:root{
  --bg:#f2f0e8;--surface:#fbfaf5;--surface-2:#e9e6dc;--text:#13191f;--muted:#626b70;--border:#c8c6bd;
  --blue:#1555d9;--blue-soft:#e5ebf9;--teal:#1555d9;--teal-soft:#e5ebf9;--purple:#1555d9;--purple-soft:#e5ebf9;
  --orange:#c76518;--orange-soft:#f4e6d8;--green:#267259;--green-soft:#e1eee8;--red:#b23b3b;--red-soft:#f3e1de;
  --ink:#13191f;--paper:#fbfaf5;--signal:#1555d9;--grid:#dbd8ce
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Helvetica Neue",Helvetica,ui-sans-serif,system-ui,sans-serif;line-height:1.58}body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.3;background-image:linear-gradient(rgba(19,25,31,.035) 1px,transparent 1px);background-size:100% 42px}button,a{font:inherit}a{color:inherit}.shell{width:min(1160px,calc(100% - 34px));margin:0 auto}.skip-link{position:fixed;left:12px;top:10px;z-index:9999;transform:translateY(-160%);background:var(--ink);color:#fff;padding:10px 14px;border-radius:2px;font-weight:800;text-decoration:none}.skip-link:focus{transform:translateY(0);outline:3px solid #fff;outline-offset:2px}a:focus-visible,button:focus-visible{outline:3px solid var(--signal);outline-offset:3px}.topbar{position:sticky;top:0;z-index:50;background:rgba(242,240,232,.97);backdrop-filter:blur(8px);border-bottom:2px solid var(--ink)}.topbar-inner{min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:14px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:2px;background:var(--signal);color:#fff;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.78rem;font-weight:850}.brand-title{font-weight:850;font-size:.9rem;letter-spacing:.04em;text-transform:uppercase}.brand-sub{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.66rem;color:var(--muted)}.top-note{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.64rem;color:var(--muted);border:1px solid var(--border);padding:6px 9px;text-transform:uppercase;letter-spacing:.04em}.eyebrow{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;text-transform:uppercase;letter-spacing:.1em;color:var(--signal);font-size:.66rem;font-weight:850}h1,h2,h3{margin:0;text-wrap:balance}h1{font-size:clamp(3rem,6vw,5.3rem);line-height:.92;letter-spacing:-.06em}h2{font-size:clamp(1.6rem,3vw,2.4rem);letter-spacing:-.035em;line-height:1.08}.lead{font-size:1.05rem;color:var(--muted);max-width:72ch}.hero{padding:52px 0 32px}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}.hero-copy .eyebrow{margin-bottom:12px}.hero-copy .lead{margin:20px 0 0}.course-principle{margin-top:28px;border-top:1px solid var(--ink);border-bottom:1px solid var(--border);padding:13px 0;color:#455057}.course-principle::before{content:"RULE 01";display:inline-block;margin-right:12px;color:var(--signal);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.66rem;letter-spacing:.08em}.course-principle strong{color:var(--ink)}
.course-map-visual{min-height:330px;border:2px solid var(--ink);border-radius:0;background-color:var(--paper);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:34px 34px;padding:30px;color:var(--ink);display:grid;align-content:center;gap:20px;position:relative}.course-map-visual::after{content:"SYSTEMS DESIGN / COURSE MAP";position:absolute;left:12px;bottom:9px;background:var(--ink);color:#fff;padding:4px 7px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.58rem;letter-spacing:.06em}.course-path{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}.course-path::before{content:"";position:absolute;left:8%;right:8%;top:28px;height:2px;background:var(--ink)}.path-node{position:relative;z-index:2;text-align:center}.path-dot{width:56px;height:56px;margin:0 auto 10px;border-radius:0;display:grid;place-items:center;background:var(--paper);border:2px solid var(--ink);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:900;box-shadow:5px 5px 0 rgba(21,85,217,.12)}.path-node.current .path-dot{background:var(--signal);color:#fff;border-color:var(--signal);box-shadow:5px 5px 0 rgba(19,25,31,.12)}.path-node strong,.path-node small{display:block}.path-node strong{font-size:.75rem;text-transform:uppercase;letter-spacing:.04em}.path-node small{font-size:.67rem;color:var(--muted);margin-top:2px}.visual-caption{margin-top:12px;color:var(--muted);font-size:.78rem;text-align:left;border-top:1px solid var(--border);padding-top:10px}
.course-outcomes{padding:12px 0 34px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:18px;border-bottom:2px solid var(--ink);padding-bottom:11px}.section-head p{margin:6px 0 0;color:var(--muted);max-width:68ch}.outcome-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--ink)}.outcome{background:transparent;border:0;border-right:1px solid var(--border);border-radius:0;padding:17px;min-height:134px}.outcome:last-child{border-right:0}.outcome span{width:auto;height:auto;border-radius:0;display:block;background:transparent;color:var(--signal);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:900;margin-bottom:12px;border-bottom:2px solid var(--signal);padding-bottom:6px}.outcome strong,.outcome small{display:block}.outcome small{color:var(--muted);margin-top:5px}.mission-section{padding:24px 0 58px}.course-progress{border:1px solid var(--ink);background:transparent;border-radius:0;padding:6px 9px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.64rem;font-weight:800;color:var(--text);white-space:nowrap;text-transform:uppercase;letter-spacing:.04em}.mission-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.mission-card{--accent:var(--signal);--soft:var(--blue-soft);background:var(--paper);border:1px solid var(--ink);border-left:6px solid var(--accent);border-radius:0;padding:22px;display:flex;flex-direction:column;min-height:340px;position:relative}.mission-card::after{display:none}.mission-card.s2,.mission-card.s3,.mission-card.s4{--accent:var(--signal);--soft:var(--blue-soft)}.mission-top{display:flex;align-items:flex-start;justify-content:space-between;gap:15px}.mission-number{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:2.25rem;font-weight:900;letter-spacing:-.06em;color:var(--accent)}.state-badge{display:inline-flex;align-items:center;gap:6px;border-radius:0;padding:5px 7px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.61rem;font-weight:850;text-transform:uppercase;letter-spacing:.06em;background:transparent;color:var(--accent);border:1px solid var(--accent)}.state-badge.locked{border-color:var(--border);color:#707772}.mission-kicker{margin-top:20px;color:var(--accent);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;font-weight:900;border-top:1px solid var(--border);padding-top:12px}.mission-card h3{font-size:1.65rem;margin-top:4px;letter-spacing:-.035em}.mission-question{margin:12px 0 0;font-weight:750;color:#323d44}.mission-summary{color:var(--muted);margin:8px 0 0;max-width:60ch}.objective-row{display:flex;gap:5px;flex-wrap:wrap;margin:16px 0 0}.objective-row span{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.61rem;border-radius:0;border:1px solid var(--border);background:transparent;color:#555e62;padding:4px 6px;font-weight:720}.local-progress{margin-top:auto;padding-top:18px}.local-progress-head{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:.72rem}.progress-track{height:5px;background:#dedbd1;border-radius:0;overflow:hidden;margin-top:7px}.progress-fill{height:100%;background:var(--accent);border-radius:0}.mission-action{margin-top:18px}.btn{min-height:42px;border:1px solid var(--ink);background:transparent;color:var(--text);padding:9px 12px;border-radius:2px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.68rem;font-weight:780;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:7px;text-transform:uppercase;letter-spacing:.04em}.btn.primary{background:var(--accent,var(--signal));border-color:var(--accent,var(--signal));color:#fff}.btn.primary:hover{filter:brightness(.91);box-shadow:3px 3px 0 rgba(19,25,31,.16);transform:translate(-1px,-1px)}.hero-primary{min-width:230px;min-height:48px;font-size:.72rem;font-weight:900;box-shadow:4px 4px 0 rgba(19,25,31,.16)}.btn.soft{background:transparent;border-color:var(--accent);color:var(--accent)}.locked-note{display:flex;align-items:center;gap:8px;margin-top:16px;color:#777d78;font-size:.8rem;font-weight:720}.locked-note b{width:26px;height:26px;border-radius:0;background:transparent;border:1px solid var(--border);display:grid;place-items:center}.course-note{margin-top:18px;padding:14px 16px;border:1px solid var(--border);border-left:4px solid var(--signal);background:transparent;border-radius:0;color:#526174;font-size:.84rem}.course-note strong{color:#26394d}.footer{padding:14px 0 44px;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.64rem;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--border)}.footer a{color:var(--signal)}.teacher-hub .hero{padding-bottom:20px}.teacher-hub .mission-card{min-height:300px}.resource-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border:1px solid var(--ink);margin-top:16px}.resource-card{background:transparent;border:0;border-right:1px solid var(--border);border-bottom:1px solid var(--border);border-radius:0;padding:17px;text-decoration:none}.resource-card:nth-child(2n){border-right:0}.resource-card strong,.resource-card span{display:block}.resource-card strong{color:var(--signal)}.resource-card span{color:var(--muted);font-size:.8rem;margin-top:5px}.resource-card:hover{background:var(--blue-soft)}.release-box{margin:22px 0 48px;background:var(--ink);color:#fff;border-radius:0;border-left:7px solid var(--signal);padding:24px}.release-box p{color:#d2d8dc;max-width:76ch}.release-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:16px;border:1px solid rgba(255,255,255,.22)}.release-steps>div{background:transparent;border:0;border-right:1px solid rgba(255,255,255,.22);border-radius:0;padding:14px}.release-steps>div:last-child{border-right:0}.release-steps b,.release-steps span{display:block}.release-steps b{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#9fbaf5}.release-steps span{color:#cfd5d9;font-size:.78rem;margin-top:4px}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.course-map-visual{min-height:270px}.outcome-grid{grid-template-columns:repeat(2,1fr)}.outcome:nth-child(2){border-right:0}.outcome:nth-child(-n+2){border-bottom:1px solid var(--border)}.mission-grid{grid-template-columns:1fr}.release-steps{grid-template-columns:1fr}.release-steps>div{border-right:0;border-bottom:1px solid rgba(255,255,255,.22)}.release-steps>div:last-child{border-bottom:0}}
@media(max-width:650px){.shell{width:min(100% - 22px,1160px)}.topbar-inner{min-height:58px}.top-note,.brand-sub{display:none}.brand-mark{width:32px;height:32px}.hero{padding:34px 0 22px}.hero-grid{gap:28px}.course-map-visual{min-height:235px;padding:18px}.course-path{gap:2px}.path-dot{width:44px;height:44px}.path-node strong{font-size:.62rem}.path-node small{display:none}.outcome-grid{grid-template-columns:1fr}.outcome{border-right:0;border-bottom:1px solid var(--border)}.outcome:last-child{border-bottom:0}.section-head{display:block}.course-progress{display:inline-flex;margin-top:9px}.mission-card{padding:18px;min-height:0}.mission-card h3{font-size:1.42rem}.resource-grid{grid-template-columns:1fr}.resource-card{border-right:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}

/* v1.19 — mission-first course hub */
.mission-hero{padding-top:48px;padding-bottom:22px}.mission-hero-grid{align-items:stretch}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:24px}.hero-status{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.68rem;color:var(--muted);max-width:38ch}.assignment-board{position:relative;border:2px solid var(--ink);background:var(--paper);box-shadow:10px 10px 0 rgba(21,85,217,.11);padding:0;min-height:380px;display:flex;flex-direction:column}.assignment-head{background:var(--ink);color:#fff;padding:16px 18px;display:flex;justify-content:space-between;gap:16px;align-items:center}.assignment-head span{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.62rem;letter-spacing:.08em;color:#bfc8ce}.assignment-head strong{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;text-align:right}.assignment-grid{display:grid;grid-template-columns:1fr 1fr;flex:1}.assignment-grid>div{padding:18px;border-right:1px solid var(--border);border-bottom:1px solid var(--border)}.assignment-grid>div:nth-child(2n){border-right:0}.assignment-grid>div:nth-last-child(-n+2){border-bottom:0}.assignment-grid small,.assignment-grid strong,.assignment-grid span{display:block}.assignment-grid small{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--signal);font-size:.61rem;text-transform:uppercase;letter-spacing:.07em;font-weight:850}.assignment-grid strong{margin-top:6px;font-size:.95rem;line-height:1.2}.assignment-grid span{margin-top:6px;color:var(--muted);font-size:.75rem;line-height:1.4}.assignment-stamp{position:absolute;right:12px;bottom:10px;transform:rotate(-2deg);border:2px solid var(--green);color:var(--green);padding:4px 7px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.58rem;font-weight:900;letter-spacing:.06em;background:var(--paper)}
.team-brief{padding:20px 0 30px}.compact-head{margin-bottom:0}.home-roster{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--ink);border-top:0}.home-person{display:flex;gap:11px;align-items:flex-start;padding:15px;border-right:1px solid var(--border);min-height:108px}.home-person:last-child{border-right:0}.home-avatar{width:36px;height:36px;flex:0 0 36px;display:grid;place-items:center;background:var(--ink);color:#fff;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.65rem;font-weight:900}.home-person strong,.home-person small,.home-person em{display:block}.home-person strong{font-size:.86rem}.home-person small{font-size:.7rem;color:var(--muted);margin-top:1px}.home-person em{font-size:.66rem;color:var(--signal);font-style:normal;margin-top:6px;line-height:1.3}
.dossier-section{padding:2px 0 34px}.dossier-home-card{display:grid;grid-template-columns:1fr 1fr;border:2px solid var(--ink);background:var(--paper)}.dossier-home-copy{padding:22px 24px;border-right:1px solid var(--border)}.dossier-home-copy p{margin:9px 0 0;color:var(--muted);max-width:62ch}.dossier-live{padding:20px 22px;background-image:linear-gradient(rgba(19,25,31,.04) 1px,transparent 1px);background-size:100% 31px}.dossier-live-head{display:flex;justify-content:space-between;gap:14px;border-bottom:1px solid var(--ink);padding-bottom:8px}.dossier-live-head span{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.65rem;letter-spacing:.08em;font-weight:900}.dossier-live-head b{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.65rem;color:var(--signal);text-transform:uppercase}.dossier-live p{font-size:.78rem;color:var(--muted);margin:12px 0 0}.dossier-facts{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px;margin-top:13px}.dossier-fact{border-left:3px solid var(--signal);padding-left:9px}.dossier-fact small,.dossier-fact strong{display:block}.dossier-fact small{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.57rem;text-transform:uppercase;color:var(--muted);letter-spacing:.05em}.dossier-fact strong{font-size:.76rem;margin-top:1px}.mission-section{padding-top:8px}
@media(max-width:900px){.home-roster{grid-template-columns:1fr 1fr}.home-person:nth-child(2){border-right:0}.home-person:nth-child(-n+2){border-bottom:1px solid var(--border)}.dossier-home-card{grid-template-columns:1fr}.dossier-home-copy{border-right:0;border-bottom:1px solid var(--border)}}
@media(max-width:650px){.assignment-grid{grid-template-columns:1fr}.assignment-grid>div{border-right:0!important;border-bottom:1px solid var(--border)!important}.assignment-grid>div:last-child{border-bottom:0!important}.assignment-stamp{position:static;align-self:flex-end;margin:10px 12px 12px}.home-roster{grid-template-columns:1fr}.home-person{border-right:0!important;border-bottom:1px solid var(--border)!important;min-height:0}.home-person:last-child{border-bottom:0!important}.dossier-facts{grid-template-columns:1fr}.hero-actions{align-items:flex-start;flex-direction:column}}

/* Mission-first role briefing */
.role-brief{padding:12px 0 30px}.role-brief-card{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);border:2px solid var(--ink);background:var(--paper)}.role-brief-copy{padding:24px 26px;border-right:1px solid var(--border)}.role-brief-copy h2{margin-top:4px}.role-brief-copy>p{margin:9px 0 0;color:var(--muted);max-width:66ch}.role-boundary{margin-top:20px;border-left:4px solid var(--signal);padding:10px 0 10px 13px}.role-boundary strong,.role-boundary span{display:block}.role-boundary strong{font-size:.83rem}.role-boundary span{margin-top:4px;color:var(--muted);font-size:.76rem;line-height:1.45}.role-actions{display:grid;grid-template-columns:1fr 1fr}.role-actions>div{padding:18px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);min-height:125px}.role-actions>div:nth-child(2n){border-right:0}.role-actions>div:nth-last-child(-n+2){border-bottom:0}.role-actions span,.role-actions strong,.role-actions small{display:block}.role-actions span{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--signal);font-size:.61rem;font-weight:900;border-bottom:2px solid var(--signal);padding-bottom:5px;margin-bottom:9px}.role-actions strong{font-size:.84rem;line-height:1.25}.role-actions small{color:var(--muted);font-size:.7rem;line-height:1.4;margin-top:5px}@media(max-width:900px){.role-brief-card{grid-template-columns:1fr}.role-brief-copy{border-right:0;border-bottom:1px solid var(--border)}}@media(max-width:650px){.role-actions{grid-template-columns:1fr}.role-actions>div{border-right:0!important;border-bottom:1px solid var(--border)!important;min-height:0}.role-actions>div:last-child{border-bottom:0!important}.role-brief-copy{padding:20px}}

/* Instructor cockpit v1.21 */
.teacher-command{padding:42px 0 24px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(330px,.65fr);gap:22px;align-items:stretch}.teacher-command-main{border:2px solid var(--ink);padding:26px;background:var(--paper)}.teacher-current-line{display:flex;align-items:center;gap:10px;margin-bottom:8px}.teacher-current-line>span:first-child{font:900 .7rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.09em;color:var(--signal)}.teacher-command h1{font-size:clamp(2.7rem,5vw,4.5rem);margin-top:4px}.teacher-command .lead{margin:14px 0 0}.teacher-meta-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:16px}.teacher-meta-row span{font:760 .62rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;border:1px solid var(--border);padding:5px 7px;color:#505a61}.teacher-launch-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}.btn.disabled{opacity:.45;pointer-events:none}.teacher-mustleave{margin-top:24px;border-top:1px solid var(--ink);padding-top:15px}.teacher-mustleave ul{margin:9px 0 0;padding-left:19px;color:#46525a}.teacher-mustleave li{margin:6px 0}.class-access-card{border:2px solid var(--ink);background:var(--paper);display:flex;flex-direction:column}.class-access-head{background:var(--ink);color:#fff;padding:13px 15px;display:flex;justify-content:space-between;gap:12px;font:850 .62rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.08em}.class-access-head b{color:#a9c0ff}.class-access-body{padding:18px;display:grid;grid-template-columns:156px 1fr;gap:18px;align-items:center;flex:1}.class-access-body img{width:156px;height:156px;border:1px solid var(--border);image-rendering:pixelated}.class-access-body p{color:var(--muted);font-size:.8rem}.class-url{font:900 .82rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace!important;color:var(--ink)!important;overflow-wrap:anywhere}.teacher-pacing-section{padding:10px 0 28px}.teacher-pacing-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--ink)}.teacher-pacing-grid article{padding:16px;border-right:1px solid var(--border);min-height:135px}.teacher-pacing-grid article:last-child{border-right:0}.teacher-pacing-grid span{display:block;font:850 .6rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--signal);letter-spacing:.08em}.teacher-pacing-grid strong{display:block;font-size:1.55rem;margin-top:5px}.teacher-pacing-grid p{font-size:.75rem;color:var(--muted);margin:6px 0 0}.teacher-author-section{padding:0 0 48px}.author-details{border-top:2px solid var(--ink);border-bottom:1px solid var(--border)}.author-details summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:16px 0}.author-details summary::-webkit-details-marker{display:none}.author-details summary>span:first-child span,.author-details summary>span:first-child strong{display:block}.author-details summary>span:last-child{font:800 .65rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;text-transform:uppercase;color:var(--signal)}.author-details[open] summary{border-bottom:1px solid var(--border)}.author-details-body{padding:20px 0 8px}.teacher-release-box{margin-top:0;margin-bottom:18px}.instructor-privacy-note{display:grid;grid-template-columns:240px 1fr;gap:20px;border:1px solid var(--amber);padding:14px 16px;margin-bottom:20px;background:#fff8ee}.instructor-privacy-note strong{font:850 .68rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;text-transform:uppercase;color:#8a4a06}.instructor-privacy-note span{font-size:.82rem;color:#5f5146}
@media(max-width:900px){.teacher-command{grid-template-columns:1fr}.teacher-pacing-grid{grid-template-columns:repeat(2,1fr)}.teacher-pacing-grid article:nth-child(2){border-right:0}.teacher-pacing-grid article:nth-child(-n+2){border-bottom:1px solid var(--border)}.class-access-body{grid-template-columns:130px 1fr}.class-access-body img{width:130px;height:130px}.instructor-privacy-note{grid-template-columns:1fr}}
@media(max-width:650px){.teacher-command{padding-top:24px}.teacher-command-main{padding:18px}.class-access-body{grid-template-columns:1fr}.class-access-body img{width:170px;height:170px}.teacher-pacing-grid{grid-template-columns:1fr}.teacher-pacing-grid article{border-right:0;border-bottom:1px solid var(--border)}.teacher-pacing-grid article:last-child{border-bottom:0}}

/* v1.33 · Final Debrief ---------------------------------------------------- */
.debrief-page .topbar{position:sticky}.debrief-hero{padding:54px 0 30px;border-bottom:2px solid var(--ink)}.debrief-hero h1{max-width:1080px}.debrief-hero .lead{margin:20px 0 0;max-width:88ch}.debrief-rule{margin-top:24px;display:flex;gap:12px;align-items:baseline;border-left:5px solid var(--signal);padding:10px 14px;background:var(--paper)}.debrief-rule strong{white-space:nowrap}.debrief-rule span{color:var(--muted);font-size:.84rem}.debrief-spine,.debrief-missions,.reasoning-section,.remember-section,.transfer-section,.field-guide-section{padding:34px 0 10px}.spine-track{display:grid;grid-template-columns:minmax(120px,1fr) auto minmax(120px,1fr) auto minmax(120px,1fr) auto minmax(120px,1fr) auto minmax(120px,1fr);align-items:stretch;border:1px solid var(--ink);background:var(--paper)}.spine-track>div{padding:16px 14px;min-width:0}.spine-track>div span,.spine-track>div strong,.spine-track>div small{display:block}.spine-track>div span{font:900 .6rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--signal);border-bottom:2px solid var(--signal);padding-bottom:5px}.spine-track>div strong{margin-top:9px;font-size:.9rem}.spine-track>div small{margin-top:4px;color:var(--muted);font-size:.7rem;line-height:1.35}.spine-track>b{display:grid;place-items:center;padding:0 5px;color:var(--signal);font-size:1.1rem}.debrief-mission-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--ink);background:var(--paper)}.debrief-mission-grid article{padding:17px;border-right:1px solid var(--border);min-height:150px}.debrief-mission-grid article:last-child{border-right:0}.debrief-mission-grid span,.debrief-mission-grid strong{display:block}.debrief-mission-grid span{font:900 .61rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--signal);letter-spacing:.07em}.debrief-mission-grid strong{margin-top:8px;font-size:.95rem}.debrief-mission-grid p{margin:7px 0 0;color:var(--muted);font-size:.76rem;line-height:1.42}.reasoning-map{display:grid;border:2px solid var(--ink);background:var(--paper)}.reason-card{display:grid;grid-template-columns:84px 1fr;border-bottom:1px solid var(--border)}.reason-card:last-child{border-bottom:0}.reason-index{display:grid;place-items:start center;padding-top:20px;border-right:1px solid var(--border);font:900 1.6rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--signal)}.reason-body{padding:18px 20px}.reason-body>span{font:900 .61rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.08em;color:var(--signal)}.reason-body h3{font-size:1.28rem;margin-top:4px}.reason-columns{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(250px,.65fr);gap:20px;margin-top:12px}.reason-columns b{display:block;font:850 .62rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;text-transform:uppercase;letter-spacing:.07em}.reason-columns p{margin:5px 0 0;color:var(--muted);font-size:.8rem;line-height:1.42}.reason-trap{border-left:4px solid var(--orange);padding-left:12px}.reason-trap b{color:var(--orange)}.reason-equations{display:flex;gap:6px;flex-wrap:wrap;margin-top:9px}.reason-equations span{border:1px solid var(--ink);padding:5px 7px;font:850 .67rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#fff}.remember-board{display:grid;grid-template-columns:minmax(280px,.68fr) minmax(0,1.32fr);border:2px solid var(--ink);background:var(--ink);color:#fff}.remember-copy{padding:24px}.remember-copy .eyebrow{color:#a9c0ff}.remember-copy p{color:#c8d0d7;margin:10px 0 0}.remember-list{list-style:none;margin:0;padding:0;background:var(--paper);color:var(--ink);display:grid;grid-template-columns:1fr 1fr}.remember-list li{display:grid;grid-template-columns:44px 1fr;gap:8px;align-items:start;padding:15px;border-right:1px solid var(--border);border-bottom:1px solid var(--border)}.remember-list li:nth-child(2n){border-right:0}.remember-list li:nth-last-child(-n+2){border-bottom:0}.remember-list b{font:900 .64rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--signal)}.remember-list span{font-size:.83rem;line-height:1.38;font-weight:740}.transfer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.transfer-card{border:1px solid var(--ink);background:var(--paper)}.transfer-card summary{list-style:none;cursor:pointer;padding:16px;min-height:142px;display:grid;grid-template-columns:32px 1fr;gap:8px;align-content:start}.transfer-card summary::-webkit-details-marker{display:none}.transfer-card summary span{font:900 .64rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--signal)}.transfer-card summary strong{font-size:.87rem;line-height:1.4}.transfer-card summary::after{content:'Open anchor +';grid-column:2;font:800 .61rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--muted);margin-top:8px}.transfer-card[open] summary::after{content:'Close anchor −'}.transfer-card>div{border-top:1px solid var(--border);padding:14px 16px;background:var(--green-soft)}.transfer-card>div b{font:900 .6rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;text-transform:uppercase;color:var(--green)}.transfer-card>div p{margin:6px 0 0;font-size:.78rem;line-height:1.45;color:#355348}.field-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--ink);background:var(--paper)}.field-grid>div{padding:15px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);min-height:110px}.field-grid>div:nth-child(4n){border-right:0}.field-grid>div:nth-last-child(-n+4){border-bottom:0}.field-grid strong,.field-grid span{display:block}.field-grid strong{font-size:.82rem}.field-grid span{margin-top:5px;color:var(--muted);font-size:.72rem;line-height:1.4}.final-takeaway{margin-top:38px;margin-bottom:42px;border:2px solid var(--ink);border-left:8px solid var(--signal);background:var(--paper);padding:24px}.final-takeaway h2{max-width:980px;margin-top:5px}.final-takeaway p{color:var(--muted);margin:10px 0 18px}.debrief-home-card{margin-top:18px;border:1px solid var(--ink);border-left:6px solid var(--signal);background:var(--paper);padding:18px;display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center}.debrief-home-card span,.debrief-home-card strong,.debrief-home-card small{display:block}.debrief-home-card span{font:900 .61rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--signal);letter-spacing:.08em}.debrief-home-card strong{font-size:1.12rem;margin-top:4px}.debrief-home-card small{color:var(--muted);font-size:.75rem;margin-top:5px}.debrief-home-card.locked .btn{opacity:.42;pointer-events:none}.debrief-home-card.locked{border-left-color:var(--border)}.debrief-home-card.locked span{color:var(--muted)}
@media(max-width:950px){.spine-track{grid-template-columns:1fr}.spine-track>b{transform:rotate(90deg);min-height:26px}.debrief-mission-grid{grid-template-columns:1fr 1fr}.debrief-mission-grid article:nth-child(2){border-right:0}.debrief-mission-grid article:nth-child(-n+2){border-bottom:1px solid var(--border)}.reason-columns{grid-template-columns:1fr}.remember-board{grid-template-columns:1fr}.transfer-grid{grid-template-columns:1fr}.field-grid{grid-template-columns:1fr 1fr}.field-grid>div{border-right:1px solid var(--border)!important;border-bottom:1px solid var(--border)!important}.field-grid>div:nth-child(2n){border-right:0!important}.field-grid>div:nth-last-child(-n+2){border-bottom:0!important}}
@media(max-width:650px){.debrief-hero{padding-top:30px}.debrief-rule{display:grid;gap:4px}.debrief-rule strong{white-space:normal}.debrief-mission-grid{grid-template-columns:1fr}.debrief-mission-grid article{border-right:0!important;border-bottom:1px solid var(--border)!important;min-height:0}.debrief-mission-grid article:last-child{border-bottom:0!important}.reason-card{grid-template-columns:52px 1fr}.reason-index{font-size:1.15rem;padding-top:17px}.reason-body{padding:15px}.remember-list{grid-template-columns:1fr}.remember-list li{border-right:0!important;border-bottom:1px solid var(--border)!important}.remember-list li:last-child{border-bottom:0!important}.field-grid{grid-template-columns:1fr}.field-grid>div{border-right:0!important;border-bottom:1px solid var(--border)!important;min-height:0}.field-grid>div:last-child{border-bottom:0!important}.debrief-home-card{grid-template-columns:1fr}}