.aluno-body{min-height:100vh;display:flex;flex-direction:column;background-image:linear-gradient(#1e544e0b 1px,transparent 1px),linear-gradient(90deg,#1e544e0b 1px,transparent 1px);background-size:34px 34px}
.aluno-top{border-bottom:1px solid var(--line);background:var(--paper)}
.aluno-top .shell{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.aluno-main{flex:1;display:grid;place-items:center;padding:48px 0}
.aluno-card{width:min(440px,calc(100% - 32px));background:var(--ivory);border:1px solid var(--ink);border-radius:14px;box-shadow:3px 4px 0 var(--ink);padding:30px 28px}
.aluno-card h1{font-size:2.3rem;margin:12px 0 8px}
.aluno-card>p{color:var(--muted);margin-bottom:20px}
.aluno-form{display:grid;gap:8px}
.aluno-form label{font-weight:900;font-size:.92rem;margin-top:8px}
.aluno-form input{width:100%;padding:12px 13px;border:1.5px solid var(--ink);border-radius:9px;background:#fff;font-size:1rem}
.aluno-form input:focus-visible{outline:3px solid #147b6e;outline-offset:2px}
.aluno-form .button{width:100%;margin-top:14px}
.aluno-form button[disabled]{opacity:.6;cursor:progress}
.hint{font-size:.83rem;color:var(--muted)}
.status{min-height:1.4em;font-weight:800;font-size:.93rem;margin-top:8px}
.status[data-kind=erro]{color:var(--rust)}
.status[data-kind=ok]{color:var(--teal)}
.aluno-links{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:18px;font-size:.92rem}
.aluno-links a{font-weight:900;text-decoration:underline;text-underline-offset:4px}
#captcha:empty{display:none}
#captcha{margin-top:10px}
.painel{width:min(860px,calc(100% - 32px));display:grid;gap:22px}
.painel h1{font-size:clamp(2.2rem,5vw,3.2rem);margin:10px 0 0}
.painel-box{background:var(--ivory);border:1px solid var(--ink);border-radius:14px;box-shadow:3px 4px 0 var(--ink);padding:24px}
.painel-box h2{font-size:1.7rem;margin-bottom:12px}
.files{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.files li{display:flex;align-items:center;justify-content:space-between;gap:14px;border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:#fff}
.files li span{color:var(--muted);font-size:.88rem;display:block}
.files .button{padding:9px 14px;font-size:.92rem}
.empty{color:var(--muted)}
.painel-actions{display:flex;gap:12px;flex-wrap:wrap}
.button-ghost{background:var(--ivory)}
.button-ghost:hover{background:#fff}
@media(max-width:560px){.files li{flex-direction:column;align-items:stretch}.files .button{width:100%}.aluno-card{padding:24px 18px}}
.painel-box h3{font-weight:950;font-size:1.15rem;margin:16px 0 8px}.painel-box h3:first-child{margin-top:0}
/* ---------- Curso: player, grade e materiais ---------- */
.painel{width:min(980px,calc(100% - 32px))}
.player-box{padding:0;overflow:hidden}
.player{position:relative;background:var(--ink);aspect-ratio:16/9}
.player video{display:block;width:100%;height:100%;background:#000}
.player-msg{position:absolute;inset:0;display:grid;place-items:center;padding:24px;text-align:center;color:var(--ivory);background:radial-gradient(#ffffff1c 1px,transparent 1px) 0 0/19px 19px,var(--ink)}
.player-msg p{max-width:420px;font-weight:800}
.aula-info{padding:20px 24px 24px;display:grid;gap:8px}
.aula-info h2{font-size:clamp(1.5rem,3vw,2rem);margin:0}
.aula-materiais{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.aula-materiais:empty{display:none}
.aula-nav{display:flex;justify-content:space-between;gap:10px;margin-top:10px}
.aula-nav .button[disabled]{opacity:.45;pointer-events:none}
.modulo{border-top:1px solid var(--line)}
.modulo:first-child{border-top:0}
.modulo summary{display:flex;align-items:baseline;gap:12px;padding:14px 2px;cursor:pointer;list-style:none}
.modulo summary::-webkit-details-marker{display:none}
.mod-num{font:700 .66rem/1 var(--mono);letter-spacing:.1em;color:var(--teal);flex:none}
.modulo summary strong{font-weight:950;font-size:1.05rem}
.mod-qtd{margin-left:auto;font-size:.82rem;color:var(--muted);flex:none}
.aulas{list-style:none;margin:0 0 14px;padding:0;display:grid;gap:6px}
.aula-item{width:100%;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;text-align:left;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;color:inherit;cursor:pointer}
.aula-item:hover{border-color:var(--ink)}
.aula-item.atual{border:2px solid var(--ink);background:var(--mint);padding:9px 11px}
.aula-num{font:800 .72rem/1 var(--mono);background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:6px 7px}
.aula-tit{font-weight:850;line-height:1.3}
.aula-estado{font-size:.8rem;color:var(--muted);white-space:nowrap}
.aula-item.bloqueada{background:var(--paper);color:var(--muted)}
.aula-item.bloqueada .aula-estado{color:var(--rust);font-weight:850}
.aula-item.bloqueada .aula-num::before{content:"🔒 "}
.aula-item.em-breve .aula-estado{font-style:italic}
.files .tag{flex:none}
@media(max-width:560px){.aula-info{padding:16px}.aula-item{grid-template-columns:auto 1fr}.aula-estado{grid-column:2}.aula-nav .button{flex:1}}