.o2v-portal{
  max-width:480px;margin:0 auto;font-family:'Segoe UI',system-ui,sans-serif;
  background:#0d1a12;border:1px solid #1f3a28;border-radius:16px;padding:32px;color:#e7f5ea;
}
.o2v-login-box input{
  width:100%;box-sizing:border-box;padding:12px 14px;margin-bottom:12px;
  background:#0a140e;border:1px solid #1f3a28;border-radius:8px;color:#e7f5ea;font-size:15px;
}
.o2v-login-box h3{margin-top:0;color:#4ade80;font-size:14px;text-transform:uppercase;letter-spacing:1px;}
#o2v-login-btn, #o2v-logout-btn{
  padding:12px 16px;border:none;border-radius:8px;cursor:pointer;font-weight:700;
}
#o2v-login-btn{
  width:100%;background:linear-gradient(90deg,#16a34a,#22c55e 55%,#4ade80);color:#04180b;
}
#o2v-logout-btn{background:#132a1c;color:#e7f5ea;border:1px solid #1f3a28;font-size:13px;padding:8px 12px;}
.o2v-err{color:#f87171;font-size:13px;margin-top:6px;min-height:16px;}
.o2v-codes-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;}
#o2v-welcome{font-weight:700;color:#7fa38c;font-size:14px;}
.o2v-timer-row{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.o2v-timer-bar{flex:1;height:8px;background:#0a140e;border:1px solid #1f3a28;border-radius:6px;overflow:hidden;}
#o2v-timer-fill{
  height:100%;width:100%;border-radius:6px;
  background:linear-gradient(90deg,#166534,#22c55e 55%,#4ade80);
  transition:width 1s linear,background .3s;
}
#o2v-timer-fill.o2v-timer-warn{background:linear-gradient(90deg,#f87171,#fb923c);}
#o2v-timer-secs{
  font-family:'Courier New',monospace;font-size:13px;font-weight:700;color:#7fa38c;
  min-width:32px;text-align:right;
}
.o2v-account-card{
  background:#0a140e;border:1px solid #1f3a28;border-radius:10px;padding:16px 18px;margin-bottom:12px;
  display:flex;justify-content:space-between;align-items:center;
}
.o2v-account-label{font-weight:600;font-size:14.5px;}
.o2v-account-code{
  font-family:'Courier New',monospace;font-size:22px;font-weight:800;letter-spacing:2px;color:#4ade80;
}
.o2v-timer{font-size:11px;color:#5c7a68;margin-top:2px;}