:root{color-scheme:light;--page: #ffffff;--ink: #1a1a1a;--muted: #444842;--line: #d9d9d9;--soft: #f5f5f5;--mark: #fff3a0;--key: #0e6b3c;--danger: #9f2d2d;--spruce: #1f4e4a;--nav-study: #1f4e4a;--nav-study-on: #ffffff;--nav-review: #8d4e00;--nav-review-on: #ffffff;--nav-progress: #0d47a1;--nav-progress-on: #ffffff;--nav-settings: #6a1b9a;--nav-settings-on: #ffffff;--shell-a: #d7ebe6;--shell-b: #eef3f1;--shell-c: #d3e3e6;--card: #ffffff;--card-edge: #5f7f7a;--how-bg: #1f4e4a;--how-ink: #ffffff;--focus: #1f4e4a;--thanks-bg: #b85c38;--thanks-ink: #ffffff;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--page: #121212;--ink: #e8e8e8;--muted: #c4c8be;--line: #333333;--soft: #1e1e1e;--mark: #6b5a1e;--key: #b7e7c9;--danger: #ffb4ab;--nav-study: #9dcec4;--nav-study-on: #062e2a;--nav-review: #ffb77a;--nav-review-on: #4a2800;--nav-progress: #a8c8ff;--nav-progress-on: #002f64;--nav-settings: #e0c4ff;--nav-settings-on: #3b1464;--spruce: #9dcec4;--shell-a: #10211f;--shell-b: #17302c;--shell-c: #15242a;--card: #243230;--card-edge: #8fb3ad;--how-bg: #9dcec4;--how-ink: #062e2a;--focus: #9dcec4}}:root[data-theme=dark]{color-scheme:dark;--page: #121212;--ink: #e8e8e8;--muted: #c4c8be;--line: #333333;--soft: #1e1e1e;--mark: #6b5a1e;--key: #b7e7c9;--danger: #ffb4ab;--nav-study: #9dcec4;--nav-study-on: #062e2a;--nav-review: #ffb77a;--nav-review-on: #4a2800;--nav-progress: #a8c8ff;--nav-progress-on: #002f64;--nav-settings: #e0c4ff;--nav-settings-on: #3b1464;--spruce: #9dcec4;--shell-a: #10211f;--shell-b: #17302c;--shell-c: #15242a;--card: #243230;--card-edge: #8fb3ad;--how-bg: #9dcec4;--how-ink: #062e2a;--focus: #9dcec4}:root[data-theme=light]{color-scheme:light;--page: #ffffff;--ink: #1a1a1a;--muted: #444842;--line: #d9d9d9;--soft: #f5f5f5;--mark: #fff3a0;--key: #0e6b3c;--danger: #9f2d2d;--nav-study: #1f4e4a;--nav-study-on: #ffffff;--nav-review: #8d4e00;--nav-review-on: #ffffff;--nav-progress: #0d47a1;--nav-progress-on: #ffffff;--nav-settings: #6a1b9a;--nav-settings-on: #ffffff;--spruce: #1f4e4a;--shell-a: #d7ebe6;--shell-b: #eef3f1;--shell-c: #d3e3e6;--card: #ffffff;--card-edge: #5f7f7a;--how-bg: #1f4e4a;--how-ink: #ffffff;--focus: #1f4e4a}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background-color:var(--shell-b);background-image:linear-gradient(165deg,var(--shell-a) 0%,var(--shell-b) 46%,var(--shell-c) 100%);background-repeat:no-repeat;background-size:100% 100%;color:var(--ink)}body{min-height:100dvh}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;opacity:.14;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:180px 180px;mix-blend-mode:overlay}.app{position:relative;z-index:1}:focus:not(:focus-visible){outline:none}:focus-visible{outline:3px solid var(--focus);outline-offset:3px}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}button,input{font:inherit;color:inherit}a{color:var(--spruce)}h1{font-size:1.6rem;line-height:1.2;margin:0 0 .4rem}h2{font-size:1.05rem;margin:.8rem 0 .3rem}h3{font-size:.95rem;margin:.45rem 0 .15rem}p{margin:.25rem 0}.app{min-height:100dvh}.frame{min-height:100dvh;display:grid;grid-template-columns:76px minmax(0,1fr);align-items:start}.frame>main{grid-column:2;grid-row:1;min-width:0}main{padding:16px 14px 24px;max-width:820px;margin:0 auto;width:100%}.kicker{letter-spacing:.08em;text-transform:uppercase;color:var(--spruce);font-size:.78rem;font-weight:650}.lede,.muted{color:var(--muted)}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:10px 0}.report-wrap{overflow-x:auto}table.report{width:100%;border-collapse:collapse}table.report th,table.report td{text-align:start;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}table.report tr.levels td{color:var(--muted);font-size:.85rem}table.report tr.levels span{display:inline-block;margin:0 12px 4px 0}.flag{color:var(--danger)}#level{max-height:calc(100dvh - 24px);overflow:auto}#level-skip{display:block;width:100%;margin-top:8px;border:1px solid var(--line);background:var(--page);color:var(--ink);border-radius:10px;padding:10px 12px;font-weight:650}.stat{text-align:left;width:100%}.split-stats{display:grid;grid-template-columns:1fr 1fr;gap:8px}.row,.chips{display:flex;flex-wrap:wrap;gap:6px;align-items:center}label{display:block;margin:8px 0}input[type=number],input[type=password]{width:8rem;padding:8px;border:1px solid var(--line);border-radius:8px;background:var(--page);font-size:16px}.version{-webkit-user-select:none;user-select:none}.check{display:flex;gap:8px;align-items:center}button,.chip{border:1px solid var(--line);background:var(--page);border-radius:999px;padding:6px 10px}button.primary,.chip.on,.letter.on{background:var(--ink);color:var(--page);border-color:var(--ink)}button.tonal{display:block;width:100%;background:var(--soft);border-radius:10px;padding:12px;margin-top:10px;font-weight:650}button.exam{display:block;width:100%;min-height:64px;margin-top:10px;padding:16px 18px;border-radius:14px;background:var(--soft);font-size:1.2rem;font-weight:750}button.exam.on{background:var(--ink);color:var(--page);border-color:var(--ink)}button.advanced{margin-top:4px}.quiz-body>.split,.quiz-body>.pane{flex:1;min-width:0}button.text,button.otext,button.letter{border:0;background:transparent}button.primary{display:block;width:100%;border-radius:10px;padding:12px;margin-top:10px;font-weight:650}button.thanks{display:flex;flex-direction:column;align-items:flex-start;gap:2px;width:100%;min-height:48px;margin-top:14px;padding:16px;border:0;border-radius:16px;background:var(--thanks-bg);color:var(--thanks-ink);text-align:left}.thanks-title{font-size:1.35rem;font-weight:750;line-height:1.2}.thanks-note{font-size:.95rem;font-weight:550;line-height:1.35}.tracks{margin-top:16px}.tracks h2{margin-bottom:4px}.names{font-size:1.2rem;line-height:1.6}.sheet{position:fixed;left:0;right:0;bottom:0;z-index:30;max-height:80dvh;overflow:auto;background:var(--page);border-top:1px solid var(--line);padding:16px 16px 28px;box-shadow:0 -8px 24px #0000001f}.flag-reasons{display:flex;flex-direction:column;align-items:stretch;gap:8px;margin:12px 0}.flag-reasons .chip{text-align:left;border-radius:12px}.qhead{display:flex;align-items:center;gap:8px;margin-bottom:6px}.qhead .flag-question{margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-weight:700;white-space:nowrap}.qhead .flag-question svg{width:18px;height:18px;fill:currentColor}.flag-explain{margin:2px 0 8px}.flag-switch{display:block;margin-top:8px;padding-left:0}textarea{width:100%;box-sizing:border-box;font:inherit;padding:8px;border:1px solid var(--line);border-radius:8px;background:var(--page)}button:disabled{opacity:.45}.tabs{grid-column:1;grid-row:1;position:sticky;top:0;height:100dvh;display:flex;flex-direction:column;gap:6px;padding:10px 6px calc(10px + env(safe-area-inset-bottom));background:var(--shell-b);background:color-mix(in srgb,var(--shell-b) 88%,var(--card));border-right:1px solid var(--line);z-index:4}.tabs a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:48px;text-align:center;text-decoration:none;font-size:.68rem;font-weight:700;line-height:1.1;padding:8px 2px;border-radius:14px}.tabs a svg{width:22px;height:22px;fill:currentColor}.tabs a.study{color:var(--nav-study)}.tabs a.review{color:var(--nav-review)}.tabs a.progress{color:var(--nav-progress)}.tabs a.settings{color:var(--nav-settings)}.tabs a.study.on{background:var(--nav-study);color:var(--nav-study-on)}.tabs a.review.on{background:var(--nav-review);color:var(--nav-review-on)}.tabs a.progress.on{background:var(--nav-progress);color:var(--nav-progress-on)}.tabs a.settings.on{background:var(--nav-settings);color:var(--nav-settings-on)}.choices{display:flex;flex-direction:column;gap:8px;margin-top:8px}.choices button{width:100%;border:1px solid var(--line);background:var(--page);color:var(--ink);border-radius:10px;padding:10px 12px;font-weight:650}.how{max-width:40rem;margin:0 auto;padding:28px 20px 48px}.how h1{margin-bottom:8px}.how li{margin:8px 0}.evidence{padding-left:1.2rem}.evidence li{margin:8px 0}button.evidence{background:none;border:0;padding:0;color:var(--spruce);text-decoration:underline;font:inherit;cursor:pointer}.forecast{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}.forecast span{background:var(--page);border-radius:8px;padding:6px 8px}.confidence{display:flex;gap:8px;margin:8px 0 12px}.confidence button{flex:1}.help-card{padding:12px 14px}.help-card p{margin:0}.similar{margin-top:8px}@media(min-width:720px){.frame{grid-template-columns:228px minmax(0,1fr)}.tabs{padding:16px 12px;gap:8px}.tabs a{flex-direction:row;justify-content:flex-start;gap:12px;font-size:1rem;padding:12px 14px;border-radius:16px;text-align:start}}.app.quiz-open{height:100dvh;display:flex;flex-direction:column;background:var(--page)}.quiz-frame,.pane,.scroller,.top,.qindex{background:var(--page)}.app.quiz-open>.pane,.app.quiz-open>.split,.app.quiz-open>main{flex:1;min-height:0}.app.quiz-open>main{overflow:auto}.top{display:flex;flex-wrap:wrap;gap:6px;align-items:center;padding:calc(6px + env(safe-area-inset-top)) 8px 6px;border-bottom:1px solid var(--line)}.top div{display:flex;flex-direction:column;flex:1;min-width:0}.top span,.timer{color:var(--muted);font-size:.8rem}.top button{padding:6px 8px}.pane{position:relative;flex:1;min-height:0;display:flex}.scroller{overflow:auto;flex:1;padding:6px 12px 18px}.fade{pointer-events:none;position:absolute;left:0;right:0;bottom:0;height:28px;opacity:0;background:linear-gradient(transparent,var(--page))}.fade.show{opacity:1}.split{display:grid;grid-template-columns:1.15fr .85fr;flex:1;min-height:0}.split .pane+.pane{border-left:1px solid var(--line)}.dock{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:8px 12px calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--page)}.dock .primary{margin:0}.tools{display:flex;justify-content:flex-end;align-items:center;gap:8px}.draft{font-size:.72rem;font-weight:700;letter-spacing:.06em;color:var(--danger)}.beta{font-size:.9rem;line-height:1.4;margin:0 0 12px;padding:10px 12px;border-radius:10px;background:var(--soft);border:1px solid var(--line)}.review-note{font-size:.82rem;line-height:1.4;margin:8px 0 10px;padding:8px 10px;border-radius:8px;background:var(--soft);border-left:3px solid var(--spruce)}.sources{padding-left:1.2rem}.sources li{margin:.35rem 0}.stem,.sentence,.lead,.option,.lab,.why{color:var(--ink)}.sentence{margin:0 0 .35rem;font-size:1em;line-height:1.35}.sentence.mark{background:var(--mark)}.lead{font-weight:650;margin:8px 0 4px}.lab{display:flex;justify-content:space-between;gap:12px;padding:1px 0;font-size:.95rem}.option{display:flex;gap:12px;align-items:center;padding:6px 0}.letter{width:48px;height:48px;flex:0 0 48px;border:1.5px solid var(--ink)!important;border-radius:50%;padding:0;font-size:1.2rem;font-weight:700}.otext{text-align:left;padding:10px 0;flex:1}.quiz-frame{height:100dvh;display:flex;flex-direction:column}.quiz-body{flex:1;min-height:0;display:flex;position:relative}.qindex{width:220px;flex:0 0 220px;overflow:auto;border-right:1px solid var(--line);background:var(--page)}.qindex button{display:block;width:100%;text-align:left;border:0;border-radius:0;border-bottom:1px solid var(--line);padding:10px 12px}.qindex .on{background:var(--soft);font-weight:700}@media(max-width:839px){.qindex{position:absolute;z-index:4;top:0;bottom:0;left:0;width:min(280px,86vw);flex-basis:auto;box-shadow:8px 0 24px #0000001f}}.struck .otext{text-decoration:line-through;color:var(--muted)}.why{margin-top:10px}.tag{font-size:.8rem;color:var(--danger)}.key,.why .key{color:var(--key)}.cite{color:var(--muted);font-size:.9rem}.plain{list-style:none;padding:0}.plain li{padding:6px 0;border-bottom:1px solid var(--line)}.plain button{border:0;background:transparent;padding:0;text-align:left}.pad{padding:12px}.toast{position:fixed;left:12px;right:12px;bottom:16px;z-index:5;background:var(--ink);color:var(--page);padding:10px 12px;border-radius:10px}dialog{border:1px solid var(--line);border-radius:12px;background:var(--page);color:var(--ink);max-width:520px;width:calc(100% - 24px)}dialog .lab{font-size:.9rem}@media(max-width:839px){.split{display:block}}.home{padding-top:18px}.home-hero h1{font-size:2.15rem;letter-spacing:-.03em;margin:0 0 .35rem}.home-hero .lede{font-size:1.05rem;line-height:1.4;max-width:38rem;color:var(--ink)}.home-hero .muted{max-width:40rem}.how-launch{display:flex;align-items:center;width:100%;min-height:48px;margin-top:14px;padding:12px 16px;border:0;border-radius:14px;background:var(--how-bg);color:var(--how-ink);font-weight:700;text-align:left}.how-panel{margin-top:12px}.how-panel[hidden]{display:none!important}.how-panel-bar{display:flex;align-items:center;justify-content:space-between;gap:12px}.how-panel-bar h2{margin:0}.how-panel-bar button{min-height:48px;min-width:48px;padding:12px 16px;border-radius:12px}.how-panel h3{font-size:1.05rem;margin:.8rem 0 .3rem}.how-panel button.evidence{min-height:48px;padding:12px 0;text-align:left}.how-panel .primary{min-height:48px}.home-groups{margin-top:18px}.home-group h2{margin:0;font-size:1.15rem;letter-spacing:.01em}.home-group>.muted{margin:.2rem 0 .4rem}.home-card{display:flex;flex-direction:column;align-items:flex-start;gap:2px;width:100%;min-height:48px;margin-top:8px;padding:12px 14px;border:1.5px solid var(--card-edge);border-radius:14px;background:var(--card);text-align:left;line-height:1.35}.home-card-title{font-size:1.05rem;font-weight:750}.home-count{color:var(--spruce);font-weight:700;font-size:.92rem}.home-card-desc,.home-card-meta{color:var(--muted);font-size:.92rem;font-weight:450}.home-empty{margin:8px 0}.home-lock{display:flex;align-items:center;min-height:48px;padding:12px 0}.home-privacy{margin:8px 0 0}.home-privacy a{display:inline-flex;align-items:center;min-height:48px}.home .version{display:flex;align-items:center;min-height:48px}.help-card .choices button{min-height:48px}@media(min-width:960px){.home-hero h1{font-size:2.75rem}.home-groups{display:grid;grid-template-columns:1fr 1fr;gap:8px 22px;align-items:start}}.suggest-open{display:inline-flex;align-items:center;min-height:48px;margin-top:8px;padding:10px 14px;border-radius:12px;background:var(--card);border:1px solid var(--card-edge);font-weight:650}.suggest-panel textarea,.suggest-panel input[type=text]{width:100%;box-sizing:border-box;font:inherit;font-size:16px;padding:10px;border:1px solid var(--line);border-radius:10px;background:var(--page);color:var(--ink)}.suggest-panel textarea{min-height:8rem;resize:vertical}.suggest-types{border:0;margin:8px 0;padding:0;display:flex;flex-direction:column;gap:4px}.suggest-types label{display:flex;align-items:center;gap:10px;min-height:48px;margin:0}.suggest-panel .primary{min-height:48px}.suggest-panel #suggest-mail{display:inline-flex;align-items:center;min-height:48px}.suggest-warn{font-size:.92rem}.suggest-close{display:flex;align-items:center;min-height:48px;padding:12px 0}.site-strip{margin:0 0 12px}.site-strip p{margin:0 0 6px}.sample-flag{font-weight:700;background:var(--mark);color:#1a1a1a;border-radius:10px;padding:8px 10px}:root[data-theme=dark] .sample-flag{color:#fff8e0}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .sample-flag{color:#fff8e0}}.disclaimer,.code-as-of,.law-disclaimer{font-size:.95rem}.law-disclaimer{font-weight:650}.effective{border-left:3px solid var(--spruce);background:var(--soft);padding:8px 10px;margin:8px 0}.practice-form label{font-weight:650}.practice-form select,.practice-form input[type=number]{width:100%;min-height:48px;font-size:16px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--page);color:var(--ink)}.home .primary,.home .tonal,.home .chip,.how-launch{min-height:48px}.bank-tabs{display:flex;gap:8px;margin:8px 0 12px}.bank-tabs button{flex:1;min-height:48px}.bank-tabs button[aria-selected=true]{background:var(--ink);color:var(--page);border-color:var(--ink)}.soon{border-left:3px solid var(--spruce);background:var(--soft);padding:8px 10px;margin:8px 0}.pilot{font-weight:700;font-size:.85rem}.citation{margin-top:8px}.quiz-frame .site-strip{padding:8px 12px 0}.site-strip .disclaimer{margin-bottom:0}.dock button{min-height:48px}.home-privacy{margin-top:8px}.home-privacy a{color:var(--spruce)}input[type=date]{min-height:48px;font-size:16px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:var(--page);color:var(--ink)}.flag{margin:8px 0}.area-scores{margin:8px 0 0;padding-left:1.1rem}.area-scores li{margin:2px 0}@media(max-width:839px){.top button{min-height:48px}}