:root {
  --navy: #1d3b6c;
  --accent: #0067ae;
  --accent-cyan: #2ebbe7;
  --accent-tint: #e2eef8;
  --accent-tint-border: #b9d7ec;
  --bg: #eef1f5;
  --card: #ffffff;
  --border: #d7dde5;
  --text: #1f2733;
  --muted: #64748b;
  --mono-bg: #f6f8fa;
  --code-bg: #1e1e1e;
  --code-text: #d4d4d4;
  --sidebar-w: 300px;
}

/* Dark palette: applied when the OS prefers dark and the visitor hasn't
   explicitly chosen "light" (data-theme), and always when they've chosen
   "dark" via the header toggle (see pages/app.js). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --navy: #9cc9ea;
    --accent: #4fb8ea;
    --accent-cyan: #7fd4f2;
    --accent-tint: #16324a;
    --accent-tint-border: #2a5678;
    --bg: #121a24;
    --card: #1a2430;
    --border: #2c3947;
    --text: #e2e8f0;
    --muted: #93a3b8;
    --mono-bg: #1f2a37;
  }
}

:root[data-theme="dark"] {
  --navy: #9cc9ea;
  --accent: #4fb8ea;
  --accent-cyan: #7fd4f2;
  --accent-tint: #16324a;
  --accent-tint-border: #2a5678;
  --bg: #121a24;
  --card: #1a2430;
  --border: #2c3947;
  --text: #e2e8f0;
  --muted: #93a3b8;
  --mono-bg: #1f2a37;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  position: relative;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(16,24,40,0.04);
  color: var(--text);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

header::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 3px;
  background: linear-gradient(90deg, var(--navy), var(--accent), var(--accent-cyan));
}

header .brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

header .brand-logo-wrap {
  display: flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 10px;
}

header .brand-logo {
  height: 24px;
  width: auto;
  display: block;
}

header .brand-title {
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  padding-left: 12px;
  border-left: 1px solid var(--border);
}

header .repo-link {
  font-size: 12.5px;
  color: var(--accent);
  text-decoration: none;
}
header .repo-link:hover { text-decoration: underline; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.theme-toggle-btn {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  border-radius: 7px;
  cursor: pointer;
}
.theme-toggle-btn:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle-btn .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle-btn .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle-btn .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle-btn .icon-sun { display: none; }
  :root:not([data-theme="light"]) .theme-toggle-btn .icon-moon { display: block; }
}

.layout {
  display: flex;
  align-items: stretch;
  height: calc(100vh - 55px);
  overflow: hidden;
}

/* ---------- Sidebar ---------- */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 14px;
  overflow-y: auto;
}

.sidebar-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.sidebar input[type="search"] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 13px;
  outline: none;
  background: var(--card);
  color: var(--text);
}
.sidebar input[type="search"]:focus { border-color: var(--accent); }

.sidebar-hide-btn {
  flex-shrink: 0;
  width: 28px;
  height: 30px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  border-radius: 7px;
  cursor: pointer;
  font-size: 10px;
}
.sidebar-hide-btn:hover { color: var(--accent); border-color: var(--accent); }

.sidebar-show-btn {
  display: none;
  flex-shrink: 0;
  width: 20px;
  align-self: stretch;
  align-items: center;
  justify-content: center;
  border: none;
  border-right: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  cursor: pointer;
  font-size: 10px;
}
.sidebar-show-btn:hover { color: var(--accent); background: var(--mono-bg); }

.layout.sidebar-hidden .sidebar { display: none; }
.layout.sidebar-hidden .sidebar-show-btn { display: flex; }

.sidebar .status-line {
  font-size: 11.5px;
  color: var(--muted);
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sidebar .status-line .status-actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}
.sidebar .status-line button {
  border: none;
  background: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 11.5px;
  padding: 0;
}

.tree-group { margin-bottom: 4px; }
.tree-group-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  padding: 8px 6px 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}
.tree-group-label .chevron {
  transition: transform 0.15s ease;
  font-size: 9px;
}
.tree-group.collapsed .chevron { transform: rotate(-90deg); }
.tree-group.collapsed .tree-files { display: none; }

.tree-files { display: flex; flex-direction: column; gap: 1px; padding-left: 10px; }

.tree-file {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12.5px;
  line-height: 1.35;
  color: var(--text);
  border: 1px solid transparent;
}
.tree-file:hover { background: var(--mono-bg); }
.tree-file.active {
  background: var(--accent-tint);
  border-color: var(--accent-tint-border);
  color: var(--accent);
  font-weight: 600;
}
.tree-file .type-dot {
  flex-shrink: 0;
  width: 7px; height: 7px;
  border-radius: 50%;
  margin-top: 4px;
}
.type-dot.fixlet, .type-dot.task { background: var(--accent); }
.type-dot.analysis { background: #a35fc7; }
.type-dot.baseline { background: #d9822b; }
.type-dot.signature { background: #0f9d8c; }
.type-dot.other { background: #9aa4b2; }

.empty-note {
  font-size: 12px;
  color: var(--muted);
  padding: 8px 6px;
}

/* ---------- Main ---------- */
.main {
  flex: 1;
  min-width: 0;
  padding: 28px 32px 60px;
  overflow-y: auto;
}

.placeholder {
  max-width: 560px;
  margin: 60px auto;
  text-align: center;
  color: var(--muted);
}
.placeholder h2 { color: var(--text); font-size: 18px; margin-bottom: 8px; }

.error-box {
  max-width: 640px;
  margin: 40px auto;
  background: #fde8e8;
  border: 1px solid #f3b9b9;
  color: #7a271a;
  border-radius: 8px;
  padding: 16px 18px;
  font-size: 13.5px;
}
.error-box button {
  margin-top: 10px;
  border: 1px solid #c9433a;
  background: #fff;
  color: #c9433a;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12.5px;
  cursor: pointer;
}

.spinner-line {
  color: var(--muted);
  font-size: 13px;
  padding: 40px;
  text-align: center;
}

.title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}
h1.doc-title {
  font-size: 21px;
  font-weight: 600;
  margin: 0;
  line-height: 1.35;
  color: var(--navy);
}
.badges { display: flex; gap: 8px; flex-shrink: 0; margin-top: 4px; }
.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.badge.severity-critical, .badge.severity-important { background: #fde8e8; color: #b42318; }
.badge.severity-moderate { background: #fef3e2; color: #b45309; }
.badge.severity-low { background: #e9f6ec; color: #1a7f37; }
.badge.domain { background: var(--accent-tint); color: var(--accent); }
.badge.doctype { background: #f1e9fa; color: #7c3fae; }

.meta-line {
  display: flex; flex-wrap: wrap; gap: 16px;
  font-size: 12.5px; color: var(--muted);
  margin: 6px 0 22px;
}
.meta-line span b { color: var(--text); font-weight: 600; }
.meta-line a { color: var(--accent); text-decoration: none; }
.meta-line a:hover { text-decoration: underline; }

section { margin-bottom: 26px; }
.section-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-label .count {
  background: var(--border);
  color: var(--text);
  border-radius: 999px;
  font-size: 10.5px;
  padding: 1px 7px;
  font-weight: 700;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 1px 2px rgba(16,24,40,0.04);
}

.description-box {
  padding: 18px 20px;
  font-size: 14.5px;
  line-height: 1.6;
  overflow-x: auto;
}
.description-box p { margin: 0 0 10px; }
.description-box p:last-child { margin-bottom: 0; }
.description-box a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; }
.description-box a:hover { border-bottom-color: var(--accent); }
.description-box img { max-width: 100%; }
.description-box input, .description-box textarea {
  font: inherit;
  vertical-align: middle;
  margin: 2px 0;
}
.plain-text { white-space: pre-wrap; }

/* ---------- Attribution (frontmatter comment) ---------- */
.attribution-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
textarea.attribution {
  display: block;
  width: 100%;
  background: var(--mono-bg);
  color: var(--text);
  border: none;
  padding: 14px 16px;
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 12.5px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  white-space: pre;
}

/* ---------- Signature detection logic ---------- */
.software-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  margin-bottom: 14px;
}
.software-card:last-child { margin-bottom: 0; }
.software-card-header {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  align-items: baseline;
  margin-bottom: 12px;
  font-size: 12.5px;
  color: var(--muted);
}
.software-card-header .sw-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
}

.signature-block { margin-bottom: 12px; }
.signature-block:last-child { margin-bottom: 0; }
.signature-block-meta {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 8px;
  font-family: "Cascadia Code", "Consolas", monospace;
}

.sig-group {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin: 6px 0;
  background: var(--mono-bg);
}
.sig-group-label {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fff;
  background: var(--accent);
  display: inline-block;
  padding: 2px 8px;
  border-radius: 5px;
  margin-bottom: 8px;
}
.sig-group-or > .sig-group-label { background: #a35fc7; }
.sig-group-children {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 10px;
  border-left: 2px solid var(--border);
  margin-left: 4px;
}

.sig-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  align-items: center;
  padding: 8px 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 12.5px;
}
.sig-filter-tag {
  font-weight: 700;
  color: var(--accent);
  font-family: "Cascadia Code", "Consolas", monospace;
}
.sig-filter-attr {
  color: var(--text);
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 12px;
}
.sig-filter-attr b { color: var(--muted); font-weight: 600; }

.unsupported-element-note code {
  display: inline-block;
  background: var(--mono-bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 6px;
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 12px;
  color: var(--text);
}

.embedded-code-block {
  display: inline-block;
  margin: 2px 4px 2px 0;
  vertical-align: middle;
}
.embedded-code-toggle {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: var(--accent-tint);
  border: 1px solid var(--accent-tint-border);
  border-radius: 5px;
  padding: 2px 8px;
  cursor: pointer;
}
.embedded-code-toggle:hover { background: var(--accent-tint-border); }
.embedded-code-toggle.expanded { background: var(--accent); color: #fff; border-color: var(--accent); }

.embedded-code-panel {
  margin: 6px 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #111;
  background: var(--code-bg);
}
.embedded-code-panel[hidden] { display: none; }

.embedded-code {
  margin: 0;
  max-height: 320px;
  overflow: auto;
  padding: 12px 14px;
}
.embedded-code code {
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 12.5px;
  line-height: 1.55;
  white-space: pre;
  color: var(--code-text);
}

.relevance-list, .property-list { display: flex; flex-direction: column; gap: 10px; }
.relevance-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  background: var(--mono-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.relevance-item .idx {
  flex-shrink: 0;
  width: 20px; height: 20px;
  border-radius: 5px;
  background: var(--accent);
  color: #fff;
  font-family: "Segoe UI", sans-serif;
  font-size: 11px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-top: 1px;
}
.relevance-item .item-body { flex: 1; min-width: 0; }
.relevance-item .item-name {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3px;
}
.relevance-item .relevance-code {
  width: 100%;
  max-height: 220px;
  margin: 0;
  border: none;
  background: transparent;
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 12.5px;
  color: var(--text);
  line-height: 1.55;
  padding: 0;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
}
.relevance-item .relevance-code code { background: transparent; padding: 0; }

/* BigFix Relevance token colors (see pages/vendor/hljs-bigfix-relevance.js) */
.hljs-comment { color: var(--muted); font-style: italic; }
.hljs-keyword { color: var(--accent); font-weight: 600; }
.hljs-string { color: #1a7f37; }
.hljs-number { color: #b45309; }

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: -1px;
}
.tab-btn {
  border: 1px solid var(--border);
  border-bottom: none;
  background: var(--mono-bg);
  color: var(--muted);
  padding: 7px 14px;
  border-radius: 8px 8px 0 0;
  font-size: 12.5px;
  cursor: pointer;
}
.tab-btn.active {
  background: var(--card);
  color: var(--text);
  font-weight: 600;
}

.actionscript-box {
  background: var(--code-bg);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #111;
}
.actionscript-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  background: #17181b;
  border-bottom: 1px solid #000;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }
.actionscript-titlebar .fname {
  margin-left: 8px;
  font-size: 12px;
  color: #9aa0a6;
  font-family: "Cascadia Code", "Consolas", monospace;
}
textarea.actionscript {
  display: block;
  width: 100%;
  height: 320px;
  background: var(--code-bg);
  color: var(--code-text);
  border: none;
  padding: 14px 18px;
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 12.5px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  white-space: pre;
}

details.raw-xml { margin-top: 8px; }
details.raw-xml summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
}
details.raw-xml pre {
  background: var(--mono-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 11.5px;
  overflow-x: auto;
  max-height: 400px;
}

@media (max-width: 800px) {
  .layout { flex-direction: column; height: auto; overflow: visible; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); max-height: 40vh; }
  .main { padding: 20px; overflow-y: visible; }
}