:root{--verde:#1e9e4f;--verde-bg:#e3f4ea;--verm:#d33a3a;--verm-bg:#fdeaea;--perigo:#b3261e}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--verde:#3fc274;--verde-bg:#16301f;--verm:#ef6a6a;--verm-bg:#3a1c1c;--perigo:#ef6a6a}}
body:not(.prof) .so-prof{display:none!important}
body.deslogado header.top,body.deslogado main,body.deslogado footer,body.deslogado #barraSel{display:none!important}
body:not(.deslogado) #auth{display:none}
header.top .quem{font-size:13px;color:var(--hd-tx);margin-left:auto;max-width:40vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
header.top #btSair{padding:5px 12px}
/* login */
#auth{max-width:520px;margin:0 auto;padding:24px 16px 50px}
#auth .logo{font-size:26px;font-weight:700;color:var(--az);margin:6px 0 4px}
#auth .card{margin-top:14px}
.abas{display:flex;gap:8px;margin:10px 0}
.abas .bt.on,.tabs .bt.on{background:var(--az);color:var(--on-az)}
.form{display:grid;gap:12px}
.form label{display:flex;flex-direction:column;gap:4px;font-size:13px;font-weight:600;color:var(--mut)}
.form input[type=text],.form input[type=email],.form input[type=password],.form input[type=tel],.form input[type=date],.form select{font:inherit;font-size:15px;padding:9px 10px;border:1px solid var(--bd);border-radius:8px;background:var(--card);color:var(--tx);width:100%;max-width:100%}
.form .dupla{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:12px}
.form .chk{flex-direction:row;align-items:flex-start;gap:8px;font-weight:400;color:var(--tx);font-size:14px}
.form .chk input{margin-top:3px;width:18px;height:18px;flex:none}
.form .radios{display:flex;gap:18px;font-size:15px}
.msg{font-size:14px;padding:8px 12px;border-radius:8px}
.msg.erro{background:var(--verm-bg);color:var(--verm);border:1px solid var(--verm)}
.msg.ok{background:var(--verde-bg);color:var(--verde);border:1px solid var(--verde)}
.lgpd{font-size:13px;color:var(--mut)}
.link{background:none;border:0;color:var(--az2);text-decoration:underline;cursor:pointer;font:inherit;padding:0}
button.bt.perigo{border-color:var(--perigo);color:var(--perigo)}
button.bt.perigo:hover,.dlg button.bt.perigo{background:var(--perigo);color:#fff}
/* diálogo */
.dlg-fundo{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:100;display:flex;align-items:center;justify-content:center;padding:16px}
.dlg{background:var(--card);color:var(--tx);border-radius:14px;padding:18px;max-width:420px;width:100%;box-shadow:0 8px 30px var(--sombra)}
.dlg h3{margin:0 0 8px}
.dlg input{width:100%;font:inherit;padding:9px 10px;border:1px solid var(--bd);border-radius:8px;background:var(--bg);color:var(--tx)}
.dlg-bt{display:flex;gap:8px;justify-content:flex-end;margin-top:14px}
/* resolver */
.res-topo{display:flex;gap:8px 14px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.res-topo h2{margin:0}
.prog{height:8px;border-radius:6px;background:var(--az4);overflow:hidden;margin:6px 0 12px}
.prog i{display:block;height:100%;background:var(--az2)}
.alts li[tabindex]{cursor:pointer;display:flex;gap:8px;align-items:flex-start;border-width:2px}
.alts li .alt-t{flex:1;min-width:0}
.alts li .alt-t p{margin:0 0 6px}
.alts li.marcada{border-color:var(--az2);background:var(--az4)}
.alts li.certa{border-color:var(--verde);background:var(--verde-bg)}
.alts li.errada{border-color:var(--verm);background:var(--verm-bg)}
.alts.trava li{cursor:default}
.nav-res{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0;align-items:center}
.resol{background:var(--bg);border:1px solid var(--bd);border-radius:12px;padding:12px 16px;margin-top:14px}
.resol p{margin:6px 0}
.resol ol{margin:6px 0 6px 20px;padding:0}
.veredito{font-weight:700;margin-top:12px}
.veredito.ok{color:var(--verde)}.veredito.no{color:var(--verm)}
.ia-box{margin-top:14px;display:grid;gap:8px}
.ia-box textarea{font:inherit;padding:9px 10px;border:1px solid var(--bd);border-radius:8px;background:var(--card);color:var(--tx);width:100%;min-height:70px}
.ia-resp{white-space:pre-wrap;background:var(--card);border:1px solid var(--bd);border-radius:10px;padding:10px 14px}
.selo{display:inline-block;font-size:12px;font-weight:700;background:var(--lar-bg);color:var(--lar-tx);padding:3px 10px;border-radius:14px;margin-bottom:8px}
.enun-ia{white-space:pre-wrap}
.placar{font-size:34px;font-weight:700;color:var(--az)}
.brasil{font-size:14px;color:var(--mut);margin-top:10px}
/* listas */
.lst{display:grid;gap:12px}
.lst .card{display:grid;gap:8px}
.lst .nome{font-weight:700;font-size:17px;color:var(--az)}
.lst .meta{font-size:13px;color:var(--mut)}
.lst .acoes{display:flex;gap:6px;flex-wrap:wrap}
.lst .acoes .bt{padding:5px 11px;font-size:13px}
.bar{height:12px;background:var(--az4);border-radius:6px;overflow:hidden;min-width:60px}
.bar i{display:block;height:100%;background:var(--verde)}
.des-lin{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) auto;gap:8px 12px;align-items:center;padding:6px 0;border-bottom:1px solid var(--bd);font-size:14px}
@media (max-width:520px){.des-lin{grid-template-columns:minmax(0,1fr) auto}.des-lin .bar{grid-column:1/-1}}
@media (max-width:860px){header.top .quem{display:none}}

/* 07/10: imagens nunca estouram a largura (auditoria: 2025/67752 a 390px) */
img{max-width:100%;height:auto}
table{display:block;max-width:100%;overflow-x:auto}

/* 07/10: tela de entrada com foto da sala da Reciclagem (espaco_80) sob véu azul.
   Só vale deslogado; a área logada não muda. A foto fica num pseudo-elemento fixo,
   então não cria largura extra nem rolagem horizontal. */
body.deslogado{background:#0b2540;min-height:100vh;overflow-x:hidden}
body.deslogado::before{content:"";position:fixed;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(8,30,54,.88) 0%,rgba(15,46,80,.80) 45%,rgba(8,30,54,.92) 100%),
  url("img/fundo/login_sala.webp") center 40%/cover no-repeat,#0b2540}
body.deslogado #auth{position:relative}
body.deslogado #auth .logo{color:#fff}
body.deslogado #auth>.sub{color:#dbe9f7}
body.deslogado #auth .card{box-shadow:0 10px 34px rgba(0,0,0,.35);border-color:transparent}
body.deslogado #auth .abas .bt{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
body.deslogado #auth .abas .bt.on{background:#fff;color:#1F4E79;border-color:#fff}
@media (max-width:520px){body.deslogado::before{background-position:30% 40%}}
/* espaço previsto para a foto dos professores (o bloco está comentado no index.html) */
body.deslogado .auth-profs{max-width:520px;margin:-30px auto 40px;padding:0 16px;display:flex;align-items:center;gap:12px;color:#dbe9f7;font-size:14px}
body.deslogado .auth-profs img{width:72px;height:72px;border-radius:50%;object-fit:cover;border:2px solid #fff;flex:none}
body:not(.deslogado) .auth-profs{display:none}

/* 07/10: logo da Reciclagem abaixo do formulário de entrada (pedido do Rogério, 01h53) */
.auth-marca{display:none}
body.deslogado .auth-marca{display:block;text-align:center;margin:18px auto 32px}
body.deslogado .auth-marca img{background:#fff;border-radius:12px;padding:10px 16px;width:200px;height:auto;box-shadow:0 6px 20px rgba(0,0,0,.3)}