:root{
  --bg:#0B0E1A; --card:#131829; --border:#232A44;
  --blue:#3D7BFF; --blue-dim:#2A5AC4; --text:#EAF0FF; --dim:#94A0C4; --err:#FF5470; --ok:#2EC4B6;
}
*{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
  background:radial-gradient(800px 500px at 50% -10%, #16204a 0%, transparent 60%), var(--bg);
  color:var(--text); min-height:100vh; display:flex; align-items:center; justify-content:center; padding:24px;
}
.card{width:100%;max-width:420px;background:var(--card);border:1px solid var(--border);
  border-radius:20px;padding:40px 32px;text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.brand{font-weight:800;letter-spacing:.02em;font-size:18px;color:var(--dim);margin-bottom:26px}
.brand span{color:var(--blue)}
h1{font-size:22px;margin-bottom:8px}
.hint{color:var(--dim);font-size:14px;margin-bottom:26px}
.code-input{
  width:100%;font-size:34px;letter-spacing:14px;text-align:center;
  background:#0D1120;border:1px solid var(--border);border-radius:14px;
  color:var(--text);padding:16px 8px;margin-bottom:14px;outline:none;
}
.code-input:focus{border-color:var(--blue)}
button{
  width:100%;background:linear-gradient(135deg,var(--blue),var(--blue-dim));color:#fff;
  border:none;border-radius:999px;padding:15px;font-size:16px;font-weight:700;cursor:pointer;
}
button:disabled{opacity:.6;cursor:wait}
.msg{margin-top:16px;font-size:14px;color:var(--err)}
.msg.ok{color:var(--ok)}
.devices{margin-top:22px;text-align:left;border-top:1px solid var(--border);padding-top:18px}
.devices h2{font-size:16px;margin-bottom:6px}
.devices p{color:var(--dim);font-size:13.5px;margin-bottom:12px}
.devices ul{list-style:none}
.devices li{display:flex;justify-content:space-between;align-items:center;gap:10px;
  background:#0D1120;border:1px solid var(--border);border-radius:12px;padding:12px 14px;margin-bottom:8px;font-size:14px}
.devices small{color:var(--dim);display:block}
.devices .rm{background:transparent;border:1px solid var(--err);color:var(--err);
  border-radius:8px;padding:6px 12px;font-size:12.5px;width:auto}
.foot{margin-top:26px;color:var(--dim);font-size:12.5px}
.text-input{
  width:100%;font-size:17px;text-align:center;
  background:#0D1120;border:1px solid var(--border);border-radius:14px;
  color:var(--text);padding:16px 12px;margin-bottom:14px;outline:none;
}
.text-input:focus{border-color:var(--blue)}
.linkish{background:none;border:none;color:var(--dim);text-decoration:underline;
  font-size:13px;margin-top:12px;cursor:pointer;width:auto;padding:4px 8px}
.linkish:hover{color:var(--text)}
.buy-btn{
  display:block;width:100%;text-align:center;text-decoration:none;
  background:transparent;border:1px solid var(--blue);color:var(--blue);
  border-radius:999px;padding:13px;font-size:15px;font-weight:700;
}
.buy-btn:hover{background:rgba(61,123,255,.12)}
.member-list{list-style:none;text-align:left;margin-top:6px}
.member-list li{margin-bottom:10px}
.member-btn{
  display:flex;justify-content:space-between;align-items:center;gap:10px;width:100%;
  background:#0D1120;border:1px solid var(--border);border-radius:14px;
  color:var(--text);padding:16px 18px;font-size:15px;font-weight:600;cursor:pointer;text-align:left;
}
.member-btn:hover{border-color:var(--blue)}
.member-btn .go{color:var(--blue);font-weight:700}
.member-list{list-style:none;text-align:left;margin-top:6px}
.member-list li{display:flex;justify-content:space-between;align-items:center;gap:12px;
  background:#0D1120;border:1px solid var(--border);border-radius:12px;padding:14px 16px;margin-bottom:10px;font-size:15px}
.member-open{background:linear-gradient(135deg,var(--blue),var(--blue-dim));color:#fff;border:none;
  border-radius:999px;padding:9px 18px;font-size:13.5px;font-weight:700;cursor:pointer;width:auto}

/* ── Responsividade (todos os dispositivos) ── */
@media (max-width:480px){
  body{padding:14px}
  .card{padding:30px 20px;border-radius:18px}
  h1{font-size:20px}
  .hint{font-size:13px}
  .code-input{font-size:27px;letter-spacing:8px;padding:14px 6px}
  .text-input{font-size:16px;padding:15px 12px}
  button{padding:15px;font-size:16px}
  .buy-btn{padding:14px}
  .member-list li{padding:13px 14px;font-size:14.5px;gap:10px}
  .member-open{padding:10px 15px;font-size:13px}
}
@media (max-width:340px){
  .code-input{font-size:23px;letter-spacing:5px}
  h1{font-size:18px}
}
/* Telas muito baixas (paisagem no celular): evita corte vertical */
@media (max-height:560px){
  body{align-items:flex-start;padding-top:20px;padding-bottom:20px}
}
/* Toque confortável e sem zoom indesejado no iOS (fonte ≥16px nos inputs) */
input{font-size:16px}