:root{
  --bg:#f7f5f0;
  --ink:#1d1c1a;
  --soft:#5d5953;
  --line:#e4e0d8;
  --card:#fffdf9;
  --accent:#2f6f5e;
  --accent-soft:#e3efe9;
  --warn:#c2683a;
  --warn-soft:#f7e7da;
  --bad:#b23b3b;
  --bad-soft:#f6e0e0;
  --good:#2f6f5e;
  --shadow:0 1px 2px rgba(0,0,0,.05),0 8px 24px -16px rgba(0,0,0,.25);
  --sans-en:"Source Sans 3",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --sans-he:"Assistant",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans-en);
  font-size:18px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
body.lang-he{font-family:var(--sans-he);direction:rtl;font-size:19px;line-height:1.65}

/* ---------- language toggling ---------- */
.lang-he [lang="en"]{display:none}
.lang-en [lang="he"]{display:none}
body.lang-en{direction:ltr}

.wrap{max-width:720px;margin:0 auto;padding:0 22px}

/* ---------- top bar (switcher pinned right, title centered) ---------- */
.topbar{
  position:sticky;top:0;z-index:20;
  background:rgba(247,245,240,.88);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{position:relative;display:flex;align-items:center;justify-content:center;height:54px}
.brand{font-weight:700;font-size:15px;letter-spacing:.2px;color:var(--soft);text-align:center}
.langswitch{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  display:flex;gap:4px;background:var(--line);padding:3px;border-radius:999px;
}
.langswitch button{
  font-family:var(--sans-en);font-size:13px;font-weight:600;
  border:0;background:transparent;color:var(--soft);
  padding:5px 12px;border-radius:999px;cursor:pointer;line-height:1;
}
.langswitch button.active{background:var(--card);color:var(--ink);box-shadow:var(--shadow)}

/* ---------- hero ---------- */
.hero{padding:50px 0 12px}
h1{font-size:2.1rem;line-height:1.15;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
.lede{font-size:1.12rem;color:var(--soft);margin:0}

/* ---------- essay ---------- */
.essay{padding:22px 0}
.essay h2,.card h2{font-size:1.42rem;margin:1.3em 0 .5em;line-height:1.2;font-weight:700}
.essay p{margin:0 0 1em}
.essay em{font-style:italic}
ul.plain{margin:0 0 1em;padding-inline-start:1.1em}
ul.plain li{margin:0 0 .55em}
.takeaway{border-top:1px solid var(--line);margin-top:16px}
a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}

/* ---------- cards ---------- */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  padding:24px 22px 28px;
  margin:28px 0;
  box-shadow:var(--shadow);
}
.card>h2{margin-top:0}
.card>p:last-child{margin-bottom:0}
.card-sub{color:var(--soft);font-size:1rem;margin:.2em 0 1.1em}
h3{font-size:1.16rem;margin:1.2em 0 .35em;font-weight:600}

.btn{
  font-family:inherit;font-weight:600;font-size:15px;
  border:0;background:var(--accent);color:#fff;
  padding:11px 22px;border-radius:999px;cursor:pointer;line-height:1;transition:.15s;
}
.btn:hover{filter:brightness(1.07)}
.btn:active{transform:translateY(1px)}

/* ---------- "what works" interactive ---------- */
.ctrl-row{display:flex;gap:16px;flex-wrap:wrap}
.ctrl{flex:1 1 220px}
.ctrl-title{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;margin-bottom:9px}
.ctrl-title .t-ico{font-size:20px}
.capabilities{list-style:none;padding:0;margin:20px 0 0;font-size:15px}
.capabilities li{display:flex;align-items:flex-start;gap:9px;padding:9px 0;border-top:1px dashed var(--line)}
.capabilities li:first-child{border-top:0}
.capabilities .cap-ico{flex:0 0 auto;font-size:16px;line-height:1.45;font-weight:700}
.cap-yes{color:var(--good)}
.cap-no{color:var(--bad)}
.cap-lim{color:var(--warn)}

/* ---------- pills (shared) ---------- */
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  font-family:inherit;font-size:14px;font-weight:600;
  border:1.5px solid var(--line);background:var(--bg);color:var(--ink);
  padding:9px 14px;border-radius:999px;cursor:pointer;line-height:1.1;transition:.15s;
}
.pill:hover{border-color:var(--accent)}
.pill.sel{background:var(--accent);border-color:var(--accent);color:#fff}

/* ---------- simulator ---------- */
.sim-controls{display:flex;flex-direction:column;gap:16px;margin-bottom:18px}
.picker-title{display:block;font-family:var(--sans-en);font-weight:700;font-size:12px;
  text-transform:uppercase;letter-spacing:.06em;color:var(--soft);margin-bottom:8px}
body.lang-he .picker-title{font-family:var(--sans-he);letter-spacing:0}

.stage{margin:6px 0 4px}
.diagram{
  display:flex;align-items:flex-start;justify-content:center;flex-wrap:wrap;gap:0;
  background:var(--bg);border:1px solid var(--line);border-radius:14px;
  padding:22px 10px;min-height:120px;
}
.node{display:flex;flex-direction:column;align-items:center;gap:6px;
  flex:0 0 auto;width:84px;text-align:center;opacity:.25;transition:.3s}
.node.lit{opacity:1}
.node.ping{animation:ping .5s ease}
@keyframes ping{0%{transform:scale(1)}40%{transform:scale(1.22)}100%{transform:scale(1)}}
.node .n-ico{font-size:30px;line-height:1}
.node .n-cap{font-size:11.5px;font-weight:600;color:var(--soft);line-height:1.2}
.link{flex:0 0 auto;align-self:flex-start;margin-top:18px;width:26px;height:3px;border-radius:3px;
  background:var(--line);position:relative;opacity:.3;transition:.3s}
.link.lit{opacity:1;background:var(--accent)}
.link.lit::after{content:"";position:absolute;inset:0;border-radius:3px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.9),transparent);
  animation:flow 1.1s linear infinite}
body.lang-he .link.lit::after{animation-direction:reverse}
@keyframes flow{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.link.broken{opacity:1;background:transparent}
.link.broken::before{content:"✕";position:absolute;top:-11px;left:50%;transform:translateX(-50%);
  color:var(--bad);font-weight:700;font-size:18px;font-family:var(--sans-en)}

.verdict{font-weight:600;font-size:16px;
  display:flex;align-items:center;gap:9px;padding:14px 16px;border-radius:12px;margin-top:14px}
.verdict.works{background:var(--accent-soft);color:var(--good)}
.verdict.risky{background:var(--warn-soft);color:var(--warn)}
.verdict.fails{background:var(--bad-soft);color:var(--bad)}
.verdict .v-ico{font-size:20px}

.sim-readout{margin-top:16px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ro{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:13px 15px}
.ro.full{grid-column:1/-1}
.ro .ro-label{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:700;
  text-transform:uppercase;letter-spacing:.05em;color:var(--soft);margin-bottom:5px}
body.lang-he .ro .ro-label{letter-spacing:0}
.ro .ro-val{font-size:15px;line-height:1.45}

/* ---------- abroad diagram ---------- */
.abroad-diagram{
  display:flex;align-items:stretch;justify-content:center;flex-wrap:nowrap;gap:0;
  background:var(--bg);border:1px solid var(--line);border-radius:14px;
  padding:24px 8px;overflow-x:auto;
}
.ab-node{display:flex;flex-direction:column;align-items:center;gap:7px;
  flex:0 0 auto;width:118px;text-align:center}
.ab-node .ab-ico{font-size:38px;line-height:1}
.ab-node .ab-cap{font-size:12.5px;font-weight:600;line-height:1.3}
.ab-node .ab-sub{font-size:11px;color:var(--soft);line-height:1.25}
.ab-node.ping .ab-ico{animation:ping .55s ease}
.ab-link{flex:0 0 auto;align-self:flex-start;margin-top:26px;min-width:30px;flex:1 1 30px;
  height:3px;border-radius:3px;background:var(--accent);position:relative;opacity:1}
.ab-link.active::after{content:"";position:absolute;inset:0;border-radius:3px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.95),transparent);
  animation:flow 1s linear infinite}
body.lang-he .ab-link.active::after{animation-direction:reverse}
.abroad-actions{text-align:center;margin:16px 0 4px}

/* ---------- stories ---------- */
.stories .story{padding:16px 0;border-top:1px solid var(--line)}
.stories .story:first-of-type{border-top:0;padding-top:4px}
.stories h3{margin-top:0}
.stories p{margin:0;font-size:1rem}

/* ---------- failures ---------- */
.fgrid{display:flex;flex-direction:column;gap:10px}
.fitem{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--bg)}
.fitem summary{font-weight:600;font-size:15.5px;cursor:pointer;
  padding:14px 16px;list-style:none;display:flex;gap:10px;align-items:center}
.fitem summary::-webkit-details-marker{display:none}
.fitem summary .f-ico{font-size:18px}
.fitem summary .chev{margin-inline-start:auto;color:var(--soft);transition:.2s}
.fitem[open] summary .chev{transform:rotate(90deg)}
body.lang-he .fitem[open] summary .chev{transform:rotate(-90deg)}
.fitem .f-body{padding:0 16px 16px;font-size:14.5px;color:var(--soft);line-height:1.55}
.fitem .f-body strong{color:var(--ink)}

/* ---------- quiz ---------- */
.quiz .q{padding:16px 0;border-top:1px solid var(--line)}
.quiz .q:first-of-type{border-top:0;padding-top:2px}
.quiz .q-text{font-weight:600;font-size:16px;margin-bottom:12px}
.quiz .q-num{color:var(--accent);font-weight:700;margin-inline-end:6px}
.quiz .opts{display:flex;flex-direction:column;gap:8px}
.quiz .opt{
  font-family:inherit;font-size:15px;text-align:start;
  border:1.5px solid var(--line);background:var(--bg);color:var(--ink);
  padding:11px 14px;border-radius:11px;cursor:pointer;transition:.15s;line-height:1.35;
}
.quiz .opt:hover:not(:disabled){border-color:var(--accent)}
.quiz .opt:disabled{cursor:default}
.quiz .opt.correct{background:var(--accent-soft);border-color:var(--good);color:var(--good);font-weight:600}
.quiz .opt.wrong{background:var(--bad-soft);border-color:var(--bad);color:var(--bad)}
.quiz .explain{margin-top:10px;font-size:14px;color:var(--soft);line-height:1.5;
  background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 13px}
.quiz .explain strong{color:var(--ink)}
.quiz-score{margin-top:18px;font-weight:700;font-size:17px;text-align:center;
  color:var(--accent);min-height:1.2em}

/* ---------- footer ---------- */
.foot{font-size:13.5px;color:var(--soft);
  text-align:center;padding:34px 0 60px;border-top:1px solid var(--line);margin-top:30px}

/* ---------- mobile ---------- */
@media (max-width:560px){
  body{font-size:17px}
  body.lang-he{font-size:18px}
  h1{font-size:1.65rem}
  .essay h2,.card h2{font-size:1.28rem}
  .hero{padding:34px 0 8px}
  .wrap{padding:0 16px}
  .card{padding:20px 15px 24px;border-radius:15px}
  .langswitch{right:16px}
  .brand{font-size:12.5px;max-width:48%}
  .ctrl-row{flex-direction:column;gap:18px}
  .node{width:64px}
  .node .n-ico{font-size:25px}
  .node .n-cap{font-size:10.5px}
  .link{width:14px;margin-top:14px}
  .ab-node{width:92px}
  .ab-node .ab-ico{font-size:30px}
  .ab-node .ab-cap{font-size:11px}
  .ab-link{margin-top:21px;min-width:14px}
  .sim-readout{grid-template-columns:1fr}
}
@media (max-width:360px){
  .node{width:54px}
  .link{width:9px}
  .ab-node{width:80px}
}