/* ============================================================
   RBX STRATEGY : homepage, October 2026 redesign
   Loaded on index.html only, after styles.css, scoped to body.home.
   Depth model, back to front: ground, ink bands, raised sheets,
   the instrument crossing the band edge, the glass nav on top.
   Tokens extend styles.css; --accent stays the one brand hex.
   ============================================================ */
body.home{
  --ground:#070B0D;
  --band:#0B1215;
  --band-top:#0F1A1D;
  --band-bottom:#090F12;
  --panel-top:#16262A;
  --panel-bottom:#111D20;
  --sheet-top:#152124;
  --sheet-bottom:#10191C;
  --h-rule:#1C2829;
  --h-rule-band:#22312F;
  --track:#24332F;
  --text-2:#A6B4B3;
  --leak:#FF9A5C;
  --leak-bg:#2E1D12;
  background:var(--ground);
  position:relative;
  isolation:isolate;
}
/* Film grain over the whole page, so no surface is a flat digital fill. */
body.home::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background-image:url(grain.png);opacity:.5;mix-blend-mode:soft-light}

body.home .wrap{padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
body.home section{padding:96px 0}

/* ---------- shared pieces ---------- */
.h-lab{font-family:var(--mono);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2)}
.h-head{display:flex;flex-direction:column;gap:12px;margin-bottom:40px;max-width:720px}
.h-head h2{font-size:clamp(30px,3.4vw,42px);line-height:1.08;text-wrap:balance}
.h-head p{color:var(--text-2);font-size:17px;line-height:1.6;max-width:62ch}
.h-link{display:inline-flex;align-items:center;min-height:44px;font-weight:600;font-size:16px;color:var(--accent)}
.h-link:hover{color:var(--text)}
body.home .btn{border-radius:999px;font-size:16px;min-height:48px;padding:0 24px;justify-content:center}
body.home .btn-primary:hover{transform:none;filter:brightness(1.06);box-shadow:none}

/* ---------- ink bands: tonal depth, a measurement grid lit around the instrument ---------- */
.h-band{position:relative;isolation:isolate;background:linear-gradient(180deg,var(--band-top) 0%,var(--band) 55%,var(--band-bottom) 100%)}
.h-band::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(to right,rgba(43,226,194,.10) 1px,transparent 1px),linear-gradient(to bottom,rgba(43,226,194,.10) 1px,transparent 1px),linear-gradient(to right,rgba(43,226,194,.04) 1px,transparent 1px),linear-gradient(to bottom,rgba(43,226,194,.04) 1px,transparent 1px);
  background-size:120px 120px,120px 120px,24px 24px,24px 24px;
  -webkit-mask-image:radial-gradient(ellipse 55% 75% at 74% 55%,#000 0%,transparent 80%);mask-image:radial-gradient(ellipse 55% 75% at 74% 55%,#000 0%,transparent 80%)}
.h-band::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background-image:url(grain.png);opacity:.55;mix-blend-mode:soft-light}

/* ---------- raised sheets ---------- */
.h-sheet{background:linear-gradient(180deg,var(--sheet-top) 0%,var(--sheet-bottom) 100%);border-radius:14px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 0 0 1px rgba(255,255,255,.045),0 18px 40px -18px rgba(0,0,0,.75),0 50px 90px -50px rgba(0,0,0,.85)}

/* ---------- hero ---------- */
.h-hero{padding:152px 0 40px;border-bottom:2px solid var(--accent)}
.h-hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:64px;align-items:center}
.h-hero-copy{display:flex;flex-direction:column;gap:28px;min-width:0}
.h-hero h1{font-size:clamp(42px,5.6vw,72px);line-height:1.02;letter-spacing:-.035em;font-weight:600;text-wrap:balance}
.h-hero .h-sub{font-size:19px;line-height:1.55;color:var(--text-2);max-width:56ch}
.h-hero-cta{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center}
.h-quiet{display:inline-flex;align-items:center;min-height:48px;font-weight:600;font-size:16px;color:var(--text)}
.h-quiet:hover{color:var(--accent)}
.h-note{font-size:14px;color:var(--text-2)}

/* ---------- the Leak Ledger ---------- */
.h-ledger{position:relative;margin:0;padding:28px 28px 24px;border-top:2px solid var(--accent);border-radius:4px;
  background:linear-gradient(180deg,var(--panel-top) 0%,var(--panel-bottom) 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 0 0 1px rgba(255,255,255,.04),0 40px 80px -40px rgba(0,0,0,.8);
  transform:translateY(96px);z-index:2;min-width:0}
.h-ledger::before{content:"";position:absolute;inset:-14% -12%;z-index:-1;pointer-events:none;background:radial-gradient(closest-side,rgba(43,226,194,.17),rgba(43,226,194,0))}
.h-ledger-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;padding-bottom:12px}
.h-ledger-head h2{font-size:20px;letter-spacing:-.01em}
.h-row{border-top:1px solid var(--h-rule-band);padding:12px 10px 4px;margin:0 -10px}
.h-row.is-leak{background:var(--leak-bg)}
.h-row-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.h-row-name{font-weight:600;font-size:16px;color:var(--text);display:inline-flex;align-items:center;gap:8px}
.h-row.is-leak .h-row-name{color:var(--leak)}
.h-chip{display:inline-flex;align-items:center;gap:4px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.h-chip svg{width:9px;height:8px}
.h-chip[hidden],.h-reset[hidden],.h-hint[hidden]{display:none}
.h-val{font-family:var(--mono);font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums}
.h-meter{display:flex;gap:6px}
.h-seg{flex:1;min-width:0;height:44px;padding:0;border:0;background:transparent;cursor:pointer;display:flex;align-items:center}
.h-seg span{display:block;width:100%;height:12px;border-radius:2px;background:var(--track);transition:background-color .25s ease}
.h-seg.is-on span{background:var(--accent)}
.h-row.is-leak .h-seg.is-on span{background:var(--leak)}
.h-seg:hover span{opacity:.8}
.h-ledger-foot{border-top:1px solid var(--h-rule-band);padding-top:16px;display:flex;flex-direction:column;gap:8px}
.h-ledger-foot p{font-size:15px}
.h-ledger-foot strong{color:var(--leak)}
.h-ledger-actions{display:flex;flex-wrap:wrap;gap:4px 24px;align-items:center}
.h-ledger-actions .h-link{font-size:15px}
.h-reset{background:none;border:0;padding:0;min-height:44px;font:inherit;font-size:15px;color:var(--text-2);cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.h-hint{font-size:14px;color:var(--text-2)}
/* The diagnosis on load: meters light up row by row, the leak lands last. */
.h-ledger.h-intro .h-seg.is-on span{animation:h-light .32s ease-out backwards;animation-delay:var(--d,0s)}
.h-ledger.h-intro .h-row.is-leak{animation:h-rowin .45s ease-out 1.35s backwards}
.h-ledger.h-intro .h-row.is-leak .h-chip{animation:h-chipin .3s ease-out 1.5s backwards}
@keyframes h-light{from{background-color:var(--track)}}
@keyframes h-rowin{from{background-color:transparent}}
@keyframes h-chipin{from{opacity:0;transform:translateY(3px)}}

/* ---------- proof ---------- */
.h-after-lift{padding-top:200px !important}
.h-head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.h-head-row .h-head{margin-bottom:0}
.h-proof{padding:4px 32px}
.h-proof-row{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr) minmax(0,1.4fr);gap:32px;padding:28px 0;border-top:1px solid var(--h-rule);align-items:baseline;color:var(--text)}
.h-proof-row:first-child{border-top:0}
.h-proof-row h3{font-size:20px;line-height:1.25}
.h-proof-row .h-lab{display:block;margin-top:6px;font-size:12px}
.h-fig{font-family:var(--display);font-weight:600;font-size:30px;letter-spacing:-.02em;line-height:1.1;color:var(--accent);font-variant-numeric:tabular-nums}
.h-fig-l{font-size:14px;color:var(--text-2)}
.h-proof-row p.h-desc{color:var(--text-2);font-size:16px;line-height:1.55}
.h-proof-row:hover h3{color:var(--accent)}

/* ---------- method ---------- */
.h-dims{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.h-dim{padding-top:20px;border-top:1px solid var(--text);display:flex;flex-direction:column;gap:10px}
.h-dim h3{font-size:20px}
.h-dim p,.h-base p{color:var(--text-2);font-size:16px;line-height:1.6}
.h-base{margin-top:24px;padding:28px 32px;background:linear-gradient(180deg,var(--sheet-top),var(--sheet-bottom));border-top:2px solid var(--accent);border-radius:4px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:32px;align-items:baseline}
.h-base h3{font-size:20px;margin-top:6px}

/* ---------- how we start ---------- */
.h-ladder{list-style:none;margin:0;padding:0 32px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.h-rung{padding:32px 28px 32px 0;display:flex;flex-direction:column;gap:14px}
.h-rung+.h-rung{padding-left:28px;border-left:1px solid var(--h-rule)}
.h-rung .h-meta{font-family:var(--mono);font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums}
.h-rung h3{font-size:22px}
.h-rung p{color:var(--text-2);font-size:16px;line-height:1.6}
.h-rung .h-link{margin-top:auto}
.h-small{font-size:15px;color:var(--text-2);max-width:70ch;margin-top:28px}

/* ---------- services ---------- */
.h-svc-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:64px}
.h-svc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:24px;padding:20px 0;border-top:1px solid var(--h-rule);align-items:baseline;color:var(--text)}
.h-svc:last-child{border-bottom:1px solid var(--h-rule)}
.h-svc h3{font-size:17px}
.h-svc p{color:var(--text-2);font-size:15px;line-height:1.55}
.h-svc:hover h3{color:var(--accent)}

/* ---------- about + the diagnostic sample ---------- */
.h-two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;align-items:start}
.h-two>*{min-width:0}
.h-about{display:flex;flex-direction:column;gap:20px}
.h-about h2{font-size:clamp(30px,3.4vw,42px);line-height:1.08}
.h-about p{color:var(--text-2);font-size:17px;line-height:1.6;max-width:62ch}
.h-beliefs{list-style:none;margin:8px 0 0;padding:0}
.h-beliefs li{padding:14px 0;border-top:1px solid var(--h-rule)}
.h-beliefs li:last-child{border-bottom:1px solid var(--h-rule)}
.h-sample{margin:0;display:flex;flex-direction:column;gap:28px;isolation:isolate}
.h-paper{position:relative;color:#0D1117;background:#FFFFFF;border:1px solid #E3E8E7;border-top:2px solid var(--accent);border-radius:2px;padding:28px 30px 32px;box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.h-paper::before,.h-paper::after{content:"";position:absolute;inset:-1px;z-index:-1;background:#EEF1F1;border:1px solid #DCE2E1;border-radius:2px;box-shadow:0 20px 40px -24px rgba(0,0,0,.5)}
.h-paper::before{transform:translate(10px,10px) rotate(1.2deg)}
.h-paper::after{transform:translate(20px,20px) rotate(2.4deg);z-index:-2}
.h-paper .p-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding-bottom:14px;border-bottom:1px solid #E3E8E7}
.h-paper .p-brand{font-family:var(--display);font-weight:600;font-size:14px}
.h-paper .p-brand b{border-bottom:2px solid var(--accent);font-weight:600}
.h-paper .p-brand small{font-weight:500;color:#4A5560;font-size:14px}
.h-paper .p-lab{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#4A5560}
.h-paper h3{font-size:22px;margin-top:18px}
.h-paper .p-meta{font-family:var(--mono);font-size:13px;color:#4A5560;margin-top:6px}
.h-paper .p-scores{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:18px 0;border-bottom:1px solid #E3E8E7}
.h-paper .p-scores span{display:block;font-size:12px;color:#4A5560}
.h-paper .p-scores b{display:block;font-family:var(--mono);font-size:15px;font-weight:500;margin-top:6px}
.h-paper .p-scores .p-leak span,.h-paper .p-scores .p-leak b,.h-paper .p-leak-lab{color:#B4480E}
.h-paper .p-scores .p-leak span{font-weight:600}
.h-paper .p-block{padding-top:18px;display:flex;flex-direction:column;gap:8px}
.h-paper p,.h-paper ol{font-size:15px;line-height:1.55}
.h-paper ol{padding-left:20px;display:flex;flex-direction:column;gap:4px}
.h-redact{display:inline-block;height:.85em;vertical-align:-.05em;background:#0D1117;border-radius:1px}
.h-sample figcaption{font-size:14px;color:var(--text-2);max-width:52ch}

/* ---------- writing and rooms ---------- */
.h-log{display:grid;grid-template-columns:72px minmax(0,1fr);gap:16px;padding:18px 0;border-top:1px solid var(--h-rule);color:var(--text)}
.h-log:hover h3{color:var(--accent)}
.h-log .h-meta{font-family:var(--mono);font-size:13px;color:var(--text-2)}
.h-log h3{font-size:17px;line-height:1.3}
.h-log p{font-size:14px;color:var(--text-2)}
.h-logs{border-bottom:1px solid var(--h-rule)}
.h-col{display:flex;flex-direction:column;gap:20px}
.h-col h2{font-size:26px}

/* ---------- FAQ: same markup and copy as before, so it still matches the schema ---------- */
body.home .faq-list details{border:0;border-top:1px solid var(--h-rule);border-radius:0;background:transparent;margin:0}
body.home .faq-list details:last-child{border-bottom:1px solid var(--h-rule)}
body.home .faq-list summary{padding:20px 0;font-size:18px;min-height:64px}
body.home .faq-list details[open] summary{border-bottom:0}
body.home .faq-list .ans{padding:0 0 24px;color:var(--text-2);font-size:16px;max-width:68ch}

/* ---------- contact ---------- */
.h-contact{border-top:2px solid var(--accent)}
.h-contact .h-sheet{padding:32px}
.h-contact .h-email{display:flex;flex-direction:column;gap:4px;padding-top:8px}
.h-contact .h-email span:last-child{font-size:18px;font-weight:600;user-select:all;overflow-wrap:anywhere}
body.home .diag-form{background:transparent;border:0;padding:0}
body.home .diag-form .field label{font-family:var(--body);font-size:14px;font-weight:500;letter-spacing:0;text-transform:none;color:var(--text)}
body.home .diag-form .field input,body.home .diag-form .field select,body.home .diag-form .field textarea{background:#0D1518;border-color:var(--h-rule-band);border-radius:8px;min-height:48px}
body.home .h-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:20px}
body.home .h-form-grid .field{min-width:0}

/* ---------- responsive ---------- */
@media (max-width:900px){
  body.home section{padding:64px 0}
  .h-hero{padding:112px 0 20px}
  .h-hero-grid,.h-two,.h-svc-cols,.h-base{grid-template-columns:minmax(0,1fr)}
  .h-hero-grid{gap:48px}
  .h-ledger{transform:translateY(56px)}
  .h-after-lift{padding-top:120px !important}
  .h-band::before{-webkit-mask-image:radial-gradient(ellipse 90% 55% at 50% 72%,#000 0%,transparent 80%);mask-image:radial-gradient(ellipse 90% 55% at 50% 72%,#000 0%,transparent 80%)}
  .h-dims,.h-ladder{grid-template-columns:minmax(0,1fr)}
  .h-ladder,.h-proof{padding-left:20px;padding-right:20px}
  .h-rung{padding:28px 0}
  .h-rung+.h-rung{padding-left:0;border-left:0;border-top:1px solid var(--h-rule)}
  .h-proof-row{grid-template-columns:minmax(0,1fr);gap:8px}
  .h-two{gap:48px}
}
@media (max-width:560px){
  body.home .h-form-grid,.h-svc{grid-template-columns:minmax(0,1fr)}
  .h-svc{gap:4px}
  .h-base{padding:24px 20px}
  .h-contact .h-sheet{padding:24px 20px}
  .h-paper{padding:22px 20px 26px}
  .h-paper .p-scores{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (prefers-reduced-motion: reduce){
  .h-ledger.h-intro .h-seg.is-on span,.h-ledger.h-intro .h-row.is-leak,.h-ledger.h-intro .h-row.is-leak .h-chip{animation:none}
  .h-seg span{transition:none}
}
@media (prefers-reduced-transparency: reduce){
  body.home nav{background:var(--band);backdrop-filter:none;-webkit-backdrop-filter:none}
}
body.home #method,body.home #talk{scroll-margin-top:90px}
/* Decorative overhangs (instrument glow, the paper stack) must never widen the page. */
.h-hero,#about{overflow-x:clip}