/* Coal Analysis 09: microlearning G-index — all native offline, accessible SVG/UI */
.gx{--gb:#156a99;--gink:#204e66;--gline:#d6e8f1;--gpale:#eff8fe;color:var(--gink);line-height:1.6}
.gx *{box-sizing:border-box}.gx h3{color:#154761;margin:0 0 9px;font-size:1.14rem}.gx h4{margin:0 0 6px;color:#16638e}.gx p{margin:8px 0}.gx .gx-lead{font-size:1.04rem;color:#517589;line-height:1.62;max-width:900px}
.gx .gx-card{margin:14px 0;padding:20px;border:1px solid var(--gline);border-radius:18px;background:#fff;box-shadow:0 5px 18px #0a6eac08}
.gx .gx-hero{background:linear-gradient(118deg,#e5f5ff,#f7fcff 62%,#ebfaf5);border:1px solid #cce6f4;border-radius:20px;padding:23px;display:grid;grid-template-columns:1.13fr .87fr;gap:18px;align-items:center}
.gx .gx-hero h3{font-size:1.46rem;color:#175477}.gx .gx-hero svg{width:100%;max-height:230px}
.gx .gx-label{font-size:.69rem;font-weight:850;color:#2385b5;letter-spacing:.11em;text-transform:uppercase}
.gx .gx-hint{padding:12px 14px;border-left:3px solid #50a6d0;background:#edf7fc;border-radius:3px 12px 12px 3px;font-size:.85rem;color:#496e83;margin:13px 0}
.gx .gx-warn{border-left-color:#db9456;background:#fff7ec;color:#885329}.gx .gx-alert{border-left-color:#db726d;background:#fff2f1;color:#a34747}
.gx .gx-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.gx .gx-three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}
.gx .gx-tile{border:1px solid #dcebf4;border-radius:13px;padding:14px;background:#f5fbfe;min-width:0}
.gx .gx-tile b{display:block;color:#1e6f98}.gx .gx-tile small{display:block;color:#6b899a;font-size:.75rem}
.gx .gx-value{font-size:1.75rem;line-height:1.25;color:#167bb0;font-weight:850;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.gx .gx-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.gx .gx-field{display:flex;flex-direction:column;gap:6px;font-size:.83rem;font-weight:720;color:#416d84}
.gx .gx-field input,.gx .gx-field select{width:100%;padding:10px 12px;border:1px solid #bedce9;background:#f9fdff;border-radius:10px;font:inherit;font-size:1rem;color:#145275;min-height:43px}
.gx .gx-field input[type=range]{padding:4px 0;min-height:24px;accent-color:#228cbe}
.gx .gx-button{display:inline-flex;align-items:center;justify-content:center;gap:5px;border:1px solid #accfe4;background:#eaf7ff;color:#186e9b;border-radius:10px;padding:10px 14px;font:inherit;font-weight:730;cursor:pointer;min-height:41px;text-align:center}
.gx .gx-button:hover{background:#dff2fc}.gx .gx-button.active,.gx .gx-button.primary{background:#237fb2;border-color:#237fb2;color:#fff}
.gx .gx-button:focus-visible,.gx input:focus-visible,.gx select:focus-visible{outline:3px solid #6cbbe4;outline-offset:2px}
.gx .gx-buttons{display:flex;flex-wrap:wrap;gap:7px;margin:11px 0}
.gx .gx-unit{font-size:.78rem;color:#7290a2}.gx .gx-big{padding:15px;text-align:center;border:1px solid #a8d8f0;background:linear-gradient(110deg,#e5f5ff,#f8fcff);border-radius:14px}
.gx .gx-big strong{display:block;font-size:2rem;color:#187faf;font-variant-numeric:tabular-nums}.gx .gx-big small{display:block;color:#607f91}
.gx .gx-process-svg{display:block;width:100%;height:auto;max-height:265px;border:1px solid #dbebf4;background:linear-gradient(140deg,#f8fcff,#e9f6fd);border-radius:14px}
.gx .gx-particles circle{animation:gxWobble 2.6s ease-in-out infinite alternate;transform-box:fill-box;transform-origin:center}.gx .gx-flow{stroke-dasharray:8 9;animation:gxFlow 1.6s linear infinite}
.gx .gx-drum{transform-origin: 215px 105px;animation:gxRotate 7s linear infinite}.gx .gx-furnace{animation:gxGlow 1.8s ease-in-out infinite alternate}
@keyframes gxRotate{to{transform:rotate(360deg)}}@keyframes gxGlow{from{opacity:.3}to{opacity:.9}}@keyframes gxFlow{to{stroke-dashoffset:-34}}@keyframes gxWobble{to{transform:translate(1px,-2px)}}
.gx .gx-stage{border:1px solid #c5e0ee;border-radius:15px;background:#f0f9ff;padding:15px}.gx .gx-stage svg{width:100%;max-width:580px;margin:auto;display:block}
.gx .gx-number{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:34px;border-radius:10px;background:#dff2fb;color:#096b9d;font-weight:850}
.gx .gx-steplist{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:6px;margin:12px 0}
.gx .gx-step{border:1px solid #d4e6f0;border-radius:9px;padding:8px 2px;background:#f7fcff;cursor:pointer;font-weight:800;color:#537b8d;font:inherit;font-size:.8rem}
.gx .gx-step.active{background:#288ab9;color:#fff;border-color:#288ab9}
.gx .gx-progress{height:12px;overflow:hidden;border-radius:12px;background:#e1edf4;border:1px solid #d2e6ef}.gx .gx-progress span{display:block;height:100%;background:linear-gradient(90deg,#4da9d6,#1e85b9);transition:width .2s}
.gx .gx-massbar{height:46px;display:flex;border:1px solid #d3e5ec;border-radius:10px;overflow:hidden;margin:10px 0;background:#f1f6fa}
.gx .gx-massbar .gx-one{background:#53a9cb;color:#fff;display:flex;align-items:center;justify-content:center;font-size:.74rem;font-weight:760;white-space:nowrap;overflow:hidden}
.gx .gx-massbar .gx-two{background:#dab16a;color:#453620;display:flex;align-items:center;justify-content:center;font-size:.74rem;font-weight:760;white-space:nowrap;overflow:hidden}
.gx .gx-massbar .gx-threebar{background:#a0afbb;color:#263e50;display:flex;align-items:center;justify-content:center;font-size:.74rem;font-weight:760;white-space:nowrap;overflow:hidden}
.gx .gx-equation{background:#eef8fd;border-radius:12px;padding:14px;text-align:center;color:#176b93;font-size:1.12rem;font-weight:740;overflow-wrap:anywhere;margin:10px 0}.gx .gx-equation strong{color:#0b5c85}
.gx .gx-meter{background:#fff;border:1px solid #e0edf3;border-radius:12px;padding:12px}.gx .gx-meter>div:first-child{display:flex;justify-content:space-between;gap:10px;font-size:.78rem;color:#54798c;font-weight:730}
.gx .gx-meter-track{height:13px;border-radius:9px;background:#e5eef4;overflow:hidden;margin-top:7px}.gx .gx-meter-track i{display:block;height:100%;background:linear-gradient(90deg,#5cadd3,#227fac);border-radius:9px;transition:width .2s}
.gx .gx-choices{display:grid;gap:7px;margin:10px 0}.gx .gx-choice{padding:10px 12px;text-align:left;border:1px solid #d3e5ee;background:#f6fbfe;border-radius:10px;font:inherit;cursor:pointer;color:#3a6e86}.gx .gx-choice:hover{background:#e8f7fe}
.gx .gx-feedback{padding:11px 13px;margin-top:8px;border-radius:10px;background:#eaf8f2;color:#287454;font-size:.85rem}.gx .gx-feedback.bad{background:#fff0ee;color:#a1544f}
.gx .gx-equip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}.gx .gx-equipcard{background:#f8fcff;border:1px solid #daeaf4;border-radius:14px;padding:12px;text-align:left;cursor:pointer;font:inherit;color:#385e74}.gx .gx-equipcard.active{border-color:#4aaad9;background:#eaf7ff}.gx .gx-equipcard svg{height:85px;width:100%}.gx .gx-equipcard b{display:block;font-size:.83rem;color:#176b9a}
.gx .gx-equipment-note{font-size:.79rem;color:#648395;margin:6px 0}.gx .gx-pract{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
@media(max-width:760px){.gx .gx-hero{grid-template-columns:1fr;padding:17px}.gx .gx-grid,.gx .gx-three,.gx .gx-fields{grid-template-columns:1fr}.gx .gx-equip{grid-template-columns:repeat(2,minmax(0,1fr))}.gx .gx-card{padding:15px}.gx .gx-steplist{grid-template-columns:repeat(6,minmax(0,1fr))}.gx .gx-equation{font-size:.95rem}}
@media(prefers-reduced-motion:reduce){.gx *{animation:none!important;transition:none!important}}

/* v24: same-container tare recording + robust step navigation */
.gx .gx-record-box{margin-top:16px;background:#fff;border:1px solid #cfe3ee;border-radius:14px;padding:15px}
.gx .gx-record-box h4{margin:0 0 10px;color:#176b97}
.gx .gx-record-summary{margin-top:11px;padding:11px;border-radius:11px;background:#eaf6fd;color:#285d79;font-size:.86rem}
.gx .gx-record-values{display:flex;flex-wrap:wrap;gap:7px 15px;margin:8px 0}
.gx .gx-record-values span{font-variant-numeric:tabular-nums}
.gx .gx-record-error{color:#a44840;font-weight:720}
.gx .gx-button:disabled{opacity:.4;cursor:not-allowed}
.gx .gx-step:focus-visible{outline:3px solid #6cbbe4;outline-offset:2px}