/* =========================================================================
   /website-header-checker
   Built only on site.css custom properties (--paper, --ink, --rule, --mark,
   --ok/--warn/--bad and their -soft pairs), so light, dark and contrast
   themes all follow without per-theme rules here.
   ========================================================================= */

.whc-page { color: var(--ink); }
.whc-page .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.whc-shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 34px 0 56px; }

/* ---- hero ---- */
.whc-hero { max-width: 900px; }
.whc-eyebrow { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 10px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.whc-eyebrow span { width: 8px; height: 8px; border-radius: 50%; background: var(--mark); }
.whc-hero h1 { margin: 0; font-family: var(--font-display); font-size: clamp(32px, 5vw, 48px); line-height: 1.05; letter-spacing: -.02em; }
.whc-lede { margin: 14px 0 22px; max-width: 70ch; font-size: 16px; line-height: 1.6; color: var(--ink-2); }

.whc-form { display: grid; grid-template-columns: minmax(0, 1fr) auto auto auto; gap: 10px; align-items: stretch; }
.whc-url { display: flex; align-items: center; gap: 10px; padding: 0 14px; border: 1px solid var(--rule); border-radius: var(--r-lg); background: var(--paper); color: var(--ink-3); }
.whc-url:focus-within { border-color: var(--mark); box-shadow: 0 0 0 3px var(--mark-soft); }
.whc-url input { flex: 1 1 auto; min-width: 0; padding: 14px 0; border: 0; outline: none; background: transparent; color: var(--ink); font-family: var(--font-mono); font-size: 14px; }
.whc-select { display: flex; flex-direction: column; justify-content: center; gap: 2px; padding: 6px 12px; border: 1px solid var(--rule); border-radius: var(--r-lg); background: var(--paper); }
.whc-select span { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.whc-select select { border: 0; background: transparent; color: var(--ink); font-size: 13.5px; font-weight: 600; padding: 0; cursor: pointer; outline: none; }
.whc-select-sm { flex-direction: row; align-items: center; gap: 8px; padding: 4px 10px; border-radius: var(--r-sm); }
.whc-select-sm select { max-width: 280px; font-weight: 500; font-size: 12.5px; }
.whc-go { padding: 0 22px; border: 0; border-radius: var(--r-lg); background: var(--ink); color: var(--paper); font-weight: 700; font-size: 14.5px; cursor: pointer; transition: opacity .15s, transform .12s; }
.whc-go:hover { transform: translateY(-1px); }
.whc-go:disabled { opacity: .6; cursor: progress; transform: none; }

.whc-examples { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 12px; font-size: 12.5px; color: var(--ink-3); }
.whc-examples button { padding: 5px 10px; border: 1px solid var(--rule); border-radius: 999px; background: var(--paper); color: var(--ink-2); font-family: var(--font-mono); font-size: 11.5px; cursor: pointer; }
.whc-examples button:hover { border-color: var(--mark); color: var(--ink); }

.whc-message { margin-top: 14px; min-height: 0; font-size: 13.5px; }
.whc-message:empty { display: none; }
.whc-message.is-info, .whc-message.is-warn, .whc-message.is-bad { padding: 10px 14px; border-radius: var(--r-sm); }
.whc-message.is-info { background: var(--paper-2); color: var(--ink-2); }
.whc-message.is-warn { background: var(--warn-soft); color: var(--warn); }
.whc-message.is-bad { background: var(--bad-soft); color: var(--bad); }

/* ---- results ---- */
.whc-results { margin-top: 30px; display: grid; gap: 18px; scroll-margin-top: 20px; }
.whc-summary { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.whc-stat { display: flex; flex-direction: column; gap: 4px; min-width: 0; padding: 14px 16px; border: 1px solid var(--rule); border-left-width: 4px; border-radius: var(--r-sm); background: var(--paper); }
.whc-stat span { font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.whc-stat strong { font-size: 17px; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.whc-stat small { font-size: 12px; color: var(--ink-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.whc-stat.is-ok { border-left-color: var(--ok); }
.whc-stat.is-warn { border-left-color: var(--warn); }
.whc-stat.is-bad { border-left-color: var(--bad); }

.whc-card { border: 1px solid var(--rule); border-radius: var(--r-lg); background: var(--paper); overflow: hidden; }
.whc-card-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--rule-2); background: var(--paper-2); }
.whc-card-head h2 { margin: 0; font-size: 15px; font-weight: 700; }
.whc-note { font-size: 12px; color: var(--ink-3); }
.whc-head-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.whc-filter { padding: 7px 11px; border: 1px solid var(--rule); border-radius: var(--r-sm); background: var(--paper); color: var(--ink); font-size: 12.5px; min-width: 180px; }
.whc-btn { padding: 7px 12px; border: 1px solid var(--rule); border-radius: var(--r-sm); background: var(--paper); color: var(--ink-2); font-size: 12.5px; font-weight: 600; cursor: pointer; }
.whc-btn:hover { border-color: var(--ink-3); color: var(--ink); }

/* chain */
.whc-chain { list-style: none; margin: 0; padding: 8px 18px 14px; counter-reset: hop; }
.whc-hop { position: relative; display: flex; align-items: flex-start; gap: 12px; padding: 10px 0 10px 4px; }
.whc-hop + .whc-hop::before { content: ""; position: absolute; left: 25px; top: -10px; height: 20px; border-left: 2px dotted var(--rule); }
.whc-badge { flex: 0 0 auto; min-width: 46px; padding: 4px 0; text-align: center; border-radius: var(--r-sm); font-family: var(--font-mono); font-size: 12.5px; font-weight: 700; }
.whc-badge.is-ok { background: var(--ok-soft); color: var(--ok); }
.whc-badge.is-warn { background: var(--warn-soft); color: var(--warn); }
.whc-badge.is-bad { background: var(--bad-soft); color: var(--bad); }
.whc-badge.is-info { background: var(--paper-2); color: var(--ink-2); }
.whc-hop-main { min-width: 0; }
.whc-hop-url { display: block; font-family: var(--font-mono); font-size: 13px; color: var(--ink); text-decoration: none; overflow-wrap: anywhere; }
.whc-hop-url:hover { color: var(--mark-deep); text-decoration: underline; }
.whc-hop-main small { display: block; margin-top: 3px; font-size: 11.5px; color: var(--ink-3); overflow-wrap: anywhere; }

/* findings */
.whc-findings { list-style: none; margin: 0; padding: 10px 18px 16px; display: grid; gap: 8px; }
.whc-findings li { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; line-height: 1.5; }
.whc-dot { flex: 0 0 auto; width: 9px; height: 9px; margin-top: 6px; border-radius: 50%; background: var(--ink-3); }
.whc-findings .is-ok .whc-dot { background: var(--ok); }
.whc-findings .is-warn .whc-dot { background: var(--warn); }
.whc-findings .is-bad .whc-dot { background: var(--bad); }

/* header groups */
.whc-group { padding: 12px 18px 6px; }
.whc-group + .whc-group { border-top: 1px solid var(--rule-2); }
.whc-group h3 { margin: 0 0 8px; font-size: 12px; font-family: var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }
.whc-group h3 span { margin-left: 6px; padding: 1px 7px; border-radius: 999px; background: var(--paper-2); color: var(--ink-2); letter-spacing: 0; }
.whc-rows { display: grid; }
.whc-row { display: grid; grid-template-columns: minmax(150px, 260px) minmax(0, 1fr); gap: 14px; padding: 8px 0; border-top: 1px solid var(--rule-2); }
.whc-row:first-child { border-top: 0; }
.whc-name { font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; color: var(--mark-deep); overflow-wrap: anywhere; }
.whc-val code { display: block; font-family: var(--font-mono); font-size: 12.5px; color: var(--ink); overflow-wrap: anywhere; white-space: pre-wrap; }
.whc-val small { display: block; margin-top: 3px; font-size: 12px; color: var(--ink-3); }
.whc-empty { padding: 18px; margin: 0; color: var(--ink-3); font-size: 13px; }

.whc-raw { margin: 0; padding: 14px 18px; max-height: 420px; overflow: auto; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere; background: var(--paper); }

/* ---- info ---- */
.whc-info { margin-top: 44px; }
.whc-info h2 { margin: 0 0 14px; font-family: var(--font-display); font-size: 22px; }
.whc-info-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-bottom: 36px; }
.whc-info-grid > div { padding: 16px 18px; border: 1px solid var(--rule); border-radius: var(--r-lg); background: var(--paper); }
.whc-info-grid h3 { margin: 0 0 6px; font-size: 14.5px; }
.whc-info-grid p { margin: 0; font-size: 13.5px; line-height: 1.6; color: var(--ink-2); }
.whc-info code { font-family: var(--font-mono); font-size: 12px; }
.whc-faq details { border-top: 1px solid var(--rule); padding: 12px 0; }
.whc-faq details:last-child { border-bottom: 1px solid var(--rule); }
.whc-faq summary { cursor: pointer; font-weight: 600; }
.whc-faq p { margin: 8px 0 0; max-width: 75ch; color: var(--ink-2); line-height: 1.6; font-size: 14px; }

@media (max-width: 900px) {
  .whc-form { grid-template-columns: 1fr 1fr; }
  .whc-url { grid-column: 1 / -1; }
  .whc-go { grid-column: 1 / -1; min-height: 46px; }
  .whc-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .whc-info-grid { grid-template-columns: 1fr; }
  .whc-row { grid-template-columns: 1fr; gap: 4px; }
}