/* Star Rating Calculator. Every rule is scoped under .src. */
.src{
  --background:#ffffff;
  --foreground:#0a0a0a;
  --card:#ffffff;
  --muted:#f5f5f5;
  --muted-foreground:#737373;
  --border:#e5e5e5;
  --input:#e5e5e5;
  --ring:#a1a1a1;
  --primary:#171717;
  --primary-foreground:#fafafa;
  --accent:#f5f5f5;
  --blue:#0285FF;
  --blue-soft:rgba(2,133,255,.08);
  --radius:10px;
  --shadow-xs:0 1px 2px 0 rgba(0,0,0,.05);
  --shadow-sm:0 1px 3px 0 rgba(0,0,0,.06),0 1px 2px -1px rgba(0,0,0,.06);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:var(--background);color:var(--foreground);font-family:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;text-align:left
}
.src,.src *,.src *::before,.src *::after{box-sizing:border-box;margin:0;padding:0;border:0 solid var(--border)}
.src a{color:inherit;text-decoration:none}
.src button,.src input{font:inherit;color:inherit}
.src svg{display:block;flex-shrink:0}
.src h1,.src h2,.src h3,.src p,.src ol,.src ul,.src dl,.src dd,.src table{font-size:inherit;font-weight:inherit;line-height:inherit;letter-spacing:inherit}
.src .tnum{font-variant-numeric:tabular-nums}
.src .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.src .container{width:100%;max-width:1120px;margin:0 auto;padding:0 16px}
.src .prose-w{max-width:760px;margin:0 auto}
.src [id]{scroll-margin-top:88px}

/* Buttons */
.src .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:36px;padding:0 16px;border-radius:8px;font-size:14px;font-weight:500;white-space:nowrap;cursor:pointer;transition:background-color .15s,opacity .15s,box-shadow .15s;outline:none;-webkit-tap-highlight-color:transparent}
.src .btn svg{width:16px;height:16px}
.src .btn:focus-visible{box-shadow:0 0 0 3px rgba(161,161,161,.5)}
.src .btn-primary{background:var(--primary);color:var(--primary-foreground);box-shadow:var(--shadow-xs)}
.src .btn-primary:hover{background:rgba(23,23,23,.9)}
.src .btn-outline{background:var(--background);border:1px solid var(--border);box-shadow:var(--shadow-xs)}
.src .btn-outline:hover{background:var(--accent)}
.src .btn-ghost{background:transparent}
.src .btn-ghost:hover{background:var(--accent)}
.src .btn-sm{height:32px;padding:0 12px;font-size:13px}
.src .btn-lg{height:40px;padding:0 24px}

/* Badge */
.src .badge{display:inline-flex;align-items:center;gap:6px;height:22px;padding:0 8px;border-radius:6px;font-size:12px;font-weight:500;white-space:nowrap;border:1px solid var(--border);background:var(--background);color:var(--foreground)}
.src .badge svg{width:12px;height:12px}
.src .badge-secondary{background:var(--muted);border-color:transparent}
.src .badge-blue{background:var(--blue-soft);border-color:transparent;color:var(--blue)}

/* Hero */
.src .hero{padding:72px 0 48px;text-align:center;background:#fff}
.src .hero h1{font-size:clamp(34px,6vw,56px);line-height:1.05;letter-spacing:-0.04em;font-weight:600;max-width:760px;margin:0 auto}
.src .hero .lead{color:var(--muted-foreground);font-size:clamp(16px,2vw,18px);line-height:1.6;max-width:600px;margin:16px auto 0;text-wrap:pretty}
.src .hero-actions{display:flex;gap:8px;justify-content:center;margin-top:28px}
.src .hero-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 16px;margin-top:20px;font-size:13px;color:var(--muted-foreground)}
.src .hero-meta span{display:inline-flex;align-items:center;gap:6px}
.src .hero-meta svg{width:14px;height:14px;color:var(--foreground)}

/* Card */
.src .card{background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;min-width:0}
.src .card-header{padding:24px 24px 0;display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.src .card-title{font-size:16px;font-weight:600;letter-spacing:-0.01em;line-height:1.3}
.src .card-desc{font-size:14px;color:var(--muted-foreground);margin-top:4px}
.src .card-content{padding:24px}
.src .card-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px}

/* Calculator layout */
.src .calc{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:16px;align-items:start}

/* Form */
.src .field+.field{margin-top:22px}
.src .label-row{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px}
.src .label{font-size:14px;font-weight:500;line-height:1}
.src .help{font-size:12px;color:var(--muted-foreground)}
.src .input-wrap{position:relative}
.src .input{display:block;width:100%;height:36px;padding:0 12px;border:1px solid var(--input);border-radius:8px;background:transparent;font-size:14px;box-shadow:var(--shadow-xs);outline:none;transition:border-color .15s,box-shadow .15s;font-variant-numeric:tabular-nums;-webkit-appearance:none;appearance:none}
.src .input::placeholder{color:var(--muted-foreground)}
.src .input:focus-visible{border-color:var(--ring);box-shadow:0 0 0 3px rgba(161,161,161,.5)}
.src .input[aria-invalid="true"]{border-color:#ef4444;box-shadow:0 0 0 3px rgba(239,68,68,.15)}
.src .input-suffix{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--muted-foreground);pointer-events:none}
.src .input.has-suffix{padding-right:72px}
.src .err{font-size:12px;color:#dc2626;margin-top:6px;display:none}
.src .field.invalid .err{display:block}

/* Slider (shadcn style) */
.src .slider{-webkit-appearance:none;appearance:none;width:100%;height:20px;background:transparent;margin-top:12px;cursor:pointer;--p:80%}
.src .slider:focus{outline:none}
.src .slider::-webkit-slider-runnable-track{height:6px;border-radius:999px;background:linear-gradient(to right,var(--primary) 0,var(--primary) var(--p),var(--muted) var(--p),var(--muted) 100%)}
.src .slider::-moz-range-track{height:6px;border-radius:999px;background:var(--muted)}
.src .slider::-moz-range-progress{height:6px;border-radius:999px;background:var(--primary)}
.src .slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;margin-top:-6px;border-radius:50%;background:#fff;border:1px solid var(--primary);box-shadow:var(--shadow-sm);transition:box-shadow .15s}
.src .slider::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#fff;border:1px solid var(--primary);box-shadow:var(--shadow-sm)}
.src .slider:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 4px rgba(161,161,161,.5)}
.src .slider-scale{display:flex;justify-content:space-between;font-size:11px;color:var(--muted-foreground);margin-top:2px;font-variant-numeric:tabular-nums}

.src .stars{display:inline-flex;gap:2px;position:relative;line-height:0}
.src .stars .bg{display:inline-flex;gap:2px}
.src .stars svg{width:14px;height:14px;color:var(--border)}
.src .stars .fill{position:absolute;inset:0;display:inline-flex;gap:2px;overflow:hidden;white-space:nowrap}
.src .stars .fill svg{color:var(--blue)}

/* Toggle group */
.src .toggle-group{display:grid;grid-template-columns:repeat(7,1fr);border:1px solid var(--input);border-radius:8px;box-shadow:var(--shadow-xs);overflow:hidden;margin-bottom:8px}
.src .toggle{height:34px;background:transparent;border-left:1px solid var(--input);font-size:13px;font-weight:500;cursor:pointer;font-variant-numeric:tabular-nums;transition:background-color .15s;outline:none;-webkit-tap-highlight-color:transparent}
.src .toggle:first-child{border-left:0}
.src .toggle:hover{background:var(--accent)}
.src .toggle:focus-visible{box-shadow:inset 0 0 0 2px var(--ring)}
.src .toggle[aria-pressed="true"]{background:var(--primary);color:var(--primary-foreground)}

/* Result */
.src .res-number{font-size:clamp(56px,9vw,72px);font-weight:600;letter-spacing:-0.05em;line-height:1;font-variant-numeric:tabular-nums}
.src .res-label{font-size:14px;color:var(--muted-foreground);margin-top:8px}
.src .res-desc{font-size:14px;color:var(--muted-foreground);margin-top:16px;line-height:1.6;text-wrap:pretty}
.src .res-desc b{color:var(--foreground);font-weight:600}

.src .stats{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--border);border-radius:10px;margin-top:20px;overflow:hidden}
.src .stat{padding:12px 14px;border-left:1px solid var(--border);min-width:0}
.src .stat:first-child{border-left:0}
.src .stat-k{font-size:12px;color:var(--muted-foreground)}
.src .stat-v{font-size:20px;font-weight:600;letter-spacing:-0.02em;margin-top:2px;font-variant-numeric:tabular-nums}
.src .stat-d{font-size:12px;color:var(--muted-foreground);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* Tabs */
.src .tabs{margin-top:20px}
.src .tabs-list{display:inline-flex;align-items:center;height:36px;padding:3px;border-radius:9px;background:var(--muted);color:var(--muted-foreground)}
.src .tab{height:100%;padding:0 12px;border-radius:7px;background:transparent;font-size:13px;font-weight:500;cursor:pointer;color:inherit;transition:all .15s;outline:none}
.src .tab:focus-visible{box-shadow:0 0 0 2px var(--ring)}
.src .tab[aria-selected="true"]{background:var(--background);color:var(--foreground);box-shadow:var(--shadow-sm)}
.src .tab-panel{margin-top:12px}
.src .tab-panel[hidden]{display:none}

.src .chart-box{border:1px solid var(--border);border-radius:10px;padding:12px 12px 6px}
.src .chart-legend{display:flex;gap:14px;font-size:12px;color:var(--muted-foreground);margin:0 0 6px 4px}
.src .chart-legend span{display:inline-flex;align-items:center;gap:6px}
.src .chart-legend i{width:8px;height:8px;border-radius:2px;background:var(--blue)}
.src .chart-legend i.t{background:none;border:1px dashed var(--ring);width:12px;height:0;border-radius:0}
.src #chart{width:100%;min-height:190px}

/* Table */
.src .table-wrap{border:1px solid var(--border);border-radius:10px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.src table{width:100%;border-collapse:collapse;font-size:14px;font-variant-numeric:tabular-nums}
.src th{height:40px;padding:0 12px;text-align:left;font-weight:500;color:var(--muted-foreground);white-space:nowrap;border-bottom:1px solid var(--border)}
.src td{padding:10px 12px;border-bottom:1px solid var(--border);white-space:nowrap}
.src tbody tr:last-child td{border-bottom:0}
.src tbody tr:hover{background:rgba(245,245,245,.5)}
.src th.r,.src td.r{text-align:right}
.src td.na{color:var(--muted-foreground)}
.src .scen-table td:first-child{white-space:normal}

/* Alert */
.src .alert{display:grid;grid-template-columns:16px 1fr;gap:2px 12px;margin-top:16px;padding:12px 16px;border:1px solid var(--border);border-radius:10px;font-size:14px}
.src .alert svg{width:16px;height:16px;margin-top:2px;color:var(--blue)}
.src .alert-title{font-weight:500;line-height:1.4}
.src .alert-desc{grid-column:2;color:var(--muted-foreground);font-size:13px;line-height:1.55}
.src .alert-desc b{color:var(--foreground);font-weight:500}

.src .empty{padding:32px 0;text-align:center;color:var(--muted-foreground);font-size:14px}
.src .empty svg{width:20px;height:20px;margin:0 auto 10px;color:var(--muted-foreground)}

/* Content sections */
.src .section{padding-top:96px}
.src .h2{font-size:clamp(24px,3.4vw,30px);font-weight:600;letter-spacing:-0.03em;line-height:1.2;text-wrap:balance}
.src .h3{font-size:17px;font-weight:600;letter-spacing:-0.015em;line-height:1.35}
.src .p{color:var(--muted-foreground);font-size:16px;line-height:1.7;margin-top:12px;text-wrap:pretty}
.src .p b,.src .p strong{color:var(--foreground);font-weight:500}
.src .p code,.src .li code{font-family:var(--mono);font-size:.875em;background:var(--muted);padding:2px 6px;border-radius:5px;color:var(--foreground)}

/* Steps (shadcn docs) */
.src .steps{list-style:none;counter-reset:step;margin-top:32px;margin-left:16px;padding-left:32px;border-left:1px solid var(--border)}
.src .steps li{position:relative;counter-increment:step;padding-bottom:28px}
.src .steps li:last-child{padding-bottom:0}
.src .steps li::before{content:counter(step);position:absolute;left:-49px;top:-3px;width:34px;height:34px;border-radius:50%;background:var(--muted);border:4px solid var(--background);display:grid;place-items:center;font-size:14px;font-weight:600;font-variant-numeric:tabular-nums}
.src .steps .p{margin-top:6px}

/* Code block */
.src .code{margin-top:24px;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--muted)}
.src .code-head{display:flex;align-items:center;justify-content:space-between;height:40px;padding:0 6px 0 14px;border-bottom:1px solid var(--border);font-size:13px;color:var(--muted-foreground)}
.src .code pre{margin:0;padding:18px 16px;font-family:var(--mono);font-size:15px;line-height:1.7;overflow-x:auto;color:var(--foreground)}
.src .code .c{color:var(--muted-foreground)}
.src .defs{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;margin-top:20px;font-size:15px}
.src .defs dt{font-family:var(--mono);font-weight:600;font-size:14px;background:var(--muted);border-radius:6px;padding:1px 8px;height:fit-content;text-align:center}
.src .defs dd{color:var(--muted-foreground)}

.src .callout{margin-top:24px;padding:16px 18px;border:1px solid var(--border);border-radius:12px;font-size:15px;color:var(--muted-foreground);line-height:1.65}
.src .callout b{color:var(--foreground);font-weight:500}

.src .bar{display:inline-block;height:6px;border-radius:999px;background:var(--primary);vertical-align:middle;margin-right:10px;opacity:.85}

/* Checklist */
.src .checklist{list-style:none;margin-top:24px;display:grid;gap:12px}
.src .check{display:grid;grid-template-columns:20px 1fr;gap:12px;padding:16px;border:1px solid var(--border);border-radius:12px}
.src .check svg{width:18px;height:18px;margin-top:2px}
.src .check.do svg{color:var(--foreground)}
.src .check.dont svg{color:var(--muted-foreground)}
.src .check .h3{font-size:15px}
.src .check p{color:var(--muted-foreground);font-size:14px;line-height:1.6;margin-top:2px}

/* Accordion */
.src .accordion{margin-top:20px}
.src .acc-item{border-bottom:1px solid var(--border)}
.src .acc-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;font-size:15px;font-weight:500;cursor:pointer;outline:none;-webkit-tap-highlight-color:transparent}
.src .acc-item summary::-webkit-details-marker{display:none}
.src .acc-item summary:hover{text-decoration:underline;text-underline-offset:4px}
.src .acc-item summary:focus-visible{box-shadow:0 0 0 3px rgba(161,161,161,.5);border-radius:6px}
.src .acc-item summary svg{width:16px;height:16px;color:var(--muted-foreground);transition:transform .2s}
.src .acc-item[open] summary svg{transform:rotate(180deg)}
.src .acc-item .acc-body{padding:0 0 16px;font-size:14px;color:var(--muted-foreground);line-height:1.7}

/* Related */
.src .related{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.src .rel{display:flex;flex-direction:column;gap:6px;padding:20px;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-xs);transition:background-color .15s}
.src .rel:hover{background:rgba(245,245,245,.6)}
.src .rel .row{display:flex;justify-content:space-between;align-items:center}
.src .rel svg{width:16px;height:16px;color:var(--muted-foreground);transition:transform .15s}
.src .rel:hover svg{transform:translateX(2px)}
.src .rel p{font-size:14px;color:var(--muted-foreground)}

.src .page-foot{padding:64px 0 96px;text-align:center;font-size:12px;color:var(--muted-foreground);line-height:1.7}

/* Mobile result bar */
.src .mbar{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:50;display:none;align-items:center;justify-content:space-between;gap:12px;padding:8px 8px 8px 14px;background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);border:1px solid var(--border);border-radius:12px;box-shadow:0 10px 30px -10px rgba(0,0,0,.2);transform:translateY(calc(100% + 24px));opacity:0;transition:transform .25s ease,opacity .25s ease}
.src .mbar.show{transform:none;opacity:1}
.src .mbar-num{font-size:20px;font-weight:600;letter-spacing:-0.03em;font-variant-numeric:tabular-nums;line-height:1.1}
.src .mbar-label{font-size:12px;color:var(--muted-foreground);line-height:1.2}

.src #inputsCard{position:sticky;top:88px}
@media (max-width:900px){
  .src .calc{grid-template-columns:1fr}
  .src #inputsCard{position:static}
}
@media (max-width:767px){
  .src .hero{padding:44px 0 32px}
  .src .hero-actions{flex-direction:column;align-items:stretch;max-width:340px;margin-left:auto;margin-right:auto}
  .src .hero-actions .btn{height:44px}
  .src .card-header{padding:20px 20px 0}
  .src .card-content{padding:20px}
  .src .card-footer{padding:14px 20px;flex-direction:column;align-items:stretch;text-align:center}
  .src .card-footer .btn{height:44px}
  .src .input{height:44px;font-size:16px}
  .src .toggle{height:42px;font-size:14px}
  .src .slider{height:28px}
  .src .slider::-webkit-slider-thumb{width:24px;height:24px;margin-top:-9px}
  .src .slider::-moz-range-thumb{width:22px;height:22px}
  .src .stats{grid-template-columns:1fr 1fr}
  .src .stat:nth-child(3){grid-column:span 2;border-left:0;border-top:1px solid var(--border)}
  .src .tabs-list{display:flex;width:100%}
  .src .scen-table th,.src .scen-table td{padding-left:10px;padding-right:10px;font-size:13px}
  .src .tab{flex:1;height:100%}
  .src .section{padding-top:72px}
  .src .related{grid-template-columns:1fr}
  .src .steps{margin-left:12px;padding-left:28px}
  .src .steps li::before{left:-45px}
  .src .code pre{font-size:14px}
  .src .mbar{display:flex}
  .src .page-foot{padding-bottom:120px}
}
@media (prefers-reduced-motion:reduce){
  .src,.src *{transition:none!important}
}