:root {
  --bg: #0A0B0F;
  --bg-2: #15161A;
  --card: #15161A;
  --linha: #262830;
  --txt: #FAF9F5;
  --txt-2: #9a9ba3;
  --ok: #2fd07a;
  --off: #f2545b;
  --cyan: #00D4FF;
  --azul: #00D4FF;
  --sombra: 0 10px 30px rgba(0, 0, 0, .45);
  --raio: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: radial-gradient(1100px 560px at 50% -12%, #10171d 0%, var(--bg) 62%);
  color: var(--txt);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.logo { height: 34px; display: block; }
button { font: inherit; cursor: pointer; border: none; }

/* ---------- LOGIN ---------- */
.login {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  gap: 20px;
}
.card-login {
  width: 100%;
  max-width: 380px;
  background: var(--card);
  border: 1px solid var(--linha);
  border-radius: var(--raio);
  box-shadow: var(--sombra);
  padding: 32px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card-login .logo { height: 40px; margin: 0 auto 6px; }
.card-login h1 { font-size: 20px; text-align: center; font-weight: 700; }
.card-login .sub { text-align: center; color: var(--txt-2); font-size: 13px; margin-bottom: 8px; }
.card-login label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--txt-2); }
.card-login input {
  background: var(--bg-2);
  border: 1px solid var(--linha);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--txt);
  font-size: 15px;
  outline: none;
}
.card-login input:focus { border-color: var(--azul); }
#btn-entrar {
  margin-top: 6px;
  background: var(--cyan);
  color: #06111f;
  font-weight: 700;
  padding: 13px;
  border-radius: 10px;
  font-size: 15px;
}
#btn-entrar:disabled { opacity: .6; cursor: default; }
.erro { color: var(--off); font-size: 13px; text-align: center; }
.rodape { color: var(--txt-2); font-size: 12px; }

/* ---------- PAINEL ---------- */
.painel { max-width: 760px; margin: 0 auto; padding: 20px 16px 60px; }
.topo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 2px 18px;
}
.link { background: none; color: var(--txt-2); font-size: 14px; }
.link:hover { color: var(--txt); }
.cabecalho { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.cabecalho h1 { font-size: 19px; font-weight: 700; }
.secundario {
  background: var(--bg-2);
  border: 1px solid var(--linha);
  color: var(--txt);
  padding: 9px 14px;
  border-radius: 10px;
  font-size: 14px;
}
.secundario:hover { border-color: var(--azul); }

.lista { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.conexao {
  background: var(--card);
  border: 1px solid var(--linha);
  border-radius: var(--raio);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.conexao .info { flex: 1; min-width: 0; }
.conexao .nome { font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 9px; }
.conexao .numero { color: var(--txt-2); font-size: 13px; margin-top: 2px; }
.conexao .desde { color: var(--txt-2); font-size: 12.5px; margin-top: 4px; }
.conexao .desde b { color: var(--txt); font-weight: 600; }

.badge { font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 999px; letter-spacing: .3px; }
.badge.on { background: rgba(34, 211, 166, .14); color: var(--ok); }
.badge.off { background: rgba(242, 84, 91, .14); color: var(--off); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.on { background: var(--ok); box-shadow: 0 0 0 3px rgba(34, 211, 166, .18); }
.dot.off { background: var(--off); box-shadow: 0 0 0 3px rgba(242, 84, 91, .16); }

.acao {
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}
.acao.conectar { background: var(--cyan); color: #06111f; }
.acao.desconectar { background: rgba(242, 84, 91, .12); color: var(--off); border: 1px solid rgba(242, 84, 91, .35); }
.acao:disabled { opacity: .55; cursor: default; }

.vazio { text-align: center; color: var(--txt-2); padding: 40px; }

/* ---------- MODAL ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 20, .72);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 50;
}
.modal-caixa {
  background: var(--card);
  border: 1px solid var(--linha);
  border-radius: 20px;
  box-shadow: var(--sombra);
  width: 100%;
  max-width: 400px;
  max-height: 92vh;
  overflow-y: auto;
  padding: 24px 22px;
  position: relative;
  text-align: center;
}
.fechar {
  position: absolute; top: 12px; right: 14px;
  background: none; color: var(--txt-2); font-size: 26px; line-height: 1;
}
.fechar:hover { color: var(--txt); }
.modal-caixa h2 { font-size: 18px; margin-bottom: 16px; }
.qr-area {
  background: #fff;
  border-radius: 14px;
  width: 240px; height: 240px;
  margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.qr-area img { width: 100%; height: 100%; object-fit: contain; }
.loader { color: #64748b; font-size: 13px; }

.pair-area { margin: 4px 0 16px; }
.pair-label { color: var(--txt-2); font-size: 12px; text-transform: uppercase; letter-spacing: .6px; }
.pair-code {
  font-size: 30px; font-weight: 800; letter-spacing: 6px;
  margin-top: 6px; color: var(--ok);
  font-variant-numeric: tabular-nums;
}
.pair-aviso { color: #f5b942; font-size: 13px; margin-top: 8px; }

#btn-gerar-codigo { width: 100%; margin-bottom: 18px; }

.instrucoes { text-align: left; background: var(--bg-2); border-radius: 12px; padding: 14px 16px; font-size: 13.5px; color: var(--txt-2); }
.instrucoes strong { color: var(--txt); display: block; margin-bottom: 8px; }
.instrucoes ol { padding-left: 18px; display: flex; flex-direction: column; gap: 6px; }
.instrucoes b { color: var(--txt); }

@media (max-width: 480px) {
  .conexao { flex-wrap: wrap; }
  .conexao .acao { width: 100%; text-align: center; }
}