.fractions-hero{min-height:440px}.fractions-hero h1{font-size:clamp(54px,6.8vw,88px);line-height:1.08}.big-equation{font-size:clamp(27px,3.2vw,41px);gap:14px;overflow-wrap:anywhere}.big-equation strong{font-weight:400;color:var(--gold)}.big-equation sup{font-size:.6em}.verdict{font:19px Arial,sans-serif;color:var(--gold)}.rectangle-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:15px;margin:25px 0}.factor-rectangle{display:flex;align-items:center;justify-content:space-between;flex-direction:column;gap:18px;min-height:100px;padding:18px;border:1px solid #d1aa5244;background:#06131f}.factor-rectangle svg{width:100%;max-height:140px;margin:auto}.factor-rectangle strong{font-family:Georgia,serif;font-weight:400;font-size:21px;color:var(--gold)}.prime-chip{display:inline-flex;justify-content:center;align-items:center;border:1px solid currentColor;padding:10px 14px;font-size:22px;min-width:42px;background:#d1aa520b;color:var(--gold);border-radius:8px;font-variant-numeric:tabular-nums}.prime-chip.cyan{color:#78d6e4;background:#78d6e40b}.prime-chip.rose{color:#f3a1b3;background:#f3a1b30b}.prime-chip.green{color:#a1d7ad;background:#a1d7ad0b}.prime-chip.violet{color:#b8b0f4;background:#b8b0f40b}.factor-materials{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px;margin:30px 0}.times{color:var(--muted)}.prime-table-scroll{overflow-x:auto;margin:25px 0}.prime-table{width:100%;border-collapse:collapse;font-size:17px;text-align:left}.prime-table th,.prime-table td{border:1px solid #a9bac533;padding:14px;line-height:1.5}.prime-table th{color:var(--gold);font-size:13px;background:#d1aa520b}.prime-table caption{text-align:left;padding-bottom:14px;color:var(--muted);font-size:14px}.prime-table td .prime-chip{padding:5px 9px;font-size:16px}.divisor-pills{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0}.divisor-pills>span{padding:10px 14px;background:#d1aa5210;border:1px solid #d1aa5244;font-size:17px}.sieve-controls{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.sieve-controls button{font:inherit;font-size:14px;min-height:45px;background:#d1aa5210;border:1px solid var(--gold);color:var(--ivory);padding:12px 15px;cursor:pointer}.sieve-controls button:disabled{opacity:.4;cursor:default}.sieve-controls>span{font-size:13px;color:var(--muted)}.sieve-legend{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin:20px 0}.sieve-legend>span{padding:6px;border-bottom:2px solid #a9bac533}.sieve-legend .legend-prime{border-color:var(--gold);color:var(--gold)}.sieve-legend .legend-crossed{color:#92a5b1;text-decoration:line-through}.sieve-legend .legend-fresh{border-color:#f3a1b3;color:#f3a1b3}.sieve-board,.prime-map{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:6px;padding:12px;background:#06131f;border:1px solid #d1aa5244;margin:20px 0;max-height:500px;overflow:auto}.sieve-cell{display:flex;align-items:center;justify-content:center;min-height:38px;padding:5px;font-size:15px;font-variant-numeric:tabular-nums;border:1px solid #a9bac526;color:var(--ivory)}.sieve-cell.prime{color:#06131f;background:var(--gold);font-weight:700;border-color:var(--gold)}.sieve-cell.crossed{color:#8b9ba6;background:#71879608;text-decoration:line-through}.sieve-cell.fresh{color:#f3a1b3;background:#f3a1b31c;text-decoration:line-through;border-color:#f3a1b3}.sieve-cell.excluded{color:#83909a;background:#37424b;text-decoration:line-through}.sieve-cell.next{border:2px solid #78d6e4;color:#78d6e4}.sieve-explanation{min-height:4em}.package-example{display:flex;align-items:center;justify-content:center;gap:15px;flex-wrap:wrap;margin:30px 0}.package-example .prime-chip{font-size:19px}.time-row{padding:20px;border-left:3px solid var(--gold);margin:18px 0;background:#06131f}.time-row>strong{font-size:14px;color:var(--gold)}.time-row>div{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.time-row span{padding:8px 10px;border:1px solid #a9bac544;min-width:35px;text-align:center}.time-row .meeting{color:#06131f;background:var(--gold);font-weight:700;border-color:var(--gold)}.time-row.cyan{border-color:#78d6e4}.time-row.cyan>strong{color:#78d6e4}.lesson-result details{border-top:1px solid #d1aa5244;margin-top:25px;padding-top:18px}.lesson-result summary{cursor:pointer;color:var(--gold);font-size:17px;line-height:1.6}.lesson-result summary:focus-visible{outline:3px solid var(--gold);outline-offset:4px}.lesson-task{margin-top:28px;padding:20px;border-top:1px solid #d1aa5244}.lesson-task>strong{color:var(--gold);font-size:13px;letter-spacing:1px}.lesson-result .lesson-task p{font-size:16px;color:var(--muted);margin:12px 0 0}.rule-box{overflow-wrap:anywhere}
@media(max-width:700px){.fractions-hero{min-height:380px}.big-equation{font-size:28px}.sieve-board,.prime-map{grid-template-columns:repeat(5,minmax(0,1fr));max-height:430px;gap:5px;padding:9px}.sieve-cell{min-height:36px;font-size:14px}.sieve-controls>span{order:3;width:100%;text-align:center}.sieve-controls button{flex:1;font-size:13px;padding:12px 9px}.prime-table{font-size:15px;min-width:280px}.prime-table th,.prime-table td{padding:10px}.prime-chip{font-size:20px;padding:8px 11px}.verdict{font-size:17px}.rectangle-grid{grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}}

.prime-start{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:25px}.prime-start>a:not(.lab-button){color:var(--gold);font-size:14px;line-height:1.6}@media(max-width:700px){.prime-start{gap:18px}.prime-start .lab-button{font-size:10px;padding:16px}}