.bkbg-cc-app {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
}
.bkbg-cc-card {
    margin: 0 auto;
    padding: 36px 32px;
    border-radius: 16px;
    box-shadow: 0 4px 32px rgba(0,0,0,0.08);
}
/* Typography system — title uses container-chained specificity (h2 needs ≥0,2,0 in editor) */
.bkbg-cc-card .bkbg-cc-title {
    font-family: var(--bkcchk-title-font-family, inherit);
    font-size: var(--bkcchk-title-font-size-d, 26px);
    font-weight: var(--bkcchk-title-font-weight, 800);
    font-style: var(--bkcchk-title-font-style, normal);
    text-transform: var(--bkcchk-title-text-transform, none);
    text-decoration: var(--bkcchk-title-text-decoration, none);
    line-height: var(--bkcchk-title-line-height-d, 1.3);
    letter-spacing: var(--bkcchk-title-letter-spacing-d, normal);
    word-spacing: var(--bkcchk-title-word-spacing-d, normal);
    text-align: center;
    margin: 0 0 8px;
}
.bkbg-cc-card .bkbg-cc-subtitle {
    font-family: var(--bkcchk-sub-font-family, inherit);
    font-size: var(--bkcchk-sub-font-size-d, 15px);
    font-weight: var(--bkcchk-sub-font-weight, 400);
    font-style: var(--bkcchk-sub-font-style, normal);
    text-transform: var(--bkcchk-sub-text-transform, none);
    text-decoration: var(--bkcchk-sub-text-decoration, none);
    line-height: var(--bkcchk-sub-line-height-d, 1.5);
    letter-spacing: var(--bkcchk-sub-letter-spacing-d, normal);
    word-spacing: var(--bkcchk-sub-word-spacing-d, normal);
    text-align: center;
    margin: 0 0 24px;
}
.bkbg-cc-label {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    display: block;
}
/* Pickers */
.bkbg-cc-pickers {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 22px;
    border-radius: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.bkbg-cc-picker-group {
    flex: 1;
    min-width: 180px;
}
.bkbg-cc-color-row {
    display: flex;
    align-items: center;
    gap: 10px;
}
.bkbg-cc-color-input {
    width: 56px;
    height: 48px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    padding: 4px;
    background: none;
    box-shadow: 0 0 0 2px #e5e7eb;
}
.bkbg-cc-color-input::-webkit-color-swatch-wrapper { padding: 0; }
.bkbg-cc-color-input::-webkit-color-swatch { border-radius: 7px; border: none; }
.bkbg-cc-hex {
    font-size: 15px;
    font-weight: 700;
    font-family: 'SF Mono', Consolas, monospace;
    letter-spacing: 0.04em;
}
.bkbg-cc-swap {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.25s;
    flex-shrink: 0;
    align-self: flex-end;
    margin-bottom: 4px;
}
.bkbg-cc-swap:hover { transform: rotate(180deg); }
/* Preview */
.bkbg-cc-preview {
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    border: 1.5px solid #e5e7eb;
}
.bkbg-cc-preview-normal {
    font-size: 16px;
    font-weight: 400;
    margin: 0 0 8px;
    line-height: 1.5;
}
.bkbg-cc-preview-large {
    font-size: 24px;
    font-weight: 400;
    margin: 0 0 8px;
    line-height: 1.4;
}
.bkbg-cc-preview-bold {
    font-size: 14px;
    font-weight: 700;
    margin: 0;
    line-height: 1.5;
}
/* Ratio box */
.bkbg-cc-ratio-box {
    text-align: center;
    border: 2px solid;
    border-radius: 14px;
    padding: 22px;
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.bkbg-cc-ratio-val {
    font-size: 52px;
    font-weight: 900;
    line-height: 1;
}
.bkbg-cc-ratio-lbl {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.bkbg-cc-ratio-grade {
    font-size: 12px;
    font-weight: 800;
    padding: 4px 14px;
    border-radius: 99px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
/* WCAG grid */
.bkbg-cc-wcag-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.bkbg-cc-wcag-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border: 1.5px solid;
    border-radius: 10px;
}
.bkbg-cc-wcag-badge {
    font-size: 13px;
    font-weight: 900;
    padding: 5px 12px;
    border-radius: 6px;
    flex-shrink: 0;
}
.bkbg-cc-wcag-info { flex: 1; }
.bkbg-cc-wcag-sub {
    font-size: 13px;
    font-weight: 700;
    line-height: 1.3;
}
.bkbg-cc-wcag-req {
    font-size: 11px;
    font-weight: 600;
}
.bkbg-cc-wcag-status {
    font-size: 14px;
    font-weight: 800;
    flex-shrink: 0;
}
/* Suggestions */
.bkbg-cc-suggestions {
    margin-top: 16px;
}
.bkbg-cc-suggestions-title {
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 10px;
}
.bkbg-cc-sug-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.bkbg-cc-sug-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 99px;
    font-size: 12px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    font-family: inherit;
    border: 1.5px solid #e5e7eb;
    transition: transform 0.1s;
}
.bkbg-cc-sug-chip:hover { transform: scale(1.05); }
.bkbg-cc-sug-swatch {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    display: inline-block;
    border: 1.5px solid rgba(0,0,0,0.1);
}
@media (max-width: 560px) {
    .bkbg-cc-card { padding: 22px 14px; }
    .bkbg-cc-wcag-grid { grid-template-columns: 1fr; }
    .bkbg-cc-ratio-val { font-size: 36px; }
}

/* Typography responsive */
@media (max-width: 1024px) {
    .bkbg-cc-card .bkbg-cc-title {
        font-size: var(--bkcchk-title-font-size-t, var(--bkcchk-title-font-size-d, 26px));
        line-height: var(--bkcchk-title-line-height-t, var(--bkcchk-title-line-height-d, 1.3));
        letter-spacing: var(--bkcchk-title-letter-spacing-t, var(--bkcchk-title-letter-spacing-d, normal));
        word-spacing: var(--bkcchk-title-word-spacing-t, var(--bkcchk-title-word-spacing-d, normal));
    }
    .bkbg-cc-card .bkbg-cc-subtitle {
        font-size: var(--bkcchk-sub-font-size-t, var(--bkcchk-sub-font-size-d, 15px));
        line-height: var(--bkcchk-sub-line-height-t, var(--bkcchk-sub-line-height-d, 1.5));
        letter-spacing: var(--bkcchk-sub-letter-spacing-t, var(--bkcchk-sub-letter-spacing-d, normal));
        word-spacing: var(--bkcchk-sub-word-spacing-t, var(--bkcchk-sub-word-spacing-d, normal));
    }
}
@media (max-width: 767px) {
    .bkbg-cc-card .bkbg-cc-title {
        font-size: var(--bkcchk-title-font-size-m, var(--bkcchk-title-font-size-t, var(--bkcchk-title-font-size-d, 26px)));
        line-height: var(--bkcchk-title-line-height-m, var(--bkcchk-title-line-height-t, var(--bkcchk-title-line-height-d, 1.3)));
        letter-spacing: var(--bkcchk-title-letter-spacing-m, var(--bkcchk-title-letter-spacing-t, var(--bkcchk-title-letter-spacing-d, normal)));
        word-spacing: var(--bkcchk-title-word-spacing-m, var(--bkcchk-title-word-spacing-t, var(--bkcchk-title-word-spacing-d, normal)));
    }
    .bkbg-cc-card .bkbg-cc-subtitle {
        font-size: var(--bkcchk-sub-font-size-m, var(--bkcchk-sub-font-size-t, var(--bkcchk-sub-font-size-d, 15px)));
        line-height: var(--bkcchk-sub-line-height-m, var(--bkcchk-sub-line-height-t, var(--bkcchk-sub-line-height-d, 1.5)));
        letter-spacing: var(--bkcchk-sub-letter-spacing-m, var(--bkcchk-sub-letter-spacing-t, var(--bkcchk-sub-letter-spacing-d, normal)));
        word-spacing: var(--bkcchk-sub-word-spacing-m, var(--bkcchk-sub-word-spacing-t, var(--bkcchk-sub-word-spacing-d, normal)));
    }
}