:root{--marrom:#321400;--marrom-escuro:#1d0900;--dourado:#ce8610;--dourado-claro:#efc468;--creme:#fff8e9;--verde:#286c64}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:linear-gradient(rgba(22,8,2,.58),rgba(22,8,2,.7)),url("../img/fundo-biblioteca.jpg") center/cover fixed no-repeat;color:var(--marrom);font-family:Arial,Helvetica,sans-serif}.acesso-professor{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:28px}.cartao-professor{width:min(460px,100%);padding:24px 38px 31px;border:1px solid #d8ad60;border-top:7px solid var(--verde);border-radius:22px;background:var(--creme);box-shadow:0 18px 45px rgba(0,0,0,.42);text-align:center}.marca-professor{display:inline-block}.marca-professor img{width:190px;max-height:170px;object-fit:contain;filter:drop-shadow(0 7px 9px rgba(50,20,0,.22))}.identificacao-professor{display:inline-block;margin:0 0 8px;padding:6px 12px;border-radius:999px;background:#dfefe9;color:#1e6258;font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.06em}.cartao-professor h1{margin:4px 0 7px;font:700 34px/1.08 Georgia,"Times New Roman",serif}.subtitulo-professor{margin:0 0 20px;color:#76563a;line-height:1.45}.cartao-professor form{text-align:left}.cartao-professor label{display:block;margin:13px 0 6px;font-weight:800}.cartao-professor input{width:100%;min-height:48px;padding:11px 14px;border:1px solid #bd780d;border-radius:12px;background:#fff;font:inherit}.cartao-professor button{width:100%;min-height:48px;margin-top:20px;border:0;border-radius:999px;background:var(--dourado);color:#fff;font:800 16px Arial,Helvetica,sans-serif;cursor:pointer}.cartao-professor button:hover{background:#ad6d08}.mensagem-professor{margin-bottom:14px;padding:11px 13px;border:1px solid #d16859;border-radius:10px;background:#ffe5df;color:#8d2018;font-weight:700}.links-professor{display:flex;justify-content:center;gap:10px 18px;flex-wrap:wrap;margin-top:20px}.links-professor a{color:#7b4300;font-weight:700}@media(max-width:520px){.acesso-professor{padding:14px}.cartao-professor{padding:18px 20px 25px}.marca-professor img{width:155px}.cartao-professor h1{font-size:29px}}