/* ============================================================
   fahedmahidi.com — essay page with a timeline rail
   Same RAISON tokens as the home page: ink, bone, teal, hairlines, radius 0
   ============================================================ */

@font-face{font-family:"Plex";src:url("../../fonts/PlexSans-300.ttf") format("truetype");font-weight:300;font-display:swap}
@font-face{font-family:"Plex";src:url("../../fonts/PlexSans-400.ttf") format("truetype");font-weight:400;font-display:swap}
@font-face{font-family:"Plex";src:url("../../fonts/PlexSans-500.ttf") format("truetype");font-weight:500;font-display:swap}
@font-face{font-family:"PlexMono";src:url("../../fonts/PlexMono-400.ttf") format("truetype");font-weight:400;font-display:swap}
@font-face{font-family:"PlexMono";src:url("../../fonts/PlexMono-500.ttf") format("truetype");font-weight:500;font-display:swap}
@font-face{font-family:"Michroma";src:url("../../fonts/Michroma.ttf") format("truetype");font-display:swap}

:root{
  --ink:#0D1214;
  --ink-2:#12181B;
  --bone:#F7F4EC;
  --text:#DCDAD2;
  --muted:#79848A;
  --muted-2:#9AA4AA;
  --line:#1C2529;
  --line-2:#2A353A;
  --teal:#1F6B60;
  --teal-b:#2F9184;
  --teal-d:#123F39;

  --mono:"PlexMono",ui-monospace,monospace;
  --sans:"Plex",system-ui,-apple-system,sans-serif;
  --display:"Michroma",var(--sans);

  --gut:clamp(20px,5vw,96px);
  --top-h:60px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--top-h) + 24px)}
body{
  background:var(--ink);color:var(--text);
  font-family:var(--sans);font-weight:300;
  font-size:clamp(16px,1.1vw,18px);line-height:1.75;
  letter-spacing:.004em;overflow-x:hidden;
}
::selection{background:var(--teal);color:var(--bone)}
a{color:inherit;text-decoration:none}

/* ---------- header ---------- */
.top{
  position:fixed;inset:0 0 auto 0;z-index:50;height:var(--top-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--gut);border-bottom:1px solid var(--line);
}
/* backdrop on a childless pseudo-element, never on .top itself (see home page) */
.top::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:rgba(13,18,20,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .top::before{background:var(--ink)}
}
.top__mark{font-family:var(--display);font-size:13px;letter-spacing:.14em;color:var(--bone)}
.top__mark i{font-style:normal;color:var(--teal-b)}
.top__back{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);transition:color .3s var(--ease);
}
.top__back:hover{color:var(--bone)}
.progress{position:absolute;left:0;bottom:-1px;height:1px;width:100%;background:var(--teal-b);transform-origin:0 50%;transform:scaleX(0)}

/* ---------- layout ---------- */
.post{
  max-width:1320px;margin:0 auto;padding:calc(var(--top-h) + clamp(48px,8vw,110px)) var(--gut) 120px;
  display:grid;grid-template-columns:minmax(0,680px) minmax(340px,400px);
  justify-content:space-between;column-gap:clamp(40px,6vw,110px);
}

/* ---------- article ---------- */
.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--teal-b);
  display:flex;flex-wrap:wrap;gap:6px 18px;
}
.eyebrow span+span{color:var(--muted)}
.title{
  font-family:var(--display);font-weight:400;color:var(--bone);
  font-size:clamp(30px,4.4vw,56px);line-height:1.08;letter-spacing:.02em;text-transform:uppercase;
  margin:22px 0 26px;
}
.title .ac{color:var(--teal-b)}
.dek{font-size:clamp(19px,1.6vw,23px);line-height:1.5;color:var(--bone);font-weight:300;max-width:34ch;text-wrap:balance}
.byline{
  margin:34px 0 0;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.byline b{font-weight:400;color:var(--bone)}

.essay{margin-top:56px}
.essay p{margin:0 0 1.25em;max-width:66ch}
.essay p b{font-weight:500;color:var(--bone)}
.part{margin-top:84px}
.part__no{
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--teal-b);
  display:flex;align-items:center;gap:14px;
}
.part__no::after{content:"";flex:1;height:1px;background:var(--line)}
.part h2{
  font-family:var(--sans);font-weight:400;color:var(--bone);
  font-size:clamp(24px,2.3vw,32px);line-height:1.25;letter-spacing:-.005em;margin:18px 0 28px;text-wrap:balance;
}
.essay h3{
  font-family:var(--sans);font-weight:500;color:var(--bone);font-size:1.02em;letter-spacing:.005em;
  margin:40px 0 12px;
}
.essay h3 span{font-family:var(--mono);font-weight:400;color:var(--teal-b);margin-right:10px;font-size:.85em}
.essay ol{margin:0 0 1.4em;padding:0;list-style:none;counter-reset:n;max-width:66ch}
.essay ol li{counter-increment:n;position:relative;padding:14px 0 14px 44px;border-top:1px solid var(--line)}
.essay ol li:last-child{border-bottom:1px solid var(--line)}
.essay ol li::before{
  content:counter(n,decimal-leading-zero);position:absolute;left:0;top:16px;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--teal-b);
}
.closing{font-size:1.12em;color:var(--bone);border-left:1px solid var(--teal-b);padding-left:22px;margin-top:36px}

/* paragraph linked to the timeline: a quiet mark in the margin while it is being read */
.essay [data-ev]{position:relative;transition:color .5s var(--ease)}
.essay [data-ev]::before{
  content:"";position:absolute;left:-22px;top:.55em;width:5px;height:5px;
  border:1px solid var(--line-2);transition:background .4s var(--ease),border-color .4s var(--ease);
}
.essay [data-ev].reading::before{background:var(--teal-b);border-color:var(--teal-b)}
.essay [data-ev].flash{animation:flash 1.6s var(--ease)}
@keyframes flash{0%{color:var(--bone);background:rgba(47,145,132,.14)}100%{background:transparent}}

/* ---------- sources ---------- */
.sources{margin-top:84px;font-size:14px;line-height:1.6;color:var(--muted-2)}
.sources h2{font-family:var(--mono);font-weight:400;font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--teal-b);margin-bottom:8px}
.sources p.note{margin-bottom:18px;color:var(--muted)}
.sources ul{list-style:none}
.sources li{padding:10px 0;border-top:1px solid var(--line)}
.sources a{color:var(--bone);border-bottom:1px solid var(--teal);transition:border-color .3s var(--ease)}
.sources a:hover{border-color:var(--teal-b)}
.sources em{font-style:italic}

.foot{margin-top:72px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.foot a:hover{color:var(--bone)}

/* ---------- timeline rail ---------- */
/* the rail fills the grid column so its sticky child has the whole essay to travel along */
#rail-home{position:relative}
#rail-home .rail{height:100%}
.rail{position:relative}
.rail__in{
  position:sticky;top:calc(var(--top-h) + 20px);
  height:calc(100vh - var(--top-h) - 40px);height:calc(100svh - var(--top-h) - 40px);
  display:flex;flex-direction:column;
  border-left:1px solid var(--line);padding-left:clamp(20px,2vw,30px);
}
.rail__head{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.rail__head h2{font-family:var(--mono);font-weight:400;font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--teal-b)}
.rail__head p{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.legend{display:flex;gap:18px;margin:10px 0 4px;font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2)}
.legend span{display:flex;align-items:center;gap:7px}
.legend i{width:9px;height:9px;display:inline-block}
.legend .h{background:var(--teal-b)}
.legend .b{border:1px solid var(--bone)}
.tl{flex:1;min-height:0;position:relative}
.tl svg{display:block;width:100%;height:100%;overflow:visible}

/* svg parts */
.tl .grid line{stroke:var(--line);stroke-width:1}
.tl .grid text{font-family:var(--mono);font-size:9px;letter-spacing:.06em;fill:var(--muted);text-anchor:middle}
.tl .axis{stroke:var(--line-2);stroke-width:1}
.tl .side{font-family:var(--mono);font-size:9px;letter-spacing:.2em;text-transform:uppercase;fill:var(--muted)}
.tl .ev{cursor:pointer;outline:none}
.tl .ev .bar{transition:stroke-width .3s var(--ease),stroke .3s var(--ease),fill .3s var(--ease)}
.tl .ev.holds .bar{stroke:var(--teal);fill:var(--teal)}
.tl .ev.breaks .bar{stroke:var(--muted-2);fill:var(--ink)}
.tl .ev .lead{stroke:var(--line-2);stroke-width:1;fill:none;transition:stroke .3s var(--ease)}
.tl .ev .nm{font-family:var(--sans);font-size:12px;font-weight:400;fill:var(--muted-2);transition:fill .3s var(--ease)}
.tl .ev .yr{font-family:var(--mono);font-size:9.5px;letter-spacing:.04em;fill:var(--muted);transition:fill .3s var(--ease)}
.tl .ev .hit{fill:transparent}
.tl .ev:hover .nm,.tl .ev:focus-visible .nm,.tl .ev.on .nm{fill:var(--bone)}
.tl .ev.on .yr,.tl .ev.sel .yr{fill:var(--teal-b)}
.tl .ev:hover .lead,.tl .ev.on .lead,.tl .ev.sel .lead{stroke:var(--teal-b)}
.tl .ev.holds:hover .bar,.tl .ev.holds.on .bar,.tl .ev.holds.sel .bar{stroke:var(--teal-b);fill:var(--teal-b)}
.tl .ev.breaks:hover .bar,.tl .ev.breaks.on .bar,.tl .ev.breaks.sel .bar{stroke:var(--bone)}
.tl .ev.sel .nm{fill:var(--bone);font-weight:500}
.tl .ev:focus-visible .hit{stroke:var(--teal-b);stroke-width:1}
.tl .now .dot{fill:var(--teal-b)}
.tl .now .ring{fill:none;stroke:var(--teal-b);stroke-width:1;transform-box:fill-box;transform-origin:center;animation:ring 2.8s var(--ease) infinite}
.tl .now text{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;fill:var(--bone);text-anchor:middle}
@keyframes ring{0%{opacity:.9;transform:scale(1)}100%{opacity:0;transform:scale(2.6)}}
.tl .cursor{transition:transform .7s var(--ease),opacity .4s var(--ease)}
.tl .cursor line{stroke:var(--teal-b);stroke-width:1;stroke-dasharray:2 4}

/* detail card */
.card{
  border-top:1px solid var(--line-2);padding:16px 0 4px;min-height:236px;
  transition:opacity .25s var(--ease);
}
.card.fade{opacity:0}
.card__meta{display:flex;justify-content:space-between;gap:10px;font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase}
.card__meta .v{color:var(--teal-b)}
.card__meta .v.breaks{color:var(--bone)}
.card__meta .y{color:var(--muted)}
.card h3{font-weight:400;color:var(--bone);font-size:17px;line-height:1.3;margin:8px 0 6px}
.card p{font-size:14px;line-height:1.55;color:var(--text)}
.card__links{display:flex;gap:18px;margin-top:10px;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase}
.card__links a{color:var(--muted-2);border-bottom:1px solid var(--line-2);padding-bottom:2px;transition:color .3s var(--ease),border-color .3s var(--ease)}
.card__links a:hover{color:var(--bone);border-color:var(--teal-b)}
.card .card__hint{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:4px}

/* ---------- tablet & phone: the rail becomes a figure inside the essay ---------- */
@media (max-width:1080px){
  .post{grid-template-columns:minmax(0,680px);justify-content:center}
  .rail{margin:48px 0 8px}
  .rail__in{position:static;height:auto;border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:18px}
  .tl{height:720px;flex:none}
  .card{min-height:0}
  .essay [data-ev]::before{display:none}
}
@media (max-width:520px){
  .tl{height:680px}
  .tl .ev .nm{font-size:11px}
  .legend{gap:12px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}