body { font-family: system-ui, "Segoe UI", Roboto, sans-serif; margin: 0; background: #f3f4f6; color: #1f2937; }
header { background: #111827; color: #f9fafb; padding: .6rem 1rem; }
nav { display: flex; gap: 1rem; align-items: center; max-width: 1000px; margin: 0 auto; }
nav a { color: #e5e7eb; text-decoration: none; }
nav a:hover { color: #fff; }
.marca { font-weight: 700; letter-spacing: .05em; }
.usuario { margin-left: auto; font-size: .85rem; color: #9ca3af; }
.conteudo { max-width: 1000px; margin: 1.5rem auto; padding: 0 1rem; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.15rem; margin-top: 2rem; border-bottom: 1px solid #e5e7eb; padding-bottom: .25rem; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border: 1px solid #e5e7eb; padding: .5rem .6rem; text-align: left; vertical-align: top; }
th { background: #f9fafb; font-size: .85rem; }
.grades { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin: 1rem 0; }
.cartao-mini { background: #fff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 1rem; text-align: center; }
.numero { display: block; font-size: 2rem; font-weight: 700; color: #111827; }
.alerta { padding: .6rem .9rem; border-radius: 6px; }
.alerta.erro { background: #fee2e2; color: #991b1b; }
.alerta.ok { background: #dcfce7; color: #166534; }
.cartao { background: #fff; border: 1px solid #e5e7eb; border-radius: 10px; padding: 1.5rem; max-width: 380px; margin: 4rem auto; }
.centro { display: flex; align-items: flex-start; min-height: 80vh; }
form.coluna, form.curta { display: flex; flex-direction: column; gap: .8rem; max-width: 420px; }
label { display: block; margin: .6rem 0; font-size: .9rem; }
input[type="text"], input[type="password"], input[type="email"], textarea { width: 100%; box-sizing: border-box; padding: .5rem; border: 1px solid #d1d5db; border-radius: 6px; margin-top: .2rem; }
button { background: #111827; color: #fff; border: 0; padding: .55rem 1rem; border-radius: 6px; cursor: pointer; }
button:hover { background: #1f2937; }
button.primario { background: #047857; }
button.link { background: none; color: #e5e7eb; padding: 0; }
button.perigo { color: #dc2626; }
form.inline { display: inline; }
.secao { background: #fff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 1rem; margin: 1rem 0; }
.secao h3 small { color: #6b7280; font-weight: 400; }
.botoes-topo { display: inline; margin-right: .5rem; }
.filtro a { margin-right: .5rem; }
.metadado { color: #4b5563; font-size: .85rem; }