.tpc-gate-page {
    box-sizing: border-box;
    margin: 0 auto;
    max-width: 760px;
    padding: 64px 20px;
}
.tpc-gate-card {
    background: #fff;
    border: 1px solid rgba(0,0,0,.1);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0,0,0,.08);
    padding: 36px;
    text-align: center;
}
.tpc-lock-icon {
    font-size: 42px;
    line-height: 1;
    margin-bottom: 14px;
}
.tpc-gate-card h1 {
    margin: 0 0 12px;
}
.tpc-unlock-form {
    margin: 24px auto 0;
    max-width: 520px;
    text-align: left;
}
.tpc-unlock-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 7px;
}
.tpc-unlock-row {
    display: flex;
    gap: 10px;
}
.tpc-unlock-row input[type="password"] {
    box-sizing: border-box;
    flex: 1 1 auto;
    min-width: 0;
    padding: 10px 12px;
}
.tpc-unlock-row .button {
    white-space: nowrap;
}
.tpc-notice {
    border-radius: 6px;
    margin: 16px 0;
    padding: 10px 12px;
}
.tpc-error {
    background: #fff0f0;
    border: 1px solid #d63638;
}
.tpc-success {
    background: #edfaef;
    border: 1px solid #00a32a;
}
.tpc-help {
    font-size: .9em;
    opacity: .75;
}
@media (max-width: 520px) {
    .tpc-gate-card { padding: 26px 20px; }
    .tpc-unlock-row { display: block; }
    .tpc-unlock-row .button { margin-top: 10px; width: 100%; }
}