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(max-width:680px){.brand-bar,.hero-grid{width:min(100% - 30px,1180px)}.brand-bar{min-height:60px}.wordmark{gap:9px;font-size:13px}.wordmark-mark{width:34px;height:34px}.difficulty-pill{padding:7px 11px;font-size:11px}.hero-grid{gap:30px;margin-top:15px;margin-bottom:38px}.hero-kicker{font-size:10px}.hero-copy h1{margin:10px 0 14px;font-size:32px;line-height:1}.hero-lead{font-size:14px;line-height:1.48}.hero-start-panel{margin-top:16px;padding-top:14px}.hero-control-label{margin-bottom:8px;font-size:10px}.hero-control-label b{width:18px;height:18px;font-size:9px}.hero-level-selector{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-level-selector button{min-height:52px;padding:8px 11px}.hero-level-selector button:disabled{flex-direction:row;grid-column:1/-1;justify-content:flex-start;align-items:center;gap:7px;min-height:40px}.hero-level-selector button:disabled>span{margin-left:auto;position:static}.hero-selected-exam{gap:6px 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90px;padding:0 12px}.question-card{border-radius:17px;padding:26px 20px}.question-meta{flex-direction:column;gap:5px}.question-card h1{font-size:19px;line-height:1.48}.choice{grid-template-columns:38px minmax(0,1fr) auto;gap:10px;padding-right:12px}.question-actions{flex-direction:column;align-items:flex-start}.action-right{grid-template-columns:minmax(0,1fr) minmax(0,1fr);width:100%;display:grid}.action-right button{white-space:normal;min-width:0;padding:0 12px}.result-hero{padding-top:50px}.result-stats{flex-direction:column;align-items:center;gap:13px}.result-benchmarks{grid-template-columns:1fr}.section-breakdown,.answer-review{padding:22px 16px}.breakdown-heading{flex-direction:column;align-items:flex-start}.breakdown-row{grid-template-columns:1fr 42px;gap:8px 12px}.progress-track{grid-area:2/1}.breakdown-percent{grid-area:2/2}.review-item summary{grid-template-columns:30px 1fr;padding:14px 12px}.review-body{padding:0 12px 14px}}@media 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