/* ==========================================================================
   MR Móveis Planejados — Landing Page
   Tema inspirado na referência: fundo escuro, laranja vibrante, tipografia
   geométrica arredondada (Jost), cards arredondados e depoimentos estilo Google.
   ========================================================================== */

:root {
  --black: #0a0a0a;
  --black-2: #000000;
  --charcoal: #1b1b1b;
  --card-dark: #1c1c1c;
  --card-dark-border: #2c2c2c;
  --white: #ffffff;
  --gray-100: #f4f4f4;
  --gray-200: #e6e6e6;

  --text-dark: #17140f;
  --text-gray: #545045;
  --text-light: #f6f4ef;
  --text-light-soft: #c6c1b6;

  --orange: #ff7426;
  --orange-hover: #e8611a;
  --gold: #f2b500;
  --terracotta: #cd7a45;
  --terracotta-text: #2a1608;
  --whatsapp: #25d366;
  --whatsapp-hover: #1ebe5a;

  --font-head: 'Jost', sans-serif;
  --font-body: 'Jost', sans-serif;

  --container: 1180px;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 20px 45px -18px rgba(0, 0, 0, 0.55);
  --shadow-soft: 0 16px 34px -14px rgba(0, 0, 0, 0.12);
  --transition: 0.25s ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text-light);
  background: var(--black);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 500;
  line-height: 1.2;
  margin: 0 0 0.5em;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.1rem, 4.4vw, 3.5rem); color: var(--text-light); font-weight: 500; }
h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); }
h3 { font-size: 1.25rem; font-weight: 500; }

p { margin: 0 0 1em; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 100px 0; background: var(--black); color: var(--text-light); }

/* Section-specific backgrounds (matching the alternating dark/light rhythm) */
#diferenciais, #servicos, #projetos { background: var(--black-2); }
#depoimentos { background: var(--white); color: var(--text-dark); }
#solucoes { background: var(--charcoal); }
#sobre { background: var(--white); color: var(--text-dark); }
#faq, #contato { background: var(--black-2); }

#depoimentos h2, #sobre h2 { color: var(--text-dark); }
#depoimentos .eyebrow, #sobre .eyebrow { color: var(--orange); }

.section-head { max-width: 720px; margin: 0 0 56px; }
.section-head.reveal { margin-left: auto; margin-right: auto; text-align: center; }
.section-lead { color: var(--text-light-soft); font-size: 1.05rem; }
#depoimentos .section-lead, #sobre .section-lead { color: var(--text-gray); }
.section-note { color: var(--text-light-soft); font-size: 0.85rem; }
#depoimentos .section-note { color: var(--text-gray); }
.section-cta { text-align: center; margin-top: 48px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--orange);
  margin: 0 0 0.8em;
}
.eyebrow-break { display: none; }

h2 { color: var(--orange); }
#diferenciais h2, #servicos h2, #solucoes h2, #projetos h2, #faq h2, #contato h2 { color: var(--orange); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--orange);
  color: #fff;
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Curved section dividers ---------- */
.curve { line-height: 0; margin-top: -1px; }
.curve svg { width: 100%; height: 70px; display: block; }
.curve-to-charcoal { background: var(--white); }
.curve-to-charcoal path { fill: var(--charcoal); }
.curve-to-black { background: var(--white); }
.curve-to-black path { fill: var(--black-2); }
.curve-to-white { background: var(--black-2); }
.curve-to-white path { fill: var(--white); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 17px 46px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.98rem;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  font-family: var(--font-head);
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 12px 26px -10px rgba(255, 116, 38, 0.55);
}
.btn-primary:hover { background: var(--orange-hover); }

.btn-whatsapp {
  background: var(--whatsapp);
  color: #fff;
  box-shadow: 0 10px 24px -10px rgba(37, 211, 102, 0.55);
  margin: 20px 0;
}
.btn-whatsapp:hover { background: var(--whatsapp-hover); }

.btn-sm { padding: 11px 28px; font-size: 0.88rem; }
.btn-block { width: 100%; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-light-soft);
  margin: 18px 0;
  transition: border-color var(--transition);
}
.chip:hover { border-color: var(--orange); }
.chip svg { color: var(--orange); flex-shrink: 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: opacity 0.4s ease;
  opacity: 1;
}
.site-header.scrolled:not(.nav-open) {
  opacity: 0;
  pointer-events: none;
}

/* Logo "tag": square top, rounded bottom, flush with the very top of the page */
.logo-tag {
  position: absolute;
  top: 0;
  left: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-radius: 0 0 20px 20px;
  padding: 10px 18px 14px;
  box-shadow: 0 14px 26px -10px rgba(0, 0, 0, 0.45);
  z-index: 10;
}
.logo-tag img { height: 40px; width: auto; display: block; }

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand-spacer { width: 104px; flex-shrink: 0; }

.main-nav { margin-left: auto; }

@media (min-width: 1101px) {
  .header-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
  }
  .brand-spacer { grid-column: 1; }
  .main-nav { grid-column: 2; justify-self: center; margin-left: 0; }
  .header-actions { grid-column: 3; justify-self: end; }
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0;
}
.main-nav a {
  font-size: 0.94rem;
  font-weight: 400;
  color: var(--text-light-soft);
  transition: color var(--transition);
  position: relative;
}
.main-nav a:hover { color: var(--orange); }
.main-nav .nav-cta { display: none; }
.main-nav .btn.btn-primary { color: #fff; font-weight: 700; }
.main-nav .btn.btn-primary:hover { color: #fff; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-light);
  margin: 0 auto;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  padding: 68px 0 76px;
  min-height: 88vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transition: opacity 1.8s ease;
}
.hero-bg-img.is-active { opacity: 1; }
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(100deg, rgba(6,5,4,0.92) 0%, rgba(8,7,6,0.78) 45%, rgba(10,8,6,0.5) 100%),
    linear-gradient(0deg, rgba(0,0,0,0.55), rgba(0,0,0,0.1) 40%);
}

.hero-grid {
  position: relative;
  z-index: 2;
}
.hero-copy {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero h1 { font-size: clamp(2.6rem, 5.4vw, 4.4rem); }
.hero .eyebrow { font-size: 0.92rem; }
.hero-lead {
  font-size: 1.3rem;
  color: var(--text-light-soft);
  max-width: 52ch;
}
.hero-actions { margin: 30px 0 12px; }
.hero-actions .btn { padding: 20px 52px; font-size: 1.1rem; }
.hero-stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin: 46px 0 0;
  padding: 0;
}
.hero-stats li {
  flex: 1 1 0;
  max-width: 230px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-sm);
  padding: 20px 26px;
  font-size: 0.95rem;
  color: var(--text-light-soft);
  text-align: center;
}
.hero-stats strong {
  display: block;
  font-family: var(--font-head);
  font-size: 2.1rem;
  font-weight: 600;
  color: var(--orange);
}

/* ---------- Grids & cards ---------- */
.grid {
  display: grid;
  gap: 28px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--card-dark);
  border: 1px solid var(--card-dark-border);
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.testimonial-card:hover { transform: none; box-shadow: var(--shadow-soft); }

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 116, 38, 0.1);
  color: var(--orange);
  margin-bottom: 18px;
}
.feature-card h3, .feature-card p { color: var(--text-light); }
.feature-card p { color: var(--text-light-soft); }

.feature-card--highlight {
  background: var(--terracotta);
  border-color: var(--terracotta);
}
.feature-card--highlight .feature-icon { background: rgba(0, 0, 0, 0.18); color: var(--terracotta-text); }
.feature-card--highlight h3, .feature-card--highlight p { color: var(--terracotta-text); }

.service-card { position: relative; }
.service-number {
  display: block;
  font-family: var(--font-head);
  font-size: 2.3rem;
  font-weight: 600;
  color: var(--orange);
  margin-bottom: 10px;
}
.service-card h3, .service-card p { color: var(--text-light); }
.service-card p { color: var(--text-light-soft); }

/* ---------- Testimonials (text cards, Google review style) ---------- */
.testimonial-card {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-soft);
  padding: 32px 26px;
  display: flex;
  flex-direction: column;
}
.testimonial-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.testimonial-who { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.testimonial-who strong { font-size: 1.1rem; color: var(--text-dark); }
.testimonial-who span { font-size: 0.85rem; color: var(--text-gray); }
.avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.google-icon { flex-shrink: 0; }
.testimonial-card .stars { font-size: 1.1rem; color: var(--gold); letter-spacing: 3px; margin-bottom: 14px; }
.testimonial-card p:not(.stars) { color: var(--text-gray); font-size: 1rem; margin-bottom: 0; }

/* ---------- Solutions ---------- */
.solution-card { padding: 0; overflow: hidden; background: var(--card-dark); border-color: var(--card-dark-border); }
.solution-card img { height: 220px; width: 100%; object-fit: cover; }
.solution-body { padding: 22px 24px 26px; border-top: 2px dashed rgba(255, 116, 38, 0.35); }
.solution-body h3 { color: var(--orange); }
.solution-body p { color: var(--text-light-soft); font-size: 0.94rem; margin: 0; }

/* ---------- Projects carousel ---------- */
.projects-section .section-head { margin-bottom: 40px; }
.carousel { position: relative; padding: 0 64px; }
.carousel-track {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.carousel-track::-webkit-scrollbar { display: none; height: 0; }
.carousel-track img {
  height: 380px;
  width: 285px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  cursor: pointer;
  transition: transform 0.3s ease;
}
.carousel-track img:hover { transform: scale(1.03); }
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
  box-shadow: 0 10px 24px -10px rgba(255, 116, 38, 0.55);
}
.carousel-btn:hover { background: var(--orange-hover); transform: translateY(-50%) scale(1.06); }
.carousel-prev { left: 8px; }
.carousel-next { right: 8px; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(5, 4, 3, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img {
  max-width: 90vw;
  max-height: 88vh;
  width: auto;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 30px 70px -20px rgba(0, 0, 0, 0.7);
}
.lightbox-close {
  position: absolute;
  top: 22px;
  right: 26px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: none;
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.lightbox-close:hover { background: rgba(255, 255, 255, 0.24); }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: center;
}
.about-photo img { border-radius: var(--radius); box-shadow: var(--shadow-soft); }
.about-photo figcaption { margin-top: 10px; text-align: center; color: var(--text-gray); }
.about-role { color: var(--orange); font-weight: 500; margin-bottom: 20px; }
.about-copy p { color: var(--text-gray); }
.about-copy em { font-style: italic; }
.about-copy .btn { margin-top: 8px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--card-dark);
  border: 1px solid var(--card-dark-border);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
}
.faq-item summary {
  cursor: pointer;
  font-weight: 500;
  font-family: var(--font-head);
  font-size: 1.05rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-light);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--orange);
  margin-left: 12px;
  flex-shrink: 0;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item p { margin-top: 14px; color: var(--text-light-soft); }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-list { list-style: none; margin: 0 0 8px; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.contact-list li { display: flex; align-items: center; gap: 12px; color: var(--text-light-soft); }
.contact-list svg { color: var(--orange); flex-shrink: 0; }
.social-label { font-size: 0.85rem; color: var(--text-light-soft); margin: 18px 0 8px; }
.social-links { display: flex; gap: 12px; }
.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--text-light-soft);
  transition: color var(--transition), border-color var(--transition);
}
.social-links a:hover { color: var(--orange); border-color: var(--orange); }

.contact-grid--single { grid-template-columns: 1fr; justify-items: center; }
.contact-info--centered { text-align: center; max-width: 560px; }
.contact-info--centered .contact-list { align-items: center; }
.contact-info--centered .social-links,
.contact-info--centered .social-label { justify-content: center; text-align: center; }
.contact-info--centered .social-links { display: flex; }

/* ---------- Footer ---------- */
.site-footer { background: var(--black-2); color: var(--text-light-soft); padding-top: 72px; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: 40px;
  padding-bottom: 56px;
}
.footer-brand img { margin-bottom: 16px; opacity: 0.95; }
.footer-brand p { color: var(--text-light-soft); font-size: 0.92rem; margin-bottom: 20px; }
.site-footer h4 {
  font-family: var(--font-head);
  color: var(--orange);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
  font-weight: 500;
}
.footer-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-nav a, .footer-contact a { color: var(--text-light-soft); font-size: 0.94rem; transition: color var(--transition); }
.footer-nav a:hover, .footer-contact a:hover { color: var(--orange); }
.footer-contact p { margin-bottom: 10px; font-size: 0.94rem; color: var(--text-light-soft); }
.footer-contact .social-links a { border-color: rgba(255,255,255,0.16); color: var(--text-light-soft); }
.footer-contact .social-links a:hover { color: var(--orange); border-color: var(--orange); }

.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 22px 0; }
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: #7a7568;
}
.footer-bottom-inner a { color: var(--text-light-soft); }
.footer-bottom-inner a:hover { color: var(--orange); }

/* ---------- WhatsApp float ---------- */
@keyframes whatsapp-pop-in {
  0% { opacity: 0; transform: scale(0) rotate(-30deg); }
  60% { opacity: 1; transform: scale(1.12) rotate(4deg); }
  100% { opacity: 1; transform: scale(1) rotate(0deg); }
}

.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 600;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--whatsapp);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 28px -8px rgba(37, 211, 102, 0.6);
  transition: transform var(--transition);
  animation: whatsapp-pop-in 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 1.1s backwards;
}
.whatsapp-float:hover { transform: scale(1.08); }

/* ---------- Reveal animations ---------- */
.reveal,
.reveal-left,
.reveal-right,
.reveal-scale {
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition-property: opacity, transform;
  transition-duration: 0.7s;
  transition-timing-function: ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0;
  transform: translateX(-44px);
  transition-property: opacity, transform;
  transition-duration: 0.75s;
  transition-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-left.is-visible { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0;
  transform: translateX(44px);
  transition-property: opacity, transform;
  transition-duration: 0.75s;
  transition-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-right.is-visible { opacity: 1; transform: translateX(0); }

.reveal-scale {
  opacity: 0;
  transform: scale(0.88) translateY(14px);
  transition-property: opacity, transform;
  transition-duration: 0.6s;
  transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
}
.reveal-scale.is-visible { opacity: 1; transform: scale(1) translateY(0); }

/* Icons pop in just after their card settles */
.feature-icon,
.avatar {
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.35s ease;
  transition-delay: calc(var(--reveal-delay, 0ms) + 180ms);
}
.card:not(.is-visible) .feature-icon,
.testimonial-card:not(.is-visible) .avatar {
  opacity: 0;
  transform: scale(0.4) rotate(-14deg);
}
.service-number {
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.35s ease;
  transition-delay: calc(var(--reveal-delay, 0ms) + 180ms);
}
.card:not(.is-visible) .service-number {
  opacity: 0;
  transform: scale(0.5);
}
.solution-card:not(.is-visible) img { opacity: 0; transform: scale(1.08); }
.solution-card img {
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.6s ease;
  transition-delay: var(--reveal-delay, 0ms);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1100px) {
  .main-nav { display: none; }
  .header-actions .btn { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }

  .site-header.nav-open .main-nav {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--black);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 12px 24px 24px;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  .site-header.nav-open .main-nav ul { flex-direction: column; gap: 4px; }
  .site-header.nav-open .main-nav a { display: block; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .site-header.nav-open .main-nav .nav-cta { display: block; border-bottom: none; margin-top: 24px; }
  .site-header.nav-open .main-nav .nav-cta a { border-bottom: none; padding: 0; }
  .site-header.nav-open .main-nav .nav-cta .btn {
    display: inline-flex;
    width: 100%;
    padding-top: 20px;
    padding-bottom: 20px;
    font-size: 1.05rem;
  }

  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .hero { min-height: 0; padding: 52px 0 44px; }
  .hero .eyebrow-break { display: inline; }
  .hero-lead { font-size: 1.05rem; }
  .hero-actions .btn { padding: 17px 38px; font-size: 1rem; }
  .hero-stats { gap: 12px; }
  .hero-stats li { flex-basis: 0; max-width: 150px; padding: 14px 18px; }
  .hero-stats strong { font-size: 1.6rem; }
  .contact-form { padding: 26px; }
  .whatsapp-float { right: 16px; bottom: 16px; width: 52px; height: 52px; }
  .carousel { padding: 0 8px; }
  .carousel-track img { height: 260px; width: 195px; }
  .carousel-btn { width: 40px; height: 40px; }
  .carousel-prev { left: 2px; }
  .carousel-next { right: 2px; }
}