.practice-shell{width:min(1100px,calc(100% - 40px));margin:0 auto}.practice-top{background:var(--navy);color:var(--white);padding:24px 0 72px}.practice-top a{color:var(--white)}.practice-nav{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:58px}.practice-nav a{text-decoration:none;font-size:13px}.practice-brand{font-family:var(--serif);font-size:18px}.practice-hero h1{font:400 clamp(44px,7vw,84px)/1.02 var(--serif);letter-spacing:-.04em;max-width:820px;margin:0 0 22px}.practice-hero p{max-width:760px;color:rgba(255,255,255,.72);font-size:19px}.practice-meta{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:28px;color:var(--gold-soft);font-size:12px;text-transform:uppercase;letter-spacing:.1em}.practice-main{padding:58px 0 100px}.practice-main h2,.practice-main h3{font-family:var(--serif);font-weight:400;line-height:1.15}.practice-main h2{font-size:clamp(32px,4vw,50px);margin:0 0 14px}.practice-main h3{font-size:28px;margin:0 0 10px}.practice-main p{max-width:760px}.practice-intro{display:grid;grid-template-columns:.7fr 1.3fr;gap:50px;border-bottom:1px solid var(--border);padding-bottom:42px;margin-bottom:50px}.practice-intro p{color:var(--muted);margin:0}.route-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}.route-list a{border:1px solid var(--border);padding:18px;text-decoration:none;background:var(--white)}.route-list a:hover,.route-list a:focus-visible{border-color:var(--red);background:var(--paper-2)}.route-list span{display:block;color:var(--red);font-size:11px;text-transform:uppercase;letter-spacing:.12em;font-weight:700}.route-list strong{display:block;font-family:var(--serif);font-size:20px;margin-top:20px}.route-list small{display:block;color:var(--muted);margin-top:6px}.lab-section{border-top:4px solid var(--navy);padding-top:28px;margin-top:78px;scroll-margin-top:20px}.lab-label{color:var(--red);font-size:11px;text-transform:uppercase;letter-spacing:.14em;font-weight:700}.prompt{background:var(--paper-2);border:1px solid var(--border);padding:clamp(22px,4vw,38px);margin:20px 0 34px}.prompt blockquote{font:400 clamp(22px,3vw,34px)/1.3 var(--serif);margin:0;color:var(--navy)}.prompt-note{color:var(--muted);font-size:14px;margin:18px 0 0}.source-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.source-card{background:var(--white);border:1px solid var(--border);padding:22px;display:flex;flex-direction:column}.source-card h4{font-family:var(--serif);font-size:21px;line-height:1.2;margin:0 0 8px}.source-card .source-meta{color:var(--red);font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:700}.source-card p{color:var(--muted);font-size:14px}.source-card blockquote{border-left:3px solid var(--gold);padding-left:16px;margin:14px 0;font-family:var(--serif);font-size:16px;line-height:1.55}.source-task{border-top:1px solid var(--border);padding-top:13px;margin-top:auto!important;font-size:14px!important;color:var(--ink)!important}.source-task strong{color:var(--red)}.source-card a{font-size:13px;font-weight:700;margin-top:14px}.source-warning{font-size:12px!important;color:var(--muted)!important;margin-top:12px}.workbench{margin-top:36px;border-top:1px solid var(--border);padding-top:30px}.workbench-intro{color:var(--muted)}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}.field label{font-weight:700;font-size:14px}.field small{color:var(--muted);font-size:12px}.field textarea,.field input{font:inherit;border:1px solid #8e887e;background:var(--white);padding:12px 13px;border-radius:2px;min-height:100px;resize:vertical}.field input{min-height:48px}.field textarea:focus,.field input:focus{outline:3px solid rgba(185,138,56,.45);outline-offset:2px}.choice-row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.choice-row label{border:1px solid var(--border);background:var(--white);padding:11px 13px;font-size:14px}.choice-row input{accent-color:var(--red)}.checklist{display:grid;gap:10px;background:var(--paper-2);padding:20px;margin-top:28px}.checklist label{font-size:14px}.checklist input{accent-color:var(--red);margin-right:8px}.footer-note{border-top:1px solid var(--border);margin-top:52px;padding-top:22px;color:var(--muted);font-size:13px}.back-home{color:var(--red);font-weight:700}.sr-only-local{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}@media(max-width:800px){.practice-intro,.source-grid{grid-template-columns:1fr}.route-list{grid-template-columns:1fr}.field-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.practice-nav{align-items:flex-start;flex-direction:column}}@media(max-width:620px){.practice-shell{width:min(100% - 24px,1100px)}.practice-top{padding-bottom:52px}.practice-nav{margin-bottom:42px}.practice-hero p{font-size:17px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.prompt-guide{border:1px solid var(--border);background:var(--white);padding:clamp(24px,4vw,40px);margin:46px 0 12px}.prompt-guide h2{margin-bottom:0}.guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px}.guide-grid>div{border-top:3px solid var(--gold);padding-top:12px}.guide-grid strong{font-size:14px}.guide-grid p,.formula-card p{color:var(--muted);font-size:14px}.formula-card{background:var(--navy);color:var(--white);padding:24px;margin-top:28px}.formula-card p{color:rgba(255,255,255,.72);max-width:none}.formula-card .lab-label{color:var(--gold-soft)}.formula{font:400 clamp(24px,3vw,38px)/1.2 var(--serif)!important;color:var(--gold-soft)!important;margin:6px 0 12px}.formula-example{border-left:3px solid var(--gold-soft);padding-left:16px}.guide-note{margin-bottom:0}.guide-note strong{color:var(--gold-soft)}@media(max-width:900px){.guide-grid{grid-template-columns:1fr 1fr}}@media(max-width:620px){.guide-grid{grid-template-columns:1fr}}

/* Stage 3 Thesis Lab guidance revision */
.practice-intro .lab-label{color:#111!important}.practice-intro>div:last-child>p{color:var(--ink)}
.prompt-breakdown-example{margin-top:24px;background:var(--paper-2);border-left:4px solid var(--gold);padding:18px 20px}
.prompt-breakdown-example h3{font-size:22px;margin-bottom:8px}.prompt-breakdown-example blockquote{font:400 20px/1.45 var(--serif);margin:0;color:var(--navy)}
.task-terms-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:24px}.task-terms-grid>div{border-top:3px solid var(--gold);padding-top:14px}.task-terms-grid h3,.extent-guidance h3,.rubric-guidance h3{font-size:24px}.task-terms-grid p,.task-terms-grid li,.extent-guidance li,.rubric-guidance p,.rubric-guidance li{font-size:15px;line-height:1.6}.task-terms-grid ul,.extent-guidance ul{padding-left:20px}
.extent-guidance{margin-top:30px}.extent-figure{margin:24px 0 0;padding:20px;border:1px solid var(--border);background:var(--paper-2)}.extent-figure figcaption{font-weight:700;margin-bottom:16px}.extent-continuum{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:center}.extent-end{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em}.extent-track{position:relative;min-height:84px;border:2px solid var(--navy);background:linear-gradient(to right,var(--white) 0 8%,rgba(185,138,56,.18) 8% 43%,var(--white) 43% 57%,rgba(185,138,56,.18) 57% 92%,var(--white) 92% 100%);display:grid;grid-template-columns:1fr 1fr 1fr;align-items:center;text-align:center;padding:8px}.extent-zone{font-size:12px;font-weight:700;color:var(--navy)}.extent-zone-left{grid-column:1}.extent-zone-right{grid-column:3}.extent-middle{grid-column:2;font-size:12px;font-weight:700;text-decoration:line-through;text-decoration-thickness:2px;text-decoration-color:var(--red);color:var(--ink);padding:0 6px}
.rubric-guidance{margin-top:34px;border-top:1px solid var(--border);padding-top:26px}.rubric-language{font:400 22px/1.45 var(--serif);color:var(--navy);border-left:4px solid var(--red);margin:14px 0 18px;padding:8px 0 8px 18px}.rubric-guidance ol{padding-left:22px}.rubric-guidance .lab-label{color:var(--red)}
.formula-card .formula-parts{margin:14px 0 22px;padding-left:22px}.formula-card .formula-parts li{margin-bottom:9px;line-height:1.55}.instructional-example{margin-top:22px;padding:20px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22)}.instructional-example p{color:rgba(255,255,255,.88);max-width:none}.instructional-example .example-label{color:var(--gold-soft);font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:700}.thesis-parts{display:grid;grid-template-columns:36px 1fr;gap:8px 12px;margin:18px 0 0}.thesis-parts dt{font-weight:700;color:var(--gold-soft)}.thesis-parts dd{margin:0;color:rgba(255,255,255,.88)}
@media(max-width:760px){.task-terms-grid{grid-template-columns:1fr}.extent-continuum{grid-template-columns:1fr}.extent-end{text-align:center}.extent-track{min-height:150px;grid-template-columns:1fr}.extent-zone-left,.extent-middle,.extent-zone-right{grid-column:1}.extent-track{background:linear-gradient(to bottom,var(--white) 0 8%,rgba(185,138,56,.18) 8% 40%,var(--white) 40% 60%,rgba(185,138,56,.18) 60% 92%,var(--white) 92% 100%)}.thesis-parts{grid-template-columns:28px 1fr}}

/* Stage 4 Thesis Lab interaction layer */
.thesis-js .route-list a[aria-current="page"]{border-color:var(--red);box-shadow:inset 0 0 0 2px rgba(132,44,41,.12);background:var(--paper-2)}
.thesis-js .lab-section[hidden]{display:none!important}.thesis-js .lab-section h2[tabindex="-1"]:focus{outline:3px solid var(--red);outline-offset:6px;border-radius:2px}
.stage4-workflow{margin-top:36px;border:1px solid var(--border);background:var(--paper-2);padding:clamp(22px,4vw,34px)}
.workflow-heading{border-bottom:1px solid var(--border);padding-bottom:20px;margin-bottom:26px}.workflow-heading h3{margin-bottom:8px}.workflow-heading p:last-child{color:var(--muted);margin-bottom:0}
.workflow-step+.workflow-step{border-top:1px solid var(--border);margin-top:30px;padding-top:28px}.workflow-step h4{font-family:var(--serif);font-size:24px;font-weight:400;margin:3px 0 8px}.workflow-step>p:not(.step-kicker){color:var(--muted);margin-top:0}
.step-kicker{color:var(--red)!important;font-size:11px!important;text-transform:uppercase;letter-spacing:.12em;font-weight:700;margin:0 0 4px!important}.workbench-step{margin-bottom:6px!important}
.evidence-organizer{display:grid;gap:10px;margin-top:18px}.evidence-organizer-row{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(220px,.8fr);gap:16px;align-items:center;background:var(--white);border:1px solid var(--border);padding:13px 14px}.evidence-organizer-row label{font-size:13px;line-height:1.4}.evidence-organizer-row select,.qualification-choice select{width:100%;font:inherit;font-size:14px;border:1px solid #8e887e;background:var(--white);padding:10px 11px;border-radius:2px}.evidence-organizer-row[data-role="group1"],.evidence-organizer-row[data-role="group2"]{border-left:4px solid var(--gold)}.evidence-organizer-row[data-role="x"]{border-left:4px solid var(--red)}
.reasoning-map-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:18px}.interactive-field{display:flex;flex-direction:column;gap:6px}.interactive-field label{font-weight:700;font-size:14px}.interactive-field small,.qualification-choice small{font-size:12px;color:var(--muted);line-height:1.45}.interactive-field input{font:inherit;border:1px solid #8e887e;background:var(--white);padding:11px 12px;min-height:46px;border-radius:2px}.interactive-field input:focus,.evidence-organizer select:focus,.qualification-choice select:focus,.practice-button:focus-visible{outline:3px solid rgba(185,138,56,.45);outline-offset:2px}
.qualification-choice{display:grid;grid-template-columns:1fr 1.5fr;gap:8px 16px;align-items:center;margin-top:18px}.qualification-choice small{grid-column:2}.reasoning-snapshot{background:var(--white);border-left:4px solid var(--navy);padding:15px 16px;margin-top:20px}.reasoning-snapshot strong{display:block;font-size:13px;text-transform:uppercase;letter-spacing:.07em;color:var(--navy)}.reasoning-snapshot p{margin:7px 0 0;color:var(--ink);font-size:14px;line-height:1.55;max-width:none}
.revision-panel{border:1px solid var(--border);background:var(--white);padding:clamp(22px,4vw,32px);margin-top:28px}.revision-panel h3{margin-bottom:8px}.revision-panel>p:not(.step-kicker):not(.self-assessment-status){color:var(--muted)}.revision-panel .field{margin-top:18px}.revision-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}.practice-button{appearance:none;border:1px solid var(--navy);background:var(--navy);color:var(--white);font:700 13px/1.2 inherit;padding:10px 14px;border-radius:2px;cursor:pointer}.practice-button:hover{filter:brightness(1.08)}.practice-button.secondary{background:transparent;color:var(--navy)}.self-assessment-status{margin:18px 0 0;padding:12px 14px;background:var(--paper-2);border-left:4px solid var(--gold);font-size:13px!important;color:var(--ink)!important}.session-tools{display:flex;justify-content:space-between;gap:18px;align-items:center;border-top:1px solid var(--border);padding-top:18px;margin-top:22px}.session-save-status{color:var(--muted);font-size:12px!important;margin:0!important;max-width:650px!important}
@media(max-width:760px){.evidence-organizer-row,.reasoning-map-grid,.qualification-choice{grid-template-columns:1fr}.qualification-choice small{grid-column:1}.session-tools{align-items:flex-start;flex-direction:column}.practice-button{width:100%}}

/* Stage 4 workflow refinement: provisional clustering + repeated prompt reference */
.step-prompt-reference{margin:14px 0 18px;padding:13px 15px;border-left:4px solid var(--gold);background:var(--white)}
.step-prompt-reference strong{display:block;color:var(--navy);font-size:11px;text-transform:uppercase;letter-spacing:.1em;margin-bottom:5px}
.step-prompt-reference p{margin:0!important;color:var(--ink)!important;font-family:var(--serif);font-size:16px;line-height:1.5;max-width:none!important}
.evidence-organizer-tools{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(180px,.65fr);gap:10px;align-items:center}
.evidence-organizer-tools input{width:100%;font:inherit;font-size:14px;border:1px solid #8e887e;background:var(--white);padding:10px 11px;border-radius:2px;min-width:0}
.evidence-organizer-tools input:focus{outline:3px solid rgba(185,138,56,.45);outline-offset:2px}
@media(max-width:900px){.evidence-organizer-row{grid-template-columns:1fr}.evidence-organizer-tools{grid-template-columns:1fr 220px}}
@media(max-width:600px){.evidence-organizer-tools{grid-template-columns:1fr}}


/* Stage 5 accessibility and responsive QA */
.stage4-workflow .workflow-heading p:last-child,.stage4-workflow .workflow-step>p:not(.step-kicker),.stage4-workflow .interactive-field small,.stage4-workflow .qualification-choice small,.stage4-workflow .session-save-status{color:#5f5a52}
.route-list a:focus-visible,.practice-nav a:focus-visible,.source-card a:focus-visible,.back-home:focus-visible{outline:3px solid var(--red);outline-offset:4px}
.choice-row input:focus-visible,.checklist input:focus-visible{outline:3px solid var(--red);outline-offset:3px}
.evidence-organizer-row select,.qualification-choice select,.evidence-organizer-tools input,.interactive-field input,.practice-button{min-height:44px}
.practice-button{padding:11px 14px}
@media(max-width:480px){.stage4-workflow,.revision-panel,.prompt,.prompt-guide{padding-left:18px;padding-right:18px}.evidence-organizer-row{padding:12px}.step-prompt-reference{padding:12px}.practice-hero h1{font-size:clamp(40px,13vw,58px)}.reasoning-snapshot{overflow-wrap:anywhere}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}

/* Pre-Stage 6 architecture: Unit → Prompt selector */
.thesis-selector{margin:0 0 50px;padding:clamp(24px,4vw,38px);border:1px solid var(--border);background:var(--white)}
.selector-heading h2{margin-bottom:10px}.selector-heading>p:last-child{color:#5f5a52;margin:0;max-width:780px}
.unit-selector{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:8px;margin-top:24px}
.unit-button{min-height:64px;border:1px solid var(--border);background:var(--white);color:var(--ink);padding:10px 8px;font:inherit;text-align:center;border-radius:2px;cursor:pointer}
.unit-button strong,.unit-button span{display:block}.unit-button strong{font-family:var(--serif);font-size:17px;font-weight:400}.unit-button span{margin-top:4px;font-size:10px;line-height:1.2;color:#5f5a52;text-transform:uppercase;letter-spacing:.06em}
.unit-button.is-active{border-color:var(--red);background:var(--paper-2);box-shadow:inset 0 0 0 1px var(--red)}
.unit-button.is-active strong{color:var(--red)}
.unit-button:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.unit-button:disabled{cursor:not-allowed;background:#f2efe8;color:#6c675f;border-color:#d4cec4;opacity:1}
.unit-button:disabled span{color:#6c675f}
.prompt-selector-panel{margin-top:26px;padding-top:22px;border-top:1px solid var(--border)}
.prompt-selector-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:14px}.prompt-selector-heading p{margin:0}.prompt-selector-heading>p:last-child{color:#5f5a52;font-size:13px;max-width:560px;text-align:right}
.prompt-selector-panel .route-list{margin-top:0}
@media(max-width:900px){.unit-selector{grid-template-columns:repeat(5,1fr)}.prompt-selector-heading{display:block}.prompt-selector-heading>p:last-child{text-align:left;margin-top:6px}}
@media(max-width:620px){.unit-selector{grid-template-columns:repeat(3,1fr)}.thesis-selector{padding:20px 18px}.unit-button{min-height:60px}.prompt-selector-panel{margin-top:22px}}

/* Stage 6 feedback scaffolds: source interpretation help + model responses */
.interpretation-help{margin-top:14px;border:1px solid var(--border);background:var(--paper-2)}
.interpretation-help summary{cursor:pointer;list-style:none;padding:12px 14px;font-weight:700;font-size:14px;color:var(--navy)}
.interpretation-help summary::-webkit-details-marker{display:none}
.interpretation-help summary::after{content:'+';float:right;color:var(--red);font-weight:700}
.interpretation-help[open] summary::after{content:'–'}
.interpretation-help-body{padding:0 14px 14px}
.interpretation-help-body p{font-size:14px;line-height:1.6;color:var(--ink);margin:0 0 10px;max-width:none}
.interpretation-help-body p:last-child{margin-bottom:0}
.model-feedback{margin-top:30px;border:1px solid var(--border);background:var(--paper-2);padding:clamp(22px,4vw,32px)}
.model-feedback h3{margin-bottom:8px}
.model-feedback>p:not(.lab-label){color:var(--muted)}
.feedback-example{background:var(--white);border:1px solid var(--border);margin-top:14px}
.feedback-example summary{cursor:pointer;list-style:none;padding:14px 16px;font-weight:700;color:var(--navy)}
.feedback-example summary::-webkit-details-marker{display:none}
.feedback-example summary::after{content:'+';float:right;color:var(--red);font-weight:700}
.feedback-example[open] summary::after{content:'–'}
.feedback-example-body{padding:0 16px 16px}
.feedback-example-body ul{margin:10px 0 0;padding-left:20px}
.feedback-example-body li{margin-bottom:8px;line-height:1.55}
.sample-thesis{padding:14px 16px;border-left:4px solid var(--gold);background:#fbf9f3;color:var(--ink)!important;max-width:none!important}
.error-list{margin-top:0}
.interpretation-help summary:focus-visible,.feedback-example summary:focus-visible{outline:3px solid var(--red);outline-offset:3px}
@media(max-width:480px){.model-feedback,.feedback-example-body,.interpretation-help-body{padding-left:14px;padding-right:14px}.feedback-example summary,.interpretation-help summary{padding-left:14px;padding-right:14px}}


/* Stage 6 AP scoring-commentary refinement */
.misconception-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:4px}
.misconception-grid>div{border-top:3px solid var(--gold);padding:12px 12px 4px;background:#fbf9f3}
.misconception-grid strong{display:block;color:var(--navy);font-size:14px;line-height:1.35}
.misconception-grid p{margin:7px 0 8px!important;color:var(--ink)!important;font-size:14px;line-height:1.55;max-width:none!important}
@media(max-width:700px){.misconception-grid{grid-template-columns:1fr}}

/* Post-Stage 7 refinement: export/copy student work */
.export-panel{margin-top:24px;padding-top:20px;border-top:1px solid var(--border)}
.export-panel h4{font-family:var(--serif);font-size:24px;font-weight:400;margin:0 0 8px}
.export-panel>p{color:var(--muted);margin-top:0}
.export-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.export-status{margin:0!important;font-size:13px!important;color:var(--ink)!important}
.export-preview{margin-top:16px}
.export-preview label{display:block;font-weight:700;font-size:14px;margin-bottom:6px}
.export-preview textarea{width:100%;font:inherit;border:1px solid #8e887e;background:var(--white);padding:12px 13px;border-radius:2px;min-height:260px;resize:vertical}
.export-preview textarea:focus{outline:3px solid rgba(185,138,56,.45);outline-offset:2px}
.export-preview small{display:block;margin-top:7px;font-size:12px;color:#5f5a52;line-height:1.45}
@media(max-width:760px){.export-actions{align-items:flex-start;flex-direction:column}.export-actions .practice-button{width:100%}}

/* Master.52 rich export formatting */
.export-preview>strong{display:block;font-size:14px;margin-bottom:6px}
.export-rich-preview{width:100%;border:1px solid #8e887e;background:var(--white);padding:14px 16px;border-radius:2px;min-height:260px;max-height:520px;overflow:auto;line-height:1.5}
.export-rich-preview:focus{outline:3px solid rgba(185,138,56,.45);outline-offset:2px}
.export-rich-preview p{max-width:none;margin:0 0 8px}
.export-rich-preview p:has(br){margin:0 0 4px}