:root{
  --ink:#111111;
  --paper:#ffffff;
  --grey:#5a5a5a;
  --line:#111111;
  --hair:#d4d4d4;
  --signal:#c81e2c;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;max-width:100%;overflow-x:hidden;}
body{
  margin:0;
  max-width:100%;
  overflow-x:hidden;
  background:var(--paper);
  color:var(--ink);
  font-family:"Helvetica Neue","Neue Haas Grotesk Text Pro","Arial",-apple-system,BlinkMacSystemFont,sans-serif;
  font-size:19px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-wrap:break-word;
  word-break:break-word;
}
a{color:inherit;}
h1,h2,h3{font-family:inherit;}
.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 clamp(18px,4vw,48px);
}

/* ---------- NAV ---------- */
.nav{
  border-bottom:2px solid var(--line);
  position:sticky;
  top:0;
  background:var(--paper);
  z-index:10;
}
.nav-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 24px;
  padding:16px clamp(18px,4vw,48px);
}
.wordmark{
  font-weight:700;
  font-size:15px;
  letter-spacing:0.02em;
  text-decoration:none;
  max-width:38ch;
}
.navlinks{
  display:flex;
  gap:22px;
  flex-wrap:wrap;
  font-size:13px;
  font-weight:700;
  letter-spacing:0.06em;
  text-transform:uppercase;
}
.navlinks a{text-decoration:none;border-bottom:2px solid transparent;padding-bottom:2px;}
.navlinks a:hover,.navlinks a:focus-visible{border-bottom-color:var(--signal);}
.navmeta{
  font-size:12px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--grey);
  white-space:nowrap;
}

/* ---------- HERO ---------- */
.hero{
  border-bottom:2px solid var(--line);
  padding:clamp(28px,5vw,56px) 0 clamp(20px,4vw,36px);
}
.kicker{
  font-size:14px;
  font-weight:700;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--grey);
  margin:0 0 14px;
}
h1.headline{
  font-size:clamp(2.1rem,5.6vw,4.1rem);
  line-height:0.98;
  letter-spacing:-0.01em;
  font-weight:700;
  margin:0 0 clamp(16px,3vw,22px);
  max-width:16ch;
}
.subhead{
  font-size:clamp(1.05rem,2.4vw,1.3rem);
  color:var(--grey);
  max-width:52ch;
  margin:0 0 clamp(20px,4vw,32px);
  line-height:1.45;
}
.subgrid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border-top:1px solid var(--hair);
}
.sub{
  min-width:0;
  padding:20px 24px 20px 0;
  border-right:1px solid var(--hair);
}
.sub:last-child{border-right:none;padding-left:24px;padding-right:0;}
.sub-label{
  display:block;
  font-size:12px;
  font-weight:700;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--ink);
  margin-bottom:12px;
}
.sub-label.signal{color:var(--signal);}
.sub-list{margin:0 0 14px;padding-left:20px;}
.sub-list li{margin-bottom:8px;font-size:18px;line-height:1.45;}
.sub-list li:last-child{margin-bottom:0;}
.attribution{margin:0;font-size:14px;color:var(--grey);border-top:1px solid var(--hair);padding-top:10px;}

.strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--hair);
  margin-top:0;
}
.strip-item{
  min-width:0;
  padding:20px 20px 20px 16px;
  border-right:1px solid var(--hair);
}
.strip-item:first-child{padding-left:0;}
.strip-item:last-child{border-right:none;}
.strip-big{
  display:block;
  font-size:clamp(1.3rem,2.4vw,1.7rem);
  font-weight:700;
  letter-spacing:-0.01em;
  margin-bottom:8px;
  color:var(--ink);
}
.strip-small{
  display:block;
  font-size:14px;
  color:var(--grey);
  line-height:1.4;
}

/* ---------- SECTIONS ---------- */
section.numbered{
  border-bottom:2px solid var(--line);
  padding:clamp(28px,5vw,48px) 0;
}
.sec-head{
  display:grid;
  grid-template-columns:auto 1fr;
  align-items:baseline;
  gap:18px;
  margin-bottom:clamp(24px,4vw,36px);
}
.sec-num{
  font-size:clamp(2.6rem,7vw,4.8rem);
  font-weight:700;
  line-height:0.85;
  letter-spacing:-0.02em;
  color:var(--ink);
}
.sec-title{
  font-size:clamp(1.1rem,2.4vw,1.5rem);
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.03em;
  display:block;
}
.sec-sub{
  font-size:15px;
  color:var(--grey);
  display:block;
  font-weight:400;
  text-transform:none;
  letter-spacing:normal;
  margin-top:4px;
  max-width:60ch;
}

.block-head{
  font-size:clamp(1.05rem,2vw,1.25rem);
  font-weight:700;
  margin:clamp(32px,5vw,44px) 0 18px;
  letter-spacing:-0.005em;
}

/* prose columns */
.prose-cols{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(24px,4vw,48px);
  margin-bottom:clamp(8px,2vw,16px);
}
.prose-col h3{font-size:1.05rem;font-weight:700;margin:0 0 14px;}
.prose-col p{margin:0 0 16px;}
.prose-col p:last-child{margin-bottom:0;}

/* table */
table{
  width:100%;
  min-width:640px;
  border-collapse:collapse;
  font-size:17px;
}
#reading-table th:nth-child(3),
#reading-table td:nth-child(3){
  white-space:nowrap;
  width:1%;
}
th{
  text-align:left;
  font-size:12px;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--grey);
  padding:0 16px 10px 0;
  border-bottom:2px solid var(--line);
  vertical-align:bottom;
}
td{
  padding:16px 16px 16px 0;
  border-bottom:1px solid var(--hair);
  vertical-align:top;
  line-height:1.45;
}
tr:last-child td{border-bottom:1px solid var(--line);}
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin-bottom:8px;}
.scroll-hint{display:none;}
@media (max-width:680px){
  .scroll-hint{
    display:block;
    font-size:12px;
    font-weight:700;
    letter-spacing:0.08em;
    text-transform:uppercase;
    color:var(--signal);
    margin:0 0 10px;
  }
}

/* four invisibles grid */
.invisibles-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border-top:1px solid var(--hair);
  border-left:1px solid var(--hair);
}
.invisible-card{
  padding:22px;
  border-right:1px solid var(--hair);
  border-bottom:1px solid var(--hair);
  position:relative;
}
.invisible-num{
  display:block;
  font-size:13px;
  font-weight:700;
  letter-spacing:0.08em;
  color:var(--signal);
  margin-bottom:10px;
}
.invisible-card p{margin:0;font-size:17px;line-height:1.5;}

/* ---------- TUESDAY TIMELINE ---------- */
.timeline{
  position:relative;
  padding-left:clamp(28px,5vw,48px);
  border-left:2px solid var(--hair);
}
.tl-item{
  position:relative;
  padding-bottom:clamp(28px,4vw,40px);
  opacity:1;
  transform:none;
  transition:opacity .5s ease, transform .5s ease;
}
.tl-item.reveal-pending{opacity:0;transform:translateY(16px);}
.tl-item::before{
  content:"";
  position:absolute;
  left:calc(-1 * clamp(28px,5vw,48px) - 2px);
  top:6px;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--paper);
  border:2px solid var(--ink);
}
.tl-time{
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:17px;
  display:inline-block;
  margin-right:12px;
}
.tl-tag{
  display:inline-block;
  font-size:11px;
  font-weight:700;
  letter-spacing:0.07em;
  text-transform:uppercase;
  color:var(--signal);
}
.tl-title{
  font-size:1.05rem;
  font-weight:700;
  margin:8px 0 8px;
}
.tl-body{margin:0;max-width:66ch;}

/* ---------- GRAPH ---------- */
.graph-stories{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:0 0 clamp(20px,4vw,28px);
}
.story-btn{
  font-family:inherit;
  font-size:14px;
  font-weight:700;
  letter-spacing:0.01em;
  padding:10px 16px;
  background:var(--paper);
  color:var(--ink);
  border:2px solid var(--ink);
  cursor:pointer;
  text-align:left;
}
.story-btn:hover,.story-btn:focus-visible{border-color:var(--signal);color:var(--signal);}
.story-btn[aria-pressed="true"]{background:var(--signal);border-color:var(--signal);color:#fff;}

.graph-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(220px,300px);
  gap:clamp(18px,3vw,32px);
  align-items:start;
}
.graph-svg-wrap{
  border:1px solid var(--hair);
  min-width:0;
}
.graph-svg-wrap svg{display:block;width:100%;height:auto;}

.gnode{cursor:pointer;}
.gnode:focus-visible{outline:2px solid var(--signal);outline-offset:2px;}
.gnode-shape{fill:var(--paper);stroke:var(--ink);stroke-width:2;}
.gnode-shape.type-thread{fill:#eee;stroke:var(--grey);stroke-width:1.5;}
.gnode-shape.type-group{fill:#eee;stroke:var(--grey);stroke-width:1.5;stroke-dasharray:4 3;}
.gnode-label{
  font-family:"Helvetica Neue",Arial,sans-serif;
  font-size:15px;
  font-weight:600;
  fill:var(--ink);
  pointer-events:none;
}
.gnode-label.type-thread,.gnode-label.type-group{fill:var(--grey);font-size:15px;font-weight:600;}

.gedge{fill:none;stroke:var(--ink);stroke-width:1.75;cursor:pointer;}
.gedge.status-blocked{stroke-dasharray:6 5;}
.gedge.status-flowing{stroke-dasharray:none;}
.gedge.status-carried{stroke:var(--hair);stroke-width:1;stroke-dasharray:none;}
.gedge-hit{fill:none;stroke:transparent;stroke-width:14;cursor:pointer;}
.gedge:focus-visible{outline:2px solid var(--signal);outline-offset:2px;}

.graph-svg-wrap.has-focus .gnode.dim,
.graph-svg-wrap.has-focus .gedge.dim{opacity:.15;}
.gedge.active{stroke:var(--signal);stroke-width:2.5;}
.gnode.active .gnode-shape{stroke:var(--signal);stroke-width:3;}
.gnode.neighbour .gnode-shape{stroke:var(--signal);}

.graph-detail{
  border:1px solid var(--hair);
  padding:18px;
  min-height:160px;
  font-size:15px;
}
.detail-empty{color:var(--grey);margin:0;}
.detail-kicker{
  font-size:11px;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--grey);
  margin:0 0 6px;
}
.detail-title{font-size:1.05rem;font-weight:700;margin:0 0 10px;}
.detail-body{margin:0 0 12px;line-height:1.5;}
.detail-pill{
  display:inline-block;
  font-size:11px;
  font-weight:700;
  letter-spacing:0.06em;
  text-transform:uppercase;
  padding:3px 8px;
  border:1px solid currentColor;
  margin-right:8px;
}
.detail-pill.blocked{color:var(--signal);}
.detail-pill.flowing{color:var(--ink);}
.detail-pill.chronic{color:var(--signal);}
.detail-pill.carried{color:var(--grey);}
.detail-meta{margin:10px 0 0;font-size:13px;color:var(--grey);}

.graph-legend{
  display:flex;
  flex-wrap:wrap;
  gap:20px;
  margin-top:clamp(18px,3vw,26px);
  font-size:13px;
  color:var(--grey);
  align-items:center;
}
.legend-item{display:flex;align-items:center;gap:8px;}
.legend-line{width:24px;height:0;border-top:2px solid var(--ink);flex:none;}
.legend-line.dashed{border-top-style:dashed;}
.legend-line.muted{border-top-color:var(--hair);border-top-width:1px;}

@media (max-width:820px){
  .graph-shell{grid-template-columns:1fr;}
}

/* ---------- THE MADNESS (time-lapse) ---------- */
.madness-shell{margin-top:clamp(20px,3vw,28px);}
.madness-canvas-wrap{
  position:relative;
  border:1px solid var(--hair);
  width:100%;
  height:540px;
  overflow:hidden;
  background:var(--paper);
}
#madness-canvas{display:block;width:100%;height:100%;}
.madness-hud{
  position:absolute;
  top:0;
  left:0;
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:12px 14px;
  background:rgba(255,255,255,.88);
  border-right:1px solid var(--hair);
  border-bottom:1px solid var(--hair);
}
.hud-row{display:flex;justify-content:space-between;gap:18px;align-items:baseline;}
.hud-label{
  font-size:10.5px;
  font-weight:700;
  letter-spacing:0.07em;
  text-transform:uppercase;
  color:var(--grey);
  white-space:nowrap;
}
.hud-value{
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--ink);
  min-width:3ch;
  text-align:right;
}
.madness-time-label{
  position:absolute;
  bottom:10px;
  left:12px;
  font-size:11px;
  font-weight:700;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--grey);
  background:rgba(255,255,255,.85);
  padding:3px 8px;
}
.madness-caption{
  margin:14px 0 0;
  font-size:16px;
  color:var(--ink);
  min-height:1.5em;
  max-width:66ch;
}
.madness-controls{
  display:flex;
  gap:10px;
  margin-top:14px;
}
.madness-btn{
  font-family:inherit;
  font-size:13px;
  font-weight:700;
  letter-spacing:0.05em;
  text-transform:uppercase;
  padding:9px 16px;
  background:var(--paper);
  color:var(--ink);
  border:2px solid var(--ink);
  cursor:pointer;
}
.madness-btn:hover,.madness-btn:focus-visible{border-color:var(--signal);color:var(--signal);}
.madness-bridge{
  margin:clamp(24px,4vw,32px) 0 0;
  font-size:1.05rem;
  font-weight:700;
  border-top:1px solid var(--hair);
  padding-top:18px;
}

@media (max-width:640px){
  .madness-canvas-wrap{height:620px;}
  .hud-label{font-size:9.5px;}
  .hud-value{font-size:12px;}
}

/* ---------- SIX LENSES ---------- */
.lenses-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  border-top:1px solid var(--hair);
  border-left:1px solid var(--hair);
}
.lens-card{
  border-right:1px solid var(--hair);
  border-bottom:1px solid var(--hair);
  padding:22px;
}
.lens-num{
  display:block;
  font-size:13px;
  font-weight:700;
  color:var(--signal);
  letter-spacing:0.06em;
  margin-bottom:8px;
}
.lens-name{font-size:1.15rem;font-weight:700;margin:0 0 10px;}
.lens-def{margin:0 0 14px;font-size:17px;}
.lens-moment{
  font-size:14px;
  color:var(--grey);
  border-top:1px solid var(--hair);
  padding-top:12px;
  margin:0 0 14px;
}
.lens-moment b{color:var(--ink);font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.06em;display:block;margin-bottom:6px;}
.lens-toggle{
  font-family:inherit;
  font-size:13px;
  font-weight:700;
  letter-spacing:0.05em;
  text-transform:uppercase;
  background:none;
  border:none;
  color:var(--signal);
  padding:0;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:6px;
}
.lens-toggle .chev{transition:transform .2s ease;display:inline-block;}
.lens-toggle[aria-expanded="true"] .chev{transform:rotate(180deg);}
.lens-expand{
  overflow:hidden;
  max-height:0;
  transition:max-height .3s ease;
}
.lens-expand[data-open="true"]{max-height:1200px;}
.lens-thinkers{
  list-style:none;
  margin:16px 0 0;
  padding:14px 0 0;
  border-top:1px solid var(--hair);
  font-size:14px;
  color:var(--grey);
}
.lens-thinkers li{margin-bottom:6px;}
.lens-expanded-body{margin:14px 0 0;font-size:16px;line-height:1.55;}

@media (max-width:900px){
  .lenses-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:620px){
  .lenses-grid{grid-template-columns:1fr;}
}

/* ---------- WHY WEEKS FEEL BAD ---------- */
.naive-label{
  font-size:12px;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--grey);
  margin:0 0 6px;
}
.naive-metric{
  font-size:clamp(1.6rem,4vw,2.4rem);
  font-weight:700;
  color:var(--grey);
  text-decoration:line-through;
  text-decoration-color:var(--signal);
  text-decoration-thickness:3px;
  margin:0 0 20px;
  letter-spacing:-0.01em;
}
.produced-list{
  list-style:none;
  counter-reset:produced;
  margin:0 0 20px;
  padding:0;
  border-top:1px solid var(--hair);
}
.produced-list li{
  counter-increment:produced;
  position:relative;
  padding:16px 0 16px 42px;
  border-bottom:1px solid var(--hair);
  font-size:18px;
  font-weight:700;
  line-height:1.4;
}
.produced-list li::before{
  content:counter(produced);
  position:absolute;
  left:0;
  top:16px;
  font-size:14px;
  font-weight:700;
  color:var(--signal);
}
.payoff-line{
  font-size:1.15rem;
  font-weight:700;
  margin:0 0 8px;
}
.reframed-list{
  list-style:none;
  counter-reset:reframed;
  margin:0;
  padding:0;
}
.reframed-list li{
  counter-increment:reframed;
  position:relative;
  padding:14px 0 14px 42px;
  border-bottom:1px solid var(--hair);
  font-size:18px;
  line-height:1.5;
}
.reframed-list li:last-child{border-bottom:1px solid var(--line);}
.reframed-list li::before{
  content:counter(reframed);
  position:absolute;
  left:0;
  top:14px;
  font-size:20px;
  font-weight:700;
  color:var(--ink);
}

/* ---------- THINKERS TIMELINE STRIP ---------- */
.thinkers-scroll{
  display:flex;
  gap:0;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  padding-top:10px;
  padding-bottom:20px;
  border-top:2px solid var(--line);
  cursor:grab;
}
.thinkers-scroll:active{cursor:grabbing;}
.thinker-card{
  flex:0 0 240px;
  padding:20px 20px 0 0;
  margin-right:20px;
  border-right:1px solid var(--hair);
  position:relative;
}
.thinker-card::before{
  content:"";
  position:absolute;
  top:-2px;
  left:0;
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--ink);
  transform:translateY(-50%);
}
.thinker-year{
  display:block;
  font-size:13px;
  font-weight:700;
  color:var(--signal);
  letter-spacing:0.04em;
  margin:14px 0 8px;
}
.thinker-name{font-size:1.05rem;font-weight:700;margin:0 0 6px;}
.thinker-work{font-size:14px;font-style:italic;color:var(--grey);margin:0 0 10px;}
.thinker-contribution{font-size:15px;line-height:1.45;margin:0;}

/* ---------- FOOTER ---------- */
footer{
  padding:clamp(28px,4vw,40px) 0 clamp(32px,5vw,48px);
}
.footer-inner p{
  margin:0 0 12px;
  font-size:15px;
  color:var(--grey);
  max-width:70ch;
}
.footer-inner p:last-child{margin-bottom:0;color:var(--ink);}
.signal-link{
  text-decoration:underline;
  text-decoration-color:var(--signal);
  text-decoration-thickness:2px;
  font-weight:700;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width:820px){
  .subgrid{grid-template-columns:1fr;}
  .sub{border-right:none;padding-right:0;border-bottom:1px solid var(--hair);padding-bottom:16px;margin-bottom:16px;}
  .sub:last-child{border-bottom:none;padding-left:0;}
  .strip{grid-template-columns:1fr 1fr;}
  .strip-item:nth-child(2){border-right:none;}
  .strip-item{border-bottom:1px solid var(--hair);padding-bottom:16px;margin-bottom:16px;}
  .strip-item:nth-child(odd){padding-left:0;}
  .strip-item:nth-child(even){padding-left:16px;}
  .prose-cols{grid-template-columns:1fr;}
  .invisibles-grid{grid-template-columns:1fr;}
  .invisible-card{border-right:none;}
}

@media (max-width:480px){
  body{font-size:17px;}
  table{font-size:15px;}
  .navlinks{font-size:12px;gap:14px;}
  .sec-head{grid-template-columns:1fr;gap:4px;}
  .strip{grid-template-columns:1fr;}
  .strip-item{border-right:none;padding-left:0;}
  .sub-list li{font-size:16px;}
  .thinker-card{flex-basis:200px;}
}

/* Deliberately not theme-aware: this direction's whole point is a fixed
   black-on-white Swiss print aesthetic, regardless of system/site theme. */

@media (prefers-reduced-motion:reduce){
  .tl-item{transition:none;}
  .gnode,.gnode-shape,.gedge{transition:none;}
}

.gnode-shape,.gedge{transition:opacity .25s ease, stroke .2s ease, stroke-width .2s ease;}
.gnode{transition:opacity .25s ease;}

@keyframes driftA{0%,100%{transform:translate(0,0);}50%{transform:translate(2px,-2px);}}
@keyframes driftB{0%,100%{transform:translate(0,0);}50%{transform:translate(-2px,2px);}}
.gnode .drift-a{animation:driftA 7s ease-in-out infinite;}
.gnode .drift-b{animation:driftB 8.5s ease-in-out infinite;}
@media (prefers-reduced-motion:reduce){
  .gnode .drift-a,.gnode .drift-b{animation:none;}
}