/* ============================================================
   FRAME V2 — interop.css
   Section 1.5 · "We solve interoperability."
   An any-to-any settlement interchange: any form of value enters,
   passes through the Frame Rule Engine, and settles as any other.
   Desktop = horizontal interchange; narrow = vertical flow (the
   metaphor rotates 90deg so it stays explainable on small screens).
   Paired with js/interop-flow.js. All classes namespaced .if-* and
   scoped under .iflow to avoid collisions with the rest of the site.
   Reuses the global --frame-* and --font-* tokens.
   ============================================================ */

/* self-sufficient box model + overflow safety (do not depend on the site reset) */
.iflow, .iflow *, .iflow *::before, .iflow *::after{ box-sizing:border-box; }
.interop{ overflow-x:clip; }
.iflow{ max-width:100%; }
.if-grid3, .if-stack, .if-readout, .if-presets, .if-frame{ min-width:0; }
.if-readout > *, .if-presets > *{ min-width:0; }
.if-svg{ overflow:hidden; }

.interop__statement{
  font-family:var(--font-display);font-weight:800;text-transform:uppercase;
  letter-spacing:-.005em;line-height:.95;color:var(--frame-ironworks);
  font-size:clamp(2.4rem,5.5vw,4.2rem);max-width:16ch;margin:.2em 0 0;
}
.interop__lede{
  margin-top:18px;max-width:60ch;color:var(--frame-foundry);
  font-size:clamp(17px,1.5vw,20px);line-height:1.55;
}
.interop__lede b{color:var(--frame-ironworks);font-weight:600;}
/* ---------- the diagram ---------- */
.iflow{position:relative;margin-top:clamp(34px,4.5vw,56px);}
.if-grid3{position:relative;z-index:2;display:grid;grid-template-columns:1fr minmax(322px,368px) 1fr;align-items:center;gap:clamp(26px,5vw,68px);}
.if-svg{position:absolute;inset:0;z-index:1;pointer-events:none;}
.if-svg svg{width:100%;height:100%;overflow:visible;display:block;}
.if-sbase{fill:none;stroke:rgba(15,76,129,.20);stroke-width:1.5;}
.if-sactive{fill:none;stroke:var(--frame-deepwater);stroke-width:2.4;stroke-linecap:round;opacity:0;transition:opacity .35s ease;}

.if-collabel{font-family:var(--font-condensed);font-weight:600;font-size:13.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--frame-foundry);margin-bottom:16px;}
.if-collabel span{display:block;font-size:12px;letter-spacing:.16em;color:var(--frame-conduit);margin-top:3px;font-weight:500;}
.if-col.if-right .if-collabel{text-align:right;}
.if-stack{display:flex;flex-direction:column;gap:14px;}

.if-node{position:relative;display:flex;align-items:center;gap:13px;background:var(--frame-white);border:1px solid var(--frame-scaffold);padding:14px 16px;cursor:pointer;box-shadow:0 12px 30px rgba(15,76,129,.07);transition:border-color .3s,box-shadow .3s,transform .3s,opacity .3s;}
.if-col.if-right .if-node{flex-direction:row-reverse;text-align:right;}
.if-node__ico{flex:0 0 auto;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:rgba(15,76,129,.08);color:var(--frame-deepwater);transition:background .3s,color .3s;}
.if-ms{font-family:'Material Symbols Sharp';font-weight:normal;font-style:normal;line-height:1;letter-spacing:normal;text-transform:none;display:inline-block;white-space:nowrap;-webkit-font-feature-settings:'liga';font-feature-settings:'liga';-webkit-font-smoothing:antialiased;font-variation-settings:'FILL' 1;}
.if-node__ico .if-ms{font-size:25px;}
.if-node__txt{display:flex;flex-direction:column;gap:3px;min-width:0;}
.if-node__name{font-family:var(--font-display);font-weight:800;text-transform:uppercase;letter-spacing:.005em;font-size:21px;line-height:1;color:var(--frame-ironworks);}
.if-node__sub{font-family:var(--font-condensed);font-weight:500;font-size:13.5px;color:var(--frame-foundry);white-space:nowrap;}
.if-node.is-active{border-color:var(--frame-deepwater);box-shadow:0 16px 42px rgba(15,76,129,.22);transform:translateY(-1px);}
.if-node.is-active .if-node__ico{background:var(--frame-deepwater);color:#fff;}
.if-node.is-dim{opacity:.4;}
.if-node.landed{animation:if-pop .55s cubic-bezier(.34,1.56,.64,1);}
@keyframes if-pop{0%{transform:scale(1)}45%{transform:scale(1.045)}100%{transform:scale(1)}}
.if-node__badge{position:absolute;top:-9px;right:-9px;width:26px;height:26px;border-radius:50%;background:var(--frame-white);border:1.5px solid var(--frame-conduit);display:grid;place-items:center;color:var(--frame-deepwater);box-shadow:0 6px 16px rgba(15,76,129,.22);opacity:0;transform:scale(.4);transition:opacity .35s,transform .45s cubic-bezier(.34,1.56,.64,1);font-size:17px;}
.if-col.if-right .if-node__badge{right:auto;left:-9px;}
.if-node.verified .if-node__badge{opacity:1;transform:scale(1);}

.if-frame{position:relative;background:var(--frame-white);border:1.5px solid var(--frame-deepwater);box-shadow:0 30px 70px rgba(15,76,129,.18);padding:24px 22px 20px;transition:box-shadow .45s ease;}
.if-frame.is-processing{box-shadow:0 34px 90px rgba(15,76,129,.34),0 0 0 4px rgba(99,157,205,.20);}
.if-frame.settle-flash::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 60% at 50% 50%, rgba(99,157,205,.20), transparent 70%);animation:if-flash .5s ease;pointer-events:none;}
@keyframes if-flash{from{opacity:1}to{opacity:0}}
.if-frame__head{padding-bottom:15px;border-bottom:1px solid var(--frame-scaffold);margin-bottom:16px;display:flex;flex-direction:column;gap:10px;}
.if-frame__logo{color:var(--frame-deepwater);}
.if-frame__logo svg{height:26px;width:auto;display:block;}
.if-frame__sub{font-family:var(--font-condensed);font-weight:600;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--frame-conduit);}
.if-stages{display:flex;flex-direction:column;gap:8px;}
.if-stg{position:relative;display:flex;align-items:center;gap:12px;padding:11px 13px 11px 16px;background:var(--frame-clearspan);border:1px solid var(--frame-scaffold);overflow:hidden;transition:background .3s;}
.if-stg::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--frame-scaffold);transition:width .3s,background .3s,box-shadow .3s;}
.if-stg__ico{flex:0 0 auto;font-size:21px;color:var(--frame-foundry);transition:color .3s;font-variation-settings:'FILL' 0;}
.if-stg__txt{display:flex;flex-direction:column;gap:2px;min-width:0;}
.if-stg__h{font-family:var(--font-display);font-weight:800;text-transform:uppercase;letter-spacing:.01em;font-size:18px;line-height:1;color:var(--frame-ironworks);}
.if-stg__d{font-family:var(--font-condensed);font-weight:500;font-size:13.5px;color:var(--frame-foundry);}
.if-stg__chk{margin-left:auto;flex:0 0 auto;font-size:19px;color:var(--frame-conduit);opacity:0;transform:scale(.5);transition:opacity .3s,transform .35s cubic-bezier(.34,1.56,.64,1);}
.if-stg.active{background:rgba(15,76,129,.06);}
.if-stg.active::before{width:5px;background:var(--frame-conduit);box-shadow:0 0 14px rgba(99,157,205,.85);}
.if-stg.active .if-stg__ico{color:var(--frame-deepwater);font-variation-settings:'FILL' 1;}
.if-stg.active .if-stg__h{color:var(--frame-deepwater);}
.if-stg.active::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(99,157,205,.22),transparent);transform:translateX(-110%);animation:if-scan 1.05s ease-in-out;pointer-events:none;}
@keyframes if-scan{to{transform:translateX(110%)}}
.if-stg.done::before{background:var(--frame-conduit);}
.if-stg.done .if-stg__chk{opacity:1;transform:scale(1);}
.if-stg.done .if-stg__ico{color:var(--frame-deepwater);}
.if-frame__foot{margin-top:16px;font-size:13.5px;font-style:italic;color:var(--frame-foundry);line-height:1.45;}

#iflow-token{opacity:0;}
.if-tokring{transform-box:fill-box;transform-origin:center;animation:if-ring 1.1s ease-in-out infinite;}
@keyframes if-ring{0%,100%{transform:scale(.8);opacity:.55}50%{transform:scale(1.25);opacity:.15}}

.if-readout{position:relative;z-index:2;margin-top:clamp(32px,4vw,52px);border-top:1px solid var(--frame-scaffold);padding-top:24px;display:flex;flex-wrap:wrap;align-items:baseline;gap:13px 22px;}
.if-readout__tag{font-family:var(--font-condensed);font-weight:700;font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--frame-conduit);display:flex;align-items:center;gap:9px;}
.if-readout__tag::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--frame-deepwater);animation:if-blink 1.4s ease-in-out infinite;}
@keyframes if-blink{0%,100%{opacity:1}50%{opacity:.25}}
.if-readout__flow{font-family:var(--font-display);font-weight:800;text-transform:uppercase;font-size:clamp(22px,2.6vw,30px);line-height:1.02;color:var(--frame-ironworks);}
.if-readout__flow .if-arr{color:var(--frame-conduit);margin:0 .26em;}
.if-readout__amt{font-family:var(--font-condensed);font-weight:600;font-size:18px;color:var(--frame-deepwater);}
.if-readout__amt .if-arr{color:var(--frame-foundry);margin:0 .5em;}
.if-proof{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-condensed);font-weight:600;font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--frame-deepwater);background:var(--frame-white);border:1px solid var(--frame-conduit);padding:7px 13px;opacity:0;transform:translateY(8px) scale(.96);filter:blur(5px);transition:opacity .45s,transform .45s,filter .45s;}
.if-proof.show{opacity:1;transform:none;filter:none;}
.if-proof .if-ms{font-size:18px;color:var(--frame-conduit);}
.if-readout__note{flex-basis:100%;font-size:16px;color:var(--frame-foundry);line-height:1.5;margin-top:2px;}

.if-presets{position:relative;z-index:2;margin-top:24px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.if-presets__lab{font-family:var(--font-condensed);font-weight:600;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--frame-foundry);margin-right:6px;}
.if-preset{font-family:var(--font-condensed);font-weight:600;font-size:14.5px;color:var(--frame-deepwater);background:var(--frame-white);border:1px solid var(--frame-scaffold);padding:9px 14px;cursor:pointer;transition:all .25s;white-space:nowrap;}
.if-preset:hover{border-color:var(--frame-conduit);}
.if-preset.on{background:var(--frame-deepwater);color:#fff;border-color:var(--frame-deepwater);}

/* ---------- vertical / mobile mode (JS toggles .vmode on .iflow) ---------- */
@media (max-width:860px){ .if-grid3{grid-template-columns:1fr;} }
.iflow.vmode .if-grid3{grid-template-columns:1fr;gap:0;}
.iflow.vmode .if-col.if-left{margin-bottom:58px;}
.iflow.vmode .if-col.if-right{margin-top:58px;}
.iflow.vmode .if-collabel{text-align:center;margin-bottom:14px;}
.iflow.vmode .if-col.if-right .if-collabel{text-align:center;}
.iflow.vmode .if-stack{flex-direction:row;flex-wrap:wrap;justify-content:center;gap:8px;max-width:360px;margin:0 auto;}
.iflow.vmode .if-col.if-right .if-node{flex-direction:row;text-align:left;}
.iflow.vmode .if-node{padding:9px 11px;gap:8px;max-width:100%;}
.iflow.vmode .if-node__ico{width:32px;height:32px;}
.iflow.vmode .if-node__ico .if-ms{font-size:18px;}
.iflow.vmode .if-node__name{font-size:16px;letter-spacing:.01em;}
.iflow.vmode .if-node__sub{display:none;}
.iflow.vmode .if-col.if-right .if-node__badge{right:-9px;left:auto;}
.iflow.vmode .if-frame{width:100%;max-width:460px;margin:0 auto;}

@media (prefers-reduced-motion:reduce){
  .if-tokring{animation:none;}
  .if-readout__tag::before{animation:none;}
}