:root{--et-blue:#0b5fff;--et-dark:#0f172a;--et-muted:#64748b;--et-line:#e2e8f0;--et-soft:#f8fafc;--et-light:#eff6ff;--et-badge:#dbeafe;--et-badge-text:#1d4ed8;--et-success:#064e3b;--et-warn:#f97316;--et-error:#991b1b;--et-purple:#7c3aed;--et-grey:#e5e7eb;--et-white:#fff}.esssc-wrap{max-width:1100px;margin:24px auto;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--et-dark)}.esssc-hero,.esssc-card{background:var(--et-white);border:1px solid var(--et-line);border-radius:24px;padding:28px;margin:18px 0;box-shadow:0 12px 36px rgba(15,23,42,.08)}.esssc-hero{background:linear-gradient(135deg,var(--et-light),var(--et-white))}.esssc-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.esssc-badge{display:inline-block;background:var(--et-badge);color:var(--et-badge-text);font-size:13px;font-weight:800;border-radius:999px;padding:8px 12px;margin-bottom:12px}.esssc-doc-link{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:#eef2ff;color:#1e3a8a;text-decoration:none;font-weight:800;padding:8px 14px;border:1px solid #c7d2fe}.esssc-wrap h1{font-size:clamp(28px,4vw,44px);line-height:1.08;margin:0 0 12px}.esssc-wrap h2{font-size:clamp(22px,3vw,30px);margin:0 0 15px}.esssc-wrap h3{margin:0 0 12px}.esssc-content,.esssc-card{font-size:16px;line-height:1.7}.esssc-mode-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:14px}.esssc-mode-option{display:flex;align-items:center;justify-content:center;gap:10px;border:1px solid var(--et-line);background:#fff;color:var(--et-dark);border-radius:16px;padding:13px 14px;font-weight:900;cursor:pointer;user-select:none;transition:background .12s ease,color .12s ease,border-color .12s ease,box-shadow .12s ease}.esssc-mode-option input{width:18px;height:18px;accent-color:var(--et-blue);margin:0}.esssc-mode-option.active{background:var(--et-blue)!important;border-color:var(--et-blue)!important;color:#fff!important;box-shadow:0 8px 18px rgba(11,95,255,.2)}.esssc-mode-option.active .esssc-tip{background:#fff;color:var(--et-blue)}.esssc-mode-help{margin:0 0 16px;color:var(--et-muted);background:#f8fafc;border:1px solid var(--et-line);border-radius:14px;padding:12px 14px}.esssc-tabs{margin-bottom:18px}.esssc-advanced-tabs{display:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;border:1px solid #ddd6fe;background:#faf5ff;border-radius:18px;padding:14px;margin-bottom:18px}.esssc-advanced-tabs.esssc-advanced-enabled{display:grid!important}.esssc-advanced-help{grid-column:1/-1;margin:0 0 2px;color:#5b21b6;font-size:14px;font-weight:700}.esssc-feature-option{display:block;margin:0;padding:0;min-width:0}.esssc-feature-option button{display:flex!important;align-items:center!important;justify-content:center!important;gap:8px;width:100%!important;min-height:56px!important;height:56px!important;border-radius:14px!important;border:1px solid #d1d5db!important;background:var(--et-grey)!important;color:#334155!important;font-weight:900!important;font-size:15px!important;line-height:1.1!important;cursor:pointer!important;pointer-events:auto!important;box-shadow:none!important;transition:background .1s ease,color .1s ease,border-color .1s ease,box-shadow .1s ease,transform .06s ease!important;-webkit-tap-highlight-color:rgba(124,58,237,.18);touch-action:manipulation}.esssc-feature-option button:active{transform:scale(.98)}.esssc-feature-option button.active,.esssc-feature-option.esssc-feature-open button{background:var(--et-purple)!important;border-color:var(--et-purple)!important;color:#fff!important;box-shadow:0 8px 16px rgba(124,58,237,.22)!important}.esssc-feature-option button.active .esssc-tip,.esssc-feature-option.esssc-feature-open button .esssc-tip{background:#fff;color:var(--et-purple)}.esssc-tab{display:none}.esssc-tab.active{display:block}.esssc-tab[data-optional-panel]{display:none}.esssc-tab[data-optional-panel].active{display:block}.esssc-panel-info{display:flex;flex-direction:column;gap:3px;border-left:5px solid var(--et-blue);background:#f8fafc;border-radius:14px;padding:14px 16px;margin:0 0 16px}.esssc-panel-info strong{font-size:16px}.esssc-panel-info span{color:var(--et-muted);font-size:14px}.esssc-panel-roi{border-left-color:#f97316;background:#fff7ed}.esssc-panel-battery{border-left-color:#16a34a;background:#f0fdf4}.esssc-panel-compare{border-left-color:#7c3aed;background:#faf5ff}.esssc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.esssc-grid label{font-weight:800;font-size:14px;color:var(--et-dark);display:block}.esssc-grid input,.esssc-grid select,.esssc-inline input,.esssc-inline select,.esssc-suffix input{width:100%;min-height:54px!important;height:54px!important;line-height:normal!important;box-sizing:border-box;margin-top:7px;border:1px solid #cbd5e1;border-radius:14px;padding:0 14px!important;font-size:16px!important;background:#fff;color:var(--et-dark);overflow:visible!important}.esssc-grid select,.esssc-inline select{padding-right:38px!important;-webkit-appearance:menulist!important;appearance:auto!important}.esssc-inline{display:grid;grid-template-columns:1fr 86px;gap:8px}.esssc-suffix{position:relative}.esssc-suffix input{padding-right:70px!important}.esssc-suffix span{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--et-muted);font-weight:800;pointer-events:none}.esssc-tip{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:var(--et-badge);color:var(--et-badge-text);font-size:12px;margin-left:3px;cursor:pointer;flex:0 0 auto}.esssc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.esssc-actions button,.esssc-secondary{border:0;border-radius:14px;padding:13px 18px;font-weight:900;cursor:pointer;background:var(--et-blue);color:#fff;box-shadow:0 8px 18px rgba(11,95,255,.18);transition:background .1s ease,transform .06s ease}.esssc-actions button:active{background:var(--et-purple)!important;transform:scale(.98)}.esssc-actions .esssc-secondary,.esssc-secondary{background:#eef2ff;color:#1e3a8a;box-shadow:none}.esssc-ai-btn{background:#7c3aed!important}.esssc-error{margin-top:16px;color:var(--et-error);font-weight:800}.esssc-results{margin-top:20px}.esssc-result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.esssc-result{border:1px solid var(--et-line);border-radius:18px;padding:16px;background:var(--et-soft)}.esssc-result span{display:block;color:var(--et-muted);font-size:13px;font-weight:800}.esssc-result strong{display:block;font-size:20px;margin-top:6px;line-height:1.25;word-break:break-word}.esssc-active{border-color:#93c5fd;background:#eff6ff}.esssc-muted{opacity:.68}.esssc-recommend,.esssc-note{margin-top:18px;border-left:5px solid var(--et-blue);background:#f8fafc;padding:16px;border-radius:16px}.esssc-steps{margin-top:18px}.esssc-steps ol{padding-left:22px}.esssc-warning{border-left:6px solid var(--et-warn);background:#fff7ed}.esssc-card details{border:1px solid var(--et-line);border-radius:14px;padding:14px;margin:10px 0;background:#f8fafc}.esssc-card summary{font-weight:900;cursor:pointer}.esssc-small{font-size:14px;color:var(--et-muted)}.esssc-compare{margin:14px 0;overflow-x:auto}.esssc-compare table{width:100%;border-collapse:collapse;background:#fff}.esssc-compare th,.esssc-compare td{border:1px solid var(--et-line);padding:10px;text-align:left;white-space:nowrap}.esssc-ad-slot{margin-top:24px;min-height:96px;border:1px dashed #cbd5e1;border-radius:18px;background:#f8fafc;color:#94a3b8;display:flex;align-items:center;justify-content:center;font-weight:800}.esssc-ai-card{border:1px solid var(--et-line);border-left:5px solid var(--et-blue);border-radius:16px;background:#fff;padding:16px;margin:14px 0;box-shadow:0 4px 16px rgba(15,23,42,.05)}.esssc-ai-card h3{font-size:18px;margin:0 0 10px}.esssc-ai-card p{margin:0 0 10px;color:#334155;line-height:1.75}.esssc-ai-card ul{margin:0;padding-left:20px}.esssc-ai-disclaimer{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;padding:12px;border-radius:12px;margin-top:12px}.esssc-tooltip-modal{position:fixed!important;inset:0!important;z-index:999999!important;display:none!important;align-items:center!important;justify-content:center!important;background:rgba(15,23,42,.55)!important;padding:18px!important}.esssc-tooltip-modal.active{display:flex!important}.esssc-tooltip-box{width:min(92vw,420px)!important;max-width:420px!important;background:#fff!important;color:#0f172a!important;border-radius:18px!important;padding:20px!important;box-shadow:0 24px 80px rgba(0,0,0,.28)!important;text-align:center!important;line-height:1.65!important;position:relative!important;left:auto!important;right:auto!important;top:auto!important;bottom:auto!important;transform:none!important}.esssc-tooltip-box h3{font-size:18px;margin:0 0 8px}.esssc-tooltip-close{margin-top:14px;border:0;background:var(--et-blue);color:#fff;border-radius:10px;padding:10px 16px;font-weight:900;cursor:pointer}.esssc-report-title{display:none}.esssc-content p:last-child,.esssc-card p:last-child{margin-bottom:0}@media(max-width:900px){.esssc-grid,.esssc-result-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.esssc-hero,.esssc-card{padding:20px}}@media(max-width:640px){.esssc-wrap{margin:12px auto}.esssc-mode-switch{grid-template-columns:1fr}.esssc-advanced-tabs{grid-template-columns:1fr!important}.esssc-grid,.esssc-result-grid{grid-template-columns:1fr}.esssc-inline{grid-template-columns:1fr}.esssc-actions button{width:100%}.esssc-hero,.esssc-card{border-radius:18px}.esssc-feature-option button{height:54px!important;min-height:54px!important}}
@media print{
  /* Fallback for browser Ctrl+P: show only result and AI recommendation inside the calculator. */
  body *{visibility:hidden!important;}
  #esssc-results,#esssc-results *,#esssc-ai-panel,#esssc-ai-panel *{visibility:visible!important;}
  #esssc-results{position:absolute!important;left:0!important;top:0!important;width:100%!important;margin:0!important;padding:12px!important;background:#fff!important;color:#000!important;}
  #esssc-ai-panel{position:relative!important;width:100%!important;margin-top:24px!important;padding:12px!important;background:#fff!important;color:#000!important;}
  #esssc-results .esssc-report-title{display:block!important;}
  .esssc-result-grid{grid-template-columns:repeat(2,1fr)!important;}
  .esssc-result,.esssc-recommend,.esssc-ai-card{break-inside:avoid!important;box-shadow:none!important;}
}

/* v4.6.0 formula documentation styling */
.esssc-formula-guide{display:block}.esssc-standard-box{border:1px solid #bfdbfe;border-left:6px solid var(--et-blue);background:linear-gradient(135deg,#eff6ff,#fff);border-radius:18px;padding:18px;margin:0 0 20px}.esssc-standard-box h3{color:#0847bf;margin:0 0 10px}.esssc-formula-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.esssc-formula-item{position:relative;border:1px solid var(--et-line);border-radius:18px;background:#fff;padding:18px 18px 16px 58px;box-shadow:0 6px 18px rgba(15,23,42,.05)}.esssc-formula-item>span{position:absolute;left:16px;top:16px;width:30px;height:30px;border-radius:50%;background:var(--et-purple);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:13px}.esssc-formula-item h4{margin:0 0 8px;color:#0f172a;font-size:17px}.esssc-formula-item code{display:inline-block;background:#0f172a;color:#e0f2fe;border-radius:8px;padding:5px 8px;margin:2px 0;font-size:13px;line-height:1.5;white-space:normal}.esssc-formula-item p{margin:7px 0;color:#334155}.esssc-formula-explain{border:1px solid #ddd6fe;border-left:6px solid var(--et-purple);background:#faf5ff;border-radius:18px;padding:18px}.esssc-formula-explain p{margin:0 0 12px}.esssc-formula-explain p:last-child{margin-bottom:0}@media(max-width:800px){.esssc-formula-grid{grid-template-columns:1fr}.esssc-formula-item{padding-left:54px}}