.depth-lesson-title{padding-bottom:24px;border-bottom:1px solid var(--ink);margin-bottom:28px}.depth-lesson-title h1{font-size:44px;line-height:1.1;letter-spacing:-1.6px;margin:12px 0 24px}.depth-steps{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}.depth-steps button{display:flex;gap:8px;align-items:center;justify-content:center;min-height:46px;padding:11px 8px;border:1px solid var(--line);background:#fffdf8;font-size:12px;cursor:pointer}.depth-steps button span{font:11px var(--mono)}.depth-steps .current{background:var(--blue);color:#fff;border-color:var(--blue)}.depth-steps .done:not(.current){background:#e8efcd}.depth-steps button:disabled{opacity:.45;cursor:default}.depth-task-head{display:flex;justify-content:space-between;align-items:flex-start;gap:25px;margin:22px 0}.depth-task-head h2{font-size:30px;line-height:1.2;letter-spacing:-.7px;margin:10px 0 12px}.depth-task-head p{max-width:690px;font-size:16px;line-height:1.5;margin:0}.depth-task-tabs{display:flex;gap:8px}.depth-task-tabs button{width:42px;height:42px;border:1px solid var(--line);background:#fffdf8;cursor:pointer}.depth-task-tabs [aria-pressed=true]{background:var(--ink);color:#fff}.depth-task-tabs button:disabled{opacity:.4}.depth-bench{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,1fr);gap:0;border:1px solid var(--ink);border-radius:6px;overflow:hidden;background:#fffdf8}.depth-visual{padding:24px;min-width:0}.depth-scene,.depth-trace-scene{display:block;width:100%;height:auto;max-height:300px}.depth-caption{font:10px/1.5 var(--mono);color:var(--muted);margin:10px 0 18px}.depth-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;border:1px solid var(--line);background:var(--line);margin:18px 0}.depth-metrics>div{padding:14px 10px;background:#fffdf8;min-width:0}.depth-metrics dt{font-size:10px;line-height:1.5;color:var(--muted)}.depth-metrics dd{font:25px/1.2 var(--mono);letter-spacing:-1px;margin:8px 0 0;overflow-wrap:anywhere}.depth-console{padding:24px;border-left:1px solid var(--line);background:#ecebe2;display:flex;flex-direction:column;gap:16px;justify-content:center}.depth-control{display:block;font-size:11px;line-height:1.5}.depth-control>span{display:block;margin-bottom:7px;font-weight:600}.depth-control select{width:100%;border:1px solid #b9b9ae;padding:10px;background:#fffdf8;font:12px var(--font);border-radius:3px;min-height:40px}.depth-number{display:flex;align-items:center;gap:12px}.depth-number input[type=range]{flex:1;min-width:0;width:100%;accent-color:var(--blue)}.depth-number input[type=number]{width:78px;padding:9px;border:1px solid #b9b9ae;font:13px var(--mono);background:#fffdf8;border-radius:3px}.depth-console .primary-button{justify-content:center;margin-top:8px}.depth-event-strip{margin:16px 0 0;padding-left:22px;font-size:12px;line-height:1.7}.depth-feedback{padding:18px 22px;border:1px solid var(--line);margin-top:18px;line-height:1.5;font-size:14px}.depth-feedback p{margin:8px 0 0;max-width:760px}.depth-feedback.success{background:#e8efcd;border-color:#a8ba78}.depth-feedback.retry{background:#fff0e4;border-color:#d9ae85}.depth-next{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:24px 0}.depth-next p{font-size:12px;line-height:1.5;color:var(--muted)}.depth-reading,.depth-evidence{margin:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;max-width:900px;font-size:14px;line-height:1.6}.depth-reading summary,.depth-evidence summary{font-size:13px;font-weight:600;cursor:pointer}.depth-reading p,.depth-reading ol{max-width:760px}.depth-trace-grid,.depth-transfer-grid,.depth-practice,.depth-locked{display:grid;grid-template-columns:1fr 1fr;gap:35px;margin:25px 0}.depth-command-list{border:1px solid var(--ink);padding:15px;margin-bottom:20px;background:#fffdf8}.depth-command-list>div{display:flex;gap:15px;padding:10px 12px;border-bottom:1px solid var(--line);font-size:13px}.depth-command-list>div:last-child{border:0}.depth-command-list span{font:11px var(--mono);color:var(--blue)}.depth-command-list b{font-weight:500;line-height:1.5}.depth-question h3{font-size:24px;line-height:1.3;letter-spacing:-.4px;margin:5px 0 20px}.depth-question .primary-button{margin-top:20px}.depth-transfer h2{font-size:30px;line-height:1.2;letter-spacing:-.8px;margin:15px 0 28px;max-width:650px}.depth-transfer-grid>div>p{font-size:16px;line-height:1.5;padding:18px;border:1px solid var(--line);background:#e8efcd}.depth-transfer form{background:#fffdf8;padding:25px;border:1px solid var(--ink);display:flex;align-items:flex-start;flex-direction:column;gap:18px;min-width:0}.depth-transfer label{font-size:20px;line-height:1.4;font-weight:600}.depth-transfer input,.depth-transfer select{width:100%;padding:13px;border:1px solid var(--line);font:15px var(--font);background:#f6f3ec;border-radius:3px}.depth-transfer small{font-size:11px;color:var(--muted)}.depth-transfer .depth-feedback{margin:0;width:100%;font-size:13px}.depth-practice{border:1px solid var(--ink);background:#fffdf8;padding:30px;align-items:center}.depth-practice h2,.depth-locked h2{font-size:28px;line-height:1.25;margin:14px 0}.depth-practice p,.depth-practice li,.depth-locked p{font-size:14px;line-height:1.65}.depth-practice ul{padding-left:20px}.depth-practice .secondary-button{margin:10px 0 0}.depth-small{font-size:12px!important;color:var(--muted);line-height:1.6}.depth-old-note{padding:15px 18px;background:#e8edff;border:1px solid #bdcbed;font-size:12px;line-height:1.5}.depth-module-plan{display:grid;grid-template-columns:1fr 1fr;gap:30px;border:1px solid var(--ink);background:#fffdf8;padding:28px;margin-bottom:30px}.depth-module-plan h2{font-size:20px;margin:0 0 12px}.depth-module-plan p{font-size:17px;line-height:1.5}.depth-module-plan small{font-size:11px;color:var(--muted);line-height:1.6}.depth-module-plan ul{font-size:14px;line-height:1.8;padding-left:20px}.depth-future{opacity:.72}.depth-plan-link{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:25px;background:#e8efcd;border:1px solid #a9ba80;margin:32px 0;text-decoration:none}.depth-plan-link b{display:block;font-size:20px;margin-bottom:6px}.depth-plan-link small{font-size:12px;line-height:1.6}.depth-legacy-progress{padding:20px;border:1px solid var(--line);margin:25px 0}.depth-legacy-progress p{font-size:13px;line-height:1.6}.depth-evidence>div{padding:18px}.depth-evidence article{margin:20px 0}.depth-evidence h3{font-size:18px}.depth-roadmap{margin:25px 0}.depth-roadmap>li{list-style:none;border-left:2px solid var(--blue);padding:0 0 28px 25px}.depth-roadmap h3{margin:0 0 8px;font-size:24px}.depth-roadmap p{line-height:1.6}.depth-roadmap small{font-size:12px;color:var(--muted)}
@media(max-width:900px){.depth-steps{grid-template-columns:repeat(3,1fr)}.depth-bench{grid-template-columns:1fr}.depth-console{border-left:0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:15px}.depth-console .primary-button{grid-column:1/-1}.depth-trace-grid,.depth-transfer-grid,.depth-practice,.depth-locked{gap:22px}.depth-metrics{grid-template-columns:repeat(4,1fr)}}
@media(max-width:640px){.depth-lesson-title h1{font-size:30px;letter-spacing:-.8px;margin:10px 0 18px}.depth-lesson-title{padding-bottom:18px;margin-bottom:20px}.depth-steps button{font-size:10px;gap:6px;padding:8px 5px;min-height:42px}.depth-task-head{gap:12px}.depth-task-head h2{font-size:24px;margin-bottom:10px}.depth-task-head p{font-size:13px}.depth-task-tabs{gap:5px}.depth-task-tabs button{width:32px;height:38px}.depth-visual{padding:15px}.depth-scene{max-height:200px}.depth-metrics{grid-template-columns:repeat(3,1fr);margin:12px 0}.depth-metrics>div{padding:10px 7px}.depth-metrics dd{font-size:21px}.depth-metrics dt{font-size:9px}.depth-console{padding:16px;gap:14px 12px}.depth-control{font-size:10px}.depth-control select{font-size:11px;padding:8px 5px}.depth-number{gap:6px}.depth-number input[type=number]{width:58px;padding:9px 5px;font-size:12px}.depth-event-strip{font-size:11px;margin-top:10px}.depth-next{flex-direction:column;align-items:stretch;gap:10px}.depth-next .primary-button{justify-content:center}.depth-feedback{font-size:12px;padding:15px}.depth-trace-grid,.depth-transfer-grid,.depth-practice,.depth-locked,.depth-module-plan{grid-template-columns:1fr}.depth-command-list{padding:10px}.depth-command-list>div{font-size:12px;padding:9px}.depth-question h3{font-size:21px}.depth-trace-scene{max-height:170px}.depth-transfer h2{font-size:25px}.depth-transfer label{font-size:18px}.depth-transfer form{padding:20px}.depth-transfer-grid>div>p{font-size:13px}.depth-practice{padding:20px}.depth-practice h2,.depth-locked h2{font-size:24px}.depth-module-plan{padding:20px;gap:25px}.depth-plan-link{padding:20px}.depth-plan-link b{font-size:18px}.depth-reading{font-size:13px}.depth-roadmap{padding-left:0}}
@media print{.depth-steps,.depth-console,.depth-next,.depth-question button,.depth-transfer button{display:none!important}.depth-bench,.depth-trace-grid,.depth-transfer-grid,.depth-practice{display:block}.depth-reading,.depth-evidence{break-inside:auto}}

.depth-metrics{background:transparent;gap:0}.depth-metrics>div{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.depth-console #depth-change-state{margin:0;font-size:10px!important;line-height:1.5}
@media(max-width:640px){.mission-page-top:has(+.depth-lesson-title){margin-bottom:12px}.depth-lesson-title h1{font-size:28px;margin:8px 0 14px}.depth-lesson-title{margin-bottom:14px;padding-bottom:14px}.depth-task-head{margin:16px 0}.depth-visual{display:contents}.depth-visual #depth-scene{order:0;padding:15px}.depth-console{order:1}.depth-console #depth-change-state{grid-column:1/-1}.depth-visual #depth-metrics{order:2;padding:0 15px}.depth-event-strip{order:3;margin:0;padding:0 25px 15px 35px}.depth-metrics{grid-template-columns:repeat(4,1fr)}.depth-metrics dd{font-size:18px}.depth-metrics dt{font-size:9px}.depth-scene{max-height:160px}}

.depth-live-inspector{border:1px solid var(--line);padding:14px 18px;background:#fffdf8;margin:16px 0;font-size:12px;line-height:1.6}.depth-live-inspector summary{cursor:pointer;font-weight:600}.depth-live-inspector>p{font-size:11px;color:var(--muted);margin:10px 0 0}.depth-current-line{display:flex;justify-content:space-between;gap:15px;margin-top:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}.depth-current-line span{color:var(--blue)}#depth-live-memory dl{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 0}#depth-live-memory dl>div{padding:8px 12px;background:#ecebe2;border:1px solid var(--line)}#depth-live-memory dt{font-size:10px;color:var(--muted)}#depth-live-memory dd{font:15px var(--mono);margin:4px 0 0}#depth-live-memory dl>p{font-size:11px;margin:0;color:var(--muted)}

@media(max-width:640px){.depth-control{font-size:12px}.depth-control select{font-size:12px}.depth-number input[type=number]{font-size:13px}.depth-metrics dt{font-size:10px}.depth-caption{font-size:10px}}

.ac-block.depth-executing{border-color:var(--blue);box-shadow:inset 3px 0 var(--blue);background:#edf0ff}.ac-block.depth-executing>.ac-block-main>b{color:var(--blue)}

@media(max-width:640px){.depth-evidence .depth-metrics{grid-template-columns:repeat(2,1fr)}.depth-evidence .depth-metrics dt{font-size:11px;line-height:1.5}.depth-evidence .depth-metrics dd{font-size:22px}}

.depth-settings{border:0;padding:0;margin:0;min-width:0;display:grid;gap:16px}.depth-settings:disabled{opacity:.65}.depth-number input[aria-invalid=true]{border-color:#a44123;outline:1px solid #a44123}.depth-verdict{list-style:none;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:14px 0}.depth-verdict li{background:#fffdf8;padding:12px;border:1px solid var(--line)}.depth-verdict b,.depth-verdict span{display:block}.depth-verdict span{font-size:12px;margin-top:5px}.depth-verdict .missed b{color:#92371d}.depth-verdict .passed b{color:#3e541e}
@media(max-width:900px){.depth-settings{grid-column:1/-1;grid-template-columns:1fr 1fr;gap:15px}.depth-console #depth-change-state{grid-column:1/-1}}
@media(max-width:640px){.depth-verdict{grid-template-columns:1fr}.depth-settings{gap:14px 12px}}