/* Apoio Academic — sistema visual
   Referencia: o documento academico. Papel, tinta, regua, marca de revisao.
   Serifada robusta nos titulos, sem serifa no corpo. Fio de 1px no lugar de sombra. */

:root{
  --paper:#FBFAF7;
  --paper-2:#F3F1EA;
  --ink:#1A1A18;
  --graphite:#55554E;
  --rule:#DCD9D0;
  --rule-strong:#B9B5A8;
  --seal:#14543F;      /* aprovacao */
  --seal-soft:#E6EFEA;
  --mark:#A8291F;      /* marca de revisao, uso minimo */
  --measure:68ch;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--seal);outline-offset:3px}

.wrap{width:min(1080px,calc(100% - 40px));margin-inline:auto}
.measure{max-width:var(--measure)}

/* ---------- tipografia ---------- */
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.012em;color:var(--ink)}
h1{font-size:clamp(2.1rem,1.3rem + 3.4vw,4rem);line-height:1.08;margin:0 0 .6em}
h2{font-size:clamp(1.55rem,1.15rem + 1.7vw,2.4rem);line-height:1.16;margin:0 0 .5em}
h3{font-size:1.18rem;line-height:1.3;margin:0 0 .4em}
p{margin:0 0 1.1em;max-width:var(--measure)}
.lede{font-size:1.2rem;line-height:1.55;color:var(--graphite)}
.small{font-size:.9rem;color:var(--graphite)}
.fine{font-size:.84rem;line-height:1.5;color:var(--graphite);max-width:62ch}
strong{font-weight:650}

/* numeracao: so onde existe sequencia real */
.seq{font-family:var(--serif);font-size:.95rem;color:var(--rule-strong);font-variant-numeric:tabular-nums}

/* ---------- cabecalho ---------- */
.site-head{border-bottom:1px solid var(--rule);background:var(--paper);position:sticky;top:0;z-index:40}
.site-head .wrap{display:flex;align-items:center;gap:28px;min-height:66px}
.brand{display:flex;align-items:baseline;gap:9px;font-family:var(--serif);font-size:1.22rem;font-weight:600;text-decoration:none;white-space:nowrap}
.brand .dot{width:7px;height:7px;background:var(--seal);border-radius:50%;transform:translateY(-2px)}
.site-nav{display:flex;gap:22px;margin-left:auto;font-size:.95rem}
.site-nav a{text-decoration:none;color:var(--graphite);padding-block:4px;border-bottom:1.5px solid transparent}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--seal)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--rule);
  border-radius:4px;padding:7px 11px;font:inherit;font-size:.9rem;cursor:pointer;color:var(--ink)}
@media(max-width:860px){
  .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);
    border-bottom:1px solid var(--rule);flex-direction:column;gap:0;padding:6px 20px 14px;margin:0}
  .site-nav.open{display:flex}
  .site-nav a{padding:11px 0;border-bottom:1px solid var(--rule)}
  .nav-toggle{display:block}
}

/* ---------- blocos ---------- */
section{padding-block:clamp(48px,6vw,86px)}
section + section{border-top:1px solid var(--rule)}
.tinted{background:var(--paper-2)}

/* ---------- botoes ---------- */
.btn{display:inline-block;font:inherit;font-size:.98rem;font-weight:600;text-decoration:none;
  padding:13px 22px;border:1.5px solid var(--seal);cursor:pointer;transition:background .15s,color .15s}
.btn-solid{background:var(--seal);color:#fff}
.btn-solid:hover{background:#0E4232}
.btn-line{background:transparent;color:var(--seal)}
.btn-line:hover{background:var(--seal-soft)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 20px}

/* ---------- especificacao do TCC (hero) ---------- */
.spec{border-top:2px solid var(--ink);border-bottom:1px solid var(--rule);margin:0 0 34px;max-width:var(--measure)}
.spec dl{display:grid;grid-template-columns:auto 1fr;gap:0;margin:0}
.spec dt{font-size:.82rem;letter-spacing:.04em;color:var(--graphite);padding:11px 20px 11px 0;border-bottom:1px solid var(--rule);white-space:nowrap}
.spec dd{font-family:var(--serif);font-size:1.02rem;margin:0;padding:11px 0;border-bottom:1px solid var(--rule);text-align:right}
.spec dl > :nth-last-child(-n+2){border-bottom:0}

/* ---------- listas e fios ---------- */
.ruled{list-style:none;margin:0;padding:0;max-width:var(--measure)}
.ruled li{padding:17px 0;border-bottom:1px solid var(--rule)}
.ruled li:first-child{border-top:1px solid var(--rule)}
.ruled b{display:block;font-weight:650;margin-bottom:3px}
.ruled p{margin:0;color:var(--graphite);font-size:.97rem}

.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:0 44px}
.cols > *{border-top:1px solid var(--rule);padding-top:18px;margin-top:22px}

/* ---------- etapas: sequencia real, por isso numerada ---------- */
.stages{list-style:none;margin:0;padding:0;counter-reset:s}
.stages li{counter-increment:s;display:grid;grid-template-columns:52px 1fr;gap:20px;
  padding:22px 0;border-bottom:1px solid var(--rule)}
.stages li::before{content:counter(s,decimal-leading-zero);font-family:var(--serif);
  font-size:1.5rem;color:var(--rule-strong);line-height:1}
.stages h3{margin-bottom:5px}
.stages p{margin:0;color:var(--graphite);font-size:.97rem}

/* ---------- quem orienta ---------- */
.author{display:grid;grid-template-columns:200px 1fr;gap:38px;align-items:start}
.author-plate{border:1px solid var(--rule-strong);padding:26px 20px;text-align:center;background:#fff}
.author-plate .initials{font-family:var(--serif);font-size:3.2rem;line-height:1;color:var(--ink)}
.author-plate .role{font-size:.8rem;color:var(--graphite);margin-top:12px;padding-top:12px;border-top:1px solid var(--rule)}
.creds{list-style:none;margin:20px 0 0;padding:0;font-size:.97rem}
.creds li{padding:9px 0 9px 20px;border-top:1px solid var(--rule);position:relative;color:var(--graphite)}
.creds li::before{content:"";position:absolute;left:0;top:17px;width:8px;height:1.5px;background:var(--seal)}
@media(max-width:700px){.author{grid-template-columns:1fr;gap:24px}}

/* ---------- galeria ---------- */
.gal{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:14px}
.gal figure{margin:0;min-width:min(260px,78vw);max-width:260px;scroll-snap-align:start}
.gal img{width:100%;height:430px;object-fit:cover;object-position:top;border:1px solid var(--rule)}
.gal figcaption{font-size:.85rem;color:var(--graphite);padding-top:9px}
.gal-ctrl{display:flex;gap:8px;margin-bottom:16px}
.gal-ctrl button{width:36px;height:36px;border:1px solid var(--rule-strong);background:#fff;
  cursor:pointer;font-size:1.1rem;line-height:1;color:var(--ink)}
.gal-ctrl button:hover{background:var(--paper-2)}

/* ---------- faq ---------- */
.faq details{border-top:1px solid var(--rule);padding:16px 0;max-width:var(--measure)}
.faq details:last-of-type{border-bottom:1px solid var(--rule)}
.faq summary{cursor:pointer;font-weight:650;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--seal);font-size:1.2rem;line-height:1}
.faq details[open] summary::after{content:"\2212"}
.faq details p{margin:12px 0 0;color:var(--graphite);font-size:.97rem}

/* ---------- formulario ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:720px;margin-top:28px}
.form .full{grid-column:1/-1}
.form label{display:block;font-size:.84rem;color:var(--graphite);margin-bottom:6px}
.form input,.form select,.form textarea{width:100%;font:inherit;font-size:.98rem;padding:11px 13px;
  border:1px solid var(--rule-strong);background:#fff;color:var(--ink);border-radius:0}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--seal);outline:none}
.form textarea{min-height:104px;resize:vertical}
@media(max-width:620px){.form{grid-template-columns:1fr}.form .full{grid-column:auto}}

/* ---------- artigos ---------- */
.prose h2{margin-top:1.8em}
.prose h3{margin-top:1.5em}
.prose ul,.prose ol{max-width:var(--measure);padding-left:1.25em}
.prose li{margin-bottom:.5em}
.prose blockquote{margin:1.6em 0;padding:4px 0 4px 20px;border-left:2px solid var(--mark);
  font-family:var(--serif);font-size:1.08rem;color:var(--graphite);max-width:var(--measure)}
.post-list{list-style:none;margin:0;padding:0;max-width:var(--measure)}
.post-list li{border-top:1px solid var(--rule);padding:22px 0}
.post-list li:last-child{border-bottom:1px solid var(--rule)}
.post-list a{font-family:var(--serif);font-size:1.3rem;text-decoration:none;display:block;margin-bottom:6px}
.post-list a:hover{color:var(--seal)}
.post-list p{margin:0;color:var(--graphite);font-size:.97rem}

/* ---------- rodape ---------- */
.site-foot{border-top:1px solid var(--rule);padding-block:30px;font-size:.88rem;color:var(--graphite)}
.site-foot .wrap{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.site-foot a{color:var(--graphite)}

/* ---------- whatsapp ---------- */
.wa{position:fixed;right:18px;bottom:18px;z-index:50;background:var(--seal);color:#fff;
  text-decoration:none;font-size:.92rem;font-weight:600;padding:13px 18px;
  box-shadow:0 6px 18px rgba(20,84,63,.28)}
.wa:hover{background:#0E4232}