/* =========================================================
   RexIA — Main CSS (refactor)
   ========================================================= */

/* ---------- Reset & tokens ---------- */
* { margin:0; padding:0; box-sizing:border-box; }
:root{
  --rexia-green:#7BC944;
  --rexia-green-dark:#5FA82E;
  --rexia-dark:#0A0A0A;
  --rexia-light:#FFFFFF;

  --bg-primary:#1A1A1A;
  --bg-secondary:rgba(26,26,26,.85);
  --bg-card:rgba(26,26,26,.6);

  --text-primary:#FFF;
  --text-secondary:rgba(255,255,255,.85);
  --text-muted:rgba(255,255,255,.6);

  --border-color:var(--rexia-green);
  --shadow-color:rgba(123,201,68,.22);
  --hex-opacity:.035;

  --radius:16px;
  --radius-sm:12px;
  --space:clamp(16px,2vw,24px);
}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  background:var(--bg-primary);
  color:var(--text-primary);
  overflow-x:hidden;
  transition:background-color .3s,color .3s;
  scroll-behavior:smooth;
  line-height:1.45;
}
a{ color:inherit; text-decoration:none; }
img{ display:block; max-width:100%; height:auto; }

/* Light mode */
body.light-mode{
  --bg-primary:#F5F5F5;
  --bg-secondary:rgba(255,255,255,.92);
  --bg-card:rgba(255,255,255,.86);
  --text-primary:#1A1A1A;
  --text-secondary:rgba(26,26,26,.9);
  --text-muted:rgba(26,26,26,.65);
  --border-color:var(--rexia-green-dark);
  --shadow-color:rgba(95,168,46,.28);
  --hex-opacity:.08;
}

/* ---------- Utilities ---------- */
.container{ max-width:1200px; margin:0 auto; padding:0 2rem; }
.muted{ color:var(--text-muted); }
.divider{ border:none; border-top:1px solid rgba(123,201,68,.22); margin:2rem 0; }

/* ---------- Floating buttons ---------- */
.theme-toggle,.whatsapp-button{
  position:fixed; z-index:1001; width:60px; height:60px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; cursor:pointer;
  border:4px solid var(--text-primary); box-shadow:8px 8px 0 var(--text-primary);
  transition:transform .25s, box-shadow .25s;
  font-size:1.5rem;
}
.theme-toggle{ bottom:30px; right:30px; background:var(--rexia-green); }
.theme-toggle:hover{ transform:translate(4px,4px); box-shadow:4px 4px 0 var(--text-primary); }

.whatsapp-button{
  bottom:110px; right:30px; background:#25D366; color:#fff; font-size:1.8rem;
  animation:pulse 2s infinite;
}
.whatsapp-button:hover{ transform:translate(4px,4px) scale(1.08); box-shadow:4px 4px 0 var(--text-primary); animation:none; }
@keyframes pulse{ 0%,100%{transform:scale(1)} 50%{transform:scale(1.05)} }

/* ---------- Header / Nav ---------- */
header{
  position:fixed; top:20px; left:50%; transform:translateX(-50%);
  width:90%; max-width:1200px; z-index:1000;
  background:var(--bg-secondary); backdrop-filter:blur(20px);
  border:2px solid var(--border-color); border-radius:var(--radius);
  padding:1rem 2rem; box-shadow:0 8px 32px var(--shadow-color);
}
nav{ display:flex; justify-content:space-between; align-items:center; gap:2rem; }

/* Logo com imagens alternadas por tema */
.logo{ 
  display: block;
  height: 40px;
  position: relative;
  transition: opacity .3s;
}

.logo img {
  height: 100%;
  width: auto;
  display: block;
  transition: opacity .3s;
}

/* Mostrar logo-dark no tema escuro */
.logo-dark {
  opacity: 1;
}

.logo-light {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
}

/* Alternar para logo-light no tema claro */
body.light-mode .logo-dark {
  opacity: 0;
}

body.light-mode .logo-light {
  opacity: 1;
}

/* Hover effect */
.logo:hover {
  opacity: 0.8;
}

.nav-links{ display:flex; gap:2rem; list-style:none; }
.nav-links a{ position:relative; font-weight:700; font-size:.95rem; color:var(--text-primary); }
.nav-links a:hover{ color:var(--rexia-green); }
.nav-links a::after{
  content:""; position:absolute; bottom:-6px; left:0; width:0; height:2px; background:var(--rexia-green); transition:width .25s;
}
.nav-links a:hover::after{ width:100%; }

.menu-toggle{
  display:none; background:var(--rexia-green); color:var(--rexia-dark);
  border:3px solid var(--text-primary); border-radius:10px; font-weight:900;
  padding:.55rem .95rem; font-size:1.25rem; box-shadow:6px 6px 0 var(--text-primary);
  transition:transform .2s, box-shadow .2s;
}
.menu-toggle:hover{ transform:translate(3px,3px); box-shadow:3px 3px 0 var(--text-primary); }

.mobile-menu{
  position:fixed; top:100px; right:5%; left:5%; z-index:999;
  background:var(--bg-secondary); border:3px solid var(--border-color);
  border-radius:var(--radius); padding:1.25rem; box-shadow:0 16px 48px var(--shadow-color);
  backdrop-filter:blur(20px); max-height:70vh; overflow-y:auto;
}
.mobile-menu ul{ list-style:none; display:grid; gap:1rem; }
.mobile-menu a{
  display:block; padding:.75rem; border-radius:10px; font-weight:800; color:var(--text-primary);
}
.mobile-menu a:hover{ background:var(--rexia-green); color:var(--rexia-dark); }

/* ---------- Hex background ---------- */
.hex-bg{ position:fixed; inset:0; z-index:0; opacity:var(--hex-opacity); pointer-events:none; }
.hexagon{
  position:absolute; width:100px; height:115px;
  clip-path:polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%);
  background:var(--rexia-green); animation:float 20s infinite ease-in-out;
}
.hexagon:nth-child(1){ top:10%; left:10%; animation-delay:0s; }
.hexagon:nth-child(2){ top:60%; left:80%; animation-delay:3s; }
.hexagon:nth-child(3){ top:30%; right:20%; animation-delay:6s; }
.hexagon:nth-child(4){ bottom:20%; left:30%; animation-delay:9s; }
@keyframes float{ 0%,100%{transform:translateY(0) rotate(0)} 50%{transform:translateY(-28px) rotate(10deg)} }

/* ---------- Layout / Sections ---------- */
main{ position:relative; z-index:1; padding-top:120px; }
.section{ padding:6rem 0; }
.section-title{ font-size:clamp(2.2rem,4.2vw,3rem); font-weight:900; letter-spacing:-1.5px; margin-bottom:.75rem; }
.section-subtitle{ font-size:1.1rem; color:var(--text-muted); margin-bottom:2.5rem; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-block; padding:1rem 2.2rem; border:4px solid var(--text-primary);
  font-weight:900; text-transform:uppercase; font-size:.9rem; letter-spacing:.5px; cursor:pointer;
  transition:transform .2s, box-shadow .2s, background .2s, color .2s;
}
.btn-primary{
  background:var(--rexia-green); color:var(--rexia-dark);
  box-shadow:8px 8px 0 var(--text-primary);
}
.btn-primary:hover{ transform:translate(4px,4px); box-shadow:4px 4px 0 var(--text-primary); }
.btn-secondary{
  background:transparent; color:var(--text-primary); box-shadow:8px 8px 0 var(--rexia-green);
}
.btn-secondary:hover{ background:var(--rexia-green); color:var(--rexia-dark); transform:translate(4px,4px); box-shadow:4px 4px 0 var(--rexia-green); }

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: 8rem 0 6rem;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  background: var(--rexia-green);
  color: var(--rexia-dark);
  font-weight: 900;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 6px;
  border: 3px solid var(--text-primary);
  box-shadow: 6px 6px 0 var(--text-primary);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero .highlight {
  color: var(--rexia-green);
  position: relative;
  display: inline-block;
}

.hero .highlight::after {
  content: "";
  position: absolute;
  bottom: 0.15em;
  left: 0;
  right: 0;
  height: 0.15em;
  background: var(--rexia-green);
  opacity: 0.3;
}

.hero-description {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 2.5rem;
  max-width: 580px;
}

.btn-group {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-hex {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 420px;
  height: 483px;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: linear-gradient(135deg, var(--rexia-green), var(--rexia-green-dark));
  opacity: 0.08;
  animation: float 18s infinite ease-in-out;
}

/* ---------- Services ---------- */
.services{ padding:8rem 0; }
.services-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:2rem; }
.service-card{
  background:var(--bg-card); backdrop-filter:blur(20px); border:2px solid var(--border-color);
  border-radius:var(--radius); padding:2.25rem; position:relative; overflow:hidden; transition:transform .25s, box-shadow .25s;
}
.service-card:hover{ transform:translateY(-6px); box-shadow:0 16px 48px var(--shadow-color); }
.service-icon{
  width:60px; height:69px; clip-path:polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%);
  background:var(--rexia-green); color:var(--rexia-dark); display:flex; align-items:center; justify-content:center; margin-bottom:1rem;
}

/* ---------- Cases ---------- */
.cases{ padding:8rem 0; }
.cases-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(320px,1fr)); gap:2.25rem; }
.case-card{
  background:var(--bg-card); border:3px solid var(--border-color); border-radius:var(--radius);
  padding:2rem; position:relative; transition:transform .25s, box-shadow .25s, border-color .2s;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.case-card::before{
  content:""; position:absolute; inset:0 0 auto 0; height:6px;
  background:linear-gradient(90deg,var(--rexia-green),var(--rexia-green-dark));
}
.case-card:hover{ transform:translateY(-8px); box-shadow:0 20px 60px var(--shadow-color); border-color:var(--rexia-green-dark); }

.case-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.case-icon {
  width: 56px;
  height: 56px;
  min-width: 56px;
  border-radius: 12px;
  background: var(--rexia-green);
  color: var(--rexia-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  border: 2px solid var(--text-primary);
}

.case-meta {
  flex: 1;
}

.case-industry {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--rexia-green);
  margin-bottom: 0.5rem;
}

.case-title {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  margin: 0;
}

.case-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.case-results {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(123, 201, 68, 0.22);
}

.case-result {
  text-align: center;
}

.case-result-value {
  font-size: 2rem;
  font-weight: 900;
  color: var(--rexia-green);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.case-result-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

/* ---------- Clients / Tech / Testimonials / Stats / CTA / Footer ---------- */
.clients{ padding:6rem 0; }
.clients-row{ display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:3rem; align-items:center; justify-items:center; }
.client-pill{
  width:140px; height:50px; background:var(--rexia-green); color:var(--rexia-dark);
  border-radius:8px; display:flex; align-items:center; justify-content:center; font-weight:800; opacity:.85; transition:opacity .2s, transform .2s;
}
.client-pill:hover{ opacity:1; transform:scale(1.05); }

.techstack{ padding:6rem 0; overflow:hidden; }
.techstack-intro{
  font-size:1.1rem; text-align:center; max-width:900px; margin:0 auto 3rem auto;
  color:var(--text-secondary); line-height:1.65; font-weight:400;
}
.techstack-mid-phrase{
  text-align:center; font-size:1.05rem; font-weight:600; color:var(--text-primary);
  margin:2rem 0; opacity:0.85; letter-spacing:-0.01em;
}
.carousel-wrapper{
  position:relative; overflow:hidden; margin-bottom:1.5rem;
  -webkit-mask-image:linear-gradient(to right,transparent,black 10%,black 90%,transparent);
  mask-image:linear-gradient(to right,transparent,black 10%,black 90%,transparent);
}
.carousel-track{
  display:flex; gap:1.5rem; white-space:nowrap; will-change:transform;
}
.carousel-row1{ animation:scroll-right 35s linear infinite; }
.carousel-row2{ animation:scroll-left 35s linear infinite; }
@keyframes scroll-right{
  0%{ transform:translateX(-50%); }
  100%{ transform:translateX(0); }
}
@keyframes scroll-left{
  0%{ transform:translateX(0); }
  100%{ transform:translateX(-50%); }
}
.tech-logo-card{
  flex-shrink:0; width:200px; height:100px; padding:1rem 1.25rem;
  display:flex; align-items:center; justify-content:center;
  border-radius:12px; background:var(--bg-card); border:2px solid var(--border-color);
  backdrop-filter:blur(16px); transition:transform .3s ease, border-color .3s, box-shadow .3s;
}
.tech-logo-card:hover{
  transform:scale(1.05); border-color:var(--rexia-green);
  box-shadow:0 8px 24px var(--shadow-color);
}
.tech-logo-card img{
  max-height:60px; max-width:100%; object-fit:contain;
  filter:brightness(0.95); transition:filter .2s;
}
.tech-logo-card:hover img{ filter:brightness(1.1); }
@media(max-width:768px){
  .tech-logo-card{ width:150px; height:80px; padding:0.75rem; }
  .tech-logo-card img{ max-height:45px; }
  .techstack-intro{ font-size:1rem; padding:0 1rem; }
}

.testimonials{ padding:6rem 0; }
.testimonials-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:2rem; }
.testimonial{
  background:var(--bg-card); border:2px solid var(--border-color); border-radius:var(--radius);
  padding:2rem; color:var(--text-secondary); transition:transform .2s, box-shadow .2s;
}
.testimonial:hover{ transform:translateY(-6px); box-shadow:0 12px 36px var(--shadow-color); }
.testimonial-avatar{
  width:60px; height:60px; border-radius:50%; background:var(--rexia-green);
  border:3px solid var(--text-primary); display:flex; align-items:center; justify-content:center; font-size:1.6rem; margin-bottom:.75rem;
}

.stats{
  padding:6rem 0; background:var(--rexia-green);
  border-top:6px solid var(--text-primary); border-bottom:6px solid var(--text-primary);
}
.stats-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:2.5rem; }
.stat-item{ text-align:center; }
.stat-number{ font-size:clamp(2.2rem,6vw,4rem); font-weight:900; color:var(--rexia-dark); line-height:1; margin-bottom:.4rem; }
.stat-label{ font-size:1rem; font-weight:800; color:var(--rexia-dark); text-transform:uppercase; letter-spacing:.8px; }

.cta{ padding:8rem 0; text-align:center; }
.cta-box{
  background:var(--bg-secondary); border:4px solid var(--border-color); padding:clamp(2rem,4vw,4rem);
  max-width:800px; margin:0 auto; box-shadow:16px 16px 0 var(--shadow-color); border-radius:var(--radius);
}
.cta-box h2{ font-size:clamp(1.8rem,3.6vw,2.5rem); font-weight:900; margin-bottom:1rem; }
.cta-box p{ color:var(--text-secondary); margin-bottom:1.6rem; }
.cta-badge {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.3rem 0.8rem;
  background: var(--rexia-green);
  color: var(--rexia-dark);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

footer{
  background:var(--bg-secondary); border-top:2px solid var(--border-color);
  padding:3rem 0 1.6rem; margin-top:4rem;
}
.footer-content{ display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:2.25rem; margin-bottom:1.6rem; }
.footer-section h4{ color:var(--rexia-green); margin-bottom:.8rem; font-weight:900; text-transform:uppercase; font-size:.9rem; letter-spacing:1px; }
.footer-section ul{ list-style:none; }
.footer-section a{ color:var(--text-muted); margin-bottom:.5rem; display:block; }
.footer-section a:hover{ color:var(--rexia-green); }
.footer-bottom{ text-align:center; padding-top:1.2rem; border-top:1px solid rgba(123,201,68,.22); color:var(--text-muted); font-size:.9rem; }
.footer-legal{ display:flex; justify-content:center; gap:1.25rem; margin-top:.8rem; flex-wrap:wrap; }

/* ---------- Blog / Contato helpers ---------- */
.posts-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:2rem; margin:2rem 0 4rem; }
.post-card{ background:var(--bg-card); padding:1.5rem; border:2px solid var(--border-color); border-radius:var(--radius); }
.post-card p{ color:var(--text-secondary); }

.contact-form{
  max-width:640px; margin:2rem 0 4rem; background:var(--bg-card);
  border:2px solid var(--border-color); border-radius:var(--radius); padding:2rem;
}
.form-row{ display:flex; flex-direction:column; gap:.5rem; margin-bottom:1rem; }
.form-row input,.form-row textarea{
  background:transparent; border:2px solid var(--border-color); color:var(--text-primary);
  padding:.9rem 1rem; border-radius:10px; outline:none;
}
.form-row input:focus,.form-row textarea:focus{ box-shadow:0 0 0 3px rgba(123,201,68,.22); }

/* ========================================
   PORTFOLIO CAROUSEL
   ======================================== */

.portfolio-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.portfolio-head > div {
  flex: 1;
}

.carousel-nav {
  display: flex;
  gap: 0.75rem;
}

.carousel-btn {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  box-shadow: 6px 6px 0 var(--text-primary);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.carousel-btn:hover:not(:disabled) {
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0 var(--text-primary);
}

.carousel-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.carousel-btn i {
  width: 20px;
  height: 20px;
  color: var(--text-primary);
}

.desktop-only {
  display: none;
}

.mobile-only {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.rex-carousel {
  width: 100%;
  overflow: hidden;
  position: relative;
}

.rex-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 8px 2px 20px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  scroll-behavior: smooth;
}

.rex-track::-webkit-scrollbar {
  display: none;
}

.rex-track:focus {
  outline: 3px solid var(--rexia-green);
  outline-offset: 4px;
  border-radius: 12px;
}

.rex-slide {
  scroll-snap-align: start;
  flex: 0 0 clamp(300px, 32vw, 380px);
  max-width: clamp(300px, 32vw, 380px);
}

.rex-card {
  position: relative;
  display: block;
  min-height: 28rem;
  border-radius: 16px;
  overflow: hidden;
  border: 3px solid var(--border-color);
  background: var(--bg-card);
  box-shadow: 10px 10px 0 var(--text-primary);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.2s;
}

.rex-card:hover {
  transform: translate(5px, 5px);
  box-shadow: 5px 5px 0 var(--text-primary);
  border-color: var(--rexia-green-dark);
}

.rex-card:focus {
  outline: 3px solid var(--rexia-green);
  outline-offset: 4px;
}

.rex-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.3s;
}

.rex-card:hover .rex-img {
  transform: scale(1.05);
}

.rex-img[src*="placeholder.svg"] {
  object-fit: contain;
  padding: 2rem;
}

.rex-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.92) 0%,
    rgba(10, 10, 10, 0.5) 40%,
    rgba(10, 10, 10, 0.2) 70%,
    rgba(10, 10, 10, 0) 100%
  );
}

.rex-content {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 24px;
  color: #fff;
  z-index: 1;
}

.rex-title {
  font-weight: 900;
  font-size: 1.15rem;
  line-height: 1.3;
  margin: 0 0 0.75rem;
}

.rex-desc {
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.5;
  margin: 0 0 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 0.95rem;
}

.rex-cta {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  font-weight: 800;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--rexia-green);
  color: var(--rexia-dark);
  padding: 0.65rem 1rem;
  border-radius: 10px;
  border: 3px solid var(--text-primary);
  box-shadow: 6px 6px 0 var(--text-primary);
  transition: transform 0.2s, box-shadow 0.2s;
}

.rex-card:hover .rex-cta {
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0 var(--text-primary);
}

.rex-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 1.5rem;
}

.rex-dots button {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(123, 201, 68, 0.25);
  border: 0;
  cursor: pointer;
  transition: all 0.2s;
  padding: 0;
}

.rex-dots button:hover {
  background: rgba(123, 201, 68, 0.5);
  transform: scale(1.2);
}

.rex-dots button[aria-current="true"] {
  background: var(--rexia-green);
  width: 28px;
  border-radius: 5px;
}

/* ---------- Responsive ---------- */
@media (min-width: 768px) {
  .desktop-only {
    display: flex;
  }
  .mobile-only {
    display: none;
  }
}

@media (max-width: 992px) {
  .section-title {
    font-size: 3.6rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: inline-block;
  }
  
  /* Logo responsiva */
  .logo {
    height: 32px;
  }
  
  .theme-toggle {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
    bottom: 20px;
    right: 20px;
  }
  .whatsapp-button {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    bottom: 85px;
    right: 20px;
  }
  .clients-row {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 2rem;
  }
  
  /* Hero responsive */
  .hero {
    min-height: 70vh;
    padding: 6rem 0 4rem;
  }
  .hero-hex {
    width: 280px;
    height: 322px;
    right: -15%;
  }
  .btn-group {
    flex-direction: column;
  }
  .btn-group .btn {
    width: 100%;
    text-align: center;
  }
  
  /* Portfolio responsive */
  .portfolio-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .rex-slide {
    flex: 0 0 85vw;
    max-width: 85vw;
  }
  .rex-card {
    min-height: 24rem;
  }
  .rex-content {
    padding: 20px;
  }
  .rex-title {
    font-size: 1rem;
  }
  .rex-desc {
    font-size: 0.9rem;
    margin-bottom: 1rem;
  }
  
  /* Case cards responsive */
  .case-results {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .case-result-value {
    font-size: 1.6rem;
  }
}

@media (max-width: 576px) {
  .section-title {
    font-size: 2.6rem;
  }
  
  /* Logo ainda menor em telas muito pequenas */
  .logo {
    height: 28px;
  }
  
  .rex-slide {
    flex: 0 0 90vw;
    max-width: 90vw;
  }
  .rex-card {
    min-height: 22rem;
    box-shadow: 6px 6px 0 var(--text-primary);
  }
  .rex-card:hover {
    transform: translate(3px, 3px);
    box-shadow: 3px 3px 0 var(--text-primary);
  }
  .carousel-btn {
    width: 42px;
    height: 42px;
  }
  .rex-cta {
    font-size: 0.85rem;
    padding: 0.55rem 0.85rem;
  }
}