:root{--fundo: #121316;--superficie: #1b1d22;--superficie-2: #181a1f;--borda: #2e3138;--texto: #f5f4f0;--texto-2: #8d9199;--texto-3: #5c6068;--marca: #ff4d2e;--erro: #ff5a5a}*{box-sizing:border-box}body{margin:0;background:var(--fundo);color:var(--texto);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:15px}button{font:inherit;cursor:pointer;border-radius:8px;border:1px solid var(--borda);background:var(--superficie);color:var(--texto);padding:9px 14px}button:hover:not(:disabled){border-color:var(--texto-3)}button:disabled{opacity:.45;cursor:default}button.primario{background:var(--marca);border-color:var(--marca);color:#fff;font-weight:600}input{font:inherit;width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--borda);background:var(--superficie-2);color:var(--texto)}input:focus{outline:2px solid var(--marca);outline-offset:-1px}.marca{color:var(--marca);font-weight:700;letter-spacing:-.3px}.secundario{color:var(--texto-2)}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.erro{color:var(--erro)}.topo{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;border-bottom:1px solid var(--borda)}.conteudo{max-width:1100px;margin:0 auto;padding:24px 20px 64px}.cartao{background:var(--superficie);border:1px solid var(--borda);border-radius:12px;padding:16px}.lista{display:grid;gap:10px}.linha-aluno{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;text-align:left}table{width:100%;border-collapse:collapse}th,td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--borda)}th{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--texto-3)}.rolagem{overflow-x:auto}.centro{min-height:100vh;display:grid;place-items:center;padding:20px}.form{width:100%;max-width:340px;display:grid;gap:12px}