/* Vão Arquitetura — site Plus. Grid suíço: papel frio, tinta, verde-musgo como acento; Archivo + IBM Plex Mono.
   Projetos ilustrados com plantas em traço (SVG inline), sem foto de banco. */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--papel:#f4f3ef;--papel-2:#eceae4;--concreto:#d9d6cf;--tinta:#15171a;--tinta-2:#3e4248;--cinza:#7a7f86;--linha:rgba(21,23,26,.14);--linha-2:rgba(21,23,26,.3);--acento:#5c8a7a;--acento-2:#3f6a5c;
  --sans:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;--wrap:1240px;--pad:clamp(18px,4vw,56px);--ease:cubic-bezier(.22,.61,.36,1)}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--papel);color:var(--tinta);line-height:1.55;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit;text-decoration:none}ul,ol{list-style:none}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}svg{display:block}
:focus-visible{outline:2px solid var(--acento);outline-offset:3px}::selection{background:var(--acento);color:#fff}
.wrap{width:min(var(--wrap),100% - 2*var(--pad));margin-inline:auto}
.skip{position:absolute;left:12px;top:-60px;background:var(--tinta);color:#fff;padding:10px 16px;z-index:999}.skip:focus{top:12px}
h1,h2,h3{font-weight:500;line-height:1.05;letter-spacing:-.025em}
h1{font-size:clamp(2.4rem,6vw,5rem);max-width:14ch}h2{font-size:clamp(1.7rem,3.4vw,2.7rem);max-width:22ch}h3{font-size:1.2rem;letter-spacing:-.01em}
.lead{font-size:clamp(1rem,1.2vw,1.12rem);color:var(--tinta-2);max-width:58ch}.lead+.lead{margin-top:14px}
.mono{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cinza)}.mono.small{text-transform:none;letter-spacing:0;font-size:.72rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;font-weight:500;font-size:.9rem;border:1.5px solid var(--tinta);border-radius:0;transition:background .18s,color .18s,border-color .18s,transform .15s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-ink{background:var(--tinta);color:#fff}.btn-ink:hover{background:var(--tinta-2)}
.btn-acento{background:var(--acento);border-color:var(--acento);color:#fff}.btn-acento:hover{background:var(--acento-2);border-color:var(--acento-2)}
.btn-linha{background:transparent}.btn-linha:hover{background:var(--tinta);color:#fff}
.btn-g{padding:15px 26px;font-size:.98rem}.btn-bloco{width:100%}
/* header */
.hdr{position:sticky;top:0;z-index:100;background:rgba(244,243,239,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--linha)}
.hdr-in{height:72px;display:flex;align-items:center;gap:20px}
.marca{display:flex;align-items:center;gap:10px}.marca svg{width:32px;height:32px}
.marca span{font-weight:600;font-size:1.3rem;letter-spacing:-.03em;line-height:1;display:flex;flex-direction:column}.marca small{font-family:var(--mono);font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;color:var(--cinza);margin-top:3px;font-weight:400}
.nav{display:flex;gap:2px;margin-left:auto}.nav a{padding:9px 12px;font-size:.86rem;font-weight:500;color:var(--tinta-2);border-bottom:2px solid transparent}.nav a:hover{color:var(--tinta);border-color:var(--acento)}
.hdr-cta{padding:10px 16px;font-size:.84rem}
.menu-btn{display:none;width:44px;height:44px;border:1.5px solid var(--linha-2);place-items:center}.menu-btn span{display:block;width:20px;height:2px;background:var(--tinta);margin:3px 0}
/* hero */
.hero{padding:clamp(48px,8vw,110px) 0 0;position:relative;overflow:hidden;border-bottom:1px solid var(--linha)}
.hero .mono{margin-bottom:22px;display:block}.hero h1{margin-bottom:34px}
.hero-g{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,5vw,72px);align-items:end}
.hero-acoes{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.indice{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--linha-2);margin-top:clamp(36px,5vw,64px)}
.indice li{padding:22px 18px 22px 0;border-right:1px solid var(--linha)}.indice li:last-child{border-right:0}.indice li+li{padding-left:18px}
.indice b{display:block;font-size:clamp(1.8rem,3vw,2.6rem);font-weight:500;letter-spacing:-.03em;line-height:1}.indice span{font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cinza);display:block;margin-top:8px}
.hero-desenho{color:var(--tinta);opacity:.35;margin-top:30px}.hero-desenho svg{width:100%;height:clamp(90px,14vw,220px)}
/* seções */
.sec{padding:clamp(56px,8vw,120px) 0}.sec-escura{background:var(--tinta);color:var(--papel)}.sec-tinta{background:var(--papel-2)}
.cab{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}.cab .mono{display:block;margin-bottom:16px}.cab h2{margin-bottom:16px}
.sec-escura .mono{color:rgba(244,243,239,.55)}.sec-escura .lead{color:rgba(244,243,239,.75)}
/* projetos */
.filtros{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:26px}
.chip{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;padding:8px 14px;border:1px solid var(--linha-2);transition:all .15s}.chip.on,.chip:hover{background:var(--tinta);color:#fff;border-color:var(--tinta)}
.projetos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--linha);border:1px solid var(--linha)}
.proj{background:var(--papel);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);min-width:0;transition:background .2s}.proj:hover{background:#fff}
.proj-planta{background:var(--papel-2);padding:22px;color:var(--tinta);display:grid;place-items:center;min-width:0}
.proj-planta svg{width:100%;height:auto}.proj-planta text{font-family:var(--mono);font-size:9px;letter-spacing:.08em;fill:var(--tinta)}.proj-planta .t-nota{fill:var(--acento-2);font-style:italic;text-transform:lowercase}
.proj:hover .proj-planta{color:var(--acento-2)}
.proj-b{padding:22px;display:flex;flex-direction:column;gap:10px}.proj-b .mono{font-size:.68rem}.proj-b p{font-size:.9rem;color:var(--tinta-2);line-height:1.5}
.proj[hidden]{display:none}
/* etapas */
.etapas{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:rgba(244,243,239,.14);border:1px solid rgba(244,243,239,.14)}
.etapas li{background:var(--tinta);padding:26px 20px 22px;display:flex;flex-direction:column;gap:10px;min-height:280px}
.etapas .mono{color:var(--acento);font-size:.8rem}.etapas h3{font-size:1.1rem}.etapas p{font-size:.86rem;color:rgba(244,243,239,.72);flex:1;line-height:1.5}.etapas em{font-family:var(--mono);font-style:normal;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:rgba(244,243,239,.5);border-top:1px solid rgba(244,243,239,.14);padding-top:10px}
/* serviços */
.serv-g{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,80px);align-items:start}.serv-g .mono{display:block;margin-bottom:16px}.serv-g h2{margin-bottom:14px}.serv-g .lead{margin-bottom:24px}
.servicos{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--linha);border:1px solid var(--linha)}
.servicos li{background:var(--papel);padding:24px;display:flex;flex-direction:column;gap:10px;min-height:210px}.servicos p{font-size:.9rem;color:var(--tinta-2);flex:1;line-height:1.5}.servicos .mono{color:var(--acento-2);text-transform:none;letter-spacing:.02em}
/* escritório */
.esc-g{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,5vw,80px);align-items:center}
.esc-foto{border:1px solid var(--linha-2)}.esc-foto svg{width:100%;height:auto}
.esc-g .mono{display:block;margin-bottom:16px}.esc-g h2{margin-bottom:18px}
.equipe{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;margin-top:26px;border-top:1px solid var(--linha-2);padding-top:18px}
.equipe b{display:block;font-weight:500}.equipe span{font-family:var(--mono);font-size:.7rem;letter-spacing:.04em;text-transform:uppercase;color:var(--cinza)}
/* depoimentos */
.depos{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--linha);border:1px solid var(--linha)}
.depos blockquote{background:var(--papel);padding:28px;display:flex;flex-direction:column;gap:18px}.depos p{font-size:1.1rem;line-height:1.4;letter-spacing:-.01em;flex:1}.depos footer{font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cinza)}
/* faq */
.faq-g{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,5vw,80px);align-items:start}.faq-g .mono{display:block;margin-bottom:16px}.faq-g .lead{margin-top:12px}
.faq{border-top:1px solid var(--linha-2)}.faq details{border-bottom:1px solid var(--linha-2)}
.faq summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:500;display:flex;justify-content:space-between;gap:16px;align-items:center;font-size:1rem}.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);font-size:1.3rem;color:var(--acento-2);transition:transform .2s}.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 18px;color:var(--tinta-2);font-size:.92rem;max-width:60ch}
/* contato */
.cont-g{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,80px);align-items:start}.cont-g .mono{display:block;margin-bottom:16px}.cont-g h2{margin-bottom:14px}
.cont-l{display:grid;gap:12px;margin-top:26px;border-top:1px solid var(--linha-2);padding-top:18px}.cont-l li{display:grid;grid-template-columns:110px 1fr;gap:12px;align-items:baseline}.cont-l a{text-decoration:underline;text-underline-offset:.25em}
.form{display:grid;gap:14px;background:#fff;border:1px solid var(--linha-2);padding:clamp(20px,3vw,32px)}
.form label{display:grid;gap:6px;font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cinza)}
.form input,.form select,.form textarea{font:inherit;font-family:var(--sans);font-size:.95rem;padding:11px 12px;border:1px solid var(--linha-2);background:var(--papel);color:var(--tinta);width:100%;border-radius:0}.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--tinta);background:#fff}.form textarea{resize:vertical}
/* rodapé */
.ftr{background:var(--tinta);color:rgba(244,243,239,.75);padding:36px 0}
.ftr-g{display:grid;grid-template-columns:1.2fr 1fr auto;gap:24px;align-items:center}.ftr .marca{color:#fff;margin-bottom:10px}.ftr .marca small{color:rgba(244,243,239,.5)}.ftr p{font-size:.78rem}
.ftr nav{display:flex;gap:16px;flex-wrap:wrap;font-size:.86rem}.ftr nav a:hover{color:#fff}.ftr .mono{color:rgba(244,243,239,.5)}.ftr .mono a{color:#fff}
/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}.reveal.on{opacity:1;transform:none}
/* responsivo */
@media(max-width:1000px){.etapas{grid-template-columns:repeat(2,1fr)}.etapas li{min-height:0}.indice{grid-template-columns:1fr 1fr}.indice li:nth-child(2){border-right:0}.indice li:nth-child(n+3){border-top:1px solid var(--linha);padding-left:0}.indice li:nth-child(4){padding-left:18px;border-left:1px solid var(--linha)}}
@media(max-width:900px){
  .hdr-in{height:62px}.nav,.hdr-cta{display:none}.menu-btn{display:grid;margin-left:auto}
  body.menu-open .nav{display:flex;position:absolute;left:0;right:0;top:100%;height:calc(100vh - 62px);flex-direction:column;background:var(--papel);padding:10px var(--pad) 30px;overflow:auto;z-index:99;border-top:1px solid var(--linha);margin:0}
  body.menu-open .nav a{padding:16px 0;border-bottom:1px solid var(--linha);font-size:1.05rem}body.menu-open{overflow:hidden}
  .hero-g,.serv-g,.esc-g,.faq-g,.cont-g{grid-template-columns:1fr}.hero-acoes{justify-content:flex-start}
  .projetos{grid-template-columns:1fr}.depos{grid-template-columns:1fr}.servicos li{min-height:0}
}
@media(max-width:600px){
  .proj{grid-template-columns:1fr}.proj-planta{aspect-ratio:16/10}.etapas{grid-template-columns:1fr}.servicos{grid-template-columns:1fr}.equipe{grid-template-columns:1fr}
  .indice{grid-template-columns:1fr 1fr}.cont-l li{grid-template-columns:1fr;gap:2px}.ftr-g{grid-template-columns:1fr}.hero-acoes .btn{flex:1 1 100%}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.reveal{opacity:1;transform:none}}