/* Specialized rule diagrams and controls use shared Flight Deck tokens. */
.regulations-lesson .reference{font-size:13px;color:var(--muted)}
.reg-section{margin-top:44px}.reg-section h2{margin-bottom:8px}.reg-jump{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:14px}
.reg-chapter-note{max-width:800px;color:var(--muted)}.reg-hero{display:flex;align-items:center;gap:40px}.reg-hero>img{width:150px;height:150px}
.reg-lab{border:1px solid var(--line);border-radius:14px;padding:24px;background:white}
.reg-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.reg-fields label{display:flex;flex-direction:column;gap:7px;color:var(--teal);font-size:15px;font-weight:600}
.reg-fields input:not([type=checkbox]),.reg-fields select{width:100%;min-width:0;border:1px solid #91a8ab;border-radius:7px;background:var(--paper);color:var(--ink);padding:10px}
.reg-fields .reg-checkbox{flex-direction:row;align-items:center;font-weight:400}.reg-checkbox input{width:20px;height:20px;flex-shrink:0}
.reg-diagram{display:block;width:100%;height:auto;background:#f2f5ef;border-radius:12px;margin:20px 0}.reg-diagram text{font:18px 'DM Sans',sans-serif;fill:#173d49}
.reg-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}.reg-table-wrap table{width:100%;border-collapse:collapse;font-size:14px}.reg-table-wrap caption{padding:14px;text-align:left;font-weight:600;background:var(--fd-sage)}.reg-table-wrap th,.reg-table-wrap td{padding:13px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}.reg-table-wrap th{color:var(--teal)}
.reg-flow{list-style:none;padding:0;counter-reset:rule-step}.reg-flow li{counter-increment:rule-step;background:var(--fd-sage);border:1px solid var(--line);padding:15px;border-radius:9px;margin:10px 0}.reg-flow li:before{content:counter(rule-step) ' → ';font-weight:700;color:var(--teal)}
.reg-timeline{display:grid;gap:14px}.reg-timeline>div{border-left:5px solid var(--teal);background:var(--fd-sage);padding:20px;border-radius:0 12px 12px 0}.reg-timeline>div:nth-child(2){margin-left:22px;border-color:#7d9d87}.reg-timeline>div:nth-child(3){margin-left:44px;border-color:#c08e50}.reg-timeline span{display:block;color:var(--muted);margin-top:7px}
.reg-error{border-left-color:#a14935!important}.regulations-lesson .fd-course-card p{font-size:14px}
@media(max-width:650px){.reg-fields{grid-template-columns:1fr}.reg-lab{padding:16px}.reg-hero{display:block}.reg-hero>img{display:none}.reg-table-wrap th,.reg-table-wrap td{padding:8px;font-size:13px}.reg-diagram{min-height:180px}.reg-timeline>div:nth-child(n){margin-left:0}}
@media print{.reg-lab{break-inside:avoid}.reg-fields{display:none}.reg-diagram{max-height:300px}.reg-table-wrap{overflow:visible}.reg-timeline>div{break-inside:avoid}}

.reg-encounters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.reg-encounters .reg-diagram{margin:0}
@media(max-width:650px){.reg-encounters{grid-template-columns:1fr}.reg-encounters .reg-diagram{max-height:none;aspect-ratio:220/320}}
.reg-cloud-figure{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:24px;margin:20px 0}.reg-cloud-figure .reg-diagram{margin:0}.reg-distance-key{display:grid;gap:14px;margin:0}.reg-distance-key>div{padding:14px;background:var(--fd-sage);border:1px solid var(--line);border-radius:8px}.reg-distance-key dt{font-weight:600;color:var(--teal)}.reg-distance-key dt span{display:inline-flex;width:25px;height:25px;align-items:center;justify-content:center;border:1px solid var(--teal);border-radius:50%;background:#fff;margin-right:5px}.reg-distance-key dd{margin:6px 0 0;font-size:18px;font-weight:700;color:var(--ink)}
.reg-altitude-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.reg-altitude-grid figure,.reg-encounters figure{margin:0;min-width:0}.reg-altitude-grid figcaption,.reg-encounters figcaption{font-size:16px;line-height:1.55}.reg-altitude-grid figcaption p{margin:8px 0 0}.reg-altitude-grid .reg-diagram{margin:0 0 14px}.reg-encounters figure{padding:14px;border:1px solid var(--line);border-radius:12px;background:white}.reg-encounters h3{margin:0 0 10px!important;font-size:20px!important}.reg-encounters .reg-diagram{aspect-ratio:300/240!important;margin:0 0 14px}
.reg-taxi-exercise{margin-bottom:32px}.reg-taxi-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:24px;align-items:start}.reg-taxi-layout figure,.reg-learn-signs{margin:0}.reg-taxi-scene{margin:0 0 10px}.reg-taxi-layout figcaption,.reg-learn-signs figcaption{font-size:15px;line-height:1.5;color:var(--muted)}.reg-scene-key{padding-left:22px;margin-top:0}.reg-scene-key li{padding-left:5px;margin-bottom:14px}.reg-signs{min-height:0!important;max-width:540px}.reg-sign-key{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:0 0 22px}.reg-sign-key dt{font-weight:700;color:var(--teal)}.reg-sign-key dd{margin:6px 0 0;line-height:1.5}
@media(max-width:850px){.reg-altitude-grid{grid-template-columns:1fr}.reg-altitude-grid figure{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:center}.reg-altitude-grid .reg-diagram{margin:0}.reg-taxi-layout{grid-template-columns:1fr}.reg-taxi-scene{max-width:360px;margin-left:auto;margin-right:auto}}
@media(max-width:650px){.reg-cloud-figure{grid-template-columns:1fr;gap:16px}.reg-cloud-positions{max-width:350px;margin-left:auto!important;margin-right:auto!important}.reg-distance-key dd{font-size:18px}.reg-sign-key{grid-template-columns:1fr;gap:12px}.reg-sign-key>div{padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--fd-sage)}.reg-altitude-grid figure{grid-template-columns:1fr;gap:12px}.reg-altitude-grid .reg-diagram{max-width:350px;margin:auto}.reg-encounters .reg-diagram{min-height:0;max-width:350px;margin-left:auto;margin-right:auto}.reg-encounters figcaption{font-size:16px}.reg-encounters .reg-diagram text{font-size:18px}.reg-lab .reg-taxi-exercise h3{font-size:22px}}
@media print{.reg-cloud-figure{grid-template-columns:1fr 1fr}.reg-altitude-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.reg-altitude-grid figure{display:block}.reg-taxi-layout{grid-template-columns:1fr 1fr}.reg-sign-key{grid-template-columns:repeat(3,minmax(0,1fr))}.reg-encounters figure,.reg-altitude-grid figure,.reg-cloud-figure{break-inside:avoid}}