:root { color-scheme: dark; font-family: Inter, system-ui, sans-serif; background: #09090b; color: #fafafa; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at top, #2b0b13, #09090b 55%); }
main { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.painel { width: min(100%, 520px); padding: 34px; border: 1px solid #3f3f46; border-radius: 18px; background: rgba(20,20,23,.95); box-shadow: 0 24px 80px #0009; }
.rotulo { margin: 0 0 12px; color: #f87171; font: 700 12px ui-monospace, monospace; letter-spacing: .14em; }
h1 { margin: 0; font-size: clamp(28px, 7vw, 42px); }
h2 { margin: 0; font-size: 18px; }
.descricao { color: #a1a1aa; line-height: 1.6; }
.instalacao-mobile { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin: 22px 0; padding: 16px; border: 1px solid #3f3f46; border-radius: 12px; background: #111114; }
.instalacao-mobile p { margin: 5px 0 0; color: #a1a1aa; font-size: 13px; line-height: 1.4; }
.botao-instalar { flex: 0 0 auto; margin: 0; padding: 11px 14px; background: #7c3aed; }
.botao-instalar:hover { background: #8b5cf6; }
.botao-instalar[hidden] { display: none; }
.teste { margin: 24px 0; padding: 18px; border: 1px solid #3f3f46; border-radius: 12px; background: #18181b; }
.teste p { color: #a1a1aa; line-height: 1.5; }
.botao-teste { margin-top: 4px; background: #2563eb; }
.botao-teste:hover { background: #3b82f6; }
#estado-teste { min-height: 22px; margin-bottom: 0; color: #93c5fd; }
form { display: grid; gap: 12px; margin-top: 28px; }
label { margin-top: 8px; font-size: 14px; color: #d4d4d8; }
input { width: 100%; padding: 14px 15px; border: 1px solid #52525b; border-radius: 10px; background: #09090b; color: #fff; font: inherit; }
input:focus { outline: 2px solid #ef4444; outline-offset: 2px; }
button { margin-top: 14px; padding: 15px; border: 0; border-radius: 10px; background: #dc2626; color: #fff; font: 700 15px inherit; cursor: pointer; }
button:hover { background: #ef4444; }
button:disabled { opacity: .55; cursor: wait; }
#estado { min-height: 24px; margin: 4px 0 0; color: #fca5a5; line-height: 1.5; }
@media (max-width: 560px) {
  main { padding: 12px; place-items: start center; }
  .painel { padding: 24px 18px; border-radius: 14px; }
  .instalacao-mobile { align-items: stretch; flex-direction: column; }
  .botao-instalar { width: 100%; }
  button { min-height: 48px; }
}