/* GENERATED — do not edit.
 * Source : src/vendor/aiarch/styles.css
 * Build  : apps/purple-mlstudy/build.mjs -> scripts/scope-css.mjs
 *
 * Every rule below was rewritten to match only inside .pi-panel--aiarch,
 * so the AI Architect styles cannot leak into the other tab. ':root',
 * 'html' and 'body' selectors were collapsed onto the panel element, and
 * '[data-theme]' hooks were lifted out to the document element, which the
 * shell owns. @keyframes names are prefixed 'aia-'.
 *
 * Edit src/vendor/aiarch/styles.css and re-run the build.
 */
.pi-panel--aiarch{
  --paper:#f6f3ec;--paper-2:#ece8df;--ink:#171712;--muted:#665f55;--line:#cfc8bc;
  --orange:#d97757;--orange-dark:#9f4b34;--green:#4e6a55;--purple:#69577a;--white:#fff;
  --shadow:0 18px 55px rgba(27,23,17,.12);--radius:16px;--sans:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --serif:Georgia,"Times New Roman",serif;
}
.pi-panel--aiarch,.pi-panel--aiarch *{box-sizing:border-box}
.pi-panel--aiarch{scroll-behavior:smooth}
.pi-panel--aiarch{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.5}
.pi-panel--aiarch button,.pi-panel--aiarch input{font:inherit}
.pi-panel--aiarch button{cursor:pointer}
.pi-panel--aiarch a{color:inherit}
.pi-panel--aiarch .skip-link{position:fixed;left:16px;top:-80px;background:#fff;padding:10px 16px;z-index:999;border:2px solid #000}
.pi-panel--aiarch .skip-link:focus{top:16px}
.pi-panel--aiarch .topbar{border-bottom:1px solid var(--line);background:rgba(246,243,236,.96);position:sticky;top:0;z-index:40;backdrop-filter:blur(12px)}
.pi-panel--aiarch .topbar-inner{max-width:1220px;margin:auto;display:flex;align-items:center;gap:28px;padding:17px 26px;font-size:14px}
.pi-panel--aiarch .home-link{font-weight:700;text-decoration:none}
.pi-panel--aiarch .topbar nav{display:flex;gap:22px;flex:1}
.pi-panel--aiarch .topbar nav a{text-decoration:none;color:#3e3932}
.pi-panel--aiarch .topbar nav a:hover{text-decoration:underline}
.pi-panel--aiarch .signin-link{border:0;background:transparent;text-decoration:underline;font-weight:650}
.pi-panel--aiarch .theme-toggle{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s}
.pi-panel--aiarch .theme-toggle:hover{background:var(--paper-2)}
.pi-panel--aiarch .view{display:none}
.pi-panel--aiarch .view.active{display:block}
.pi-panel--aiarch .hero-wrap{max-width:1220px;margin:auto;padding:76px 26px 42px}
.pi-panel--aiarch .hero-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(310px,.7fr);gap:70px;align-items:start}
.pi-panel--aiarch .eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:12px;font-weight:800;color:var(--orange-dark);margin-bottom:14px}
.pi-panel--aiarch .unofficial-pill{display:inline-flex;border:1px solid var(--orange);border-radius:999px;padding:7px 12px;font-size:12px;font-weight:750;color:var(--orange-dark);margin-bottom:22px;background:#fff7f1}
.pi-panel--aiarch h1,.pi-panel--aiarch h2,.pi-panel--aiarch h3,.pi-panel--aiarch p{margin-top:0}
.pi-panel--aiarch h1{font-family:var(--serif);font-weight:400;font-size:clamp(45px,6vw,78px);line-height:.98;letter-spacing:-.045em;margin-bottom:26px}
.pi-panel--aiarch h1 span{display:block;font-style:italic;color:var(--orange-dark)}
.pi-panel--aiarch h2{font-family:var(--serif);font-weight:400;font-size:clamp(32px,4vw,48px);line-height:1.05;letter-spacing:-.025em}
.pi-panel--aiarch h3{line-height:1.25}
.pi-panel--aiarch .lede{max-width:760px;font-family:var(--serif);font-size:21px;line-height:1.55;color:#454038}
.pi-panel--aiarch .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:32px 0 17px}
.pi-panel--aiarch .btn{border-radius:4px;padding:13px 19px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:14px;font-weight:650}
.pi-panel--aiarch .btn.primary{border-color:var(--ink);background:var(--ink);color:#fff}
.pi-panel--aiarch .btn.primary:hover:not(:disabled){background:#2a2a2a}
.pi-panel--aiarch .btn.secondary{border-color:var(--line);background:#fff;color:var(--ink)}
.pi-panel--aiarch .btn.secondary:hover:not(:disabled){background:var(--paper-2)}
.pi-panel--aiarch .text-button{border:0;background:transparent;padding:0;color:#3e3932;font-size:14px;font-weight:650;text-decoration:underline;cursor:pointer}
.pi-panel--aiarch .text-button span{color:var(--orange-dark)}
.pi-panel--aiarch .exam-card{border:1px solid var(--line);background:#fff;padding:24px;border-radius:8px}
.pi-panel--aiarch .exam-card-head{font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:800;color:var(--muted);margin-bottom:18px}
.pi-panel--aiarch .detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pi-panel--aiarch .detail-grid dt{font-size:12px;color:var(--muted);margin-bottom:4px}
.pi-panel--aiarch .detail-grid dd{margin:0;font-weight:650;font-size:15px}
.pi-panel--aiarch .tip{width:20px;height:20px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:12px;cursor:pointer;padding:0;line-height:1;display:inline-flex;align-items:center;justify-content:center;vertical-align:middle;margin-left:4px}
.pi-panel--aiarch .tip.larger{width:28px;height:28px;font-size:16px}
.pi-panel--aiarch .fineprint{font-size:13px;color:var(--muted);max-width:620px;margin-top:14px}
.pi-panel--aiarch .content-section{max-width:1220px;margin:auto;padding:60px 26px}
.pi-panel--aiarch .section-heading{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:28px}
.pi-panel--aiarch .domain-list{display:flex;flex-direction:column;gap:10px}
.pi-panel--aiarch .domain-row{display:grid;grid-template-columns:minmax(0,1fr) 60px 200px;gap:18px;align-items:center;padding:15px 0;border-top:1px solid var(--line)}
.pi-panel--aiarch .domain-row .weight{font-weight:700;font-size:14px}
.pi-panel--aiarch .bar{height:6px;background:var(--paper-2);border-radius:999px;overflow:hidden}
.pi-panel--aiarch .bar i{display:block;height:100%;background:var(--orange)}
.pi-panel--aiarch .scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.pi-panel--aiarch .scenario-card{border:1px solid var(--line);background:#fff;padding:22px;border-radius:8px}
.pi-panel--aiarch .scenario-card .num{font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:800;color:var(--muted);margin-bottom:10px}
.pi-panel--aiarch .scenario-card h3{font-family:var(--serif);font-size:20px;margin-bottom:8px;font-weight:400}
.pi-panel--aiarch .scenario-card p{font-size:14px;color:var(--muted);margin-bottom:14px}
.pi-panel--aiarch .course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.pi-panel--aiarch .course-grid article{border:1px solid var(--line);background:#fff;padding:22px;border-radius:8px}
.pi-panel--aiarch .course-grid article span{font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:800;color:var(--muted)}
.pi-panel--aiarch .course-grid article h3{font-family:var(--serif);font-size:20px;margin:10px 0 8px;font-weight:400}
.pi-panel--aiarch .course-grid article p{font-size:14px;color:var(--muted);margin-bottom:14px}
.pi-panel--aiarch .source-note{max-width:920px;margin:auto;padding:40px 26px 80px}
.pi-panel--aiarch .source-note h2{font-size:28px}
.pi-panel--aiarch .source-note p{color:var(--muted);font-size:15px}
.pi-panel--aiarch .quiz-shell{min-height:100vh;display:grid;grid-template-columns:310px 1fr;background:#f7f6f1}
.pi-panel--aiarch .quiz-sidebar{background:#1c1b18;color:#fff;padding:28px 20px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow:auto}
.pi-panel--aiarch .brand-lockup{background:transparent;border:0;color:#fff;display:flex;gap:13px;align-items:center;text-align:left;font-weight:750;padding:0 6px 24px}
.pi-panel--aiarch .brand-lockup small{font-weight:400;color:#bbb6ad}
.pi-panel--aiarch .mark{display:grid;place-items:center;width:38px;height:38px;border:1px solid #817d73;border-radius:50%;font-family:var(--serif);font-size:22px}
.pi-panel--aiarch .sidebar-status{border-top:1px solid #48453f;border-bottom:1px solid #48453f;padding:18px 6px}
.pi-panel--aiarch .mini-label{text-transform:uppercase;letter-spacing:.13em;font-size:11px;font-weight:800;color:#8f887c}
.pi-panel--aiarch .quiz-sidebar .mini-label{color:#aaa49a}
.pi-panel--aiarch .progress-copy{margin:6px 0 12px}
.pi-panel--aiarch .progress-track{height:6px;background:#47443e;border-radius:999px;overflow:hidden}
.pi-panel--aiarch .progress-track i{display:block;height:100%;width:0;background:var(--orange)}
.pi-panel--aiarch .scenario-nav{padding:18px 0;display:flex;flex-direction:column;gap:8px}
.pi-panel--aiarch .scenario-nav details{border-bottom:1px solid #3b3934;padding-bottom:8px}
.pi-panel--aiarch .scenario-nav summary{list-style:none;cursor:pointer;font-size:13px;font-weight:700;padding:8px 6px}
.pi-panel--aiarch .scenario-nav summary::-webkit-details-marker{display:none}
.pi-panel--aiarch .question-dots{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;padding:7px 5px}
.pi-panel--aiarch .qdot{width:37px;height:34px;background:#2c2b27;color:#d9d5cc;border:1px solid #4b4841;border-radius:3px;font-size:12px}
.pi-panel--aiarch .qdot.answered{background:#5d6858;border-color:#788974;color:#fff}
.pi-panel--aiarch .qdot.flagged::after{content:'•';color:#ffbd66;position:absolute}
.pi-panel--aiarch .qdot.current{outline:2px solid var(--orange);outline-offset:1px}
.pi-panel--aiarch .qdot{position:relative}
.pi-panel--aiarch .sidebar-actions{margin-top:auto;display:flex;flex-direction:column;gap:8px;padding:10px 6px}
.pi-panel--aiarch .quiz-main{min-width:0}
.pi-panel--aiarch .quiz-header{height:100px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:20px 42px;background:var(--paper)}
.pi-panel--aiarch .quiz-header h2{font-size:28px;margin:0}
.pi-panel--aiarch .header-tools{display:flex;align-items:center;gap:14px}
.pi-panel--aiarch .icon-button{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;font-weight:700;cursor:pointer}
.pi-panel--aiarch .timer{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:15px;font-weight:600;padding:8px 14px;border:1px solid var(--line);background:#fff;border-radius:4px}
.pi-panel--aiarch .timer.warning{color:#b85b50;border-color:#b85b50}
.pi-panel--aiarch .question-stage{padding:32px 42px 80px;max-width:980px}
.pi-panel--aiarch .question-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;font-size:13px;color:var(--muted)}
.pi-panel--aiarch .question-meta .dot{margin:0 8px}
.pi-panel--aiarch .flag-button{border:0;background:transparent;color:var(--muted);font-size:13px;cursor:pointer}
.pi-panel--aiarch .flag-button.active{color:var(--orange-dark);font-weight:700}
.pi-panel--aiarch .scenario-context{font-size:14px;color:#5c564d;background:var(--paper-2);padding:14px 18px;border-radius:6px;border-left:4px solid var(--orange);margin-bottom:18px;line-height:1.55}
.pi-panel--aiarch .question-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:32px 36px}
.pi-panel--aiarch .question-number{font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:800;color:var(--orange-dark);margin-bottom:12px}
.pi-panel--aiarch .question-card h3{font-family:var(--serif);font-size:22px;font-weight:400;margin-bottom:8px;line-height:1.35}
.pi-panel--aiarch .selection-hint{font-size:14px;color:var(--muted);margin-bottom:18px}
.pi-panel--aiarch .answer-options{display:grid;gap:10px}
.pi-panel--aiarch .answer-option{display:flex;gap:14px;align-items:flex-start;text-align:left;width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:6px;background:#fff;cursor:pointer;font-size:15px;line-height:1.45}
.pi-panel--aiarch .answer-option:hover{border-color:#a9a198}
.pi-panel--aiarch .answer-option.selected{border-color:var(--ink);background:#f4f1ea}
.pi-panel--aiarch .answer-option.correct{border-color:#5a7a60;background:#edf6ee}
.pi-panel--aiarch .answer-option.incorrect{border-color:#b85b50;background:#fff0ed}
.pi-panel--aiarch .choice-key{flex-shrink:0;width:28px;height:28px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700}
.pi-panel--aiarch .selected .choice-key{background:var(--ink);color:#fff;border-color:var(--ink)}
.pi-panel--aiarch .correct .choice-key{background:#5a7a60;color:#fff;border-color:#5a7a60}
.pi-panel--aiarch .incorrect .choice-key{background:#b85b50;color:#fff;border-color:#b85b50}
.pi-panel--aiarch .question-actions{display:flex;justify-content:space-between;align-items:center;margin-top:28px}
.pi-panel--aiarch .question-actions .btn:last-child{margin-left:auto}
.pi-panel--aiarch .keyboard-note{margin-top:18px;font-size:13px;color:var(--muted)}
.pi-panel--aiarch .keyboard-note kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;background:var(--paper-2);border:1px solid var(--line);border-radius:3px;padding:2px 6px;font-size:12px}
.pi-panel--aiarch .results-wrap{max-width:1120px;margin:auto;padding:60px 26px 100px}
.pi-panel--aiarch .results-top{text-align:center;max-width:760px;margin:auto}
.pi-panel--aiarch .results-top h1{font-size:64px}
.pi-panel--aiarch .score-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:14px;margin:42px 0}
.pi-panel--aiarch .score-card{border:1px solid var(--line);background:#fff;padding:25px;display:flex;flex-direction:column}
.pi-panel--aiarch .score-card span{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:800}
.pi-panel--aiarch .score-card strong{font-family:var(--serif);font-weight:400;font-size:50px;line-height:1.1;margin:8px 0}
.pi-panel--aiarch .score-card small{color:var(--muted)}
.pi-panel--aiarch .primary-score{background:#1c1b18;color:#fff}
.pi-panel--aiarch .primary-score span,.pi-panel--aiarch .primary-score small{color:#bbb6ad}
.pi-panel--aiarch .results-section{border-top:1px solid var(--line);padding:42px 0}
.pi-panel--aiarch .results-section h2{font-size:36px}
.pi-panel--aiarch .domain-result{display:grid;grid-template-columns:minmax(0,1fr) 80px 260px;gap:18px;align-items:center;padding:15px 0}
.pi-panel--aiarch .domain-result .bar i{background:var(--green)}
.pi-panel--aiarch .results-section-head{display:flex;justify-content:space-between;align-items:center}
.pi-panel--aiarch .filter-row{display:flex;gap:6px}
.pi-panel--aiarch .chip{border:1px solid var(--line);background:#fff;padding:7px 12px;border-radius:999px}
.pi-panel--aiarch .chip.active{background:var(--ink);color:#fff}
.pi-panel--aiarch .review-list{display:grid;gap:12px}
.pi-panel--aiarch .review-item{border:1px solid var(--line);background:#fff}
.pi-panel--aiarch .review-item summary{cursor:pointer;padding:18px 20px;display:flex;justify-content:space-between;gap:20px;font-weight:700}
.pi-panel--aiarch .review-item .review-body{padding:0 20px 22px;color:#48423a}
.pi-panel--aiarch .review-item.correct summary{border-left:5px solid #5a7a60}
.pi-panel--aiarch .review-item.incorrect summary{border-left:5px solid #b85b50}
.pi-panel--aiarch .review-answer{padding:10px 12px;margin:7px 0;background:#f4f1ea}
.pi-panel--aiarch .review-answer.user-wrong{background:#fff0ed}
.pi-panel--aiarch .review-answer.right{background:#edf6ee}
.pi-panel--aiarch .results-actions{display:flex;flex-wrap:wrap;gap:10px}
.pi-panel--aiarch .modal{border:0;border-radius:8px;max-width:640px;width:calc(100% - 32px);padding:0;box-shadow:0 28px 90px rgba(0,0,0,.35)}
.pi-panel--aiarch .modal::backdrop{background:rgba(20,18,14,.66)}
.pi-panel--aiarch .modal form{padding:34px;position:relative}
.pi-panel--aiarch .modal h2{font-size:38px}
.pi-panel--aiarch .modal-close{position:absolute;right:18px;top:15px;border:0;background:transparent;font-size:30px}
.pi-panel--aiarch .modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:26px}
.pi-panel--aiarch .check-row{display:flex;gap:10px;align-items:center;margin-top:20px}
.pi-panel--aiarch .glossary-modal{max-width:760px}
.pi-panel--aiarch .search-field{display:grid;gap:7px;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
.pi-panel--aiarch .search-field input{padding:12px;border:1px solid var(--line)}
.pi-panel--aiarch .glossary-list{max-height:55vh;overflow:auto;margin-top:18px}
.pi-panel--aiarch .glossary-item{padding:14px 0;border-top:1px solid var(--line)}
.pi-panel--aiarch .glossary-item dt{font-weight:800}
.pi-panel--aiarch .glossary-item dd{margin:5px 0 0;color:var(--muted)}
.pi-panel--aiarch [data-tooltip]{position:relative}
.pi-panel--aiarch [data-tooltip]:hover::after,.pi-panel--aiarch [data-tooltip]:focus-visible::after{content:attr(data-tooltip);position:absolute;z-index:100;bottom:calc(100% + 10px);left:50%;transform:translateX(-50%);width:270px;background:#171712;color:#fff;padding:10px 12px;border-radius:4px;font-size:12px;font-weight:400;line-height:1.45;box-shadow:var(--shadow);pointer-events:none}
.pi-panel--aiarch .toast{position:fixed;right:24px;bottom:24px;background:#171712;color:#fff;padding:12px 16px;border-radius:4px;opacity:0;transform:translateY(10px);transition:.2s;z-index:200}
.pi-panel--aiarch .toast.show{opacity:1;transform:none}
.pi-panel--aiarch .hidden{display:none!important}
@media(max-width:960px){.pi-panel--aiarch .topbar nav{display:none}
.pi-panel--aiarch .hero-grid{grid-template-columns:1fr}
.pi-panel--aiarch .scenario-grid,.pi-panel--aiarch .course-grid{grid-template-columns:1fr 1fr}
.pi-panel--aiarch .quiz-shell{grid-template-columns:1fr}
.pi-panel--aiarch .quiz-sidebar{position:static;height:auto;display:none}
.pi-panel--aiarch .quiz-header{padding:16px 20px}
.pi-panel--aiarch .question-stage{padding:24px 20px 60px}
.pi-panel--aiarch .domain-row,.pi-panel--aiarch .domain-result{grid-template-columns:1fr 55px}
.pi-panel--aiarch .domain-row .bar,.pi-panel--aiarch .domain-result .bar{grid-column:1/-1}
.pi-panel--aiarch .score-grid{grid-template-columns:1fr}
.pi-panel--aiarch .question-card{padding:26px 22px}}
@media(max-width:620px){.pi-panel--aiarch .hero-wrap{padding-top:42px}
.pi-panel--aiarch h1{font-size:48px}
.pi-panel--aiarch .scenario-grid,.pi-panel--aiarch .course-grid{grid-template-columns:1fr}
.pi-panel--aiarch .topbar-inner{padding:14px 18px}
.pi-panel--aiarch .detail-grid{grid-template-columns:1fr 1fr}
.pi-panel--aiarch .question-actions{display:grid;grid-template-columns:1fr 1fr}
.pi-panel--aiarch .question-actions .btn:last-child{margin:0;grid-column:1/-1}
.pi-panel--aiarch .results-section-head{align-items:flex-start;gap:14px;flex-direction:column}
.pi-panel--aiarch .filter-row{flex-wrap:wrap}}
@media print{.pi-panel--aiarch .topbar,.pi-panel--aiarch .results-actions,.pi-panel--aiarch .filter-row,.pi-panel--aiarch .text-button{display:none!important}
.pi-panel--aiarch .view{display:none!important}
.pi-panel--aiarch #results{display:block!important}
.pi-panel--aiarch .results-wrap{padding:0}
.pi-panel--aiarch .review-item{break-inside:avoid}}
.pi-panel--aiarch .btn.subtle{border-color:var(--line);background:transparent;color:var(--ink)}
.pi-panel--aiarch .btn.subtle:hover:not(:disabled){background:var(--paper-2)}
.pi-panel--aiarch .btn:disabled{opacity:.5;cursor:not-allowed}
.pi-panel--aiarch .question-learning-tools{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;padding-top:18px;border-top:1px dashed var(--line)}
.pi-panel--aiarch .hint-panel,.pi-panel--aiarch .study-panel,.pi-panel--aiarch .current-note,.pi-panel--aiarch .spirit-panel{display:none;margin-top:14px;padding:14px 16px;border-radius:6px;font-size:14px;line-height:1.55;animation:aia-fadeDown .2s ease}
.pi-panel--aiarch .hint-panel.show,.pi-panel--aiarch .study-panel.show,.pi-panel--aiarch .current-note.show,.pi-panel--aiarch .spirit-panel.show{display:block}
.pi-panel--aiarch .hint-panel{border-left:4px solid var(--orange);background:#fff7f1}
.pi-panel--aiarch .study-panel{border-left:4px solid var(--purple);background:#f7f4f9}
.pi-panel--aiarch .current-note{border-left:4px solid var(--green);background:#f0f5f1}
.pi-panel--aiarch .spirit-panel{border-left:4px solid #7c3aed;background:#f5f0ff}
.pi-panel--aiarch .feedback{display:none;margin-top:18px;padding:16px 18px;border-radius:6px;font-size:14px;line-height:1.6}
.pi-panel--aiarch .feedback.show{display:block;animation:aia-fadeDown .2s ease}
.pi-panel--aiarch .feedback.good{background:#edf6ee;border-left:4px solid #5a7a60}
.pi-panel--aiarch .feedback.bad{background:#fff0ed;border-left:4px solid #b85b50}
.pi-panel--aiarch .feedback strong{display:block;margin-bottom:6px;font-size:16px}
.pi-panel--aiarch .review-hint{padding:10px 12px;background:#fff7f1;border-left:4px solid var(--orange);border-radius:0 6px 6px 0;margin-top:12px}
@keyframes aia-fadeDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@media(max-width:620px){.pi-panel--aiarch .question-learning-tools .btn{flex:1 1 45%}
.pi-panel--aiarch .question-learning-tools .btn#check-button{flex:1 1 100%}}
@media print{.pi-panel--aiarch .hint-panel,.pi-panel--aiarch .study-panel,.pi-panel--aiarch .question-learning-tools,.pi-panel--aiarch .feedback .review-hint{display:none!important}}
.pi-panel--aiarch .select-row{display:grid;gap:8px;margin-top:16px;font-size:14px;font-weight:600}
.pi-panel--aiarch .select-row select{padding:12px;border:1px solid var(--line);border-radius:4px;background:#fff;color:var(--ink);font-size:14px}
/* ============================================================================
   Vocabulary tooltip highlights (study mode only)
   ============================================================================ */
.pi-panel--aiarch .vocab-term{border-bottom:2px dotted var(--purple);cursor:help;position:relative;font-weight:600;color:#4a3065}
.pi-panel--aiarch .vocab-term:hover{background:rgba(105,87,122,.1)}
[data-theme="dark"] .pi-panel--aiarch .vocab-term{color:#c4b5fd;border-bottom-color:#a78bfa}
[data-theme="dark"] .pi-panel--aiarch .vocab-term:hover{background:rgba(167,139,250,.15)}
/* ============================================================================
   Purple Code inspired dark mode
   ============================================================================ */
[data-theme="dark"] .pi-panel--aiarch{--paper:#0d0618;--paper-2:#1a0f2e;--ink:#f0e6ff;--muted:#9b8ab0;--line:#2d1b4e;--white:#0d0618;--shadow:0 18px 55px rgba(0,0,0,.45)}
[data-theme="dark"] .pi-panel--aiarch .skip-link{background:#1a0f2e;color:var(--ink);border-color:var(--line)}
[data-theme="dark"] .pi-panel--aiarch .topbar{background:rgba(13,6,24,.96);border-color:var(--line)}
[data-theme="dark"] .pi-panel--aiarch .topbar nav a{color:var(--muted)}
[data-theme="dark"] .pi-panel--aiarch .unofficial-pill{background:#1a0f2e;border-color:#7c3aed;color:#c4b5fd}
[data-theme="dark"] .pi-panel--aiarch .lede{color:#b8a8d0}
[data-theme="dark"] .pi-panel--aiarch .btn{background:#1a0f2e;color:var(--ink);border-color:var(--line)}
[data-theme="dark"] .pi-panel--aiarch .btn.primary{background:#7c3aed;color:#fff;border-color:#7c3aed}
[data-theme="dark"] .pi-panel--aiarch .btn.primary:hover:not(:disabled){background:#6d28d9}
[data-theme="dark"] .pi-panel--aiarch .btn.secondary{background:#1a0f2e}
[data-theme="dark"] .pi-panel--aiarch .exam-card,[data-theme="dark"] .pi-panel--aiarch .scenario-card,[data-theme="dark"] .pi-panel--aiarch .course-grid article,[data-theme="dark"] .pi-panel--aiarch .question-card,[data-theme="dark"] .pi-panel--aiarch .score-card,[data-theme="dark"] .pi-panel--aiarch .review-item,[data-theme="dark"] .pi-panel--aiarch .chip,[data-theme="dark"] .pi-panel--aiarch .tip-card,[data-theme="dark"] .pi-panel--aiarch .faq-item,[data-theme="dark"] .pi-panel--aiarch .resource-card{background:#140a24;border-color:var(--line)}
[data-theme="dark"] .pi-panel--aiarch .chip.active{background:#7c3aed;color:#fff}
[data-theme="dark"] .pi-panel--aiarch .primary-score{background:#140a24;color:var(--ink);border-color:var(--line)}
[data-theme="dark"] .pi-panel--aiarch .primary-score span,[data-theme="dark"] .pi-panel--aiarch .primary-score small{color:var(--muted)}
[data-theme="dark"] .pi-panel--aiarch .icon-button{background:#1a0f2e;color:var(--ink);border-color:var(--line)}
[data-theme="dark"] .pi-panel--aiarch .timer{background:#1a0f2e;border-color:var(--line);color:var(--ink)}
[data-theme="dark"] .pi-panel--aiarch .answer-option{background:#140a24;border-color:var(--line);color:var(--ink)}
[data-theme="dark"] .pi-panel--aiarch .answer-option:hover{border-color:#7c3aed}
[data-theme="dark"] .pi-panel--aiarch .answer-option.selected{background:#2a1a4e;border-color:#a78bfa}
[data-theme="dark"] .pi-panel--aiarch .answer-option.correct{background:#1a2e1a;border-color:#5a9a60}
[data-theme="dark"] .pi-panel--aiarch .answer-option.incorrect{background:#2e1a1a;border-color:#b85b50}
[data-theme="dark"] .pi-panel--aiarch .hint-panel{background:#2a1f18;border-left-color:var(--orange)}
[data-theme="dark"] .pi-panel--aiarch .study-panel{background:#1a1028;border-left-color:#a78bfa}
[data-theme="dark"] .pi-panel--aiarch .spirit-panel{background:#1a1028;border-left-color:#7c3aed}
[data-theme="dark"] .pi-panel--aiarch .current-note{background:#1a2a1e}
[data-theme="dark"] .pi-panel--aiarch .feedback.good{background:#1a2e1a}
[data-theme="dark"] .pi-panel--aiarch .feedback.bad{background:#2e1a1a}
[data-theme="dark"] .pi-panel--aiarch .review-answer{background:#140a24}
[data-theme="dark"] .pi-panel--aiarch .review-answer.user-wrong{background:#2e1a1a}
[data-theme="dark"] .pi-panel--aiarch .review-answer.right{background:#1a2e1a}
[data-theme="dark"] .pi-panel--aiarch .select-row select{background:#1a0f2e;color:var(--ink);border-color:var(--line)}
[data-theme="dark"] .pi-panel--aiarch .modal form{background:#140a24}
[data-theme="dark"] .pi-panel--aiarch .modal::backdrop{background:rgba(13,6,24,.75)}
[data-theme="dark"] .pi-panel--aiarch .search-field input{background:#0d0618;color:var(--ink);border-color:var(--line)}
[data-theme="dark"] .pi-panel--aiarch .quiz-shell{background:#0a0514}
[data-theme="dark"] .pi-panel--aiarch .quiz-header{background:#0d0618}
[data-theme="dark"] .pi-panel--aiarch .quiz-sidebar{background:#0a0514}
[data-theme="dark"] .pi-panel--aiarch .scenario-context{background:#1a1028;color:#b8a8d0;border-left-color:#7c3aed}
[data-theme="dark"] .pi-panel--aiarch .detail-grid dd{color:var(--ink)}
[data-theme="dark"] .pi-panel--aiarch .text-button{color:#b8a8d0}
[data-theme="dark"] .pi-panel--aiarch .theme-toggle{color:var(--ink);border-color:var(--line)}
[data-theme="dark"] .pi-panel--aiarch .theme-toggle:hover{background:#1a0f2e}
[data-theme="dark"] .pi-panel--aiarch .source-note p{color:var(--muted)}
[data-theme="dark"] .pi-panel--aiarch .scenario-nav summary{color:#d0c0e8}
[data-theme="dark"] .pi-panel--aiarch .qdot{background:#140a24;color:#9b8ab0;border-color:#2d1b4e}
[data-theme="dark"] .pi-panel--aiarch .qdot.answered{background:#3d1f6e;border-color:#5b21b6;color:#fff}
[data-theme="dark"] .pi-panel--aiarch .qdot.current{outline-color:#a78bfa}
[data-theme="dark"] .pi-panel--aiarch .progress-track{background:#2d1b4e}
[data-theme="dark"] .pi-panel--aiarch .progress-track i{background:#a78bfa}
[data-theme="dark"] .pi-panel--aiarch .glossary-item dt{color:#c4b5fd}
[data-theme="dark"] .pi-panel--aiarch .keyboard-note kbd{background:#1a0f2e;border-color:var(--line);color:var(--muted)}
[data-theme="dark"] .pi-panel--aiarch h1 span{color:#c4b5fd}
[data-theme="dark"] .pi-panel--aiarch .eyebrow{color:#a78bfa}
[data-theme="dark"] .pi-panel--aiarch .question-number{color:#a78bfa}
[data-theme="dark"] .pi-panel--aiarch .resource-card:hover{border-color:#a78bfa}
[data-theme="dark"] .pi-panel--aiarch [data-tooltip]:hover::after,[data-theme="dark"] .pi-panel--aiarch [data-tooltip]:focus-visible::after{background:#1a0f2e;color:#f0e6ff;border:1px solid #2d1b4e}
/* ============================================================================
   New landing-page sections
   ============================================================================ */
.pi-panel--aiarch .tips-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.pi-panel--aiarch .tip-card{border:1px solid var(--line);background:#fff;padding:22px;border-radius:8px}
.pi-panel--aiarch .tip-card h3{font-family:var(--serif);font-size:18px;margin:0 0 10px;font-weight:400}
.pi-panel--aiarch .tip-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.55}
.pi-panel--aiarch .shortcuts-table{width:100%;border-collapse:collapse;margin-top:18px;font-size:14px}
.pi-panel--aiarch .shortcuts-table th,.pi-panel--aiarch .shortcuts-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)}
.pi-panel--aiarch .shortcuts-table th{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:800}
.pi-panel--aiarch .shortcuts-table kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;background:var(--paper-2);border:1px solid var(--line);border-radius:3px;padding:2px 6px;font-size:12px}
.pi-panel--aiarch .faq-list{display:grid;gap:12px;margin-top:24px}
.pi-panel--aiarch .faq-item{border:1px solid var(--line);background:#fff;border-radius:8px;overflow:hidden}
.pi-panel--aiarch .faq-item summary{cursor:pointer;padding:18px 20px;font-weight:700;font-size:15px;list-style:none}
.pi-panel--aiarch .faq-item summary::-webkit-details-marker{display:none}
.pi-panel--aiarch .faq-item p{padding:0 20px 18px;margin:0;color:var(--muted);font-size:14px;line-height:1.6}
.pi-panel--aiarch .resources-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px}
.pi-panel--aiarch .resource-card{border:1px solid var(--line);background:#fff;padding:22px;border-radius:8px;text-decoration:none;display:block;transition:.15s}
.pi-panel--aiarch .resource-card:hover{border-color:var(--orange);transform:translateY(-2px)}
.pi-panel--aiarch .resource-card h3{font-family:var(--serif);font-size:18px;margin:0 0 8px;font-weight:400;color:var(--ink)}
.pi-panel--aiarch .resource-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.55}
.pi-panel--aiarch .resource-card .resource-tag{display:inline-block;font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:800;color:var(--orange-dark);margin-bottom:10px}
@media(max-width:960px){.pi-panel--aiarch .tips-grid,.pi-panel--aiarch .resources-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.pi-panel--aiarch .tips-grid,.pi-panel--aiarch .resources-grid{grid-template-columns:1fr}}