:root{
  --paper:#eae2cf;
  --card:#f8f4e8;
  --card-hover:#fffdf6;
  --ink:#262319;
  --ink-soft:#5d564a;
  --ink-faint:#8a8271;
  --rule:#d9cfb3;
  --amber:#a9701a;
  --amber-deep:#7d5313;
  --teal:#1f5c56;
  --teal-deep:#153f3b;
  --plum:#6b4472;
  --rust:#a2451e;
  --slate:#3c5a73;
  --paper-shadow: 0 1px 0 rgba(38,35,25,.05), 0 8px 24px -12px rgba(38,35,25,.18);
  --radius: 3px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(ellipse at top left, rgba(169,112,26,0.06), transparent 55%),
    var(--paper);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--amber);color:var(--card);}
a{color:var(--teal-deep);}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px;}
.mono{font-family:'IBM Plex Mono',monospace;}
.serif{font-family:'Fraunces',serif;}

/* ---------- NAV ---------- */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(234,226,207,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--rule);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;max-width:1180px;margin:0 auto;gap:18px;
}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--ink);flex-shrink:0;}
.brand .mark{
  font-family:'Fraunces',serif;font-weight:700;font-size:1.3rem;letter-spacing:-.01em;
}
.brand .byline{font-size:.68rem;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.1em;white-space:nowrap;}
nav.links{display:flex;gap:16px;flex-wrap:wrap;justify-content:flex-end;}
nav.links a{
  color:var(--ink-soft);text-decoration:none;font-size:.86rem;font-weight:500;
  border-bottom:1px solid transparent;padding-bottom:2px;transition:border-color .15s,color .15s;
}
nav.links a:hover{color:var(--ink);border-color:var(--amber);}
nav.links a.active{color:var(--ink);border-color:var(--rust);font-weight:600;}
@media (max-width:720px){ nav.links{display:none;} }

/* ---------- HERO ---------- */
.hero{padding:64px 0 40px;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr;} }
.eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--amber-deep);margin-bottom:14px;display:inline-block;
}
h1.title{
  font-family:'Fraunces',serif;font-weight:600;font-size:clamp(2.2rem,4.4vw,3.4rem);
  line-height:1.04;letter-spacing:-.01em;margin:0 0 18px;
}
h1.title em{font-style:italic;font-weight:500;color:var(--teal-deep);}
.hero p.lede{font-size:1.08rem;color:var(--ink-soft);max-width:46ch;margin:0 0 26px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Inter',sans-serif;font-weight:600;font-size:.92rem;
  padding:11px 20px;border-radius:var(--radius);text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:transform .12s ease, box-shadow .12s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--ink);color:var(--card);}
.btn-primary:hover{background:var(--amber-deep);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink-faint);}
.btn-ghost:hover{border-color:var(--ink);}

/* thinking console — the signature element */
.console{
  background:var(--ink);color:#efe8d4;border-radius:6px;padding:22px 22px 18px;
  box-shadow:var(--paper-shadow);position:relative;overflow:hidden;
}
.console:before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg, rgba(169,112,26,.10), transparent 60%);
  pointer-events:none;
}
.console-bar{display:flex;gap:6px;margin-bottom:16px;}
.console-bar span{width:9px;height:9px;border-radius:50%;background:#4a4636;}
.console-line{font-family:'IBM Plex Mono',monospace;font-size:.86rem;color:#c9c0a4;margin-bottom:8px;}
.console-user{color:#efe8d4;}
.console-status{
  display:flex;align-items:center;gap:10px;margin-top:14px;
  font-family:'IBM Plex Mono',monospace;font-size:.94rem;color:#e7c98a;min-height:1.4em;
}
.dots{display:flex;gap:4px;}
.dots span{width:5px;height:5px;border-radius:50%;background:#e7c98a;animation:pulse 1.1s infinite ease-in-out;}
.dots span:nth-child(2){animation-delay:.15s;}
.dots span:nth-child(3){animation-delay:.3s;}
@keyframes pulse{0%,80%,100%{opacity:.25;transform:scale(.8);}40%{opacity:1;transform:scale(1);}}
.console-word{transition:opacity .18s ease;}
.console-note{font-size:.72rem;color:#8a8271;margin-top:16px;font-family:'IBM Plex Mono',monospace;}

@media (prefers-reduced-motion: reduce){
  .dots span{animation:none;opacity:1;}
}

/* ---------- DISCLAIMER ---------- */
.disclaimer{
  border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);
  background:#f2ecd9;
}
.disclaimer .wrap{padding:22px 24px;display:flex;gap:16px;align-items:flex-start;}
.disclaimer .glyph{
  font-family:'Fraunces',serif;font-style:italic;font-size:1.4rem;color:var(--amber-deep);line-height:1;
}
.disclaimer p{margin:0;font-size:.92rem;color:var(--ink-soft);max-width:74ch;}
.disclaimer strong{color:var(--ink);}

/* ---------- SECTION SCAFFOLD ---------- */
section{padding:64px 0;}
.section-head{max-width:640px;margin-bottom:36px;}
.section-head .eyebrow{margin-bottom:10px;}
h2.section-title{font-family:'Fraunces',serif;font-weight:600;font-size:clamp(1.7rem,3vw,2.3rem);margin:0 0 10px;letter-spacing:-.01em;}
.section-head p{color:var(--ink-soft);margin:0;}

/* ---------- ABOUT ---------- */
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:760px){.about-grid{grid-template-columns:1fr;}}
.about-card{background:var(--card);border:1px solid var(--rule);border-radius:var(--radius);padding:22px;box-shadow:var(--paper-shadow);}
.about-card .num{font-family:'IBM Plex Mono',monospace;color:var(--amber-deep);font-size:.78rem;letter-spacing:.08em;}
.about-card h3{font-family:'Fraunces',serif;font-size:1.15rem;margin:8px 0 8px;font-weight:600;}
.about-card p{margin:0;color:var(--ink-soft);font-size:.92rem;}

/* ---------- LEXICON ---------- */
.lex-toolbar{
  display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-bottom:22px;
  position:sticky;top:66px;z-index:30;background:rgba(234,226,207,.94);backdrop-filter:blur(4px);
  padding:12px 0;
}
.search-box{position:relative;flex:1;min-width:220px;}
.search-box input{
  width:100%;padding:11px 14px 11px 36px;border:1px solid var(--ink-faint);border-radius:var(--radius);
  background:var(--card);font-family:'Inter',sans-serif;font-size:.94rem;color:var(--ink);
}
.search-box input:focus{outline:2px solid var(--amber);outline-offset:1px;}
.search-box svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);opacity:.5;}
.chips{display:flex;gap:8px;flex-wrap:wrap;}
.chip{
  font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.02em;
  padding:7px 12px;border-radius:20px;border:1px solid var(--ink-faint);background:transparent;color:var(--ink-soft);
  cursor:pointer;transition:all .12s ease;white-space:nowrap;
}
.chip.active{background:var(--ink);color:var(--card);border-color:var(--ink);}
.chip:focus-visible{outline:2px solid var(--amber);}
.result-count{font-family:'IBM Plex Mono',monospace;font-size:.76rem;color:var(--ink-faint);margin-bottom:18px;}

.lex-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;}
.word-card{
  background:var(--card);border:1px solid var(--rule);border-radius:var(--radius);padding:18px 16px;
  cursor:pointer;text-align:left;transition:transform .12s ease, box-shadow .12s ease, background .12s ease;
  display:flex;flex-direction:column;gap:8px;
}
.word-card:hover{background:var(--card-hover);transform:translateY(-2px);box-shadow:var(--paper-shadow);}
.word-card:focus-visible{background:var(--card-hover);box-shadow:var(--paper-shadow);outline:2px solid var(--amber);outline-offset:2px;}
.word-card .top-row{display:flex;justify-content:space-between;align-items:flex-start;}
.word-card .id{font-family:'IBM Plex Mono',monospace;font-size:.7rem;color:var(--ink-faint);}
.word-card .emoji{font-size:1.3rem;}
.word-card h4{font-family:'Fraunces',serif;font-weight:600;font-size:1.15rem;margin:0;color:var(--ink);}
.word-card .meaning{font-size:.85rem;color:var(--ink-soft);flex:1;}
.tag{
  align-self:flex-start;font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.04em;
  padding:3px 9px;border-radius:20px;color:#fff;
}
.tag-deep{background:var(--teal);}
.tag-cook{background:var(--rust);}
.tag-move{background:var(--amber-deep);}
.tag-play{background:var(--plum);}
.tag-prog{background:var(--slate);}

.empty-state{padding:60px 20px;text-align:center;color:var(--ink-faint);font-family:'IBM Plex Mono',monospace;font-size:.9rem;}

/* ---------- MODAL / DETAIL ---------- */
.modal-overlay{
  position:fixed;inset:0;background:rgba(38,35,25,.55);backdrop-filter:blur(2px);
  display:flex;align-items:flex-start;justify-content:center;padding:5vh 16px;z-index:100;
  opacity:0;pointer-events:none;transition:opacity .15s ease;overflow-y:auto;
}
.modal-overlay.open{opacity:1;pointer-events:auto;}
.modal{
  background:var(--card);border-radius:6px;max-width:640px;width:100%;padding:32px 32px 28px;
  box-shadow:0 24px 60px -20px rgba(0,0,0,.4);position:relative;margin-bottom:5vh;
  transform:translateY(8px);transition:transform .15s ease;
}
.modal-overlay.open .modal{transform:translateY(0);}
.modal-close{
  position:absolute;top:18px;right:18px;background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--ink-faint);
  width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;
}
.modal-close:hover{background:var(--rule);color:var(--ink);}
.modal-head{display:flex;align-items:center;gap:12px;margin-bottom:6px;}
.modal-head .emoji{font-size:1.8rem;}
.modal h3{font-family:'Fraunces',serif;font-weight:700;font-size:1.7rem;margin:0;}
.modal .id-row{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--ink-faint);margin-bottom:16px;display:flex;gap:10px;align-items:center;}
.modal .meaning-lead{font-size:1.02rem;color:var(--ink);margin:0 0 20px;}
.field{margin-bottom:16px;}
.field .flabel{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--amber-deep);margin-bottom:4px;}
.field p{margin:0;font-size:.92rem;color:var(--ink-soft);}
.field .example{font-style:italic;color:var(--ink);}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 20px;}
@media (max-width:520px){.field-grid{grid-template-columns:1fr;}}
.divider{border:none;border-top:1px solid var(--rule);margin:20px 0;}
.note-banner{
  background:#f2ecd9;border:1px solid var(--rule);border-radius:var(--radius);padding:10px 14px;
  font-size:.78rem;color:var(--ink-soft);margin-top:4px;
}

.pl-tier-label{
  font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-faint);margin-bottom:8px;
}
.pl-ex-chip{display:inline-flex;align-items:center;gap:7px;}
.pl-diff-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0;display:inline-block;}
.pl-diff-basic{background:var(--teal);}
.pl-diff-mid{background:var(--amber-deep);}
.pl-diff-adv{background:var(--rust);}
.pl-panel-label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;}
.pl-panel-label-row .pl-panel-label{margin-bottom:0;}
.pl-diff-tag{
  font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.05em;text-transform:uppercase;
  padding:3px 10px;border-radius:20px;color:#fff;
}

/* ---------- PROMPT LAB ---------- */
.promptlab-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start;}
@media (max-width:800px){.promptlab-grid{grid-template-columns:1fr;}}
.pl-panel{
  background:var(--card);border:1px solid var(--rule);border-radius:6px;padding:22px;
  box-shadow:var(--paper-shadow);
}
.pl-panel-label{
  font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--amber-deep);margin-bottom:10px;
}
.pl-output{
  font-family:'Fraunces',serif;font-size:1.05rem;line-height:1.55;color:var(--ink);
  background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:16px 18px;
  white-space:pre-wrap;
}
.pl-output.code{font-family:'IBM Plex Mono',monospace;font-size:.86rem;}
.pl-reveal{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--rule);
}
.pl-reveal .flabel{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--teal-deep);margin-bottom:6px;}
.pl-reveal p{margin:0;font-size:.88rem;color:var(--ink-soft);font-style:italic;}
#pl-input{
  width:100%;min-height:120px;padding:12px 14px;border:1px solid var(--ink-faint);border-radius:var(--radius);
  font-family:'Inter',sans-serif;font-size:.94rem;resize:vertical;background:#fff;color:var(--ink);
}
#pl-input:focus{outline:2px solid var(--amber);outline-offset:1px;}
.pl-scorecard{margin-top:18px;padding-top:16px;border-top:1px solid var(--rule);}
.pl-score-total{font-family:'Fraunces',serif;font-size:1.4rem;font-weight:700;color:var(--teal-deep);margin-bottom:12px;}
.pl-criterion{display:flex;gap:10px;align-items:flex-start;padding:7px 0;font-size:.86rem;}
.pl-criterion .mark{flex-shrink:0;font-weight:700;width:18px;}
.pl-criterion.met .mark{color:var(--teal);}
.pl-criterion.unmet .mark{color:var(--rust);}
.pl-criterion .clabel{color:var(--ink);}
.pl-criterion .clever{color:var(--ink-faint);font-family:'IBM Plex Mono',monospace;font-size:.66rem;text-transform:uppercase;letter-spacing:.04em;margin-left:6px;}
.pl-disclaimer{font-size:.82rem;color:var(--ink-faint);max-width:760px;margin-top:20px;}

.pl-output.visual{padding:0;background:none;border:none;}
.pl-visual-stage{
  background:#fff;border:1px solid var(--rule);border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;padding:24px 0;min-height:220px;
}
.pl-float{animation:plBob 3s ease-in-out infinite alternate;}
.pl-twirl{width:130px;height:auto;animation:plSpin 4.5s linear infinite;transform-origin:50% 55%;}
@keyframes plBob{from{transform:translateY(-6px);}to{transform:translateY(6px);}}
@keyframes plSpin{from{transform:rotate(0deg);}to{transform:rotate(360deg);}}
@media (prefers-reduced-motion: reduce){
  .pl-float, .pl-twirl{animation:none;}
}

/* ---------- QUIZ ---------- */
.quiz-card{
  background:var(--card);border:1px solid var(--rule);border-radius:6px;
  padding:32px;box-shadow:var(--paper-shadow);max-width:640px;
}
.quiz-setup{display:flex;flex-direction:column;gap:20px;}
.quiz-choice-row{display:flex;gap:10px;flex-wrap:wrap;}
.quiz-progress{font-family:'IBM Plex Mono',monospace;font-size:.76rem;color:var(--ink-faint);margin-bottom:10px;}
.quiz-question{font-family:'Fraunces',serif;font-size:1.25rem;font-weight:600;margin:0 0 20px;line-height:1.35;}
.quiz-options{display:flex;flex-direction:column;gap:10px;}
.opt-btn{
  text-align:left;padding:13px 16px;border-radius:var(--radius);border:1px solid var(--ink-faint);
  background:transparent;font-family:'Inter',sans-serif;font-size:.94rem;color:var(--ink);cursor:pointer;
  transition:all .12s ease;
}
.opt-btn:hover:not(:disabled){border-color:var(--ink);background:#f2ecd9;}
.opt-btn.correct{background:#1f5c56;border-color:#1f5c56;color:#fff;}
.opt-btn.wrong{background:#a2451e;border-color:#a2451e;color:#fff;}
.opt-btn:disabled{cursor:default;}
.quiz-footer{display:flex;justify-content:space-between;align-items:center;margin-top:22px;}
.score-line{font-family:'IBM Plex Mono',monospace;font-size:.82rem;color:var(--ink-soft);}
.quiz-result{text-align:center;}
.quiz-result .big{font-family:'Fraunces',serif;font-size:3rem;font-weight:700;margin:6px 0;color:var(--teal-deep);}

/* ---------- EXPLAINERS ---------- */
.explain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
@media (max-width:720px){.explain-grid{grid-template-columns:1fr;}}
.explain-card{
  background:var(--card);border:1px solid var(--rule);border-radius:6px;padding:24px;
  box-shadow:var(--paper-shadow);display:flex;flex-direction:column;gap:10px;
}
.explain-card .exicon{
  width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:.82rem;color:#fff;
}
.explain-card h3{font-family:'Fraunces',serif;font-weight:600;font-size:1.2rem;margin:0;}
.explain-card p{margin:0;color:var(--ink-soft);font-size:.9rem;}
.explain-card .who{
  font-family:'IBM Plex Mono',monospace;font-size:.7rem;color:var(--ink-faint);
  border-top:1px solid var(--rule);padding-top:10px;margin-top:2px;
}
.explain-card a.src-link{
  font-size:.82rem;font-weight:600;text-decoration:none;color:var(--teal-deep);
  display:inline-flex;align-items:center;gap:4px;
}
.explain-card a.src-link:hover{text-decoration:underline;}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;display:flex;flex-direction:column;gap:10px;}
.faq-item{border:1px solid var(--rule);border-radius:var(--radius);background:var(--card);overflow:hidden;}
.faq-q{
  width:100%;text-align:left;padding:16px 20px;background:none;border:none;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-family:'Inter',sans-serif;font-weight:600;font-size:.96rem;color:var(--ink);
}
.faq-q:hover{background:#f2ecd9;}
.faq-q .chevron{transition:transform .15s ease;color:var(--amber-deep);flex-shrink:0;}
.faq-item.open .chevron{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-item.open .faq-a{max-height:400px;}
.faq-a-inner{padding:0 20px 18px;color:var(--ink-soft);font-size:.9rem;}
.faq-a-inner a{color:var(--teal-deep);font-weight:600;}

/* ---------- SOURCES ---------- */
.sources-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
@media (max-width:720px){.sources-grid{grid-template-columns:1fr;}}
.source-col h3{
  font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--amber-deep);margin:0 0 14px;
}
.source-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.source-col li{border-bottom:1px solid var(--rule);padding-bottom:12px;}
.source-col a{color:var(--ink);font-weight:600;text-decoration:none;font-size:.92rem;}
.source-col a:hover{color:var(--teal-deep);}
.source-col .desc{display:block;color:var(--ink-faint);font-size:.78rem;margin-top:3px;font-family:'IBM Plex Mono',monospace;}

/* ---------- MECHANISM / CORRECTION SECTION ---------- */
.mech-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:22px;}
@media (max-width:720px){.mech-grid{grid-template-columns:1fr;}}
.mech-card{
  background:var(--card);border:1px solid var(--rule);border-radius:6px;padding:22px;
  box-shadow:var(--paper-shadow);
}
.mech-label{
  font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--amber-deep);margin-bottom:10px;
}
.mech-card p{margin:0;color:var(--ink-soft);font-size:.92rem;}
.mech-card strong{color:var(--ink);}
.mech-formula{
  background:var(--ink);color:#efe8d4;border-radius:6px;padding:20px 24px;margin-bottom:20px;
}
.mech-formula-row{display:flex;gap:14px;align-items:baseline;flex-wrap:wrap;padding:8px 0;}
.mech-formula-row + .mech-formula-row{border-top:1px solid rgba(239,232,212,0.15);}
.mech-tag{
  font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;
  color:#a08a5c;flex-shrink:0;min-width:110px;
}
.mech-tag.strong{color:#e7c98a;}
.mech-chain{font-family:'IBM Plex Mono',monospace;font-size:.84rem;color:#efe8d4;line-height:1.6;}
.mech-footnote{font-size:.9rem;color:var(--ink-soft);max-width:760px;}
.mech-footnote em{font-style:italic;color:var(--ink);}
.mech-footnote a{color:var(--teal-deep);font-weight:600;}

/* ---------- PROGRESS DASHBOARD ---------- */
.progress-card{
  background:var(--card);border:1px solid var(--rule);border-radius:6px;padding:28px;
  box-shadow:var(--paper-shadow);
}
.profile-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:22px;}
.profile-row input{
  padding:9px 12px;border:1px solid var(--ink-faint);border-radius:var(--radius);
  background:#fff;font-family:'Inter',sans-serif;font-size:.88rem;min-width:200px;
}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px;}
@media (max-width:640px){.stat-row{grid-template-columns:repeat(2,1fr);}}
.stat-tile{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:14px 16px;}
.stat-tile .num{font-family:'Fraunces',serif;font-size:1.7rem;font-weight:700;color:var(--teal-deep);}
.stat-tile .lbl{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint);margin-top:2px;}
.shaky-list{display:flex;gap:8px;flex-wrap:wrap;}
.shaky-pill{
  font-family:'IBM Plex Mono',monospace;font-size:.76rem;background:#f2ecd9;border:1px solid var(--rule);
  padding:5px 11px;border-radius:20px;color:var(--ink-soft);
}
.progress-note{font-size:.78rem;color:var(--ink-faint);margin-top:18px;border-top:1px solid var(--rule);padding-top:14px;}
.reset-link{background:none;border:none;color:var(--rust);font-size:.78rem;cursor:pointer;text-decoration:underline;padding:0;}

/* ---------- SHAKY STAR ---------- */
.star-btn{
  background:none;border:none;cursor:pointer;font-size:1rem;color:var(--ink-faint);padding:2px;line-height:1;
}
.star-btn.on{color:var(--amber-deep);}
.word-card .top-row{display:flex;justify-content:space-between;align-items:center;}
.due-badge{
  font-family:'IBM Plex Mono',monospace;font-size:.62rem;background:var(--rust);color:#fff;
  padding:2px 7px;border-radius:20px;margin-left:6px;
}

/* ---------- QUIZ SETUP EXTRAS ---------- */
.setup-block{display:flex;flex-direction:column;gap:8px;}
.setup-block .lbl{font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint);}
.mode-row{display:flex;gap:10px;flex-wrap:wrap;}

/* ---------- SENTENCE CHECK ---------- */
.sentence-box textarea{
  width:100%;min-height:80px;padding:12px 14px;border:1px solid var(--ink-faint);border-radius:var(--radius);
  font-family:'Inter',sans-serif;font-size:.94rem;resize:vertical;background:#fff;color:var(--ink);
}
.sentence-box textarea:focus{outline:2px solid var(--amber);outline-offset:1px;}
.reveal-box{
  background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:14px 16px;margin-top:14px;
}
.reveal-box .flabel{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--amber-deep);margin-bottom:5px;}
.self-assess{display:flex;gap:10px;margin-top:14px;}

/* ---------- LAST REVIEWED ---------- */
.reviewed-badge{
  font-family:'IBM Plex Mono',monospace;font-size:.68rem;color:var(--ink-faint);
  border-top:1px dashed var(--rule);padding-top:8px;margin-top:2px;
}
.source-scaffold-note{
  font-size:.8rem;color:var(--ink-faint);background:#f2ecd9;border:1px dashed var(--rule);
  border-radius:var(--radius);padding:10px 14px;margin-top:16px;
}

/* ---------- TOKENIZER GAME ---------- */
.tg-panel{
  background:var(--card);border:1px solid var(--rule);border-radius:6px;padding:26px;
  box-shadow:var(--paper-shadow);margin-bottom:24px;
}
.tg-input-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px;}
.tg-input-row input{
  flex:1;min-width:220px;padding:11px 14px;border:1px solid var(--ink-faint);border-radius:var(--radius);
  background:#fff;font-family:'Inter',sans-serif;font-size:.94rem;color:var(--ink);
}
.tg-input-row input:focus{outline:2px solid var(--amber);outline-offset:1px;}
.tg-token-row{display:flex;gap:8px;flex-wrap:wrap;min-height:44px;align-items:center;}
.tg-token{
  font-family:'IBM Plex Mono',monospace;font-size:.86rem;background:var(--paper);
  border:1px solid var(--rule);border-radius:5px;padding:7px 12px;color:var(--ink);
}
.tg-token-count{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--ink-faint);margin-top:10px;}
.tg-subword-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-top:6px;}
.tg-subword-card{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:12px 14px;}
.tg-subword-card .whole{font-family:'Fraunces',serif;font-size:.98rem;color:var(--ink);margin-bottom:6px;}
.tg-subword-card .pieces{display:flex;gap:5px;flex-wrap:wrap;}
.tg-piece{font-family:'IBM Plex Mono',monospace;font-size:.76rem;background:var(--amber-deep);color:#fff;
  border-radius:4px;padding:3px 8px;}

.tg-scatter-wrap{background:#fff;border:1px solid var(--rule);border-radius:var(--radius);padding:10px;}
.tg-scatter-legend{display:flex;gap:14px;flex-wrap:wrap;margin-top:14px;}
.tg-legend-item{display:flex;align-items:center;gap:6px;font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--ink-soft);}
.tg-legend-dot{width:9px;height:9px;border-radius:50%;display:inline-block;}
.tg-highlight-note{margin-top:12px;font-size:.86rem;color:var(--ink-soft);}

.tg-game-sentence{
  font-family:'Fraunces',serif;font-size:1.3rem;min-height:2.2em;color:var(--ink);
  padding:16px 18px;background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);
  margin-bottom:18px;line-height:1.5;
}
.tg-game-sentence .placeholder{color:var(--ink-faint);font-style:italic;font-size:1rem;}
.tg-candidates{display:flex;flex-direction:column;gap:8px;}
.tg-candidate-btn{
  display:flex;align-items:center;gap:12px;width:100%;text-align:left;
  padding:11px 14px;border:1px solid var(--ink-faint);border-radius:var(--radius);background:transparent;
  font-family:'Inter',sans-serif;font-size:.94rem;color:var(--ink);cursor:pointer;transition:all .12s ease;
}
.tg-candidate-btn:hover{border-color:var(--ink);background:#f2ecd9;}
.tg-candidate-bar{
  height:6px;border-radius:3px;background:var(--teal);flex-shrink:0;
}
.tg-candidate-pct{font-family:'IBM Plex Mono',monospace;font-size:.76rem;color:var(--ink-faint);margin-left:auto;flex-shrink:0;}
.tg-start-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px;}
.tg-recap{background:#f2ecd9;border:1px solid var(--rule);border-radius:var(--radius);padding:16px 18px;margin-top:16px;}
.tg-recap p{margin:0 0 8px;font-size:.9rem;color:var(--ink-soft);}
.tg-recap p:last-child{margin-bottom:0;}
.tg-scale-note{
  font-size:.82rem;color:var(--ink-faint);background:var(--card);border:1px dashed var(--rule);
  border-radius:var(--radius);padding:12px 16px;margin-top:18px;
}

.tg-custom-row{margin-top:16px;padding-top:16px;border-top:1px dashed var(--rule);}
.tg-custom-label{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.02em;color:var(--ink-faint);margin-bottom:8px;}
.tg-custom-input-group{display:flex;gap:10px;flex-wrap:wrap;}
.tg-custom-input-group input{
  flex:1;min-width:180px;padding:10px 12px;border:1px solid var(--ink-faint);border-radius:var(--radius);
  background:#fff;font-family:'Inter',sans-serif;font-size:.9rem;color:var(--ink);
}
.tg-custom-input-group input:focus{outline:2px solid var(--amber);outline-offset:1px;}
.tg-no-data-box{
  background:#f2ecd9;border:1px dashed var(--rule);border-radius:var(--radius);padding:14px 16px;
  font-size:.88rem;color:var(--ink-soft);
}

/* ---------- QA MODULE (Fundamentals / How AI Works accordions) ---------- */
.qa-toolbar{display:flex;justify-content:flex-end;gap:10px;margin-bottom:14px;}
.qa-part-heading{
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--amber-deep);margin:28px 0 10px;
}
.qa-part-heading:first-child{margin-top:0;}
#qa-accordion .faq-item.open .faq-a{max-height:none;}
.qa-answer-body p{margin:0 0 10px;}
.qa-answer-body p:last-child{margin-bottom:0;}
.qa-answer-body strong{color:var(--ink);}
.qa-answer-body table{width:100%;border-collapse:collapse;margin:10px 0;font-size:.86rem;}
.qa-answer-body th,.qa-answer-body td{border:1px solid var(--rule);padding:6px 10px;text-align:left;}
.qa-answer-body th{background:var(--paper);font-family:'IBM Plex Mono',monospace;font-size:.72rem;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);}
.qa-answer-body code{font-family:'IBM Plex Mono',monospace;font-size:.86rem;background:var(--paper);border-radius:3px;padding:1px 5px;}
.qa-answer-body ul,.qa-answer-body ol{margin:0 0 10px;padding-left:22px;}
.qa-answer-body li{margin-bottom:4px;}

/* ---------- NATIVE FLOW DIAGRAM (How AI Works pipeline) ---------- */
.flow-diagram{display:flex;flex-direction:column;align-items:center;gap:0;margin:8px auto 4px;max-width:640px;}
.flow-stage{
  width:100%;background:var(--card);border:1px solid var(--rule);border-radius:6px;
  padding:14px 20px;text-align:center;box-shadow:var(--paper-shadow);
}
.flow-stage.endpoint{background:var(--paper);border-color:var(--ink-faint);}
.flow-stage.gen{background:#f2ecd9;border-color:var(--amber-deep);}
.flow-stage .flow-num{
  font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--amber-deep);margin-bottom:4px;
}
.flow-stage h4{font-family:'Fraunces',serif;font-weight:600;font-size:1rem;margin:0 0 5px;color:var(--ink);}
.flow-stage p{margin:0;font-size:.82rem;color:var(--ink-soft);}
.flow-stage .flow-sub{font-family:'IBM Plex Mono',monospace;font-size:.76rem;color:var(--ink-faint);margin-top:6px;}
.flow-arrow{font-family:'IBM Plex Mono',monospace;color:var(--ink-faint);font-size:1.1rem;line-height:1;padding:3px 0;}
.flow-loop-wrap{
  width:100%;border:1px dashed var(--rust);border-radius:8px;padding:14px 14px 6px;
  display:flex;flex-direction:column;align-items:center;gap:0;margin:2px 0;background:rgba(162,69,30,.03);
}
.flow-loop-wrap .flow-stage{border-style:solid;}
.flow-loop-badge{
  font-family:'IBM Plex Mono',monospace;font-size:.68rem;color:var(--rust);text-align:center;
  margin-top:10px;letter-spacing:.02em;
}
.flow-loop-badge .arrow-sym{font-size:.9rem;}

/* ---------- FOOTER ---------- */
footer{border-top:1px solid var(--rule);padding:44px 0 60px;}
.footer-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;}
footer .fbrand{font-family:'Fraunces',serif;font-weight:700;font-size:1.1rem;}
footer p{color:var(--ink-soft);font-size:.84rem;max-width:52ch;}
footer .fdisclaim{font-size:.78rem;color:var(--ink-faint);max-width:60ch;}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);}