/* UX/UI refinement pass, shared by every page */
:root{
  --ink-3:#486A83;
  --focus:#064EAD;
  --shadow-soft:0 14px 36px rgba(5,70,122,.08);
  --shadow-card:0 24px 60px rgba(5,70,122,.11);
}

::selection{background:rgba(19,213,229,.28);color:var(--ink)}
html{scrollbar-color:rgba(7,110,170,.34) transparent}
body{text-rendering:optimizeLegibility}
main{overflow:clip}
a{text-underline-offset:.18em;text-decoration-thickness:.08em}
:focus-visible{outline:3px solid var(--focus)!important;outline-offset:3px!important}
.reveal{opacity:1;transform:none}
.js .reveal:not(.in){opacity:0;transform:translateY(16px)}

/* Navigation: clearer hierarchy, active page, reading progress */
.nav{transition:box-shadow .25s var(--ease),background-color .25s var(--ease)}
.nav.is-scrolled{background:rgba(247,253,255,.9);box-shadow:0 12px 34px rgba(5,69,121,.1)}
.nav .wrap{position:relative}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:clamp(18px,3vw,40px)}
.nav-links a{padding:11px 13px;border-radius:999px;color:var(--ink-2);font-size:14px;font-weight:700;text-decoration:none;transition:background .2s var(--ease),color .2s var(--ease)}
.nav-links a:hover{background:rgba(255,255,255,.76);color:var(--ink)}
.vx-read-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;pointer-events:none}
.vx-read-progress i{display:block;width:100%;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan),var(--lilac));transform:scaleX(0);transform-origin:left center;will-change:transform}
.vx-menu-btn{min-width:46px;min-height:46px}
.vx-panel{max-height:100dvh;overflow-y:auto;overscroll-behavior:contain}
.vx-panel a.vx-mcard{position:relative;min-height:132px}
.vx-panel a.vx-mcard[aria-current="page"]{background:linear-gradient(145deg,#fff,rgba(213,244,255,.94));border-color:rgba(8,141,216,.45);box-shadow:0 18px 44px rgba(5,88,145,.12)}
.vx-panel a.vx-mcard[aria-current="page"]::after{content:"Current";position:absolute;right:14px;top:14px;padding:4px 8px;border-radius:999px;background:var(--accent-soft);color:var(--accent-ink);font-size:12px;font-weight:800;letter-spacing:.04em}
.vx-menu-open{overflow:hidden}

/* Type and controls */
.btn{min-height:48px}
.btn:disabled{cursor:wait;opacity:.72;transform:none!important}
.btn-secondary{background:rgba(255,255,255,.72);border:1px solid rgba(8,104,165,.18);color:var(--accent-ink);box-shadow:var(--shadow-soft)}
.btn-secondary:hover{background:#fff;border-color:rgba(8,104,165,.34)}
.vx-kick,.vx-turn-k,.vx-sub-hero .vx-kicker,.vx-next .k,.vx-big .k,
.vx-mx .axis,.vx-mx .c .r,.vx-mx .side,.vx-tr.vx-th span,.vx-badge,
.vx-panel a.vx-mcard .k,.vx-house .vx-blk .k,.vx-doors .k{font-size:12px!important}

/* Marketing narrative */
.hero .vx-kick{margin:0 0 18px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-note{margin:14px 0 0;color:var(--ink-3);font-size:14px;font-weight:650;letter-spacing:.01em}
.hero-visual{position:relative;min-width:0}
.hero-visual .scene{width:100%}
.hero .lede,.jhead .lede{line-height:1.62}
.hero .scene,.jsticky .scene,.chap .scene{overflow:hidden}
.jgrid{gap:clamp(48px,7vw,104px)}
.jstage{justify-items:center}
.jsticky .scene{width:min(100%,calc((100svh - 132px) * .8));max-width:520px}
.chap .k{display:flex;align-items:center;gap:10px}
.chap .k::before{content:"";width:8px;height:8px;border-radius:50%;background:rgba(7,141,216,.25);box-shadow:0 0 0 5px rgba(19,213,229,.06);transition:background .3s var(--ease),box-shadow .3s var(--ease)}
.chap.is-active .k::before{background:var(--cyan);box-shadow:0 0 0 5px rgba(19,213,229,.14)}
.chap .stake{line-height:1.48}
.leave li{font-size:14px;line-height:1.35}
.vx-path-labels li{font-size:12px!important}

/* Editorial subpages */
.vx-sub-hero{padding-top:clamp(82px,9vw,118px)}
.vx-sub-hero .wrap{position:relative}
.vx-sub-hero h1{max-width:17ch;line-height:1.01}
.vx-sub-hero p.lede{line-height:1.62}
.vx-body > .wrap > p{font-size:17px;line-height:1.68}
.vx-body h2{margin-top:clamp(52px,7vw,76px);margin-bottom:18px;font-size:clamp(26px,3vw,36px)}
.vx-body h2[id]{scroll-margin-top:104px}
.vx-card,.vx-stats div,.vx-ms div,.vx-mx .c,.vx-books2 figure{border-radius:26px}
.vx-card{padding:clamp(22px,3vw,32px)}
.vx-card h3{font-size:21px;line-height:1.25}
.vx-card p{font-size:16px;line-height:1.58}
.vx-note-box{position:relative;padding-left:clamp(24px,3.2vw,34px);font-size:15px;line-height:1.58;border-left:4px solid var(--coral)}
.vx-two + .vx-note-box{margin-top:30px}
.vx-two{gap:16px}
.vx-two > *{height:100%}
.vx-stats{gap:14px}
.vx-stats div{padding:22px}
.vx-stats span{font-size:14px;line-height:1.45}
.vx-faces{gap:20px 16px}
.vx-faces figure{transition:transform .28s var(--ease)}
.vx-faces figcaption{padding-top:12px}
.vx-faces b{font-size:16px;line-height:1.3}
.vx-faces span{font-size:13px;line-height:1.45;margin-top:4px}
.vx-books2 figure{padding:clamp(22px,3vw,30px)}
.vx-books2 img{aspect-ratio:4/5;object-fit:contain}
.vx-tbl{border-radius:26px;box-shadow:var(--shadow-soft)}
.vx-tr span{font-size:16px;line-height:1.45;padding-block:16px}
.vx-ms{gap:14px}
.vx-ms div{padding:22px;font-size:16px;line-height:1.5}
.vx-ms b{font-size:18px}
.vx-mx .cells{gap:14px}
.vx-mx .c{padding:24px;min-height:150px}
.vx-mx .c p{font-size:14px;line-height:1.5}
.vx-next{padding-top:clamp(28px,4vw,42px);border-top:1px solid var(--line);gap:14px}
.vx-next a{position:relative;padding:22px 50px 22px 22px}
.vx-next a::after{content:"→";position:absolute;right:22px;top:50%;transform:translateY(-50%);color:var(--accent);font-size:22px;transition:transform .25s var(--ease)}
.vx-next a:hover::after{transform:translate(4px,-50%)}
.join form.big{max-width:520px;margin-inline:auto}

/* Modal popup for "Start free" */
.vx-modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:20px}
.vx-modal[hidden]{display:none}
.vx-modal-backdrop{position:absolute;inset:0;background:rgba(7,40,80,.45);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.vx-modal-card{position:relative;z-index:1;max-width:520px;width:100%;padding:clamp(28px,5vw,52px);border-radius:44px;background:linear-gradient(145deg,rgba(255,255,255,.82),rgba(230,247,255,.66));border:1px solid rgba(255,255,255,.94);box-shadow:0 36px 90px rgba(7,86,144,.13);text-align:center;animation:vxModalIn .35s var(--ease) both}
.vx-modal-card h2{font-size:clamp(28px,5vw,44px)}
.vx-modal-card .lede{margin:14px auto 0;text-align:center}
.vx-modal-card form.big{margin-top:26px;text-align:left}
.vx-modal-close{position:absolute;top:16px;right:18px;width:38px;height:38px;border:0;border-radius:999px;background:rgba(255,255,255,.7);color:var(--ink);font-size:24px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}
.vx-modal-close:hover{background:rgba(255,255,255,.95)}
@keyframes vxModalIn{from{opacity:0;transform:translateY(20px) scale(.97)}to{opacity:1;transform:none}}
@media(max-width:600px){.vx-modal{padding:16px}.vx-modal-card{padding:28px 20px;border-radius:32px}}
.faq-shell{max-width:1060px;margin:clamp(70px,9vw,112px) auto 0}
.faq-head{max-width:720px;margin:0 auto 30px;text-align:center}
.faq-head h2{margin:10px 0 12px;font-size:clamp(30px,4vw,48px)}
.faq-head p{margin:0 auto;max-width:62ch;color:var(--ink-2);font-size:17px;line-height:1.6}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}
.faq-grid .faq{margin:0;max-width:none}
.faq details{transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease)}
.faq details:hover{border-color:rgba(8,141,216,.25)}
.faq details[open]{background:rgba(255,255,255,.92);border-color:rgba(8,141,216,.3);box-shadow:0 16px 38px rgba(5,78,130,.08)}
.faq details p{font-size:16px;line-height:1.6}

/* Footer: quieter, more useful */
footer{padding:34px 0 42px;background:rgba(247,252,255,.72)}
footer .wrap{align-items:flex-start}
footer ul{gap:10px 22px}
footer a[aria-current="page"]{color:var(--ink);font-weight:750;text-decoration:underline;text-decoration-color:var(--cyan)}

@media (hover:hover){
  .vx-faces figure:hover{transform:translateY(-4px)}
  .vx-card:hover,.vx-stats div:hover,.vx-ms div:hover{border-color:rgba(8,141,216,.24);box-shadow:var(--shadow-card)}
}

@media(max-width:980px){
  .nav-links{display:none}
}

@media(max-width:760px){
  .nav .wrap{gap:10px}
  .nav .btn-sm{padding-inline:15px}
  .vx-panel a.vx-mcard{min-height:0}
  .hero h1{line-height:1}
  .hero-visual{margin-top:0}
  .jgrid{margin-top:36px}
  .chap{padding:38px 0}
  .chap .scene{border-radius:28px}
  .vx-sub-hero{padding:72px 0 42px}
  .vx-sub-hero h1{font-size:clamp(36px,11vw,54px)}
  .vx-body h2{margin-top:50px}
  .vx-card,.vx-stats div,.vx-ms div,.vx-mx .c,.vx-books2 figure,.vx-tbl{border-radius:22px}
  .vx-next{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .faq-shell{margin-top:70px}
}

@media(max-width:640px){
  .vx-tbl .vx-tr{display:block;padding:14px 18px;border-top:1px solid var(--line)}
  .vx-tbl .vx-tr:first-child{display:none}
  .vx-tbl .vx-tr span,
  .vx-tbl .vx-tr span:first-child,
  .vx-tbl .vx-tr span:last-child{display:block;position:static;border:0;padding:0;background:transparent}
  .vx-tbl .vx-tr span:last-child{margin-top:8px}
  .vx-tbl .vx-tr:not(.vx-th) span::before{content:"";display:block;position:static;width:auto;height:auto;
    border-radius:0;background:none;color:var(--ink-3);font-size:10.5px;font-weight:800;letter-spacing:.1em;
    text-transform:uppercase;margin:0 0 2px}
  .vx-tbl .vx-tr:not(.vx-th) span:first-child::before{content:"Traditional AI"}
  .vx-tbl .vx-tr:not(.vx-th) span:last-child::before{content:"Vocating";color:var(--accent-ink)}
}


@media(max-width:480px){
  .brand img{height:22px}
  .vx-menu-btn{width:44px;height:44px;border-radius:14px}
  .vx-stats{grid-template-columns:1fr}
  .vx-two{grid-template-columns:1fr}
  .vx-faces{grid-template-columns:1fr 1fr}
  .hero-actions{display:grid;grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  footer .wrap{display:block}
  footer ul{margin-top:18px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}
  .js .reveal{opacity:1!important;transform:none!important}
}

/* ===== Logo walls ===== */
.vx-logos{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:12px;padding:0;margin:18px 0 26px}
.vx-logos li{display:grid;place-items:center;background:#fff;border:1px solid rgba(8,137,216,.14);border-radius:14px;padding:16px 14px;min-height:96px;box-shadow:0 1px 3px rgba(9,40,60,.06)}
.vx-logos img{max-width:100%;max-height:58px;width:auto;height:auto;object-fit:contain;opacity:1;filter:none;transition:transform .25s ease}
.vx-logos li:hover img{transform:scale(1.04)}
.vx-logos.sm{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}
.vx-logos.sm li{min-height:82px;padding:14px 12px}
.vx-logos.sm img{max-height:46px}
.vx-logos-cap{font-size:13.5px;opacity:.62;margin:-14px 0 26px}
@media (max-width:760px){
  .vx-logos{grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:9px}
  .vx-logos li{min-height:78px;padding:12px 10px;border-radius:12px}
  .vx-logos img{max-height:44px}
  .vx-logos.sm{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}
  .vx-logos.sm li{min-height:70px}
  .vx-logos.sm img{max-height:38px}
}


/* ---------- Blog ---------- */
.vx-posts{display:grid;gap:16px;margin:8px 0 34px}
.vx-post{display:block;padding:22px 24px;border:1px solid rgba(8,137,216,.16);border-radius:18px;
  background:#fff;box-shadow:0 10px 30px rgba(7,75,130,.06);text-decoration:none;color:inherit;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.vx-post:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(7,75,130,.12);border-color:rgba(8,137,216,.34)}
.vx-post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:11.5px;font-weight:800;
  letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3)}
.vx-post-tag{display:inline-block;padding:4px 10px;border-radius:999px;background:rgba(8,137,216,.10);color:#0889D8}
.vx-post-title{display:block;margin:12px 0 8px;font-size:22px;line-height:1.25;font-weight:800;color:var(--ink-1)}
.vx-post-desc{display:block;font-size:15.5px;line-height:1.6;color:var(--ink-2)}
.vx-post-link{display:inline-block;margin-top:14px;font-size:14px;font-weight:800;color:#0889D8}
.vx-post-link::after{content:" \2192"}
.vx-body .vx-keys{list-style:none;padding:20px 22px;margin:22px 0;display:grid;gap:12px;
  border:1px solid rgba(8,137,216,.16);border-radius:18px;background:rgba(8,137,216,.04)}
.vx-body .vx-keys li{position:relative;padding-left:26px;font-size:15.5px;line-height:1.6;color:var(--ink-2)}
.vx-body .vx-keys li::before{content:"";position:absolute;left:6px;top:.62em;width:8px;height:8px;
  border-radius:50%;background:#17D6E5;box-shadow:0 0 0 3px rgba(23,214,229,.22)}
.vx-quote{margin:28px 0;padding:22px 24px;border-left:3px solid #17D6E5;border-radius:0 18px 18px 0;
  background:rgba(8,137,216,.05)}
.vx-quote p{margin:0;font-size:18px;line-height:1.55;font-weight:650;color:var(--ink-1)}
.vx-quote footer{margin-top:12px;font-size:13.5px;font-weight:800;color:#0889D8}
@media(max-width:640px){
  .vx-post{padding:18px}
  .vx-post-title{font-size:19px}
  .vx-quote{padding:18px;font-size:16px}
  .vx-quote p{font-size:16.5px}
}