/* FirstHack 2.0 shared styles for the new pages (home, branch hubs, topic practice, reports).
   Scoped to .nx so nothing leaks into legacy pages. Calm surfaces, one accent, no motion that matters. */
.nx{--nx-ink:#14161a;--nx-ink2:#3c4043;--nx-ink3:#5f6368;--nx-line:#e3e6ea;--nx-line2:#eceef1;--nx-bg:#fff;--nx-soft:#f8f9fb;
  --nx-red:#c1121f;--nx-red2:#a50f1a;--nx-red-t:#fdeef0;--nx-green:#188038;--nx-green-t:#e6f4ea;--nx-amber:#b06000;--nx-amber-t:#fef7e0;
  --nx-blue:#1a73e8;--nx-r:14px;--nx-f:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  color:var(--nx-ink);font:400 16px/1.6 var(--nx-f);-webkit-font-smoothing:antialiased}
.nx *,.nx *::before,.nx *::after{box-sizing:border-box}
.nx a{color:inherit;text-decoration:none}
.nx .nx-w{max-width:1160px;margin:0 auto;padding:0 20px}
.nx h1,.nx h2,.nx h3{margin:0;letter-spacing:-.02em;line-height:1.2;color:var(--nx-ink)}
.nx h1{font-size:clamp(30px,5vw,50px);font-weight:750}
.nx h2{font-size:clamp(22px,3vw,30px);font-weight:700}
.nx h3{font-size:17px;font-weight:650}
.nx p{margin:0}
.nx .nx-sub{color:var(--nx-ink3);font-size:17px;max-width:680px}
.nx .nx-eyebrow{display:inline-block;font:600 12.5px/1 var(--nx-f);letter-spacing:.08em;text-transform:uppercase;color:var(--nx-red);margin-bottom:12px}
.nx .nx-sec{padding:56px 0;border-top:1px solid var(--nx-line2)}
.nx .nx-sec-h{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.nx .nx-sec-h p{color:var(--nx-ink3);margin-top:6px}
.nx .nx-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:22px;font:600 15px/1 var(--nx-f);border:1px solid var(--nx-line);background:#fff;color:var(--nx-ink);cursor:pointer;white-space:nowrap}
.nx .nx-btn:hover{background:var(--nx-soft)}
.nx .nx-btn-p{background:var(--nx-red);border-color:var(--nx-red);color:#fff}
.nx .nx-btn-p:hover{background:var(--nx-red2)}
.nx .nx-btn-sm{height:34px;padding:0 14px;font-size:13.5px;border-radius:17px}
.nx .nx-link{color:var(--nx-red);font-weight:600}
.nx .nx-link:hover{text-decoration:underline}
.nx :focus-visible{outline:2px solid var(--nx-blue);outline-offset:2px;border-radius:6px}
.nx .nx-grid{display:grid;gap:16px}
.nx .nx-g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.nx .nx-g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.nx .nx-g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.nx .nx-card{background:var(--nx-bg);border:1px solid var(--nx-line);border-radius:var(--nx-r);padding:20px;display:flex;flex-direction:column;gap:8px;min-width:0}
.nx a.nx-card:hover{border-color:#c8ccd2;box-shadow:0 2px 10px rgba(16,24,40,.06)}
.nx .nx-card p{color:var(--nx-ink3);font-size:14.5px}
.nx .nx-meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px}
.nx .nx-chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:12px;background:var(--nx-soft);border:1px solid var(--nx-line2);font-size:12.5px;color:var(--nx-ink2);white-space:nowrap}
.nx .nx-chip.free{background:var(--nx-green-t);border-color:transparent;color:var(--nx-green)}
.nx .nx-chip.pro{background:var(--nx-red-t);border-color:transparent;color:var(--nx-red2)}
.nx .nx-chip.wait{background:var(--nx-amber-t);border-color:transparent;color:var(--nx-amber)}
.nx .nx-list{list-style:none;margin:0;padding:0;border:1px solid var(--nx-line);border-radius:var(--nx-r);overflow:hidden;background:#fff}
.nx .nx-list li+li{border-top:1px solid var(--nx-line2)}
.nx .nx-list a,.nx .nx-list .nx-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;font-size:15px}
.nx .nx-list a:hover{background:var(--nx-soft)}
.nx .nx-list small{color:var(--nx-ink3);font-size:13px;white-space:nowrap}
.nx .nx-note{border:1px solid var(--nx-line);background:var(--nx-soft);border-radius:12px;padding:14px 16px;font-size:14.5px;color:var(--nx-ink2)}
.nx .nx-note b{color:var(--nx-ink)}
/* hero */
.nx .nx-hero{padding:64px 0 48px}
.nx .nx-hero h1{max-width:900px}
.nx .nx-hero .nx-sub{margin-top:18px}
.nx .nx-branch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:32px;max-width:900px}
.nx .nx-branch a{display:flex;flex-direction:column;gap:6px;border:1.5px solid var(--nx-line);border-radius:18px;padding:22px;background:#fff}
.nx .nx-branch a:hover{border-color:var(--nx-red);box-shadow:0 4px 18px rgba(193,18,31,.08)}
.nx .nx-branch b{font-size:20px;letter-spacing:-.01em}
.nx .nx-branch span{color:var(--nx-ink3);font-size:14.5px}
.nx .nx-branch em{font-style:normal;color:var(--nx-red);font-weight:600;font-size:14px;margin-top:6px}
.nx .nx-branch a.on{border-color:var(--nx-red)}
.nx .nx-hero-foot{margin-top:18px;color:var(--nx-ink3);font-size:14px}
.nx .nx-stats{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:28px;color:var(--nx-ink2);font-size:14.5px}
.nx .nx-stats b{font-size:20px;color:var(--nx-ink);margin-right:6px}
/* pricing */
.nx .nx-price b{font-size:28px;letter-spacing:-.02em}
.nx .nx-price small{color:var(--nx-ink3)}
.nx .nx-ticks{list-style:none;margin:6px 0 0;padding:0;font-size:14.5px;color:var(--nx-ink2)}
.nx .nx-ticks li{padding:5px 0 5px 24px;position:relative}
.nx .nx-ticks li::before{content:"";position:absolute;left:4px;top:12px;width:10px;height:6px;border-left:2px solid var(--nx-green);border-bottom:2px solid var(--nx-green);transform:rotate(-45deg)}
/* faq */
.nx details{border:1px solid var(--nx-line);border-radius:12px;background:#fff;padding:0 16px}
.nx details+details{margin-top:10px}
.nx summary{cursor:pointer;padding:15px 0;font-weight:600;list-style:none}
.nx summary::-webkit-details-marker{display:none}
.nx details p{padding:0 0 16px;color:var(--nx-ink3);font-size:15px}
/* subject blocks on branch hubs */
.nx .nx-subj{border:1px solid var(--nx-line);border-radius:var(--nx-r);background:#fff;overflow:hidden}
.nx .nx-subj-h{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;padding:18px 20px;border-bottom:1px solid var(--nx-line2)}
.nx .nx-subj-h p{color:var(--nx-ink3);font-size:14.5px;margin-top:4px}
.nx .nx-subj-b{padding:14px 20px;display:grid;gap:8px}
.nx .nx-subj-b a{color:var(--nx-ink2);font-size:14.5px}
.nx .nx-subj-b a:hover{color:var(--nx-red)}
.nx .nx-subj-b .lbl{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--nx-ink3);margin-top:6px}
/* practice question */
.nx .nx-q{border:1px solid var(--nx-line);border-radius:var(--nx-r);background:#fff;padding:22px}
.nx .nx-q .qtext{font-size:17px;line-height:1.6}
.nx .nx-opts{display:grid;gap:10px;margin-top:16px}
.nx .nx-opt{display:flex;gap:12px;align-items:flex-start;border:1.5px solid var(--nx-line);border-radius:12px;padding:12px 14px;background:#fff;text-align:left;font:inherit;font-size:15.5px;cursor:pointer;color:var(--nx-ink)}
.nx .nx-opt:hover{border-color:#c8ccd2}
.nx .nx-opt b{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:var(--nx-soft);font-size:13px}
.nx .nx-opt.ok{border-color:var(--nx-green);background:var(--nx-green-t)}
.nx .nx-opt.bad{border-color:var(--nx-red);background:var(--nx-red-t)}
.nx .nx-expl{margin-top:16px;border-top:1px solid var(--nx-line2);padding-top:14px;font-size:15px;color:var(--nx-ink2)}
.nx .nx-bar{height:8px;border-radius:4px;background:var(--nx-line2);overflow:hidden}
.nx .nx-bar i{display:block;height:100%;background:var(--nx-red)}
.nx table.nx-t{width:100%;border-collapse:collapse;font-size:14px;background:#fff;border:1px solid var(--nx-line);border-radius:12px;overflow:hidden}
.nx .nx-t th,.nx .nx-t td{padding:10px 14px;border-top:1px solid var(--nx-line2);text-align:left}
.nx .nx-t th{background:var(--nx-soft);font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--nx-ink3);border-top:0}
.nx .nx-scroll{overflow-x:auto;position:relative}
@media (max-width:960px){.nx .nx-g4{grid-template-columns:repeat(2,minmax(0,1fr))}.nx .nx-g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.nx .nx-g2,.nx .nx-g3,.nx .nx-g4,.nx .nx-branch{grid-template-columns:1fr}.nx .nx-hero{padding:40px 0 32px}.nx .nx-sec{padding:40px 0}.nx .nx-w{padding:0 16px}}
/* branch pill and note (shared with includes/mode-ui.php) */
.fhm-pill{display:inline-flex;border:1px solid #e3e6ea;border-radius:18px;padding:2px;gap:2px;flex:none;background:#fff}
.fhm-pill a{font:700 11.5px/1 system-ui,sans-serif;letter-spacing:.06em;padding:7px 10px;border-radius:15px;color:#3c4043;text-decoration:none}
.fhm-pill a.on{background:#c1121f;color:#fff}
.fhm-note{max-width:1160px;margin:14px auto;padding:12px 16px;border-radius:12px;border:1px solid #e3e6ea;background:#f8f9fb;font-size:14px;line-height:1.5;color:#3c4043}
.fhm-note a{font-weight:600;color:#c1121f}
.fhm-ask{position:fixed;left:16px;right:16px;bottom:16px;z-index:60;max-width:560px;margin:0 auto;background:#fff;border:1px solid #e3e6ea;border-radius:16px;box-shadow:0 10px 30px rgba(16,24,40,.14);padding:14px 16px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;font:14.5px/1.4 system-ui,sans-serif;color:#14161a}
.fhm-ask b{flex:1 1 200px}
.fhm-ask a{display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:18px;border:1px solid #e3e6ea;font-weight:600;color:#14161a;text-decoration:none}
.fhm-ask a.p{background:#c1121f;border-color:#c1121f;color:#fff}
.fhm-ask button{border:0;background:none;color:#5f6368;font:inherit;cursor:pointer;padding:6px}
@media (max-width:520px){.fhm-ask{left:8px;right:8px;bottom:8px;padding:10px 12px;gap:8px;font-size:13.5px}.fhm-ask b{flex-basis:100%}.fhm-ask a{height:32px;padding:0 12px}}
/* ---- FirstHack Hybrid: coding workspace, states ---- */
.nx .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.nx .nx-cw{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;margin-top:14px;align-items:start}
@media (max-width:980px){.nx .nx-cw{grid-template-columns:1fr}}
.nx .nx-ed{border:1px solid #2b303c;border-radius:14px;overflow:hidden;background:#1c1e26}
.nx .nx-ed-bar{display:flex;gap:8px;align-items:center;padding:8px 10px;background:#232733;border-bottom:1px solid #2b303c}
.nx .nx-ed-bar select{height:34px;border-radius:8px;border:1px solid #4a5263;background:#1c1e26;color:#e6e9ef;padding:0 8px;font:inherit;font-size:14px}
.nx .nx-ed-bar .nx-btn{background:transparent;color:#e6e9ef;border-color:#4a5263}
.nx .nx-ed-bar .nx-btn:hover{background:#2b303c}
.nx .nx-ed-bar .nx-btn-p{background:var(--nx-red);border-color:var(--nx-red);color:#fff}
.nx .nx-code{display:block;width:100%;min-height:420px;border:0;resize:vertical;background:#1c1e26;color:#e6e9ef;font:14px/1.6 'JetBrains Mono',ui-monospace,monospace;padding:14px;tab-size:4;outline:none}
.nx .nx-code:focus-visible{box-shadow:inset 0 0 0 2px #8ab4f8}
.nx .nx-pre{background:#f6f8fa;border:1px solid var(--nx-line2);border-radius:10px;padding:10px 12px;font:13px/1.55 'JetBrains Mono',ui-monospace,monospace;white-space:pre-wrap;word-break:break-word;margin:4px 0 0;max-height:320px;overflow:auto}
.nx .nx-res{border:1px solid var(--nx-line);border-radius:12px;padding:12px 14px;background:#fff;font-size:14.5px}
.nx .nx-res.ok{border-color:var(--nx-green);background:var(--nx-green-t)}
.nx .nx-res.bad{border-color:#f3c0c4;background:var(--nx-red-t)}
.nx .nx-res.warn{border-color:#f5d48a;background:var(--nx-amber-t)}
.nx .nx-filters{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.nx .nx-filters input[type=search],.nx .nx-filters select{height:38px;border:1px solid var(--nx-line);border-radius:19px;padding:0 14px;font:inherit;font-size:14px;background:#fff;color:var(--nx-ink)}
.nx .nx-filters input[type=search]{min-width:220px;flex:1 1 220px}
.nx .nx-pg{display:flex;gap:8px;align-items:center;justify-content:center;margin-top:18px;font-size:14px;color:var(--nx-ink3)}
.nx .nx-empty{border:1px dashed var(--nx-line);border-radius:14px;padding:28px;text-align:center;color:var(--nx-ink3)}
.nx .nx-bm{border:1px solid var(--nx-line);background:#fff;border-radius:18px;height:34px;padding:0 12px;font:inherit;font-size:13.5px;cursor:pointer;color:var(--nx-ink2)}
.nx .nx-bm[aria-pressed=true]{border-color:var(--nx-red);color:var(--nx-red);background:var(--nx-red-t)}
/* ---- Hybrid tutorials (v16 pages): highlighting, try-it, three columns ---- */
.codeblock-pre .hl-k{color:#ff8f88;font-weight:600}.codeblock-pre .hl-s{color:#a5d6a7}.codeblock-pre .hl-n{color:#f6c177}.codeblock-pre .hl-c{color:#8fa1b6;font-style:italic}
.codeblock.is-editing{box-shadow:0 0 0 2px #8ab4f8;border-radius:10px}
.codeblock code[contenteditable=true],.codeblock code[contenteditable=plaintext-only]{outline:none;display:block;min-height:3em;cursor:text}
.cb-btn.cb-try{border-color:#8ab4f8!important}
.fh-toc-r{display:none}
@media (min-width:1280px){
  .with-side.fh-3col{grid-template-columns:230px minmax(0,1fr) 210px}
  .with-side.fh-3col .side .toc-group{display:none}
  .fh-toc-r{display:block;position:sticky;top:88px;max-height:calc(100vh - 110px);overflow:auto;font-size:13.5px}
  .fh-toc-r a{display:block;padding:5px 0 5px 12px;border-left:2px solid #eceef1;color:#5f6368;text-decoration:none}
  .fh-toc-r a.sub{padding-left:24px;font-size:13px}
  .fh-toc-r a:hover{color:#c1121f;border-left-color:#c1121f}
}
.fh-next .fh-steps{margin:8px 0 0;padding-left:20px;line-height:1.8;font-size:15px}
.run-out{white-space:pre-wrap;word-break:break-word;padding:12px 14px;line-height:1.6}
.run-out .ro-label{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#8fa1b6;margin-bottom:2px}