/* =========================================================
   ORTIQA — Metodo · carosello orizzontale pinnato
   Scroll verticale = le card scorrono in orizzontale mentre
   la sezione resta agganciata (sticky) a schermo.
   Fallback: su mobile / reduced-motion le slide si impilano.
   ========================================================= */

.method{padding:0;position:relative;--m-red:#B23124}

/* ---- PIN mechanics ---- */
/* altezza totale = 1 schermo + (n-1) tratti di scroll → definisce
   quanta strada di scroll serve per attraversare tutte le slide. */
.method-pin{position:relative;height:calc(100vh + (var(--n, 4) - 1) * 88vh)}
.method-viewport{
  position:sticky;top:0;height:100vh;overflow:hidden;
  display:flex;flex-direction:column;
}

/* pinned top bar: kicker + progress rail (sempre visibile durante il carosello) */
.method-top{
  flex:none;position:relative;z-index:4;
  padding:clamp(84px,11vh,116px) clamp(20px,4vw,54px) 0;
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
  max-width:calc(var(--container) + 108px);margin:0 auto;width:100%;
}
.method-top .kicker{display:flex;align-items:center;gap:10px}
.method-top .kicker::before{content:"";width:22px;height:1.5px;background:var(--brand);display:inline-block}

.method-nav{display:flex;align-items:center;gap:6px}
.method-nav .mstep{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);background:none;padding:8px 4px;transition:color .35s var(--ease);
}
.method-nav .mstep .mi{font-variant-numeric:tabular-nums;opacity:.7;transition:opacity .35s}
.method-nav .mstep .mbar{width:22px;height:2px;border-radius:2px;background:var(--line);transition:background .4s var(--ease), width .4s var(--ease)}
.method-nav .mstep .mlab{display:none}
.method-nav .mstep.active .mi{opacity:1;color:var(--m-red);font-weight:600}
.method-nav .mstep.active .mbar{background:var(--m-red);width:48px}
.method-nav .mstep.active .mlab{display:inline;color:var(--ink)}
/* i passi già attraversati restano rossi tenui, per un accento che "scorre" */
.method-nav .mstep.past .mi{color:color-mix(in oklab, var(--m-red) 60%, var(--muted))}
.method-nav .mstep.past .mbar{background:color-mix(in oklab, var(--m-red) 45%, var(--line))}
.method-nav .mstep:hover .mi{color:var(--m-red)}
@media (max-width:640px){ .method-nav .mstep .mbar{width:16px} .method-nav .mstep.active .mbar{width:30px} }

/* stage that clips the horizontal track */
.method-stage{flex:1;position:relative;overflow:hidden}
.method-track{
  position:absolute;inset:0;display:flex;align-items:center;z-index:1;
  will-change:transform;transform:translate3d(0,0,0);
}

/* ---- interludi narrativi: frasi di connessione a metà transizione ---- */
.method-interludes{position:absolute;inset:0;z-index:3;pointer-events:none}
.m-interlude{
  position:absolute;top:50%;left:50%;
  width:min(460px,72vw);text-align:center;
  transform:translate(-50%,-50%);opacity:0;visibility:hidden;
  will-change:opacity,transform;
}
.mi-eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--m-red);
}
.mi-eyebrow::before,.mi-eyebrow::after{content:"";display:inline-block;width:18px;height:1.5px;
  background:var(--m-red);vertical-align:middle;margin:0 10px;opacity:.65}
.mi-phrase{
  font-family:var(--serif);font-size:clamp(24px,3vw,38px);line-height:1.14;
  color:var(--ink);margin-top:16px;letter-spacing:-.01em;text-wrap:balance;
}
.mi-phrase em{font-style:italic;color:var(--brand)}
.m-interlude[data-gap="2"] .mi-phrase em{color:#A9802F}
/* smooth glide when jumping via the progress rail */
.method-track.glide{transition:transform .7s var(--ease)}

.mslide{
  flex:0 0 100vw;height:100%;
  display:flex;align-items:center;justify-content:center;
  padding:clamp(10px,2vh,24px) clamp(20px,4vw,54px) clamp(20px,3vh,32px);
}

/* ---------- The big card ---------- */
.mcard{
  --acc:var(--brand);
  position:relative;width:100%;max-width:var(--container);
  height:min(74vh,660px);
  background:var(--surface);border:1px solid var(--line-2);border-radius:28px;
  box-shadow:var(--shadow-lg);
  overflow:hidden;
  display:grid;
  /* profondità gestita da JS (scale + opacity in base alla distanza dal centro) */
  will-change:transform, opacity;transform-origin:center center;
}
.mcard::before{ /* top hairline accent */
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg, var(--acc), color-mix(in oklab, var(--acc) 30%, transparent));
  opacity:.9;z-index:3;
}
.mcard--growth{--acc:#A9802F}
.mcard--priora{background:color-mix(in oklab, var(--brand) 6%, var(--surface))}

/* giant ghost index watermark */
.mcard .m-ghost{
  position:absolute;right:clamp(-6px,-.5vw,0px);bottom:clamp(-24px,-4vh,-10px);
  font-family:var(--serif);font-weight:600;line-height:.8;
  font-size:clamp(180px,32vh,340px);letter-spacing:-.04em;
  color:color-mix(in oklab, var(--acc) 11%, transparent);
  pointer-events:none;user-select:none;z-index:0;
}

.mcard-inner{
  position:relative;z-index:2;height:100%;
  padding:clamp(28px,3.6vw,58px);
  display:grid;gap:clamp(26px,4vw,60px);
  grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);
  align-items:center;
}

/* left column — headline block */
.m-head .m-kick{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--acc);display:inline-flex;align-items:center;gap:9px;
}
.m-head .m-kick b{color:var(--ink);font-weight:600}
.m-title{
  font-family:var(--serif);color:var(--ink);font-weight:600;letter-spacing:-.02em;line-height:1.02;
  font-size:clamp(34px,4.6vw,60px);margin:16px 0 0;text-wrap:balance;
}
.m-badge{
  display:inline-flex;align-items:center;gap:8px;margin-top:20px;
  font-family:var(--mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;
  color:color-mix(in oklab, var(--acc) 78%, var(--ink));
  background:color-mix(in oklab, var(--acc) 14%, var(--surface));
  border:1px solid color-mix(in oklab, var(--acc) 26%, transparent);
  padding:7px 13px;border-radius:999px;
}
.m-desc{margin-top:22px;font-size:clamp(15.5px,1.5vw,17.5px);line-height:1.6;color:var(--body);max-width:46ch}
.m-desc b{color:var(--ink);font-weight:600}

/* ---- marker highlight: evidenzia le parole chiave (tratto evidenziatore) ---- */
.mk{
  background-image:linear-gradient(transparent 58%, color-mix(in oklab, var(--acc) 34%, transparent) 0);
  padding:0 .05em;border-radius:1px;color:var(--ink);font-weight:600;
  box-decoration-break:clone;-webkit-box-decoration-break:clone;
}
.mk-red{
  background-image:linear-gradient(transparent 58%, color-mix(in oklab, var(--m-red) 28%, transparent) 0);
  padding:0 .05em;border-radius:1px;color:var(--m-red);font-weight:600;
  box-decoration-break:clone;-webkit-box-decoration-break:clone;
}
/* marker anche dentro un titolo grande */
.m-title .mk{background-image:linear-gradient(transparent 62%, color-mix(in oklab, var(--acc) 32%, transparent) 0);font-weight:inherit}

/* right column wrapper (proc label + steps) */
.m-body{min-width:0;align-self:center}
.m-proc{
  display:inline-flex;align-items:center;gap:9px;margin-bottom:clamp(16px,2.2vh,26px);
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
}
.m-proc::before{content:"";width:20px;height:1.5px;background:color-mix(in oklab, var(--acc) 70%, transparent)}
.m-steps{display:flex;flex-direction:column;gap:clamp(14px,2vh,22px)}
.m-step{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start}
.m-step .n{
  flex:none;width:34px;height:34px;border-radius:50%;
  background:color-mix(in oklab, var(--acc) 16%, var(--surface));
  color:color-mix(in oklab, var(--acc) 82%, var(--ink));
  border:1px solid color-mix(in oklab, var(--acc) 30%, transparent);
  display:grid;place-items:center;font-family:var(--mono);font-size:14px;font-weight:500;
}
.m-step h4{font-family:var(--serif);font-weight:600;font-size:clamp(17px,1.7vw,20px);color:var(--ink);margin:4px 0 5px;letter-spacing:-.01em}
.m-step p{font-size:14.5px;color:var(--body);line-height:1.55;margin:0;max-width:52ch}
.m-step p b{color:var(--ink);font-weight:600}
.m-step .m-chip{
  display:inline-flex;align-items:center;gap:7px;margin-top:9px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--acc);background:color-mix(in oklab, var(--acc) 10%, transparent);
  padding:5px 10px;border-radius:999px;
}
.m-step .m-chip svg{width:12px;height:12px;stroke:currentColor;stroke-width:2;fill:none}

/* connective line between step numbers */
.m-steps.m-flow .m-step{position:relative}
.m-steps.m-flow .m-step:not(:last-child)::before{
  content:"";position:absolute;left:16px;top:38px;bottom:-16px;width:1px;
  background:linear-gradient(var(--line), transparent);
}

/* ---------- Slide 1 · intro / fork ---------- */
.mcard--intro .mcard-inner{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}
.m-fork{display:flex;flex-direction:column;gap:14px}
.m-fork-tile{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;
  padding:20px 22px;border-radius:18px;
  background:var(--surface);border:1px solid var(--line-2);
  box-shadow:var(--shadow-sm);transition:transform .3s var(--ease), box-shadow .3s;
}
.m-fork-tile:hover{transform:translateX(4px);box-shadow:var(--shadow)}
.m-fork-tile .fnum{font-family:var(--serif);font-size:30px;font-weight:600;line-height:1;color:color-mix(in oklab, var(--tacc) 65%, var(--ink))}
.m-fork-tile.b-build{--tacc:var(--brand)}
.m-fork-tile.b-growth{--tacc:#A9802F}
.m-fork-tile .ft-name{font-family:var(--serif);font-size:21px;font-weight:600;color:var(--ink);letter-spacing:-.01em}
.m-fork-tile .ft-meta{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:4px}
.m-fork-tile .ft-arr{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;color:var(--tacc)}
.m-fork-tile .ft-arr svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none}
.m-hint{
  display:inline-flex;align-items:center;gap:9px;margin-top:6px;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);
}
.m-hint svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.8;fill:none;animation:mHint 1.8s var(--ease) infinite}
@keyframes mHint{0%,100%{transform:translateX(0);opacity:.5}50%{transform:translateX(5px);opacity:1}}

/* ---------- Slide 3 · PRIORA ---------- */
.mcard--priora .mcard-inner{grid-template-columns:minmax(240px,340px) minmax(0,1fr);gap:clamp(24px,3vw,44px)}
.mcard--priora .m-title{font-size:clamp(30px,4vw,50px)}
.m-priora-col{display:flex;flex-direction:column;min-width:0}
.m-priora-chart{position:relative;background:var(--surface);border:1px solid var(--line-2);border-radius:16px;padding:14px 12px 10px;box-shadow:var(--shadow-sm)}
.m-priora-chart .priora-canvas{position:relative}
.m-priora-chart .priora-svg{display:block;width:100%;height:auto;max-height:min(52vh,460px)}
/* punti del grafico: nascosti finché renderPriora non aggiunge .animate */
.m-priora-chart.animate .priora-dot{animation:prioraIn .5s var(--ease) forwards;animation-delay:var(--d,0ms);opacity:1}
.m-priora-legend{display:flex;flex-wrap:wrap;gap:7px 14px;margin-top:18px}
.m-priora-legend .lg{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--body)}
.m-priora-legend .lg i{width:8px;height:8px;border-radius:50%;flex:none}
.m-priora-note{margin-top:12px;font-family:var(--mono);font-size:10px;letter-spacing:.04em;color:var(--muted)}

/* entrance: l'intero stage sfuma dolcemente all'arrivo (niente animazioni per-card,
   così non entrano in conflitto con transform/opacity gestiti da JS) */
.method-stage{opacity:0;transition:opacity .7s var(--ease)}
.method.in-view .method-stage{opacity:1}
.method.method--static .method-stage{opacity:1}

/* =========================================================
   STATIC FALLBACK · mobile & reduced-motion (no pin)
   ========================================================= */
.method.method--static .method-pin{height:auto}
.method.method--static .method-viewport{position:static;height:auto;display:block;overflow:visible}
.method.method--static .method-top{padding-top:0;margin-bottom:26px}
.method.method--static .method-nav{display:none}
.method.method--static .method-stage{overflow:visible}
.method.method--static .method-interludes{display:none}
.method.method--static .method-track{position:static;transform:none!important;flex-direction:column;gap:20px;align-items:stretch}
.method.method--static .mslide{flex:auto;height:auto;padding:0}
.method.method--static .mcard{height:auto;box-shadow:var(--shadow)}
.method.method--static .mcard-inner{padding:clamp(26px,6vw,40px)}
.method.method--static .m-ghost{display:none}
.method.method--static .mcard{transform:none!important;opacity:1!important}

@media (max-width:960px){
  .method-top{padding-top:clamp(76px,10vh,100px)}
  .mcard-inner{grid-template-columns:1fr;gap:24px;align-content:center}
  /* override esplicito: i selettori piu specifici delle slide devono collassare */
  .mcard--intro .mcard-inner,
  .mcard--priora .mcard-inner{grid-template-columns:1fr}
  .m-desc{max-width:60ch}
  .m-hint{display:none} /* "scorri" non ha senso nel fallback statico impilato */
}
@media (max-width:960px){
  /* on narrow screens the pin is disabled by JS → static layout applies */
  .method--static .m-priora-chart{overflow-x:auto}
  .method--static .m-priora-chart .priora-svg{min-width:560px;max-height:none}
}

@media (prefers-reduced-motion:reduce){
  .method-track{transition:none}
  .m-hint svg{animation:none}
  .method-stage{transition:none}
}