/* ── HFU Shared Module Stylesheet ── */
:root{--ink:#1a1410;--paper:#f4ede0;--paper-2:#ebe2cf;--rule:#1a1410;--accent:#a83229;--accent-2:#c97a2b;--muted:#6b5d4a;--gop:#2d5a3d}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Fraunces',Georgia,serif;font-optical-sizing:auto;background:var(--paper);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased;background-image:radial-gradient(circle at 20% 10%,rgba(168,50,41,0.04),transparent 50%),radial-gradient(circle at 80% 90%,rgba(201,122,43,0.05),transparent 50%);background-attachment:fixed}
.grain::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:1;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.1 0 0 0 0 0.08 0 0 0 0 0.06 0 0 0 0.4 0'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.5'/></svg>");opacity:0.35;mix-blend-mode:multiply}
.masthead{border-bottom:1.5px solid var(--rule);padding:1.2rem clamp(1.2rem,4vw,3rem);display:flex;justify-content:space-between;align-items:center;font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;position:relative;z-index:2}
.masthead .left{display:flex;gap:1.5rem;align-items:center}
.masthead a{color:inherit;text-decoration:none}
.masthead .dot{width:8px;height:8px;background:var(--accent);border-radius:50%;display:inline-block;margin-right:.5rem;animation:pulse 2.5s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero{padding:clamp(2rem,6vw,5rem) clamp(1.2rem,4vw,3rem) clamp(2rem,5vw,4rem);border-bottom:1.5px solid var(--rule);position:relative;z-index:2}
.hero .meta{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);display:flex;gap:1.5rem;flex-wrap:wrap;margin-bottom:2rem}
.hero .meta span:first-child{color:var(--accent);font-weight:600}
.hero h1{font-family:'Fraunces',serif;font-weight:400;font-size:clamp(2.4rem,7vw,5.5rem);line-height:.98;letter-spacing:-0.025em;max-width:18ch;font-variation-settings:"opsz" 144;margin-bottom:1.5rem}
.hero h1 em{font-style:italic;color:var(--accent);font-weight:300}
.hero .deck{font-size:clamp(1.05rem,1.6vw,1.3rem);max-width:55ch;font-weight:300;line-height:1.5;margin-top:1.5rem;border-left:2px solid var(--accent);padding-left:1.2rem}
.chapter-nav{position:sticky;top:0;z-index:10;background:var(--paper);border-bottom:1px solid var(--rule);padding:.8rem clamp(1.2rem,4vw,3rem);font-family:'JetBrains Mono',monospace;font-size:.68rem;letter-spacing:.15em;text-transform:uppercase;display:flex;gap:1.2rem;overflow-x:auto;scrollbar-width:none}
.chapter-nav::-webkit-scrollbar{display:none}
.chapter-nav a{color:var(--muted);text-decoration:none;white-space:nowrap;transition:color .2s;padding-bottom:2px;border-bottom:1px solid transparent}
.chapter-nav a:hover{color:var(--accent);border-color:var(--accent)}
section{padding:clamp(2.5rem,6vw,5rem) clamp(1.2rem,4vw,3rem);border-bottom:1px solid rgba(26,20,16,0.15);position:relative;z-index:2}
.section-head{display:grid;grid-template-columns:auto 1fr;gap:2rem;align-items:baseline;margin-bottom:2.5rem}
.section-num{font-family:'JetBrains Mono',monospace;font-size:.85rem;letter-spacing:.2em;color:var(--accent);font-weight:600;padding-top:.4rem}
.section-head h2{font-family:'Fraunces',serif;font-weight:400;font-size:clamp(1.7rem,3.5vw,2.6rem);line-height:1.05;letter-spacing:-0.02em;font-variation-settings:"opsz" 96;max-width:24ch}
.section-head h2 em{font-style:italic;color:var(--accent)}
.body{max-width:68ch;font-size:clamp(1rem,1.15vw,1.12rem);line-height:1.7}
.body p{margin-bottom:1.2rem}
.body p + p{text-indent:1.5em}
.body strong{font-weight:600}
.body em{font-style:italic}
.pull{font-family:'Fraunces',serif;font-style:italic;font-size:clamp(1.4rem,2.5vw,2rem);line-height:1.25;color:var(--accent);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:1.5rem 0;margin:2.5rem 0;max-width:30ch;font-weight:300}
.pull .mark{font-family:'Fraunces',serif;font-size:3rem;line-height:0;display:block;color:var(--accent);margin-bottom:.5rem}
.four-truths{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem;margin-top:2.5rem}
.truth{border-top:2px solid var(--ink);padding-top:1rem}
.truth .num{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.2em;color:var(--accent);font-weight:600;margin-bottom:.5rem}
.truth h3{font-family:'Fraunces',serif;font-weight:500;font-size:1.2rem;line-height:1.2;margin-bottom:.6rem;letter-spacing:-0.01em}
.truth p{font-size:.95rem;color:var(--muted);line-height:1.5}
.pnl-frame{background:var(--paper-2);border:1px solid var(--rule);padding:clamp(1.2rem,3vw,2.2rem);margin-top:2rem;font-family:'JetBrains Mono',monospace;font-size:.85rem;position:relative;box-shadow:6px 6px 0 var(--ink)}
.pnl-frame::before{content:attr(data-label);position:absolute;top:-9px;left:1rem;background:var(--paper-2);padding:0 .5rem;font-size:.6rem;letter-spacing:.2em;color:var(--muted)}
.pnl-row{display:grid;grid-template-columns:1fr auto auto;gap:1rem;padding:.45rem 0;border-bottom:1px dotted rgba(26,20,16,.2);align-items:baseline}
.pnl-row .val{text-align:right;font-weight:500}
.pnl-row .pct{text-align:right;color:var(--muted);font-size:.75rem;width:4em}
.pnl-row.subtotal{border-top:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);margin:.5rem 0;padding:.65rem .5rem;font-weight:700;background:rgba(168,50,41,.06)}
.pnl-row.gop{background:rgba(45,90,61,.1);color:var(--gop)}
.pnl-row.indent .label{padding-left:1.5em;color:var(--muted)}
.exercise{background:var(--ink);color:var(--paper);padding:clamp(2rem,5vw,3.5rem) clamp(1.2rem,4vw,3rem);border-bottom:1px solid var(--rule);position:relative;z-index:2}
.exercise .section-num{color:var(--accent-2)}
.exercise h2{color:var(--paper)}
.exercise h2 em{color:var(--accent-2)}
.exercise .body{color:var(--paper)}
.exercise .checklist{list-style:none;margin-top:1.5rem}
.exercise .checklist li{padding:1rem 0 1rem 2.5rem;border-bottom:1px dotted rgba(244,237,224,.2);position:relative;font-size:1rem;line-height:1.5}
.exercise .checklist li::before{content:"";position:absolute;left:0;top:1.1rem;width:18px;height:18px;border:1.5px solid var(--accent-2);background:transparent}
.exercise .checklist li .step{font-family:'JetBrains Mono',monospace;font-size:.65rem;letter-spacing:.2em;color:var(--accent-2);text-transform:uppercase;display:block;margin-bottom:.2rem}
.cohort-list{list-style:none;margin-top:1.5rem}
.cohort-list li{display:grid;grid-template-columns:auto 1fr;gap:1.5rem;padding:1.8rem 0;border-bottom:1px solid rgba(26,20,16,.15);align-items:start}
.cohort-list li:last-child{border-bottom:none}
.cohort-list .q-num{font-family:'JetBrains Mono',monospace;font-size:.75rem;letter-spacing:.18em;color:var(--accent);font-weight:600;padding:.3rem .55rem;border:1.5px solid var(--accent);border-radius:2px;align-self:start;min-width:2.5rem;text-align:center}
.cohort-list h4{font-family:'Fraunces',serif;font-weight:500;font-size:clamp(1.1rem,1.5vw,1.3rem);line-height:1.3;letter-spacing:-0.01em;margin-bottom:.5rem}
.cohort-list p{font-size:.95rem;line-height:1.55;color:var(--muted);max-width:60ch}
.ref-card{background:var(--paper-2);padding:clamp(2rem,5vw,3.5rem) clamp(1.2rem,4vw,3rem);position:relative;z-index:2}
.card{max-width:780px;margin:0 auto;background:var(--paper);border:1.5px solid var(--ink);box-shadow:8px 8px 0 var(--accent);padding:clamp(1.5rem,3vw,2.5rem);position:relative}
.card::before{content:"DETACH & KEEP";position:absolute;top:-12px;right:1.5rem;background:var(--paper);padding:.2rem .6rem;font-family:'JetBrains Mono',monospace;font-size:.6rem;letter-spacing:.2em;color:var(--accent);font-weight:600;border:1px solid var(--ink)}
.card h3{font-family:'Fraunces',serif;font-weight:500;font-size:1.5rem;margin-bottom:.3rem;letter-spacing:-0.01em}
.card .sub{font-family:'JetBrains Mono',monospace;font-size:.68rem;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;margin-bottom:1.5rem}
.card-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-top:1rem}
@media(max-width:600px){.card-grid{grid-template-columns:1fr}}
.card-block h4{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.2em;color:var(--accent);font-weight:600;margin-bottom:.6rem;text-transform:uppercase;border-bottom:1px solid var(--ink);padding-bottom:.3rem}
.card-block ul{list-style:none}
.card-block li{font-size:.9rem;line-height:1.5;padding:.4rem 0;border-bottom:1px dotted rgba(26,20,16,.15)}
.card-block li strong{display:block;font-weight:600;font-size:.95rem}
.card-block li span{color:var(--muted);font-style:italic;font-size:.85rem}
footer{padding:clamp(2rem,4vw,3rem) clamp(1.2rem,4vw,3rem);background:var(--ink);color:var(--paper-2);font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;position:relative;z-index:2}
footer a{color:var(--accent-2);text-decoration:none}
.reveal{opacity:0;transform:translateY(20px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:translateY(0)}
.mistakes{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:0;margin-top:2rem;border-top:1px solid var(--rule);border-left:1px solid var(--rule)}
.mistake{border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:1.5rem;background:var(--paper)}
.mistake .num{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.2em;color:var(--accent);font-weight:600;margin-bottom:.5rem}
.mistake h3{font-family:'Fraunces',serif;font-weight:500;font-size:1.15rem;line-height:1.2;margin-bottom:.5rem;letter-spacing:-0.01em}
.mistake p{font-size:.9rem;color:var(--muted);line-height:1.55}
.mistake p strong{color:var(--ink)}
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:0;margin-top:2rem;border-top:1px solid var(--rule);border-left:1px solid var(--rule)}
.kpi-cell{border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:1.5rem;background:var(--paper)}
.kpi-cell .cat{font-family:'JetBrains Mono',monospace;font-size:.65rem;letter-spacing:.18em;color:var(--accent);font-weight:600;text-transform:uppercase;margin-bottom:.5rem}
.kpi-cell h3{font-family:'Fraunces',serif;font-weight:500;font-size:1.4rem;line-height:1.1;letter-spacing:-0.015em;margin-bottom:.6rem}
.kpi-cell h3 em{font-style:italic;color:var(--accent);font-weight:300}
.kpi-cell .formula{font-family:'JetBrains Mono',monospace;font-size:.78rem;background:var(--paper-2);padding:.5rem .7rem;border-left:2px solid var(--accent);margin-bottom:.7rem;line-height:1.4}
.kpi-cell p{font-size:.88rem;color:var(--muted);line-height:1.55}
.kpi-cell .question{font-size:.82rem;font-style:italic;margin-top:.6rem;border-top:1px dotted rgba(26,20,16,.2);padding-top:.6rem}
.kpi-cell .question strong{font-weight:600;font-style:normal}


/* ── Module-specific additions ── */

/* — Module 01 — */

  .pnl-row.indent2 .label{padding-left:3em;color:var(--muted);font-size:.78rem}

  .pnl-legend{
    display:flex;gap:1.5rem;flex-wrap:wrap;
    margin-top:1.2rem;font-family:'JetBrains Mono',monospace;
    font-size:.65rem;letter-spacing:.15em;color:var(--muted);
    text-transform:uppercase;
  }

  .pnl-legend span::before{
    content:"";display:inline-block;width:10px;height:10px;
    background:var(--accent);margin-right:.4rem;vertical-align:middle;
  }

  .pnl-legend span:nth-child(2)::before{background:var(--gop)}


  /* ── Glossary ─────────────────────────── */
  .glossary{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:0;
    margin-top:2rem;
    border-top:1px solid var(--rule);
    border-left:1px solid var(--rule);
  }

  .term{
    border-right:1px solid var(--rule);
    border-bottom:1px solid var(--rule);
    padding:1.2rem;
    background:var(--paper);
    transition:background .2s;
  }

  .term:hover{background:var(--paper-2)}

  .term dt{
    font-family:'JetBrains Mono',monospace;
    font-size:.7rem;letter-spacing:.18em;
    color:var(--accent);font-weight:600;
    margin-bottom:.4rem;text-transform:uppercase;
  }

  .term .name{
    font-family:'Fraunces',serif;
    font-size:1.15rem;font-weight:500;
    margin-bottom:.5rem;letter-spacing:-0.01em;
  }

  .term dd{font-size:.92rem;line-height:1.5;color:var(--ink)}

/* — Module 02 — */


  /* ── Department detail card ─────────────────────────── */
  .dept{
    margin-top:3rem;
    border:1.5px solid var(--rule);
    background:var(--paper);
    overflow:hidden;
  }

  .dept-head{
    background:var(--ink);color:var(--paper);
    padding:1.5rem clamp(1.2rem,3vw,2rem);
    display:grid;
    grid-template-columns:auto 1fr auto;
    gap:1.5rem;align-items:center;
  }

  .dept-head .badge{
    font-family:'JetBrains Mono',monospace;
    font-size:.7rem;letter-spacing:.2em;
    color:var(--accent-2);font-weight:600;
    border:1.5px solid var(--accent-2);
    padding:.3rem .55rem;
  }

  .dept-head h3{
    font-family:'Fraunces',serif;
    font-weight:400;font-size:clamp(1.4rem,2.2vw,1.8rem);
    letter-spacing:-0.015em;
  }

  .dept-head h3 em{font-style:italic;color:var(--accent-2);font-weight:300}

  .dept-head .margin-pill{
    font-family:'JetBrains Mono',monospace;
    font-size:.7rem;letter-spacing:.15em;
    color:var(--paper-2);
    text-align:right;
  }

  .dept-head .margin-pill strong{
    display:block;color:var(--accent-2);font-size:1.1rem;letter-spacing:.05em;
    font-family:'Fraunces',serif;font-weight:500;
  }

  .dept-body{padding:clamp(1.5rem,3vw,2rem)}

  .dept-body .body{margin-bottom:1.5rem}


  .breakdown{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:0;
    border-top:1px solid var(--rule);
    border-left:1px solid var(--rule);
    margin-top:1.5rem;
  }

  .breakdown .cell{
    border-right:1px solid var(--rule);
    border-bottom:1px solid var(--rule);
    padding:1rem 1.2rem;
    background:var(--paper-2);
  }

  .breakdown .cell-label{
    font-family:'JetBrains Mono',monospace;
    font-size:.65rem;letter-spacing:.18em;
    color:var(--accent);font-weight:600;
    text-transform:uppercase;margin-bottom:.4rem;
  }

  .breakdown .cell-value{
    font-family:'Fraunces',serif;
    font-size:1.1rem;font-weight:500;
    line-height:1.3;letter-spacing:-0.01em;
    margin-bottom:.3rem;
  }

  .breakdown .cell-note{
    font-size:.82rem;color:var(--muted);
    font-style:italic;line-height:1.4;
  }


  /* ── Mini P&L inside dept ─────────────────────────── */
  .mini-pnl{
    background:var(--paper-2);
    border:1px solid var(--rule);
    padding:1.2rem;
    margin-top:1.5rem;
    font-family:'JetBrains Mono',monospace;
    font-size:.82rem;
    position:relative;
  }

  .mini-pnl::before{
    content:attr(data-label);
    position:absolute;top:-9px;left:1rem;
    background:var(--paper-2);padding:0 .5rem;
    font-size:.6rem;letter-spacing:.2em;color:var(--muted);
  }

  .mini-pnl .row{
    display:grid;grid-template-columns:1fr auto auto;
    gap:1rem;padding:.4rem 0;
    border-bottom:1px dotted rgba(26,20,16,.2);
    align-items:baseline;
  }

  .mini-pnl .row .val{text-align:right;font-weight:500}

  .mini-pnl .row .pct{text-align:right;color:var(--muted);font-size:.72rem;width:4em}

  .mini-pnl .row.head{font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:.7rem;color:var(--muted)}

  .mini-pnl .row.total{
    border-top:1.5px solid var(--ink);
    border-bottom:1.5px solid var(--ink);
    margin-top:.4rem;padding:.55rem 0;font-weight:700;
    background:rgba(45,90,61,.08);color:var(--gop);
    padding-left:.4rem;padding-right:.4rem;
  }

  .mini-pnl .row.indent .label{padding-left:1.2em;color:var(--muted)}

/* — Module 03 — */

  .waterfall{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.5rem;margin-top:2rem;font-family:'JetBrains Mono',monospace;font-size:.7rem}

  .wf-step{background:var(--paper-2);border:1px solid var(--rule);padding:1rem .8rem;text-align:center;position:relative}

  .wf-step.gop-step{background:var(--gop);color:var(--paper)}

  .wf-step.ebitda-step{background:var(--ink);color:var(--paper)}

  .wf-step .wf-label{letter-spacing:.15em;text-transform:uppercase;margin-bottom:.4rem;opacity:.7;font-size:.6rem}

  .wf-step .wf-value{font-family:'Fraunces',serif;font-size:1.1rem;font-weight:500;letter-spacing:-0.01em}

  .wf-step .wf-margin{font-size:.65rem;opacity:.8;margin-top:.2rem}

/* — Module 04 — */

  .ladder{display:grid;grid-template-columns:1fr;gap:0;margin-top:2rem;border-top:1.5px solid var(--rule)}

  .rung{display:grid;grid-template-columns:auto 1fr auto;gap:2rem;align-items:center;padding:1.3rem 0;border-bottom:1px solid rgba(26,20,16,.2);padding-left:.5rem;padding-right:.5rem}

  .rung .step{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.18em;color:var(--accent);font-weight:600;min-width:5rem}

  .rung .name{font-family:'Fraunces',serif;font-weight:500;font-size:clamp(1.05rem,1.4vw,1.25rem);letter-spacing:-0.01em}

  .rung .name em{font-style:italic;color:var(--accent);font-weight:400}

  .rung .desc{font-size:.85rem;color:var(--muted);font-style:italic;text-align:right;max-width:28ch}