:root{
  --ink:#251f21; --ink2:#585254; --ink4:#9a9496; --hairline:#eae9ea;
  --sand:#f4efec; --page:#ffffff; --teal:#3f7d6c; --teal-strong:#2f6053;
  --red:#d92d3a; --amber:#8a6d1d; --amber-bg:#fbf4e0; --teal-bg:#eef5f2;
  --radius:10px; --maxw:760px;
}
.idspa *{box-sizing:border-box}
.idspa h1{font-size:1.75rem;line-height:1.25;margin:.2em 0 .4em;letter-spacing:-0.01em}
.idspa h2{font-size:1.25rem;margin:2em 0 .5em}
.idspa h3{font-size:1.05rem;margin:1.5em 0 .4em}
.idspa p{margin:.6em 0}
.idspa a{color:var(--teal-strong)}
.idspa img{max-width:100%}
.idspa .brand{font-weight:700;white-space:nowrap;text-decoration:none;color:var(--ink);font-size:1.05rem}
.idspa .brand span{color:var(--teal-strong)}
.idspa nav.site a{margin-left:16px;text-decoration:none;color:var(--ink2);font-size:.95rem}
.idspa nav.site a:hover{color:var(--ink)}
.idspa .page-body{padding:28px 0 48px}
.idspa .lede{font-size:1.1rem;color:var(--ink2);max-width:60ch}
.idspa .crumb{font-size:.85rem;color:var(--ink4);margin-bottom:6px}
.idspa .crumb a{color:var(--ink4)}
.idspa .req-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.97rem}
.idspa .req-table th, .idspa .req-table td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--hairline);vertical-align:top}
.idspa .req-table th{width:38%;color:var(--ink2);font-weight:600}
.idspa .notebox{border:1px solid var(--hairline);border-radius:var(--radius);padding:14px 16px;margin:16px 0;font-size:.95rem}
.idspa .notebox.warn{background:var(--amber-bg);border-color:#ead9a8}
.idspa .notebox.info{background:var(--teal-bg);border-color:#cfe3da}
.idspa .notebox p{margin:.3em 0}
.idspa .steps{counter-reset:st;list-style:none;padding:0;margin:14px 0}
.idspa .steps li{counter-increment:st;position:relative;padding:6px 0 6px 40px;margin:0}
.idspa .steps li::before{content:counter(st);position:absolute;left:0;top:8px;width:26px;height:26px;border-radius:50%;background:var(--teal);color:#fff;font-size:.85rem;font-weight:600;display:flex;align-items:center;justify-content:center}
.idspa .faq details{border-top:1px solid var(--hairline);padding:10px 0}
.idspa .faq details:last-child{border-bottom:1px solid var(--hairline)}
.idspa .faq summary{cursor:pointer;font-weight:600;padding:4px 0}
.idspa .faq details p{margin:.5em 0 .4em;color:var(--ink2)}
.idspa .sources{font-size:.9rem;color:var(--ink2)}
.idspa .sources li{margin:4px 0}
.idspa .checked{font-size:.85rem;color:var(--ink4)}
.idspa .cards{display:grid;grid-template-columns:1fr;gap:12px;margin:16px 0}
@media(min-width:640px){.idspa .cards{grid-template-columns:1fr 1fr}}
.idspa .card{border:1px solid var(--hairline);border-radius:var(--radius);padding:14px 16px;text-decoration:none;color:var(--ink);display:block;background:#fff}
.idspa .card:hover{border-color:var(--teal);box-shadow:0 1px 4px rgba(0,0,0,.06)}
.idspa .card .t{font-weight:650}
.idspa .card .d{font-size:.9rem;color:var(--ink2);margin-top:2px}
.idspa .card .m{font-size:.82rem;color:var(--teal-strong);margin-top:6px;font-weight:600}
.idspa .cathead{margin-top:1.6em;font-size:1.05rem}
.idspa .tool{border:1px solid var(--hairline);border-radius:var(--radius);padding:18px;margin:18px 0;background:#fff}
.idspa .tool h2{margin-top:0}
.idspa .ip-drop{border:2px dashed #c8c2c4;border-radius:var(--radius);padding:34px 16px;text-align:center;color:var(--ink2);cursor:pointer;background:#fcfafa}
.idspa .ip-drop:hover, .idspa .ip-drop.drag{border-color:var(--teal);background:var(--teal-bg)}
.idspa .ip-drop .big{font-size:1.05rem;font-weight:600;color:var(--ink)}
.idspa .ip-drop small{display:block;margin-top:6px;color:var(--ink4)}
.idspa .ip-error{background:#fdecee;border:1px solid #f3c1c6;color:var(--red);border-radius:var(--radius);padding:10px 14px;margin:12px 0;font-size:.93rem}
.idspa .ip-stage-wrap{display:flex;flex-direction:column;align-items:center;gap:12px}
.idspa .ip-stage{position:relative;overflow:hidden;border-radius:6px;background:#fff;touch-action:none;user-select:none;-webkit-user-select:none;cursor:grab;max-width:100%;box-shadow:0 0 0 1px var(--hairline)}
.idspa .ip-stage:active{cursor:grabbing}
.idspa .ip-stage img{position:absolute;top:0;left:0;transform-origin:0 0;pointer-events:none;max-width:none;-webkit-user-drag:none}
.idspa .ip-guides{position:absolute;inset:0;pointer-events:none}
.idspa .ip-controls{width:100%;max-width:420px;display:flex;flex-direction:column;gap:10px}
.idspa .ip-row{display:flex;align-items:center;gap:10px}
.idspa .ip-row label{font-size:.88rem;color:var(--ink2);min-width:56px}
.idspa .ip-row input[type=range]{flex:1;accent-color:var(--teal)}
.idspa .btn{display:inline-block;border:0;border-radius:8px;padding:11px 20px;font-size:1rem;font-weight:600;cursor:pointer;text-decoration:none;text-align:center}
.idspa .btn-primary{background:var(--teal);color:#fff}
.idspa .btn-primary:hover{background:var(--teal-strong)}
.idspa .btn-secondary{background:#fff;color:var(--ink);border:1px solid var(--hairline)}
.idspa .btn-secondary:hover{border-color:var(--ink4)}
.idspa .btn[disabled]{opacity:.5;cursor:not-allowed}
.idspa .btn-sm{padding:7px 12px;font-size:.9rem}
.idspa .ip-fmtnote{background:var(--amber-bg);border:1px solid #ead9a8;border-radius:var(--radius);padding:10px 14px;margin:12px 0 0;font-size:.92rem;font-weight:500}
.idspa .ip-result{display:flex;gap:16px;flex-wrap:wrap;align-items:flex-start;margin-top:6px}
.idspa .ip-preview{width:140px;border:1px solid var(--hairline);border-radius:6px;background:
 repeating-conic-gradient(#f0ecea 0% 25%, #fff 0% 50%) 50% / 16px 16px}
.idspa .ip-checks{list-style:none;padding:0;margin:0;font-size:.95rem;flex:1;min-width:220px}
.idspa .ip-checks li{padding:4px 0 4px 26px;position:relative}
.idspa .ip-checks li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;background:var(--teal)}
.idspa .ip-checks li::after{content:"";position:absolute;left:5px;top:10px;width:5px;height:8px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(40deg)}
.idspa .ip-checks li.info{color:#5a6572}
.idspa .ip-checks li.info::before{background:#aab4c0}
.idspa .ip-checks li.info::after{content:"i";border:0;color:#fff;left:5px;top:4px;transform:none;font-weight:700;font-size:.7rem;font-style:normal}
.idspa .ip-checks li.bad{color:var(--red)}
.idspa .ip-checks li.bad::before{background:var(--red)}
.idspa .ip-checks li.bad::after{content:"×";border:0;color:#fff;left:4px;top:2px;transform:none;font-weight:700}
.idspa .privacy-line{font-size:.85rem;color:var(--ink4);margin-top:10px}
.idspa .pay-overlay{position:fixed;inset:0;background:rgba(37,31,33,.5);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50;overflow-y:auto}
.idspa .pay-card{background:#fff;border-radius:14px;max-width:400px;width:100%;padding:24px;box-shadow:0 8px 30px rgba(0,0,0,.18);margin:auto;max-height:520px;overflow-y:auto}
.idspa .pay-card h3{margin:0 0 6px;font-size:1.2rem}
.idspa .pay-price{font-size:1.6rem;font-weight:700;margin:8px 0}
.idspa .pay-test{display:inline-block;background:var(--amber-bg);color:var(--amber);font-size:.78rem;font-weight:700;padding:3px 8px;border-radius:20px;margin-bottom:8px;letter-spacing:.02em}
.idspa .pay-card ul{margin:8px 0 16px;padding-left:20px;color:var(--ink2);font-size:.93rem}
.idspa .pay-card .btn{width:100%}
.idspa .pay-close{background:none;border:0;float:right;font-size:1.2rem;cursor:pointer;color:var(--ink4);line-height:1}
.idspa .legal{margin-top:18px;color:var(--ink4);font-size:.8rem}
.idspa .related-list{columns:1;font-size:.95rem}
@media(min-width:640px){.idspa .related-list{columns:2}}
.idspa .related-list a{display:inline-block;padding:2px 0;text-decoration:none}
.idspa .hero{padding:36px 0 8px}
.idspa .hero h1{font-size:2.1rem;max-width:20ch}
.idspa .searchline{margin:14px 0 4px}
.idspa .searchline input{width:100%;max-width:420px;padding:11px 14px;border:1px solid var(--hairline);border-radius:8px;font-size:1rem}
/* pay overlay lives on document.body, outside .idspa */
.pay-overlay{position:fixed;inset:0;background:rgba(37,31,33,.5);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50;overflow-y:auto}
.pay-card{background:#fff;border-radius:14px;max-width:400px;width:100%;padding:24px;box-shadow:0 8px 30px rgba(0,0,0,.18);margin:auto;max-height:520px;overflow-y:auto}
.pay-card h3{margin:0 0 6px;font-size:1.2rem}
.pay-price{font-size:1.6rem;font-weight:700;margin:8px 0}
.pay-test{display:inline-block;background:var(--amber-bg);color:var(--amber);font-size:.78rem;font-weight:700;padding:3px 8px;border-radius:20px;margin-bottom:8px;letter-spacing:.02em}
.pay-card ul{margin:8px 0 16px;padding-left:20px;color:var(--ink2);font-size:.93rem}
.pay-card .btn{width:100%}
.pay-close{background:none;border:0;float:right;font-size:1.2rem;cursor:pointer;color:var(--ink4);line-height:1}

/* use-case subpages */
.idspa .sec{margin:22px 0 8px;font-size:1.15rem}
.idspa .crumb a{color:var(--teal-strong);text-decoration:none}
.idspa .steps{list-style:decimal;padding-left:1.4em;margin:14px 0}
.idspa .steps li{padding:4px 0;margin:0}
.idspa .steps li::before{content:none}
.idspa .q{font-weight:600}
.idspa .g-brand img{height:26px;display:block}
.idspa .req-table{width:100%;border-collapse:collapse;margin:10px 0 6px;font-size:.95rem}
.idspa .req-table th{text-align:left;vertical-align:top;padding:7px 10px 7px 0;color:var(--ink2);font-weight:600;white-space:nowrap}
.idspa .req-table td{padding:7px 0}
.idspa .req-table tr{border-bottom:1px solid var(--hairline)}
.idspa .cfg .ip-row{display:flex;align-items:center;gap:10px;margin:8px 0}
.idspa .cfg input{width:110px}