/* Soft 404 Evidence Builder — scoped production styles */
.s404-tool [hidden] { display: none !important; }
.s404-tool { --s404-ink: #111827; --s404-muted: #4b5563; --s404-line: #d8e0ee; --s404-blue: #2563eb; --s404-teal: #0f766e; --s404-red: #b42318; --s404-amber: #9a6700; max-width: 1240px; margin: 0 auto; }
.s404-hero { max-width: 900px; margin-bottom: 18px; }
.s404-hero h1 { max-width: 780px; }
.s404-hero > p:last-of-type { max-width: 78ch; }
.s404-trust-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.s404-trust-strip span { background: #eef4ff; border: 1px solid #c9dafc; border-radius: 999px; color: #1e3a8a; font-size: .82rem; font-weight: 700; padding: 7px 11px; }
.s404-privacy { border-left: 4px solid var(--s404-teal); margin-bottom: 18px; }
.s404-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; list-style: none; margin: 0 0 20px; padding: 0; }
.s404-flow li { align-items: center; background: #f8fafc; border: 1px solid var(--s404-line); border-radius: 10px; color: var(--s404-muted); display: flex; font-size: .82rem; font-weight: 700; gap: 8px; padding: 10px; }
.s404-flow li span { align-items: center; background: #e5e7eb; border-radius: 50%; display: inline-flex; flex: 0 0 24px; height: 24px; justify-content: center; }
.s404-flow li.is-current { background: #eef4ff; border-color: #9db9f5; color: #1e3a8a; }
.s404-flow li.is-current span { background: var(--s404-blue); color: #fff; }
.s404-section-heading, .s404-results-header { align-items: flex-start; display: flex; gap: 20px; justify-content: space-between; margin-bottom: 16px; }
.s404-section-heading h2, .s404-section-heading h3, .s404-results-header h2 { margin: 0; }
.s404-section-heading p, .s404-results-header p { margin: 5px 0 0; }
.s404-mode-grid { display: grid; gap: 14px; margin-top: 18px; }
.s404-mode { background: #f8fafc; border: 1px solid var(--s404-line); border-radius: 12px; overflow: hidden; }
.s404-mode summary { align-items: center; cursor: pointer; display: flex; gap: 10px; justify-content: space-between; padding: 16px 18px; }
.s404-mode summary strong { color: var(--s404-ink); font-size: 1rem; }
.s404-mode summary span { color: var(--s404-muted); font-size: .82rem; font-weight: 500; text-align: right; }
.s404-mode[open] summary { background: #eef4ff; border-bottom: 1px solid var(--s404-line); }
.s404-mode-body { padding: 18px; }
.s404-mode-body textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: .82rem; width: 100%; }
.s404-html-inputs, .s404-status-meta { display: grid; gap: 14px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.s404-status-meta { border-top: 1px solid var(--s404-line); margin-top: 14px; padding-top: 14px; }
.s404-status-meta label { color: var(--s404-ink); display: grid; font-size: .82rem; font-weight: 700; gap: 6px; }
.s404-inline-status { color: var(--s404-muted); font-size: .84rem; min-height: 1.3em; margin: 8px 0 0; }
.s404-count-pill { background: #e8f7f3; border-radius: 999px; color: #0b5f59; font-size: .8rem; font-weight: 800; padding: 7px 11px; }
.s404-mapping-grid { display: grid; gap: 12px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.s404-mapping-grid label { color: var(--s404-ink); display: grid; font-size: .8rem; font-weight: 700; gap: 6px; }
.s404-mapping-grid label.is-required > span::after { color: var(--s404-red); content: ' *'; }
.s404-config-grid { display: grid; gap: 20px; grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr); }
.s404-config-card textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; width: 100%; }
.s404-run-card { align-items: center; display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr) auto; }
.s404-run-card h2, .s404-run-card p { margin-bottom: 6px; margin-top: 0; }
.s404-run-actions, .s404-export-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.s404-progress { grid-column: 1 / -1; }
.s404-progress-track { background: #e5e7eb; border-radius: 999px; height: 10px; overflow: hidden; }
.s404-progress-track span { background: linear-gradient(90deg, var(--s404-blue), var(--s404-teal)); display: block; height: 100%; transition: width .18s ease; width: 0; }
.s404-progress p { color: var(--s404-muted); font-size: .84rem; margin: 8px 0 0; }
.s404-run-card #tool-error { grid-column: 1 / -1; margin: 0; }
.s404-results { margin-top: 28px; }
.s404-summary-grid { display: grid; gap: 12px; grid-template-columns: repeat(5, minmax(0, 1fr)); margin-bottom: 18px; }
.s404-summary-card { background: #fff; border: 1px solid var(--s404-line); border-radius: 12px; min-height: 108px; padding: 15px; }
.s404-summary-card strong { color: var(--s404-ink); display: block; font-size: 1.8rem; line-height: 1; }
.s404-summary-card span { color: var(--s404-muted); display: block; font-size: .8rem; font-weight: 700; line-height: 1.35; margin-top: 8px; }
.s404-summary-card.is-high { border-top: 4px solid #dc2626; }
.s404-summary-card.is-review { border-top: 4px solid #d97706; }
.s404-summary-card.is-counter { border-top: 4px solid var(--s404-teal); }
.s404-filter-bar { align-items: end; display: grid; gap: 10px; grid-template-columns: minmax(240px, 2fr) repeat(3, minmax(150px, 1fr)); margin-bottom: 14px; }
.s404-filter-bar label { color: var(--s404-muted); display: grid; font-size: .76rem; font-weight: 800; gap: 5px; text-transform: uppercase; }
.s404-filter-bar input, .s404-filter-bar select { font-size: .88rem; text-transform: none; }
.s404-table-wrap { border: 1px solid var(--s404-line); border-radius: 10px; max-height: 650px; overflow: auto; }
#signal-matrix { border-collapse: separate; border-spacing: 0; font-size: .78rem; margin: 0; min-width: 1120px; width: 100%; }
#signal-matrix th { background: #f1f5f9; color: #334155; position: sticky; top: 0; z-index: 2; }
#signal-matrix th, #signal-matrix td { border-bottom: 1px solid #e5e7eb; padding: 9px 10px; text-align: left; vertical-align: top; }
#signal-matrix tbody tr { cursor: pointer; }
#signal-matrix tbody tr:hover, #signal-matrix tbody tr:focus-within { background: #eef4ff; }
#signal-matrix tbody tr.is-selected { background: #dbeafe; box-shadow: inset 4px 0 0 var(--s404-blue); }
.s404-page-button { background: none; border: 0; color: #1d4ed8; cursor: pointer; font: inherit; font-weight: 750; max-width: 300px; overflow-wrap: anywhere; padding: 0; text-align: left; }
.s404-page-button:focus-visible { border-radius: 4px; outline: 3px solid #93c5fd; outline-offset: 2px; }
.s404-label { border-radius: 999px; display: inline-block; font-size: .7rem; font-weight: 800; line-height: 1.3; padding: 4px 7px; }
.s404-label-high { background: #fee2e2; color: #991b1b; }
.s404-label-medium, .s404-label-review { background: #fef3c7; color: #854d0e; }
.s404-label-low { background: #dcfce7; color: #166534; }
.s404-pagination { align-items: center; display: flex; gap: 12px; justify-content: space-between; margin-top: 12px; }
.s404-pagination p { color: var(--s404-muted); margin: 0; }
.s404-pagination > div { align-items: center; display: flex; gap: 10px; }
.s404-detail { scroll-margin-top: 90px; }
.s404-detail-header { align-items: flex-start; border-bottom: 1px solid var(--s404-line); display: flex; gap: 16px; justify-content: space-between; margin-bottom: 16px; padding-bottom: 14px; }
.s404-detail-header h3 { margin: 0 0 5px; overflow-wrap: anywhere; }
.s404-detail-header p { color: var(--s404-muted); margin: 0; }
.s404-detail-grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); }
.s404-evidence-list { display: grid; gap: 8px; }
.s404-evidence-item { border: 1px solid var(--s404-line); border-left: 4px solid #94a3b8; border-radius: 8px; padding: 10px 12px; }
.s404-evidence-item.is-high { border-left-color: #dc2626; }
.s404-evidence-item.is-review { border-left-color: #d97706; }
.s404-evidence-item.is-counter { border-left-color: var(--s404-teal); }
.s404-evidence-item strong { display: block; font-size: .82rem; }
.s404-evidence-item p { color: var(--s404-muted); font-size: .78rem; margin: 4px 0 0; }
.s404-comparison-grid { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; margin-top: 14px; }
.s404-comparison { background: #f8fafc; border: 1px solid var(--s404-line); border-radius: 9px; padding: 12px; }
.s404-comparison h4 { margin: 0 0 6px; }
.s404-comparison p { color: var(--s404-muted); font-size: .78rem; margin: 4px 0; overflow-wrap: anywhere; }
.s404-comparison blockquote { background: #fff; border-left: 3px solid #94a3b8; font-size: .76rem; margin: 8px 0 0; max-height: 140px; overflow: auto; padding: 8px; }
.s404-outcome { background: #eef4ff; border: 1px solid #bfdbfe; border-radius: 10px; padding: 14px; }
.s404-outcome h4 { margin: 0 0 9px; }
.s404-outcome select { width: 100%; }
.s404-checklist { margin: 12px 0 0; padding-left: 20px; }
.s404-checklist li { margin-bottom: 7px; }
.s404-raw-excerpt { background: #111827; border-radius: 9px; color: #e5e7eb; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: .74rem; line-height: 1.55; margin-top: 14px; max-height: 190px; overflow: auto; padding: 12px; white-space: pre-wrap; }
.s404-cluster-grid { display: grid; gap: 10px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.s404-cluster-card { border: 1px solid var(--s404-line); border-radius: 10px; padding: 12px; }
.s404-cluster-card h4 { margin: 0 0 5px; }
.s404-cluster-card p { color: var(--s404-muted); font-size: .78rem; margin: 4px 0; overflow-wrap: anywhere; }
.s404-cluster-card code { font-size: .7rem; }
.s404-export-card { align-items: center; display: grid; gap: 18px; grid-template-columns: minmax(0, 1fr) minmax(460px, auto); }
.s404-export-card .s404-export-actions { display: grid; grid-template-columns: repeat(2, minmax(190px, 1fr)); }
.s404-export-card h3, .s404-export-card p { margin: 0 0 5px; }
.s404-export-card #export-status { color: var(--s404-muted); grid-column: 1 / -1; font-size: .8rem; margin: 0; text-align: right; }
.s404-education .feature-item { display: block; }
.s404-education .feature-item h3 { margin-bottom: 8px; }
.s404-empty { color: var(--s404-muted); font-style: italic; }
.s404-education { margin-top: 28px; }
.s404-tool input:focus-visible, .s404-tool textarea:focus-visible, .s404-tool select:focus-visible, .s404-tool summary:focus-visible, .s404-tool button:focus-visible { outline: 3px solid #93c5fd; outline-offset: 2px; }

@media (max-width: 900px) {
  .s404-mapping-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .s404-config-grid, .s404-detail-grid { grid-template-columns: 1fr; }
  .s404-summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .s404-filter-bar { grid-template-columns: 1fr 1fr; }
  .s404-cluster-grid { grid-template-columns: 1fr 1fr; }
  .s404-run-card { grid-template-columns: 1fr; }
  .s404-run-actions { justify-content: flex-start; }
  .s404-export-card { align-items: flex-start; grid-template-columns: 1fr; }
  .s404-export-card .s404-export-actions { width: 100%; }
  .s404-export-actions { justify-content: flex-start; }
  .s404-export-card #export-status { text-align: left; }
}

@media (max-width: 640px) {
  .s404-flow { grid-template-columns: 1fr; }
  .s404-flow li:not(.is-current) { display: none; }
  .s404-section-heading, .s404-results-header, .s404-detail-header { align-items: stretch; flex-direction: column; gap: 10px; }
  .s404-html-inputs, .s404-status-meta, .s404-mapping-grid, .s404-filter-bar, .s404-summary-grid, .s404-comparison-grid, .s404-cluster-grid { grid-template-columns: 1fr; }
  .s404-mode summary { align-items: flex-start; flex-direction: column; }
  .s404-mode summary span { text-align: left; }
  .s404-pagination { align-items: flex-start; flex-direction: column; }
  .s404-export-card .s404-export-actions { grid-template-columns: 1fr; }
  .s404-run-actions .btn, .s404-export-actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .s404-progress-track span { transition: none; }
}