/* ============================================================================
 * Uptimia — Free Subnet Calculator (/subnet-calculator)
 * Mechanically generated from docs/subnet-calculator-mockup.html <style> by
 * scratchpad/snc-css.php: every selector scoped under .snc (tokens live on the
 * wrapper, not :root), mockup chrome (topbar/nav/dock/foot) and the unused
 * checking-view rules dropped, keyframes renamed snc-*.
 * Hand-written additions live in the block at the END of this file.
 * ==========================================================================*/
.snc *,.snc *::before,.snc *::after{box-sizing:border-box;margin:0;padding:0}
.snc{font-family:var(--sans);
  background:var(--bg-2);
  color:var(--ink);
  font-size:15px;line-height:1.55;font-weight:450;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-feature-settings:'cv11','ss01','ss03','tnum';}
.snc a{color:inherit;text-decoration:none}
.snc button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}
.snc input,.snc select{font:inherit;color:inherit}
.snc svg{display:block}
.snc .wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.snc .mono{font-family:var(--mono)}
.snc .micro{font-size:11.5px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--soft)}
.snc .on-dark .accent-i{color:var(--accent-bright)}
.snc .testbar{max-width:640px;margin:34px auto 0;
  display:flex;align-items:stretch;gap:0;
  background:#fff;border-radius:12px;padding:6px;
  box-shadow:0 1px 0 rgba(255,255,255,.06), 0 24px 60px -24px rgba(0,0,0,.55), 0 0 0 1px rgba(255,255,255,.08);}
.snc .testbar .field{flex:1;display:flex;align-items:center;gap:11px;padding:0 8px 0 14px;min-width:0}
.snc .testbar .field svg{color:var(--soft);flex:none}
.snc .testbar input{flex:1;border:0;outline:0;background:none;min-width:0;font-size:16.5px;font-weight:450;color:var(--ink);height:48px}
.snc .testbar input::placeholder{color:var(--soft)}
.snc .testbar .btn-run{display:inline-flex;align-items:center;gap:8px;padding:0 22px;border-radius:8px;
  background:var(--cta);color:var(--cta-ink);font-size:15px;font-weight:650;letter-spacing:-.01em;white-space:nowrap;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22), 0 6px 18px -6px rgba(78,201,126,.55);
  transition:filter .15s,transform .1s;}
.snc .testbar .btn-run:hover{filter:brightness(1.05)}
.snc .testbar .btn-run:active{transform:scale(.99)}
.snc .sec{padding:72px 0 0}
.snc .sec:last-child{padding-bottom:72px}
.snc .sec-head{max-width:640px;margin:0 0 34px}
.snc .sec-head.center{margin:0 auto 38px;text-align:center}
.snc .sec-head .micro{display:block;margin-bottom:12px;color:var(--accent)}
.snc .sec-head h2{font-size:31px;line-height:1.15;font-weight:700;letter-spacing:-.022em;color:var(--ink)}
.snc .sec-head p{margin-top:12px;font-size:15.5px;color:var(--muted)}
.snc .note-mono{font-family:var(--mono);font-size:12px;color:var(--soft)}
.snc .duo{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
.snc .duo-side h3{font-size:22px;line-height:1.2;font-weight:700;letter-spacing:-.018em;margin-bottom:10px}
.snc .duo-side p{font-size:14.5px;line-height:1.65;color:var(--muted);margin-bottom:12px}
.snc .duo-side ul{list-style:none;display:grid;gap:8px;margin:16px 0 20px}
.snc .duo-side li{display:flex;gap:9px;font-size:13.5px;color:var(--muted)}
.snc .duo-side li svg{color:var(--accent);flex:none;margin-top:3px}
.snc .port-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px solid var(--bg-3)}
.snc .port-row:last-child{border-bottom:0}
.snc .port-row .pt{flex:none;min-width:170px;font-family:var(--mono);font-size:12px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.snc .port-row .pd{flex:1;font-size:12.5px;color:var(--muted)}
.snc .cheat{max-width:860px;margin:0 auto;display:grid;gap:8px}
.snc .ch-row{display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:12px 16px;flex-wrap:wrap}
.snc .ch-row b{flex:1;font-size:13.5px;font-weight:600;letter-spacing:-.01em;color:var(--ink-2);min-width:190px}
.snc .cmd{display:inline-flex;align-items:center;gap:8px;max-width:100%;
  font-family:var(--mono);font-size:11.5px;color:var(--ink-3);
  background:var(--bg-3);border:1px solid var(--line-2);border-radius:7px;padding:5px 10px;}
.snc .cmd .c{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.snc .cmd button{color:var(--accent);font-weight:600;font-size:11px;flex:none}
.snc .faq{max-width:760px;margin:0 auto}
.snc .faq-item{border-bottom:1px solid var(--line)}
.snc .faq-item:first-child{border-top:1px solid var(--line)}
.snc .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 2px;text-align:left;font-size:15.5px;font-weight:600;letter-spacing:-.01em;color:var(--ink-2)}
.snc .faq-q .pm{flex:none;width:22px;height:22px;border-radius:50%;border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;color:var(--soft);font-size:14px;transition:transform .18s var(--ease)}
.snc .faq-item.open .pm{transform:rotate(45deg);color:var(--accent);border-color:var(--accent-line);background:var(--accent-soft)}
/* Animated on grid-template-rows, NOT max-height. Do NOT reintroduce a fixed
   cap: these answers are long (the VLSM one measures 544px at 320px wide) and
   a 460px max-height silently cut 84px off it — the text was simply gone, with
   no scrollbar and no hint that anything was missing. 0fr→1fr animates the
   same way and can never be shorter than the content. */
.snc .faq-a{display:grid;grid-template-rows:0fr;overflow:hidden;transition:grid-template-rows .25s var(--ease)}
.snc .faq-a p{min-height:0;overflow:hidden;padding:0 40px 0 2px;font-size:14.5px;line-height:1.65;color:var(--muted)}
/* The bottom padding lives here rather than on the <p>, so it collapses with
   the row when closed instead of leaving an 18px gap under every question. */
.snc .faq-a p::after{content:"";display:block;height:18px}
.snc .faq-item.open .faq-a{grid-template-rows:1fr}
.snc .tools-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.snc .tool-link{display:flex;flex-direction:column;gap:5px;padding:17px 18px 15px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);transition:border-color .15s, box-shadow .15s}
.snc .tool-link:hover{border-color:var(--accent-line);box-shadow:0 8px 24px -14px rgba(15,23,42,.18)}
.snc .tool-link b{font-size:14px;font-weight:600;letter-spacing:-.01em;color:var(--ink-2);display:flex;align-items:center;gap:7px}
.snc .tool-link b svg{color:var(--accent)}
.snc .tool-link span{font-size:12.5px;color:var(--soft)}
.snc .tool-link.featured{border-color:var(--accent-line);background:linear-gradient(180deg,#fff,var(--accent-soft))}
.snc .band{margin-top:80px;background:var(--dark);color:var(--dark-ink);position:relative;overflow:hidden}
.snc .band::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 640px 320px at 82% 130%, rgba(78,201,126,.14), transparent 60%);pointer-events:none}
.snc .band-in{max-width:1120px;margin:0 auto;padding:58px 24px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;position:relative}
.snc .band h2{font-size:30px;line-height:1.14;font-weight:700;letter-spacing:-.022em;color:#fff}
.snc .band p{margin-top:12px;font-size:15px;line-height:1.6;color:var(--dark-muted);max-width:46ch}
.snc .band-trust{display:flex;gap:20px;margin-top:14px;font-family:var(--mono);font-size:11.5px;color:var(--dark-soft)}
.snc .band-trust span{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.snc .band-trust svg{color:var(--accent-bright)}
.snc .rec-note{margin-top:10px;font-size:12.5px;color:var(--muted)}
.snc .rec-note b{color:var(--ink-2)}
.snc .tr-row{display:flex;align-items:center;gap:10px;padding:7.5px 0;border-bottom:1px solid var(--bg-3);font-size:12.5px}
.snc .tr-row:last-child{border-bottom:0}
.snc .tr-row .lkn{flex:none;width:34px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;font-weight:600;background:var(--accent-soft);border:1px solid var(--accent-line);color:var(--accent)}
.snc .tr-row .lkn.free{background:var(--bg-3);border-color:var(--line-2);color:var(--soft);font-weight:500}
.snc .tr-row .lkn.ovr{background:var(--bad-soft);border-color:var(--bad-line);color:var(--bad)}
.snc .tr-row .tm{flex:none;font-family:var(--mono);font-size:12px;color:var(--ink-2);font-weight:600;white-space:nowrap}
.snc .tr-row .td{flex:1;min-width:0;font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.snc .tr-row .td b{color:var(--ink-2);font-weight:600}
.snc .tree-foot{margin-top:12px;font-size:13px;color:var(--muted)}
.snc .tree-foot b{color:var(--ink-2)}
.snc .opp:last-child{border-bottom:0}
.snc .sev.ok{background:var(--accent)}
.snc .opp p b{display:inline;font-size:inherit;color:var(--ink-2)}
.snc .opp p .mono{font-size:11.5px;color:var(--ink-3)}
.snc .opp .act{display:inline-block;margin-top:8px;font-family:var(--mono);font-size:11px;font-weight:600;color:var(--accent);background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:6px;padding:2px 8px;white-space:nowrap}
.snc .opp .act.warn{color:var(--warn);background:var(--warn-soft);border-color:var(--warn-line)}
.snc .opp .act.bad{color:var(--bad);background:var(--bad-soft);border-color:var(--bad-line)}
.snc .kv .v.warn{color:var(--warn);font-weight:550}
.snc .kv .v.good{color:var(--accent);font-weight:550}
.snc .deep-link{display:flex;align-items:center;gap:14px;padding:16px 18px;
  border:1px solid var(--accent-line);border-radius:var(--radius-sm);
  background:linear-gradient(180deg,#fff,var(--accent-soft));transition:box-shadow .15s;}
.snc .deep-link:hover{box-shadow:0 10px 26px -16px rgba(0,126,66,.35)}
.snc .deep-link .glyph{flex:none;width:36px;height:36px;border-radius:9px;background:var(--accent-soft);border:1px solid var(--accent-line);color:var(--accent);display:flex;align-items:center;justify-content:center}
.snc .deep-link b{display:block;font-size:13.5px;font-weight:650;color:var(--ink-2)}
.snc .deep-link span{font-size:12px;color:var(--muted)}
.snc .deep-link svg.arr{margin-left:auto;color:var(--accent);flex:none}
@media (max-width:960px){
.snc .duo,.snc .res-grid{grid-template-columns:1fr}
.snc .quad{grid-template-columns:1fr 1fr}
.snc .err-grid{grid-template-columns:1fr 1fr}
.snc .tools-row{grid-template-columns:1fr 1fr}
.snc .band-in{grid-template-columns:1fr;gap:28px}
}
@media (max-width:620px){
.snc .testbar{flex-direction:column;gap:6px}
.snc .testbar .btn-run{height:46px;justify-content:center}
.snc .quad,.snc .err-grid,.snc .tools-row{grid-template-columns:1fr}
.snc .tr-row .td{display:none}
}
.snc .livewrap{max-width:880px;margin:28px auto 0;background:#fff;border-radius:var(--radius);padding:20px 22px 18px;text-align:left;box-shadow:0 1px 0 rgba(255,255,255,.06),0 28px 70px -28px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.08);color:var(--ink)}
.snc .lc-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.snc .lc-head .lc-in{font-family:var(--mono);font-size:14px;font-weight:600;color:var(--ink-2)}
.snc .lc-head .spacer{flex:1}
.snc .lc-note{margin-top:12px;font-size:11.5px;font-family:var(--mono);color:var(--soft);display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.snc .lc-note svg{color:var(--accent)}
.snc .calc-err{border:1px solid var(--bad-line);background:var(--bad-soft);color:var(--bad);border-radius:var(--radius-sm);padding:12px 15px;font-size:13.5px}
.snc .calc-err b{font-family:var(--mono)}
.snc .calc-assume{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;color:var(--warn);background:var(--warn-soft);border:1px solid var(--warn-line);border-radius:6px;padding:2px 8px}
.snc .idgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.snc .idcell{border:1px solid var(--line);border-radius:var(--radius-xs);background:var(--surface);padding:10px 12px;min-width:0}
.snc .idcell .lbl{display:block;font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--soft);margin-bottom:3px}
.snc .idcell .val{font-family:var(--mono);font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.snc .idcell .sub{display:block;font-size:10.5px;color:var(--soft);margin-top:2px}
.snc .idcell.key{background:var(--accent-soft);border-color:var(--accent-line)}
.snc .idcell.key .val{color:var(--accent-2)}
.snc .bits{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;padding:6px 0 2px}
.snc .boct{display:flex;flex-direction:column;gap:5px;align-items:center}
.snc .boct .bval{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--ink-2)}
.snc .boct .bsub{font-size:9.5px;color:var(--soft);font-family:var(--mono)}
.snc .brow{display:flex;gap:2px;align-items:stretch}
.snc .bit{width:21px;height:26px;border-radius:5px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;font-weight:500}
.snc .bit.net{background:var(--accent-soft);border:1px solid var(--accent-line);color:var(--accent-2);font-weight:600}
.snc .bit.host{background:var(--bg-3);border:1px solid var(--line-2);color:var(--soft)}
.snc .seam{width:3px;border-radius:2px;background:var(--accent);margin:0 3px;flex:none}
.snc .boct.seam-after{position:relative}
.snc .boct.seam-after::after{content:'';position:absolute;top:22px;right:-9.5px;width:3px;height:26px;border-radius:2px;background:var(--accent)}
.snc .bitcap{margin-top:10px;font-size:12.5px;color:var(--muted);text-align:center}
.snc .bitcap b{color:var(--ink-2)}
.snc .bitcap .mono{color:var(--accent-2)}
.snc .mf-row{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--bg-3)}
.snc .mf-row:last-child{border-bottom:0}
.snc .mf-row .mfl{flex:none;width:118px;font-size:12px;color:var(--soft)}
.snc .mf-row .mfv{flex:1;font-family:var(--mono);font-size:12.5px;color:var(--ink-2);font-weight:550;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.snc .mf-row button{color:var(--accent);font-weight:600;font-size:11px;flex:none}
.snc .schip{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;font-weight:600;border-radius:6px;padding:3px 9px;border:1px solid var(--line-2);background:var(--bg-3);color:var(--ink-3);white-space:nowrap}
.snc .schip.good{background:var(--accent-soft);color:var(--accent);border-color:var(--accent-line)}
.snc .schip.warn{background:var(--warn-soft);color:var(--warn);border-color:var(--warn-line)}
.snc .vl-base{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px;font-size:13px;color:var(--muted)}
.snc .vl-row{display:flex;align-items:center;gap:8px;padding:5px 0}
.snc .vl-row .vl-name{flex:1;min-width:0;border:1px solid var(--line-2);border-radius:8px;padding:7px 11px;font-size:13px;background:var(--bg-2);outline:none}
.snc .vl-row .vl-hosts{width:84px;border:1px solid var(--line-2);border-radius:8px;padding:7px 11px;font-family:var(--mono);font-size:13px;background:var(--bg-2);outline:none;text-align:right}
.snc .vl-row .hosts-lbl{font-size:12px;color:var(--soft);flex:none}
.snc .vl-row .vl-x{flex:none;width:26px;height:26px;border-radius:7px;border:1px solid var(--line-2);color:var(--soft);font-size:12px;display:flex;align-items:center;justify-content:center}
.snc .vl-row .vl-x:hover{color:var(--bad);border-color:var(--bad-line);background:var(--bad-soft)}
.snc .ghost-lite{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:8px;border:1px solid var(--line-2);color:var(--ink-3);font-size:12.5px;font-weight:550;background:var(--bg-2)}
.snc .ghost-lite:hover{border-color:var(--accent-line);color:var(--accent)}
.snc .vt-wrap{overflow-x:auto}
.snc .vt{width:100%;border-collapse:collapse;font-size:12.5px}
.snc .vt th{font-family:var(--mono);font-size:9.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--soft);text-align:left;padding:6px 9px;border-bottom:1px solid var(--line-2);white-space:nowrap}
.snc .vt td{padding:8.5px 9px;border-bottom:1px solid var(--bg-3);font-family:var(--mono);font-size:12px;color:var(--ink-3);white-space:nowrap}
.snc .vt tr:last-child td{border-bottom:0}
.snc .vt td.nm{font-family:var(--sans);font-weight:600;color:var(--ink-2)}
.snc .vt td .cd{color:var(--accent);font-weight:600}
.snc .vt td.waste{color:var(--soft)}
.snc .vt tr.ovr td{background:var(--bad-soft);color:var(--bad)}
.snc .vt tr.ovr td.nm{color:var(--bad)}
.snc .vl-sum{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:12px;font-size:13px;color:var(--muted)}
.snc .vl-sum b{color:var(--ink-2)}
.snc .fb{display:inline-flex;font-family:var(--mono);font-size:11px;font-weight:600;color:var(--accent-2);background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:6px;padding:3px 9px;white-space:nowrap}
.snc .vl-bad{border:1px solid var(--bad-line);background:var(--bad-soft);border-radius:var(--radius-sm);padding:11px 14px;font-size:13px;color:var(--bad);margin-top:12px}
.snc .vl-bad b{font-family:var(--mono)}
.snc .v6bands{display:flex;height:38px;border-radius:9px;overflow:hidden;border:1px solid var(--line-2)}
.snc .v6bands .b{display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.03em;white-space:nowrap;overflow:hidden;padding:0 6px}
.snc .v6bands .b.p{background:var(--accent-soft);color:var(--accent-2);border-right:2px solid var(--accent)}
.snc .v6bands .b.s{background:#eef4fb;color:#3d6fa8;border-right:2px solid #3d6fa8}
.snc .v6bands .b.i{background:var(--bg-3);color:var(--soft)}
.snc .hexsplit{font-family:var(--mono);font-size:14.5px;font-weight:550;word-break:break-all;line-height:2;letter-spacing:.02em}
.snc .hexsplit .p{color:var(--accent-2);background:var(--accent-soft);border-radius:3px;padding:1px 1px}
.snc .hexsplit .s{color:#3d6fa8;background:#eef4fb;border-radius:3px;padding:1px 1px}
.snc .hexsplit .i{color:var(--soft)}
.snc .txtout{position:relative}
.snc .txtout pre{font-family:var(--mono);font-size:11.5px;line-height:1.8;background:var(--bg-3);border:1px dashed var(--line-2);border-radius:8px;padding:12px 14px;overflow-x:auto;color:var(--ink-3);margin-top:4px}
.snc .exrow{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:14px}
.snc .exrow .exl{font-family:var(--mono);font-size:11px;color:var(--dark-soft);align-self:center}
.snc .exrow button{font-family:var(--mono);font-size:11.5px;color:var(--dark-muted);border:1px solid var(--dark-line-2);border-radius:999px;padding:5px 12px;background:rgba(255,255,255,.03);transition:color .15s,border-color .15s}
.snc .exrow button:hover{color:#fff;border-color:var(--accent-bright)}
@media (max-width:720px){
.snc .idgrid{grid-template-columns:1fr 1fr}
.snc .bit{width:16px;height:22px;font-size:9.5px}
.snc .mf-row .mfl{width:92px}
}

/* ---- hand-written additions ------------------------------------------- */

/* result header, rendered inline under the hero rather than full-bleed dark */
.snc .snc-verdict{background:var(--dark);color:var(--dark-ink);position:relative;overflow:hidden}
.snc .snc-verdict::before{content:'';position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 760px 360px at 18% 145%, rgba(78,201,126,.12), transparent 62%)}
.snc .snc-verdict-in{max-width:1120px;margin:0 auto;padding:34px 24px 36px;position:relative}
.snc .snc-answer{font-size:38px;line-height:1.08;font-weight:700;letter-spacing:-.028em;color:#fff;max-width:760px;margin-top:14px}
.snc .snc-answer .accent-i{color:var(--accent-bright)}
.snc .snc-line{margin-top:14px;font-size:16px;line-height:1.6;color:var(--dark-muted);max-width:74ch}
.snc .snc-line b{color:#fff;font-weight:600}
.snc .snc-line .hl-warn{color:var(--amber-bright);font-weight:600}
.snc .snc-badge{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:6.5px 14px;font-size:12.5px;font-weight:650;letter-spacing:.02em;background:rgba(78,201,126,.14);border:1px solid rgba(78,201,126,.38);color:#7ee2a8;font-family:var(--mono)}
.snc .snc-flags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}

/* the two-column detail grid */

/* the permalink card (light column, unlike the mockup's dark hero chip) */
.snc .permacard{border:1px solid var(--accent-line);background:linear-gradient(180deg,#fff,var(--accent-soft));border-radius:var(--radius);padding:18px}
.snc .permacard .micro{display:block;color:var(--accent);margin-bottom:8px}
.snc .permacard .prow{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line-2);border-radius:8px;padding:8px 12px}
.snc .permacard .prow span{flex:1;min-width:0;font-family:var(--mono);font-size:11.5px;color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.snc .permacard .prow button{flex:none;color:var(--accent);font-weight:600;font-size:11.5px}
.snc .permacard p{margin-top:10px;font-size:12.5px;line-height:1.55;color:var(--muted)}

/* an inline caution, used where a prefix breaks a rule of thumb */
.snc .warnnote{margin-top:12px;border:1px solid var(--warn-line);background:var(--warn-soft);border-radius:var(--radius-sm);padding:11px 14px;font-size:12.5px;line-height:1.6;color:var(--muted)}
.snc .warnnote b{color:var(--warn)}

.snc .chiprow{display:flex;gap:6px;flex-wrap:wrap}
.snc .snc-cmd{font-family:var(--mono);font-size:11px;color:var(--accent);background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:6px;padding:3px 9px}

/* the curated-block index on the landing */
.snc .blockgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.snc .blocklink{display:block;padding:13px 15px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);transition:border-color .15s,box-shadow .15s}
.snc .blocklink:hover{border-color:var(--accent-line);box-shadow:0 8px 24px -14px rgba(15,23,42,.18)}
.snc .blocklink b{display:block;font-family:var(--mono);font-size:13px;font-weight:600;color:var(--ink-2)}
.snc .blocklink span{display:block;margin-top:4px;font-size:11.5px;line-height:1.5;color:var(--soft)}

/* the curated editorial note above a result */
.snc .curnote{border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:14px 18px;font-size:14px;line-height:1.65;color:var(--muted)}

.snc .snc-live-empty{padding:18px;text-align:center;color:var(--soft);font-size:13px}

/* ---- 360px containment (2026-07-29 review) --------------------------------
   Three nowrap flex items shipped with text-overflow:ellipsis but flex:none,
   so they could never shrink and the ellipsis never engaged — their full
   min-content propagated up and forced the .duo grid column to 364px inside a
   360px viewport (clipping everything in that section), while .tr-row .tm and
   the long hero tick clipped themselves. flex-shrink:1 + min-width lets the
   ellipsis actually work; the hero ticks wrap instead (a two-line tick beats a
   truncated one). */
.snc .port-row .pt{flex:0 1 auto}
.snc .tr-row .tm{flex:0 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis}
.snc .hero-ticks span{white-space:normal;text-align:left}
.snc .duo > *{min-width:0}
.snc .res-grid > *{min-width:0}
/* The terminal cheatsheet — the exact shape that clipped /port-checker and
   /mx-checker: grid/flex children default to min-width:auto, so the nowrap
   shell command dictated the row's minimum and the whole grid grew to 601px. */
.snc .cheat > *{min-width:0}
.snc .ch-row > *{min-width:0}
.snc .cmd .c{min-width:0}

@media (max-width:960px){
  .snc .res-grid{grid-template-columns:1fr}
  .snc .snc-answer{font-size:29px}
  .snc .blockgrid{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  .snc .blockgrid{grid-template-columns:1fr}
  .snc .snc-answer{font-size:25px}
}