/* GraySpark premium tools — namespaced under .gs so it CANNOT collide with an
   existing site's own .tool / .btn / .card classes. Drop-in safe. */
.gs{
  --brand:#1f4d3d; --brand-deep:#132a24; --brand-tint:#eef4f1;
  --accent:#b45309; --accent-deep:#92400e;
  --ink:#101614; --ink-2:#37443f; --ink-3:#58655f;
  --line:#e2e8e5; --paper:#fff; --paper-2:#f7f9f8;
  --r:14px; --r-sm:9px;
  --shadow-1:0 1px 2px rgba(16,22,20,.05),0 2px 8px rgba(16,22,20,.05);
  --shadow-2:0 2px 6px rgba(16,22,20,.06),0 12px 32px rgba(16,22,20,.09);
  --shadow-3:0 8px 20px rgba(16,22,20,.10),0 30px 60px rgba(16,22,20,.13);
  --ease:cubic-bezier(.22,.61,.36,1); --ease-out:cubic-bezier(.16,1,.3,1);
  --dur:.55s; --dur-fast:.2s;
  --max-read:68ch;
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  line-height:1.62;
}
.gs *,.gs *::before,.gs *::after{box-sizing:border-box}
.gs h3{line-height:1.14;letter-spacing:-.022em;margin:0 0 .5em;font-weight:750}
.gs p{margin:0 0 1.05em}
.gs :focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
.gs .lead{font-size:1.05rem;color:var(--ink-2);max-width:var(--max-read)}
@keyframes stepIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.gs .eyebrow{font-size:.76rem;font-weight:750;letter-spacing:.13em;text-transform:uppercase;
  color:var(--brand);margin:0 0 .75rem;display:block;}
.gs .btn{--bg:var(--brand);--fg:#fff;
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.86rem 1.5rem;border-radius:var(--r-sm);border:0;cursor:pointer;
  background:var(--bg);color:var(--fg);font-weight:700;font-size:.97rem;
  text-decoration:none;letter-spacing:-.01em;position:relative;overflow:hidden;
  transition:transform var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease),background var(--dur-fast);
  box-shadow:0 1px 2px rgba(16,22,20,.12);}
.gs .btn::after{content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,transparent 38%,rgba(255,255,255,.28) 50%,transparent 62%);
  transform:translateX(-115%);transition:transform .62s var(--ease-out);}
.gs .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.gs .btn:hover::after{transform:translateX(115%)}
.gs .btn:active{transform:translateY(0)}
.gs .btn-accent{--bg:var(--accent)}
.gs .btn-accent:hover{background:var(--accent-deep)}
.gs .btn-ghost{--bg:transparent;--fg:var(--brand-deep);box-shadow:inset 0 0 0 1.5px var(--line)}
.gs .btn-ghost:hover{box-shadow:inset 0 0 0 1.5px var(--brand)}
.gs .btn-lg{padding:1.05rem 1.9rem;font-size:1.04rem}
.gs .btn-block{width:100%}
.gs .btn[disabled]{opacity:.45;pointer-events:none}
.gs .tool{background:var(--paper);color:var(--ink);
  border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow-3);overflow:hidden;max-width:640px;margin-inline:auto;
  container-type:inline-size;}
.gs .tool .eyebrow{color:var(--brand)}
.gs .tool-q, .gs .tool-body, .gs .opt, .gs .res-row, .gs .res .lead, .gs .drop b{color:var(--ink)}
.gs .tool-hd{padding:1.25rem 1.4rem;border-bottom:1px solid var(--line);background:var(--paper-2)}
.gs .tool-hd h3{margin:0;font-size:1.12rem}
.gs .tool-hd p{margin:.25rem 0 0;font-size:.88rem;color:var(--ink-3)}
.gs .tool-bar{height:3px;background:var(--line);position:relative;overflow:hidden}
.gs .tool-bar i{position:absolute;inset:0 auto 0 0;background:var(--accent);width:0;
  transition:width .45s var(--ease-out)}
.gs .tool-body{padding:clamp(1.25rem,3vw,1.75rem)}
.gs .tool-step{display:none;animation:stepIn .42s var(--ease-out) both}
.gs .tool-step.is-on{display:block}
.gs .tool-q{font-size:1.14rem;font-weight:750;letter-spacing:-.02em;margin:0 0 .3rem}
.gs .tool-help{font-size:.88rem;color:var(--ink-3);margin:0 0 1.15rem}
.gs .opts{display:grid;gap:.6rem}
.gs .opts.cols{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
.gs .opt{display:flex;align-items:center;gap:.75rem;text-align:left;width:100%;
  padding:.9rem 1.05rem;border:1.5px solid var(--line);border-radius:var(--r-sm);
  background:var(--paper);cursor:pointer;font-weight:600;font-size:.97rem;
  transition:border-color var(--dur-fast),background var(--dur-fast),transform var(--dur-fast);}
.gs .opt:hover{border-color:var(--brand);background:var(--brand-tint)}
.gs .opt:active{transform:scale(.99)}
.gs .opt.is-sel{border-color:var(--brand);background:var(--brand-tint);box-shadow:inset 0 0 0 1px var(--brand)}
.gs .opt small{display:block;font-weight:500;color:var(--ink-3);font-size:.83rem;margin-top:.1rem}
.gs .opt-k{width:26px;height:26px;flex:none;border-radius:7px;background:var(--brand-tint);color:var(--brand);
  display:grid;place-items:center;font-size:.78rem;font-weight:800}
.gs .opt.is-sel .opt-k{background:var(--brand);color:#fff}
.gs .fld{margin-bottom:1rem}
.gs .fld label{display:block;font-weight:650;font-size:.9rem;margin-bottom:.35rem}
.gs .fld input, .gs .fld select, .gs .fld textarea{width:100%;padding:.8rem .95rem;border:1.5px solid var(--line);border-radius:var(--r-sm);
  background:var(--paper);font:inherit;font-size:1rem;transition:border-color var(--dur-fast),box-shadow var(--dur-fast);}
.gs .fld textarea{resize:vertical;min-height:3.4rem}
.gs .fld input:focus, .gs .fld select:focus, .gs .fld textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,77,61,.12);outline:0}
.gs .tool-nav{display:flex;gap:.6rem;margin-top:1.25rem;align-items:center}
.gs .tool-back{background:0;border:0;color:var(--ink-3);font-weight:650;cursor:pointer;padding:.5rem .2rem;font-size:.9rem}
.gs .tool-back:hover{color:var(--ink)}
.gs .hp{position:absolute!important;left:-9999px;opacity:0;height:0;width:0}
.gs .drop{border:2px dashed #c9d6d1;border-radius:var(--r);padding:1.8rem 1.2rem;text-align:center;
  background:var(--paper-2);cursor:pointer;transition:border-color var(--dur-fast),background var(--dur-fast);}
.gs .drop:hover, .gs .drop.is-over{border-color:var(--brand);background:var(--brand-tint)}
.gs .drop b{display:block;font-size:1rem}
.gs .drop small{color:var(--ink-3)}
.gs .drop-prev{margin-top:1rem;border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line)}
.gs .drop-prev img{width:100%;max-height:230px;object-fit:cover}
.gs .res{text-align:center}
.gs .res-fig{font-size:clamp(2.05rem,1.3rem + 3vw,3.15rem);font-weight:800;letter-spacing:-.04em;
  color:var(--brand-deep);line-height:1.05;font-variant-numeric:tabular-nums;margin:.35rem 0 .2rem;}
.gs .res-sub{color:var(--ink-3);font-size:.92rem;margin:0 0 1.25rem}
.gs .res-rows{text-align:left;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;margin-bottom:1.25rem}
.gs .res-row{display:flex;justify-content:space-between;gap:1rem;padding:.72rem 1rem;font-size:.93rem}
.gs .res-row+.res-row{border-top:1px solid var(--line)}
.gs .res-row:nth-child(odd){background:var(--paper-2)}
.gs .res-row b{font-variant-numeric:tabular-nums}
.gs .flag{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem .9rem;border-radius:100px;
  font-weight:700;font-size:.88rem;margin-bottom:.75rem}
.gs .flag-red{background:#fdecec;color:#a4212a}
.gs .flag-amber{background:#fdf3e3;color:#8a5309}
.gs .flag-green{background:#e8f5ee;color:#1a6340}
.gs .note{font-size:.82rem;color:var(--ink-3);line-height:1.5;margin-top:1rem}
[data-reveal]{opacity:0;transform:translateY(18px);
  transition:opacity var(--dur) var(--ease-out),transform var(--dur) var(--ease-out);
  will-change:opacity,transform;}
[data-reveal].in{opacity:1;transform:none;will-change:auto}
[data-stagger]>*{opacity:0;transform:translateY(16px);
  transition:opacity var(--dur) var(--ease-out),transform var(--dur) var(--ease-out);}
[data-stagger].in>*{opacity:1;transform:none}
[data-stagger].in>*:nth-child(1){transition-delay:0ms}
[data-stagger].in>*:nth-child(2){transition-delay:70ms}
[data-stagger].in>*:nth-child(3){transition-delay:140ms}
[data-stagger].in>*:nth-child(4){transition-delay:210ms}
[data-stagger].in>*:nth-child(5){transition-delay:280ms}
[data-stagger].in>*:nth-child(6){transition-delay:350ms}
[data-stagger].in>*:nth-child(n+7){transition-delay:420ms}
/* Motion — unprefixed: [data-reveal] cannot collide with existing classes. */
.no-js [data-reveal],.no-js [data-stagger]>*{opacity:1!important;transform:none!important}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .gs *,.gs *::before,.gs *::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  [data-reveal],[data-stagger]>*{opacity:1!important;transform:none!important}
  .gs .btn::after{display:none}
}