/* ============================================================
   MF ENGENHARIA · LANDING "CONSTRUIR"
   Mesma linguagem do site institucional ("Engineered Editorial"):
   tokens, fontes e regras de cor copiados de mf-site/assets/styles.css.
   Se a paleta do site mudar, mudar aqui também.
   ============================================================ */
@font-face{font-family:'Archivo';src:url('fontes/archivo-var-latin.woff2') format('woff2-variations'),url('fontes/archivo-var-latin.woff2') format('woff2');font-weight:100 900;font-stretch:62% 125%;font-display:swap}
@font-face{font-family:'Chivo';src:url('fontes/chivo-var-latin.woff2') format('woff2-variations'),url('fontes/chivo-var-latin.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:'Instrument Serif';src:url('fontes/instrument-serif-latin.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Instrument Serif';src:url('fontes/instrument-serif-italic-latin.woff2') format('woff2');font-weight:400;font-style:italic;font-display:swap}

:root{
  --bg:#F4F1EA; --bg-2:#EDE9DF; --surface:#FFFFFF;
  --ink:#0F0E0C; --text:#14130F; --mute:#55524B; --faint:#6F6A62;
  --gold:#C79A33;        /* preenchimento: botão, barra, filete */
  --gold-ink:#7A5C1C;    /* dourado como TEXTO sobre papel (bronze) */
  --gold-32:rgba(199,154,51,.38);
  --line:rgba(20,19,15,.14); --line-soft:rgba(20,19,15,.07);
  --shadow:0 26px 60px -32px rgba(35,28,10,.38);
  --display:'Archivo',system-ui,sans-serif;
  --body:'Chivo',system-ui,sans-serif;
  --serif:'Instrument Serif',Georgia,serif;
  --maxw:1240px;
  --pad:clamp(16px,5vw,72px);
  --ease:cubic-bezier(.16,1,.3,1);
}
/* Blocos escuros: redeclaram os tokens e os filhos herdam (igual ao site). */
.dark,.hero,.foot{
  --surface:#1A1917; --text:#F2EFE7; --mute:#B9B4A9; --faint:#9A958B;
  --gold-ink:#D3A84C; --line:rgba(211,168,76,.24); --line-soft:rgba(242,239,231,.10);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:72px}
body{background:var(--bg);color:var(--text);font-family:var(--body);font-size:clamp(16px,1.02vw,17px);line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--gold-ink);outline-offset:3px}
[tabindex="-1"]:focus{outline:none}
::selection{background:var(--gold);color:var(--ink)}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.skip{position:fixed;top:0;left:50%;transform:translate(-50%,-120%);z-index:100;background:var(--gold);color:var(--ink);padding:14px 26px;font-size:.82rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;transition:transform .25s var(--ease)}
.skip:focus{transform:translate(-50%,0)}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad);position:relative}
h1,h2,h3{font-family:var(--display);font-variation-settings:'wdth' 112;line-height:1}
em.acc{font-family:var(--serif);font-style:italic;font-weight:400;text-transform:none;color:var(--gold-ink);letter-spacing:-.005em}
.eyebrow,.s-num{font-family:var(--body);font-size:.72rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-ink);display:inline-flex;align-items:center;gap:.7em}
.eyebrow::before,.s-num::before{content:"";width:26px;height:1px;background:currentColor}
.h-xl{font-weight:800;font-size:clamp(2rem,4.6vw,3.9rem);letter-spacing:-.02em;text-transform:uppercase;margin:18px 0 22px;max-width:18ch}
.h-xl em.acc{font-size:1.08em}
.h-lg{font-weight:800;font-size:clamp(1.6rem,3vw,2.5rem);letter-spacing:-.015em;text-transform:uppercase;margin:16px 0 8px}
.lede{color:var(--mute);font-size:1.06rem;font-weight:300;max-width:52ch;margin-bottom:18px}
.p-num{font-family:var(--display);font-weight:800;font-size:.85rem;color:var(--gold-ink);letter-spacing:.06em}

/* ---- botões ---- */
.btn{font-family:var(--body);font-size:.82rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:16px 26px;display:inline-flex;align-items:center;justify-content:center;gap:12px;transition:.4s var(--ease);cursor:pointer;border:1px solid transparent;background:none;color:var(--text)}
.btn-primary{background:var(--gold);color:var(--ink);border-color:var(--gold)}
.btn-primary:hover{background:transparent;color:var(--gold-ink);border-color:var(--gold-ink);transform:translateY(-3px)}
.btn-ghost{border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--gold-ink);color:var(--gold-ink)}
.btn .arrow{transition:transform .4s var(--ease)}
.btn:hover .arrow{transform:translateX(5px)}
.btn-full{width:100%}

/* ---- nav ---- */
.nav{position:fixed;inset:0 0 auto;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px var(--pad);border-bottom:1px solid transparent;transition:background .4s var(--ease),border-color .4s,padding .4s var(--ease);
  --text:#F2EFE7;--faint:#A8A399;--gold-ink:#D3A84C}
.nav.scrolled{background:rgba(15,14,12,.9);backdrop-filter:blur(14px);border-bottom-color:rgba(211,168,76,.22);padding-block:10px}
.brand{display:flex;align-items:center;gap:14px;font-family:var(--display);font-weight:800;text-transform:uppercase;color:var(--text);font-size:.95rem;line-height:1.1}
.brand small{display:block;font-family:var(--body);font-size:.56rem;font-weight:500;letter-spacing:.22em;color:var(--faint);margin-top:4px}
.mono-mark{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--gold-ink);color:var(--gold-ink);font-weight:800;font-size:1rem;position:relative;flex:none}
.mono-mark::after{content:"";position:absolute;inset:0;border:1px solid var(--gold-32);transform:translate(4px,4px)}
.nav-cta{font-size:.76rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;background:var(--gold);color:var(--ink);padding:11px 18px;border:1px solid var(--gold);white-space:nowrap;transition:.35s var(--ease)}
.nav-cta:hover{background:transparent;color:#D3A84C;border-color:#D3A84C}

/* ---- hero ---- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;padding:120px 0 28px;background:#0F0E0C;color:var(--text);overflow:hidden}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:50% 45%;filter:grayscale(.35) brightness(.62) contrast(1.06)}
/* véu: pesado embaixo (texto) e no topo (nav), leve no meio */
.hero-bg::after{content:"";position:absolute;inset:0;background:
  linear-gradient(to right,rgba(10,10,10,.5) 0%,rgba(10,10,10,.12) 60%,transparent 80%),
  linear-gradient(to top,rgba(10,10,10,.92) 0%,rgba(10,10,10,.74) 30%,rgba(10,10,10,.3) 58%,rgba(10,10,10,.75) 100%)}
.hero-in{position:relative;z-index:1;width:100%}
.hero h1{font-weight:900;font-variation-settings:'wdth' 108;font-size:clamp(2.5rem,7.4vw,6.4rem);line-height:.92;letter-spacing:-.025em;text-transform:uppercase;max-width:13ch;margin:18px 0 26px}
.hero h1 em.acc{font-size:1.04em;line-height:.9}
.hero-lede{max-width:50ch;color:var(--mute);font-size:1.08rem;font-weight:300;margin-bottom:30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-facts{list-style:none;display:flex;flex-wrap:wrap;gap:10px 34px;margin-top:40px;padding-top:22px;border-top:1px solid var(--line);font-size:.86rem;color:var(--mute)}
.hero-facts b{color:var(--text);font-weight:600}
.hero-cap{position:relative;z-index:1;margin-top:18px;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);width:100%}

/* ---- seções ---- */
.sec{padding-block:clamp(72px,10vw,140px)}
.sec.dark{background:#12110F;color:var(--text)}
.sec.tight{padding-block:0 clamp(24px,4vw,48px)}
.split .h-xl{font-size:clamp(2rem,4vw,3.4rem)}
.sec-head{margin-bottom:clamp(32px,5vw,56px)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(36px,6vw,88px);align-items:center}
.split-photo{grid-template-columns:.8fr 1.2fr}

/* S/01 */
.pains{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.pain{background:var(--bg);padding:34px 30px}
.pain h3{font-size:1.25rem;font-weight:800;text-transform:uppercase;margin:14px 0 10px;letter-spacing:-.005em}
.pain p{color:var(--mute)}
.bridge{margin-top:40px;max-width:60ch;font-family:var(--serif);font-size:clamp(1.35rem,2.2vw,1.8rem);line-height:1.35}

/* S/02 */
.checks{list-style:none;display:grid;gap:16px;margin-top:10px}
.checks li{padding-left:30px;position:relative;color:var(--mute)}
.checks li::before{content:"";position:absolute;left:0;top:.55em;width:14px;height:8px;border-left:2px solid var(--gold);border-bottom:2px solid var(--gold);transform:rotate(-45deg)}
.checks b{color:var(--text);font-weight:600}
.ledger{background:var(--surface);border:1px solid var(--line);padding:22px;box-shadow:0 30px 70px -30px rgba(0,0,0,.7)}
.ledger-top{display:flex;justify-content:space-between;gap:12px;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);padding-bottom:14px;border-bottom:1px solid var(--line)}
.ledger-tag{border:1px solid var(--gold-ink);color:var(--gold-ink);padding:2px 8px}
.ledger table{width:100%;border-collapse:collapse;font-size:.9rem}
.ledger th,.ledger td{text-align:left;padding:12px 6px;border-bottom:1px solid var(--line-soft);font-weight:400;vertical-align:middle}
.ledger thead th{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.ledger tbody th{font-weight:600;color:var(--text)}
.ledger td{color:var(--mute);white-space:nowrap}
.ledger td.now{color:var(--gold-ink)}
.bar{display:inline-block;width:clamp(50px,9vw,110px);height:6px;background:var(--line-soft);margin-right:10px;vertical-align:middle;position:relative}
.bar::after{content:"";position:absolute;inset:0 auto 0 0;width:var(--v);background:var(--gold)}
.ledger figcaption{margin-top:14px;font-size:.78rem;color:var(--faint)}

/* S/03 e S/06 */
.photo-tall{position:relative}
.photo-tall img{width:100%;aspect-ratio:4/5;object-fit:cover}
.photo-tall figcaption{margin-top:10px;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.pillars{display:grid;grid-template-columns:1fr 1fr;gap:26px 34px;margin-top:8px}
.pillar{display:flex;gap:16px;padding-top:18px;border-top:1px solid var(--line)}
.pillar h3{font-size:1.02rem;font-weight:800;text-transform:uppercase;margin-bottom:8px;line-height:1.15}
.pillar p{color:var(--mute);font-size:.96rem}

/* progresso da obra */
.steps-photo{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.steps-photo img{width:100%;aspect-ratio:3/2;object-fit:cover}
.steps-photo span{display:block;margin-top:12px;font-family:var(--display);font-weight:800;text-transform:uppercase;font-size:.92rem}
.steps-photo b{color:var(--gold-ink);margin-right:8px}

/* S/04 */
.process{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-bottom:36px}
.process li{background:var(--bg);padding:30px 28px}
.process h3{font-size:1.1rem;font-weight:800;text-transform:uppercase;margin:12px 0 8px;line-height:1.15}
.process p{color:var(--mute);font-size:.96rem}

/* S/05 */
.houses{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.house{background:var(--surface);border:1px solid var(--line);transition:.4s var(--ease)}
.house:hover{border-color:var(--gold);transform:translateY(-4px);box-shadow:var(--shadow)}
.house img{width:100%;aspect-ratio:3/2;object-fit:cover}
.house div{padding:18px 20px 22px}
.house h3{font-size:1.15rem;font-weight:800;text-transform:uppercase;margin:8px 0 6px}
.house p{font-size:.88rem;color:var(--faint)}
.h-cat{font-size:.68rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-ink)}
.h-cat.now::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--gold);margin-right:8px;vertical-align:1px}

/* S/07 */
.testi-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:16px;align-items:start}
.tcard{background:var(--surface);border:1px solid var(--line);padding:34px 30px;display:flex;flex-direction:column;gap:22px}
.stars{color:var(--gold-ink);letter-spacing:.22em;font-size:.85rem}
.tcard blockquote{font-family:var(--serif);font-size:1.28rem;line-height:1.45}
.who{display:flex;align-items:center;gap:14px}
.who .av{width:44px;height:44px;border-radius:50%;border:1px solid var(--gold-ink);display:grid;place-items:center;font-family:var(--display);font-weight:800;color:var(--gold-ink);flex:none}
.who b{display:block;font-family:var(--display);font-weight:700;font-size:.96rem;text-transform:uppercase}
.who b + span{font-size:.72rem;color:var(--faint);letter-spacing:.1em}

/* S/08 */
.faq{border-top:1px solid var(--line);max-width:880px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 44px 22px 0;position:relative;font-family:var(--display);font-weight:700;font-size:1.08rem;font-variation-settings:'wdth' 106}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:1.5rem;font-weight:400;color:var(--gold-ink);transition:transform .3s var(--ease)}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{color:var(--mute);padding:0 0 24px;max-width:68ch}

/* S/09 formulário */
.contact{background:radial-gradient(90% 70% at 85% 0%,rgba(211,168,76,.16),transparent 60%),#12110F}
.contact-meta{list-style:none;display:grid;gap:14px;margin-top:26px}
.contact-meta li{color:var(--mute);font-size:.95rem}
.contact-meta span{display:block;font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-ink);margin-bottom:2px}
.lead-form{background:#1A1917;border:1px solid var(--line);padding:clamp(22px,3vw,36px);display:grid;grid-template-columns:1fr 1fr;gap:18px 16px}
.field{grid-column:1/-1;border:0;min-width:0}
.field.half{grid-column:span 1}
.field label,.field legend{display:block;font-size:.74rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--text);margin-bottom:8px}
.field input[type=text],.field select{width:100%;font:inherit;font-size:16px;color:var(--text);background:#0F0E0C;border:1px solid rgba(242,239,231,.18);padding:13px 14px;border-radius:0;appearance:none}
.field select{background-image:linear-gradient(45deg,transparent 50%,#D3A84C 50%),linear-gradient(135deg,#D3A84C 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-right:36px}
.field input::placeholder{color:#8A857B}
.field input:focus,.field select:focus{outline:none;border-color:var(--gold)}
.field.bad input,.field.bad select,.field.bad .chips span{border-color:#E07B5F}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips label{margin:0;letter-spacing:0;text-transform:none;font-weight:400;font-size:.95rem;cursor:pointer}
.chips input{position:absolute;opacity:0;pointer-events:none}
.chips span{display:block;padding:10px 16px;border:1px solid rgba(242,239,231,.18);color:var(--mute);transition:.25s var(--ease)}
.chips input:checked + span{background:var(--gold);border-color:var(--gold);color:var(--ink);font-weight:600}
.chips input:focus-visible + span{outline:2px solid var(--gold);outline-offset:2px}
.form-err{grid-column:1/-1;color:#F0A08A;font-size:.9rem}
.lead-form .btn{grid-column:1/-1;margin-top:4px}
.form-note{grid-column:1/-1;font-size:.78rem;color:var(--faint)}

/* rodapé */
.foot{background:#0F0E0C;color:var(--text);padding:48px 0 96px;border-top:1px solid var(--line)}
.foot-in{display:flex;flex-wrap:wrap;gap:24px 48px;align-items:center;justify-content:space-between}
.foot ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px 28px;font-size:.88rem;color:var(--mute)}
.foot a:hover{color:var(--gold-ink)}
.foot p{width:100%;font-size:.76rem;color:var(--faint);padding-top:20px;border-top:1px solid var(--line-soft)}

/* aviso de cookies */
.cookie{position:fixed;left:16px;bottom:16px;z-index:40;max-width:420px;background:#1A1917;color:#F2EFE7;border:1px solid rgba(211,168,76,.3);padding:16px 18px;display:flex;gap:14px;align-items:center;font-size:.82rem;line-height:1.5;box-shadow:0 12px 40px rgba(0,0,0,.35);
  --text:#F2EFE7;--line:rgba(211,168,76,.3);--gold-ink:#D3A84C}
.cookie a{text-decoration:underline;color:#D3A84C}
.cookie .btn{padding:10px 16px;flex:none}
.cookie[hidden]{display:none}

/* WhatsApp flutuante (igual ao site) */
.wa-float{position:fixed;right:clamp(14px,3vw,26px);bottom:calc(clamp(14px,3vw,26px) + env(safe-area-inset-bottom,0px));z-index:30;width:58px;height:58px;display:grid;place-items:center;border-radius:50%;background:#25D366;color:#fff;box-shadow:0 0 0 1px rgba(15,14,12,.22),0 6px 18px rgba(15,14,12,.26);transition:transform .3s var(--ease)}
.wa-float svg{width:31px;height:31px;fill:currentColor}
.wa-float:hover{transform:translateY(-3px)}

/* ---- responsivo ---- */
@media(max-width:960px){
  .split,.split-photo{grid-template-columns:1fr}
  .split-photo .photo-tall{max-width:440px}
  .process,.houses{grid-template-columns:1fr 1fr}
  .testi-grid{grid-template-columns:1fr}
}
@media(max-width:720px){
  .nav .brand > span:last-child{display:none}
  .nav-cta{font-size:.7rem;padding:10px 14px}
  .pains,.process,.houses,.steps-photo,.pillars{grid-template-columns:1fr}
  .steps-photo{gap:24px}
  .hero{padding-top:100px}
  .hero-actions .btn{width:100%}
  .lead-form{grid-template-columns:1fr}
  .field.half{grid-column:1/-1}
  .ledger{padding:16px 12px}
  .ledger th,.ledger td{padding:10px 4px;font-size:.84rem}
  .ledger td:last-child,.ledger thead th:last-child{display:none}
  .cookie{left:12px;right:84px;max-width:none;flex-direction:column;align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}