.erccc-app{--erccc-primary:#2563eb;--erccc-dark:#111827;--erccc-muted:#64748b;--erccc-card:#ffffff;--erccc-soft:#f8fafc;--erccc-border:#e5e7eb;max-width:1100px;margin:12px auto 28px;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--erccc-dark);color-scheme:light;background:transparent}
.erccc-app *{box-sizing:border-box}.erccc-hero{text-align:center;margin-bottom:10px;padding:8px 14px 4px}.erccc-brand{display:inline-flex;align-items:center;justify-content:center;margin-bottom:8px;padding:6px 12px;border:1px solid #dbeafe;border-radius:999px;background:#eff6ff;color:#1d4ed8;font-weight:800;font-size:13px;letter-spacing:.02em}.erccc-hero h2{font-size:clamp(25px,3.6vw,40px);margin:0 0 6px;line-height:1.15}.erccc-hero p{font-size:16px;color:var(--erccc-muted);margin:0}.erccc-card{background:var(--erccc-card)!important;color:var(--erccc-dark)!important;border:1px solid var(--erccc-border);border-radius:20px;box-shadow:0 14px 36px rgba(15,23,42,.07);padding:18px;margin-bottom:18px}.erccc-main-card{padding-top:16px}.erccc-controls-top{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:stretch;margin-bottom:14px}.erccc-control-block{background:#f8fafc!important;border:1px solid #e2e8f0;border-radius:16px;padding:13px}.erccc-control-separator{width:1px;background:linear-gradient(180deg,transparent,#cbd5e1,transparent);min-height:74px}.erccc-label{display:block;font-weight:800;margin-bottom:7px;color:#111827}.erccc-segmented{display:flex;gap:8px;flex-wrap:wrap}.erccc-segmented button,.erccc-actions button,.erccc-example-buttons button,.erccc-quiz button{border:1px solid #d1d5db;background:#fff!important;color:#111827!important;border-radius:999px;padding:9px 14px;cursor:pointer;font-weight:800;transition:.2s}.erccc-segmented button.active,.erccc-actions button:hover,.erccc-example-buttons button:hover,.erccc-quiz button:hover{background:var(--erccc-primary)!important;color:#fff!important;border-color:var(--erccc-primary)}.erccc-resistor-wrap{background:linear-gradient(180deg,#f9fafb,#eef2ff)!important;border:1px solid #e0e7ff;border-radius:18px;padding:8px 10px;margin:10px 0 14px}.erccc-resistor-svg{width:100%;height:auto;display:block;max-height:190px}.erccc-band-pickers{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:12px}.erccc-picker{border:1px solid var(--erccc-border);background:#f9fafb!important;border-radius:15px;padding:12px}.erccc-picker-label{display:block;margin:0 0 7px;font-size:14px;font-weight:800;color:#111827}.erccc-smart-select{display:grid;grid-template-columns:34px 1fr;gap:9px;align-items:center}.erccc-selected-chip{width:30px;height:30px;border-radius:50%;display:inline-block;border:1px solid #94a3b8;box-shadow:inset 0 0 0 2px rgba(255,255,255,.45)}.erccc-selected-chip.is-white{background:#fff;border:1px solid #64748b}.erccc-smart-select select{width:100%;border:1px solid #cbd5e1;border-radius:12px;background:#fff!important;color:#111827!important;padding:10px 12px;font-weight:700;font-size:15px}.erccc-picker-help{display:block;color:#64748b;margin-top:6px;font-size:12.5px}.erccc-colors{display:flex;flex-wrap:wrap;gap:7px}.erccc-color-btn{width:32px;height:32px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px #d1d5db;cursor:pointer;position:relative}.erccc-color-btn.active{box-shadow:0 0 0 3px var(--erccc-primary)}.erccc-reverse-box label{display:block;font-weight:800;margin-bottom:8px;color:#111827}.erccc-input-row{display:grid;grid-template-columns:2fr 1fr 1fr;gap:10px}.erccc-input-row input,.erccc-input-row select{border:1px solid #cbd5e1;border-radius:13px;padding:11px;font-size:15px;width:100%;background:#fff!important;color:#111827!important}.erccc-results{display:grid;grid-template-columns:repeat(auto-fit,minmax(165px,1fr));gap:10px;margin:14px 0}.erccc-result-card{background:#f8fafc!important;border:1px solid var(--erccc-border);border-radius:15px;padding:13px}.erccc-result-card span{display:block;color:var(--erccc-muted);font-size:13px;margin-bottom:6px}.erccc-result-card strong{font-size:20px;color:#111827}.erccc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}.erccc-explanation{background:#f8fafc!important;color:#111827!important;border:1px solid #e2e8f0;border-radius:16px;padding:16px}.erccc-explanation h3{margin-top:0;color:#111827}.erccc-explanation p{margin:.45em 0}.erccc-examples h3,.erccc-quiz h3,.erccc-education h3,.erccc-table-section h3,.erccc-faq h3,.erccc-related h3{margin-top:0;color:#111827}.erccc-example-buttons{display:flex;gap:10px;flex-wrap:wrap}.erccc-quiz-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.erccc-quiz-line strong{background:#f3f4f6!important;border-radius:999px;padding:10px 14px;color:#111827}.erccc-table-wrap{overflow-x:auto}.erccc-table-section table{width:100%;border-collapse:collapse;background:#fff!important;color:#111827!important}.erccc-table-section th,.erccc-table-section td{border:1px solid var(--erccc-border);padding:10px;text-align:left}.erccc-table-section th{background:#f3f4f6!important;color:#111827}.erccc-swatch{display:inline-block;width:18px;height:18px;border-radius:50%;vertical-align:middle;margin-right:7px;border:1px solid #cbd5e1}.erccc-faq details{border:1px solid var(--erccc-border);border-radius:14px;padding:12px;margin:10px 0;background:#fff!important;color:#111827!important}.erccc-faq summary{font-weight:800;cursor:pointer}.erccc-related{padding:18px;border-radius:20px;background:#f8fafc!important;border:1px solid var(--erccc-border);color:#111827!important}.erccc-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px}.erccc-related-grid a{display:block;text-decoration:none;background:#fff!important;border:1px solid var(--erccc-border);border-radius:14px;padding:13px;font-weight:800;color:var(--erccc-primary)!important}
@media(max-width:700px){.erccc-app{margin:6px auto 22px}.erccc-hero{padding-top:4px}.erccc-controls-top,.erccc-input-row{grid-template-columns:1fr}.erccc-control-separator{width:100%;height:1px;min-height:1px;background:linear-gradient(90deg,transparent,#cbd5e1,transparent);margin:2px 0}.erccc-control-block{padding:12px}.erccc-card{padding:14px;border-radius:17px}.erccc-band-pickers{grid-template-columns:1fr}.erccc-resistor-wrap{padding:4px;margin:8px 0 12px}.erccc-resistor-svg{max-height:150px}.erccc-result-card strong{font-size:18px}.erccc-segmented button,.erccc-actions button,.erccc-example-buttons button,.erccc-quiz button{padding:9px 12px}.erccc-brand{font-size:12px}.erccc-hero h2{font-size:25px}}

.erccc-mode-note{display:none;margin-top:8px;color:#5f6b7a;font-size:13px}.erccc-smart-select.is-disabled{opacity:.58}

/* v1.1.3 usability fixes */
.erccc-result-note{
    margin:14px 0 8px;
    padding:11px 13px;
    border-left:4px solid var(--erccc-primary);
    border-radius:12px;
    background:#eff6ff!important;
    color:#0f172a!important;
    font-weight:800;
}
.erccc-input-row.erccc-value-row{
    grid-template-columns:minmax(180px,1.4fr) minmax(145px,.8fr) minmax(260px,1.25fr) minmax(200px,1fr);
    align-items:stretch;
}
.erccc-input-row input,
.erccc-input-row select,
.erccc-smart-select select{
    min-height:48px;
    line-height:1.35;
    padding-top:12px;
    padding-bottom:12px;
    white-space:normal;
}
.erccc-smart-select{
    align-items:center;
}
.erccc-picker{
    min-height:112px;
}
.erccc-picker-label{
    line-height:1.35;
}
.erccc-input-row select,
.erccc-smart-select select{
    text-overflow:ellipsis;
}
@media(max-width:850px){
    .erccc-input-row.erccc-value-row{grid-template-columns:1fr 1fr;}
    .erccc-input-row.erccc-value-row input{grid-column:1/-1;}
}
@media(max-width:520px){
    .erccc-input-row.erccc-value-row{grid-template-columns:1fr;}
    .erccc-input-row input,
    .erccc-input-row select,
    .erccc-smart-select select{min-height:50px;font-size:15px;}
}


/* v1.1.4 header and wording refinement */
.erccc-hero{
  display:flex!important;
  align-items:stretch!important;
  gap:14px!important;
  text-align:left!important;
  margin-bottom:12px!important;
  padding:0!important;
}
.erccc-brand{
  flex:0 0 auto!important;
  align-self:stretch!important;
  display:flex!important;
  align-items:center!important;
  justify-content:center!important;
  margin:0!important;
  padding:12px 16px!important;
  border-radius:18px!important;
  background:#eff6ff!important;
  border:1px solid #bfdbfe!important;
  color:#1d4ed8!important;
  font-weight:900!important;
  line-height:1.25!important;
  max-width:230px!important;
  text-align:left!important;
}
.erccc-hero-copy{
  flex:1 1 auto!important;
  padding:14px 18px!important;
  border-radius:20px!important;
  background:linear-gradient(135deg,#fff7ed 0%,#eff6ff 52%,#ecfeff 100%)!important;
  border:1px solid #dbeafe!important;
  box-shadow:0 10px 26px rgba(15,23,42,.06)!important;
  position:relative!important;
  overflow:hidden!important;
}
.erccc-hero-copy:before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;width:6px;
  background:linear-gradient(180deg,#f97316,#2563eb,#06b6d4);
}
.erccc-hero h2{
  color:#111827!important;
  margin:0 0 6px!important;
}
.erccc-hero p{
  color:#475569!important;
  margin:0!important;
}
@media(max-width:700px){
  .erccc-hero{flex-direction:column!important;gap:8px!important;}
  .erccc-brand{max-width:none!important;width:100%!important;justify-content:flex-start!important;padding:10px 14px!important;}
  .erccc-hero-copy{padding:13px 15px!important;}
}