .site-nav.is-open .btn {
    opacity: 1;
    transform: none;
    transition-delay: calc(120ms + var(--nav-count, 5) * 55ms);
  }

  /* Toggle sits above the open panel */
  .nav-toggle { position: relative; z-index: 130; }

  body.nav-open { overflow: hidden; }

  /* Split sections stack, image first (the Why section keeps its own column
     widths above this point, so it is named here too) */
  .split__inner,
  .split--why .split__inner,
  .split--reverse .split__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .split__media {
    order: -1;
    height: 420px;
    max-width: 520px;
    width: 100%;
  }

  .split__title,
  .split__lead { max-width: none; }

  /* Stacked layouts keep their copy while a film plays; only the card changes
     from the portrait cover to the film's full-width proportions. */
  .split__inner.is-expanded { display: grid; }
  .story__inner.is-expanded { display: flex; }

  .split__inner.is-expanded > .split__body,
  .story__inner.is-expanded > .story__body { display: flex; }

  .is-expanding > .split__body,
  .is-expanding > .story__body { opacity: 1; }

  .faq__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .faq__intro,
  .faq__title,
  .faq__lead { max-width: none; }

  .cta-band__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 36px;
  }

  .cta-band__actions { width: 100%; }
  .cta-band__actions .btn { flex: 1 1 0; min-width: 0; }
}

/* --------------------------------------------------------------------------
   <= 767px — phones
   -------------------------------------------------------------------------- */

@media (max-width: 767px) {
  :root {
    --gutter: 24px;
    --fs-h1: 40px;
    --fs-h2: 30px;
    --fs-h2-sm: 28px;
    --fs-h2-xl: 32px;
    --fs-h2-lg: 30px;
    --fs-h3: 27px;
    --fs-benefit: 20px;
    --fs-lead-lg: 16px;
    --fs-lead: 16px;
    --fs-card-title: 19px;
    --fs-step-title: 18px;
    --fs-name: 18px;
    --r-card: 16px;
  }

  .hero { padding-top: 24px; }
  .hero::after { height: 120px; }
  .hero__title { margin-top: 18px; }
  .hero__lead { margin-top: 18px; }
  .hero__cta { margin-top: 26px; }
  .hero__media { margin-top: 32px; height: 260px; }

  .results { padding-block: 48px 64px; }
  .results__grid { grid-template-columns: 1fr; gap: 16px; margin-top: 32px; }
  .results__grid .media,
  .results__grid .video-card { height: 260px; }

  .stats { padding-block: 44px; }
  .stats__grid { grid-template-columns: 1fr; gap: 32px; }

  .treatments { padding-block: 56px; }
  .treatments__grid { grid-template-columns: 1fr; gap: 36px; margin-top: 32px; }
  .card-treatment .media { height: 300px; }
  .card-treatment { margin: 0; padding: 0; background: none !important; }
  .card-treatment > :not(.media) { margin-inline: 0; }
  .treatments__footer {
    flex-direction: column;
    gap: 12px;
    margin-top: 40px;
    text-align: center;
  }

  .split { padding-block: 56px; }
  .split__media { height: 320px; }
  .split__features { gap: 18px; margin-top: 24px; }
  .split__cta { margin-top: 28px; }
  .steps { gap: 22px; margin-top: 26px; }
  .step { gap: 16px; }
  .step__num { font-size: 26px; }

  .practice-band .media { height: 240px; }

  .benefits { padding-block: 48px 56px; }
  .benefits__grid { margin-top: 40px; gap: 36px; }
  .benefits__col { gap: 32px; }
  .benefits__media {
    height: 400px;
    border-radius: 170px 170px 20px 20px;
  }
  .benefits__badge { width: 62px; height: 62px; }
  .benefits__badge img { width: 24px; height: 30px; }

  .faq { padding-block: 56px; }
  .faq-item__trigger { padding: 18px 20px; font-size: 15px; }
  .faq-item__answer { padding: 0 20px 18px; }

  .team { padding-block: 56px; }
  .team__grid { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; margin-top: 32px; }
  .card-team .media { height: 240px; }

  .cta-band { padding-block: 56px; }
  .cta-band__actions { flex-direction: column; }
  .cta-band__actions .btn { width: 100%; }

  .site-footer { padding-block: 48px 40px; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 36px; }
  .site-footer__logo { width: 190px; height: 61px; }
  .site-footer__blurb { max-width: none; }
  .site-footer__bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-top: 32px;
    text-align: left;
  }

  .widget-whatsapp {
    left: 16px;
    bottom: 16px;
    padding: 12px 18px 12px 16px;
  }

  .widget-chat {
    right: 16px;
    bottom: 16px;
    width: 50px;
    height: 50px;
  }

  /* Slightly shorter travel on small screens so reveals never feel laggy */
  .js-anim [data-reveal='fade-up'] { transform: translate3d(0, 18px, 0); }
  .js-anim [data-reveal='fade-left'],
  .js-anim [data-reveal='fade-right'] { transform: translate3d(0, 18px, 0); }
}

/* --------------------------------------------------------------------------
   <= 400px — small phones
   -------------------------------------------------------------------------- */

@media (max-width: 400px) {
  :root {
    --fs-h1: 34px;
    --fs-h2: 27px;
    --fs-h2-xl: 28px;
  }

  .team__grid { grid-template-columns: 1fr; }
  .card-team .media { height: 300px; }
  .btn { padding: 15px 24px; }
}

/* --------------------------------------------------------------------------
   Mega menu — collapses into an inline accordion inside the off-canvas nav
   -------------------------------------------------------------------------- */

@media (max-width: 900px) {
  .site-nav__item {
    display: block;
    position: static;
    opacity: 0;
    transform: translateY(14px);
    transition:
      opacity 620ms var(--ease-gentle),
      transform 620ms var(--ease-soft);
  }

  .site-nav.is-open .site-nav__item {
    opacity: 1;
    transform: none;
    transition-delay: calc(120ms + var(--nav-i, 0) * 55ms);
  }

  /* The link inside already animated with its parent */
  .site-nav__item .site-nav__link {
    opacity: 1;
    transform: none;
    transition: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }

  .site-nav__caret {
    opacity: 0.7;
    transform: translateY(-3px) rotate(45deg);
    width: 9px;
    height: 9px;
  }

  /* Panel becomes a grid-rows accordion rather than a floating dropdown */
  .mega {
    position: static;
    width: auto;
    transform: none;
    border: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 560ms var(--ease-soft);
  }

  .has-mega.is-open .mega {
    transform: none;
    grid-template-rows: 1fr;
  }

  .mega__inner {
    overflow: hidden;
    max-width: none;
    padding: 0;
  }

  .mega__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding-block: 18px 4px;
  }

  .mega__media { border-radius: 10px; }
  .mega__title { margin-top: 8px; font-size: 15px; }
  .mega__text { display: none; }

  .mega__footer {
    margin-top: 16px;
    margin-bottom: 18px;
    font-size: var(--fs-small);
  }
}

/* Tablets keep the desktop's single row of four: two columns of full 3:2
   photos would push the rest of the menu off the screen. */
@media (min-width: 600px) and (max-width: 900px) {
  .mega__grid { grid-template-columns: repeat(4, 1fr); }
}

/* Two columns all the way down — a single column makes the open menu
   far too tall to scan on a phone. */
@media (max-width: 400px) {
  .mega__grid { gap: 12px; }
  .mega__title { font-size: 14px; }
}