/* ==========================================================================
   WILLIS AR CONDICIONADO — Responsividade
   Breakpoints: 1100px (notebook), 960px (tablet), 640px (celular), 380px (celular pequeno)
   ========================================================================== */

/* Notebook ---------------------------------------------------------------- */
@media (max-width: 1100px) {
  .main-nav { gap: 20px; }
  .nav-list a { padding: 10px 10px; font-size: .9rem; }
  .nav-list a::after { left: 10px; right: 10px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .why__grid { grid-template-columns: repeat(2, 1fr); }
  .why__item { padding: 36px 28px 36px 0; }
  .why__item + .why__item { padding-left: 0; border-left: 0; }
  .why__item:nth-child(even) { padding-left: 28px; border-left: 1px solid rgba(255,255,255,.12); }
  .why__item:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.12); }
  .hero__content { padding-right: 40px; }
  .hero__visual { padding-left: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .intro, .about { gap: 48px; }
}

/* Tablet — menu hamburger -------------------------------------------------- */
@media (max-width: 960px) {
  :root { --header-h: 72px; }

  .site-header { background: var(--navy-800); -webkit-backdrop-filter: none; backdrop-filter: none; }
  .nav-toggle { display: inline-flex; }
  .brand img { height: 30px; }

  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0; z-index: 99;
    flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 28px;
    padding: 28px var(--gutter) 40px; background: var(--navy-800); overflow-y: auto;
    border-top: 1px solid rgba(255,255,255,.08);
    opacity: 0; visibility: hidden; transform: translateY(-12px);
    transition: opacity .3s var(--ease), transform .3s var(--ease), visibility 0s linear .3s;
  }
  .nav-open .main-nav { opacity: 1; visibility: visible; transform: none; transition: opacity .3s var(--ease), transform .3s var(--ease); }
  .nav-open { overflow: hidden; }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list li { border-bottom: 1px solid rgba(255,255,255,.1); }
  .nav-list a { padding: 18px 4px; font-family: var(--font-head); font-size: 1.35rem; font-weight: 600; color: #fff; display: flex; justify-content: space-between; align-items: center; }
  .nav-list a::after { display: none; }
  .nav-list a[aria-current="page"] { color: var(--sky); }
  .main-nav .btn { width: 100%; min-height: 56px; }
  .nav-mobile-extra { display: grid; gap: 12px; }
  .nav-mobile-extra p { font-size: .88rem; color: rgba(255,255,255,.6); margin: 8px 0 0; }

  /* Hero empilhado */
  .hero__grid { grid-template-columns: 1fr; min-height: 0; }
  .hero__content { padding: 56px var(--gutter) 48px; }
  .hero__visual { padding: 48px var(--gutter) 56px; }
  .hero__stage { max-width: 640px; }
  .hero__media { aspect-ratio: 16 / 11; }
  .hero__card { left: 16px; bottom: -28px; }
  .hero__visual { padding-bottom: 88px; }

  .section-head { margin-bottom: 40px; }
  .section-head--split { flex-direction: column; align-items: flex-start; }

  .intro, .about, .contact, .practice, .history__grid, .faq { grid-template-columns: 1fr; }
  .history__grid, .faq { gap: 40px; }
  .faq__media { display: none; }
  .history__photo { max-width: 280px; justify-self: start; }
  .practice { gap: 36px; }
  .practice + .practice { margin-top: 64px; }
  .practice--reverse .practice__media { order: 0; }
  .practice__media { max-width: 640px; }
  .about__media { order: -1; max-width: 640px; }
  .about__media::before { inset: 16px -12px -12px 16px; }

  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 36px 24px; }
  .mvv { grid-template-columns: 1fr; }

  .service-detail { grid-template-columns: 1fr 1fr; gap: 28px 40px; }
  .service-detail__num { grid-column: 1 / -1; font-size: 1.8rem; }

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

/* Capa em telas médias */
@media (max-width: 960px) {
  .hero-cover { min-height: 620px; }
  .hero-cover__overlay { background: linear-gradient(180deg, rgba(6,14,34,.82) 0%, rgba(6,14,34,.7) 55%, rgba(5,40,160,.45) 100%); }
}

/* Celular ------------------------------------------------------------------ */
@media (max-width: 640px) {
  :root { --gutter: 20px; --header-h: 68px; }
  body { font-size: .98rem; }
  h1 { font-size: clamp(2rem, 8.6vw, 2.5rem); }

  .brand img { height: 30px; }

  .hero__content .btn-row .btn { width: 100%; }
  .hero__checks { flex-direction: column; gap: 12px; margin-top: 36px; }
  .hero-cover { min-height: 0; }
  .hero-cover { align-items: flex-start; }
  .hero-cover { background: #0a1633; }
  .hero-cover__inner { padding-top: 56px; padding-bottom: 250px; }
  .hero-cover__bg { top: auto; bottom: 0; height: 330px; object-position: 16% 55%; }
  .hero-cover__overlay { background: linear-gradient(180deg, #0a1633 0, #0a1633 calc(100% - 330px), rgba(10,22,51,.55) calc(100% - 250px), rgba(10,22,51,.05) 100%); }
  .hero-cover .btn-row .btn { width: 100%; }
  .hero-cover__checks { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 32px; }
  .hero__visual { padding-bottom: 40px; }
  .hero__media { aspect-ratio: 4 / 3.3; }
  .hero__card { position: relative; left: auto; bottom: auto; width: calc(100% - 24px); margin: -40px auto 0; }

  .pillars, .grid--4, .grid--3, .grid--2, .why__grid, .steps, .facts { grid-template-columns: 1fr; }
  .why__item, .why__item:nth-child(even) { padding: 30px 0; border-left: 0; }
  .why__item + .why__item { border-top: 1px solid rgba(255,255,255,.12); }

  .card { padding: 26px 22px 22px; }
  .segment { padding: 22px; gap: 16px; }
  .segment__icon { width: 48px; height: 48px; }

  .service-detail { grid-template-columns: 1fr; padding: 36px 0; gap: 20px; }
  .segment-detail { grid-template-columns: 1fr; padding: 26px 22px; gap: 16px; }

  .form-grid, .form-actions, .practice__cols { grid-template-columns: 1fr; }
  .form-card { border-radius: var(--radius); }

  .cta-band .btn-row { width: 100%; }
  .cta-band .btn { flex: 1 1 100%; }
  .btn { white-space: normal; text-align: center; padding: 12px 22px; }

  .footer-grid { grid-template-columns: 1fr; gap: 36px; padding: 56px 0 40px; }
  .footer-bottom .container { flex-direction: column; }

  .wa-float { right: 16px; bottom: 16px; height: 56px; padding: 0 4px; }
  .wa-float__label { display: none; }

  .filters { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; margin-right: calc(var(--gutter) * -1); padding-right: var(--gutter); scrollbar-width: none; }
  .filters::-webkit-scrollbar { display: none; }
  .filter-btn { flex: none; }
}

@media (max-width: 380px) {
  :root { --gutter: 16px; }
  .brand img { height: 27px; }
  .contact-item { padding: 16px; gap: 14px; }
}