/* ============================================================
   Step Cards — style.css
   Prefix: bkbg-sc-
   ============================================================ */

.bkbg-sc-wrap {
    box-sizing: border-box;
    width: 100%;
    padding: var(--bkbg-sc-pt, 0px) 0 var(--bkbg-sc-pb, 0px);
}

/* ============================================================
   Layout: Horizontal (default flex row)
   ============================================================ */
.bkbg-sc-layout--horizontal .bkbg-sc-steps {
    display: grid;
    grid-template-columns: repeat(var(--bkbg-sc-cols, 4), 1fr);
    gap: var(--bkbg-sc-gap, 24px);
}

/* ============================================================
   Layout: Grid (wrapping grid)
   ============================================================ */
.bkbg-sc-layout--grid .bkbg-sc-steps {
    display: grid;
    grid-template-columns: repeat(var(--bkbg-sc-cols, 4), 1fr);
    gap: var(--bkbg-sc-gap, 24px);
}

/* ============================================================
   Layout: Vertical stack
   ============================================================ */
.bkbg-sc-layout--vertical .bkbg-sc-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.bkbg-sc-layout--vertical .bkbg-sc-step {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 0 24px;
}

.bkbg-sc-layout--vertical .bkbg-sc-step-header {
    flex-direction: column;
    align-items: center;
    grid-column: 1;
    grid-row: 1 / 3;
}

.bkbg-sc-layout--vertical .bkbg-sc-connector {
    width: 2px;
    height: 100%;
    min-height: 32px;
    background: var(--bkbg-sc-connector, #e2e8f0);
    flex: 1;
    margin: 4px auto 0;
}

.bkbg-sc-layout--vertical .bkbg-sc-step-content {
    padding-bottom: 32px;
    grid-column: 2;
}

/* ============================================================
   Step base
   ============================================================ */
.bkbg-sc-step {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
}

.bkbg-sc-step-header {
    display: flex;
    align-items: center;
    gap: 0;
    position: relative;
}

/* Connector line (horizontal between steps) */
.bkbg-sc-connector {
    flex: 1;
    height: 2px;
    background: var(--bkbg-sc-connector, #e2e8f0);
    position: relative;
    margin: 0 8px;
}
.bkbg-sc-connector::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    width: 0; height: 0;
    border-left: 6px solid var(--bkbg-sc-connector, #e2e8f0);
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
}

/* ============================================================
   Step number — style variants
   ============================================================ */
.bkbg-sc-num {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: var(--bkbg-sc-num-sz, 44px);
    height: var(--bkbg-sc-num-sz, 44px);
    font-weight: 900;
    line-height: 1;
    transition: transform .2s;
}
.bkbg-sc-step:hover .bkbg-sc-num { transform: scale(1.05); }

/* circle filled */
.bkbg-sc-num--circle {
    border-radius: 50%;
    background: var(--bkbg-sc-num-bg, #6c3fb5);
    color: var(--bkbg-sc-num-c, #ffffff);
    font-size: calc(var(--bkbg-sc-num-sz, 44px) * .4);
}

/* circle outline */
.bkbg-sc-num--circle-outline {
    border-radius: 50%;
    border: 2px solid var(--bkbg-sc-num-bg, #6c3fb5);
    color: var(--bkbg-sc-num-bg, #6c3fb5);
    background: transparent;
    font-size: calc(var(--bkbg-sc-num-sz, 44px) * .4);
}

/* square */
.bkbg-sc-num--square {
    border-radius: 10px;
    background: var(--bkbg-sc-num-bg, #6c3fb5);
    color: var(--bkbg-sc-num-c, #ffffff);
    font-size: calc(var(--bkbg-sc-num-sz, 44px) * .4);
}

/* large background number */
.bkbg-sc-num--large-bg {
    width: auto;
    height: auto;
    background: transparent;
    color: color-mix(in srgb, var(--bkbg-sc-num-bg, #6c3fb5) 12%, transparent);
    font-size: calc(var(--bkbg-sc-num-sz, 44px) * 1.8);
    font-weight: 900;
    letter-spacing: -.06em;
    line-height: .8;
}

/* Icon in number circle */
.bkbg-sc-num-icon {
    font-size: var(--bkbg-sc-icon-sz, 22px);
    color: inherit;
    width: var(--bkbg-sc-icon-sz, 22px);
    height: var(--bkbg-sc-icon-sz, 22px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.bkbg-sc-num-digit {
    font-size: inherit;
    font-weight: inherit;
    color: inherit;
    line-height: 1;
}

/* ============================================================
   Step content
   ============================================================ */
.bkbg-sc-step-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.bkbg-sc-step-content h3.bkbg-sc-title {
    margin: 0;
    font-family: var(--bkbg-sc-tt-font-family, inherit);
    font-size: var(--bkbg-sc-tt-font-size-d, var(--bkbg-sc-title-sz, 18px));
    font-weight: var(--bkbg-sc-tt-font-weight, var(--bkbg-sc-title-w, 700));
    font-style: var(--bkbg-sc-tt-font-style, normal);
    text-decoration: var(--bkbg-sc-tt-text-decoration, none);
    text-transform: var(--bkbg-sc-tt-text-transform, none);
    line-height: var(--bkbg-sc-tt-line-height-d, var(--bkbg-sc-title-lh, 1.3));
    letter-spacing: var(--bkbg-sc-tt-letter-spacing-d, normal);
    word-spacing: var(--bkbg-sc-tt-word-spacing-d, normal);
    color: var(--bkbg-sc-title-c, #0f172a);
}

.bkbg-sc-body {
    margin: 0;
    font-family: var(--bkbg-sc-bd-font-family, inherit);
    font-size: var(--bkbg-sc-bd-font-size-d, var(--bkbg-sc-body-sz, 14px));
    font-weight: var(--bkbg-sc-bd-font-weight, 400);
    font-style: var(--bkbg-sc-bd-font-style, normal);
    text-decoration: var(--bkbg-sc-bd-text-decoration, none);
    text-transform: var(--bkbg-sc-bd-text-transform, none);
    line-height: var(--bkbg-sc-bd-line-height-d, var(--bkbg-sc-body-lh, 1.65));
    letter-spacing: var(--bkbg-sc-bd-letter-spacing-d, normal);
    word-spacing: var(--bkbg-sc-bd-word-spacing-d, normal);
    color: var(--bkbg-sc-body-c, #64748b);
}

/* ── Responsive Typography ── */
@media (max-width: 1024px) {
    .bkbg-sc-step-content h3.bkbg-sc-title {
        font-size: var(--bkbg-sc-tt-font-size-t, var(--bkbg-sc-tt-font-size-d, var(--bkbg-sc-title-sz, 18px)));
        line-height: var(--bkbg-sc-tt-line-height-t, var(--bkbg-sc-tt-line-height-d, var(--bkbg-sc-title-lh, 1.3)));
        letter-spacing: var(--bkbg-sc-tt-letter-spacing-t, var(--bkbg-sc-tt-letter-spacing-d, normal));
        word-spacing: var(--bkbg-sc-tt-word-spacing-t, var(--bkbg-sc-tt-word-spacing-d, normal));
    }
    .bkbg-sc-body {
        font-size: var(--bkbg-sc-bd-font-size-t, var(--bkbg-sc-bd-font-size-d, var(--bkbg-sc-body-sz, 14px)));
        line-height: var(--bkbg-sc-bd-line-height-t, var(--bkbg-sc-bd-line-height-d, var(--bkbg-sc-body-lh, 1.65)));
        letter-spacing: var(--bkbg-sc-bd-letter-spacing-t, var(--bkbg-sc-bd-letter-spacing-d, normal));
        word-spacing: var(--bkbg-sc-bd-word-spacing-t, var(--bkbg-sc-bd-word-spacing-d, normal));
    }
}
@media (max-width: 767px) {
    .bkbg-sc-step-content h3.bkbg-sc-title {
        font-size: var(--bkbg-sc-tt-font-size-m, var(--bkbg-sc-tt-font-size-t, var(--bkbg-sc-tt-font-size-d, var(--bkbg-sc-title-sz, 18px))));
        line-height: var(--bkbg-sc-tt-line-height-m, var(--bkbg-sc-tt-line-height-t, var(--bkbg-sc-tt-line-height-d, var(--bkbg-sc-title-lh, 1.3))));
        letter-spacing: var(--bkbg-sc-tt-letter-spacing-m, var(--bkbg-sc-tt-letter-spacing-t, var(--bkbg-sc-tt-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-sc-tt-word-spacing-m, var(--bkbg-sc-tt-word-spacing-t, var(--bkbg-sc-tt-word-spacing-d, normal)));
    }
    .bkbg-sc-body {
        font-size: var(--bkbg-sc-bd-font-size-m, var(--bkbg-sc-bd-font-size-t, var(--bkbg-sc-bd-font-size-d, var(--bkbg-sc-body-sz, 14px))));
        line-height: var(--bkbg-sc-bd-line-height-m, var(--bkbg-sc-bd-line-height-t, var(--bkbg-sc-bd-line-height-d, var(--bkbg-sc-body-lh, 1.65))));
        letter-spacing: var(--bkbg-sc-bd-letter-spacing-m, var(--bkbg-sc-bd-letter-spacing-t, var(--bkbg-sc-bd-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-sc-bd-word-spacing-m, var(--bkbg-sc-bd-word-spacing-t, var(--bkbg-sc-bd-word-spacing-d, normal)));
    }
}

/* ============================================================
   Card Style Variants
   ============================================================ */

/* card (default) */
.bkbg-sc-card-style--card {
    background: var(--bkbg-sc-card-bg, #ffffff);
    border-radius: var(--bkbg-sc-card-r, 16px);
    padding: var(--bkbg-sc-card-p, 28px);
    box-shadow: 0 2px 8px rgba(0,0,0,.06), 0 0 0 1px rgba(0,0,0,.04);
    transition: box-shadow .18s, transform .18s;
}
.bkbg-sc-card-style--card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 32px rgba(0,0,0,.09);
}

/* bordered */
.bkbg-sc-card-style--bordered {
    border: 1px solid var(--bkbg-sc-card-border, #e2e8f0);
    border-radius: var(--bkbg-sc-card-r, 16px);
    padding: var(--bkbg-sc-card-p, 28px);
    background: var(--bkbg-sc-card-bg, #ffffff);
    transition: border-color .18s;
}
.bkbg-sc-card-style--bordered:hover { border-color: var(--bkbg-sc-accent, #6c3fb5); }

/* flat */
.bkbg-sc-card-style--flat {
    padding: var(--bkbg-sc-card-p, 28px) 0;
}

/* ghost */
.bkbg-sc-card-style--ghost {
    background: color-mix(in srgb, var(--bkbg-sc-num-bg, #6c3fb5) 5%, transparent);
    border-radius: var(--bkbg-sc-card-r, 16px);
    padding: var(--bkbg-sc-card-p, 28px);
    border: 1px dashed color-mix(in srgb, var(--bkbg-sc-num-bg, #6c3fb5) 30%, transparent);
    transition: background .18s;
}
.bkbg-sc-card-style--ghost:hover { background: color-mix(in srgb, var(--bkbg-sc-num-bg, #6c3fb5) 10%, transparent); }

/* Inspector helpers */
.bkbg-sc-step-ctrl { border-bottom: 1px solid #e2e8f0; padding-bottom: 12px; margin-bottom: 12px; }
.bkbg-sc-step-head { display: flex; align-items: center; gap: 8px; cursor: pointer; padding: 4px 0; }
.bkbg-sc-step-num { background: var(--bkbg-sc-num-bg, #6c3fb5); color: #fff; border-radius: 50%; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 800; flex-shrink: 0; }
.bkbg-sc-step-actions { display: flex; gap: 4px; margin-top: 8px; }

/* Responsive */
@media (max-width: 900px) {
    .bkbg-sc-layout--horizontal .bkbg-sc-steps,
    .bkbg-sc-layout--grid .bkbg-sc-steps { grid-template-columns: repeat(2, 1fr); }
    .bkbg-sc-connector { display: none; }
}
@media (max-width: 520px) {
    .bkbg-sc-layout--horizontal .bkbg-sc-steps,
    .bkbg-sc-layout--grid .bkbg-sc-steps { grid-template-columns: 1fr; }
    .bkbg-sc-layout--vertical .bkbg-sc-step { grid-template-columns: 48px 1fr; }
}