.tank-page{max-width:1080px;margin:auto;padding:42px 24px 64px}.tank-page h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.12;max-width:760px;margin:16px 0}.tank-page p{line-height:1.65;max-width:760px}.tank-intro{color:#bdccda;font-size:1.12rem}.tank-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:32px 0}.tank-card{padding:28px;border:1px solid #304658;border-radius:24px;background:#102231}.tank-card h2{margin-top:0}.tank-card label{display:block;font-weight:650;margin-top:20px}.tank-card input,.tank-card select{display:block;width:100%;box-sizing:border-box;min-height:48px;margin:8px 0;color:#f3f8ff;background:#091a28;border:1px solid #536b7e;border-radius:10px;padding:12px;font:inherit;font-size:16px}.tank-card input:focus,.tank-card select:focus{outline:3px solid #2dd4bf;outline-offset:2px}.tank-card small{color:#bccdda;line-height:1.5;display:block}.tank-cost{font-size:clamp(2.8rem,8vw,4rem);font-weight:800;color:#69ebd5;line-height:1.2;margin:20px 0 8px;overflow-wrap:anywhere}.tank-gauge{height:18px;border:1px solid #546f80;border-radius:30px;overflow:hidden;background:#203545;margin-top:32px}.tank-gauge span{display:block;height:100%;background:#2dd4bf;transition:width .25s ease}.tank-disclaimer{font-size:.9rem;color:#bdccda}.tank-page a{color:#8ceadc}.tank-page .btn{margin-top:14px}.tank-page [hidden]{display:none!important}@media(max-width:680px){.tank-grid{grid-template-columns:1fr}.tank-page{padding:28px 18px 48px}.tank-card{padding:22px}}@media(prefers-reduced-motion:reduce){.tank-gauge span{transition:none}}

.tank-averages{border:0;margin:22px 0 0;padding:0;min-width:0}.tank-averages legend{font-weight:650}.tank-average-buttons{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.tank-average-buttons button{min-height:44px;padding:10px 12px;border-radius:12px;border:1px solid #527b82;background:#102f3b;color:#d6fff7;font:inherit;font-size:.9rem;text-align:left;cursor:pointer}.tank-average-buttons button:hover:not(:disabled){border-color:#2dd4bf;background:#164652}.tank-average-buttons button:focus-visible{outline:3px solid #2dd4bf;outline-offset:2px}.tank-average-buttons button:disabled{opacity:.55;cursor:default}