/* NNS Construções — folha de estilo. Base compartilhada com o site da
   Marcenaria Ferreira (identidade irmã): mesma tipografia e estrutura,
   paleta própria — concreto/grafite com acento âmbar. */

:root{
  --ink:#14181C;
  --steel-900:#1E252B;
  --steel-700:#33414B;
  --steel-500:#5A6D7A;
  --steel-300:#9AAAB5;
  --amber:#E08A1E;
  --amber-dark:#C0700F;
  --cream:#F4F6F7;
  --sand:#E4E8EA;
  --line:#D2D9DD;
  --muted:#5D6B75;
  --white:#FFFFFF;

  --ff-display:"Fraunces",Georgia,"Times New Roman",serif;
  --ff-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;

  --wrap:1180px;
  --gutter:clamp(20px,5vw,48px);
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 18px 50px -24px rgba(20,24,28,.45);
  --shadow-sm:0 6px 22px -12px rgba(20,24,28,.35);
  --t:.28s cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{
  margin:0;
  font-family:var(--ff-body);
  font-size:17px;
  line-height:1.65;
  color:var(--ink);
  background:var(--cream);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:600;line-height:1.14;letter-spacing:-.015em;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- Botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:.95em 1.7em;border-radius:100px;
  font-weight:600;font-size:.95rem;letter-spacing:.01em;
  text-decoration:none;transition:var(--t);white-space:nowrap;
}
.btn svg{width:1.15em;height:1.15em;flex:none}
.btn--primary{background:var(--amber);color:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:var(--amber-dark);transform:translateY(-2px)}
.btn--ghost{border:1.5px solid var(--line);color:var(--steel-700);background:transparent}
.btn--ghost:hover{border-color:var(--steel-500);background:rgba(90,109,122,.07)}
.btn--light{background:var(--white);color:var(--steel-900)}
.btn--light:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:6px}

/* ---------- Cabeçalho ---------- */
.header{
  position:sticky;top:0;z-index:60;
  background:rgba(244,246,247,.86);
  backdrop-filter:saturate(1.6) blur(14px);
  border-bottom:1px solid transparent;
  transition:var(--t);
}
.header.is-stuck{border-bottom-color:var(--line);box-shadow:0 4px 24px -18px rgba(20,24,28,.6)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none;font-family:var(--ff-display);font-weight:600;font-size:1.16rem;letter-spacing:-.02em;color:var(--steel-900)}
.logo__mark{width:36px;height:36px;flex:none;border-radius:9px;background:linear-gradient(145deg,var(--steel-500),var(--steel-700));display:grid;place-items:center;color:var(--steel-300)}
.logo__mark svg{width:20px;height:20px}
.logo span small{display:block;font-family:var(--ff-body);font-size:.63rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:1px}

.nav{display:flex;align-items:center;gap:30px}
.nav a{text-decoration:none;font-size:.93rem;font-weight:500;color:var(--steel-700);position:relative;padding:4px 0;transition:var(--t)}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;background:var(--amber);transition:right var(--t)}
.nav a:hover{color:var(--steel-900)}
.nav a:hover::after{right:0}
.header__cta{display:flex;align-items:center;gap:14px}

.burger{display:none;width:44px;height:44px;border-radius:10px;place-items:center;color:var(--steel-900)}
.burger svg{width:24px;height:24px}

@media (max-width:940px){
  .nav{
    position:fixed;inset:76px 0 auto;flex-direction:column;align-items:stretch;gap:0;
    background:var(--cream);border-bottom:1px solid var(--line);
    padding:8px var(--gutter) 26px;
    transform:translateY(-130%);transition:transform var(--t);box-shadow:var(--shadow);
  }
  .nav.is-open{transform:translateY(0)}
  .nav a{padding:15px 0;border-bottom:1px solid var(--line);font-size:1.02rem}
  .nav a::after{display:none}
  .burger{display:grid}
  .header__cta .btn{display:none}
}

/* ---------- Hero ---------- */
.hero{position:relative;padding:clamp(32px,4.5vw,56px) 0 clamp(44px,6vw,72px);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(1100px 520px at 84% -12%,rgba(154,170,181,.30),transparent 62%),
    radial-gradient(760px 420px at 6% 8%,rgba(90,109,122,.14),transparent 60%);
}
.hero__grid{display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(36px,5vw,68px);align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.74rem;font-weight:600;letter-spacing:.17em;text-transform:uppercase;color:var(--steel-500);
  background:rgba(255,255,255,.8);border:1px solid var(--line);
  padding:.5em 1.05em;border-radius:100px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
.hero h1{font-size:clamp(2.1rem,4.4vw,3.3rem);margin-bottom:16px}
.hero h1 em{font-style:italic;color:var(--steel-500)}
.hero__lead{font-size:clamp(1rem,1.6vw,1.1rem);color:var(--muted);max-width:52ch;margin-bottom:26px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.hero__stats{display:flex;flex-wrap:wrap;gap:clamp(20px,3.4vw,38px);padding-top:22px;border-top:1px solid var(--line)}
.hero__stats div strong{display:block;font-family:var(--ff-display);font-size:1.6rem;line-height:1;color:var(--steel-900)}
.hero__stats div span{font-size:.83rem;color:var(--muted)}

.hero__media{position:relative}
.hero__media .ph{aspect-ratio:5/6;border-radius:var(--radius-lg)}
.hero__media img{
  width:100%;height:auto;aspect-ratio:5/6;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow);
}
.hero__badge{
  position:absolute;left:-26px;bottom:34px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:17px 21px;box-shadow:var(--shadow);display:flex;align-items:center;gap:13px;max-width:245px;
}
.hero__badge svg{width:30px;height:30px;flex:none;color:var(--amber)}
.hero__badge b{display:block;font-size:.93rem;color:var(--steel-900)}
.hero__badge small{font-size:.79rem;color:var(--muted);line-height:1.4;display:block}

@media (max-width:900px){
  .hero__grid{grid-template-columns:1fr}
  .hero__media{order:-1;max-width:460px}
  .hero__media .ph{aspect-ratio:16/11}
  .hero__badge{left:auto;right:14px;bottom:-20px;max-width:210px}
}

/* ---------- Placeholder de imagem ---------- */
.ph{
  position:relative;width:100%;
  background:
    repeating-linear-gradient(101deg,rgba(90,109,122,.11) 0 3px,transparent 3px 13px),
    linear-gradient(150deg,var(--sand),#DED0BC);
  border:1px dashed var(--steel-300);border-radius:var(--radius);
  display:grid;place-items:center;text-align:center;padding:22px;overflow:hidden;
}
.ph__label{font-size:.76rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--steel-500);opacity:.85;line-height:1.6}
.ph__label svg{width:28px;height:28px;margin:0 auto 9px;display:block;opacity:.65}

/* ---------- Seções ---------- */
.section{padding:clamp(44px,5.5vw,74px) 0}
.section--sand{background:var(--sand)}
.section--dark{background:var(--steel-900);color:var(--cream)}
.section--dark h2,.section--dark h3{color:var(--white)}
.section--dark .section__lead{color:rgba(244,246,247,.72)}

.section__head{max-width:720px;margin-bottom:clamp(28px,3.4vw,42px)}
.section__head--center{margin-inline:auto;text-align:center}
.section__head h2{font-size:clamp(1.95rem,4.2vw,2.85rem);margin-bottom:16px}
.section__lead{color:var(--muted);font-size:1.04rem}
.tag{font-size:.74rem;font-weight:600;letter-spacing:.17em;text-transform:uppercase;color:var(--amber);display:block;margin-bottom:13px}

/* ---------- Serviços ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:22px}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;transition:var(--t);position:relative;overflow:hidden;
}
.card::after{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--amber);transition:width var(--t)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--steel-300)}
.card:hover::after{width:100%}
.card__icon{width:50px;height:50px;border-radius:13px;background:var(--sand);display:grid;place-items:center;color:var(--steel-500);margin-bottom:20px}
.card__icon svg{width:25px;height:25px}
.card h3{font-size:1.26rem;margin-bottom:11px}
.card p{color:var(--muted);font-size:.96rem}

/* ---------- Processo ---------- */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:26px}
.step{position:relative;padding-top:56px}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:0;left:0;
  font-family:var(--ff-display);font-size:2.1rem;font-weight:600;color:var(--amber);line-height:1;
}
.step::after{content:"";position:absolute;top:16px;left:58px;right:-26px;height:1px;background:rgba(154,170,181,.4)}
.step:last-child::after{display:none}
.step h3{font-size:1.14rem;margin-bottom:9px}
.step p{font-size:.94rem;color:rgba(244,246,247,.7)}
@media (max-width:860px){.step::after{display:none}}

/* ---------- Galeria ---------- */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(265px,1fr));gap:20px}
.gallery .ph{aspect-ratio:4/3}
.gallery figure{margin:0}
.gallery img{
  width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius);box-shadow:var(--shadow-sm);
  transition:transform var(--t),box-shadow var(--t);
}
.gallery figure:hover img{transform:translateY(-4px);box-shadow:var(--shadow)}
.gallery figcaption{margin-top:12px;font-size:.9rem;font-weight:500;color:var(--steel-700)}
.gallery figcaption span{display:block;font-size:.83rem;font-weight:400;color:var(--muted)}

/* ---------- Diferenciais ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,5vw,68px);align-items:center}
@media (max-width:880px){.split{grid-template-columns:1fr}}
.checks li{display:flex;gap:15px;padding:15px 0;border-bottom:1px solid var(--line)}
.checks li:last-child{border-bottom:0}
.checks svg{width:22px;height:22px;flex:none;color:var(--amber);margin-top:2px}
.checks b{display:block;font-size:1.03rem;color:var(--steel-900);margin-bottom:3px}
.checks span{font-size:.93rem;color:var(--muted)}

/* ---------- Depoimentos ---------- */
.quotes{display:grid;grid-template-columns:repeat(auto-fit,minmax(285px,1fr));gap:22px}
.quote{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;display:flex;flex-direction:column;gap:18px}
.quote__stars{display:flex;gap:3px;color:var(--amber)}
.quote__stars svg{width:17px;height:17px}
.quote p{font-size:.99rem;color:var(--steel-700);font-style:italic;flex:1}
.quote footer{display:flex;align-items:center;gap:12px;font-size:.9rem}
.quote__av{width:42px;height:42px;border-radius:50%;background:var(--sand);display:grid;place-items:center;font-weight:600;color:var(--steel-500);flex:none}
.quote footer b{display:block;color:var(--steel-900)}
.quote footer span{color:var(--muted);font-size:.84rem}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin-inline:auto}
.faq details{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);margin-bottom:13px;overflow:hidden;transition:var(--t)}
.faq details[open]{border-color:var(--steel-300);box-shadow:var(--shadow-sm)}
.faq summary{
  list-style:none;cursor:pointer;padding:21px 26px;font-weight:600;font-size:1.03rem;color:var(--steel-900);
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";width:11px;height:11px;flex:none;border-right:2px solid var(--amber);border-bottom:2px solid var(--amber);transform:rotate(45deg) translateY(-3px);transition:var(--t)}
.faq details[open] summary::after{transform:rotate(-135deg) translateY(-3px)}
.faq .faq__body{padding:0 26px 23px;color:var(--muted);font-size:.97rem}

/* ---------- Contato ---------- */
.contact{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(34px,5vw,62px)}
@media (max-width:880px){.contact{grid-template-columns:1fr}}
.contact__list li{display:flex;gap:15px;padding:17px 0;border-bottom:1px solid rgba(244,246,247,.16)}
.contact__list li:last-child{border-bottom:0}
.contact__list svg{width:22px;height:22px;flex:none;color:var(--steel-300);margin-top:3px}
.contact__list b{display:block;font-size:.77rem;letter-spacing:.14em;text-transform:uppercase;color:var(--steel-300);margin-bottom:4px}
.contact__list a,.contact__list span{color:var(--cream);text-decoration:none;font-size:1.02rem}
.contact__list a:hover{text-decoration:underline}

.form{background:var(--white);border-radius:var(--radius-lg);padding:clamp(26px,4vw,38px);box-shadow:var(--shadow)}
.form h3{font-size:1.4rem;color:var(--steel-900);margin-bottom:6px}
.form>p{font-size:.93rem;color:var(--muted);margin-bottom:24px}
.field{margin-bottom:17px}
.field label{display:block;font-size:.83rem;font-weight:600;color:var(--steel-700);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:10px;
  font:inherit;font-size:.96rem;color:var(--ink);background:var(--cream);transition:var(--t);
}
.field textarea{min-height:112px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--amber);background:var(--white);box-shadow:0 0 0 4px rgba(224,138,30,.13)}
.form .btn{width:100%;margin-top:6px}
.form__note{font-size:.81rem;color:var(--muted);text-align:center;margin-top:14px}

/* ---------- Rodapé ---------- */
.footer{background:var(--ink);color:rgba(244,246,247,.62);padding:clamp(52px,7vw,76px) 0 30px;font-size:.93rem}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:clamp(30px,5vw,56px);margin-bottom:44px}
@media (max-width:760px){.footer__grid{grid-template-columns:1fr;gap:34px}}
.footer .logo{color:var(--cream);margin-bottom:16px}
.footer h4{font-size:.78rem;letter-spacing:.15em;text-transform:uppercase;color:var(--steel-300);margin-bottom:17px;font-family:var(--ff-body);font-weight:600}
.footer li{margin-bottom:11px}
.footer a{text-decoration:none;transition:var(--t)}
.footer a:hover{color:var(--cream)}
.footer__bottom{border-top:1px solid rgba(244,246,247,.12);padding-top:26px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:.85rem}
.social{display:flex;gap:11px;margin-top:20px}
.social a{width:39px;height:39px;border-radius:10px;background:rgba(244,246,247,.08);display:grid;place-items:center;color:var(--steel-300);transition:var(--t)}
.social a:hover{background:var(--amber);color:#fff}
.social svg{width:18px;height:18px}

/* ---------- WhatsApp flutuante ---------- */
.wa{
  position:fixed;right:20px;bottom:20px;z-index:70;
  width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;
  display:grid;place-items:center;box-shadow:0 12px 30px -8px rgba(37,211,102,.6);
  transition:var(--t);text-decoration:none;
}
.wa:hover{transform:scale(1.07)}
.wa svg{width:30px;height:30px}

/* ---------- Animação de entrada ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.is-visible{opacity:1;transform:none}