/* =========================================================================
   Guía DNS (docs/dns/). Tokens heredados de docs.css.
   ========================================================================= */

.guide-dns .guide-hero{padding:72px 0 28px}
.guide-dns .guide-hero h1{max-width:18ch;margin-bottom:16px}
.guide-dns .guide-hero .lead{max-width:52ch}
.guide-dns .section-lead{font-size:clamp(17px,1rem + .2vw,19px);color:var(--text-2);
  line-height:1.55;max-width:52ch;margin:0 0 22px;text-align:start}
.guide-section{padding:48px 0}

/* Tabla de registros: un job por fila. Misma familia que .guide-table de API. */
.dns-peer-grid,.dns-rec-wrap{margin:8px 0 16px;border:1px solid var(--line);
  border-radius:var(--r-lg);background:var(--surface);overflow-x:auto}
.dns-rec-table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:15px}
.dns-rec-table thead th:nth-child(1){width:20%}
.dns-rec-table thead th:nth-child(2){width:14%}
.dns-rec-table thead th:nth-child(3){width:22%}
.dns-rec-table thead th:nth-child(4){width:44%}
.dns-rec-table td:nth-child(2){white-space:nowrap}
.dns-rec-table th,.dns-rec-table td{padding:12px 16px;text-align:left;vertical-align:middle;
  border-bottom:1px solid var(--line)}
.dns-rec-table thead th{font-family:var(--mono);font-size:11.5px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:var(--surface-2)}
.dns-rec-table tbody th{font-weight:600;color:var(--text);white-space:nowrap}
.dns-rec-table tbody:last-child tr:last-child th,.dns-rec-table tbody:last-child tr:last-child td{border-bottom:0}
.dns-rec-group th{width:auto;font-family:var(--mono);font-size:11.5px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:var(--bg);
  padding:8px 16px}
.dns-rec-table code{font-size:13px;background:transparent;border:0;padding:0;
  word-break:normal;overflow-wrap:normal}
.dns-host{white-space:nowrap}
.dns-kv-value{white-space:normal;overflow-wrap:break-word}
.dns-eg-tag{font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;color:var(--muted)}
.dns-rec-table .dns-eg-tag{display:inline;margin-left:8px}
.guide-dns .note{margin:0 0 10px}

@media (max-width:640px){
  .dns-rec-table,.dns-rec-table thead,.dns-rec-table tbody,.dns-rec-table tr,
  .dns-rec-table th,.dns-rec-table td{display:block;width:100%}
  .dns-rec-table thead{display:none}
  .dns-rec-group th{padding:16px 16px 8px}
  .dns-rec-table tbody th{padding:16px 16px 4px;border-bottom:0}
  .dns-rec-table td{padding:4px 16px;border-bottom:0}
  .dns-rec-table td:last-child{padding-bottom:16px;border-bottom:1px solid var(--line)}
  .dns-rec-table tbody:last-child tr:last-child td:last-child{border-bottom:0}
  .dns-rec-table td::before{content:attr(data-label);display:block;margin:0 0 2px;
    font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.08em;
    text-transform:uppercase;color:var(--muted)}
  .dns-rec-table tbody th{white-space:normal}
}

/* Bien / Mal */
.dns-name-eg{display:grid;gap:10px;margin:0 0 18px}
.dns-name-result{overflow-wrap:anywhere}
@media (min-width:560px){.dns-name-eg{grid-template-columns:1fr 1fr}}
.dns-eg{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:var(--r);
  font-size:14px;border:1px solid transparent}
.dns-eg code{display:block;margin-top:4px;font-size:13px;word-break:normal;
  overflow-wrap:normal;white-space:nowrap;background:transparent;border:0;padding:0}
.dns-eg-lbl{display:block;font-size:13px;font-weight:600}
.dns-eg-hint{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
.dns-eg-mark{flex:0 0 auto;width:22px;height:22px;border-radius:999px;display:grid;place-items:center;
  font-size:12px;font-weight:700;line-height:1}
.dns-eg-ok{background:var(--ok-bg);border-color:var(--ok-border)}
.dns-eg-ok .dns-eg-mark{background:var(--ok);color:#fff}
.dns-eg-ok .dns-eg-lbl{color:var(--ok)}
.dns-eg-bad{background:var(--bounce-bg);border-color:var(--bounce-border)}
.dns-eg-bad .dns-eg-mark{background:var(--bounce);color:#fff}
.dns-eg-bad .dns-eg-lbl{color:var(--bounce)}
.dns-eg-strike{text-decoration:line-through;opacity:.85}

.dns-code-block{margin:18px 0;padding:0;border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--surface);overflow:hidden}
.dns-code-block figcaption{padding:10px 14px;font-family:var(--mono);font-size:11.5px;
  font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  border-bottom:1px solid var(--line);background:var(--surface-2)}
.dns-code-block pre{margin:0;padding:14px 16px;overflow-x:auto}
.dns-code-block code{font-size:13px;line-height:1.55;background:transparent;border:0;padding:0;
  white-space:pre-wrap;word-break:break-word}

.guide-steps{margin:0;padding-left:22px}
.guide-steps li{margin:0 0 10px;padding-left:4px}

.dns-fail-list{display:grid;gap:24px}
.dns-fail{padding:0;border:0;background:transparent}
.dns-fail h3{margin:0 0 8px;font-size:18px}
.dns-fail p{margin:0;color:var(--text-2);font-size:15px}

/* Demo: stepper arriba, escenario a ancho de guía. Una tabla no cabe en 385 px. */
.dns-demo{display:flex;flex-direction:column;gap:24px;margin:8px 0}
.dns-demo-steps{list-style:none;padding:0;margin:0;display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.dns-demo-step{margin:0}
.dns-demo-btn{display:flex;gap:14px;align-items:flex-start;width:100%;padding:14px 12px;
  border:1px solid transparent;border-radius:var(--r-lg);background:transparent;
  color:inherit;font:inherit;text-align:left;cursor:pointer;min-height:48px;
  transition:background-color .16s ease,border-color .16s ease}
@media (min-width:861px){
  .dns-demo-btn{align-items:center}
  .dns-demo-body{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
}
.dns-demo-btn:hover{background:var(--surface);border-color:var(--line)}
.dns-demo-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.dns-demo-step.is-active .dns-demo-btn{background:var(--surface);border-color:var(--line);
  box-shadow:var(--shadow-xs)}
.dns-demo-num{flex:0 0 auto;font-family:var(--display);font-weight:900;font-size:26px;
  line-height:1;color:var(--brand-lift);letter-spacing:-.03em;min-width:1.2ch}
.dns-demo-step.is-active .dns-demo-num{color:var(--brand)}
.dns-demo-copy{display:flex;flex-direction:column;gap:5px;min-width:0}
.dns-demo-title{font-family:var(--display);font-weight:700;font-size:18px;
  letter-spacing:-.015em;color:var(--text)}
.dns-demo-body{font-size:14.5px;line-height:1.45;color:var(--muted)}
.dns-demo-step.is-active .dns-demo-body{color:var(--text-2)}
.dns-demo-arrow{display:none}
.dns-demo-arrow svg{display:block;width:16px;height:16px}

.dns-demo-stage{min-width:0;display:flex}
.dns-demo-window{border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:var(--surface);box-shadow:var(--shadow-md);
  width:100%;min-height:260px;display:flex;flex-direction:column}
.shot-chrome{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line);
  background:var(--surface-2)}
.shot-chrome-lbl{font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:var(--brand-ink);flex:0 0 auto}
.shot-url{font-family:var(--mono);font-size:12px;color:var(--muted);overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;min-width:0}

.dns-demo-scenes{display:grid;flex:1 1 auto;padding:22px 22px 26px;min-width:0}
.dns-demo-scene{grid-area:1 / 1;opacity:0;visibility:hidden;pointer-events:none;min-width:0;
  transform:translateY(10px);transition:opacity .35s ease,transform .35s ease,visibility 0s linear .35s}
.dns-demo-scene.is-active{opacity:1;visibility:visible;pointer-events:auto;
  transform:none;transition:opacity .35s ease,transform .35s ease}
.dns-demo-kicker{margin:0 0 12px;font-family:var(--mono);font-size:11.5px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

.dns-demo-card{padding:16px 18px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--bg)}
.dns-demo-card-job{display:block;margin:0 0 10px;font-weight:600;color:var(--text)}
.dns-demo-card-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;min-width:0}
.dns-demo-card-row code{font-size:13px;background:transparent;border:0;padding:0}
.dns-demo-card-row .dns-demo-pill{margin:0 0 0 auto}
.dns-demo-aside{margin:12px 0 0;font-size:14px;line-height:1.45;color:var(--muted)}

.dns-demo-form{display:grid;gap:8px}
.dns-demo-field{display:grid;grid-template-columns:7rem minmax(0,1fr);gap:12px;
  align-items:center;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--bg);min-width:0}
.dns-demo-field span{font-family:var(--mono);font-size:11px;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.dns-demo-field code{font-size:13px;background:transparent;border:0;padding:0;min-width:0}
.dns-demo-ph{color:var(--muted)}

.dns-demo-check{display:inline-flex;align-items:center;margin:0 0 14px;padding:10px 16px;
  border-radius:var(--r);background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  line-height:1.2}

.dns-demo-pill{display:inline-flex;align-items:center;margin:16px 0 0;padding:6px 11px;
  border-radius:var(--r);font-size:13.5px;font-weight:600;line-height:1.2}
.dns-demo-pill-copy{background:var(--brand-soft);color:var(--brand-ink);border:1px solid var(--brand-soft-border)}
.dns-demo-pill-pub{background:var(--brand-soft);color:var(--brand-ink);border:1px solid var(--brand-soft-border)}
.dns-demo-pill-ok{background:var(--ok-bg);color:var(--ok);border:1px solid var(--ok-border)}

.dns-demo-verify{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 18px;border:1px solid var(--line);border-radius:var(--r);background:var(--bg)}
.dns-demo-verify-main{display:flex;flex-direction:column;gap:4px;min-width:0}
.dns-demo-verify-main strong{font-size:16px;color:var(--text)}
.dns-demo-verify-main span{font-size:14px;color:var(--muted)}
.dns-demo-verify .dns-demo-pill{margin:0;flex:0 0 auto}

@keyframes dns-rise{to{opacity:1;transform:none}}

@media (prefers-reduced-motion:reduce){
  .dns-demo-scene{transform:none;transition:none}
}

@media (max-width:860px){
  .dns-demo{gap:20px}
  .dns-demo-steps{grid-template-columns:1fr}
  .dns-demo-step{flex:0 0 auto}
  .dns-demo-arrow{display:flex;align-items:center;justify-content:center;
    width:calc(12px + 14px + 1.2ch);height:18px;margin:2px 0;color:var(--brand);
    opacity:.4;pointer-events:none}
  .dns-demo-field{grid-template-columns:5.5rem minmax(0,1fr);gap:8px}
}

@media (max-width:760px){
  .guide-dns .guide-hero{padding:52px 0 20px}
  .guide-section{padding:36px 0}
}

@media (max-width:460px){
  .dns-demo-verify{flex-direction:column;align-items:flex-start}
}