/* ===========================================================
   SHUN-YA — shared design system
   =========================================================== */
:root{
  --cream:#FAF6EE; --cream-2:#F5EFE3; --card:#FFFFFF;
  --ink:#18140F; --ink-2:#6B5E52; --ink-muted:#B8AC9E;
  --amber:#BF6B15; --amber-hi:#D47A20; --kesari:#F37021;
  --amber-dim:rgba(191,107,21,.08); --amber-b:rgba(191,107,21,.22);
  --steel:#2C3340;
  --border:rgba(26,22,20,.09); --border-2:rgba(26,22,20,.15);
  --shadow:0 1px 3px rgba(26,22,20,.06),0 4px 18px rgba(26,22,20,.05);
  --shadow-md:0 2px 10px rgba(26,22,20,.08),0 14px 44px rgba(26,22,20,.07);
  --fd:'Cormorant Garamond',Georgia,serif;
  --fu:'Outfit',system-ui,-apple-system,sans-serif;
  --fm:'JetBrains Mono',ui-monospace,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:66px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;scroll-behavior:smooth}
body{background:var(--cream);color:var(--ink);font-family:var(--fu);font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
::selection{background:var(--amber);color:#fff}
::-webkit-scrollbar{width:9px}::-webkit-scrollbar-track{background:var(--cream-2)}
::-webkit-scrollbar-thumb{background:var(--amber);border-radius:6px}
a{color:inherit;text-decoration:none}
button{cursor:pointer;border:none;background:none;font-family:inherit;color:inherit}
img{max-width:100%;display:block}

/* ---------- type ---------- */
.t-hero{font-family:var(--fd);font-weight:600;font-size:clamp(2.9rem,7.6vw,6.4rem);line-height:.99;letter-spacing:-.028em}
.t-h2{font-family:var(--fd);font-weight:600;font-size:clamp(2.05rem,4.6vw,3.6rem);line-height:1.05;letter-spacing:-.018em}
.t-h3{font-family:var(--fd);font-weight:600;font-size:clamp(1.35rem,2.3vw,1.95rem);line-height:1.18}
.t-lead{font-family:var(--fd);font-style:italic;font-weight:400;font-size:clamp(1.05rem,1.9vw,1.5rem);line-height:1.55;color:var(--ink-2)}
.t-label{font-family:var(--fu);font-size:.62rem;font-weight:600;letter-spacing:.26em;text-transform:uppercase;color:var(--amber)}
.t-mono{font-family:var(--fm);font-size:.7rem;letter-spacing:.02em;color:var(--ink-2)}
.t-body{font-size:clamp(.9rem,1.05vw,1rem);color:var(--ink-2);line-height:1.74}

/* ---------- layout ---------- */
.wrap{width:min(1180px,92vw);margin-inline:auto}
.sec{padding:clamp(4.5rem,10vh,8rem) 0;position:relative}
.eyebrow{display:flex;align-items:center;gap:.7rem;margin-bottom:1.3rem}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--amber)}
.eyebrow.center{justify-content:center}
.head-block{max-width:780px;margin-bottom:clamp(2.4rem,5vw,3.8rem)}
.head-block .t-lead{margin-top:1rem}
.divider{height:1px;background:var(--border);width:100%}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.6rem;font-size:.86rem;font-weight:600;padding:.85rem 1.6rem;border-radius:44px;transition:all .35s var(--ease);position:relative}
.btn-primary{background:var(--ink);color:var(--cream)}
.btn-primary:hover{background:var(--amber);transform:translateY(-2px);box-shadow:0 10px 30px var(--amber-b)}
.btn-ghost{border:1px solid var(--border-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:var(--ink);color:var(--cream)}
.btn .arr{transition:transform .35s var(--ease)}
.btn:hover .arr{transform:translateX(4px)}

/* ---------- scroll progress / cursor ---------- */
#prog{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--amber),var(--kesari));z-index:120;transition:width .08s linear}
#cursor{position:fixed;top:0;left:0;width:7px;height:7px;border-radius:50%;background:var(--kesari);pointer-events:none;z-index:200;transform:translate(-50%,-50%);mix-blend-mode:multiply;opacity:0;transition:width .25s,height .25s,opacity .25s}
#cursorRing{position:fixed;top:0;left:0;width:30px;height:30px;border:1px solid var(--amber-b);border-radius:50%;pointer-events:none;z-index:199;transform:translate(-50%,-50%);opacity:0;transition:opacity .3s,width .25s,height .25s}
@media (pointer:coarse){#cursor,#cursorRing{display:none}}

/* ---------- page transition overlay ---------- */
#pageveil{position:fixed;inset:0;z-index:300;background:var(--cream);pointer-events:none;opacity:0;transition:opacity .45s var(--ease)}
#pageveil.show{opacity:1}
#pageveil .v-mark{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-family:var(--fm);color:var(--amber);font-size:1.4rem;opacity:0;transition:opacity .4s}
#pageveil.show .v-mark{opacity:1}
body.entering main{opacity:0;transform:translateY(14px)}
main{opacity:1;transform:none;transition:opacity .6s var(--ease),transform .6s var(--ease)}

/* ---------- nav ---------- */
#nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;display:flex;align-items:center;background:rgba(250,246,238,0);backdrop-filter:blur(0);border-bottom:1px solid transparent;transition:background .4s,border-color .4s,backdrop-filter .4s}
#nav.solid{background:rgba(250,246,238,.82);backdrop-filter:blur(14px) saturate(1.2);border-bottom:1px solid var(--border)}
#nav .wrap{display:flex;align-items:center;justify-content:space-between;width:min(1180px,94vw)}
.brand{display:flex;align-items:center;gap:.6rem}
.brand img{height:30px;width:auto}
.brand b{font-family:var(--fd);font-weight:600;font-size:1.28rem;letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:2rem}
.nav-links a{font-size:.82rem;font-weight:500;color:var(--ink-2);position:relative;padding:.3rem 0;transition:color .25s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--amber);transition:width .3s var(--ease)}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-links a.active::after,.nav-links a:hover::after{width:100%}
.nav-cta{font-size:.8rem;font-weight:600;color:var(--ink);border:1px solid var(--border-2);padding:.5rem 1.1rem;border-radius:40px;transition:all .3s var(--ease)}
.nav-cta:hover{background:var(--ink);color:var(--cream);border-color:var(--ink)}
.ham{display:none;width:30px;height:30px;flex-direction:column;justify-content:center;gap:5px}
.ham span{height:1.5px;background:var(--ink);width:22px;transition:.3s}
.ham.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.ham.open span:nth-child(2){opacity:0}
.ham.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
#mob{position:fixed;inset:0;background:var(--cream);z-index:99;display:flex;flex-direction:column;justify-content:center;gap:1.3rem;padding:0 9vw;transform:translateY(-100%);transition:transform .5s var(--ease);visibility:hidden}
#mob.open{transform:translateY(0);visibility:visible}
#mob a{font-family:var(--fd);font-size:1.9rem;font-weight:600;color:var(--ink)}
#mob a span{font-family:var(--fu);font-size:.66rem;color:var(--amber);display:block;letter-spacing:.2em}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}.rv-d4{transition-delay:.32s}.rv-d5{transition-delay:.4s}

/* ---------- page hero (interior pages) ---------- */
.phero{padding:calc(var(--nav-h) + clamp(3.5rem,9vh,6.5rem)) 0 clamp(3rem,6vh,5rem);position:relative;overflow:hidden}
.phero .crumb{font-family:var(--fm);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:1.4rem;display:flex;gap:.6rem;align-items:center}
.phero .crumb a{color:var(--amber)}
.phero h1{max-width:14ch}
.phero .t-lead{margin-top:1.4rem;max-width:620px}
.phero .pmeta{display:flex;gap:2.5rem;flex-wrap:wrap;margin-top:2rem}
.phero .pmeta div{font-family:var(--fm);font-size:.74rem;color:var(--ink-2)}
.phero .pmeta b{color:var(--amber);font-size:1.5rem;font-family:var(--fd);display:block;font-weight:600;letter-spacing:0}
.phero-bg{position:absolute;inset:0;z-index:-1;opacity:.9}

/* ---------- hero (home) ---------- */
#hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:var(--nav-h)}
#heroCanvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-inner{position:relative;z-index:2;width:min(1180px,92vw);margin-inline:auto}
.hero-grid{max-width:900px}
.hero-null{font-family:var(--fm);color:var(--amber);font-size:1rem;opacity:0;animation:fadeUp .8s var(--ease) .1s forwards}
.hero-welcome{font-family:var(--fm);font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-2);margin:1.1rem 0 1.6rem;opacity:0;animation:fadeUp .8s var(--ease) .25s forwards}
.t-hero .ln{display:block;overflow:hidden}
.t-hero .ln i{display:block;font-style:normal;transform:translateY(108%);transition:transform .9s var(--ease)}
.t-hero.in .ln i{transform:translateY(0)}
.t-hero .ln:nth-child(2) i{transition-delay:.12s}
.t-hero em{font-style:italic;color:var(--amber);font-weight:500}
.hero-sub{max-width:540px;margin:1.8rem 0 2.3rem;opacity:0;animation:fadeUp .9s var(--ease) .7s forwards}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap;opacity:0;animation:fadeUp .9s var(--ease) .85s forwards}
.scrollcue{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:.5rem;z-index:2;opacity:0;animation:fadeUp 1s var(--ease) 1.2s forwards}
.scrollcue .t-mono{font-size:.6rem;letter-spacing:.24em;text-transform:uppercase}
.scrollcue .bar{width:1px;height:38px;background:linear-gradient(var(--amber),transparent);position:relative;overflow:hidden}
.scrollcue .bar::after{content:"";position:absolute;top:-50%;left:0;width:1px;height:50%;background:var(--ink);animation:cue 1.8s var(--ease) infinite}
@keyframes cue{0%{top:-50%}100%{top:100%}}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* ---------- marquee ---------- */
.marquee{border-block:1px solid var(--border);background:var(--cream-2);padding:1.1rem 0;overflow:hidden;white-space:nowrap}
.marquee .track{display:inline-flex;gap:2.6rem;animation:scroll 28s linear infinite;will-change:transform}
.marquee span{font-family:var(--fd);font-style:italic;font-size:1.45rem;color:var(--ink-2);display:inline-flex;align-items:center;gap:2.6rem}
.marquee span::after{content:"·";color:var(--amber);font-style:normal}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ---------- cards: system types ---------- */
.types{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.tcard{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:2rem 1.8rem;transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s;position:relative;overflow:hidden;display:block}
.tcard::before{content:"";position:absolute;inset:0;background:radial-gradient(120% 100% at 100% 0,var(--amber-dim),transparent 60%);opacity:0;transition:opacity .45s}
.tcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--amber-b)}
.tcard:hover::before{opacity:1}
.tcard .gl{width:46px;height:46px;border-radius:12px;background:var(--cream-2);display:grid;place-items:center;margin-bottom:1.4rem;font-family:var(--fm);color:var(--amber);font-size:1.2rem;transition:.45s}
.tcard:hover .gl{background:var(--amber);color:#fff}
.tcard h4{font-family:var(--fd);font-size:1.5rem;font-weight:600;margin-bottom:.5rem}
.tcard p{font-size:.86rem;color:var(--ink-2);line-height:1.65;margin-bottom:1.3rem}
.chips{display:flex;flex-wrap:wrap;gap:.4rem}
.chip{font-family:var(--fm);font-size:.64rem;color:var(--ink-2);border:1px solid var(--border);border-radius:30px;padding:.25rem .65rem}

/* ---------- vocab ---------- */
.vocab{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--border);border-radius:18px;overflow:hidden;background:var(--card)}
.vcell{padding:2rem 1.8rem;border-right:1px solid var(--border);border-bottom:1px solid var(--border);position:relative;transition:background .4s}
.vcell:hover{background:var(--cream-2)}
.vcell .num{font-family:var(--fm);font-size:.66rem;color:var(--amber);position:absolute;top:1.3rem;right:1.5rem}
.vcell h4{font-family:var(--fd);font-size:1.6rem;font-weight:600;margin-bottom:.55rem}
.vcell p{font-size:.84rem;color:var(--ink-2);line-height:1.62}
.vcell h4::after{content:"";display:block;width:0;height:2px;background:var(--amber);margin-top:.5rem;transition:width .45s var(--ease)}
.vcell:hover h4::after{width:34px}

/* ---------- two expressions ---------- */
.twoexp{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
.expcard{position:relative;border-radius:20px;padding:2.4rem;overflow:hidden;border:1px solid var(--border);transition:transform .45s var(--ease),box-shadow .45s;display:block}
.expcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.expcard.dark{background:var(--ink);color:var(--cream)}
.expcard.dark .t-body{color:#C9C0B2}
.expcard .tag{font-family:var(--fm);font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:var(--amber-hi);margin-bottom:1rem}
.expcard h3{font-family:var(--fd);font-size:2rem;font-weight:600;margin-bottom:.7rem}
.expcard .go{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--fm);font-size:.74rem;color:var(--amber-hi);margin-top:1.4rem}
.expcard .go .arr{transition:transform .35s var(--ease)}
.expcard:hover .go .arr{transform:translateX(5px)}

/* ---------- paradox ---------- */
.dark-sec{background:var(--steel);color:#EDE7DC}
.dark-sec .t-label{color:var(--amber-hi)}
.dark-sec .t-h2{color:#F6F1E8}
.pquote{font-family:var(--fd);font-style:italic;font-size:clamp(1.3rem,2.6vw,2.1rem);line-height:1.45;color:#F0EADF;max-width:880px;margin:2.4rem 0 .8rem;font-weight:400}
.pquote .mk{color:var(--amber-hi)}
.pattr{font-family:var(--fm);font-size:.72rem;color:var(--ink-muted);letter-spacing:.12em}
.plevels{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:3rem}
.plevel{border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:1.8rem 1.6rem;background:rgba(255,255,255,.025);transition:.45s}
.plevel:hover{background:rgba(255,255,255,.06);border-color:var(--amber-b)}
.plevel .lv{font-family:var(--fm);font-size:.66rem;color:var(--amber-hi);letter-spacing:.18em}
.plevel h5{font-family:var(--fd);font-size:1.5rem;font-weight:600;margin:.4rem 0 .7rem;color:#F6F1E8}
.plevel p{font-size:.83rem;color:#C9C0B2;line-height:1.6}
.dark-line{margin-top:2.8rem;max-width:680px;color:#D8D0C2;line-height:1.7;font-size:.96rem}

/* ---------- signal band ---------- */
.sigband{background:var(--ink);color:var(--cream);text-align:center;overflow:hidden}
#sigCanvas{width:100%;height:180px;display:block;margin:2.4rem 0}
.sigband .t-h2{color:var(--cream)}
.sigrow{display:flex;justify-content:center;gap:2.5rem;flex-wrap:wrap;margin-top:1rem}
.sigrow div{font-size:.8rem;color:var(--ink-muted)}
.sigrow b{color:var(--amber-hi);font-weight:600}

/* ---------- method horizontal timeline ---------- */
.steps-meta{display:flex;gap:2.5rem;flex-wrap:wrap;margin-top:1.2rem}
.steps-meta div{font-family:var(--fm);font-size:.74rem;color:var(--ink-2)}
.steps-meta b{color:var(--amber);font-size:1.4rem;font-family:var(--fd);display:block;font-weight:600}
.htrack-outer{margin-top:2.6rem;position:relative}
.htrack{display:flex;gap:1.3rem;overflow-x:auto;padding:.5rem .2rem 2rem;scroll-snap-type:x mandatory;scrollbar-width:thin}
.htrack::-webkit-scrollbar{height:6px}
.htrack::-webkit-scrollbar-thumb{background:var(--amber);border-radius:6px}
.scard{scroll-snap-align:start;min-width:300px;max-width:300px;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:1.7rem;transition:transform .4s var(--ease),box-shadow .4s;position:relative}
.scard:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.scard .sn{font-family:var(--fm);font-size:.7rem;color:#fff;background:var(--ink);width:30px;height:30px;border-radius:8px;display:grid;place-items:center;margin-bottom:1.1rem}
.scard.zero .sn{background:var(--amber)}
.scard h5{font-family:var(--fd);font-size:1.35rem;font-weight:600;margin-bottom:.5rem;line-height:1.15}
.scard .role{font-family:var(--fm);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-bottom:.7rem}
.scard p{font-size:.82rem;color:var(--ink-2);line-height:1.6}
.scard .when{font-family:var(--fm);font-size:.66rem;color:var(--ink-muted);margin-top:1rem;border-top:1px solid var(--border);padding-top:.7rem}
.hhint{font-family:var(--fm);font-size:.66rem;color:var(--ink-muted);display:flex;align-items:center;gap:.5rem;margin-top:.4rem}
.hhint .arr{animation:nudge 1.6s ease-in-out infinite}
@keyframes nudge{0%,100%{transform:translateX(0)}50%{transform:translateX(5px)}}

/* ---------- metrics ---------- */
.metrics{background:var(--ink);color:var(--cream)}
.mgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;text-align:center}
.mcell .big{font-family:var(--fd);font-weight:600;font-size:clamp(2.6rem,5vw,4rem);line-height:1;color:var(--amber-hi)}
.mcell .lab{font-size:.78rem;color:var(--ink-muted);margin-top:.6rem;letter-spacing:.04em}

/* ---------- natural ---------- */
.nat{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.ncell{padding:1.8rem;border:1px solid var(--border);border-radius:16px;background:var(--card);transition:.4s}
.ncell:hover{border-color:var(--amber-b);transform:translateY(-4px);box-shadow:var(--shadow)}
.ncell .dot{width:9px;height:9px;border-radius:50%;background:var(--amber);margin-bottom:1rem}
.ncell h5{font-family:var(--fd);font-size:1.3rem;font-weight:600;margin-bottom:.5rem}
.ncell p{font-size:.83rem;color:var(--ink-2);line-height:1.62}

/* ---------- seven questions ---------- */
.qlist{border-top:1px solid var(--border)}
.qrow{display:grid;grid-template-columns:84px 1fr 200px;gap:1.5rem;align-items:start;padding:1.7rem .2rem;border-bottom:1px solid var(--border);transition:.35s}
.qrow:hover{background:var(--cream-2);padding-left:1rem}
.qrow .qn{font-family:var(--fm);font-size:.74rem;color:var(--amber)}
.qrow .qq{font-family:var(--fd);font-size:clamp(1.1rem,1.8vw,1.45rem);font-weight:500;line-height:1.3}
.qrow .qt{font-size:.8rem;color:var(--ink-2);line-height:1.55}
.qrow .qt b{display:block;font-family:var(--fm);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-bottom:.3rem}

/* ---------- situations (for whom) ---------- */
.situations{display:flex;flex-direction:column;gap:1.2rem}
.sit-block{display:grid;grid-template-columns:64px 1fr 1fr;gap:2rem;align-items:start;background:var(--card);border:1px solid var(--border);border-radius:18px;padding:2.2rem;transition:transform .4s var(--ease),box-shadow .4s,border-color .4s}
.sit-block:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--amber-b)}
.sit-block .sx{font-family:var(--fm);font-size:.8rem;color:#fff;background:var(--ink);width:48px;height:48px;border-radius:12px;display:grid;place-items:center}
.sit-block .sbody h3{font-family:var(--fd);font-size:1.7rem;font-weight:600;margin-bottom:.7rem}
.sit-block .sbody p{font-size:.9rem;color:var(--ink-2);line-height:1.7}
.sit-block .schange{border-left:2px solid var(--amber);padding-left:1.3rem}
.sit-block .schange b{display:block;font-family:var(--fm);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-bottom:.5rem}
.sit-block .schange p{font-size:.9rem;color:var(--ink);line-height:1.7}

/* ---------- exit criteria ---------- */
.exit-lead{font-family:var(--fd);font-style:italic;font-size:clamp(1.2rem,2.4vw,1.8rem);color:#F0EADF;max-width:760px;line-height:1.45;margin:1.4rem 0 .5rem}
.exit-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:2.6rem}
.ecrit{display:flex;align-items:flex-start;gap:1rem;padding:1.3rem 1.4rem;border:1px solid rgba(255,255,255,.12);border-radius:13px;background:rgba(255,255,255,.025);transition:.4s}
.ecrit:hover{background:rgba(255,255,255,.06)}
.ecrit .ck{width:24px;height:24px;border-radius:50%;border:1.5px solid var(--amber-hi);flex-shrink:0;display:grid;place-items:center;margin-top:2px}
.ecrit .ck svg{width:13px;height:13px;stroke:var(--amber-hi);stroke-width:2.5;fill:none;stroke-dasharray:24;stroke-dashoffset:24;transition:stroke-dashoffset .6s var(--ease)}
.ecrit.in .ck svg{stroke-dashoffset:0}
.ecrit h6{font-size:.95rem;font-weight:600;color:#F6F1E8;margin-bottom:.25rem}
.ecrit p{font-size:.8rem;color:#C5BCAE;line-height:1.55}

/* ---------- platform: generates / instrument ---------- */
.gen{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.gcard{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:2rem;transition:.4s}
.gcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--amber-b)}
.gcard .gk{font-family:var(--fm);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-bottom:.8rem}
.gcard h4{font-family:var(--fd);font-size:1.5rem;font-weight:600;margin-bottom:.55rem}
.gcard p{font-size:.85rem;color:var(--ink-2);line-height:1.65}
.instr{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.instr-vis{aspect-ratio:4/3;border-radius:18px;border:1px solid var(--border);background:var(--cream-2);position:relative;overflow:hidden}

/* ---------- diagnostic preview (begin) ---------- */
.diag{max-width:720px;margin-inline:auto}
.diag-card{background:var(--card);border:1px solid var(--border);border-radius:22px;padding:clamp(1.8rem,4vw,2.8rem);box-shadow:var(--shadow)}
.diag-q{font-family:var(--fd);font-size:clamp(1.4rem,2.6vw,2rem);font-weight:600;margin-bottom:1.6rem;min-height:2.2em}
.diag-opts{display:grid;gap:.8rem}
.diag-opt{text-align:left;border:1px solid var(--border-2);border-radius:13px;padding:1rem 1.2rem;font-size:.92rem;transition:.3s;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.diag-opt:hover{border-color:var(--amber);background:var(--amber-dim);transform:translateX(3px)}
.diag-opt .od{font-family:var(--fm);font-size:.62rem;color:var(--ink-muted);letter-spacing:.1em}
.diag-progress{display:flex;gap:.4rem;margin-bottom:1.6rem}
.diag-progress i{height:3px;flex:1;background:var(--border);border-radius:3px;transition:.4s}
.diag-progress i.on{background:var(--amber)}
.diag-result{text-align:center}
.diag-result .rk{font-family:var(--fm);font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--amber);margin-bottom:.8rem}
.diag-result h3{font-family:var(--fd);font-size:clamp(1.8rem,4vw,2.8rem);font-weight:600;margin-bottom:1rem}
.diag-result p{color:var(--ink-2);line-height:1.7;max-width:480px;margin:0 auto 1.8rem}
.diag-note{font-family:var(--fm);font-size:.64rem;color:var(--ink-muted);text-align:center;margin-top:1.4rem;letter-spacing:.04em}

/* ---------- how it works ---------- */
.how{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;counter-reset:h}
.hcell{position:relative;padding:2rem 1.6rem;border:1px solid var(--border);border-radius:16px;background:var(--card)}
.hcell::before{counter-increment:h;content:"0" counter(h);font-family:var(--fm);font-size:.72rem;color:var(--amber);display:block;margin-bottom:1rem}
.hcell h5{font-family:var(--fd);font-size:1.35rem;font-weight:600;margin-bottom:.5rem}
.hcell p{font-size:.85rem;color:var(--ink-2);line-height:1.62}

/* ---------- contact ---------- */
.contactbar{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin-top:2rem}
.cbtn{border:1px solid var(--border-2);border-radius:44px;padding:.8rem 1.5rem;font-size:.85rem;font-weight:500;transition:.3s;display:inline-flex;gap:.5rem;align-items:center}
.cbtn:hover{border-color:var(--ink);background:var(--ink);color:var(--cream)}

/* ---------- cta ---------- */
.cta{text-align:center;background:radial-gradient(120% 90% at 50% 0,var(--cream-2),var(--cream))}
.cta-card{max-width:760px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:26px;padding:clamp(2.5rem,5vw,4rem);box-shadow:var(--shadow-md);position:relative;overflow:hidden}
.cta-card::before{content:"∅";position:absolute;font-family:var(--fm);font-size:14rem;color:var(--amber-dim);right:-1rem;bottom:-3rem;line-height:1}
.cta-card>*{position:relative}
.magnet{display:inline-flex;margin-top:2rem;will-change:transform}

/* ---------- footer ---------- */
footer{background:var(--ink);color:#C9C0B2;padding:4rem 0 2.5rem}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;margin-bottom:3rem}
.fbrand img{height:34px;margin-bottom:1rem;opacity:.95}
.fbrand p{font-size:.84rem;line-height:1.65;max-width:280px;color:#9a9183}
.fcol h6{font-family:var(--fm);font-size:.64rem;letter-spacing:.18em;text-transform:uppercase;color:var(--amber-hi);margin-bottom:1.1rem}
.fcol a{display:block;font-size:.86rem;color:#C9C0B2;margin-bottom:.7rem;transition:color .25s}
.fcol a:hover{color:#fff}
.fcol .fp{font-size:.8rem;color:#9a9183;line-height:1.6}
.fbot{border-top:1px solid rgba(255,255,255,.1);padding-top:1.6rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.74rem;color:#857c6f;font-family:var(--fm)}

/* ---------- responsive ---------- */
@media(max-width:880px){
  .nav-links,.nav-cta{display:none}
  .ham{display:flex}
  .types,.vocab,.plevels,.nat,.mgrid,.twoexp,.gen,.how,.instr{grid-template-columns:1fr}
  .vocab{border-radius:14px}.vcell{border-right:none}
  .exit-grid{grid-template-columns:1fr}
  .mgrid{gap:2.5rem}
  .qrow{grid-template-columns:54px 1fr;gap:.8rem}.qrow .qt{grid-column:1/-1;padding-left:54px}
  .sit-block{grid-template-columns:1fr;gap:1.2rem}
  .fgrid{grid-template-columns:1fr;gap:2rem}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important;scroll-behavior:auto!important}
  .t-hero .ln i{transform:none}
  #cursor,#cursorRing,#pageveil{display:none}
  body.entering main{opacity:1;transform:none}
}

/* ---------- status badges ---------- */
.badge{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--fm);font-size:.58rem;letter-spacing:.12em;text-transform:uppercase;padding:.28rem .6rem;border-radius:30px;font-weight:500}
.badge::before{content:"";width:6px;height:6px;border-radius:50%}
.badge-live{background:var(--amber-dim);color:var(--amber)}
.badge-live::before{background:var(--amber);box-shadow:0 0 0 3px rgba(191,107,21,.15)}
.badge-soon{background:rgba(26,22,20,.05);color:var(--ink-muted)}
.badge-soon::before{background:var(--ink-muted)}
.dark-sec .badge-soon{background:rgba(255,255,255,.06);color:var(--ink-muted)}
.tcard .badge{position:absolute;top:1.4rem;right:1.4rem}
.tcard.soon{opacity:.86}
.tcard.soon .gl{background:rgba(26,22,20,.05);color:var(--ink-muted)}
.tcard.soon:hover .gl{background:var(--ink-muted);color:#fff}

/* ---------- case library ---------- */
.filters{display:flex;flex-direction:column;gap:1.1rem;margin-bottom:2.4rem}
.fgroup{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem}
.fgroup .flabel{font-family:var(--fm);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-muted);width:104px;flex-shrink:0}
.fbtn{font-family:var(--fu);font-size:.78rem;font-weight:500;border:1px solid var(--border-2);border-radius:30px;padding:.4rem .9rem;color:var(--ink-2);transition:.25s}
.fbtn:hover{border-color:var(--amber);color:var(--ink)}
.fbtn.on{background:var(--ink);border-color:var(--ink);color:var(--cream)}
.cgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem}
.ccard{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:1.7rem;transition:transform .4s var(--ease),box-shadow .4s,opacity .3s;display:flex;flex-direction:column}
.ccard:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--amber-b)}
.ccard.hide{display:none}
.ccard .ctags{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:1.1rem}
.ccard .ctag{font-family:var(--fm);font-size:.58rem;letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--border);border-radius:30px;padding:.22rem .6rem;color:var(--ink-2)}
.ccard .ctag.int{border-color:var(--amber-b);color:var(--amber)}
.ccard h4{font-family:var(--fd);font-size:1.35rem;font-weight:600;line-height:1.2;margin-bottom:.6rem}
.ccard p{font-size:.83rem;color:var(--ink-2);line-height:1.62;flex:1}
.ccard .csig{font-family:var(--fm);font-size:.64rem;color:var(--amber);margin-top:1rem;border-top:1px solid var(--border);padding-top:.7rem}
.cempty{grid-column:1/-1;text-align:center;color:var(--ink-muted);font-family:var(--fm);font-size:.78rem;padding:3rem 0}
.placeholder-note{font-family:var(--fm);font-size:.66rem;color:var(--ink-muted);background:var(--amber-dim);border:1px dashed var(--amber-b);border-radius:12px;padding:1rem 1.2rem;margin-bottom:2rem;line-height:1.6}
@media(max-width:880px){.cgrid{grid-template-columns:1fr}.fgroup .flabel{width:100%}}

/* ===========================================================
   v2 — cinematic craft layer
   =========================================================== */
/* paper grain (global, subtle) */
body::after{content:"";position:fixed;inset:0;z-index:90;pointer-events:none;opacity:.05;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* signal spine */
#spine{position:fixed;left:26px;top:0;bottom:0;width:1px;z-index:80;pointer-events:none}
#spine .rail{position:absolute;inset:0;background:linear-gradient(180deg,transparent,var(--border) 8%,var(--border) 92%,transparent)}
#spine .pulse{position:absolute;left:-3.5px;top:0;width:8px;height:8px;border-radius:50%;background:var(--kesari);box-shadow:0 0 12px 2px rgba(243,112,33,.55);transition:transform .12s linear}
@media(max-width:1100px){#spine{display:none}}

/* ---- scroll-scrubbed hero ---- */
#sh{position:relative;min-height:100vh}
#sh .pin{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding-top:var(--nav-h)}
#shCanvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}
#sh .copy{position:relative;z-index:2;width:min(1180px,92vw);margin-inline:auto;max-width:none}
#sh .copy-in{max-width:760px}
.sh-null{font-family:var(--fm);color:var(--amber);font-size:1rem;margin-bottom:1rem}
.sh-title{will-change:filter,opacity}
.sh-title em{font-style:italic;color:var(--amber);font-weight:500}
.sh-sub{max-width:520px;margin:1.7rem 0 2.2rem;will-change:filter,opacity}
.sh-cta{display:flex;gap:1rem;flex-wrap:wrap}
.sh-hint{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);font-family:var(--fm);font-size:.6rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-2);display:flex;align-items:center;gap:.6rem;z-index:2}
.sh-hint::after{content:"";width:30px;height:1px;background:linear-gradient(90deg,var(--amber),transparent)}

/* ---- interactive constraint demo ---- */
.demo-wrap{display:grid;grid-template-columns:1fr;gap:2rem}
.demo-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:1.6rem;box-shadow:var(--shadow);position:relative;overflow:hidden}
#cdCanvas{width:100%;height:240px;display:block}
.demo-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem;margin-top:1.2rem;padding-top:1.2rem;border-top:1px solid var(--border)}
.demo-read{display:flex;gap:2rem;flex-wrap:wrap}
.demo-read .rk{font-family:var(--fm);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-muted)}
.demo-read .rv-num{font-family:var(--fd);font-size:2rem;font-weight:600;line-height:1;color:var(--ink)}
.demo-read .rv-num.amb{color:var(--amber)}
#cdBtn{background:var(--ink);color:var(--cream);border-radius:44px;padding:.8rem 1.5rem;font-size:.84rem;font-weight:600;transition:.3s var(--ease);display:inline-flex;gap:.5rem;align-items:center}
#cdBtn:hover{background:var(--amber);transform:translateY(-2px);box-shadow:0 10px 26px var(--amber-b)}
#cdBtn.relieved{background:var(--amber)}
.demo-caption{font-family:var(--fd);font-style:italic;font-size:clamp(1.05rem,1.8vw,1.35rem);color:var(--ink-2);margin-top:1.4rem;min-height:1.5em;transition:color .4s}
.demo-legend{display:flex;gap:1.4rem;flex-wrap:wrap;margin-top:.4rem}
.demo-legend span{font-size:.72rem;color:var(--ink-2);display:inline-flex;align-items:center;gap:.45rem}
.demo-legend i{width:9px;height:9px;border-radius:50%;display:inline-block}

@media(prefers-reduced-motion:reduce){
  #sh{height:auto}
  #sh .pin{position:static;height:auto;padding:calc(var(--nav-h) + 4rem) 0 4rem}
  .sh-title,.sh-sub{filter:none!important;opacity:1!important}
  #spine .pulse{display:none}
  body::after{display:none}
}

/* ===========================================================
   v3 — brand lockup + per-page hero visualisations
   =========================================================== */
.brand-lock{display:flex;flex-direction:column;line-height:1.04}
.brand-lock b{font-family:var(--fd);font-weight:600;font-size:1.28rem;letter-spacing:.01em}
.brand-lock i{font-style:normal;font-family:var(--fm);font-size:.5rem;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-2);margin-top:3px}

.phero-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:2.5rem;align-items:center}
.phero-copy{min-width:0}
.phero-viz{position:relative;width:100%;max-width:460px;aspect-ratio:1/1;margin-inline:auto}
.phero-viz canvas{position:absolute;inset:0;width:100%;height:100%}
.viz-cap{position:absolute;left:0;bottom:-.4rem;font-family:var(--fm);font-size:.56rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-muted)}
@media(max-width:860px){
  .phero-wrap{grid-template-columns:1fr;gap:1.4rem}
  .phero-viz{max-width:300px;aspect-ratio:4/3;order:2}
  .viz-cap{display:none}
}

/* ===========================================================
   v4 — mobile safety
   =========================================================== */
canvas{max-width:100%}
*{min-width:0}
#hero, #sh .pin{min-height:100svh}
.phero-viz{min-height:220px}
@media(max-width:860px){
  .phero-viz{min-height:200px;max-width:280px}
  .t-hero{font-size:clamp(2.3rem,9vw,3.2rem)}
  .wrap, #nav .wrap{width:min(1180px,90vw)}
}

/* ===========================================================
   HOME — scene deck (one screen = one idea, idea left / visual right)
   single source of truth; tokens shared with every page
   =========================================================== */
html:has(.scene){scroll-snap-type:y proximity}
.scene{height:100svh;min-height:100svh;scroll-snap-align:start;display:grid;place-items:center;
  overflow:hidden;position:relative;padding:calc(var(--nav-h) + 1.5vh) 0 2vh}
.scene .wrap{display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(1.5rem,5vw,4.5rem);align-items:center}
.scene .idea{max-width:34rem}
.scene h1{font-family:var(--fd);font-weight:600;line-height:1.02;letter-spacing:-.01em;font-size:clamp(2.4rem,6.4vw,5.1rem)}
.scene h2{font-family:var(--fd);font-weight:600;line-height:1.02;letter-spacing:-.01em;font-size:clamp(2.1rem,5.2vw,4rem)}
.scene em{font-style:italic;color:var(--amber)}
.scene .lead{font-size:clamp(1rem,1.9vw,1.28rem);font-weight:300;color:var(--ink-2);max-width:32ch;margin-top:1.4rem;line-height:1.5}
.scene .row{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:1.9rem}
.scene .viz{position:relative;width:100%;height:min(60svh,500px)}
.scene .viz canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.scene .viz .cap{position:absolute;left:0;bottom:-1.4rem;font-family:var(--fm);font-size:.56rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-muted)}
.scene .mx{display:flex;gap:2.6rem;flex-wrap:wrap;margin-top:1.9rem}
.scene .mx b{font-family:var(--fd);font-size:clamp(2.2rem,5.5vw,3.4rem);font-weight:600;color:var(--amber);display:block;line-height:1}
.scene .mx span{font-family:var(--fm);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2)}
.scene.dark{background:var(--steel);color:var(--cream)}
.scene.dark .lead{color:rgba(250,246,238,.74)}
.scene.dark .mx span{color:rgba(250,246,238,.6)}
.scene.dark .viz .cap{color:rgba(250,246,238,.55)}
.scene .cue{position:absolute;left:50%;bottom:2.4vh;transform:translateX(-50%);font-family:var(--fm);font-size:.56rem;
  letter-spacing:.22em;text-transform:uppercase;color:var(--ink-2);display:flex;align-items:center;gap:.6rem;opacity:.7}
.scene .cue i{width:24px;height:1px;background:var(--ink-2);animation:scue 1.8s ease-in-out infinite}
@keyframes scue{0%,100%{transform:scaleX(.4);opacity:.4}50%{transform:scaleX(1);opacity:1}}
@media(max-width:860px){
  .scene .wrap{grid-template-columns:1fr;gap:clamp(.8rem,3.5vh,1.8rem)}
  .scene .idea{order:1;max-width:none}
  .scene .viz{order:2;height:clamp(150px,26svh,250px)}
  .scene .lead{max-width:38ch}
  .scene .mx{gap:1.8rem;margin-top:1.4rem}
  .scene .cue{display:none}
}

/* nav contrast over dark scenes */
#nav.on-dark{background:transparent!important;backdrop-filter:none!important}
#nav.on-dark .brand-lock b,#nav.on-dark .nav-links a{color:var(--cream)}
#nav.on-dark .brand-lock i{color:rgba(250,246,238,.6)}
#nav.on-dark .nav-links a:hover{color:#fff}
#nav.on-dark .nav-cta{background:var(--amber);color:var(--cream)}

/* accessibility baseline (correctness by construction) */
.skip-link{position:absolute;left:-999px;top:0;z-index:200;background:var(--ink);color:var(--cream);
  padding:.6rem 1rem;border-radius:0 0 8px 0;font-family:var(--fm);font-size:.72rem}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}

@media(prefers-reduced-motion:reduce){ html:has(.scene){scroll-snap-type:none} }