/* ============================================================
   Shariah Retirement Plan
   English is the primary column; Arabic appears as .ar-note
   asides only where the idea lands better in Arabic.
   ============================================================ */

:root{
  --paper:#EFEEE9;
  --panel:#FAF9F6;
  --ink:#14181C;
  --ink-2:#5A6169;
  --ink-3:#8A9096;
  --rule:#CFCEC6;
  --rule-strong:#A9A89F;
  --teal:#1F5E5B;
  --teal-soft:#E3EDEB;
  --brass:#8A6D18;
  --danger:#A33B2A;
  --danger-soft:#F6E7E3;
  --growth:#2E6B4F;
  --growth-soft:#E4EFE8;

  --sans:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif;
  --ar:"Noto Naskh Arabic","Geeza Pro","Segoe UI",Tahoma,serif;
  --mono:"IBM Plex Mono","SF Mono",Menlo,monospace;

  --measure:44rem;
  --gap:clamp(1.5rem,4vw,3.5rem);
}

@media (prefers-color-scheme:dark){
  :root{
    --paper:#121416;--panel:#191C1F;--ink:#E8E6E0;--ink-2:#A3A8AC;--ink-3:#767B80;
    --rule:#2C3034;--rule-strong:#454A4F;--teal:#5FB3AC;--teal-soft:#16302E;
    --brass:#C9A544;--danger:#D97A66;--danger-soft:#2E1C18;
    --growth:#6FBF95;--growth-soft:#16281F;
  }
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

/* ---------- section: label rail + body ---------- */
.sec{display:grid;grid-template-columns:11rem 1fr;gap:0 var(--gap);align-items:start}
/* .rail is the label column; .body is the second grid cell. .body has no rule
   of its own on purpose, but it is NOT a leftover wrapper: removing it from
   the markup collapses every section layout. */
.sec > .rail{position:sticky;top:5rem}
@media(max-width:860px){
  .sec{grid-template-columns:1fr;gap:0}
  .sec > .rail{position:static;margin-bottom:.5rem}
}

/* ---------- Arabic clarification aside ----------
   Arabic is NOT a parallel translation. It appears only where the idea lands
   better in Arabic, usually because the concept itself is Arabic. */
.ar-note{
  direction:rtl;text-align:right;font-family:var(--ar);
  font-size:1.08rem;line-height:2.25;color:var(--ink-2);
  background:var(--teal-soft);border-inline-end:2px solid var(--teal);
  padding:.9rem 1.1rem;margin:1.1rem 0;max-width:var(--measure);
}
.ar-note strong{color:var(--ink);font-weight:600}
.ar-note p{margin:0 0 .6em;max-width:none}
.ar-note p:last-child{margin-bottom:0}
.ar-note .term{font-family:var(--mono);direction:ltr;display:inline-block;color:var(--teal)}

/* inline Arabic anywhere gets the Arabic face, never latin/mono metrics */
[lang=ar]{font-family:var(--ar);letter-spacing:normal;font-size:1.05em}
.ar{direction:rtl;text-align:right;font-family:var(--ar);line-height:2.2;font-size:1.05em}

/* ---------- shell ---------- */
.wrap{max-width:78rem;margin:0 auto;padding:0 clamp(1rem,4vw,2.5rem)}
section{padding:clamp(3rem,7vw,6rem) 0;border-top:1px solid var(--rule)}
section:first-of-type{border-top:0}

h1,h2,h3{margin:0 0 .6em;font-weight:600;letter-spacing:-.02em;line-height:1.2}
h1{font-size:clamp(2rem,5.2vw,3.4rem);font-weight:300}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:1.125rem;font-weight:600}
p{margin:0 0 1em;max-width:var(--measure)}
strong{font-weight:600}

.eyebrow{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--teal);margin:0 0 1.2rem;display:block;font-weight:500;
}

.lede{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--ink-2)}

/* ---------- numbers are always mono ---------- */
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:500}
.money{font-family:var(--mono);color:var(--brass);font-weight:600;font-variant-numeric:tabular-nums}

/* ---------- hero ---------- */
.hero{padding-top:clamp(3rem,9vw,7rem)}
.hero h1{max-width:16ch}
.ticket{
  display:inline-flex;flex-wrap:wrap;gap:.4rem 1.4rem;align-items:baseline;
  margin-top:2rem;padding:.9rem 1.2rem;border:1px solid var(--rule-strong);
  background:var(--panel);
}
.ticket b{font-family:var(--mono);font-size:1.05rem;letter-spacing:.02em}
.ticket span{font-family:var(--mono);font-size:.78rem;color:var(--ink-2)}

/* ---------- the curve ---------- */
.curve-panel{margin-top:clamp(2rem,5vw,3.5rem);background:var(--panel);border:1px solid var(--rule);padding:clamp(1rem,3vw,2rem)}
.curve-caption{display:flex;flex-wrap:wrap;gap:.4rem 1.5rem;margin-top:1rem;font-family:var(--mono);font-size:.75rem;color:var(--ink-2)}
.key{display:inline-flex;align-items:center;gap:.45rem}
.key i{width:10px;height:10px;display:inline-block;border-radius:2px}
svg{display:block;width:100%;height:auto;overflow:visible}
.draw{animation:draw 2.4s .3s cubic-bezier(.2,.7,.3,1) forwards}  /* dash length set by Projection.armDraw */
@keyframes draw{to{stroke-dashoffset:0}}
.fade{opacity:0;animation:fade .9s 1.9s ease forwards}
@keyframes fade{to{opacity:1}}

/* ---------- cards / callouts ---------- */
.card{background:var(--panel);border:1px solid var(--rule);padding:clamp(1.1rem,2.5vw,1.7rem);margin:0 0 1rem}
.card.teal{border-inline-start:3px solid var(--teal);background:var(--teal-soft)}
.card.warn{border-inline-start:3px solid var(--danger);background:var(--danger-soft)}
.card.good{border-inline-start:3px solid var(--growth);background:var(--growth-soft)}
.card p:last-child{margin-bottom:0}
.card h3{margin-top:0}

.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem}
.note{font-size:.78rem;color:var(--ink-2);max-width:none}
.note b{color:var(--ink)}

/* one-line Arabic clarification inside a note */
.ar-inline{
  display:block;margin-top:.65rem;padding-top:.65rem;border-top:1px solid var(--rule);
  direction:rtl;text-align:right;font-family:var(--ar);line-height:2;color:var(--ink-2);
}

/* ---------- tables ---------- */
.tw{overflow-x:auto;margin:1.2rem 0;border:1px solid var(--rule);background:var(--panel)}
table{border-collapse:collapse;width:100%;font-size:.875rem;min-width:24rem}
th,td{padding:.65rem .9rem;text-align:left;border-bottom:1px solid var(--rule);vertical-align:top}
th{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--ink-2);font-weight:500;background:var(--paper);white-space:nowrap;
  vertical-align:bottom;border-bottom:1px solid var(--rule-strong);
}
tbody tr:last-child td{border-bottom:0}

/* numeric columns: header and cells share one alignment */
th.n,td.n{text-align:right}
td.n{font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap}

/* narrow index columns (rank, year) read better centred */
th.c,td.c{text-align:center;width:1%;white-space:nowrap}
td.c{font-family:var(--mono);font-variant-numeric:tabular-nums}

tr.hi td{background:var(--teal-soft);font-weight:600}
td.bad{color:var(--danger)}
td.good{color:var(--growth)}

/* ---------- rules list ---------- */
.rules{list-style:none;padding:0;margin:0;counter-reset:r}
.rules li{
  padding:.85rem 0 .85rem 2.6rem;border-bottom:1px solid var(--rule);
  position:relative;counter-increment:r;max-width:var(--measure);
}
.rules li::before{
  content:counter(r,decimal-leading-zero);position:absolute;left:0;top:.95rem;
  font-family:var(--mono);font-size:.72rem;color:var(--teal);letter-spacing:.05em;
}
.rules li:last-child{border-bottom:0}

/* prose lists */
.body ul{max-width:var(--measure);padding-left:1.1rem;margin:0 0 1em}
.body ul li{margin-bottom:.5em}
.body a{color:var(--teal);text-decoration:none;border-bottom:1px solid var(--rule-strong)}
.body a:hover,.body a:focus-visible{border-bottom-color:var(--teal)}
.stop{color:var(--danger);font-weight:600}

/* ---------- big stat ---------- */
.stat{display:flex;flex-direction:column;gap:.2rem;padding:1rem 0}
.stat .v{font-family:var(--mono);font-size:clamp(1.6rem,4vw,2.6rem);font-weight:600;color:var(--brass);line-height:1}
.stat .l{font-size:.82rem;color:var(--ink-2)}

/* ---------- nav / footer ---------- */
.topbar{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.topbar .wrap{display:flex;gap:1rem;align-items:center;justify-content:space-between;padding-top:.7rem;padding-bottom:.7rem;flex-wrap:wrap}
.topbar a{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);text-decoration:none}
.topbar a:hover,.topbar a:focus-visible{color:var(--teal)}
.topbar nav{display:flex;gap:1.1rem;flex-wrap:wrap}

/* the way out: a real affordance, not another muted label */
.topbar .back{
  color:var(--teal);border:1px solid var(--rule-strong);
  padding:.34rem .75rem;white-space:nowrap;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.topbar .back:hover,.topbar .back:focus-visible{
  background:var(--teal);color:var(--panel);border-color:var(--teal);
}

/* scrollspy: the section you are reading */
.topbar nav a{position:relative;padding-bottom:.28rem;transition:color .18s ease}
.topbar nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--teal);transform:scaleX(0);transform-origin:left;
  transition:transform .22s cubic-bezier(.2,.7,.3,1);
}
.topbar nav a[aria-current=true]{color:var(--teal);font-weight:600}
.topbar nav a[aria-current=true]::after{transform:scaleX(1)}
@media (prefers-reduced-motion:reduce){
  .topbar nav a,.topbar nav a::after{transition:none}
}
.brand{font-family:var(--mono);font-size:.8rem;font-weight:600;color:var(--ink)!important;letter-spacing:.02em}

.cta{
  display:inline-block;margin-top:1.4rem;padding:.75rem 1.4rem;background:var(--teal);color:var(--panel);
  text-decoration:none;font-family:var(--mono);font-size:.82rem;letter-spacing:.05em;border:1px solid var(--teal);
}
.cta:hover,.cta:focus-visible{background:transparent;color:var(--teal)}

footer{border-top:1px solid var(--rule);padding:2.5rem 0 4rem;color:var(--ink-3);font-size:.82rem}

:focus-visible{outline:2px solid var(--teal);outline-offset:3px}