/* FYB – Soluções para Edifícios · folha de estilos única · sem framework */
:root{
  --navy:#16385a; --navy-dk:#0f2a44; --ink:#1b2530; --muted:#4d5866; --paper:#f5f6f8; --white:#fff;
  --line:#d8dde4; --accent:#f2800d; --accent-dk:#c96500;
  --font:"Montserrat",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --max:1120px; --gap:clamp(20px,4vw,40px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:1.0625rem;line-height:1.65;color:var(--ink);background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy);text-underline-offset:.2em}
a:hover{color:var(--accent-dk)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
h1,h2,h3,h4{font-weight:700;line-height:1.18;letter-spacing:-.015em;color:var(--navy-dk);margin:0 0 .6em}
h1{font-size:clamp(2rem,5.2vw,3.4rem);font-weight:800;letter-spacing:-.025em}
h2{font-size:clamp(1.5rem,3.2vw,2.1rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
ul,ol{padding-left:1.2em;margin:0 0 1em}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:var(--navy-dk);color:#fff;padding:10px 16px;z-index:100}
.skip:focus{left:0}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* buttons */
.btn{display:inline-block;font:700 .95rem/1 var(--font);padding:.95em 1.5em;border:2px solid var(--accent);background:var(--accent);color:var(--navy-dk);text-decoration:none;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.btn:hover{background:#ff9227;border-color:#ff9227;color:var(--navy-dk)}
.btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.75)}
.btn.ghost:hover{background:#fff;color:var(--navy-dk);border-color:#fff}
.btn.outline{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn.outline:hover{background:var(--navy);color:#fff}
.btn.sm{padding:.7em 1.1em;font-size:.85rem}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--white);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;margin-right:auto;text-decoration:none}
.brand img{width:auto;height:34px}
.menu-btn{display:inline-flex;align-items:center;gap:8px;background:none;border:1px solid var(--line);padding:.55em .8em;font:600 .85rem var(--font);color:var(--navy-dk);cursor:pointer}
.menu-btn i{display:block;width:18px;height:2px;background:currentColor;box-shadow:0 -5px 0 currentColor,0 5px 0 currentColor}
.primary{display:none;position:absolute;left:0;right:0;top:100%;background:var(--white);border-bottom:1px solid var(--line);padding:8px 20px 20px}
.primary.open{display:block}
.primary a{display:block;padding:.8em 0;font-weight:600;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--paper)}
.primary a[aria-current="page"]{color:var(--accent-dk)}
.primary .btn{margin-top:14px;text-align:center;border-bottom:2px solid var(--accent)}
.lang{display:flex;font-size:.8rem;font-weight:700}
.lang a,.lang span{padding:.45em .7em;border:1px solid var(--line);text-decoration:none;color:var(--muted)}
.lang span{background:var(--navy);border-color:var(--navy);color:#fff}
.lang a+span,.lang span+a{margin-left:-1px}
@media(min-width:1100px){
  .menu-btn{display:none}
  .primary{display:flex;position:static;align-items:center;gap:26px;padding:0;border:0;background:none}
  .primary a{padding:.4em 0;border:0;font-size:.92rem}
  .primary a:hover{color:var(--accent-dk)}
  .primary .btn{margin:0 0 0 6px;border:2px solid var(--accent);padding:.75em 1.15em;font-size:.85rem}
  .brand img{height:38px}
}

/* hero */
.hero{padding:0;position:relative;background:var(--navy-dk);color:#fff;overflow:hidden}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,42,68,.94) 0%,rgba(15,42,68,.82) 45%,rgba(15,42,68,.45) 100%)}
.hero .wrap{position:relative;z-index:1;padding-top:clamp(64px,11vw,132px);padding-bottom:clamp(64px,11vw,132px)}
.hero h1{color:#fff;max-width:17ch}
.hero .lead{font-size:clamp(1.05rem,2vw,1.3rem);max-width:56ch;color:#e6ecf2;margin:0 0 1.2em}
.hero .where{font-size:.95rem;color:#c8d3de;max-width:60ch;margin:0 0 2em}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px}
.page-head{background:var(--paper);border-bottom:1px solid var(--line)}
.page-head .wrap{padding-top:clamp(28px,5vw,56px);padding-bottom:clamp(28px,5vw,56px)}
.page-head h1{max-width:22ch;margin-bottom:.4em}
.page-head .lead{font-size:1.15rem;color:var(--muted);max-width:68ch;margin:0}
.crumbs{font-size:.85rem;color:var(--muted);margin:0 0 18px;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"/";margin-right:6px;color:#9aa5b1}
.crumbs a{color:var(--muted)}

/* sections */
section{padding:clamp(44px,7vw,84px) 0}
section.alt{background:var(--paper)}
.sec-head{max-width:64ch;margin-bottom:clamp(24px,4vw,40px)}
.sec-head p{color:var(--muted);margin:0}

/* lifecycle (the 360º model) */
.cycle{list-style:none;margin:0;padding:0;display:grid;gap:0;grid-template-columns:1fr}
.cycle li{position:relative;border-left:3px solid var(--line);padding:0 0 26px 22px}
.cycle li:last-child{padding-bottom:0}
.cycle li::before{content:"";position:absolute;left:-9px;top:4px;width:15px;height:15px;background:var(--white);border:3px solid var(--navy)}
.cycle .stage{display:block;font-size:.8rem;font-weight:700;color:var(--muted);letter-spacing:.02em;margin-bottom:2px}
.cycle a.name{display:block;font-size:1.2rem;font-weight:700;color:var(--navy-dk);text-decoration:none;margin-bottom:6px}
.cycle a.name:hover{color:var(--accent-dk)}
.cycle p{margin:0;color:var(--muted);font-size:.95rem}
.cycle li.on{border-left-color:var(--accent)}
.cycle li.on::before{background:var(--accent);border-color:var(--accent)}
@media(min-width:860px){
  .cycle{grid-template-columns:repeat(3,1fr);gap:28px}
  .cycle li{border-left:0;border-top:3px solid var(--line);padding:22px 0 0}
  .cycle li::before{left:0;top:-10px}
  .cycle li.on{border-top-color:var(--accent)}
}
.cycle-band{padding:clamp(36px,5vw,60px) 0;background:var(--white);border-bottom:1px solid var(--line)}
.cycle-band.tight{padding:24px 0}
.cycle-band.tight .cycle p{display:none}
.cycle-band.tight .cycle li{padding-bottom:16px}

/* values */
.values{display:grid;gap:22px;grid-template-columns:1fr}
.values div{border-top:3px solid var(--navy);padding-top:14px}
.values h3{margin-bottom:.3em}
.values p{margin:0;color:var(--muted);font-size:.97rem}
@media(min-width:720px){.values{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.values.four{grid-template-columns:repeat(4,1fr)}.values.three{grid-template-columns:repeat(3,1fr)}}

/* projects */
.projects{display:grid;gap:28px;grid-template-columns:1fr}
.project a.pic{display:block;overflow:hidden;background:var(--paper);aspect-ratio:4/3}
.project a.pic img{width:100%;height:100%;object-fit:cover}
.project h3{margin:14px 0 4px;font-size:1.1rem}
.project h3 a{color:var(--navy-dk);text-decoration:none}
.project h3 a:hover{color:var(--accent-dk)}
.project p{margin:0;color:var(--muted);font-size:.93rem}
@media(min-width:720px){.projects.three{grid-template-columns:repeat(3,1fr)}.projects.two{grid-template-columns:repeat(2,1fr)}}

/* portfolio page */
.pf{padding:clamp(36px,6vw,64px) 0;border-bottom:1px solid var(--line)}
.pf:last-of-type{border-bottom:0}
.pf-grid{display:grid;gap:28px;grid-template-columns:1fr}
.pf h2{margin-bottom:.35em}
.pf dl{margin:22px 0 0;display:grid;grid-template-columns:auto 1fr;gap:8px 18px;font-size:.95rem}
.pf dt{font-weight:700;color:var(--navy-dk)}
.pf dd{margin:0;color:var(--muted)}
.gallery{display:grid;gap:10px;grid-template-columns:repeat(2,1fr)}
.gallery figure{margin:0;background:var(--paper)}
.gallery figure.wide{grid-column:1/-1}
.gallery img{width:100%;height:100%;object-fit:cover}
.gallery figure.tall img{aspect-ratio:3/4}
.note{font-size:.85rem;color:var(--muted);margin-top:10px}
@media(min-width:960px){.pf-grid{grid-template-columns:5fr 7fr;gap:48px;align-items:start}.pf.rev .pf-grid{grid-template-columns:7fr 5fr}.pf.rev .pf-text{order:2}}

/* steps */
.steps{list-style:none;margin:0;padding:0;counter-reset:s;display:grid;gap:22px;grid-template-columns:1fr}
.steps li{counter-increment:s;border-top:3px solid var(--navy);padding-top:14px}
.steps li::before{content:counter(s);display:block;font-weight:800;font-size:1.6rem;color:var(--accent-dk);line-height:1;margin-bottom:8px}
.steps h3{font-size:1.05rem;margin-bottom:.3em}
.steps p{margin:0;color:var(--muted);font-size:.95rem}
@media(min-width:720px){.steps.four{grid-template-columns:repeat(2,1fr)}.steps.five{grid-template-columns:repeat(2,1fr)}.steps.three{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1000px){.steps.four{grid-template-columns:repeat(4,1fr)}.steps.five{grid-template-columns:repeat(5,1fr)}}

/* two-column content */
.split{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:900px){.split{grid-template-columns:7fr 5fr;gap:56px;align-items:start}}
.checks{list-style:none;padding:0;margin:0 0 1em}
.checks li{padding:.5em 0 .5em 1.6em;position:relative;border-bottom:1px solid var(--line)}
.checks li::before{content:"";position:absolute;left:0;top:1.05em;width:9px;height:9px;background:var(--accent)}
.item{padding:20px 0;border-top:1px solid var(--line)}
.item:last-child{border-bottom:1px solid var(--line)}
.item h3{margin-bottom:.3em}
.item p{margin:0;color:var(--muted)}
.aside{background:var(--paper);border-left:4px solid var(--accent);padding:22px 24px}
.aside h3{margin-top:0}
.aside ul{margin:0;padding-left:1.1em}
.aside li{margin-bottom:.4em}

/* posts list */
.posts{display:grid;gap:0;grid-template-columns:1fr;border-top:1px solid var(--line)}
.post-card{padding:26px 0;border-bottom:1px solid var(--line)}
.post-card .meta{font-size:.85rem;color:var(--muted);margin-bottom:6px}
.post-card h2,.post-card h3{font-size:1.25rem;margin-bottom:.4em}
.post-card h2 a,.post-card h3 a{color:var(--navy-dk);text-decoration:none}
.post-card h2 a:hover,.post-card h3 a:hover{color:var(--accent-dk)}
.post-card p{margin:0;color:var(--muted);font-size:.98rem;max-width:70ch}
@media(min-width:900px){.posts.three{grid-template-columns:repeat(3,1fr);gap:0 32px;border-top:0}.posts.three .post-card{border-top:3px solid var(--navy);border-bottom:0;padding-top:18px}}

/* article / prose */
.prose{max-width:720px}
.prose h2{margin-top:1.7em;font-size:clamp(1.35rem,2.6vw,1.75rem)}
.prose h3{margin-top:1.4em;font-size:1.15rem}
.prose li{margin-bottom:.4em}
.prose .highlight{background:var(--paper);border-left:4px solid var(--accent);padding:16px 20px;margin:1.4em 0;font-weight:500;color:var(--navy-dk)}
.article-head .meta{color:var(--muted);font-size:.9rem;margin:0 0 14px}
.article-head .excerpt{font-size:1.15rem;color:var(--muted);max-width:68ch;margin:0}
.article-head h1{font-size:clamp(1.8rem,4.2vw,2.75rem);max-width:26ch}
.next-box{margin-top:2.4em;border:1px solid var(--line);padding:22px 24px}
.next-box h2{margin:0 0 .5em;font-size:1.15rem}
.next-box ul{margin:0;padding-left:1.1em}

/* faq */
.faq details{border-top:1px solid var(--line);padding:0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;font-weight:700;color:var(--navy-dk);padding:18px 40px 18px 0;position:relative}
.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(--accent-dk)}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 0 18px;color:var(--muted);max-width:70ch}
.faq .ans p{margin:0}

/* contact */
.contact-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:900px){.contact-grid{grid-template-columns:5fr 7fr;gap:56px;align-items:start}}
.contact-list{list-style:none;margin:0;padding:0}
.contact-list li{padding:14px 0;border-top:1px solid var(--line)}
.contact-list li:last-child{border-bottom:1px solid var(--line)}
.contact-list strong{display:block;font-size:.85rem;color:var(--muted);font-weight:600}
.contact-list a,.contact-list span.v{font-size:1.1rem;font-weight:600}
.contact-list small{display:block;color:var(--muted);font-size:.82rem}
.form{background:var(--paper);padding:clamp(20px,4vw,34px);border-top:4px solid var(--navy)}
.form label{display:block;font-weight:600;font-size:.9rem;margin:0 0 6px;color:var(--navy-dk)}
.form .row{margin-bottom:16px}
.form input,.form select,.form textarea{width:100%;font:inherit;font-size:1rem;padding:.75em .8em;border:1px solid #b9c2cc;background:#fff;color:var(--ink);border-radius:0}
.form textarea{min-height:140px;resize:vertical}
.form .two{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:600px){.form .two{grid-template-columns:1fr 1fr}}
.form .err{color:#a4260a;font-weight:600;margin:0 0 12px}
.form .fine{font-size:.82rem;color:var(--muted);margin:14px 0 0}

/* cta band */
.cta-band{background:var(--navy);color:#fff;padding:clamp(40px,6vw,68px) 0}
.cta-band .wrap{display:grid;gap:22px;align-items:center}
.cta-band h2{color:#fff;margin:0 0 .3em}
.cta-band p{margin:0;color:#d6dfe8;max-width:56ch}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:12px}
@media(min-width:900px){.cta-band .wrap{grid-template-columns:1fr auto}}

/* footer */
.site-footer{background:var(--navy-dk);color:#c8d3de;font-size:.95rem}
.site-footer .wrap{padding-top:clamp(40px,6vw,64px);padding-bottom:26px}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
.site-footer img{height:36px;width:auto;margin-bottom:14px}
.site-footer h2{font-size:.9rem;color:#fff;margin:0 0 12px;letter-spacing:0}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px}
.site-footer a{color:#c8d3de;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer address{font-style:normal;line-height:1.7}
.foot-bottom{margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.15);display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:.85rem}
@media(min-width:800px){.foot-grid{grid-template-columns:1.5fr 1fr 1.2fr 1.3fr}}

.center{text-align:center}
.mt0{margin-top:0}.mb0{margin-bottom:0}
.mt-l{margin-top:28px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{.site-header,.cta-band,.site-footer,.menu-btn{display:none}}

/* ferramentas */
.aside .btn{display:block;text-align:center;margin-bottom:10px}
.aside .btn.outline{border-color:var(--navy)}
.kit-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:900px){.kit-grid{grid-template-columns:1fr 1fr;gap:48px}}
.kit{border-top:3px solid var(--navy);padding-top:18px}
.kit h3{font-size:1.35rem}
.kit>p{color:var(--muted)}
.dl{padding:18px 0;border-top:1px solid var(--line)}
.dl h4{margin:0 0 .25em;font-size:1.05rem}
.dl .fmeta{font-size:.82rem;color:var(--muted);margin:0 0 .5em;font-weight:600}
.dl p:not(.fmeta){color:var(--muted);font-size:.95rem}
.warn{border-left:4px solid var(--accent);background:var(--white);padding:18px 22px}