/* ============================================================================
   DNS Lookup: styles (Nitro Sites tools hub)

   SKINNED TO THE HOST. Everything here is driven by nitrosites' design tokens
   (src/styles/tokens.css) and reuses its component recipes (.btn/.btn-primary/
   .btn-ghost, .card, .panel-static, .field) which the BaseLayout shell loads
   globally via global.css. No raw brand colours, fonts, spacing or radii: only
   `var(--…)` host tokens. There are NO brand-simulation cards in this tool, so
   there is NO literal hex anywhere in this file.

   Cascade note: on the live site app.css loads BEFORE the host bundle, so where
   we override a property a host class already sets (e.g. .field's margin), we use
   a PARENT selector to win on specificity rather than load order.
   ========================================================================== */
.dns{
  --dns-ok: var(--color-success);
  --dns-bad: var(--color-danger);
  --dns-warn: var(--color-status-partial);
  --dns-info: var(--color-accent-2);

  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  max-width: 56rem;
  margin: 0 auto;
  width: 100%;
}
.dns *{box-sizing:border-box}
.dns ::selection{background:var(--color-glow); color:var(--color-primary-fg)}

/* ---------- search form ---------- */
.dns-form{display:flex; gap:var(--sp-2); align-items:stretch; margin:var(--sp-4) auto 0; max-width:42rem}
.dns-form .dns-field{flex:1; min-width:0; margin:0} /* flatten host .field into the inline row */
.dns-input{font-size:var(--fs-lg)}
.dns-input:focus-visible{outline:2px solid var(--color-focus); outline-offset:2px}
.dns-btn{white-space:nowrap}
.dns-btn-ico{display:inline-flex; width:1.1em; height:1.1em}
.dns-btn-ico svg{width:100%; height:100%}

/* ---------- advanced (DKIM selector) ---------- */
.dns-adv-toggle{display:flex; align-items:center; gap:var(--sp-2); margin:var(--sp-3) auto 0; max-width:42rem;
  background:none; border:none; color:var(--color-muted); font-size:var(--fs-sm); font-weight:600; cursor:pointer; padding:var(--sp-1) 0}
.dns-adv-toggle:hover{color:var(--color-primary)}
.dns-adv-ico{display:inline-flex; width:1em; height:1em; transition:transform var(--dur-fast) var(--ease)}
.dns-adv-toggle[aria-expanded="true"] .dns-adv-ico{transform:rotate(180deg)}
.dns-adv-row{max-width:42rem; margin:0 auto; display:grid; grid-template-rows:0fr; transition:grid-template-rows var(--dur) var(--ease)}
.dns-adv-row > *{overflow:hidden}
.dns-adv-row.is-open{grid-template-rows:1fr; margin-top:var(--sp-2)}
.dns-adv-row .dns-field{margin:0}

/* ---------- status / error ---------- */
.dns-status{min-height:1.4em; text-align:center; color:var(--color-muted); margin:var(--sp-3) 0 var(--sp-2); font-size:var(--fs-base)}
.dns-status.is-live{color:var(--color-primary-soft)}
.dns-spin{display:inline-block; width:1em; height:1em; border:2px solid var(--color-border); border-top-color:var(--color-primary);
  border-radius:var(--r-full); animation:dns-spin .7s linear infinite; vertical-align:-2px; margin-right:var(--sp-2)}
@keyframes dns-spin{to{transform:rotate(360deg)}}
.dns-error{display:flex; gap:var(--sp-3); align-items:flex-start; max-width:36rem; margin:var(--sp-6) auto; padding:var(--sp-5) var(--sp-6);
  border-radius:var(--r-lg); border:1px solid var(--color-danger); background:color-mix(in srgb, var(--color-danger) 10%, var(--color-surface))}
.dns-error-ico{font-size:1.5em; line-height:1; color:var(--color-danger)}
.dns-error strong{color:var(--color-danger)}
.dns-error-msg{color:var(--color-muted); font-size:var(--fs-sm); margin-top:var(--sp-1)}

/* ---------- idle ---------- */
.dns-idle{max-width:40rem; margin:var(--sp-5) auto; text-align:center}
.dns-idle-t{color:var(--color-muted); font-size:var(--fs-base)}
.dns-idle-ex{display:flex; flex-wrap:wrap; gap:var(--sp-2); align-items:center; justify-content:center; margin-top:var(--sp-3)}
.dns-idle-lbl{color:var(--color-muted); font-size:var(--fs-sm); font-weight:700}
.dns-chip{padding:var(--sp-1) var(--sp-3); border-radius:var(--r-full); border:1px solid var(--color-border); background:var(--color-surface);
  color:var(--color-accent-2); cursor:pointer; font-family:var(--font-mono); font-size:var(--fs-xs); transition:border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease)}
.dns-chip:hover{border-color:var(--color-primary); color:var(--color-text)}

/* ---------- results ---------- */
.dns-results:not(:empty){margin-top:var(--sp-5); animation:dns-rise var(--dur) var(--ease) both}
@keyframes dns-rise{from{opacity:0; transform:translateY(12px)} to{opacity:1; transform:translateY(0)}}

/* ---------- tone helpers ---------- */
.tone-ok{--tone:var(--dns-ok); color:var(--dns-ok)} .tone-bad{--tone:var(--dns-bad); color:var(--dns-bad)}
.tone-warn{--tone:var(--dns-warn); color:var(--dns-warn)} .tone-mut{--tone:var(--color-muted); color:var(--color-muted)}
.tone-good{--tone:var(--color-accent-2); color:var(--color-accent-2)}

/* ---------- standard score hero (DNS & email security — SCORECARD-STANDARD.md) ---------- */
.dns-hero{display:flex; gap:var(--sp-6); align-items:center}
.dns-hero-ring{flex:none}
.dns-ring{position:relative; width:132px; height:132px}
.dns-ring svg{width:100%; height:100%; transform:rotate(-90deg)}
.dns-ring-bg{fill:none; stroke:var(--color-border); stroke-width:10}
.dns-ring-fg{fill:none; stroke:var(--tone,var(--color-primary)); stroke-width:10; stroke-linecap:round; transition:stroke-dashoffset var(--dur-slow) var(--ease)}
.dns-ring-c{position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; line-height:1}
.dns-ring-score{font-family:var(--font-display); font-weight:900; font-size:var(--fs-4xl); color:var(--color-text)}
.dns-of{color:var(--color-muted); font-size:var(--fs-xs); margin-top:2px}
.dns-hero-body{flex:1; min-width:0}
.dns-hero-host{display:flex; align-items:center; gap:var(--sp-2); flex-wrap:wrap; color:var(--color-muted); font-family:var(--font-mono); font-size:var(--fs-sm)}
.dns-grade-badge{flex:none; display:inline-flex; align-items:center; justify-content:center; min-width:2em; height:2em; padding:0 .4em;
  font-family:var(--font-display); font-weight:800; font-size:var(--fs-lg); color:var(--tone,var(--color-text)); border-radius:var(--r-md);
  border:2px solid var(--tone,var(--color-border)); background:color-mix(in srgb, var(--tone,var(--color-border)) 14%, transparent)}
.dns-hero-verdict{font-size:var(--fs-lg); line-height:1.5; color:var(--color-text); margin:var(--sp-3) 0 0}

/* ---------- header ---------- */
.dns-header{display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:var(--sp-3); padding:var(--sp-5) var(--sp-6)}
.dns-header-domain{font-family:var(--font-display); font-size:var(--fs-xl); font-weight:800; color:var(--color-primary); word-break:break-all}
.dns-stats{display:flex; flex-wrap:wrap; gap:var(--sp-2)}
.dns-pill{display:inline-flex; align-items:center; gap:var(--sp-2); padding:var(--sp-1) var(--sp-3); border-radius:var(--r-full);
  background:var(--color-surface-2); border:1px solid var(--color-border); font-size:var(--fs-xs); color:var(--color-muted)}
.dns-pill b{color:var(--color-text)}
.dns-pill-l{opacity:.8}

/* ---------- section + heading ---------- */
.dns-section{margin-top:var(--sp-6)}
.dns-h3{font-family:var(--font-display); font-size:var(--fs-lg); font-weight:700; color:var(--color-text); margin:0 0 var(--sp-3)}

/* ---------- record groups ---------- */
.dns-groups{display:grid; grid-template-columns:repeat(2,1fr); gap:var(--sp-4)}
.dns-group{padding:var(--sp-4) var(--sp-5)}
.dns-group-head{display:flex; align-items:baseline; gap:var(--sp-2); margin-bottom:var(--sp-3)}
.dns-group-type{font-family:var(--font-display); font-weight:800; font-size:var(--fs-base); color:var(--color-primary); letter-spacing:var(--tracking-wide)}
.dns-group-count{color:var(--color-muted); font-size:var(--fs-xs)}
.dns-empty{color:var(--color-muted); font-size:var(--fs-sm); font-style:italic}
.dns-table{display:flex; flex-direction:column; gap:var(--sp-2)}
.dns-row{display:flex; align-items:baseline; gap:var(--sp-2); flex-wrap:wrap; font-size:var(--fs-sm); padding:var(--sp-1) 0; border-top:1px solid var(--color-border)}
.dns-row:first-child{border-top:none; padding-top:0}
.dns-mono{font-family:var(--font-mono); font-size:var(--fs-xs); color:var(--color-text); word-break:break-all}
.dns-txt-val{color:var(--color-muted)}
.dns-ttl{margin-left:auto; color:var(--color-muted); font-size:var(--fs-xs); white-space:nowrap; flex:none}
.dns-prio{flex:none; font-family:var(--font-mono); font-size:var(--fs-xs); font-weight:700; color:var(--color-primary-fg);
  background:var(--color-primary); padding:.05em .5em; border-radius:var(--r-sm)}
.dns-txt-chip{display:inline-block; font-size:var(--fs-xs); font-weight:700; text-transform:uppercase; letter-spacing:var(--tracking-wide);
  color:var(--color-accent-2); border:1px solid var(--color-accent-2); border-radius:var(--r-sm); padding:0 .4em; margin-right:var(--sp-2)}
.dns-iplink{margin-left:var(--sp-2); color:var(--color-accent-2); font-size:var(--fs-xs); text-decoration:none; font-family:var(--font-sans)}
.dns-iplink:hover{color:var(--color-primary)}
.dns-ns-note{margin-top:var(--sp-3); color:var(--dns-warn); font-size:var(--fs-sm)}

/* ---------- email security card ---------- */
.dns-email{padding:var(--sp-5)}
.dns-email-score{font-size:var(--fs-sm); color:var(--color-muted); margin-bottom:var(--sp-4)}
.dns-email-score b{color:var(--color-text); font-family:var(--font-mono)}
.dns-email-row{border-top:1px solid var(--color-border); padding:var(--sp-3) 0}
.dns-email-row:first-of-type{border-top:none; padding-top:0}
.dns-email-summary{display:flex; align-items:flex-start; gap:var(--sp-3); cursor:pointer; list-style:none}
.dns-email-summary::-webkit-details-marker{display:none}
.dns-email-icon{flex:none; width:1.8em; height:1.8em; border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size:1em; border:2px solid var(--tone,var(--color-border)); background:color-mix(in srgb, var(--tone,var(--color-border)) 14%, transparent)}
.dns-email-main{flex:1; min-width:0}
.dns-email-title{font-size:var(--fs-base); color:var(--color-text)}
.dns-email-title b{font-weight:700}
.dns-email-meaning{color:var(--color-muted); font-size:var(--fs-sm); margin-top:2px}
.dns-email-chevron{flex:none; width:1.2em; height:1.2em; color:var(--color-muted); transition:transform var(--dur-fast) var(--ease)}
.dns-email-row[open] .dns-email-chevron{transform:rotate(180deg)}
.dns-email-detail{margin:var(--sp-3) 0 0 calc(1.8em + var(--sp-3)); padding-top:var(--sp-3); border-top:1px dashed var(--color-border)}
.dns-email-record-lbl{font-size:var(--fs-xs); font-weight:700; text-transform:uppercase; letter-spacing:var(--tracking-wide); color:var(--color-muted); margin-bottom:var(--sp-1)}
.dns-email-record{font-family:var(--font-mono); font-size:var(--fs-xs); color:var(--color-text); background:var(--color-bg);
  border:1px solid var(--color-border); border-radius:var(--r-sm); padding:var(--sp-3); white-space:pre-wrap; word-break:break-all; margin:0 0 var(--sp-3)}
.dns-email-meta{font-size:var(--fs-sm); color:var(--color-muted); margin-bottom:var(--sp-2)}
.dns-email-tree{display:flex; flex-direction:column; gap:var(--sp-1); margin-bottom:var(--sp-3)}
.dns-email-tree-row{display:flex; gap:var(--sp-2); font-family:var(--font-mono); font-size:var(--fs-xs); color:var(--color-muted)}
.dns-email-issues{margin:0 0 var(--sp-3); padding-left:1.2em; color:var(--color-muted); font-size:var(--fs-sm)}
.dns-email-issues li{margin-bottom:var(--sp-1)}
.dns-email-recommend{margin-top:var(--sp-2)}

/* ---------- footer ---------- */
.dns-footer{display:flex; align-items:center; justify-content:space-between; gap:var(--sp-3); flex-wrap:wrap; margin-top:var(--sp-6);
  padding-top:var(--sp-4); border-top:1px solid var(--color-border)}
.dns-mini{padding:var(--sp-2) var(--sp-4); font-size:var(--fs-sm); font-weight:700; gap:var(--sp-2)}
.dns-mini-ico{display:inline-flex; width:1.1em; height:1.1em}
.dns-mini-ico svg{width:100%; height:100%}
.dns-mini.done{color:var(--dns-ok); border-color:var(--dns-ok)}
.dns-links{display:flex; gap:var(--sp-4); flex-wrap:wrap}
.dns-crosslink{display:inline-flex; align-items:center; gap:var(--sp-1); color:var(--color-accent-2); font-size:var(--fs-sm); font-weight:700; text-decoration:none}
.dns-crosslink:hover{color:var(--color-primary)}
.dns-crosslink-ico{display:inline-flex; width:.9em; height:.9em}

/* ---------- responsive ---------- */
@media(max-width:720px){
  .dns-groups{grid-template-columns:1fr}
}
@media(max-width:560px){
  .dns-form{flex-direction:column}
  .dns-header{flex-direction:column; align-items:flex-start}
  .dns-email-detail{margin-left:0}
}