.ems-callsign-duplicate-backdrop[hidden] {
    display: none !important;
}

.ems-callsign-duplicate-backdrop {
    position: fixed;
    inset: 0;
    z-index: 30100;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: 18px;
    background: rgba(0, 0, 0, 0.74);
}

.ems-callsign-duplicate-dialog {
    box-sizing: border-box;
    width: min(430px, 100%);
    padding: 18px;
    border: 2px solid #ff5c5c;
    background: #151515;
    color: #f2f2f2;
}

.ems-callsign-duplicate-dialog h2 {
    margin: 0 0 12px;
    color: #ff5c5c;
    font-size: 1.2rem;
    line-height: 1.2;
}

.ems-callsign-duplicate-message {
    margin: 0 0 18px;
    font-size: 1rem;
    line-height: 1.4;
}

.ems-callsign-duplicate-actions {
    display: flex;
    justify-content: flex-end;
}

.ems-callsign-duplicate-edit {
    min-width: 110px;
    min-height: 44px;
    padding: 8px 16px;
    border: 2px solid #ffd84d;
    background: #101010;
    color: #ffd84d;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.ems-callsign-duplicate-edit:focus-visible {
    outline: 3px solid currentColor;
    outline-offset: 3px;
}

#signupTable input.callsign-duplicate {
    border-color: #ff5c5c !important;
    outline: 2px solid #ff5c5c;
    outline-offset: 1px;
}