.cp-payment-key {
    margin: 24px auto;
    max-width: 620px;
    padding: 20px 24px;
    background: #212121;
    border: 1px solid #FFDD2D7A;
    border-radius: 16px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, .25);
    font-family: "Roboto", sans-serif;
    line-height: 1.4;
    text-align: left;
}
@keyframes cp-key-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.cp-payment-key:not([hidden]) { animation: cp-key-fade-in .45s ease-out; }
.cp-payment-key[hidden], .cp-payment-key [hidden] { display: none !important; }

.cp-payment-key [data-key-header] { display: flex; align-items: center; margin-bottom: 14px; }
.cp-payment-key [data-key-label] {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: rgba(236, 241, 247, .85);
}

.cp-payment-key [data-key-result] { width: 100%; }
.cp-payment-key [data-key-box] {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-width: 0;
    background: linear-gradient(135deg, #1c1c1e, #2c2c2e);
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: 10px;
    padding: 6px 6px 6px 16px;
}
.cp-payment-key [data-key-icon] {
    flex: 0 0 auto;
    width: 18px;
    height: 18px;
    fill: none;
    stroke: #FFDD2D;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.cp-payment-key [data-key-value] {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 15px;
    color: #FFDD2D;
    background: transparent;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    flex: 1 1 auto;
    user-select: all;
}
.cp-payment-key button[data-key-copy] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 10px 16px;
    border: none;
    border-radius: 10px;
    background: #FFDD2D;
    color: #000;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color .2s, transform .15s;
}
.cp-payment-key button[data-key-copy]:hover,
.cp-payment-key button[data-key-copy]:focus { background: #e1c326; }
.cp-payment-key button[data-key-copy]:focus-visible { outline: 2px solid #FFDD2D; outline-offset: 2px; }
.cp-payment-key button[data-key-copy]:active { transform: scale(.96); }
.cp-payment-key button[data-key-copy] svg { width: 18px; height: 18px; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.cp-payment-key [data-copy-check] { display: none; }
.cp-payment-key [data-copied="true"] [data-copy-sheets] { display: none; }
.cp-payment-key [data-copied="true"] [data-copy-check] { display: block; }

.cp-payment-key [data-key-caption] {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin: 14px 0 0;
    font-size: 13px;
    line-height: 1.4;
    color: #9ca3af;
}
.cp-payment-key [data-caption-icon] {
    flex: 0 0 auto;
    width: 16px;
    height: 16px;
    margin-top: 1px;
    fill: none;
    stroke: #9ca3af;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.cp-payment-key [data-key-status] { color: #9ca3af; font-size: 13px; font-weight: 400; margin: 8px 0 0; }
.cp-payment-key [data-key-status]:empty { display: none; }

.cp-payment-key [data-key-qr] {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, .08);
}
.cp-payment-key [data-key-qr-code] {
    width: 148px;
    height: 148px;
    padding: 5px;
    background: #fff;
    border-radius: 10px;
    line-height: 0;
}
.cp-payment-key [data-key-qr-code] svg { width: 100%; height: 100%; display: block; }

@media (max-width: 767px) {
    .cp-payment-key { padding: 16px 16px; margin: 24px 12px; }
    .cp-payment-key [data-key-box] { padding: 4px 4px 4px 12px; }
    .cp-payment-key [data-key-value] { font-size: 13px; }
    .cp-payment-key button[data-key-copy] [data-key-copy-label] { display: none; }
    .cp-payment-key button[data-key-copy] { padding: 9px; border-radius: 9px; }
    .cp-payment-key [data-key-qr-code] { width: 128px; height: 128px; padding: 4px; }
}
@media (prefers-reduced-motion: reduce) {
    .cp-payment-key button[data-key-copy] { transition: none; }
    .cp-payment-key:not([hidden]) { animation: none; }
}