:root{--paper:#f5f4ee;--ink:#1b241f;--muted:#616a61;--line:#d5d8ce;--accent:#c1f36b;--green:#275d34;--red:#8b352b;--white:#fffef9}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}button,select{font:inherit;color:inherit}button,a,select{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-underline-offset:4px}button{border:0}button:disabled{cursor:default}button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #476d24;outline-offset:5px}main:focus{outline:none}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.1;letter-spacing:-.045em}p+p{margin-top:12px}.masthead{padding:28px 5%;display:flex;align-items:center;gap:32px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:25px;line-height:.97;font-weight:850;letter-spacing:-1.2px;text-decoration:none}.brand-mark{display:grid;place-items:center;width:48px;height:48px;background:var(--accent);border-radius:50%;font-size:35px;font-weight:500}.brand-period{color:#476d24}.masthead nav{display:flex;gap:24px;margin-left:auto}.nav-link{background:none;padding:9px 0;font-size:14px;border-bottom:2px solid transparent}.nav-link.active{border-color:var(--ink);font-weight:700}.prototype{font-size:10px;letter-spacing:1.5px;color:var(--muted);margin-left:35px}.prototype span{color:#476d24;margin-left:8px}.eyebrow{font-size:11px;letter-spacing:1.65px;text-transform:uppercase;font-weight:750;color:var(--muted)}.home{padding:65px 5% 0;max-width:1600px;margin:auto;animation:arrive .35s ease-out}.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}.hero h1{font-size:clamp(56px,6.3vw,96px);font-weight:800;line-height:1;max-width:780px;margin:22px 0}.hero h1 span{font-family:Georgia,serif;font-weight:400;font-style:italic;letter-spacing:-.065em}.hero .intro{font-size:18px;max-width:475px;color:var(--muted);line-height:1.65}.editorial-art{position:relative;background:var(--accent);aspect-ratio:1.12;max-width:530px;width:100%;justify-self:end;display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:2px}.editorial-art:before,.editorial-art:after{display:none;content:'';position:absolute;border:1px solid #1b241f35;width:85%;height:85%;border-radius:50%;transform:rotate(-24deg) scaleX(.6)}.editorial-art:after{transform:rotate(24deg) scaleX(.6)}.art-num{font-size:clamp(170px,21vw,320px);font-weight:850;letter-spacing:-.09em;line-height:1;position:relative;z-index:1;margin-left:-18px}.art-top,.art-bottom{position:absolute;left:28px;right:28px;display:flex;justify-content:space-between;font-size:10px;letter-spacing:1.7px;font-weight:700;z-index:2}.art-top{top:24px}.art-bottom{bottom:24px}.round-setup{display:flex;align-items:end;gap:25px;max-width:560px;margin-top:36px}.round-setup>div{flex:1}label{font-size:12px;font-weight:700;display:block;margin-bottom:8px}select{width:100%;background:transparent;border:0;border-bottom:1px solid var(--ink);padding:12px 25px 12px 0;min-height:48px;border-radius:0}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:24px;font-weight:700;padding:15px 24px;min-height:52px;border-radius:3px}.primary{background:var(--ink);color:var(--white)}.primary:hover{background:#334637}.primary:disabled{background:#7c8279;opacity:.75}.primary.lime{background:var(--accent);color:var(--ink)}.primary.lime:hover{background:#b2e65b}.secondary{background:transparent;border:1px solid #a5aca0;gap:12px}.secondary:hover{background:#e9ecdf}.quiet{background:none;text-decoration:underline;text-underline-offset:5px;padding:12px 0;font-size:13px;color:var(--muted)}.fine{font-size:12px;color:var(--muted);line-height:1.65}.edition-note{margin-top:18px;max-width:530px}.strip{display:flex;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:50px;padding:22px 0}.strip>div{flex:1;padding:0 28px;border-left:1px solid var(--line)}.strip>div:first-child{padding-left:0;border:0}.strip strong{font-size:15px;display:block}.strip span{font-size:12px;color:var(--muted)}.weekly-note{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:30px 0}.weekly-note h2{font-size:21px;letter-spacing:-.03em}.weekly-note p{font-size:13px;color:var(--muted);max-width:600px;margin-top:5px}.workspace{max-width:1120px;margin:auto;padding:48px 36px 70px;animation:arrive .25s ease-out}.quiz-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:16px}.progress-label{font-size:12px;color:var(--muted)}.progress-label strong{color:var(--ink)}.track{height:4px;background:#dce1d3;margin-bottom:42px;overflow:hidden}.track>div{height:100%;background:#668939;transition:width .25s}.quiz-layout{display:grid;grid-template-columns:170px minmax(0,1fr);gap:45px}.question-number{font-size:112px;line-height:.9;letter-spacing:-.09em;font-weight:800;color:#b9c1b0;margin-top:8px}.quiz-aside .eyebrow{margin-top:20px;font-size:10px}.quiz-aside .fine{margin-top:12px}.question h1{font-size:clamp(26px,3vw,38px);line-height:1.22;margin:10px 0 29px;font-weight:700}.answers{display:grid;gap:10px}.answer{width:100%;display:flex;align-items:center;text-align:left;gap:18px;min-height:65px;padding:16px 20px;border:1px solid #bfc6b8;border-radius:4px;background:transparent;transition:background .15s,border-color .15s,transform .15s;font-size:15px}@media(hover:hover) and (pointer:fine){.answer:hover:not(:disabled){border-color:var(--ink)}}.letter{display:grid;place-items:center;width:29px;height:29px;flex:none;background:#e6e9df;font-size:12px;font-weight:700;border-radius:3px}.answer.selected{border:2px solid var(--ink);padding:15px 19px;background:var(--accent)}.answer.selected .letter{background:var(--ink);color:var(--white)}.answer.correct{background:#e4eedc;border-color:var(--green)}.answer.wrong{background:#f4e5dd;border-color:var(--red)}.answer-status{margin-left:auto;font-size:12px;font-weight:700;flex:none}.feedback{border-left:3px solid var(--green);padding:5px 0 5px 20px;margin-top:26px;animation:arrive .25s ease-out}.feedback.wrong{border-color:var(--red)}.feedback h2{font-size:19px;letter-spacing:-.02em}.feedback p{font-size:14px;margin-top:9px}.source-links{font-size:12px;color:var(--muted);margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}.quiz-actions{display:flex;align-items:center;justify-content:space-between;margin-top:26px;gap:15px}.instructions{margin-top:16px}.archive-head{margin-bottom:35px}.archive-head h1{font-size:clamp(40px,5vw,62px);margin:16px 0}.archive-head p{max-width:640px;color:var(--muted)}.archive-row{display:grid;grid-template-columns:110px 1fr 150px;gap:25px;padding:24px 0;border-top:1px solid var(--line);align-items:center}.archive-row h2{font-size:21px;font-weight:650;letter-spacing:-.03em}.archive-row p{font-size:12px;color:var(--muted);margin-top:6px}.archive-date{font-size:12px;color:var(--muted)}.archive-action{justify-self:end;font-size:13px}.archive-action button{padding:12px 18px;min-height:46px}.archive-action a{display:inline-block;padding:10px 0}.badge{font-size:10px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;color:#426324;margin-left:10px}.result-head{display:grid;grid-template-columns:1fr auto;gap:25px;align-items:center;padding-bottom:35px;border-bottom:1px solid var(--line)}.result-head h1{font-size:clamp(38px,4vw,56px);margin:16px 0}.result-head p{color:var(--muted);max-width:530px}.score{width:190px;height:190px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:82px;letter-spacing:-6px;font-weight:800;line-height:1}.score span{font-size:28px;letter-spacing:-1px;margin-top:32px;margin-left:4px}.results-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;margin:38px 0}.results-grid h2,.review h2{font-size:27px;margin:10px 0 14px}.results-grid p{font-size:13px;color:var(--muted)}.fields{display:grid;gap:20px;margin:25px 0}.demo-label{background:#e9e7de;color:#555949;padding:8px 12px;font-size:11px;font-weight:750;display:inline-block;letter-spacing:.4px}.bars{padding-top:20px}.bar{margin:20px 0}.bar-label{display:flex;justify-content:space-between;gap:15px;font-size:12px;margin-bottom:7px}.bar-track{height:8px;background:#dce1d3}.bar-fill{height:100%;background:var(--ink)}.bar-fill.synthetic{background:#9ca58c}.review{border-top:1px solid var(--line);padding-top:30px}.review details{border-bottom:1px solid var(--line);padding:18px 0}.review summary{cursor:pointer;font-size:14px;line-height:1.5;font-weight:650}.review details p{font-size:14px;margin-top:16px}.review .mark{font-size:12px;color:var(--green)}.review .mark.no{color:var(--red)}.bottom-actions{display:flex;justify-content:space-between;gap:20px;margin-top:32px}footer{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:25px 5%;font-size:11px;color:var(--muted)}.loading{padding:70px 5%}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;top:0;transform:translateY(-200%);left:20px;z-index:100;background:var(--accent);padding:12px 20px}.skip:focus{top:12px;transform:none}@keyframes arrive{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@media(min-width:1500px){.home{padding-top:80px}}@media(max-width:900px){.hero-grid{grid-template-columns:1.2fr .85fr;gap:25px}.hero h1{font-size:60px}.editorial-art{aspect-ratio:.85}.art-num{font-size:200px}.round-setup{flex-wrap:wrap}.round-setup .primary{width:100%}.quiz-layout{grid-template-columns:100px 1fr;gap:30px}.question-number{font-size:80px}.prototype{margin-left:0}.results-grid{gap:35px}}@media(max-width:650px){.masthead{padding:19px 20px;flex-wrap:wrap;gap:18px}.brand{font-size:22px}.brand-mark{width:40px;height:40px;font-size:30px}.masthead nav{order:3;width:100%;gap:26px}.prototype{margin-left:auto;font-size:9px}.nav-link{font-size:13px;padding:3px 0 8px}.home{padding:34px 20px 0}.hero-grid{grid-template-columns:1fr;gap:26px}.hero h1{font-size:48px;max-width:420px;margin:18px 0}.hero .intro{font-size:16px}.editorial-art{aspect-ratio:1.9;max-width:none;justify-self:stretch}.art-num{font-size:130px;transform:translateY(2px)}.art-top,.art-bottom{left:20px;right:20px;font-size:9px}.art-top{top:14px}.art-bottom{bottom:14px}.editorial-art:before,.editorial-art:after{display:none;width:60%;height:140%}.round-setup{margin-top:25px;gap:18px}.round-setup .primary{width:auto;gap:16px;padding:14px 19px}.round-setup>div{min-width:150px}.strip{margin-top:28px;padding:19px 0}.strip>div{padding:0 12px}.strip strong{font-size:13px}.strip span{font-size:11px}.weekly-note{align-items:flex-start;gap:20px;padding:26px 0}.weekly-note .quiet{white-space:nowrap}.workspace{padding:30px 20px 45px}.quiz-top{align-items:flex-start}.quiz-top .quiet{padding:0;font-size:12px}.track{margin-bottom:25px}.quiz-layout{grid-template-columns:1fr;gap:14px}.quiz-aside{display:flex;align-items:center;gap:20px}.question-number{font-size:48px;margin:0}.quiz-aside .eyebrow{margin:0}.quiz-aside .fine{display:none}.question h1{font-size:26px;margin:9px 0 24px}.answer{padding:14px 13px;font-size:14px;gap:12px}.answer.selected{padding:13px 12px}.answer-status{font-size:10px;max-width:70px}.quiz-actions{gap:12px}.quiz-actions .primary{gap:12px;padding:14px 20px}.result-head{grid-template-columns:1fr;gap:26px}.score{width:145px;height:145px;font-size:65px}.score span{font-size:24px;margin-top:26px}.results-grid{grid-template-columns:1fr;gap:14px}.bars{padding-top:0}.fields{grid-template-columns:1fr 1fr;gap:20px}.archive-row{grid-template-columns:1fr auto;gap:10px;padding:23px 0}.archive-date{grid-column:1 / -1}.archive-row h2{font-size:19px}.archive-action{align-self:center}.badge{display:block;margin:8px 0 0}.bottom-actions{flex-direction:column;gap:12px}.bottom-actions>button{width:100%}footer{flex-direction:column;align-items:flex-start;gap:9px;padding:24px 20px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Opus design review: editorial continuity and functional state clarity. */
.voice{font-family:Georgia,serif;font-style:italic;font-weight:400;letter-spacing:-.04em}
.workspace.stay{animation:none}.feedback .voice{font-size:24px}
.track{height:7px;background:none;overflow:visible}.track>.segments{display:grid;grid-template-columns:repeat(10,1fr);gap:5px;height:7px;background:none}
.segments span{background:var(--line);height:7px}.segments .now{background:var(--ink)}.segments .hit{background:var(--green)}.segments .miss{background:var(--red)}
.bar-fill.synthetic{background:repeating-linear-gradient(135deg,#9ca58c 0 4px,transparent 4px 8px)}
.comparison-demo{border-bottom:1px solid var(--line);margin-top:32px;padding:22px 0}.comparison-demo>summary{cursor:pointer;font-weight:650;font-size:15px;line-height:1.6}.comparison-demo .demo-label{margin-left:10px}.comparison-demo .results-grid{margin-bottom:10px}
.eyebrow,.fine,.prototype,.archive-date,.source-links,.progress-label{font-size:12px}.art-top,.art-bottom{font-size:11px}.letter{font-size:13px}
@media(max-width:650px){
 [data-view=quiz] .masthead{padding:15px 20px}[data-view=quiz] .masthead nav,[data-view=quiz] .prototype{display:none}
 [data-view=quiz] .workspace{padding-top:24px}.quiz-actions{position:sticky;bottom:0;background:var(--paper);z-index:5;padding:12px 0 calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--line)}
 .instructions{display:none}.question h1{margin-top:6px}.quiz-aside .eyebrow{font-size:11px;line-height:1.7}.quiz-aside{gap:18px}.question-number{font-size:42px}
 .strip{flex-direction:column;gap:14px}.strip>div,.strip>div:first-child{border-left:0;padding:0;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.strip strong{font-size:14px}.strip span{font-size:12px}
 .editorial-art{aspect-ratio:auto;height:104px}.art-num{font-size:84px;transform:none}.art-top,.art-bottom{font-size:10px;left:16px;right:16px}.art-top{top:12px}.art-bottom{bottom:12px}.art-num{font-size:78px}
 .answer-status{font-size:11px}.comparison-demo .demo-label{margin:10px 0 0;display:block;width:max-content}.fields{grid-template-columns:1fr}.result-head{padding-bottom:26px}.review{margin-top:28px}
}

/* Plain copy pass: give the descriptive heading a calmer scale. */
.hero h1{font-size:clamp(48px,5.3vw,78px);line-height:1.06}.hero h1 span{white-space:nowrap}
@media(max-width:650px){.hero h1{font-size:40px}}
/* Contents-page direction selected from the Opus alternatives. */
.masthead{max-width:1300px;margin:auto}.workspace{max-width:1180px}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:25px;margin:8px 0 44px}.page-heading h1{font-size:clamp(36px,4.2vw,60px);margin-top:15px}.count-tag{background:var(--accent);padding:10px 18px;font-size:13px;font-weight:700;white-space:nowrap}.edition-row{display:grid;grid-template-columns:90px 1fr auto;gap:30px;align-items:center;padding:35px 0;border-top:1px solid var(--line)}.edition-row:last-child{border-bottom:1px solid var(--line)}.edition-number{font-size:54px;line-height:1;letter-spacing:-4px;font-weight:750;color:#768369}.edition-row h2{font-size:30px;font-weight:700;margin-bottom:8px}.edition-row p{font-size:14px;color:var(--muted)}.edition-state{font-size:12px;display:inline-block;margin-top:12px;color:var(--muted)}.edition-buttons{display:flex;gap:20px;align-items:center}.edition-buttons .primary{min-width:120px}.index-bottom{display:flex;justify-content:space-between;padding-top:22px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:20px}.section-heading h2{font-size:28px}.sub-count{font-size:16px;font-weight:400;color:var(--muted);margin-left:8px}.history-section{padding-bottom:40px}.attempt-row{display:grid;grid-template-columns:1fr 90px 140px;align-items:center;gap:25px;padding:18px 0;border-top:1px solid var(--line)}.attempt-row>div:first-child span{display:block;font-size:12px;color:var(--muted);margin-top:3px}.attempt-score{font-size:24px;letter-spacing:-1px}.attempt-actions{display:flex;gap:20px;justify-content:end}.history-empty{padding:20px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.clear-controls{display:flex;align-items:center;gap:18px;font-size:13px}.leaderboard-section{border-top:2px solid var(--ink);padding-top:30px;scroll-margin-top:20px}.demo-label{text-transform:uppercase;font-size:11px;letter-spacing:1px;border:1px solid #b8beb0;background:transparent;color:var(--muted);padding:5px 10px}.board-note{font-size:13px;color:var(--muted)}.board-filters{display:grid;grid-template-columns:1fr 1fr 1fr;gap:28px;margin:25px 0 35px}.comparison-top{display:grid;grid-template-columns:1fr 1fr;gap:35px;padding:25px;background:#e8eddc}.comparison-top>div{display:flex;flex-direction:column;gap:8px}.stat-label{font-size:12px;font-weight:700}.comparison-top strong{font-size:42px;letter-spacing:-2px;line-height:1.1}.comparison-top small{font-size:19px;color:var(--muted);letter-spacing:-.6px;margin-left:4px}.comparison-bars{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin:10px 0 25px}.table-wrap{overflow-x:auto}.leader-table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}.leader-table thead{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}.leader-table th,.leader-table td{padding:16px 18px;border-bottom:1px solid var(--line)}.leader-table thead th{font-weight:650}.leader-table tbody th{font-weight:650}.leader-table td:first-child,.leader-table th:first-child{width:75px;padding-left:0}.leader-table td:last-child,.leader-table th:last-child{text-align:right}.leader-table .group-column{font-size:12px;color:var(--muted)}.your-row{background:var(--accent)}.your-row td:first-child{padding-left:18px}.local-label{font-size:10px;margin-left:10px;font-weight:400}.table-gap td{padding:8px}.result-links{display:flex;gap:25px;align-items:center;margin-top:25px}.save-state{margin-top:15px}.storage-error{font-size:13px;color:var(--red);margin-bottom:15px}
@media(max-width:650px){.masthead nav{gap:28px}.page-heading{margin:5px 0 30px;align-items:end}.page-heading h1{font-size:37px}.count-tag{font-size:11px;padding:8px 10px}.edition-row{grid-template-columns:45px 1fr;gap:16px;padding:25px 0}.edition-number{font-size:35px;letter-spacing:-2px}.edition-row h2{font-size:24px}.edition-row p{font-size:12px}.edition-buttons{grid-column:2;gap:25px;margin-top:0;justify-content:space-between}.edition-buttons .primary{min-width:110px}.index-bottom{gap:15px;flex-wrap:wrap}.attempt-row{grid-template-columns:1fr auto;gap:12px}.attempt-actions{grid-column:1/-1;justify-content:start;gap:30px}.attempt-score{font-size:23px}.clear-controls{gap:12px;flex-wrap:wrap}.section-heading h2{font-size:24px}.board-filters{grid-template-columns:1fr 1fr;gap:20px}.board-filters>div:first-child{grid-column:1/-1}.comparison-top{padding:18px;gap:18px}.comparison-top strong{font-size:35px}.comparison-top .fine{font-size:11px}.comparison-bars{grid-template-columns:1fr;gap:0;margin-top:5px}.leader-table .group-column{display:none}.leader-table th,.leader-table td{padding:15px 12px}.local-label{display:block;margin:4px 0 0}.leader-table td:first-child{width:45px}.result-links{gap:20px;flex-wrap:wrap}.history-section{padding-bottom:30px}}
.edition-buttons .primary{margin-left:auto}