/* Platform page live hero. Self-contained: every rule is scoped to .plh. */
.plh{
  --plh-ink:var(--paper);
  --plh-body:var(--mist-400);
  --plh-muted:#8A90A2;
  --plh-faint:#B4B9C6;
  --plh-line:var(--ink-750);
  --plh-panel:#FFFFFF;
  --plh-canvas:#F6F7FB;
  --plh-brand:var(--brass-400);
  --plh-brand-soft:#EEF1FE;
  --plh-green:#1F8A5B;
  --plh-green-soft:#E8F6EE;
}
.plh *,.plh *::before,.plh *::after{box-sizing:border-box;}

/* ---------- Hero text ---------- */
.plh-intro{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:end;margin-bottom:44px;}
.plh .plh-title{font-family:var(--font-display);font-weight:600;font-size:54px;line-height:1.04;letter-spacing:-.02em;text-wrap:balance;color:var(--plh-ink);margin:0;max-width:none;}
.plh .plh-lead{color:var(--plh-body);font-size:17px;line-height:1.6;max-width:460px;padding-bottom:6px;margin:0;}
.plh .plh-intro .eyebrow{margin-bottom:18px;}

/* ---------- App canvas ---------- */
.plh-app{position:relative;background:var(--plh-canvas);border:1px solid var(--plh-line);border-radius:20px;box-shadow:0 40px 80px -40px rgba(30,40,90,.35),0 2px 8px rgba(30,40,90,.05);overflow:hidden;font-family:var(--font-body);color:var(--plh-ink);}
.plh-app::before{content:"";position:absolute;top:-220px;left:50%;width:760px;height:440px;transform:translateX(-50%);background:radial-gradient(closest-side,rgba(59,87,232,.12),transparent);pointer-events:none;}
.plh-bar{position:relative;display:flex;align-items:center;gap:14px;padding:12px 18px;border-bottom:1px solid var(--plh-line);background:rgba(255,255,255,.7);}
.plh-dots{display:flex;gap:6px;flex:none;}
.plh-dots i{width:10px;height:10px;border-radius:50%;background:#E1E4EC;}
.plh-ask{flex:1;min-width:0;max-width:520px;margin:0 auto;display:flex;align-items:center;gap:8px;background:#FFFFFF;border:1px solid var(--plh-line);border-radius:99px;padding:7px 8px 7px 14px;font-size:13px;color:var(--plh-muted);}
.plh-ask>svg{width:14px;height:14px;color:var(--plh-muted);flex:none;}
.plh-q{color:var(--plh-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;}
.plh-caret{display:inline-block;width:1.5px;height:15px;background:var(--plh-brand);animation:plh-blink 1s steps(1) infinite;flex:none;}
@keyframes plh-blink{50%{opacity:0;}}
.plh-go{margin-left:auto;width:24px;height:24px;border-radius:50%;background:var(--plh-brand);display:grid;place-items:center;flex:none;}
.plh-go svg{color:#FFFFFF;width:11px;height:11px;}
.plh-live{display:flex;align-items:center;gap:6px;color:var(--plh-green);font-size:12px;font-weight:500;flex:none;}
.plh-pulse{width:7px;height:7px;border-radius:50%;background:currentColor;animation:plh-pulse 2s infinite;}
@keyframes plh-pulse{0%{box-shadow:0 0 0 0 rgba(31,138,91,.45);}70%{box-shadow:0 0 0 7px rgba(31,138,91,0);}100%{box-shadow:0 0 0 0 rgba(31,138,91,0);}}

.plh-grid{position:relative;display:grid;grid-template-columns:220px 230px 1fr;gap:64px;padding:24px 24px 28px;align-items:start;}
.plh-col-title{font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--plh-muted);margin-bottom:10px;display:flex;justify-content:space-between;}
.plh-col-title .plh-n{font-family:var(--font-mono);font-weight:500;letter-spacing:0;color:var(--plh-brand);}

.plh-wires{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible;}
.plh-wire{fill:none;stroke:#D6DAE6;stroke-width:1.5;transition:stroke .4s;}
.plh-wire.on{stroke:rgba(59,87,232,.5);stroke-dasharray:4 5;animation:plh-flow 1s linear infinite;}
@keyframes plh-flow{to{stroke-dashoffset:-18;}}
.plh-packet{fill:var(--plh-brand);}

/* ---------- Sources ---------- */
.plh-src{display:grid;gap:8px;}
.plh-s{background:var(--plh-panel);border:1px solid var(--plh-line);border-radius:12px;padding:10px 12px;display:grid;grid-template-columns:28px 1fr auto;gap:10px;align-items:center;transition:border-color .3s,box-shadow .3s,opacity .3s;}
.plh-s .plh-ic{width:28px;height:28px;border-radius:8px;background:#F1F3F8;color:var(--plh-body);display:grid;place-items:center;transition:.3s;}
.plh-s .plh-ic svg{width:15px;height:15px;}
.plh-s b{display:block;font-size:13px;font-weight:600;color:var(--plh-ink);}
.plh-s small{font-size:11px;color:var(--plh-muted);}
.plh-s .plh-ref{font-family:var(--font-mono);font-size:10px;color:var(--plh-brand);background:var(--plh-brand-soft);border-radius:4px;padding:1px 5px;opacity:0;transition:.3s;}
.plh-s.on{border-color:rgba(59,87,232,.45);box-shadow:0 0 0 3px rgba(59,87,232,.08);}
.plh-s.on .plh-ic{background:var(--plh-brand-soft);color:var(--plh-brand);}
.plh-s.on .plh-ref{opacity:1;}
.plh-s.dim{opacity:.5;}
.plh-s.hl{box-shadow:0 0 0 3px rgba(59,87,232,.28);}
.plh-note{margin-top:10px;display:flex;align-items:center;gap:6px;font-size:11px;color:var(--plh-muted);}
.plh-note svg{width:12px;height:12px;}

/* ---------- Engine ---------- */
.plh-engine{background:var(--plh-panel);border:1px solid var(--plh-line);border-radius:14px;overflow:hidden;}
.plh-engine-head{display:flex;align-items:center;gap:8px;padding:11px 14px;border-bottom:1px solid var(--plh-line);font-size:13px;font-weight:600;}
.plh-logo{width:22px;height:22px;flex:none;display:block;}
.plh-state{margin-left:auto;font-size:11px;font-weight:500;color:var(--plh-muted);}
.plh-state.busy{color:var(--plh-brand);}
.plh-state.done{color:var(--plh-green);}
.plh-stages{padding:8px 14px 12px;display:grid;gap:2px;}
.plh-stage{display:grid;grid-template-columns:18px 1fr;gap:10px;align-items:center;padding:6px 0;color:var(--plh-faint);transition:color .3s;position:relative;}
.plh-stage::before{content:"";position:absolute;left:8.5px;top:22px;bottom:-10px;width:1px;background:var(--plh-line);}
.plh-stage:last-child::before{display:none;}
.plh-stage .plh-st{width:18px;height:18px;border-radius:50%;border:1.5px solid #D6DAE6;background:#FFFFFF;display:grid;place-items:center;position:relative;z-index:1;transition:.3s;}
.plh-stage b{display:block;font-size:12.5px;font-weight:600;}
.plh-stage small{display:block;font-size:10.5px;margin-top:1px;}
.plh-stage.active{color:var(--plh-ink);}
.plh-stage.active small{color:var(--plh-muted);}
.plh-stage.active .plh-st{border-color:var(--plh-brand);border-right-color:transparent;animation:plh-spin .8s linear infinite;}
.plh-stage.done{color:var(--plh-body);}
.plh-stage.done small{color:var(--plh-muted);}
.plh-stage.done .plh-st{border-color:var(--plh-green);background:var(--plh-green);}
.plh-stage.done .plh-st::after{content:"";width:6px;height:3px;border-left:1.5px solid #FFFFFF;border-bottom:1.5px solid #FFFFFF;transform:rotate(-45deg) translate(0,-1px);}
@keyframes plh-spin{to{transform:rotate(360deg);}}

/* ---------- Answer ---------- */
.plh-answer{position:relative;background:var(--plh-panel);border:1px solid var(--plh-line);border-radius:14px;padding:16px 18px;}
.plh-answer>*{opacity:0;transform:translateY(6px);transition:opacity .5s,transform .5s;}
.plh-answer.show>*{opacity:1;transform:none;}
.plh-answer.show>*:nth-child(2){transition-delay:.08s;}
.plh-answer.show>*:nth-child(3){transition-delay:.16s;}
.plh-answer.show>*:nth-child(4){transition-delay:.24s;}
.plh-answer.show>*:nth-child(5){transition-delay:.32s;}
.plh-answer::before{content:"Your answer will appear here";position:absolute;inset:0;display:grid;place-items:center;font-size:12px;color:var(--plh-faint);opacity:1;transition:opacity .3s;transform:none;}
.plh-answer.busy::before{content:"";inset:18px;border-radius:6px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.75),transparent) 0 0/40% 100% no-repeat,linear-gradient(#EEF0F5 0 0) 0 0/34% 10px no-repeat,linear-gradient(#EEF0F5 0 0) 0 24px/80% 16px no-repeat,linear-gradient(#EEF0F5 0 0) 0 46px/55% 16px no-repeat,linear-gradient(#F2F4F8 0 0) 0 78px/100% 64px no-repeat,linear-gradient(#F2F4F8 0 0) 0 160px/70% 8px no-repeat,linear-gradient(#F2F4F8 0 0) 0 178px/60% 8px no-repeat,linear-gradient(#F2F4F8 0 0) 0 196px/65% 8px no-repeat;animation:plh-shimmer 1.4s linear infinite;}
.plh-answer.show::before{opacity:0;}
@keyframes plh-shimmer{from{background-position:-40% 0,0 0,0 24px,0 46px,0 78px,0 160px,0 178px,0 196px;}to{background-position:140% 0,0 0,0 24px,0 46px,0 78px,0 160px,0 178px,0 196px;}}

.plh-verified{display:flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;color:var(--plh-brand);}
.plh-conf{margin-left:auto;font-weight:500;color:var(--plh-green);background:var(--plh-green-soft);padding:2px 8px;border-radius:99px;}
.plh-txt{margin-top:12px;display:grid;gap:8px;}
.plh-ln{display:flex;align-items:center;gap:6px;}
.plh-ln i{display:block;height:10px;border-radius:99px;background:#2B3150;}
.plh-ln.big i{height:13px;}
.plh-ln.soft i{background:#DFE2EA;height:9px;}
.plh-c{font-family:var(--font-mono);font-size:9.5px;font-style:normal;color:var(--plh-brand);background:var(--plh-brand-soft);border-radius:4px;padding:1px 5px;cursor:pointer;line-height:1.2;flex:none;}
.plh-chart{margin-top:14px;display:flex;align-items:flex-end;gap:8px;height:70px;padding:0 2px;border-bottom:1px solid var(--plh-line);}
.plh-chart i{flex:1;height:0;border-radius:4px 4px 0 0;background:#C9D1F7;transition:height .8s cubic-bezier(.2,.8,.2,1);}
.plh-chart i.key{background:var(--plh-brand);}
.plh-sources{margin-top:14px;display:grid;gap:4px;}
.plh-sources .plh-lbl{font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--plh-muted);margin-bottom:2px;}
.plh-cite{display:grid;grid-template-columns:22px 1fr auto;gap:8px;align-items:center;font-size:12px;color:var(--plh-body);padding:4px 6px;margin:0 -6px;border-radius:6px;transition:background .2s;cursor:pointer;}
.plh-cite b{color:var(--plh-ink);font-weight:600;}
.plh-cite .plh-n{font-family:var(--font-mono);font-size:10px;color:var(--plh-brand);}
.plh-cite .plh-fresh{font-size:10.5px;color:var(--plh-muted);}
.plh-cite.hl{background:var(--plh-brand-soft);}
.plh-actions{margin-top:12px;display:flex;gap:6px;flex-wrap:wrap;}
.plh-actions span{font-size:11px;font-weight:500;color:var(--plh-body);border:1px solid var(--plh-line);border-radius:99px;padding:4px 10px;background:#FFFFFF;}
.plh-actions span:first-child{color:var(--plh-brand);border-color:rgba(59,87,232,.35);background:var(--plh-brand-soft);}

/* ---------- Footer ---------- */
.plh-status{position:relative;display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center;padding:12px 18px;border-top:1px solid var(--plh-line);background:rgba(255,255,255,.7);}
.plh-built{font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--plh-muted);margin-right:4px;}
.plh-chip{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:500;color:#2A3AA8;border:1px solid rgba(59,87,232,.28);background:var(--plh-brand-soft);border-radius:99px;padding:4px 12px 4px 4px;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s,background .35s;max-width:100%;}
.plh-chip .plh-ci{width:20px;height:20px;border-radius:50%;background:var(--plh-brand);display:grid;place-items:center;flex:none;}
.plh-chip svg{width:11px;height:11px;color:#FFFFFF;}
.plh-chip b{color:var(--plh-ink);font-weight:600;}
.plh-chip.pop{transform:translateY(-2px);background:#E3E8FF;box-shadow:0 6px 16px -6px rgba(59,87,232,.45),0 0 0 3px rgba(59,87,232,.12);}
.plh-log{margin-left:auto;font-family:var(--font-mono);font-size:11px;color:var(--plh-muted);transition:color .3s;}
.plh-log.flash{color:var(--plh-green);}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .plh-intro{grid-template-columns:1fr;gap:16px;}
  .plh-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .plh-answer-col{grid-column:1 / -1;}
  .plh-wires{display:none;}
}
.plh-steplabel{display:none;}
@media (max-width:640px){
  .plh .plh-title{font-size:38px;}
  .plh-grid{grid-template-columns:1fr;padding:14px;gap:12px;}
  /* Phones: just the question, a one-line progress strip and the answer */
  .plh-data-col,.plh-status,.plh-engine-col>.plh-col-title{display:none;}
  .plh-engine-head{padding:10px 12px;}
  .plh-stages{display:flex;justify-content:space-between;align-items:center;padding:12px 14px 4px;gap:0;position:relative;}
  .plh-stages::before{content:"";position:absolute;left:23px;right:23px;top:21px;height:1px;background:var(--plh-line);}
  .plh-stage{display:block;padding:0;}
  .plh-stage::before,.plh-stage>div{display:none;}
  .plh-verified{flex-wrap:wrap;row-gap:8px;}
  .plh-conf{margin-left:0;}
  .plh-steplabel{display:block;padding:2px 14px 12px;font-size:12px;font-weight:500;color:var(--plh-body);text-align:center;}
  .plh-bar{padding:12px 14px;gap:10px;}
  .plh-live{display:none;}
  .plh-log{margin-left:0;}
}
@media (prefers-reduced-motion:reduce){
  .plh *,.plh *::before,.plh *::after{animation:none!important;transition:none!important;}
}