.bkbg-rpk-app *,
.bkbg-rpk-editor * {
    box-sizing: border-box;
}

.bkbg-rpk-card {
    box-shadow: 0 4px 24px rgba(0,0,0,0.09);
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.bkbg-rpk-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid #e5e7eb;
    font-size: 14px;
    font-family: monospace;
    resize: vertical;
    outline: none;
    transition: border-color .15s;
}
.bkbg-rpk-textarea:focus {
    border-color: inherit;
}

.bkbg-rpk-btn {
    width: 100%;
    padding: 14px;
    border: none;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    font-family: inherit;
    transition: background .15s, opacity .15s;
    margin-bottom: 20px;
}
.bkbg-rpk-btn:disabled {
    opacity: .6;
    cursor: not-allowed;
}

.bkbg-rpk-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.bkbg-rpk-chip {
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    cursor: default;
    transition: background .1s, color .1s, transform .1s;
}

.bkbg-rpk-chip.bkbg-rpk-highlight {
    transform: scale(1.06);
}

.bkbg-rpk-chip.bkbg-rpk-winner {
    transform: scale(1.1);
    font-weight: 700;
}

.bkbg-rpk-winner-box {
    text-align: center;
    margin-bottom: 16px;
    animation: bkbg-rpk-pop .3s ease;
}

@keyframes bkbg-rpk-pop {
    0%   { transform: scale(.8); opacity: 0; }
    60%  { transform: scale(1.08); }
    100% { transform: scale(1); opacity: 1; }
}

/* typography */
.bkbg-rpk-title {
    font-family: var(--bkrpk-tt-font-family, inherit);
    font-size: var(--bkrpk-tt-font-size-d, 28px);
    font-weight: var(--bkrpk-tt-font-weight, 700);
    font-style: var(--bkrpk-tt-font-style, normal);
    text-decoration: var(--bkrpk-tt-text-decoration, none);
    text-transform: var(--bkrpk-tt-text-transform, none);
    line-height: var(--bkrpk-tt-line-height-d, 1.3);
    letter-spacing: var(--bkrpk-tt-letter-spacing-d, normal);
    word-spacing: var(--bkrpk-tt-word-spacing-d, normal);
}
.bkbg-rpk-subtitle {
    font-family: var(--bkrpk-st-font-family, inherit);
    font-size: var(--bkrpk-st-font-size-d, 15px);
    font-weight: var(--bkrpk-st-font-weight, 400);
    font-style: var(--bkrpk-st-font-style, normal);
    text-decoration: var(--bkrpk-st-text-decoration, none);
    text-transform: var(--bkrpk-st-text-transform, none);
    line-height: var(--bkrpk-st-line-height-d, 1.5);
    letter-spacing: var(--bkrpk-st-letter-spacing-d, normal);
    word-spacing: var(--bkrpk-st-word-spacing-d, normal);
}
.bkbg-rpk-winner-text {
    font-family: var(--bkrpk-wn-font-family, inherit);
    font-size: var(--bkrpk-wn-font-size-d, 32px);
    font-weight: var(--bkrpk-wn-font-weight, 800);
    font-style: var(--bkrpk-wn-font-style, normal);
    text-decoration: var(--bkrpk-wn-text-decoration, none);
    text-transform: var(--bkrpk-wn-text-transform, none);
    line-height: var(--bkrpk-wn-line-height-d, 1.2);
    letter-spacing: var(--bkrpk-wn-letter-spacing-d, normal);
    word-spacing: var(--bkrpk-wn-word-spacing-d, normal);
}

@media (max-width: 1024px) {
    .bkbg-rpk-title {
        font-size: var(--bkrpk-tt-font-size-t, var(--bkrpk-tt-font-size-d, 28px));
        line-height: var(--bkrpk-tt-line-height-t, var(--bkrpk-tt-line-height-d, 1.3));
        letter-spacing: var(--bkrpk-tt-letter-spacing-t, var(--bkrpk-tt-letter-spacing-d, normal));
        word-spacing: var(--bkrpk-tt-word-spacing-t, var(--bkrpk-tt-word-spacing-d, normal));
    }
    .bkbg-rpk-subtitle {
        font-size: var(--bkrpk-st-font-size-t, var(--bkrpk-st-font-size-d, 15px));
        line-height: var(--bkrpk-st-line-height-t, var(--bkrpk-st-line-height-d, 1.5));
        letter-spacing: var(--bkrpk-st-letter-spacing-t, var(--bkrpk-st-letter-spacing-d, normal));
        word-spacing: var(--bkrpk-st-word-spacing-t, var(--bkrpk-st-word-spacing-d, normal));
    }
    .bkbg-rpk-winner-text {
        font-size: var(--bkrpk-wn-font-size-t, var(--bkrpk-wn-font-size-d, 32px));
        line-height: var(--bkrpk-wn-line-height-t, var(--bkrpk-wn-line-height-d, 1.2));
        letter-spacing: var(--bkrpk-wn-letter-spacing-t, var(--bkrpk-wn-letter-spacing-d, normal));
        word-spacing: var(--bkrpk-wn-word-spacing-t, var(--bkrpk-wn-word-spacing-d, normal));
    }
}
@media (max-width: 767px) {
    .bkbg-rpk-title {
        font-size: var(--bkrpk-tt-font-size-m, var(--bkrpk-tt-font-size-t, var(--bkrpk-tt-font-size-d, 28px)));
        line-height: var(--bkrpk-tt-line-height-m, var(--bkrpk-tt-line-height-t, var(--bkrpk-tt-line-height-d, 1.3)));
        letter-spacing: var(--bkrpk-tt-letter-spacing-m, var(--bkrpk-tt-letter-spacing-t, var(--bkrpk-tt-letter-spacing-d, normal)));
        word-spacing: var(--bkrpk-tt-word-spacing-m, var(--bkrpk-tt-word-spacing-t, var(--bkrpk-tt-word-spacing-d, normal)));
    }
    .bkbg-rpk-subtitle {
        font-size: var(--bkrpk-st-font-size-m, var(--bkrpk-st-font-size-t, var(--bkrpk-st-font-size-d, 15px)));
        line-height: var(--bkrpk-st-line-height-m, var(--bkrpk-st-line-height-t, var(--bkrpk-st-line-height-d, 1.5)));
        letter-spacing: var(--bkrpk-st-letter-spacing-m, var(--bkrpk-st-letter-spacing-t, var(--bkrpk-st-letter-spacing-d, normal)));
        word-spacing: var(--bkrpk-st-word-spacing-m, var(--bkrpk-st-word-spacing-t, var(--bkrpk-st-word-spacing-d, normal)));
    }
    .bkbg-rpk-winner-text {
        font-size: var(--bkrpk-wn-font-size-m, var(--bkrpk-wn-font-size-t, var(--bkrpk-wn-font-size-d, 32px)));
        line-height: var(--bkrpk-wn-line-height-m, var(--bkrpk-wn-line-height-t, var(--bkrpk-wn-line-height-d, 1.2)));
        letter-spacing: var(--bkrpk-wn-letter-spacing-m, var(--bkrpk-wn-letter-spacing-t, var(--bkrpk-wn-letter-spacing-d, normal)));
        word-spacing: var(--bkrpk-wn-word-spacing-m, var(--bkrpk-wn-word-spacing-t, var(--bkrpk-wn-word-spacing-d, normal)));
    }
}

.bkbg-rpk-history {
    padding: 14px 16px;
    border-radius: 8px;
}

.bkbg-rpk-history-label {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    margin-bottom: 8px;
}

.bkbg-rpk-history-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.bkbg-rpk-history-chip {
    padding: 4px 10px;
    background: #ffffff;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid #e5e7eb;
}