:root{
  --bg:#0e1319;--bg2:#15212c;--panel:#14202b;--panel2:#1b2b38;
  --ink:#f0e8dc;--muted:#aeb8bf;--line:rgba(94,144,172,.18);
  --cyan:#6aaac8;--teal:#52748e;--violet:#5e90ac;--pink:#c88f60;
  --amber:#e7bd78;--danger:#c9786d;--safe:#6f9e82;--maxw:900px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans",Arial,sans-serif;
  background:radial-gradient(1200px 700px at 70% -10%,#284c67 0%,transparent 58%),
             radial-gradient(1000px 600px at 0% 20%,#47372d 0%,transparent 54%),var(--bg);
  color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}

/* Header */
header{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;align-items:center;justify-content:space-between;
  padding:14px clamp(16px,4vw,40px);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  background:linear-gradient(180deg,rgba(14,19,25,.86),rgba(14,19,25,.35));border-bottom:1px solid var(--line);}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand .dot{width:34px;height:34px;border-radius:50%;
  background:conic-gradient(from 0deg,var(--cyan),var(--amber),var(--violet),var(--cyan));
  box-shadow:0 0 18px rgba(231,189,120,.42);animation:spin 8s linear infinite;flex:none;position:relative;}
.brand .dot::after{content:"";position:absolute;inset:5px;border-radius:50%;background:var(--bg)}
@keyframes spin{to{transform:rotate(360deg)}}
.brand b{font-size:clamp(15px,2.4vw,19px);letter-spacing:.3px;white-space:nowrap}
.brand small{display:block;color:var(--muted);font-size:15px;font-weight:400;letter-spacing:.5px}
.menu-btn{display:inline-flex;align-items:center;gap:10px;
  background:linear-gradient(135deg,rgba(106,170,200,.16),rgba(94,144,172,.16));
  border:1px solid var(--line);color:var(--ink);padding:10px 18px;border-radius:999px;cursor:pointer;
  font-size:15px;font-weight:600;transition:.2s;}
.menu-btn:hover{border-color:var(--cyan);box-shadow:0 0 20px rgba(106,170,200,.25);transform:translateY(-1px)}
.menu-btn .bars{display:inline-flex;flex-direction:column;gap:3px}
.menu-btn .bars span{width:18px;height:2px;background:var(--cyan);border-radius:2px}

/* Overlay menu */
.overlay{position:fixed;inset:0;z-index:80;
  background:radial-gradient(800px 500px at 80% 0%,rgba(106,170,200,.12),transparent 60%),rgba(10,14,19,.96);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);visibility:hidden;pointer-events:none;opacity:0;transition:opacity .25s,visibility 0s .25s;overflow-y:auto;padding:90px clamp(16px,5vw,60px) 60px;}
.overlay.open{visibility:visible;pointer-events:auto;opacity:1;transition:opacity .25s}
.overlay-close{position:absolute;top:22px;right:clamp(16px,4vw,40px);background:none;border:1px solid var(--line);
  color:var(--ink);width:46px;height:46px;border-radius:50%;font-size:22px;cursor:pointer;transition:.2s}
.overlay-close:hover{border-color:var(--pink);color:var(--pink);transform:rotate(90deg)}
.overlay h2{font-size:15px;letter-spacing:3px;text-transform:uppercase;color:var(--muted);font-weight:600;margin:0 0 26px}
.tab-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;max-width:1000px;margin:0 auto}
.tab-link{text-align:left;background:linear-gradient(160deg,var(--panel),var(--panel2));border:1px solid var(--line);
  border-radius:16px;padding:20px 22px;cursor:pointer;color:var(--ink);transition:.2s;display:flex;gap:16px;align-items:flex-start;text-decoration:none;}
.tab-link:hover{border-color:var(--cyan);transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,0,0,.5);text-decoration:none}
.tab-link.current{border-color:var(--cyan);background:linear-gradient(160deg,#1d3444,#253f52)}
.tab-link .num{font-size:15px;font-weight:700;color:var(--bg);background:var(--cyan);border-radius:8px;
  min-width:30px;height:30px;display:grid;place-items:center;flex:none}
.tab-link .t{font-size:16.5px;font-weight:650;line-height:1.4}
.tab-link .d{display:block;color:var(--muted);font-size:15px;font-weight:400;margin-top:4px}

/* Hero — cinematic 3D brain backdrop */
.hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:120px 20px 60px;position:relative;overflow:hidden;
  background:#0e1319 url("brain-fallback.jpg") center center/cover no-repeat;}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;z-index:0}
.hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(ellipse 78% 60% at 50% 52%,rgba(10,14,19,.62),rgba(10,14,19,.28) 55%,transparent 78%),
             linear-gradient(180deg,rgba(14,19,25,.72) 0%,rgba(14,19,25,.15) 20%,transparent 55%,rgba(14,19,25,.55) 82%,var(--bg) 100%);}
.hero-content{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;max-width:820px}
.hero-eyebrow{color:var(--amber);letter-spacing:4px;text-transform:uppercase;font-size:15px;font-weight:700;margin-bottom:10px;
  text-shadow:0 1px 14px rgba(10,14,19,.9)}
.hero h1{font-size:clamp(38px,8vw,86px);line-height:1.02;margin:0;font-weight:800;letter-spacing:-1px;
  background:linear-gradient(120deg,#f0e8dc 18%,var(--cyan) 56%,var(--amber) 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 60px rgba(231,189,120,.14);}
.hero p.lead{max-width:620px;color:#d4dde2;font-size:clamp(15px,2.4vw,19px);margin:22px auto 0;
  text-shadow:0 2px 18px rgba(10,14,19,.85)}
.hero-method{max-width:680px;margin:14px auto 0;color:var(--muted);font-size:15px;line-height:1.5;letter-spacing:.25px;text-shadow:0 2px 16px rgba(10,14,19,.9)}
.hero-method strong{color:#f0e8dc}
.hero-cta{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.btn{padding:14px 26px;border-radius:999px;font-weight:650;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.2s;text-decoration:none;display:inline-block}
.btn:hover{text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--amber),var(--pink));color:#071017;box-shadow:0 10px 30px rgba(231,189,120,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(231,189,120,.46)}
.btn-ghost{background:rgba(14,19,25,.45);border-color:var(--line);color:var(--ink);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.btn-ghost:hover{border-color:var(--violet)}
.sig-label{margin-top:28px;font-size:15px;color:var(--muted);letter-spacing:1px;text-shadow:0 1px 12px rgba(10,14,19,.9)}
@keyframes dash{to{stroke-dashoffset:-1000}}
@keyframes pulseNode{0%,100%{r:3;opacity:.5}50%{r:6;opacity:1}}
@keyframes glow{0%,100%{opacity:.25}50%{opacity:.7}}
.node{animation:pulseNode 2.6s ease-in-out infinite}
.flow{stroke-dasharray:6 10;animation:dash 6s linear infinite}
.scroll-hint{margin-top:34px;color:var(--muted);font-size:15px;letter-spacing:2px;animation:glow 2.2s infinite}

/* Content pages */
main{max-width:var(--maxw);margin:0 auto;padding:110px clamp(16px,4vw,24px) 90px}
.what-is-page,.bibliography-page,.contact-page{text-align:left}
.what-is-page .pager .next,.what-is-page footer,
.bibliography-page .pager .next,.bibliography-page footer,
.contact-page .pager .next,.contact-page footer{text-align:left}
.contact-page .body>p{max-width:none;margin-left:0;margin-right:0;text-align:left}
.contact-page .contact-box{text-align:center}
.what-is-page .body>p,
.what-is-page .body>h2,
.what-is-page .body>h3,
.bibliography-page .body>p,
.bibliography-page .body>h2,
.bibliography-page .body>h3{max-width:none;margin-left:0;margin-right:0;text-align:left}
.page-head .kicker{color:var(--teal);letter-spacing:3px;text-transform:uppercase;font-size:15px;font-weight:700}
h1.title,.page-head h1{font-size:clamp(26px,5vw,42px);line-height:1.15;margin:8px 0 6px;font-weight:800;
  background:linear-gradient(100deg,#f0e8dc,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.body{background:linear-gradient(170deg,rgba(20,32,43,.72),rgba(15,25,34,.5));border:1px solid var(--line);
  border-radius:20px;padding:clamp(20px,4vw,38px);margin-top:22px;-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px)}
.body p{color:#e3e0da}
.body h2{color:#fff;font-size:22px;margin:30px 0 6px}
.body h3{color:#fff;font-size:19px;margin:26px 0 6px}
.body h4{color:var(--cyan);font-size:16px;margin:22px 0 4px;letter-spacing:.3px}
.body h3.study-title{display:flex;flex-direction:column;gap:2px;max-width:none;margin:28px 0 8px;padding:3px 0 3px 14px;border-left:3px solid var(--cyan);color:#fff;font-size:16px;line-height:normal;letter-spacing:.15px}
.body h2.item-title{color:var(--cyan);font-size:16px;line-height:normal;margin:22px 0 4px;letter-spacing:.3px}
.success-stories-page .body h2.condition-title{font-size:clamp(19px,2.4vw,23px);line-height:1.3;margin-top:36px}
.study-title small{color:var(--muted);font-size:15px;font-weight:500;letter-spacing:.25px}
.lead-in{font-size:18px;color:#f3eee5 !important}
.step,.tech{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.step:last-child,.tech:last-child{border-bottom:none}
.step .n,.tech .n{flex:none;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-weight:800;
  background:linear-gradient(135deg,rgba(106,170,200,.2),rgba(94,144,172,.2));border:1px solid var(--line);color:var(--cyan)}
.cond-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;margin-top:8px}
.circuit-causes-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.cond{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:15px;transition:border-color .25s,background-color .25s,box-shadow .25s}
.cond[id]{scroll-margin-top:96px}
.cond[id]:target{background:rgba(106,170,200,.12);border-color:rgba(106,170,200,.65);box-shadow:0 0 0 5px rgba(106,170,200,.08)}
.cond b{display:block;color:#fff;font-size:15px}
.cond span{color:var(--muted);font-size:15px}
.ref{font-size:15px;color:var(--muted)}
.body>p.conditions-evidence-note{max-width:none;width:100%;margin-left:0;margin-right:0;text-align:left;font-weight:400;font-synthesis:none}
.conditions-evidence-note *{font-weight:400!important}
.body>p.bibliography-source-note{max-width:none;width:100%;margin-left:0;margin-right:0;text-align:left}
.body>p.history-closing-note{max-width:none;width:100%;margin:22px 0 0;text-align:left}
.citation{color:var(--cyan);font-weight:700;text-decoration:none;white-space:nowrap}
.citation:hover{text-decoration:underline}
sup a{color:var(--teal);font-weight:700;font-size:15px}
.criteria{margin-top:16px}
.criteria .cat{background:var(--panel2);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin-bottom:14px}
.criteria .cat b{color:#fff;font-size:17px;font-weight:700;letter-spacing:.5px}
.criteria ul{margin:8px 0 0;padding-left:18px}
.criteria li{margin:5px 0;color:#e3e0da}
.callout{background:linear-gradient(120deg,rgba(111,158,130,.1),rgba(106,170,200,.06));
  border:1px solid rgba(111,158,130,.3);border-radius:14px;padding:16px 20px;margin:22px 0}
.callout b{color:var(--safe)}
.warn{background:linear-gradient(120deg,rgba(231,189,120,.1),rgba(201,120,109,.05));
  border:1px solid rgba(231,189,120,.3);border-radius:14px;padding:16px 20px;margin:22px 0;font-size:15px;color:#efe5d5}
.refs{margin-top:14px}
.refs li{margin:10px 0;color:var(--muted);font-size:15px;line-height:1.55;scroll-margin-top:96px;border-radius:8px;transition:background-color .25s,box-shadow .25s}
.refs li:target{background:rgba(106,170,200,.1);box-shadow:0 0 0 6px rgba(106,170,200,.1)}
.refs li a{word-break:break-word}
.people{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:18px}
.person{background:var(--panel2);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.person > b{color:#fff;font-size:16px}
.person > i{color:var(--cyan);font-style:normal;font-size:15px;display:block;margin-bottom:6px}
.person p{margin:0;font-size:15px;color:var(--muted)}
.method-term{color:#fff;font-weight:700}
.contact-box{text-align:center;background:linear-gradient(150deg,var(--panel),var(--panel2));border:1px solid var(--line);
  border-radius:20px;padding:40px 24px;margin-top:24px}
.contact-box a.mail{display:inline-block;margin-top:14px;font-size:clamp(18px,4vw,26px);font-weight:800;
  max-width:100%;padding:14px 30px;border-radius:999px;background:linear-gradient(135deg,var(--amber),var(--pink));color:#07131e;
  overflow-wrap:anywhere;word-break:break-word}
.pager{display:flex;justify-content:space-between;gap:12px;margin-top:34px;flex-wrap:wrap}
.pager a{flex:1;min-width:180px;background:var(--panel2);border:1px solid var(--line);border-radius:14px;
  padding:14px 18px;color:var(--ink);transition:.2s;text-decoration:none}
.pager a:hover{border-color:var(--cyan);text-decoration:none;transform:translateY(-2px)}
.pager span{display:block;color:var(--muted);font-size:15px}
.pager .next{text-align:right}
footer{border-top:1px solid var(--line);padding:30px 20px;text-align:center;color:var(--muted);font-size:15px}
.disclaimer{max-width:var(--maxw);margin:0 auto;font-size:15px;color:#8fa0aa;line-height:1.6}
.section-index{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;max-width:var(--maxw);margin:0 auto;padding:80px 20px 40px}
::selection{background:rgba(106,170,200,.3)}

/* ===== Living aurora + neural background ===== */
.bg-fx{position:fixed;inset:0;z-index:-2;pointer-events:none;overflow:hidden}
.bg-fx canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.5}
/* extra glow anchored near top-centre so every page (incl. text subpages) shows aurora */
.bg-fx::before{content:"";position:absolute;width:70vw;height:60vh;left:15vw;top:-20vh;
  background:radial-gradient(circle at 50% 50%,rgba(106,170,200,.6),rgba(203,163,112,.34) 45%,transparent 70%);
  filter:blur(70px);mix-blend-mode:screen;animation:auroraD2 24s ease-in-out infinite}
.bg-orb{position:absolute;border-radius:50%;filter:blur(60px);mix-blend-mode:screen;pointer-events:none}
.bg-orb.o1{width:56vw;height:74vh;left:-14vw;top:-6vh;
  background:radial-gradient(circle at 42% 42%,rgba(203,163,112,.95),rgba(143,112,84,.42) 45%,transparent 68%);
  animation:auroraD1 20s ease-in-out infinite}
.bg-orb.o2{width:54vw;height:70vh;right:-16vw;top:14vh;
  background:radial-gradient(circle at 58% 42%,rgba(94,144,172,.95),rgba(47,106,142,.42) 45%,transparent 68%);
  animation:auroraD2 26s ease-in-out infinite}
.bg-orb.o3{width:52vw;height:64vh;left:24vw;bottom:-22vh;
  background:radial-gradient(circle at 50% 50%,rgba(182,111,66,.88),rgba(123,73,52,.38) 45%,transparent 66%);
  animation:auroraD3 32s ease-in-out infinite}
@keyframes auroraD1{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(6vw,5vh) scale(1.18)}}
@keyframes auroraD2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-5vw,-4vh) scale(1.14)}}
@keyframes auroraD3{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-5vw,-6vh) scale(1.2)}}
/* content cards lift off the richer background */
.tab-link{-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px)}
@media(prefers-reduced-motion:reduce){.bg-orb{animation:none}}

/* Language switcher */
.header-right{display:flex;align-items:center;gap:14px}

/* FIT criteria — interactive checklist */
.criteria ul{padding-left:0}
.criteria li{list-style:none;position:relative;padding:10px 14px 10px 44px;margin:7px 0;border:1px solid var(--line);border-radius:10px;background:rgba(94,144,172,.07);cursor:pointer;user-select:none;-webkit-user-select:none;transition:background .15s,border-color .15s,color .15s}
.criteria li label{display:block;margin:-10px -14px -10px -44px;padding:10px 14px 10px 44px;border-radius:inherit;cursor:pointer}
.criteria .fit-check{position:absolute;left:13px;top:50%;width:20px;height:20px;transform:translateY(-50%);opacity:0}
.criteria li:focus-within{outline:3px solid rgba(106,170,200,.85);outline-offset:3px}
.criteria li::before{content:"";position:absolute;left:13px;top:50%;transform:translateY(-50%);width:20px;height:20px;box-sizing:border-box;border:2px solid var(--muted);border-radius:5px;background:rgba(14,19,25,.55);transition:.15s}
.criteria li:hover{background:rgba(106,170,200,.1);border-color:var(--cyan)}
.criteria li:hover::before{border-color:var(--cyan)}
.criteria li.checked{background:rgba(106,170,200,.15);border-color:var(--cyan);color:#fff}
.criteria li.checked::before{background:var(--cyan);border-color:var(--cyan)}
.criteria li.checked::after{content:"✓";position:absolute;left:18px;top:50%;transform:translateY(-50%);color:var(--bg);font-size:15px;font-weight:800;line-height:1}
.fit-result{margin:22px 0 4px;background:linear-gradient(120deg,rgba(106,170,200,.16),rgba(94,144,172,.14));border:1px solid var(--cyan);border-radius:14px;padding:18px 20px;text-align:center}
.fit-result .fit-score{font-size:16px}
.fit-result .num{font-size:30px;font-weight:800;color:var(--cyan);vertical-align:-2px}
.fit-msg{color:var(--muted);font-size:15px;margin-top:8px;line-height:1.5}
.fit-reset{margin-top:12px;display:inline-block;background:rgba(14,19,25,.4);border:1px solid var(--line);color:var(--ink);padding:7px 16px;border-radius:999px;cursor:pointer;font-size:15px;font-weight:600;transition:.2s}
.fit-reset:hover{border-color:var(--pink);color:var(--pink)}
.lang-switch{display:inline-flex;gap:8px;align-items:center}
.lang-switch a{display:block;width:30px;height:20px;padding:0;border:1px solid var(--line);border-radius:4px;background-size:cover;background-position:center;background-repeat:no-repeat;opacity:.5;text-decoration:none;transition:.2s;box-shadow:none}
.lang-switch a:hover{opacity:1;transform:translateY(-1px);border-color:var(--cyan)}
.lang-switch a.active{opacity:1;border-color:var(--cyan);box-shadow:0 0 0 2px rgba(106,170,200,.45)}
.lang-el{background-image:url("data:image/svg+xml;base64,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")}
.lang-en{background-image:url("data:image/svg+xml;base64,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")}

/* ===== Experience redesign ===== */
:root{
  --maxw:960px;
  --wide:1120px;
  --surface:rgba(20,32,43,.78);
  --surface-strong:rgba(16,27,38,.92);
  --radius-lg:26px;
  --shadow-lg:0 28px 90px rgba(0,0,0,.38);
}
body{font-family:"Avenir Next","SF Pro Text",Inter,"Noto Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
h1,h2,h3,h4,.brand b,.tab-link .t{font-family:"Avenir Next","SF Pro Display","Noto Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input,select{font:inherit}
:focus-visible{outline:3px solid rgba(106,170,200,.85);outline-offset:4px}
[hidden]{display:none!important}

/* Clearer hierarchy on editorial pages */
.page-head{position:relative}
.body{box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.body::before{content:"";position:absolute;inset:0 0 auto;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),var(--amber),transparent);opacity:.7}
.body>p,.body>h2,.body>h3{max-width:72ch;margin-left:auto;margin-right:auto}
.body h2{font-size:clamp(23px,3vw,29px);line-height:1.25;margin-top:42px}
.body h3{font-size:clamp(19px,2.4vw,23px);line-height:1.3;margin-top:36px}
.body h2,.body h3{scroll-margin-top:150px}
.lead-in{font-size:clamp(18px,2.2vw,20px);line-height:1.7}
.callout,.warn{box-shadow:inset 0 1px rgba(255,255,255,.035)}

/* Distinctive section-card accents */
.tab-link:nth-child(3n+1) .num{background:linear-gradient(135deg,var(--cyan),var(--teal))}
.tab-link:nth-child(3n+2) .num{background:linear-gradient(135deg,var(--violet),var(--pink))}
.tab-link:nth-child(3n) .num{background:linear-gradient(135deg,var(--amber),var(--pink))}
.tab-link:nth-child(3n+2):hover{border-color:var(--violet)}
.tab-link:nth-child(3n):hover{border-color:var(--pink)}
.tab-link .num{box-shadow:0 6px 18px rgba(106,170,200,.18)}

/* Reading progress and compact, sticky page navigation */
.reading-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:100;pointer-events:none;background:rgba(255,255,255,.04)}
.reading-progress span{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--cyan),var(--amber),var(--pink));box-shadow:0 0 14px var(--amber)}
.page-toc{position:sticky;top:80px;z-index:38;display:flex;align-items:center;gap:8px;overflow-x:auto;max-width:var(--maxw);margin:0 auto 18px;padding:10px 12px;border:1px solid var(--line);border-radius:16px;background:rgba(14,19,25,.78);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);scrollbar-width:none}
.page-toc::-webkit-scrollbar{display:none}
.page-toc strong{flex:none;color:var(--teal);font-size:15px;letter-spacing:1.5px;text-transform:uppercase;padding:0 8px}
.page-toc a{flex:none;color:var(--muted);font-size:15px;padding:7px 11px;border:1px solid transparent;border-radius:999px;white-space:nowrap}
.page-toc a:hover{color:var(--ink);border-color:var(--line);background:rgba(106,170,200,.08);text-decoration:none}

/* Meaningful inline visuals */
.circuit-mini,.history-mini,.evidence-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0 30px}
.circuit-node,.history-node,.evidence-stat{position:relative;min-height:118px;padding:18px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,rgba(27,43,56,.9),rgba(16,27,37,.74));display:flex;flex-direction:column;justify-content:center}
.circuit-node b,.history-node b,.evidence-stat b{display:block;color:#fff;font-size:17px;line-height:1.3}
.circuit-node span,.history-node span,.evidence-stat span{display:block;color:var(--muted);font-size:15px;margin-top:6px;line-height:1.45}
.circuit-node:not(:last-child)::after,.history-node:not(:last-child)::after{content:"→";position:absolute;right:-18px;top:50%;z-index:2;transform:translateY(-50%);width:24px;height:24px;border-radius:50%;display:grid;place-items:center;color:var(--cyan);background:var(--bg);border:1px solid var(--line)}
.circuit-node.danger{border-color:rgba(201,120,109,.36)}
.circuit-node.safe{border-color:rgba(111,158,130,.38)}
.evidence-stat b{font-size:clamp(23px,4vw,34px);color:var(--cyan)}
.evidence-stat:nth-child(2) b{color:var(--violet)}
.evidence-stat:nth-child(3) b{color:var(--safe)}

/* Existing steps become a real visual timeline */
.step,.tech{position:relative;padding:19px 0 22px}
.step:not(:last-child)::before,.tech:not(:last-child)::before{content:"";position:absolute;left:19px;top:57px;bottom:-2px;width:1px;background:linear-gradient(var(--cyan),rgba(94,144,172,.12))}
.step .n,.tech .n{position:relative;z-index:1;box-shadow:0 0 24px rgba(106,170,200,.16)}

/* Homepage narrative */
.home-main{max-width:none;padding:0 20px 100px}
.home-wrap{max-width:var(--wide);margin:0 auto}
.home-section{padding:92px 0 10px}
.home-section-head{max-width:720px;margin-bottom:34px}
.home-kicker{color:var(--teal);font-size:15px;font-weight:800;letter-spacing:3px;text-transform:uppercase}
.home-section h2{font-size:clamp(30px,5vw,54px);line-height:1.08;margin:10px 0 14px;letter-spacing:-1.3px}
.home-section-head p{color:var(--muted);font-size:17px;margin:0;max-width:62ch}
.route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.route-card{position:relative;min-height:270px;padding:28px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(155deg,rgba(27,43,56,.88),rgba(16,27,37,.72));overflow:hidden;transition:.25s;text-decoration:none;color:var(--ink)}
.route-card::after{content:"";position:absolute;width:150px;height:150px;border-radius:50%;right:-70px;bottom:-70px;background:radial-gradient(circle,rgba(106,170,200,.35),transparent 68%);transition:.3s}
.route-card:nth-child(2)::after{background:radial-gradient(circle,rgba(94,144,172,.4),transparent 68%)}
.route-card:nth-child(3)::after{background:radial-gradient(circle,rgba(200,143,96,.34),transparent 68%)}
.route-card:hover{transform:translateY(-7px);border-color:var(--cyan);box-shadow:0 24px 70px rgba(0,0,0,.35);text-decoration:none}
.route-card:hover::after{transform:scale(1.35)}
.route-num{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:rgba(106,170,200,.14);border:1px solid rgba(106,170,200,.3);color:var(--cyan);font-weight:800;margin-bottom:38px}
.route-card:nth-child(2) .route-num{color:var(--violet);border-color:rgba(94,144,172,.35);background:rgba(94,144,172,.12)}
.route-card:nth-child(3) .route-num{color:var(--pink);border-color:rgba(200,143,96,.34);background:rgba(200,143,96,.1)}
.route-card h3{font-size:22px;line-height:1.2;margin:0 0 9px;color:#fff}
.route-card p{color:var(--muted);font-size:15px;line-height:1.6;margin:0 0 20px}
.route-card .route-link{position:absolute;left:28px;bottom:24px;color:var(--cyan);font-weight:700;font-size:15px}
.mechanism-panel{display:grid;grid-template-columns:.78fr 1.7fr;gap:28px;align-items:center;padding:38px;border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(145deg,rgba(20,32,43,.92),rgba(14,24,33,.78));box-shadow:var(--shadow-lg)}
.mechanism-copy h2{font-size:clamp(29px,4vw,45px);margin:10px 0 12px;line-height:1.08}
.mechanism-copy p{color:var(--muted);font-size:15px}
.circuit-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:12px;align-items:center}
.flow-node{min-height:146px;border:1px solid var(--line);border-radius:18px;padding:20px;text-align:center;display:flex;flex-direction:column;justify-content:center;background:rgba(27,43,56,.72)}
.flow-node .orb{width:52px;height:52px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;font-size:20px;color:#ffd9d4;background:rgba(201,120,109,.34);border:1px solid rgba(231,151,140,.9);box-shadow:0 0 32px rgba(201,120,109,.28)}
.flow-node.learn .orb{color:#d9f2ff;background:rgba(94,144,172,.38);border-color:rgba(130,196,226,.92);box-shadow:0 0 32px rgba(94,144,172,.3)}
.flow-node.safe .orb{color:#dcf5e6;background:rgba(111,158,130,.38);border-color:rgba(145,196,165,.92);box-shadow:0 0 32px rgba(111,158,130,.3)}
.flow-node b{font-size:15px}.flow-node span{font-size:15px;color:var(--muted);margin-top:5px}
.flow-arrow{color:var(--cyan);font-size:25px}
.home-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;counter-reset:home-step}
.home-step{counter-increment:home-step;position:relative;padding:22px 18px;border:1px solid var(--line);border-radius:17px;background:rgba(27,43,56,.66);min-height:150px}
.home-step::before{content:"0" counter(home-step);display:block;color:var(--cyan);font-weight:800;font-size:15px;letter-spacing:1px;margin-bottom:28px}
.home-step b{display:block;color:#fff;line-height:1.3;font-size:15px}
.home-step span{display:block;color:var(--muted);font-size:15px;line-height:1.5;margin-top:8px}
.home-steps .home-step:nth-child(even)::before{color:var(--violet)}
.condition-cloud{display:flex;flex-wrap:wrap;gap:10px}
.condition-chip{padding:12px 17px;border:1px solid var(--line);border-radius:999px;background:rgba(27,43,56,.68);color:#e3e0da;font-size:15px}
.condition-chip:hover{text-decoration:none;background:rgba(38,58,72,.82)}
.condition-chip:nth-child(3n+1){border-color:rgba(106,170,200,.3)}
.condition-chip:nth-child(3n+2){border-color:rgba(94,144,172,.3)}
.condition-chip:nth-child(3n){border-color:rgba(200,143,96,.28)}
.home-split{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
.evidence-panel,.story-panel{padding:32px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(155deg,rgba(27,43,56,.84),rgba(16,27,37,.74))}
.evidence-big{font-size:clamp(48px,8vw,82px);line-height:1;font-weight:850;color:var(--cyan);letter-spacing:-3px}
.evidence-panel h3,.story-panel h3{font-size:24px;margin:14px 0 8px}
.evidence-panel p,.story-panel p{color:var(--muted);font-size:15px}
.story-mark{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;color:#07131e;background:linear-gradient(135deg,var(--violet),var(--pink));font-weight:900;font-size:22px;box-shadow:0 0 34px rgba(94,144,172,.28)}
.condition-detail{scroll-margin-top:96px;margin-top:32px;padding:22px 24px}
.condition-detail h2{margin-top:0}
.condition-detail p:last-child{margin-bottom:0}
.home-panel-link{display:inline-flex;margin-top:12px;font-weight:750;font-size:15px}
.home-final{margin-top:86px;padding:55px clamp(24px,6vw,70px);border:1px solid rgba(106,170,200,.3);border-radius:28px;text-align:center;background:radial-gradient(500px 240px at 50% 0,rgba(106,170,200,.17),transparent 65%),linear-gradient(145deg,rgba(20,32,43,.94),rgba(16,27,37,.8));box-shadow:var(--shadow-lg)}
.home-final h2{font-size:clamp(30px,5vw,48px);margin:0 0 12px}
.home-final p{max-width:620px;margin:0 auto 25px;color:var(--muted)}

/* Keep all landing-page text at least as large as the lead beneath the title. */
.home-page .brand b,
.home-page .brand small,
.home-page .overlay h2,
.home-page .tab-link .num,
.home-page .tab-link .d,
.home-page .hero-eyebrow,
.home-page .hero-method,
.home-page .sig-label,
.home-page .scroll-hint,
.home-page .home-kicker,
.home-page .route-card p,
.home-page .route-card .route-link,
.home-page .flow-node > span:not(.orb),
.home-page .home-step::before,
.home-page .home-step span,
.home-page .condition-chip,
.home-page .evidence-panel p,
.home-page .story-panel p,
.home-page .home-panel-link,
.home-page footer,
.home-page .disclaimer{font-size:15px}
.home-page .flow-node b,.home-page .home-step b{font-size:16px}

/* Success-story discovery */
.featured-stories{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:28px 0 34px}
.featured-story{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:rgba(27,43,56,.78)}
.featured-thumb{display:block;aspect-ratio:16/9;position:relative;overflow:hidden;background:linear-gradient(145deg,#203b4f,#382a20)}
.featured-thumb img{width:100%;height:100%;object-fit:cover;display:block;opacity:.75;transition:.3s}
.featured-story:hover .featured-thumb img{transform:scale(1.04);opacity:.9}
.featured-play{position:absolute;left:16px;bottom:14px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;color:#07131e;background:linear-gradient(135deg,var(--amber),var(--pink));box-shadow:0 8px 24px rgba(0,0,0,.3)}
.featured-copy{padding:18px}.featured-copy b{display:block;font-size:18px;color:#fff}.featured-copy i{font-style:normal;color:var(--cyan);font-size:15px}.featured-copy p{margin:10px 0 0;color:var(--muted);font-size:15px}.featured-copy>a{display:inline-block;margin-top:12px;font-size:15px;font-weight:700}
.story-tools{position:sticky;top:80px;z-index:34;margin:26px 0 32px;padding:16px;border:1px solid var(--line);border-radius:18px;background:rgba(14,19,25,.88);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}
.story-search-row{display:flex;gap:10px;align-items:center}
.story-search{flex:1;min-width:0;color:var(--ink);background:rgba(27,43,56,.78);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.story-search::placeholder{color:#8fa0aa}
.story-source{max-width:210px;color:var(--ink);background:#1b2b38;border:1px solid var(--line);border-radius:12px;padding:12px 34px 12px 12px}
.story-count{flex:none;color:var(--muted);font-size:15px}
.story-filters{display:flex;gap:8px;overflow-x:auto;margin-top:12px;padding-bottom:2px;scrollbar-width:none}
.story-filters::-webkit-scrollbar{display:none}
.story-filter{flex:none;border:1px solid var(--line);border-radius:999px;padding:8px 12px;background:rgba(27,43,56,.6);color:var(--muted);cursor:pointer;font-size:15px}
.filter-count{margin-left:3px;opacity:.72;font-variant-numeric:tabular-nums}
.story-filter:hover,.story-filter.active{border-color:var(--cyan);color:#fff;background:rgba(106,170,200,.12)}
.story-tag{display:inline-flex;margin-bottom:10px;padding:4px 8px;border-radius:999px;background:rgba(94,144,172,.12);border:1px solid rgba(94,144,172,.25);color:#aeb4ba;font-size:15px;line-height:1.2}
.success-stories-page .story-tags{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin-bottom:11px;justify-items:center}
.success-stories-page .story-tag{display:inline-flex;width:fit-content;max-width:100%;align-items:center;justify-content:center;margin:0;text-align:center}
.success-stories-page .story-tag:only-child,
.success-stories-page .story-tag:last-child:nth-child(odd){grid-column:1/-1;justify-self:center}
.success-stories-page .people .person > b{display:block;color:#e3ba7b;margin:0 0 2px}
.success-stories-page .featured-copy b{color:#e3ba7b}
.success-stories-page .person > i a,.success-stories-page .featured-copy i a{display:inline;color:inherit;font-weight:700;text-decoration:underline;text-underline-offset:3px}
.success-stories-page .story-section[hidden],.success-stories-page .person[hidden]{display:none}
.success-stories-page .condition-title{display:flex;align-items:center;gap:9px}
.success-stories-page .section-count{display:inline-grid;min-width:28px;height:28px;padding:0 8px;place-items:center;border:1px solid rgba(106,170,200,.32);border-radius:999px;color:var(--cyan);font-size:14px;font-weight:500}
.story-search:focus,.story-source:focus,.story-filter:focus-visible,.story-more:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.people .person{position:relative;transition:.2s}
.people .person:hover{transform:translateY(-3px);border-color:rgba(106,170,200,.42);box-shadow:0 16px 38px rgba(0,0,0,.22)}
.story-more{display:block;margin:28px auto 8px;padding:12px 22px;border:1px solid var(--amber);border-radius:999px;color:#07131e;background:linear-gradient(135deg,var(--amber),var(--pink));font-weight:400;font-synthesis:none;cursor:pointer}
.story-more[hidden]{display:none}
.story-empty{text-align:center;color:var(--muted);padding:28px;border:1px dashed var(--line);border-radius:16px}
.success-stories-page .body > .ref{width:100%;max-width:none;margin-left:0;margin-right:0;text-align:left}

@media(max-width:900px){
  .route-grid{grid-template-columns:1fr}
  .route-card{min-height:220px}
  .mechanism-panel,.home-split{grid-template-columns:1fr}
  .home-steps{grid-template-columns:repeat(2,1fr)}
  .featured-stories{grid-template-columns:1fr}
}

@media(max-width:640px){
  header{padding:10px 12px;min-height:64px;gap:8px;display:grid;grid-template-columns:minmax(0,1fr) auto}
  .brand{gap:9px;min-width:0;overflow:hidden}
  .brand>span:last-child{min-width:0;overflow:hidden}
  .brand .dot{width:28px;height:28px}
  .brand .dot::after{inset:4px}
  .brand b{display:block;font-size:15px;letter-spacing:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .brand small{display:none}
  .header-right{gap:7px;flex:none;justify-self:end}
  .lang-switch{gap:5px}
  .lang-switch a{width:27px;height:19px}
  .lang-switch a.active{display:block}
  .menu-btn{position:relative;width:42px;height:42px;padding:0;gap:0;display:block;font-size:0;line-height:0}
  .menu-btn .bars{position:absolute;left:50%;top:50%;width:20px;height:14px;display:flex;flex-direction:column;align-items:center;justify-content:space-between;gap:0;margin:0;transform:translate(-50%,-50%)}
  .menu-btn .bars span{display:block;width:19px;height:2px;margin:0;padding:0;flex:none}
  .hero{padding:96px 18px 48px;min-height:100svh}
  .hero-video{object-position:center center}
  .hero h1{font-size:clamp(37px,13vw,54px)}
  .hero p.lead{font-size:15px;line-height:1.62;margin-top:18px}
  .hero-method{font-size:15px;margin-top:11px;padding:0 4px}
  .hero-cta{width:100%;margin-top:25px;gap:10px}
  .hero-cta .btn{width:100%;padding:13px 18px}
  .sig-label{margin-top:22px;font-size:15px}
  .scroll-hint{margin-top:24px}
  main{padding-top:92px}
  .home-main{padding:0 14px 70px}
  .home-section{padding-top:68px}
  .home-section h2{font-size:34px}
  .home-section-head p{font-size:15px}
  .route-card{padding:23px;min-height:215px}
  .route-card .route-link{left:23px}
  .mechanism-panel{padding:24px 18px}
  .circuit-flow{grid-template-columns:1fr;gap:8px}
  .flow-node{min-height:118px}
  .flow-arrow{transform:rotate(90deg);justify-self:center}
  .home-steps{grid-template-columns:1fr}
  .home-step{min-height:0}
  .home-final{margin-top:65px;padding:42px 20px}
  .circuit-causes-grid{grid-template-columns:1fr}
  .circuit-mini,.history-mini,.evidence-summary{grid-template-columns:1fr}
  .circuit-node:not(:last-child)::after,.history-node:not(:last-child)::after{right:50%;top:auto;bottom:-19px;transform:translateX(50%) rotate(90deg)}
  .page-toc{top:64px;border-radius:0;margin-left:-16px;margin-right:-16px;padding-left:16px}
  .story-tools{top:64px;margin-left:-4px;margin-right:-4px}
  .story-search-row{align-items:stretch;flex-direction:column}
  .story-source{max-width:none;width:100%}
  .story-count{padding-left:3px}
  .body{border-radius:18px}
  .people{grid-template-columns:1fr}
  .contact-box{padding:32px 16px}
  .contact-box a.mail{display:block;width:100%;padding:12px 8px;font-size:15px;line-height:1.35}
}

@media(max-width:370px){
  .brand b{font-size:15px}
  .brand .dot{width:25px;height:25px}
  .header-right{gap:4px}
  .menu-btn{width:39px;height:39px}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .hero-video{filter:none}
}

/* History page: no supporting text falls below the 15px readability floor. */
.history-page{font-size:15px}
.history-page .brand b,
.history-page .brand small,
.history-page .overlay h2,
.history-page .tab-link .num,
.history-page .tab-link .d,
.history-page .page-head .kicker,
.history-page .history-node span,
.history-page .person > i,
.history-page .person p,
.history-page .pager span,
.history-page footer,
.history-page .disclaimer{font-size:15px}
.history-page .people{position:relative;margin-top:36px;padding-top:30px}
.history-page .person > b{color:#e3ba7b}
.history-page .people::before{content:"";position:absolute;top:0;left:6%;right:6%;height:1px;background:linear-gradient(90deg,transparent,rgba(106,170,200,.78),rgba(94,144,172,.78),transparent)}
.history-page .people::after{content:"";position:absolute;top:-4px;left:50%;width:7px;height:7px;border:1px solid rgba(94,144,172,.85);background:var(--panel2);transform:translateX(-50%) rotate(45deg)}