/* ===========================================================
   Antônio José F. de S. Bezerra — Engenheiro Civil
   Paleta tirada do próprio portfólio: laranja-tijolo + grafite + off-white
   =========================================================== */

:root{
  --bg:#12100e;
  --bg-2:#1a1714;
  --bg-3:#221e1a;
  --paper:#f7f5f2;
  --line:rgba(255,255,255,.10);
  --line-d:rgba(20,16,12,.12);
  --txt:#f4f1ec;
  --txt-2:#a89f94;
  --ink:#1c1815;
  --ink-2:#6b625a;
  --brand:#d1450f;
  --brand-2:#e86b2a;
  --brand-soft:rgba(209,69,15,.12);
  --wpp:#25d366;
  --r:14px;
  --wrap:1240px;
  --ease:cubic-bezier(.22,.68,0,1);
  --font:"Inter","Helvetica Neue",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{line-height:1.12;margin:0 0 .5em;letter-spacing:-.025em}
h2{font-size:clamp(1.85rem,4vw,2.85rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1.1em}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:24px}

.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:12px 18px;z-index:200}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

.eyebrow{
  font-size:.74rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  color:var(--brand);margin:0 0 .9em;
}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 24px;border-radius:8px;font-weight:650;font-size:.94rem;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),background .22s,box-shadow .22s,border-color .22s,color .22s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn--lg{padding:16px 30px;font-size:1rem}
.btn--sm{padding:9px 16px;font-size:.85rem}
.btn--solid{background:var(--brand);color:#fff;box-shadow:0 8px 22px -10px rgba(209,69,15,.8)}
.btn--solid:hover{background:var(--brand-2);box-shadow:0 14px 30px -10px rgba(209,69,15,.9)}
.btn--ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.25);backdrop-filter:blur(6px)}
.btn--ghost:hover{background:rgba(255,255,255,.16)}
.ico{width:18px;height:18px;fill:currentColor;flex:none}

/* ---------- navbar ---------- */
.nav{position:fixed;inset:0 0 auto;z-index:100;transition:background .3s,box-shadow .3s;border-bottom:1px solid transparent}
.nav.is-stuck{background:rgba(18,16,14,.92);backdrop-filter:blur(14px) saturate(1.3);border-bottom-color:var(--line)}
.nav__in{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:#fff}
.brand__ini{
  width:40px;height:40px;flex:none;border-radius:9px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:.95rem;letter-spacing:.02em;
}
.brand__txt{display:flex;flex-direction:column;line-height:1.25}
.brand__txt b{font-size:.98rem;font-weight:700;letter-spacing:-.01em}
.brand__txt i{font-style:normal;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--txt-2)}
.nav__links{display:flex;align-items:center;gap:28px}
.nav__links a{text-decoration:none;font-size:.92rem;font-weight:600;color:rgba(255,255,255,.72);transition:color .2s}
.nav__links a:hover{color:#fff}
.nav__links .btn{color:#fff}
.burger{display:none;background:none;border:0;padding:10px;cursor:pointer}
.burger span{display:block;width:24px;height:2px;background:#fff;border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.burger span+span{margin-top:6px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:min(94svh,820px);display:flex;align-items:flex-end;overflow:hidden;background:var(--bg)}
.hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero__veil{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(to top,var(--bg) 4%,rgba(18,16,14,.9) 32%,rgba(18,16,14,.5) 70%,rgba(18,16,14,.7)),
    linear-gradient(100deg,rgba(18,16,14,.75),transparent 60%);
}
.hero__in{position:relative;z-index:2;color:var(--txt);padding-block:150px 84px;max-width:900px}
.hero h1{font-size:clamp(2.3rem,6.4vw,4.4rem);font-weight:850;letter-spacing:-.035em;margin-bottom:.4em}
.hero h1 em{font-style:normal;color:var(--brand-2)}
.hero__sub{font-size:clamp(1rem,2vw,1.18rem);color:#ded7cd;max-width:44em}
.hero__cta{display:flex;flex-wrap:wrap;gap:13px;margin-top:6px}

/* ---------- faixa de números ---------- */
.stats{background:var(--brand);color:#fff}
.stats__in{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-block:30px;text-align:center}
.stats__in div{display:flex;flex-direction:column;gap:3px}
.stats__in b{font-size:2.1rem;font-weight:800;line-height:1;letter-spacing:-.03em}
.stats__in span{font-size:.75rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;opacity:.82;text-wrap:balance}

/* ---------- seções ---------- */
.sec{padding-block:clamp(66px,9vw,110px)}
.sec--alt{background:#efece7;border-block:1px solid var(--line-d)}
.sec__head{max-width:46rem;margin-bottom:48px}
.sec__lead{color:var(--ink-2);font-size:1.05rem;margin:0}
.sec__hint{color:var(--ink-2);font-size:.9rem;margin:14px 0 0;opacity:.8}
.grid2{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(34px,5vw,72px);align-items:center}

.about__media{position:relative}
.about__media img{border-radius:var(--r);aspect-ratio:4/5;object-fit:cover;box-shadow:0 30px 60px -30px rgba(28,24,21,.55)}
.about__tag{
  position:absolute;left:-16px;bottom:22px;background:#fff;border-radius:10px;padding:13px 20px;
  box-shadow:0 18px 40px -18px rgba(28,24,21,.5);border-left:3px solid var(--brand);
}
.about__tag b{display:block;font-size:.98rem}
.about__tag span{font-size:.76rem;color:var(--ink-2)}

.checks{list-style:none;padding:0;margin:0 0 28px;display:grid;gap:10px}
.checks li{position:relative;padding-left:30px;color:var(--ink-2)}
.checks li::before{
  content:"";position:absolute;left:0;top:.45em;width:18px;height:18px;border-radius:5px;background:var(--brand-soft);
}
.checks li::after{
  content:"";position:absolute;left:6px;top:.63em;width:5px;height:9px;
  border:2px solid var(--brand);border-top:0;border-left:0;transform:rotate(42deg);
}

/* ---------- áreas ---------- */
.areas{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.areas li{
  background:#fff;border:1px solid var(--line-d);border-radius:var(--r);padding:28px 26px;
  transition:transform .3s var(--ease),box-shadow .3s;
}
.areas li:hover{transform:translateY(-4px);box-shadow:0 20px 40px -24px rgba(28,24,21,.4)}
.areas__ico{display:block;margin-bottom:16px}
.areas__ico svg{
  width:34px;height:34px;fill:none;stroke:var(--brand);
  stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;
}
.areas li p{color:var(--ink-2);font-size:.94rem;margin:0}

/* ---------- filtros ---------- */
.filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:32px}
.filt{
  font:inherit;font-size:.87rem;font-weight:600;padding:9px 17px;border-radius:100px;cursor:pointer;
  background:transparent;color:var(--ink-2);border:1px solid var(--line-d);
  transition:background .2s,color .2s,border-color .2s;
}
.filt:hover{border-color:var(--brand);color:var(--brand)}
.filt.is-on{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- grid de obras ---------- */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid__empty{text-align:center;color:var(--ink-2);padding:40px 0}
.card{
  background:#fff;border:1px solid var(--line-d);border-radius:var(--r);overflow:hidden;
  display:flex;flex-direction:column;cursor:pointer;
  transition:transform .32s var(--ease),box-shadow .32s,border-color .32s;
}
.card:hover,.card:focus-visible{transform:translateY(-5px);box-shadow:0 26px 50px -28px rgba(28,24,21,.55);border-color:rgba(209,69,15,.4)}
.card.is-hidden{display:none}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-3)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.card:hover .card__media img{transform:scale(1.05)}
.card__media--empty{
  display:grid;place-items:center;
  background:linear-gradient(140deg,#2a2521,#17140f);
}
.card__media--empty svg{width:54px;height:54px;fill:none;stroke:rgba(232,107,42,.55);stroke-width:1.2;stroke-linecap:round;stroke-linejoin:round}
.card__badge{
  position:absolute;top:12px;left:12px;font-size:.68rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  padding:6px 11px;border-radius:100px;background:rgba(18,16,14,.82);color:#fff;backdrop-filter:blur(4px);
}
.card__badge--live{background:var(--brand);}
.card__badge--live::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:#fff;
  margin-right:6px;vertical-align:middle;animation:blink 1.8s ease-in-out infinite;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
.card__body{padding:22px 22px 26px;display:flex;flex-direction:column;flex:1}
.card__meta{
  font-size:.72rem;font-weight:650;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-2);
  margin:0 0 .6em;display:flex;flex-wrap:wrap;gap:6px;align-items:center;
}
.card__meta i{font-style:normal;opacity:.45}
.card__num{
  font-size:.82rem;font-weight:700;color:var(--brand);margin:-.2em 0 .8em;
  letter-spacing:.01em;
}
.card__desc{color:var(--ink-2);font-size:.9rem;margin:0}
/* obras enumeradas viram tópicos */
.card__list{list-style:none;margin:.2em 0 0;padding:0;display:grid;gap:8px}
.card__desc + .card__list{margin-top:.75em}
.card__list li{position:relative;padding-left:16px;color:var(--ink-2);font-size:.86rem;line-height:1.42}
.card__list li::before{content:"";position:absolute;left:0;top:.55em;width:5px;height:5px;border-radius:50%;background:var(--brand)}
.card__list--cols{grid-template-columns:1fr 1fr;gap:8px 20px}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;background:var(--bg);color:var(--txt);text-align:center}
.cta__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.cta__veil{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(18,16,14,.92),rgba(18,16,14,.8))}
.cta__in{position:relative;z-index:2;max-width:44rem;margin-inline:auto;padding-block:clamp(76px,10vw,124px)}
.cta__lead{color:#d8d0c6;font-size:1.06rem;margin-bottom:30px}
.cta__btns{display:flex;flex-wrap:wrap;gap:13px;justify-content:center}

/* ---------- rodapé ---------- */
.foot{background:var(--bg-2);color:var(--txt);padding-block:44px 38px}
.foot__in{display:grid;gap:24px;justify-items:center;text-align:center}
.foot__brand{display:flex;align-items:center;gap:12px}
.foot__brand p{margin:0;font-size:.9rem;color:var(--txt-2);text-align:left}
.foot__brand b{color:var(--txt)}
.foot__nav{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:center}
.foot__nav a{text-decoration:none;font-size:.9rem;font-weight:600;color:var(--txt-2)}
.foot__nav a:hover{color:var(--brand-2)}
.foot__cp{font-size:.78rem;color:var(--txt-2);opacity:.7;margin:0}

/* ---------- WhatsApp flutuante ---------- */
.wpp{
  position:fixed;right:18px;bottom:18px;z-index:90;width:56px;height:56px;border-radius:50%;
  background:var(--wpp);display:grid;place-items:center;box-shadow:0 10px 28px -8px rgba(37,211,102,.6);
  transition:transform .3s var(--ease);
}
.wpp:hover{transform:scale(1.08)}
.wpp svg{width:29px;height:29px;fill:#fff}

/* ---------- lightbox ---------- */
.lb{
  position:fixed;inset:0;z-index:150;background:rgba(10,8,6,.95);backdrop-filter:blur(8px);
  display:grid;place-items:center;padding:24px;opacity:0;transition:opacity .28s;
}
.lb[hidden]{display:none}
.lb.is-open{opacity:1}
.lb__box{margin:0;display:flex;flex-direction:column;align-items:center;gap:14px;max-width:min(100%,1180px)}
.lb__box img{max-height:76svh;width:auto;border-radius:10px;background:#000;box-shadow:0 40px 90px -30px #000}
.lb__box figcaption{
  color:#cfc7bd;font-size:.92rem;text-align:center;display:flex;gap:12px;align-items:center;justify-content:center;
}
.lb__box figcaption i{font-style:normal;font-size:.78rem;color:#8d8478;letter-spacing:.08em}
.lb__close{
  position:absolute;top:14px;right:16px;width:46px;height:46px;border-radius:50%;
  background:rgba(255,255,255,.1);border:1px solid var(--line);color:#fff;
  font-size:2rem;line-height:0;cursor:pointer;transition:background .2s;
}
.lb__close:hover{background:rgba(255,255,255,.22)}
.lb__nav{
  position:absolute;top:50%;translate:0 -50%;width:50px;height:50px;border-radius:50%;
  background:rgba(255,255,255,.08);border:1px solid var(--line);color:#fff;
  font-size:2rem;line-height:0;cursor:pointer;transition:background .2s;
}
.lb__nav:hover{background:rgba(255,255,255,.22)}
.lb__nav--prev{left:16px}
.lb__nav--next{right:16px}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .65s var(--ease),transform .65s var(--ease)}
.rv.is-in{opacity:1;transform:none}

/* ===========================================================
   RESPONSIVO
   =========================================================== */
@media (max-width:1040px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .areas{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:860px){
  .burger{display:block}
  .nav{background:rgba(18,16,14,.9);backdrop-filter:blur(12px)}
  .nav__links{
    position:fixed;inset:76px 0 auto;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(18,16,14,.98);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);
    padding:8px 24px 24px;clip-path:inset(0 0 100% 0);transition:clip-path .38s var(--ease);
  }
  .nav__links.is-open{clip-path:inset(0 0 0 0)}
  .nav__links a{padding:15px 0;border-bottom:1px solid var(--line);font-size:1.02rem;color:#fff}
  .nav__links .btn{justify-content:center;margin-top:16px;border-bottom:0}

  .grid2{grid-template-columns:1fr}
  .about__media{order:-1}
  .about__media img{aspect-ratio:4/3}
  .about__tag{left:auto;right:14px;bottom:-14px}
  .stats__in{grid-template-columns:1fr 1fr;gap:24px 12px}
}

@media (max-width:620px){
  body{font-size:16px}
  .hero__in{padding-block:126px 66px}
  .hero__cta .btn,.cta__btns .btn{flex:1 1 100%}
  .grid{grid-template-columns:1fr;gap:18px}
  .card__list--cols{grid-template-columns:1fr}
  .areas{grid-template-columns:1fr}
  .sec__head{margin-bottom:32px}
  .stats__in b{font-size:1.8rem}
  .filters{gap:7px}
  .filt{font-size:.82rem;padding:8px 14px}
  .lb{padding:12px}
  .lb__nav{width:42px;height:42px;font-size:1.6rem}
  .lb__nav--prev{left:6px}
  .lb__nav--next{right:6px}
  .about__tag{right:8px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .rv{opacity:1;transform:none}
}