/* =========================================================
   EL Studio — Human check (anti-spam) for every form
   Calculator · Slide-to-fit · Circuit tap
   ========================================================= */

/* honeypot: invisible to people, tempting to bots */
.eg-hp{position:absolute !important;left:-9999px !important;top:auto;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none;}

/* inline status line under a form */
.eg-msg{font-size:13px;line-height:1.5;color:var(--blue-light,#1d4ed8);min-height:0;margin:-4px 0 12px;}
.eg-msg:empty{display:none;}
.eg-msg.bad{color:#dc2626;}

/* ---------- overlay + card ---------- */
.eg{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:20px;
  background:rgba(8,11,18,.58);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  opacity:0;transition:opacity .3s ease;}
.eg.in{opacity:1;}
.eg *{box-sizing:border-box;}
.eg-card{position:relative;width:min(100%,430px);max-height:calc(100vh - 40px);max-height:calc(100dvh - 40px);overflow:auto;
  background:#fff;color:#121212;border-radius:22px;padding:26px 24px 18px;font-family:'Inter',sans-serif;
  box-shadow:0 40px 90px rgba(8,11,18,.4);
  transform:translateY(26px) scale(.95);transition:transform .5s cubic-bezier(.2,.8,.2,1);outline:none;}
.eg.in .eg-card{transform:none;}
.eg-card.shake{animation:egShake .45s ease;}
@keyframes egShake{0%,100%{transform:none}20%{transform:translateX(-9px)}40%{transform:translateX(8px)}60%{transform:translateX(-5px)}80%{transform:translateX(3px)}}

.eg-x{position:absolute;right:14px;top:14px;width:36px;height:36px;border-radius:50%;border:1px solid rgba(15,15,20,.1);
  background:#fff;color:#121212;font-size:14px;cursor:pointer;transition:.25s ease;}
.eg-x:hover{background:var(--blue,#2563eb);border-color:var(--blue,#2563eb);color:#fff;transform:rotate(90deg);}

.eg-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#5c5c5c;margin-bottom:10px;}
.eg-eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--blue,#2563eb);position:relative;}
.eg-eyebrow i::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:1px solid var(--blue,#2563eb);animation:egPulse 2s ease-out infinite;}
@keyframes egPulse{0%{transform:scale(.6);opacity:.9}100%{transform:scale(1.7);opacity:0}}
.eg-title{font-family:'Space Grotesk',sans-serif;font-size:26px;line-height:1.1;letter-spacing:-.03em;font-weight:600;padding-right:40px;margin:0;}
.eg-sub{font-size:15.5px;line-height:1.5;color:#5c5c5c;margin:8px 0 18px;}
.eg-body{animation:egIn .5s cubic-bezier(.2,.8,.2,1);}
@keyframes egIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.eg-hint{min-height:22px;font-size:14px;margin-top:12px;color:#5c5c5c;text-align:center;}
.eg-hint.bad{color:#dc2626;}

.eg-foot{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px 14px;margin-top:6px;padding-top:12px;border-top:1px solid rgba(15,15,20,.08);}
.eg-swap{background:none;border:0;color:var(--blue-light,#1d4ed8);font:600 14px 'Inter',sans-serif;cursor:pointer;padding:8px 0;}
.eg-swap:hover{text-decoration:underline;}
.eg-lives{display:flex;gap:6px;}
.eg-lives b{width:9px;height:9px;border-radius:50%;background:var(--blue,#2563eb);transition:.3s ease;}
.eg-lives b.off{background:#d6dbe8;transform:scale(.7);}
.eg-alt{font-size:13px;color:#5c5c5c;border-bottom:1px solid rgba(15,15,20,.2);}
.eg-alt:hover{color:var(--blue-light,#1d4ed8);border-color:currentColor;}

/* ---------- success ---------- */
.eg-done{position:absolute;inset:0;border-radius:inherit;background:#fff;display:grid;align-content:center;justify-items:center;gap:14px;
  text-align:center;opacity:0;pointer-events:none;transition:opacity .35s ease;}
.eg-done.show{opacity:1;pointer-events:auto;}
.eg-done svg{width:96px;height:96px;}
.eg-done .ring{fill:none;stroke:var(--blue,#2563eb);stroke-width:3;stroke-dasharray:289;stroke-dashoffset:289;stroke-linecap:round;transform:rotate(-90deg);transform-origin:50% 50%;}
.eg-done .tick{fill:none;stroke:var(--blue,#2563eb);stroke-width:4;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:60;stroke-dashoffset:60;}
.eg-done.show .ring{animation:egDraw .7s .05s ease forwards;}
.eg-done.show .tick{animation:egDraw .45s .6s ease forwards;}
@keyframes egDraw{to{stroke-dashoffset:0}}
.eg-done h3{font-family:'Space Grotesk',sans-serif;font-size:24px;letter-spacing:-.02em;margin:0;}
.eg-done p{font-size:15px;color:#5c5c5c;margin:0;}

/* =========================================================
   Puzzle 1 — Calculator
   ========================================================= */
.calc{background:#0b1020;border-radius:18px;padding:12px;}
.calc canvas{display:block;width:100%;height:auto;border-radius:12px;}
.calc-out{margin:10px 0;background:#0e1630;color:#fff;border:1px solid rgba(157,184,255,.2);border-radius:12px;padding:8px 16px;
  font:600 32px/1.3 'Space Grotesk',sans-serif;text-align:right;min-height:58px;letter-spacing:.04em;}
.calc-out::after{content:"";display:inline-block;width:2px;height:.9em;margin-left:4px;background:#7aa7ff;vertical-align:-.08em;animation:egBlink 1s steps(1) infinite;}
@keyframes egBlink{0%,49%{opacity:1}50%,100%{opacity:0}}
.calc-keys{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,52px);gap:8px;}
.calc-keys button{border:0;border-radius:12px;background:#18224a;color:#fff;font:600 21px 'Space Grotesk',sans-serif;cursor:pointer;
  transition:background .2s ease,transform .12s ease;-webkit-tap-highlight-color:transparent;}
.calc-keys button:hover{background:#243272;}
.calc-keys button:active{transform:scale(.93);}
.calc-keys .op{background:#2a376b;color:#bcd0ff;}
.calc-keys .eq{grid-column:4;grid-row:3 / span 2;background:var(--blue,#2563eb);font-size:28px;}
.calc-keys .eq:hover{background:#3b73f5;}
.calc-keys .zero{grid-column:1 / span 3;}

/* =========================================================
   Puzzle 2 — Slide to fit
   ========================================================= */
.fit{position:relative;width:100%;aspect-ratio:2/1;border-radius:14px;overflow:hidden;background:#1e40af;user-select:none;-webkit-user-select:none;}
.fit canvas{position:absolute;display:block;}
.fit .fit-bg{inset:0;width:100%;height:100%;}
.fit .fit-piece{filter:drop-shadow(0 4px 8px rgba(0,0,0,.45));}
.fit-track{position:relative;height:52px;margin-top:14px;border-radius:100px;background:#eef2fb;border:1px solid rgba(15,15,20,.08);touch-action:none;}
.fit-track span.lab{position:absolute;inset:0;display:grid;place-items:center;font-size:14px;color:#5c5c5c;letter-spacing:.02em;pointer-events:none;}
.fit-fill{position:absolute;left:0;top:0;bottom:0;width:0;border-radius:100px;background:linear-gradient(90deg,rgba(37,99,235,.1),rgba(37,99,235,.35));}
.fit-handle{position:absolute;left:0;top:-1px;width:54px;height:54px;border-radius:50%;background:var(--blue,#2563eb);color:#fff;border:0;display:grid;place-items:center;
  font-size:20px;cursor:grab;touch-action:none;box-shadow:0 6px 18px rgba(37,99,235,.45);transition:box-shadow .2s ease;}
.fit-handle:active,.fit-handle.drag{cursor:grabbing;box-shadow:0 0 0 8px rgba(37,99,235,.2),0 6px 18px rgba(37,99,235,.55);}
.fit-handle:focus-visible{outline:3px solid rgba(37,99,235,.4);outline-offset:3px;}
.fit.ok .fit-piece{filter:drop-shadow(0 0 12px rgba(255,255,255,.9));}

/* =========================================================
   Puzzle 3 — Circuit
   ========================================================= */
.volt{position:relative;width:100%;aspect-ratio:100/60;border-radius:16px;overflow:hidden;background:#0b1020;
  background-image:radial-gradient(rgba(157,184,255,.22) 1px,transparent 1.4px);background-size:22px 22px;}
.volt.shake{animation:egShake .45s ease;}
.volt svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible;}
.volt line{stroke:#7aa7ff;stroke-width:3;stroke-linecap:round;vector-effect:non-scaling-stroke;filter:drop-shadow(0 0 5px rgba(122,167,255,.9));}
.vnode{position:absolute;transform:translate(-50%,-50%);width:56px;height:56px;border-radius:50%;
  border:1.5px solid rgba(157,184,255,.6);background:rgba(37,99,235,.16);color:#dbe6ff;
  font:600 17px 'Space Grotesk',sans-serif;cursor:pointer;transition:background .25s ease,box-shadow .3s ease,transform .25s ease,color .2s ease;}
.vnode:hover{transform:translate(-50%,-50%) scale(1.08);background:rgba(37,99,235,.35);}
.vnode:focus-visible{outline:3px solid rgba(157,184,255,.7);outline-offset:3px;}
.vnode.on{background:var(--blue,#2563eb);border-color:#fff;color:#fff;box-shadow:0 0 0 6px rgba(37,99,235,.3),0 0 26px rgba(122,167,255,.85);}
.volt-count{position:absolute;left:12px;bottom:10px;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:rgba(157,184,255,.85);}

/* ---------- phones: bottom sheet ---------- */
@media(max-width:560px){
  .eg{padding:0;align-items:end;}
  .eg-card{width:100%;max-width:none;border-radius:22px 22px 0 0;padding:24px 20px calc(16px + env(safe-area-inset-bottom));transform:translateY(60px);}
  .eg-title{font-size:24px;}
  .eg-sub{font-size:16px;}
  .calc-keys{grid-template-rows:repeat(4,54px);}
  .vnode{width:54px;height:54px;font-size:17px;}
  .eg-msg{font-size:15px;}
}
@media(prefers-reduced-motion:reduce){
  .eg,.eg-card,.eg-body,.eg-done .ring,.eg-done .tick,.eg-eyebrow i::after,.calc-out::after{animation:none !important;transition:none !important;}
  .eg-done .ring,.eg-done .tick{stroke-dashoffset:0;}
}