/* FAST Prep */
.fastpage{background:var(--bg)}
.fx-head .wrap{max-width:1240px}
.fx-brand span{display:inline!important}
.fx-who{font-size:.9rem;color:var(--ink2);display:flex;gap:10px;align-items:center}
.fx-link{border:0;background:none;color:var(--accent-text);font:inherit;font-size:.85rem;text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:0}
#fast{outline:none;min-height:70vh}
#fast .wrap{max-width:1240px}
.fx-h1{font-family:var(--display);font-weight:400;font-size:clamp(2.8rem,6vw,4.6rem);line-height:.95;color:var(--plum);margin:6px 0 0}
.fx-h1 em{color:var(--accent);font-style:italic}
.fx-h2{font-family:var(--display);font-weight:400;font-size:clamp(2rem,4vw,2.8rem);line-height:1;color:var(--plum);margin:4px 0 0}
.fx-h3{font-family:var(--display);font-weight:400;font-size:1.9rem;line-height:1.05;color:var(--plum);margin:0 0 14px}
.fx-hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:clamp(24px,5vw,64px);align-items:end;padding-block:clamp(40px,7vw,80px) clamp(24px,4vw,40px)}
.fx-hero .lede{margin:18px 0 26px;max-width:56ch}
.fx-cheer{font-family:var(--display);font-size:1.8rem;color:var(--accent-text)}
.fx-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.fx-stat{position:relative;background:var(--paper2);border-radius:18px;padding:18px 16px;display:grid;gap:4px;align-content:end;min-height:132px}
.fx-stat b{font-family:var(--display);font-weight:400;font-size:2.6rem;line-height:1;color:var(--plum)}
.fx-stat b small{font-size:1.1rem;color:var(--ink2)}
.fx-stat span{font-size:.82rem;color:var(--ink2);line-height:1.3}
.fx-ring{position:absolute;right:12px;top:12px;width:46px;height:46px;transform:rotate(-90deg)}
.fx-ring circle{fill:none;stroke:var(--chip);stroke-width:12}
.fx-ring circle.on{stroke:var(--accent)}
.fx-unit{padding-block:clamp(22px,3vw,34px)}
.fx-unithead{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;padding-top:18px;border-top:1px solid var(--rule)}
.fx-unithead .kicker{color:var(--uc)}
.fx-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:14px}
.fx-std{position:relative;display:flex;flex-direction:column;gap:8px;padding:18px 18px 16px;border-radius:18px;background:var(--paper2);text-decoration:none;color:var(--ink);box-shadow:inset 0 0 0 1px var(--rule);transition:transform .2s,box-shadow .2s;overflow:hidden}
.fx-std::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--uc)}
.fx-std:hover{transform:translateY(-2px);box-shadow:inset 0 0 0 1px var(--uc),0 14px 30px -20px rgba(42,26,51,.5)}
.fx-std:focus-visible{outline:3px solid var(--accent-text);outline-offset:2px}
.fx-code{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;color:var(--ink2)}
.fx-std b{font-family:var(--display);font-weight:400;font-size:1.55rem;line-height:1.05;color:var(--plum)}
.fx-ican{font-size:.88rem;line-height:1.4;color:var(--ink2)}
.fx-pips{display:flex;gap:6px;margin-top:auto;padding-top:6px}
.fx-pips i{width:28px;height:6px;border-radius:3px;background:var(--rule)}
.fx-pips i.on{background:var(--uc)}
.fx-scores{display:flex;flex-wrap:wrap;gap:6px;align-items:center;min-height:26px}
.fx-pct{font-family:var(--mono);font-size:.72rem;padding:4px 9px;border-radius:999px;background:var(--chip);color:var(--plum)}
.fx-pct.good{background:#DDF0E1;color:#1F5A2E}.fx-pct.mid{background:#FCEFCF;color:#6B4A07}.fx-pct.low{background:#FBE0DA;color:#8A2A16}
:root[data-mode="dark"] .fx-pct.good{background:#1E3A27;color:#B7E8C4}:root[data-mode="dark"] .fx-pct.mid{background:#3D3015;color:#F4D892}:root[data-mode="dark"] .fx-pct.low{background:#3F1F1A;color:#F6B8AA}
.fx-next{font-size:.85rem;font-weight:600;color:var(--accent-text)}
.st-done .fx-next{display:none}
/* standard page */
.fx-std-hero{padding-block:clamp(30px,5vw,56px) 20px}
.fx-std-hero .kicker{color:var(--uc)}
.fx-std-hero .lede{margin-top:16px;max-width:60ch}
.fx-back{display:inline-block;font-size:.9rem;color:var(--accent-text);margin-bottom:18px;text-decoration:none}
.fx-back:hover{text-decoration:underline}
.fx-official{margin-top:18px;max-width:70ch}
.fx-official summary{cursor:pointer;font-weight:600;color:var(--plum);font-size:.92rem}
.fx-official p{color:var(--ink2);margin-top:8px}
.fx-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-block:20px 30px}
.fx-step{display:flex;gap:16px;align-items:flex-start;padding:22px;border-radius:20px;background:var(--paper2);color:var(--ink);text-decoration:none;box-shadow:inset 0 0 0 1px var(--rule);transition:transform .2s}
.fx-step:hover{transform:translateY(-2px)}
.fx-step.is-locked{opacity:.5;cursor:not-allowed}
.fx-step.is-locked:hover{transform:none}
.fx-stepn{flex:none;width:52px;height:52px;border-radius:50%;background:var(--plum);color:var(--bg);display:grid;place-items:center;font-family:var(--display);font-size:1.7rem}
.fx-step.is-done .fx-stepn{background:var(--uc,var(--accent));color:#fff}
.fx-stepb{display:grid;gap:6px}
.fx-stepb b{font-family:var(--display);font-weight:400;font-size:1.6rem;color:var(--plum);line-height:1}
.fx-stepb span{font-size:.9rem;color:var(--ink2);line-height:1.4}
.fx-stepdone{font-weight:600;color:var(--plum)!important}
.fx-growth{padding-block:10px 30px}
.fx-bars{display:grid;gap:10px;max-width:640px;margin-top:10px}
.fx-bars div{display:grid;grid-template-columns:96px 1fr 54px;gap:12px;align-items:center;font-size:.9rem}
.fx-bars i{display:block;height:18px;border-radius:9px;background:var(--chip);position:relative;overflow:hidden}
.fx-bars i::after{content:"";position:absolute;inset:0;width:var(--w);background:var(--ink2);border-radius:9px;animation:fxGrow 1s cubic-bezier(.2,.8,.1,1) both}
.fx-bars i.post::after{background:var(--uc,var(--accent))}
.fx-bars b{font-family:var(--mono);font-weight:500}
@keyframes fxGrow{from{width:0}}
/* sign in */
.fx-signin{align-items:center}
.fx-card{background:var(--paper2);border-radius:22px;padding:24px;box-shadow:inset 0 0 0 1px var(--rule)}
.fx-form{display:grid;gap:14px}
.fx-form label{display:grid;gap:6px;font-weight:600;font-size:.92rem;color:var(--plum)}
.fx-form small{font-weight:400;color:var(--ink2)}
.fx-form input{font:inherit;font-size:1.05rem;padding:12px 14px;border-radius:12px;border:1px solid var(--rule);background:var(--bg);color:var(--ink)}
.fx-form input:focus{outline:2px solid var(--accent-text);outline-offset:1px}
.fx-err{color:#B42318;font-size:.9rem;min-height:1em;margin:0}
:root[data-mode="dark"] .fx-err{color:#FF9C84}
/* test */
.fx-test{padding-bottom:40px}
.fx-testbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;padding-block:18px 14px;border-bottom:1px solid var(--rule)}
.fx-testbar .fx-back{margin:0}
.fx-testbar .kicker{color:var(--uc)}
.fx-qnav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.fx-qnav button{min-width:40px;height:40px;border-radius:10px;border:0;background:var(--chip);color:var(--plum);font:inherit;font-weight:600;cursor:pointer}
.fx-qnav button.done{background:color-mix(in srgb,var(--uc) 22%,var(--chip))}
.fx-qnav button.cur{background:var(--plum);color:var(--bg)}
.fx-qnav .fx-revbtn{padding:0 14px}
.fx-split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:28px;padding-top:22px;align-items:start}
.fx-split.no-pass{grid-template-columns:minmax(0,760px);justify-content:center}
.fx-left{position:sticky;top:84px;max-height:calc(100vh - 110px);overflow:auto;background:var(--paper2);border-radius:20px;padding:22px 26px;box-shadow:inset 0 0 0 1px var(--rule)}
.fx-ptabs{display:flex;gap:6px;margin-bottom:12px;flex-wrap:wrap}
.fx-ptabs button{border:0;background:var(--chip);color:var(--plum);font:inherit;font-size:.85rem;font-weight:600;padding:8px 12px;border-radius:999px;cursor:pointer}
.fx-ptabs button[aria-selected="true"]{background:var(--plum);color:var(--bg)}
.fx-passage h3{font-family:var(--display);font-weight:400;font-size:1.8rem;line-height:1.05;color:var(--plum);margin:4px 0 14px}
.fx-par{position:relative;padding-left:34px;margin:0 0 14px;font-family:'Noto Serif',Georgia,serif;font-size:1.02rem;line-height:1.7;color:var(--ink)}
.fx-pn{position:absolute;left:0;top:.2em;font-family:var(--mono);font-size:.7rem;color:var(--ink2)}
.fx-passage.poem .fx-par{padding-left:0;line-height:1.85}
.fx-byline{font-size:.78rem;color:var(--ink2);font-style:italic;margin-top:14px}
.fx-item{border:0;margin:0;padding:0}
.fx-item legend{display:flex;gap:10px;align-items:center;margin-bottom:10px;padding:0}
.fx-qn{font-family:var(--mono);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink2)}
.fx-tag{font-size:.75rem;font-weight:600;background:var(--band);color:var(--accent-text);padding:3px 9px;border-radius:999px}
.fx-stem{font-size:1.12rem;line-height:1.5;color:var(--ink);margin:0 0 14px;font-weight:500}
.fx-partb{margin-top:24px;padding-top:18px;border-top:1px dashed var(--rule)}
.fx-chs{display:grid;gap:10px}
.fx-ch{display:flex;gap:12px;align-items:flex-start;padding:13px 14px;border-radius:14px;background:var(--paper2);box-shadow:inset 0 0 0 1.5px var(--rule);cursor:pointer;line-height:1.45;transition:box-shadow .15s,background .15s}
.fx-ch:hover{box-shadow:inset 0 0 0 1.5px var(--ink2)}
.fx-ch input{position:absolute;opacity:0;pointer-events:none}
.fx-let{flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--chip);color:var(--plum);font-weight:600;font-size:.85rem}
.fx-ch:has(input:checked){background:color-mix(in srgb,var(--uc,var(--accent)) 12%,var(--paper2));box-shadow:inset 0 0 0 2px var(--uc,var(--accent))}
.fx-ch:has(input:checked) .fx-let{background:var(--uc,var(--accent));color:#fff}
.fx-ch:has(input:focus-visible){outline:3px solid var(--accent-text);outline-offset:2px}
.fx-ct{padding-top:3px}
.fx-qbtns{display:flex;justify-content:space-between;gap:10px;margin-top:22px}
.fx-fb .fx-warn,.fx-warn{color:#8A2A16;font-weight:600;font-size:.92rem;margin:10px 0 0}
:root[data-mode="dark"] .fx-warn{color:#F6B8AA}
.fx-review{display:grid;gap:14px}
.fx-revlist{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.fx-revlist li{display:grid;grid-template-columns:40px 1fr auto;gap:12px;align-items:center;padding:10px 12px;border-radius:12px;background:var(--paper2)}
.fx-revlist button{width:36px;height:36px;border-radius:10px;border:0;background:var(--chip);font:inherit;font-weight:600;color:var(--plum);cursor:pointer}
.fx-revlist span{font-size:.9rem;color:var(--ink2)}
.fx-revlist b{font-size:.78rem}.fx-revlist b.ok{color:#1F5A2E}.fx-revlist b.no{color:#8A2A16}
:root[data-mode="dark"] .fx-revlist b.ok{color:#B7E8C4}:root[data-mode="dark"] .fx-revlist b.no{color:#F6B8AA}
/* results */
.fx-results{padding-block:clamp(30px,5vw,56px) 40px}
.fx-results .kicker{color:var(--uc)}
.fx-score{display:flex;gap:30px;align-items:center;margin:10px 0 26px;flex-wrap:wrap}
.fx-big{font-family:var(--display);font-size:7rem;line-height:1;color:var(--plum)}
.fx-big small{font-size:2.4rem}
.fx-big.good{color:#2E7D46}.fx-big.mid{color:#A06A00}.fx-big.low{color:var(--accent-text)}
:root[data-mode="dark"] .fx-big.good{color:#8FDCA7}:root[data-mode="dark"] .fx-big.mid{color:#F4C95D}
.fx-resbtns{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.fx-review-items{display:grid;gap:10px}
.fx-res{border-radius:16px;background:var(--paper2);box-shadow:inset 4px 0 0 #8A2A16;padding:4px 18px 4px 22px}
.fx-res.ok{box-shadow:inset 4px 0 0 #2E7D46}.fx-res.part{box-shadow:inset 4px 0 0 #C98210}
.fx-res summary{display:grid;grid-template-columns:30px 1fr auto;gap:12px;align-items:center;padding:12px 0;cursor:pointer;list-style:none}
.fx-res summary::-webkit-details-marker{display:none}
.fx-resn{font-family:var(--mono);font-size:.8rem;color:var(--ink2)}
.fx-resstem{font-size:.95rem;line-height:1.4}
.fx-res summary b{font-family:var(--mono);font-size:.85rem}
.fx-keylist{list-style:none;margin:6px 0 10px;padding:0;display:grid;gap:6px}
.fx-keylist li{display:flex;gap:10px;align-items:flex-start;padding:8px 10px;border-radius:10px;font-size:.93rem;line-height:1.45}
.fx-keylist li.key{background:color-mix(in srgb,#2E7D46 14%,transparent)}
.fx-keylist li.wrong{background:color-mix(in srgb,#B42318 12%,transparent)}
.fx-badge{display:inline-block;font-size:.7rem;font-weight:600;padding:2px 7px;border-radius:999px;background:var(--chip);color:var(--plum);margin-left:4px}
.fx-badge.ok{background:#2E7D46;color:#fff}
.fx-why{display:block;font-style:normal;color:var(--ink2);margin-top:4px;font-size:.88rem}
.fx-explain{font-size:.95rem;line-height:1.5;margin:0 0 14px}
/* lesson */
.fx-lesson{padding-block:clamp(30px,5vw,56px) 40px}
.fx-lesson .kicker{color:var(--uc)}
.fx-lesson .lede{margin:14px 0 24px;max-width:60ch}
.fx-video{max-width:1100px;margin-bottom:34px}
.fx-notes{display:grid;gap:30px;max-width:860px}
.fx-big p:last-child{font-family:var(--display);font-size:1.7rem;line-height:1.2;color:var(--plum);margin:8px 0 0}
.fx-terms{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.fx-term{display:grid;gap:4px;padding:14px 16px;border-radius:14px;background:var(--paper2);box-shadow:inset 3px 0 0 var(--uc)}
.fx-term b{font-family:var(--display);font-weight:400;font-size:1.35rem;color:var(--plum)}
.fx-term span{font-size:.9rem;color:var(--ink2);line-height:1.45}
.fx-howto{margin:0;padding:0;list-style:none;counter-reset:h;display:grid;gap:10px}
.fx-howto li{counter-increment:h;display:grid;grid-template-columns:40px 1fr;gap:12px;align-items:start;line-height:1.5}
.fx-howto li::before{content:counter(h);width:36px;height:36px;border-radius:50%;background:var(--uc);color:#fff;display:grid;place-items:center;font-family:var(--display);font-size:1.3rem}
.fx-example{background:var(--paper2);border-radius:22px;padding:24px;box-shadow:inset 0 0 0 1px var(--rule)}
.fx-expass{margin:0 0 14px;background:var(--bg);border-radius:14px;padding:12px 16px}
.fx-expass summary{cursor:pointer;font-weight:600;color:var(--plum);font-size:.92rem}
.fx-expass .fx-passage{margin-top:12px}
.fx-think{margin:0 0 12px;padding-left:22px;display:grid;gap:8px;line-height:1.5}
.fx-think li{animation:fxIn .4s ease both}
@keyframes fxIn{from{opacity:0;transform:translateY(6px)}}
.fx-answer{background:color-mix(in srgb,var(--uc) 14%,transparent);padding:12px 14px;border-radius:12px;line-height:1.5}
.fx-traps ul{margin:0;padding-left:20px;display:grid;gap:8px;line-height:1.5}
.fx-tip{box-shadow:inset 0 0 0 2px var(--uc)}
.fx-pq{padding:20px 0;border-top:1px solid var(--rule);display:grid;gap:12px}
.fx-pq > .btn{justify-self:start}
.btn.sm{padding:8px 16px;font-size:.88rem}
.fx-pfb{margin-top:12px;padding:14px 16px;border-radius:14px;line-height:1.5;font-size:.95rem}
.fx-pfb.ok{background:color-mix(in srgb,#2E7D46 14%,transparent)}
.fx-pfb.no{background:color-mix(in srgb,#B42318 10%,transparent)}
.fx-pfb ul{margin:8px 0 0;padding-left:18px}
.fx-finish{text-align:left}
.fx-foot{border-top:1px solid var(--rule);padding:22px 0 30px;margin-top:40px;font-size:.82rem;color:var(--ink2)}
.fx-foot .wrap{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;max-width:1240px}
@media (max-width:900px){
  .fx-hero{grid-template-columns:1fr}
  .fx-steps{grid-template-columns:1fr}
  .fx-split{grid-template-columns:1fr}
  .fx-left{position:static;max-height:none}
  .fx-qnav{margin-left:0;width:100%}
}
@media (max-width:560px){.fx-stats{grid-template-columns:1fr 1fr}.fx-stat:first-child{grid-column:1/-1}.fx-big{font-size:5rem}}

/* informational-text features: headings, charts, captions, sidebars */
.fx-ph{font:600 1.08rem/1.3 "Host Grotesk",sans-serif;margin:1.2em 0 .4em;color:var(--uc,#333)}
.fx-feat{display:block;margin:.9em 0;padding:12px 14px;border-left:4px solid var(--uc,#888);background:color-mix(in srgb,var(--uc,#888) 8%,transparent);border-radius:0 10px 10px 0;font-size:.95em}
.fx-feat .fx-flab{display:block;font:500 .7rem/1 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.08em;opacity:.75;margin-bottom:6px}
.fx-chart{font-family:"IBM Plex Mono",monospace;font-size:.86em;white-space:pre-wrap}

@media (max-width:560px){.fx-who{font-size:0}.fx-who .fx-link{font-size:13px}.fx-brand span{display:none}}