/* ==========================================================================
   4th TAAS · Workshop on Actualistic Taphonomy in South America · 2027
   style.css completo
   Cobre: header.php, footer.php, index.php, abstracts.php, flash/alert,
   tabelas, linha do tempo, fotos, cards, formularios e area administrativa simples.
   ========================================================================== */

:root{
  --deep:#0d3a52; --deep-2:#0a2c3f; --sea:#1d7d84; --sea-2:#16818b; --sea-light:#7fc9c0;
  --paper:#fbfaf7; --paper-2:#f4f1ea; --ink:#0d1a21; --ink-strong:#0d3a52; --ink-soft:#55666f;
  --rule:#ddd6c8; --white:#fff; --danger:#a33; --ok:#2f7d4f;
  --serif:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --wrap:1140px; --pad:clamp(1.25rem,4vw,2.75rem); --sec-y:clamp(2.75rem,5.5vw,4.5rem);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);font-size:1.0625rem;line-height:1.7;color:var(--ink);
  background:var(--paper);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
svg{display:block}
main{display:block}

/* ---------- Tipografia ---------- */
h1,h2,h3,h4,h5{margin:0 0 .6em;line-height:1.2;font-weight:500}
h1,h2{font-family:var(--serif);font-weight:400}
h1{font-size:clamp(1.9rem,4.6vw,3.05rem);line-height:1.1}
h2{font-size:clamp(1.45rem,3.2vw,2.05rem);line-height:1.22}
h3{font-size:clamp(1.1rem,2.2vw,1.35rem)}
h4{font-family:var(--sans);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.12em}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
a{color:var(--sea);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--sea-2)}
small{font-size:.86rem;color:var(--ink-soft)}
hr{border:0;border-top:1px solid var(--rule);margin:2.5rem 0}
strong{font-weight:600}

/* ---------- Layout ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}
.prose{max-width:64ch}
.prose p+h2,.prose p+h3{margin-top:2em}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.35em}
.prose li{margin-bottom:.5em}
.skip{position:absolute;left:-9999px;top:0;background:var(--deep);color:#fff;padding:.75rem 1.25rem;z-index:999}
.skip:focus{left:.5rem;top:.5rem}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- Cabecalho ---------- */
.site-header{background:var(--deep);border-bottom:1px solid rgba(255,255,255,.1);position:sticky;top:0;z-index:60}
.site-header__inner,.site-headerinner{display:flex;align-items:center;justify-content:space-between;
  gap:1.25rem;min-height:62px;padding-block:.35rem}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:#fff;flex-shrink:0}
.brand:hover{color:#fff}
.brand__txt,.brandtxt{display:flex;flex-direction:column;line-height:1.1}
.brand__mark,.brandmark{font-family:var(--serif);font-size:1.25rem;letter-spacing:.05em;line-height:1;color:#fff}
.brand__sub,.brandsub{font-size:.63rem;letter-spacing:.09em;text-transform:uppercase;
  color:rgba(255,255,255,.55);margin-top:.15rem}

.primary-nav ul{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:.15rem 1.35rem;margin:0;padding:0}
.primary-nav a{display:inline-block;color:rgba(255,255,255,.74);text-decoration:none;font-size:.88rem;
  font-weight:500;padding:.4rem 0;border-bottom:2px solid transparent;
  transition:color .16s ease,border-color .16s ease}
.primary-nav a:hover{color:#fff}
.primary-nav a.is-active{color:#fff;border-bottom-color:var(--sea-light)}

.nav-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.3);
  border-radius:3px;padding:.5rem .55rem;cursor:pointer}
.nav-toggle__bars,.nav-togglebars{display:block;width:19px;height:2px;background:#fff;position:relative}
.nav-toggle__bars::before,.nav-toggle__bars::after,
.nav-togglebars::before,.nav-togglebars::after{content:"";display:block;width:19px;height:2px;
  background:#fff;position:absolute;left:0}
.nav-toggle__bars::before,.nav-togglebars::before{top:-6px}
.nav-toggle__bars::after,.nav-togglebars::after{top:6px}

/* ---------- Hero (home) ---------- */
.hero{position:relative;overflow:hidden;color:rgba(255,255,255,.9);
  background:var(--deep);background-image:linear-gradient(158deg,#0a2c3f 0,#10506a 52%,#1d7d84 100%);
  padding-block:clamp(3.25rem,9vw,6.5rem) clamp(2.75rem,7vw,4.5rem)}
.hero::after{content:"";position:absolute;inset:auto -12% -45% auto;width:62%;height:120%;
  background:radial-gradient(closest-side,rgba(127,201,192,.16),transparent 72%);pointer-events:none}
.hero__globe{position:absolute;right:-4%;top:50%;width:min(62vw,640px);height:auto;
  transform:translateY(-50%);opacity:.55;pointer-events:none;z-index:0}
.hero__inner{position:relative;z-index:1}
.hero .wrap{position:relative;z-index:1}
.hero h1{color:#fff;max-width:24ch;margin-bottom:.5rem}
.hero__kicker{font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--sea-light);margin-bottom:1rem}
.hero__sub,.hero .tagline{font-family:var(--serif);font-style:italic;font-weight:400;
  font-size:clamp(1.15rem,2.4vw,1.5rem);color:var(--sea-light);margin-bottom:1.9rem}
.facts,.hero .facts{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(165px,1fr));
  gap:1.3rem 2rem;margin:0 0 2.15rem;padding:0;max-width:780px}
.facts li{border-top:1px solid rgba(255,255,255,.26);padding-top:.6rem;font-size:.93rem;color:rgba(255,255,255,.9)}
.facts strong{display:block;font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--sea-light);margin-bottom:.2rem}

/* ---------- Cabecalho de pagina interna ---------- */
.page-head{position:relative;overflow:hidden;color:rgba(255,255,255,.85);
  background:var(--deep);background-image:linear-gradient(160deg,#0a2c3f 0,#0d3a52 100%);
  padding-block:clamp(2.75rem,7vw,5rem) clamp(4rem,9vw,6rem)}
.page-head__inner{position:relative;z-index:1}
.page-head h1{color:#fff;max-width:26ch;margin-bottom:.5rem}
.page-head .lead,.page-head .lede{font-family:var(--serif);font-size:clamp(1.1rem,2.3vw,1.4rem);
  font-style:italic;color:rgba(255,255,255,.82);max-width:60ch;margin:0}
.page-head .eyebrow{color:var(--sea-light)}
.page-head__arc{position:absolute;left:0;right:0;bottom:-1px;width:100%;height:clamp(50px,8vw,110px);z-index:0}

/* ---------- Secoes e faixas ---------- */
.section,.band{padding-block:var(--sec-y)}
.section,.band--light{background:var(--paper);color:var(--ink)}
.section h1,.section h2,.section h3,.section h4,
.band--light h1,.band--light h2,.band--light h3,.band--light h4{color:var(--ink-strong)}
.band--paper,.section--paper-2,.section--sand{background:var(--paper-2);color:var(--ink)}
.band--deep,.band--dark,.section--dark,.section--deep{background:var(--deep);color:rgba(255,255,255,.86)}
.section--abyss{background:var(--deep-2);color:rgba(255,255,255,.82)}
.band--sea,.section--accent{background:var(--sea);color:rgba(255,255,255,.92)}
.band--deep h1,.band--deep h2,.band--deep h3,.band--deep h4,
.band--dark h1,.band--dark h2,.band--dark h3,.band--dark h4,
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4,
.section--deep h1,.section--deep h2,.section--deep h3,.section--deep h4,
.section--abyss h1,.section--abyss h2,.section--abyss h3,.section--abyss h4,
.band--sea h1,.band--sea h2,.band--sea h3,.band--sea h4,
.section--accent h1,.section--accent h2,.section--accent h3,.section--accent h4{color:#fff}
.band--deep a,.band--dark a,.section--dark a,.section--deep a,.section--abyss a{color:var(--sea-light)}
.band--sea a,.section--accent a{color:#fff}

.eyebrow,.kicker{display:block;font-family:var(--sans);font-size:.68rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--sea);margin-bottom:.55rem}
.band--deep .eyebrow,.band--dark .eyebrow,.section--dark .eyebrow,
.section--deep .eyebrow,.section--abyss .eyebrow{color:var(--sea-light)}
.lead-in{font-size:clamp(1.02rem,1.9vw,1.18rem);line-height:1.65;color:var(--ink-soft);max-width:58ch}
.lede{font-family:var(--serif);font-size:clamp(1.2rem,2.2vw,1.5rem);line-height:1.5;color:var(--ink-strong)}
.section--deep .lede,.section--abyss .lede,.band--deep .lede{color:#fff}
.band--deep .lead-in,.section--dark .lead-in{color:rgba(255,255,255,.76)}

/* ---------- Duas colunas ---------- */
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(1.5rem,5vw,4rem);align-items:start}
.split__aside h2{max-width:18ch}

/* ---------- Botoes e links ---------- */
.btn{display:inline-block;padding:.85rem 1.7rem;border-radius:2px;font-family:var(--sans);font-size:.92rem;
  font-weight:600;letter-spacing:.02em;text-decoration:none;border:1px solid var(--sea);
  background:var(--sea);color:#fff;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease}
.btn:hover{background:var(--sea-2);border-color:var(--sea-2);color:#fff}
.btn .arrow{display:inline-block;margin-left:.35rem;transition:transform .18s ease}
.btn:hover .arrow{transform:translateX(3px)}
.btn--primary{background:var(--sea);color:#fff}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.48)}
.btn--ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn--outline{background:transparent;color:var(--deep);border-color:var(--deep)}
.btn--outline:hover{background:var(--deep);color:#fff}
.btn--light{background:#fff;color:var(--deep);border-color:#fff}
.btn--light:hover{background:var(--sea-light);border-color:var(--sea-light);color:var(--deep-2)}
.hero .btn{background:#fff;color:var(--deep);border-color:#fff}
.hero .btn:hover{background:var(--sea-light);border-color:var(--sea-light)}
.link-arrow{display:inline-block;font-weight:600;font-size:.92rem;text-decoration:none;
  border-bottom:1px solid currentColor;padding-bottom:1px;margin-right:1.35rem}
.link-arrow::after{content:" \2192"}

/* ---------- Tabelas ---------- */
.table-wrap{overflow-x:auto;margin-bottom:2.25rem;-webkit-overflow-scrolling:touch}
.table{width:100%;border-collapse:collapse;font-size:.93rem;background:#fff}
.table caption{text-align:left;font-family:var(--serif);font-size:1.2rem;color:var(--ink-strong);padding-bottom:.6rem}
.table th,.table td{padding:.65rem .9rem;border-bottom:1px solid var(--rule);text-align:left;vertical-align:top}
.table thead th{font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-soft);border-bottom:2px solid var(--rule)}
.table tbody th{font-weight:600;white-space:nowrap;color:var(--ink-strong)}
.table .is-break{background:var(--paper-2)}
.band--deep .table,.section--dark .table{background:rgba(255,255,255,.055)}
.band--deep .table th,.band--deep .table td,.section--dark .table th,.section--dark .table td{
  border-bottom-color:rgba(255,255,255,.14);color:#e8f1f3}
.band--deep .table caption,.section--dark .table caption,
.band--deep .table tbody th,.section--dark .table tbody th{color:#fff}

/* ---------- Avisos e paineis ---------- */
.notice,.alert{border-left:3px solid var(--sea);background:rgba(29,125,132,.07);
  padding:1.05rem 1.3rem;margin:1.75rem 0;font-size:.94rem}
.notice p:last-child,.alert p:last-child{margin-bottom:0}
.alert--success{border-color:var(--ok);background:rgba(47,125,79,.09)}
.alert--error{border-color:var(--danger);background:rgba(170,51,51,.08)}
.band--deep .notice,.section--dark .notice{background:rgba(255,255,255,.07);border-color:var(--sea-light)}
.panel{border:1px solid var(--rule);border-left:4px solid var(--sea);background:#fff;
  padding:1.5rem 1.6rem;margin:0 0 1.75rem;border-radius:2px}
.panel--success{border-left-color:var(--ok);background:rgba(47,125,79,.08)}
.panel--error{border-left-color:var(--danger);background:rgba(170,51,51,.07)}
.panel h2{font-size:1.5rem;color:var(--ink-strong)}
.panel ul{margin:.5rem 0 0;padding-left:1.2rem}

/* ---------- Formularios ---------- */
.form{background:#fff;border:1px solid var(--rule);padding:clamp(1.25rem,3vw,2rem);border-radius:2px}
.field{margin-bottom:1.3rem}
fieldset.field{border:0;padding:0;min-width:0}
fieldset.field legend{font-size:.87rem;font-weight:600;color:var(--ink-strong);margin-bottom:.4rem;padding:0}
label{display:block;font-size:.87rem;font-weight:600;color:var(--ink-strong);margin-bottom:.4rem}
.req{color:var(--danger)}
input[type=text],input[type=email],input[type=tel],input[type=url],input[type=number],
input[type=password],input[type=file],select,textarea{
  width:100%;font-family:var(--sans);font-size:1rem;color:var(--ink);background:#fff;
  border:1px solid var(--rule);border-radius:2px;padding:.68rem .82rem;line-height:1.5;
  transition:border-color .15s ease,box-shadow .15s ease}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--sea);box-shadow:0 0 0 3px rgba(29,125,132,.15)}
textarea{min-height:130px;resize:vertical}
.hint,.help{display:block;font-size:.82rem;color:var(--ink-soft);margin-top:.3rem}
.radio-group,.checkbox-group{display:flex;flex-wrap:wrap;gap:.55rem 1.45rem;margin-top:.35rem}
.radio-group label,.checkbox-group label,label.radio,label.checkbox{display:flex;align-items:center;gap:.55rem;
  font-weight:400;font-size:.95rem;color:var(--ink);margin:.35rem 0}
input[type=radio],input[type=checkbox]{width:auto;margin:0}

/* ---------- Datas ---------- */
.dates,.dates-list{list-style:none;margin:2.15rem 0 0;padding:0;border-top:1px solid var(--rule)}
.dates li,.dates-list li{display:grid;grid-template-columns:minmax(140px,200px) 1fr;gap:1.25rem;
  padding:.95rem 0;border-bottom:1px solid var(--rule);align-items:baseline}
.dates time,.dates-list time,.dates-list .date{font-family:var(--serif);font-size:1.15rem;color:var(--sea);white-space:nowrap}
.dates li.is-highlight{background:rgba(127,201,192,.1);padding-inline:.8rem;margin-inline:-.8rem;
  border-left:3px solid var(--sea-light)}
.section--deep .dates,.section--abyss .dates,.band--deep .dates-list,.section--dark .dates-list{border-top-color:rgba(255,255,255,.16)}
.section--deep .dates li,.section--abyss .dates li,.band--deep .dates-list li,.section--dark .dates-list li{border-bottom-color:rgba(255,255,255,.16)}
.section--deep .dates time,.section--abyss .dates time,.band--deep .dates-list time,
.section--dark .dates-list time{color:var(--sea-light)}

/* ---------- Cards ---------- */
.grid,.card-grid,.pub-grid,.explore-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:2rem;margin-top:2.15rem}
.card{background:#fff;border:1px solid var(--rule);border-top:3px solid var(--sea);padding:1.5rem 1.4rem 1.6rem;border-radius:2px}
.pub-grid article,.explore-grid article{border-top:1px solid var(--rule);padding-top:1rem}
.card__num,.cardnum{display:block;font-family:var(--serif);font-size:1.15rem;color:var(--ink-soft);line-height:1;margin-bottom:.5rem}
.card h3,.pub-grid h3,.explore-grid h3{margin-bottom:.4rem;color:var(--ink-strong)}
.card p,.pub-grid p,.explore-grid p{font-size:.95rem}
.band--deep .card,.section--dark .card{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2)}

/* ---------- Fotos, linha do tempo, indice ---------- */
.photo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:1.25rem;margin:2rem 0 0}
.photo-grid figure{margin:0;background:var(--paper-2);border-radius:2px;overflow:hidden}
.photo-grid img{width:100%;height:215px;object-fit:cover;transition:transform .35s ease}
.photo-grid figure:hover img{transform:scale(1.03)}
.photo-grid figcaption{padding:.7rem .92rem;font-size:.81rem;line-height:1.5;color:var(--ink-soft)}
.band--deep .photo-grid figcaption,.section--dark .photo-grid figcaption{color:rgba(255,255,255,.72)}
.timeline{list-style:none;padding:0;margin:2.5rem 0 0;border-left:2px solid var(--rule)}
.timeline li{position:relative;padding:0 0 2.6rem 1.9rem}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-7px;top:.5rem;width:12px;height:12px;border-radius:50%;background:var(--sea)}
.timeline .year{display:block;font-family:var(--serif);font-size:1.6rem;line-height:1;color:var(--sea);margin-bottom:.3rem}
.timeline h3{margin-bottom:.25rem}
.timeline .meta{font-size:.88rem;color:var(--ink-soft);letter-spacing:.015em;margin-bottom:.8rem}
.band--deep .timeline,.section--dark .timeline{border-left-color:rgba(255,255,255,.2)}
.band--deep .timeline .year,.section--dark .timeline .year,
.band--deep .timeline li::before,.section--dark .timeline li::before{color:var(--sea-light);background:var(--sea-light)}
.band--deep .timeline .meta,.section--dark .timeline .meta{color:rgba(255,255,255,.6)}
.toc{display:flex;flex-wrap:wrap;gap:.55rem 1.55rem;margin-top:1.75rem;font-size:.9rem}
.toc a{font-weight:600;text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:1px}

/* ---------- Rodape ---------- */
.site-footer{background:var(--deep-2);color:rgba(255,255,255,.68);padding-block:clamp(2.5rem,6vw,4rem);font-size:.9rem}
.site-footer h2,.site-footer h3,.site-footer h4{color:#fff;font-family:var(--sans);font-size:.73rem;font-weight:600;
  letter-spacing:.13em;text-transform:uppercase;margin-bottom:.8rem}
.site-footer a{color:var(--sea-light);text-decoration:none}
.site-footer a:hover{color:#fff}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer ul li{margin-bottom:.38rem}
.site-footer .brand__mark,.site-footer .brandmark{color:#fff;display:block}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(195px,1fr));gap:2.25rem}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem 2rem;
  margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.12);font-size:.85rem;color:rgba(255,255,255,.5)}
.footer-bottom p{margin:0}
.footer-bottom a{color:rgba(255,255,255,.65)}
.footer-bottom a:hover{color:#fff}
.site-footer__logos{list-style:none;margin:3rem 0 0;padding:1.5rem 0 0;display:flex;flex-wrap:wrap;gap:.75rem 2rem;
  border-top:1px solid rgba(255,255,255,.16);font-size:.78rem;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:rgba(255,255,255,.6)}

/* ---------- Acessibilidade ---------- */
a:focus-visible,.btn:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--sea);outline-offset:3px}
.hero a:focus-visible,.page-head a:focus-visible,.section--deep a:focus-visible,.section--abyss a:focus-visible,
.band--deep a:focus-visible,.section--dark a:focus-visible,.site-header a:focus-visible,.site-footer a:focus-visible{
  outline-color:var(--sea-light)}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* ---------- Responsivo ---------- */
@media (max-width:900px){
  .site-header__inner,.site-headerinner{min-height:58px;flex-wrap:wrap}
  .nav-toggle{display:block}
  .primary-nav{display:none;width:100%;padding-block:.6rem}
  .primary-nav.is-open{display:block}
  .primary-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .primary-nav a{display:block;padding:.65rem 0;border-bottom:1px solid rgba(255,255,255,.1)}
  .primary-nav a.is-active{border-bottom-color:var(--sea-light)}
}
@media (max-width:820px){
  .split{grid-template-columns:1fr}
  .hero__globe{right:-30%;width:95vw;opacity:.3}
}
@media (max-width:620px){
  body{font-size:1rem}
  .facts,.hero .facts{grid-template-columns:1fr 1fr;gap:.9rem 1.15rem}
  .dates li,.dates-list li{grid-template-columns:1fr;gap:.15rem}
  .photo-grid img{height:185px}
  .brand__sub,.brandsub{display:none}
  .table th,.table td{padding:.55rem .68rem;font-size:.89rem}
  .timeline li{padding-left:1.5rem}
}
/* ===== HISTORY: fotos em proporcao original ===== */
.history-figure{margin:2.25rem 0 0;max-width:720px}
.history-figure img{width:100%;height:auto;border-radius:2px;background:var(--paper-2);box-shadow:0 8px 28px rgba(10,44,63,.18)}
.history-figure figcaption{font-size:.8rem;line-height:1.5;color:var(--ink-soft);padding-top:.6rem}
.section--deep .history-figure figcaption{color:rgba(255,255,255,.65)}
#origins .history-figure{max-width:none}
.timeline--photos .timeline__body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1.5rem 2.25rem;align-items:start}
.timeline--photos .history-figure{margin-top:.35rem;max-width:none}
@media (max-width:900px){.timeline--photos .timeline__body{grid-template-columns:1fr}}