/* PAYATE IP Subnet Calculator — scoped under #sub. */
@font-face{font-family:"PoppinsFB";src:local("Segoe UI Semibold"),local("Segoe UI"),local("Roboto Medium"),local("Roboto"),local("Helvetica Neue"),local("Arial");size-adjust:107%;ascent-override:98%;descent-override:32.7%;line-gap-override:0%}
body{margin:0;background:#f4f7fb;color:#14233c;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased}
#sub{--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--acc:#7c5cff;--acc-d:#6344e8;max-width:820px;margin:0 auto;padding:18px 16px 40px}
#sub h1,#sub h2{font-family:Poppins,"PoppinsFB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
#sub code{background:#eef2f8;padding:1px 5px;border-radius:4px;font-size:.9em;font-family:var(--mono)}
#sub .sub-hero{background:#fff;border:1px solid #e6ecf5;border-radius:16px;padding:24px;box-shadow:0 1px 2px rgba(15,27,45,.05);margin-bottom:16px}
#sub .sub-hero h1{margin:0 0 8px;font-size:25px;line-height:1.2;color:#0f1b2d;font-weight:700}
#sub .sub-hero p{margin:0;font-size:14px;line-height:1.7;color:#4a5b73;max-width:700px}
#sub .sub-card{background:#fff;border:1px solid #e6ecf5;border-radius:14px;padding:18px;box-shadow:0 1px 2px rgba(15,27,45,.05);margin-bottom:16px}
#sub .sub-grid{display:grid;grid-template-columns:2fr 1fr 2fr;gap:14px}
#sub .sub-field{display:flex;flex-direction:column}
#sub label{display:block;font-size:12.5px;font-weight:600;color:#5a6b83;margin:0 0 6px}
#sub input,#sub select{width:100%;box-sizing:border-box;border:1px solid #d7deea;border-radius:10px;padding:11px 14px;font-size:14px;color:#14233c;background:#fbfcfe;font-family:var(--mono)}
#sub select{font-family:inherit;cursor:pointer}
#sub input:focus,#sub select:focus{outline:none;border-color:var(--acc);background:#fff;box-shadow:0 0 0 3px rgba(124,92,255,.14)}
#sub .sub-actions{display:flex;align-items:center;gap:14px;margin-top:12px;flex-wrap:wrap}
#sub .sub-link{background:none;border:0;color:var(--acc-d);font-size:12.5px;font-weight:600;cursor:pointer;padding:0}
#sub .sub-link:hover{text-decoration:underline}
#sub .sub-err{margin:14px 0 0;background:#fdecec;border:1px solid #f4c7c7;color:#b42020;border-radius:10px;padding:12px 14px;font-size:13.5px;line-height:1.6}
#sub .sub-out{margin-top:16px}
#sub .sub-res{border:1px solid #e6ecf5;border-radius:12px;overflow:hidden}
#sub .sub-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:11px 16px;border-top:1px solid #eef2f8}
#sub .sub-row:first-child{border-top:0}
#sub .sub-row:nth-child(even){background:#fafbfe}
#sub .sub-k{font-size:13px;font-weight:600;color:#5a6b83}
#sub .sub-v{font-size:14px;color:#14233c;font-family:var(--mono);text-align:right;word-break:break-all}
#sub .sub-info{background:#fff;border:1px solid #e6ecf5;border-radius:14px;padding:18px 22px;box-shadow:0 1px 2px rgba(15,27,45,.05);margin-bottom:16px}
#sub .sub-info h2{margin:0 0 10px;font-size:17px;color:#0f1b2d}
#sub .sub-info ol{margin:0 0 10px;padding-left:20px}
#sub .sub-info li{font-size:13.5px;line-height:1.8;color:#4a5b73}
#sub .sub-info p{margin:0;font-size:13.5px;line-height:1.8;color:#4a5b73}
#sub .sub-faq{background:#fff;border:1px solid #e6ecf5;border-radius:16px;padding:20px 22px;box-shadow:0 1px 2px rgba(15,27,45,.05)}
#sub .sub-faq h2{margin:0 0 10px;font-size:19px;color:#0f1b2d}
#sub .sub-faq details{border-top:1px solid #eef2f8;padding:2px 0}
#sub .sub-faq details:first-of-type{border-top:0}
#sub .sub-faq summary{cursor:pointer;list-style:none;padding:12px 26px 12px 2px;position:relative;font-weight:600;font-size:14.5px;color:#14233c}
#sub .sub-faq summary::-webkit-details-marker{display:none}
#sub .sub-faq summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);font-size:18px;color:#5a6782}
#sub .sub-faq details[open] summary::after{content:"\2212"}
#sub .sub-faq details p{margin:0 2px 12px;font-size:13.5px;line-height:1.7;color:#4a5b73}
@media (max-width:560px){#sub .sub-grid{grid-template-columns:1fr}}
/* Shared More PAYATE tools related section */
.pyt-rel{max-width:820px;margin:16px auto;padding:20px 22px;background:#fff;border:1px solid #e6ecf5;border-radius:14px;box-shadow:0 1px 2px rgba(15,27,45,.05);font-family:Poppins,"PoppinsFB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:#14233c}
.pyt-rel h2{margin:0 0 12px;font-size:18px;color:#0f1b2d}
.pyt-rel .prg{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px}
.pyt-rel a{display:block;text-decoration:none;border:1px solid #e6ecf5;border-radius:10px;padding:12px 14px;background:#fbfcfe;transition:border-color .15s,background .15s}
.pyt-rel a:hover{border-color:#7c5cff;background:#f5f2ff}
.pyt-rel .prt{display:block;font-weight:600;font-size:14px;color:#14233c;margin-bottom:2px}
.pyt-rel .prd{display:block;font-size:12px;line-height:1.4;color:#5a6782}