/* Age of Oil community-cost static reference: scoped to existing guide. */
.blackbar-age-oil-cost-card{min-width:0;overflow:hidden;scroll-margin-top:110px}
.blackbar-age-oil-cost-card h3{margin:.5rem 0 1rem;color:#dbf7ff}
.blackbar-age-oil-cost-card .bb-oil-cost-big{font-size:clamp(1.6rem,4vw,2.65rem);font-weight:800;color:#ffc758;margin:1rem 0;padding:.9rem 1rem;background:#071d31;border:1px solid #3c7288;border-radius:12px;font-variant-numeric:tabular-nums}
.blackbar-age-oil-cost-card .bb-oil-cost-big span{display:block;color:#c6d6e2;font-size:.85rem;font-weight:400;line-height:1.5;margin-top:.3rem}
.blackbar-age-oil-cost-card .bb-oil-cost-scroll{overflow-x:auto;max-width:100%;border-radius:10px;border:1px solid #3d6274;scrollbar-width:thin}
.blackbar-age-oil-cost-card .bb-oil-cost-scroll:focus-visible{outline:3px solid #55d7ff;outline-offset:3px}
.blackbar-age-oil-cost-card .bb-oil-cost-table{width:100%;min-width:620px;border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:.92rem}
.blackbar-age-oil-cost-card th,.blackbar-age-oil-cost-card td{padding:.72rem .85rem;text-align:left;white-space:nowrap;border-bottom:1px solid #244459}
.blackbar-age-oil-cost-card th{background:#123951;color:#c8eeff;font-weight:700}
.blackbar-age-oil-cost-card td:last-child{color:#ffd477;font-weight:700}
.blackbar-age-oil-cost-card tr:nth-child(even) td{background:rgba(32,65,90,.2)}
.blackbar-age-oil-cost-card .bb-oil-cost-details{margin:1.2rem 0}
.blackbar-age-oil-cost-card .bb-oil-cost-details summary{font-weight:700;cursor:pointer;padding:.75rem;background:#102d46;border-radius:9px}
.blackbar-age-oil-cost-card .bb-oil-cost-details .bb-oil-cost-scroll{margin-top:.75rem}
.blackbar-age-oil-cost-card .bb-oil-cost-warning{line-height:1.6;color:#f6d29e;font-size:.95rem}
.blackbar-age-oil-cost-card .bb-oil-cost-notes{font-size:.92rem;line-height:1.6;color:#c9d7e2}
.blackbar-age-oil-cost-card .bb-oil-cost-visual{max-width:620px;margin:1rem auto 0}
.blackbar-age-oil-cost-card .bb-oil-cost-visual img{max-width:100%;height:auto;display:block;border-radius:12px}
@media(max-width:640px){.blackbar-age-oil-cost-card th,.blackbar-age-oil-cost-card td{padding:.62rem .7rem}}

.blackbar-age-oil-cost-card .bb-oil-cost-source{font-size:.82rem;color:#b8cddc;line-height:1.5}

/* Preserve the 1024 × 1855 image's intrinsic ratio; v114 used 2:3. */
.blackbar-age-oil-tech-tree-card .furnace-guide-link img{aspect-ratio:auto}

/* Targeted desktop refinement: retain sideways scrolling on mobile. */
@media (min-width:800px){
 .blackbar-age-oil-cost-card{grid-column:1 / -1}
 .blackbar-age-oil-cost-card .bb-oil-cost-table{min-width:0;table-layout:auto}
 .blackbar-age-oil-cost-card th,.blackbar-age-oil-cost-card td{white-space:normal;overflow-wrap:break-word}
 .blackbar-age-oil-cost-card th:not(:first-child),.blackbar-age-oil-cost-card td:not(:first-child){font-variant-numeric:tabular-nums}
}
.blackbar-age-oil-cost-card .bb-oil-cost-swipe-hint{display:none;color:#9bd9e9;font-size:.81rem;line-height:1.45;margin:.65rem 0 .3rem}
@media(max-width:799px){.blackbar-age-oil-cost-card .bb-oil-cost-swipe-hint{display:block}}