/* KR Engenharia – estilos do site */
/* Layout: padrão KR — faixa azul-marinho com logotipo; prancha técnica com grade; serviços como índice de folhas com a norma de referência. */
:root{
  --paper:#F5F6F8; --sheet:#FFFFFF; --ink:#13294B; --text:#2A3447; --muted:#56607A; --line:#D5DAE3;
  --grid:rgba(19,41,75,.06); --blue:#13294B; --signal:#F5B21A; --signal-ink:#13294B; --chip:#E7EBF1;
  --band:#13294B; --band-text:#FFFFFF; --band-muted:#B7C1D3; --feat:#13294B;
  --display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --body:"Barlow","Segoe UI",Arial,sans-serif;
  --mono:"IBM Plex Mono",Consolas,"Courier New",monospace;
  --max:1180px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0D1626; --sheet:#142036; --ink:#EEF1F6; --text:#D3D9E4; --muted:#9AA5B9; --line:#26344F;
    --grid:rgba(238,241,246,.05); --blue:#9DB8E0; --signal:#F5B21A; --signal-ink:#13294B; --chip:#1B2A44;
    --band:#0A1220; --band-text:#FFFFFF; --band-muted:#9AA5B9; --feat:#1C3159;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#0D1626; --sheet:#142036; --ink:#EEF1F6; --text:#D3D9E4; --muted:#9AA5B9; --line:#26344F;
  --grid:rgba(238,241,246,.05); --blue:#9DB8E0; --signal:#F5B21A; --signal-ink:#13294B; --chip:#1B2A44;
  --band:#0A1220; --band-text:#FFFFFF; --band-muted:#9AA5B9; --feat:#1C3159;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{background:var(--paper);color:var(--text);font-family:var(--body);font-size:17px;line-height:1.6;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:24px 24px}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--band)}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--display);line-height:1.04;text-wrap:balance;margin:0;color:var(--ink)}
h2{font-size:clamp(2rem,4vw,2.9rem);font-weight:700;text-transform:uppercase;letter-spacing:.01em}
h3{font-size:1.45rem;font-weight:700}
p{margin:0}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.lead{color:var(--muted);max-width:62ch;font-size:1.08rem}
:focus-visible{outline:3px solid var(--signal);outline-offset:3px;border-radius:2px}

/* header */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--band);color:var(--band-text)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--band-text)}
.brand img{height:93px;width:auto;display:block}
.brand b{font-family:var(--display);font-weight:800;font-size:2rem;letter-spacing:.08em;line-height:1;display:block}
.brand span{font-family:var(--mono);font-size:.66rem;color:var(--band-muted);display:block;letter-spacing:.08em;margin-top:3px}
nav ul{display:flex;gap:18px;list-style:none;margin:0;padding:0}
nav a,header .btn{white-space:nowrap}
nav a{text-decoration:none;font-weight:600;font-size:.95rem;color:var(--band-muted)}
nav a:hover{color:var(--band-text)}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--body);font-weight:700;font-size:.98rem;text-decoration:none;
  padding:11px 18px;border-radius:3px;border:2px solid var(--signal);background:var(--signal);color:var(--signal-ink);cursor:pointer}
.btn:hover{filter:brightness(1.06)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
header .btn{padding:9px 14px;font-size:.92rem}
@media (max-width:1180px){nav{display:none}}
@media (max-width:560px){.brand img{height:66px}.brand b{font-size:1.25rem}.brand span{display:none}.brand{gap:10px}header .btn{padding:8px 10px;font-size:.85rem}}

/* hero */
.hero{padding-block:56px 64px}
.hero-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:40px;align-items:end}
.hero-grid>*{min-width:0}
.hero h1{font-size:clamp(2.6rem,6.2vw,4.9rem);font-weight:800;text-transform:uppercase;margin-block:14px 18px}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,var(--signal) 62%);padding:0 4px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
/* carimbo */
.carimbo{background:var(--sheet);border:2px solid var(--ink);font-family:var(--mono);font-size:.78rem}
.carimbo .row{display:grid;grid-template-columns:118px 1fr;border-bottom:1px solid var(--ink)}
.carimbo .row:last-child{border-bottom:0}
.carimbo .k{padding:8px 10px;border-right:1px solid var(--ink);color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:.68rem;display:flex;align-items:center}
.carimbo .v{padding:8px 10px;font-weight:600;overflow-wrap:anywhere;color:var(--ink)}
.carimbo .title{padding:12px 10px;border-bottom:2px solid var(--ink);font-family:var(--display);font-weight:800;font-size:1.35rem;letter-spacing:.06em;background:var(--band);color:var(--band-text);display:flex;justify-content:space-between;align-items:center;gap:8px}
.carimbo .title small{font-family:var(--mono);font-weight:400;font-size:.66rem;color:var(--band-muted);letter-spacing:.08em}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}.hero{padding-block:36px 44px}}

/* services */
section{padding-block:64px}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:28px}
.sec-head>div{display:grid;gap:10px}
.services{display:grid;grid-template-columns:repeat(4,1fr);border-top:3px solid var(--signal);border-left:1px solid var(--line)}
.svc{background:var(--sheet);padding:22px 22px 24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-rows:auto auto 1fr auto;gap:10px;min-width:0}
.svc .ref{font-family:var(--mono);font-size:.7rem;color:var(--muted);letter-spacing:.04em;display:flex;justify-content:space-between;gap:8px}
.svc .ref b{color:var(--ink);font-weight:600}
.svc p{color:var(--muted);font-size:.97rem}
.svc ul{margin:0;padding-left:18px;font-size:.92rem;color:var(--ink)}
.svc.feat{background:var(--feat);color:#fff}
.svc.feat h3{color:#fff}
.svc.feat .ref b{background:var(--signal);color:var(--signal-ink);padding:0 6px}
.svc.feat p,.svc.feat .ref{color:rgba(255,255,255,.82)}
.svc.feat .ref b{color:#fff}
.svc.feat ul{color:#fff}
@media (max-width:1100px){.services{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.services{grid-template-columns:1fr}}
.note{margin-top:18px;font-size:.9rem;color:var(--muted);display:flex;gap:10px;align-items:flex-start}
.note .tag{font-family:var(--mono);font-size:.7rem;border:1px solid var(--muted);padding:2px 6px;white-space:nowrap}

/* clients */
.band{background:var(--sheet);border-block:1px solid var(--line)}
.clients{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.client{padding:20px 20px 22px 0;border-bottom:1px solid var(--line);display:grid;gap:6px;min-width:0}
.client:not(:nth-child(3n+1)){padding-left:20px;border-left:1px solid var(--line)}
.client p{color:var(--muted);font-size:.95rem}
@media (max-width:860px){.clients{grid-template-columns:1fr}.client:not(:nth-child(3n+1)){padding-left:0;border-left:0}}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{border-top:3px solid var(--signal);padding-top:14px;display:grid;gap:8px;min-width:0;align-content:start}
.step h3{min-height:1.2em}
.step::before{counter-increment:s;content:"Etapa " counter(s);font-family:var(--mono);font-size:.72rem;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.step p{color:var(--muted);font-size:.95rem}
@media (max-width:860px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* standards + faq */
.two{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.two>*{min-width:0}
@media (max-width:860px){.two{grid-template-columns:1fr;gap:32px}}
.std{list-style:none;margin:18px 0 0;padding:0;border-top:1px solid var(--line)}
.std li{display:grid;grid-template-columns:150px 1fr;gap:14px;padding:12px 0;border-bottom:1px solid var(--line);font-size:.96rem}
.std code{font-family:var(--mono);font-size:.82rem;color:var(--ink);font-weight:600}
@media (max-width:480px){.std li{grid-template-columns:1fr;gap:2px}}
details{border-bottom:1px solid var(--line);padding:14px 0}
details:first-of-type{border-top:1px solid var(--line);margin-top:18px}
summary{cursor:pointer;font-weight:600;color:var(--ink);font-size:1.05rem;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--mono);color:var(--ink);font-size:1.1rem}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin-top:8px;font-size:.97rem}

/* contact */
.contact{background:var(--band);color:var(--band-text)}
.contact h2{color:var(--band-text)}
.contact .eyebrow{color:var(--signal)}
.contact .lead{color:inherit;opacity:.78}
.cgrid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;margin-top:26px}
.cgrid>*{min-width:0}
@media (max-width:860px){.cgrid{grid-template-columns:1fr}}
.info{display:grid;gap:16px;align-content:start}
.info .item{border-top:1px solid rgba(160,170,165,.35);padding-top:12px;display:grid;gap:4px}
.info .k{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;opacity:.7}
.info .v{font-size:1.15rem;font-weight:700;display:flex;flex-wrap:wrap;gap:10px;align-items:center;user-select:all}
.copy{font-family:var(--mono);font-size:.7rem;background:transparent;color:inherit;border:1px solid currentColor;padding:3px 8px;border-radius:2px;cursor:pointer;opacity:.8;user-select:none}
form{background:var(--sheet);color:var(--text);padding:24px;border-radius:3px;display:grid;gap:14px}
label{font-weight:600;font-size:.9rem;display:grid;gap:6px;color:var(--ink)}
input,select,textarea{font:inherit;font-size:1rem;padding:10px 12px;border:1px solid var(--line);border-radius:3px;background:var(--paper);color:var(--ink);width:100%}
textarea{min-height:96px;resize:vertical}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:520px){.frow{grid-template-columns:1fr}}
.out{display:none;gap:10px;border-top:1px dashed var(--line);padding-top:14px}
.out.show{display:grid}
.out pre{white-space:pre-wrap;font-family:var(--mono);font-size:.82rem;background:var(--paper);padding:12px;border-radius:3px;margin:0;max-height:220px;overflow:auto}
.out .hint{font-size:.85rem;color:var(--muted)}
footer{background:var(--band);font-size:.86rem;color:var(--band-muted)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-block:22px}
.mono{font-family:var(--mono);font-size:.78rem}
.dtabs{display:flex;flex-wrap:wrap;gap:0;border-bottom:2px solid var(--ink);margin-bottom:22px}
.dtabs button{font:inherit;font-weight:600;font-size:.95rem;padding:10px 16px;border:0;background:transparent;color:var(--muted);cursor:pointer;border-bottom:4px solid transparent;margin-bottom:-2px}
.dtabs button[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--signal)}
.dgrid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start}
.dgrid>*{min-width:0}
@media (max-width:900px){.dgrid{grid-template-columns:1fr}}
#docform{border:1px solid var(--line)}
#docform fieldset{border:0;padding:0;margin:0;display:grid;gap:12px}
#docform legend{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
#docform .g2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
#docform .g3{display:grid;grid-template-columns:2fr 1fr 1fr;gap:12px}
@media (max-width:520px){#docform .g2,#docform .g3{grid-template-columns:1fr}}
#docform .chk{display:flex;gap:10px;align-items:flex-start;font-weight:500}
#docform .chk input{width:20px;height:20px;flex:none;margin-top:2px;accent-color:var(--ink)}
.dside{position:sticky;top:calc(env(safe-area-inset-top,0px) + 120px);background:var(--paper);border:1px solid var(--line);padding:18px;display:grid;gap:12px}
.dside pre{white-space:pre-wrap;font-family:var(--mono);font-size:.8rem;line-height:1.55;background:var(--sheet);color:var(--text);border:1px solid var(--line);padding:14px;margin:0;max-height:440px;overflow:auto}
.dactions{display:flex;flex-wrap:wrap;gap:10px}
.dnote{font-size:.84rem;color:var(--muted)}
.dlist{list-style:none;margin:0;padding:0;display:grid;gap:0;border-top:1px solid var(--line)}
.dlist li{padding:10px 0;border-bottom:1px solid var(--line);display:grid;gap:2px}
.dlist b{color:var(--ink)}
.dlist span{color:var(--muted);font-size:.92rem}
@media (max-width:900px){.dside{position:static}}
@media (max-width:560px){.hero h1{font-size:2.15rem}}
@media (max-width:440px){header .btn{display:none}}
/*svcpick*/
.svcpick{border:2px solid var(--signal);border-left-width:8px;background:var(--paper);padding:12px 14px;border-radius:3px;display:grid;gap:4px}
.svcpick[hidden]{display:none}
.svcpick .k{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.svcpick h4{margin:0;font-family:var(--display);font-size:1.35rem;font-weight:700;color:var(--ink);line-height:1.1}
.svcpick .ref{font-family:var(--mono);font-size:.72rem;color:var(--ink)}
.svcpick p{font-size:.9rem;color:var(--muted)}
.svcpick a{font-size:.85rem;font-weight:700;color:var(--ink)}
.svc.chosen{outline:4px solid var(--signal);outline-offset:-4px;position:relative;z-index:1;background:color-mix(in srgb,var(--signal) 14%,var(--sheet))}
.svc.feat.chosen{background:var(--feat)}
.svc.chosen::after{content:"✓ SELECIONADO";position:absolute;top:0;right:0;background:var(--signal);color:var(--signal-ink);font-family:var(--mono);font-size:.66rem;font-weight:600;letter-spacing:.1em;padding:4px 8px}
.svc.chosen{padding-top:36px}
.svc.chosen .pick{color:var(--ink);text-decoration:none;background:var(--signal);color:var(--signal-ink);padding:4px 10px;border-radius:2px}
#servico.has-pick{border:2px solid var(--signal);font-weight:700;color:var(--ink);background:color-mix(in srgb,var(--signal) 12%,var(--paper))}
.ddmenu a.cur{background:color-mix(in srgb,var(--signal) 22%,var(--sheet));color:var(--ink);font-weight:700}
.ddmenu a.cur::before{content:"✓ "}
.svc.flash{animation:flash 1.6s ease-out}
@keyframes flash{0%{box-shadow:inset 0 0 0 4px var(--signal)}100%{box-shadow:inset 0 0 0 0 transparent}}
.svc .pick{justify-self:start;font:inherit;font-size:.85rem;font-weight:700;background:none;border:0;padding:0;color:inherit;text-decoration:underline;cursor:pointer;margin-top:4px}
.h1sub{display:block;font-size:.42em;font-weight:700;letter-spacing:.02em;margin-top:.35em;color:var(--muted);text-transform:none}
nav ul{align-items:center}
.dd{position:relative}
.ddbtn{font:inherit;font-weight:600;font-size:.95rem;color:var(--band-muted);background:none;border:0;padding:0;cursor:pointer;white-space:nowrap}
.ddbtn:hover,.dd:focus-within .ddbtn{color:var(--band-text)}
.ddmenu{position:absolute;top:calc(100% + 14px);left:-14px;display:none!important;flex-direction:column;gap:0!important;min-width:290px;background:var(--sheet);border:1px solid var(--line);border-top:3px solid var(--signal);box-shadow:0 18px 40px rgba(19,41,75,.18);padding:6px 0!important;z-index:40}
.ddmenu::before{content:"";position:absolute;left:0;right:0;top:-17px;height:14px}
.dd:hover .ddmenu,.dd.open .ddmenu{display:flex!important}
.ddmenu{align-items:stretch!important;max-height:calc(100vh - 140px);overflow-y:auto}
.ddmenu li{margin:0;text-align:left}
.ddmenu a{display:block;text-align:left;padding:8px 16px;color:var(--text);font-weight:500;font-size:.93rem;white-space:nowrap}
.ddmenu a:hover,.ddmenu a:focus-visible{background:var(--paper);color:var(--ink)}
.ddmenu .ddall{border-top:1px solid var(--line);margin-top:4px;padding-top:4px}
.ddall a{font-weight:700;color:var(--ink)}
.svc{scroll-margin-top:140px}
@media (max-width:1180px){nav{display:block!important}nav > ul > li:not(.dd){display:none}.ddmenu{left:auto;right:-60px}}
@media (max-width:560px){.ddbtn{font-size:.85rem}.ddmenu{position:fixed;left:max(16px,env(safe-area-inset-left,0px));right:max(16px,env(safe-area-inset-right,0px));top:calc(env(safe-area-inset-top,0px) + 92px);min-width:0}}