/* ==========================================================================
   MJR Engenharia — landing page
   Cores e medidas extraídas do layout do Claude Design.
   ========================================================================== */

:root{
  --ink:#040708;
  --ink-soft:#14181B;
  --ink-line:#23292E;
  --orange:#F79348;
  --orange-dark:#E07E32;
  --orange-deep:#B5701F;
  --peach:#FCEBDB;
  --sand:#F7F5F2;
  --line:#ECE8E2;
  --border:#E3DED7;
  --text:#040708;
  --text-mid:#525960;
  --text-soft:#646B73;
  --text-dim:#AFB5BC;
  --max:1240px;
  --pad:32px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
  color:var(--text);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
::selection{background:var(--orange);color:var(--ink)}
input,textarea,select,button{font-family:inherit}
.is-hidden{display:none !important}

.container{max-width:var(--max);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad);width:100%}

/* ---------- animação ao rolar a página ----------
   JS acrescenta .reveal-in quando o elemento entra na tela; o atraso
   escalonado entre irmãos é aplicado via style.transitionDelay no JS. */
.reveal{
  opacity:0;transform:translateY(26px);
  transition:opacity .7s cubic-bezier(.16,.8,.3,1), transform .7s cubic-bezier(.16,.8,.3,1);
  will-change:opacity,transform;
}
.reveal.reveal-in{opacity:1;transform:none}

/* ---------- tipografia de seção ---------- */
.eyebrow{
  font-size:12.5px;font-weight:700;letter-spacing:1.6px;
  text-transform:uppercase;color:var(--orange-deep);margin-bottom:13px;
}
.eyebrow-accent{color:var(--orange)}

h1,h2,h3,.card-link,cite{font-family:'Saira',sans-serif}

h1{
  font-weight:800;font-size:clamp(34px,4.6vw,62px);line-height:1.03;
  letter-spacing:-1px;color:var(--ink);
}
h1 .accent{color:var(--orange)}

.section-head{max-width:620px;margin-bottom:44px}
.section-head h2,.contact-info h2{
  font-weight:700;font-size:clamp(26px,3vw,42px);line-height:1.08;letter-spacing:-.6px;
}
.section-sub{margin-top:16px;font-size:16.5px;line-height:1.6;color:#5B626A}

.h2-light{
  font-weight:700;font-size:clamp(24px,2.8vw,38px);line-height:1.12;
  color:#fff;letter-spacing:-.5px;
}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:700;text-decoration:none;border:none;cursor:pointer;
  border-radius:999px;padding:15px 26px;font-size:15.5px;
  transition:transform .18s,box-shadow .18s,background-color .18s;
}
.btn-primary{background:var(--orange);color:var(--ink);box-shadow:0 10px 26px rgba(247,147,72,.38)}
.btn-primary:hover{background:#F9A461;transform:translateY(-2px);box-shadow:0 14px 32px rgba(247,147,72,.46)}
.btn-ghost{background:#fff;color:var(--ink);border:1.5px solid var(--border)}
.btn-ghost:hover{border-color:var(--orange);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff;padding:13px 24px;font-size:14.5px}
.btn-dark:hover{background:#1C2125}
.btn-sm{padding:11px 20px;font-size:14px;box-shadow:0 6px 18px rgba(247,147,72,.35)}
.btn-lg{padding:17px 30px;font-size:16px;white-space:nowrap;box-shadow:0 12px 30px rgba(247,147,72,.42)}
.btn-block{width:100%;border-radius:12px;padding:16px;font-size:16px;box-shadow:0 10px 24px rgba(247,147,72,.34)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,
select:focus-visible,textarea:focus-visible{outline:3px solid var(--orange-dark);outline-offset:2px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease, background-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  box-shadow:0 10px 26px rgba(4,7,8,.07);
}
.header-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand img{height:34px;width:auto}
.nav-desktop{display:flex;align-items:center;gap:30px}
.nav-desktop a{
  font-size:14.5px;font-weight:600;color:#2B3035;text-decoration:none;letter-spacing:.2px;
}
.nav-desktop a:not(.btn):hover{color:var(--orange-dark)}

.nav-toggle{
  display:none;width:44px;height:44px;background:transparent;border:none;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{
  display:block;width:24px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .22s,opacity .22s;
}
.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)}

.nav-mobile{
  display:none;flex-direction:column;gap:4px;
  padding:12px var(--pad) 22px;border-top:1px solid var(--line);background:#fff;
}
.nav-mobile a{
  font-size:16px;font-weight:600;color:#2B3035;text-decoration:none;padding:13px 0;
  border-bottom:1px solid var(--line);
}
.nav-mobile a.btn{margin-top:14px;border-bottom:none;justify-content:center}
.nav-mobile.is-open{display:flex}

/* ---------- hero ---------- */
.hero{padding:124px var(--pad) 70px;background:radial-gradient(120% 120% at 85% 0%, #FBEFE4 0%, #ffffff 46%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:0}
.lead{margin-top:24px;font-size:18px;line-height:1.6;color:var(--text-mid);max-width:480px}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px}
.hero-media img{
  width:100%;height:420px;object-fit:cover;border-radius:22px;
  box-shadow:0 24px 60px rgba(4,7,8,.16);
}

/* ---------- painéis escuros ---------- */
.panel-dark{
  background:var(--ink);border-radius:26px;position:relative;overflow:hidden;color:#fff;
}
.glow{position:absolute;border-radius:50%;pointer-events:none}
.glow-tr{top:-80px;right:-60px;width:280px;height:280px;
  background:radial-gradient(circle, rgba(247,147,72,.22) 0%, transparent 70%)}
.glow-br{bottom:-90px;right:-40px;width:320px;height:320px;
  background:radial-gradient(circle, rgba(247,147,72,.2) 0%, transparent 70%)}

/* ---------- sobre ---------- */
.about{padding:30px var(--pad) 84px}
.about-grid{padding:54px;display:grid;grid-template-columns:.92fr 1.08fr;gap:50px;align-items:center;max-width:var(--max)}
.about-media{position:relative}
.about-media img{width:100%;height:340px;object-fit:cover;border-radius:18px}
.badge-years{
  position:absolute;bottom:-22px;right:-10px;background:var(--orange);color:var(--ink);
  border-radius:16px;padding:18px 22px;box-shadow:0 16px 34px rgba(0,0,0,.35);
}
.badge-years-num{font-family:'Saira',sans-serif;font-weight:800;font-size:34px;line-height:1}
.badge-years-label{font-size:12.5px;font-weight:700;line-height:1.2;margin-top:2px}
.about-copy{position:relative}
.about-copy p{margin-top:18px;font-size:15.5px;line-height:1.7;color:var(--text-dim)}
.chips{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.chip{
  background:var(--ink-soft);border:1px solid var(--ink-line);color:#E7EAED;
  font-size:13.5px;font-weight:600;padding:9px 15px;border-radius:999px;
}

/* ---------- serviços ---------- */
.services{padding:46px var(--pad) 90px;background:var(--sand)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

.service-card{
  text-align:left;background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:30px 28px;cursor:pointer;color:inherit;font:inherit;
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
.service-card:hover{transform:translateY(-5px);box-shadow:0 20px 40px rgba(4,7,8,.1);border-color:var(--orange)}
.icon-box{
  width:50px;height:50px;border-radius:13px;background:var(--peach);color:var(--orange-dark);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.service-card .icon-box{margin-bottom:20px}
.service-card h3{font-weight:700;font-size:21px}
.service-card p{margin-top:9px;font-size:14.5px;line-height:1.55;color:var(--text-soft)}
.card-link{
  margin-top:18px;display:inline-flex;align-items:center;gap:7px;
  color:var(--orange-dark);font-weight:700;font-size:13.5px;
}

/* ---------- projetos ---------- */
.projects{padding:84px var(--pad) 40px}
.projects-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  flex-wrap:wrap;gap:20px;margin-bottom:40px;
}
.projects-head h2{font-weight:700;font-size:clamp(26px,3vw,42px);line-height:1.08;letter-spacing:-.6px}
.projects-note{font-size:15px;color:#6B7178;max-width:340px;line-height:1.6}

.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:240px;gap:16px}
.project{position:relative;margin:0;height:100%;border-radius:16px;overflow:hidden}
.project-tall{grid-row:span 2}
.project img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.project:hover img{transform:scale(1.05)}
.project figcaption{
  position:absolute;left:16px;bottom:16px;z-index:2;
  background:rgba(4,7,8,.82);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  color:#fff;font-size:12.5px;font-weight:700;padding:8px 14px;border-radius:9px;
}

/* ---------- faixa CTA ---------- */
.cta-section{padding:64px var(--pad)}
.cta-band{
  padding:56px;display:flex;justify-content:space-between;align-items:center;
  gap:40px;flex-wrap:wrap;max-width:var(--max);
}
.cta-copy{position:relative;max-width:600px}
.cta-copy p{margin-top:16px;font-size:16px;color:var(--text-dim);line-height:1.6}
.cta-band .btn{position:relative}

/* ---------- depoimentos ---------- */
.testimonials{padding:40px var(--pad) 90px;background:var(--sand)}
.testimonial{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px 28px;
  display:flex;flex-direction:column;
}
.quote-mark{color:var(--orange);opacity:.9;flex-shrink:0}
.testimonial p{margin-top:18px;font-size:15.5px;line-height:1.65;color:#3A4046;flex:1}
.testimonial cite{
  margin-top:22px;padding-top:18px;border-top:1px solid #EFEBE5;
  font-style:normal;font-weight:700;font-size:14.5px;line-height:1.25;color:var(--ink);
}

/* ---------- faq ---------- */
.faq{padding:40px var(--pad) 90px}
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:820px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:6px 26px;transition:border-color .18s;
}
.faq-item[open]{border-color:var(--orange)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-family:'Saira',sans-serif;font-weight:700;font-size:17px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  position:relative;flex-shrink:0;width:24px;height:24px;border-radius:50%;
  background:var(--peach);
}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;top:50%;left:50%;background:var(--orange-dark);
  transform:translate(-50%,-50%);transition:transform .2s ease;
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg) scaleY(0)}
.faq-item p{margin:0 0 20px;font-size:15px;line-height:1.65;color:var(--text-soft)}

/* ---------- contato ---------- */
.contact{padding:90px var(--pad)}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:54px;padding:0}
.contact-info .section-sub{max-width:380px}
.contact-list{margin-top:34px;display:flex;flex-direction:column;gap:18px}
.contact-item{display:flex;align-items:center;gap:15px;text-decoration:none;color:inherit}
.contact-label{display:block;font-size:12.5px;color:#8A9099;font-weight:600}
.contact-value{display:block;font-family:'Saira',sans-serif;font-weight:700;font-size:17px;color:var(--ink);word-break:break-word;text-decoration:none}
.contact-value-sm{font-size:15.5px}
a.contact-item:hover .contact-value,a.contact-value:hover{color:var(--orange-dark)}

.form-card{
  background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px;
  box-shadow:0 30px 60px rgba(4,7,8,.07);
}
.tabs{display:flex;gap:6px;background:#F2EFEA;padding:6px;border-radius:14px;margin-bottom:28px}
.tab{
  flex:1;border:none;cursor:pointer;font-weight:700;font-size:14.5px;padding:12px;
  border-radius:10px;background:transparent;color:#6B7178;transition:all .15s;
}
.tab.is-active{background:var(--ink);color:#fff;box-shadow:0 4px 12px rgba(4,7,8,.2)}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.span-2{grid-column:span 2}
.field{display:block}
.field-label{display:block;font-size:13px;font-weight:600;color:#3A4046;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1.5px solid var(--border);border-radius:11px;
  font-size:14.5px;outline:none;background:#fff;color:var(--ink);
  transition:border-color .15s;
}
.field textarea{resize:vertical;min-height:88px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--orange)}
.field.has-error input,.field.has-error select{border-color:#D9534F}
.field-error{display:none;margin-top:6px;font-size:12.5px;color:#D9534F;font-weight:600}
.field.has-error .field-error{display:block}

.notice{
  background:#FBF3EA;border:1px solid #F2D9C2;border-radius:12px;padding:13px 16px;
  font-size:13.5px;color:#8A5A22;line-height:1.5;
}
.file-drop{
  border:1.5px dashed #D8CFC4;border-radius:11px;padding:18px;
  display:flex;align-items:center;gap:13px;background:#FBFAF8;color:var(--orange-dark);
}
.file-drop input{font-size:13.5px;color:#5B626A;width:100%}

/* honeypot: fora da tela, mas não display:none — bots ignoram display:none */
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

.form-alert{
  margin-top:18px;background:#FDECEA;border:1px solid #F5C6C2;border-radius:11px;
  padding:12px 15px;font-size:13.5px;color:#A8322C;line-height:1.5;
}
#leadForm .btn-block{margin-top:22px}
.btn[disabled]{opacity:.6;cursor:progress;transform:none}

.form-success{text-align:center;padding:40px 10px}
.success-icon{
  width:64px;height:64px;border-radius:50%;background:var(--peach);color:var(--orange-dark);
  display:flex;align-items:center;justify-content:center;margin:0 auto 20px;
}
.form-success h3{font-weight:700;font-size:23px}
.form-success p{margin-top:10px;font-size:15px;color:var(--text-soft);line-height:1.6;max-width:340px;margin-inline:auto}
.form-success .btn{margin-top:24px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);padding:56px var(--pad) 30px;color:#fff}
.footer-top{
  display:flex;justify-content:space-between;align-items:flex-start;
  flex-wrap:wrap;gap:36px;padding-bottom:34px;border-bottom:1px solid #1C2125;
}
.footer-brand{max-width:320px}
.footer-brand img{height:38px;width:auto}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.65;color:#8B9199}
.footer-cols{display:flex;gap:60px;flex-wrap:wrap}
.footer-title{
  font-family:'Saira',sans-serif;font-weight:700;font-size:13px;letter-spacing:1px;
  text-transform:uppercase;color:var(--orange);margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a,.footer-links span{font-size:14.5px;color:#B6BBC1;text-decoration:none;word-break:break-word}
.footer-links a:hover{color:var(--orange)}
.footer-bottom{padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.footer-bottom span{font-size:13px;color:#6A7077}

/* ---------- whatsapp ---------- */
.wa-float{
  position:fixed;bottom:28px;right:28px;z-index:300;
  width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 24px rgba(37,211,102,.45);text-decoration:none;
  transition:transform .18s,box-shadow .18s;
}
.wa-float:hover{transform:scale(1.1);box-shadow:0 12px 32px rgba(37,211,102,.6)}

/* ---------- modal ---------- */
@keyframes mjrFade{from{opacity:0}to{opacity:1}}
@keyframes mjrPop{from{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:none}}

.modal-overlay{
  position:fixed;inset:0;z-index:500;background:rgba(4,7,8,.62);
  -webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);
  display:flex;align-items:center;justify-content:center;padding:24px;
  animation:mjrFade .2s ease;
}
.modal{
  background:#fff;border-radius:22px;max-width:560px;width:100%;
  max-height:88vh;overflow-y:auto;animation:mjrPop .26s cubic-bezier(.2,.7,.3,1);
}
.modal-head{background:var(--ink);padding:32px 34px;border-radius:22px 22px 0 0;position:relative;overflow:hidden}
.modal-head .eyebrow{position:relative;margin-bottom:10px;font-size:12px;letter-spacing:1.4px}
.modal-head h3{position:relative;font-weight:700;font-size:28px;color:#fff;line-height:1.1}
.modal-close{
  position:absolute;top:18px;right:18px;z-index:2;width:36px;height:36px;border-radius:50%;
  background:#1C2125;border:none;color:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.modal-close:hover{background:#2B3035}
.modal-body{padding:30px 34px 34px}
.modal-body>p{font-size:15.5px;line-height:1.7;color:#464C53}
.modal-bullets{margin:24px 0 28px;display:flex;flex-direction:column;gap:13px}
.modal-bullet{display:flex;align-items:flex-start;gap:12px}
.modal-bullet-icon{
  width:24px;height:24px;border-radius:7px;background:var(--peach);color:var(--orange-dark);
  flex-shrink:0;display:flex;align-items:center;justify-content:center;margin-top:1px;
}
.modal-bullet span:last-child{font-size:15px;line-height:1.45;color:#2E343A;font-weight:500}

body.no-scroll{overflow:hidden}

/* ==========================================================================
   TABLET  — até 1023px
   ========================================================================== */
@media (max-width:1023px){
  :root{--pad:24px}

  .nav-desktop{display:none}
  .nav-toggle{display:flex}

  .hero{padding-top:110px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .lead{max-width:none}
  .hero-media img{height:340px}

  .about-grid{grid-template-columns:1fr;gap:44px;padding:40px}
  .about-media img{height:300px}
  .badge-years{right:16px;bottom:-18px;padding:15px 18px}

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

  .projects-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:220px}
  .project-tall{grid-row:span 2}

  .cta-band{padding:44px}
  .cta-band .btn{width:100%}

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

/* ==========================================================================
   MOBILE  — até 639px
   ========================================================================== */
@media (max-width:639px){
  :root{--pad:18px}

  .hero{padding:96px var(--pad) 52px}
  h1{font-size:clamp(30px,8.5vw,40px);letter-spacing:-.5px}
  .lead{font-size:16px;margin-top:18px}
  .hero-actions{margin-top:26px;gap:10px}
  .hero-actions .btn{width:100%}
  .hero-media img{height:230px;border-radius:16px}

  .about{padding:16px var(--pad) 64px}
  .about-grid{padding:28px 22px 34px;gap:38px;border-radius:20px}
  .about-media img{height:220px}
  .badge-years{right:12px;bottom:-16px;padding:12px 16px}
  .badge-years-num{font-size:28px}
  .about-copy p{font-size:15px}

  .services{padding:36px var(--pad) 62px}
  .section-head{margin-bottom:30px}
  .grid-3{grid-template-columns:1fr;gap:14px}
  .service-card{padding:24px 22px}

  .projects{padding:56px var(--pad) 28px}
  .projects-head{margin-bottom:26px}
  .projects-note{max-width:none}
  .projects-grid{grid-template-columns:1fr;grid-auto-rows:210px;gap:12px}
  .project-tall{grid-row:span 1}

  .cta-section{padding:40px var(--pad)}
  .cta-band{padding:32px 24px;border-radius:20px;gap:26px}

  .testimonials{padding:28px var(--pad) 64px}
  .testimonial{padding:26px 22px}

  .contact{padding:56px var(--pad)}
  .form-card{padding:22px 18px;border-radius:18px}
  .form-grid{grid-template-columns:1fr}
  .span-2{grid-column:span 1}
  .tabs{margin-bottom:22px}
  .tab{font-size:13.5px;padding:11px 6px}
  .contact-value{font-size:16px}
  .contact-value-sm{font-size:14px}

  .site-footer{padding:44px var(--pad) 26px}
  .footer-cols{gap:34px;width:100%}
  .footer-bottom{flex-direction:column;gap:6px}

  .wa-float{bottom:18px;right:18px;width:52px;height:52px}

  .modal-overlay{padding:14px}
  .modal-head{padding:26px 22px}
  .modal-head h3{font-size:23px}
  .modal-body{padding:24px 22px 26px}
}

/* ---------- acessibilidade: respeita quem pediu menos animação ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .project:hover img{transform:none}
}