/* ── Percentage Calculator Block ─────────────────────────────────────── */
.bkbg-pct-app {
    font-family: inherit;
    box-sizing: border-box;
    width: 100%;
}

.bkbg-pct-loading {
    text-align: center;
    color: #9ca3af;
    padding: 40px 0;
    margin: 0;
}

.bkbg-pct-card {
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    box-sizing: border-box;
}

/* ── Title / Subtitle ─────────────────────────────────────────────────── */
.bkbg-pct-title {
    text-align: center;
    margin-top: 0;
    margin-bottom: 8px;
    font-family: var(--bkbg-pct-title-ff, inherit);
    font-size: var(--bkbg-pct-title-fs, 26px);
    font-weight: var(--bkbg-pct-title-fw, 800);
    font-style: var(--bkbg-pct-title-fst, normal);
    text-decoration: var(--bkbg-pct-title-td, none);
    text-transform: var(--bkbg-pct-title-tt, none);
    letter-spacing: var(--bkbg-pct-title-ls, normal);
    line-height: var(--bkbg-pct-title-lh, 1.2);
}

.bkbg-pct-subtitle {
    text-align: center;
    margin-top: 0;
    margin-bottom: 24px;
    font-family: var(--bkbg-pct-subtitle-ff, inherit);
    font-size: var(--bkbg-pct-subtitle-fs, 14px);
    font-weight: var(--bkbg-pct-subtitle-fw, 400);
    font-style: var(--bkbg-pct-subtitle-fst, normal);
    text-decoration: var(--bkbg-pct-subtitle-td, none);
    text-transform: var(--bkbg-pct-subtitle-tt, none);
    letter-spacing: var(--bkbg-pct-subtitle-ls, normal);
    line-height: var(--bkbg-pct-subtitle-lh, 1.5);
}

/* ── Tabs ─────────────────────────────────────────────────────────────── */
.bkbg-pct-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.bkbg-pct-tab {
    flex: 1;
    padding: 9px 16px;
    border: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: background 0.15s, color 0.15s;
    font-family: inherit;
}

/* ── Input row ────────────────────────────────────────────────────────── */
.bkbg-pct-row {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.bkbg-pct-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.bkbg-pct-field.grow {
    flex: 2;
    min-width: 100px;
}

.bkbg-pct-field.shrink {
    flex: 1;
    min-width: 60px;
}

.bkbg-pct-label {
    font-size: 12px;
    font-weight: 600;
}

.bkbg-pct-input {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid #e5e7eb;
    font-size: 16px;
    box-sizing: border-box;
    outline: none;
    font-family: inherit;
    transition: border-color 0.15s;
}

.bkbg-pct-input:focus {
    border-color: #6c3fb5;
}

/* Hide number spin buttons */
.bkbg-pct-input::-webkit-outer-spin-button,
.bkbg-pct-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.bkbg-pct-input[type=number] {
    -moz-appearance: textfield;
    appearance: textfield;
}

.bkbg-pct-sep {
    font-weight: 700;
    color: #9ca3af;
    font-size: 18px;
    padding-bottom: 12px;
    flex-shrink: 0;
    white-space: nowrap;
}

/* ── Result box ───────────────────────────────────────────────────────── */
.bkbg-pct-result {
    border-radius: 0;
    padding: 24px;
    text-align: center;
}

.bkbg-pct-result-formula {
    font-size: 12px;
    color: #9ca3af;
    margin-bottom: 6px;
}

.bkbg-pct-result-num {
    font-family: var(--bkbg-pct-result-ff, inherit);
    font-size: var(--bkbg-pct-result-fs, 48px);
    font-weight: var(--bkbg-pct-result-fw, 800);
    font-style: var(--bkbg-pct-result-fst, normal);
    text-decoration: var(--bkbg-pct-result-td, none);
    text-transform: var(--bkbg-pct-result-tt, none);
    letter-spacing: var(--bkbg-pct-result-ls, normal);
    line-height: var(--bkbg-pct-result-lh, 1.1);
}

.bkbg-pct-result-dir {
    font-size: 13px;
    font-weight: 600;
    margin-top: 6px;
}

/* Heading specificity */
.bkbg-pct-app h2.bkbg-pct-title,
.bkbg-pct-app .bkbg-pct-title {
    font-size: var(--bkbg-pct-title-fs, 26px);
    font-weight: var(--bkbg-pct-title-fw, 800);
}

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .bkbg-pct-title { font-size: var(--bkbg-pct-title-fs-tab, var(--bkbg-pct-title-fs, 26px)); }
    .bkbg-pct-app h2.bkbg-pct-title,
    .bkbg-pct-app .bkbg-pct-title { font-size: var(--bkbg-pct-title-fs-tab, var(--bkbg-pct-title-fs, 26px)); }
    .bkbg-pct-subtitle { font-size: var(--bkbg-pct-subtitle-fs-tab, var(--bkbg-pct-subtitle-fs, 14px)); }
    .bkbg-pct-result-num { font-size: var(--bkbg-pct-result-fs-tab, var(--bkbg-pct-result-fs, 48px)); }
}
@media (max-width: 767px) {
    .bkbg-pct-title { font-size: var(--bkbg-pct-title-fs-mob, var(--bkbg-pct-title-fs-tab, var(--bkbg-pct-title-fs, 26px))); }
    .bkbg-pct-app h2.bkbg-pct-title,
    .bkbg-pct-app .bkbg-pct-title { font-size: var(--bkbg-pct-title-fs-mob, var(--bkbg-pct-title-fs-tab, var(--bkbg-pct-title-fs, 26px))); }
    .bkbg-pct-subtitle { font-size: var(--bkbg-pct-subtitle-fs-mob, var(--bkbg-pct-subtitle-fs-tab, var(--bkbg-pct-subtitle-fs, 14px))); }
    .bkbg-pct-result-num { font-size: var(--bkbg-pct-result-fs-mob, var(--bkbg-pct-result-fs-tab, var(--bkbg-pct-result-fs, 48px))); }
}
@media (max-width: 480px) {
    .bkbg-pct-card {
        padding-left: 20px !important;
        padding-right: 20px !important;
    }
}