/* SDKDiff shared UI stylesheet — source of truth: tools/sdk-diff-tool/site/ */
:root {
  /* Warm neutral dark — gentle brown undertone, no blue cast */
  --bg:            #1c1a1b;
  --panel:         #232123;
  --panel-2:       #2b282b;
  --border:        #322f31;
  --border-strong: #423e40;

  /* Parchment off-white + warm muted secondary */
  --text:          #e4dac6;
  --text-2:        #b8ae9c;
  --muted:         #847b6f;
  --muted-2:       #5a524b;

  /* Copper accent */
  --accent:        #eca554;
  --accent-2:      #f6c078;

  /* Warm semantics — badges, chips, stats. Distinct from diff colors below. */
  --added:         #a8c860;
  --removed:       #e47e60;
  --changed:       #e8ab44;
  --unchanged:     #847b6f;
  --failed:        #d48cb4;

  /* Diff +/- markers stay unambiguously red/green so they're never confused
     with the warm semantic palette above. Used ONLY on actual diff lines. */
  --diff-add:      #5fcc5a;
  --diff-remove:   #e85555;

  --code-bg:       #161416;

  --font-sans:     'Geist', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:     'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--accent-2); }
code, pre { font-family: var(--font-mono); }

#layout {
  display: grid;
  grid-template-columns: 304px 1fr;
  height: 100vh;
}

/* ============================================================
   SIDEBAR
============================================================ */
#sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 28px 22px 32px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

#brand { display: flex; flex-direction: column; gap: 18px; }

.brand-mark {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  row-gap: 4px;
}
.brand-logo {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
  line-height: 1;
}
.brand-logo .accent { color: var(--accent); }

.brand-title { display: flex; flex-direction: column; gap: 4px; }
.brand-title .label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text);
}
#sidebar h1 {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 400;
  margin: 0;
  color: var(--text);
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
#sidebar h1 .arrow {
  color: var(--accent);
  margin: 0 4px;
  font-weight: 400;
}

/* Diff switcher — the version header becomes a <select> when a sibling
   manifest.json lists more than one diff. Fills the sidebar width; long
   labels ellipsize rather than hard-clipping mid-word. */
#diffswitch { width: 100%; }
#diffswitch select {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  color: var(--text);
  background-color: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 6px 28px 6px 10px;
  margin: 0;
  width: 100%;
  box-sizing: border-box;
  cursor: pointer;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' fill='none' stroke='%23eca554' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 10px center;
}
#diffswitch select:hover { border-color: var(--accent); }
#diffswitch select:focus { outline: none; border-color: var(--accent); }
#diffswitch option { background: var(--panel); color: var(--text); }

.brand-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  margin: 0;
}
.brand-credit { font-size: 12px; color: var(--muted); margin: 0; }
.brand-credit a {
  color: var(--text-2);
  border-bottom: 1px dotted var(--muted-2);
  padding-bottom: 1px;
}
.brand-credit a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Search — boxed input with magnifier icon, clearly clickable */
#search {
  width: 100%;
  padding: 9px 12px 9px 34px;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23b8ae9c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='11' cy='11' r='7'/><line x1='21' y1='21' x2='16.65' y2='16.65'/></svg>");
  background-repeat: no-repeat;
  background-position: 12px center;
  background-size: 14px 14px;
}
#search:hover { border-color: var(--muted); }
#search:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(236, 165, 84, 0.12);
}
#search::placeholder { color: var(--muted); }

/* Filter chips */
#filters { display: flex; flex-wrap: wrap; gap: 4px; }
.chip {
  padding: 4px 9px 4px 8px;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
  user-select: none;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  line-height: 1.3;
}
.chip::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.5;
  flex-shrink: 0;
}
.chip[data-status="new"]       { color: var(--added); }
.chip[data-status="changed"]   { color: var(--changed); }
.chip[data-status="removed"]   { color: var(--removed); }
.chip[data-status="unchanged"] { color: var(--unchanged); }
.chip[data-status="failed"]    { color: var(--failed); }
.chip.on {
  background: rgba(255,255,255,0.03);
  border-color: currentColor;
}
.chip.on::before { opacity: 1; }

/* Hide-private toggle */
.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}
.toggle input { accent-color: var(--accent); }
.toggle code {
  font-size: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0 4px;
  color: var(--text-2);
}

/* Framework list */
#fwlist {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--border);
}
#fwlist li { position: relative; }
#fwlist li a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 10px;
  margin: 0 -10px;
  border-radius: 4px;
  color: var(--text-2);
  font-size: 13px;
  gap: 8px;
  transition: color 0.15s ease, background 0.15s ease;
}
#fwlist li a:hover {
  color: var(--text);
  background: var(--panel-2);
  text-decoration: none;
}
#fwlist li.active a {
  color: var(--text);
  background: var(--panel-2);
}
#fwlist li.active a::before {
  content: '';
  position: absolute;
  left: -22px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--accent);
  border-radius: 1px;
}
#fwlist li a > span:first-child {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#fwlist li a > .badge { flex-shrink: 0; }

/* Status badges */
.badge {
  font-family: var(--font-mono);
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 500;
  letter-spacing: 0.1em;
  background: transparent;
  border: 1px solid currentColor;
  flex-shrink: 0;
  line-height: 1.2;
}
.badge.new       { color: var(--added); }
.badge.removed   { color: var(--removed); }
.badge.changed   { color: var(--changed); }
.badge.unchanged { color: var(--unchanged); }
.badge.failed    { color: var(--failed); }

/* ============================================================
   MAIN CONTENT
============================================================ */
#main {
  overflow-y: auto;
  padding: 56px 56px 120px 64px;
  scroll-padding-top: 24px;
}

/* Stats banner — editorial inline strip */
.summary-banner {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  padding: 0 0 32px;
  margin: 0 0 40px;
  border-bottom: 1px solid var(--border);
}
.summary-banner .stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.summary-banner .stat b {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  display: block;
}
.summary-banner .stat span {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.stat.new b       { color: var(--added); }
.stat.changed b   { color: var(--changed); }
.stat.removed b   { color: var(--removed); }
.stat.unchanged b { color: var(--unchanged); }
.stat.failed b    { color: var(--failed); }

/* Per-framework section */
.fw {
  padding-top: 56px;
  margin-top: 56px;
  border-top: 1px solid var(--border);
  scroll-margin-top: 24px;
}
.fw:first-of-type {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}
.fw-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.fw h2 {
  margin: 0;
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.012em;
  color: var(--text);
  line-height: 1.1;
}
.fw .toplinks {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 22px;
  display: flex;
  gap: 16px;
  align-items: center;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.fw .toplinks a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(236, 165, 84, 0.45);
  text-underline-offset: 3px;
}
.fw .toplinks a:hover {
  color: var(--accent-2);
  text-decoration-color: var(--accent-2);
}

/* Editorial summary block (Claude-generated) */
.summary {
  margin: 0 0 28px;
  padding: 0 0 0 20px;
  border-left: 2px solid var(--accent);
  background: transparent;
  border-radius: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text-2);
}
.summary p { margin: 0 0 12px; }
.summary p:first-child { font-size: 16px; color: var(--text); }
.summary p:last-child { margin-bottom: 0; }
.summary ul { margin: 12px 0 0; padding-left: 20px; }
.summary li { margin-bottom: 6px; color: var(--text-2); }
.summary li:last-child { margin-bottom: 0; }
.summary li::marker { color: var(--muted); }
.summary code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 12.5px;
  color: var(--accent);
  font-family: var(--font-mono);
}

/* Collapsible diff sections */
details.section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin: 14px 0;
  overflow: hidden;
}
details.section > summary {
  padding: 12px 18px;
  cursor: pointer;
  user-select: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--panel);
  transition: background 0.15s ease;
}
details.section > summary:hover { background: var(--panel-2); }
details.section > summary::-webkit-details-marker { display: none; }
details.section > summary .count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}
details.section[data-kind="added"]   > summary { border-left: 2px solid var(--added); }
details.section[data-kind="removed"] > summary { border-left: 2px solid var(--removed); }
details.section[data-kind="changed"] > summary { border-left: 2px solid var(--changed); }

/* Legacy inline list (kept in case render_section is ever re-enabled) */
pre.lines {
  margin: 0;
  padding: 14px 18px;
  background: var(--code-bg);
  border-top: 1px solid var(--border);
  border-radius: 0 0 6px 6px;
  overflow-x: auto;
  font-size: 12.5px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}
pre.lines .kind { color: var(--accent); }
pre.lines .line { display: inline; }
pre.lines.diff { white-space: pre; word-break: normal; }
pre.lines.diff .da { color: var(--diff-add); display: block; }
pre.lines.diff .dr { color: var(--diff-remove); display: block; }
pre.lines.diff .dh { color: var(--accent); display: block; opacity: 0.85; }
pre.lines.diff .df { color: var(--muted); display: block; font-weight: 600; margin-top: 8px; }

/* Hide-private toggle behavior */
body.hide-private .fw[data-private="true"] { display: none !important; }
body.hide-private #fwlist li[data-private="true"] { display: none !important; }
body.hide-private pre.lines .line.private { display: none; }

/* Side-by-side per-file diff */
.sbs-files {
  padding: 10px 14px 16px;
  background: var(--code-bg);
  border-top: 1px solid var(--border);
  border-radius: 0 0 6px 6px;
}
details.sbs-file {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 5px;
  margin: 8px 0;
  overflow: hidden;
}
details.sbs-file > summary {
  padding: 8px 12px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  list-style: none;
}
details.sbs-file > summary::-webkit-details-marker { display: none; }
details.sbs-file > summary::before {
  content: '+';
  display: inline-block;
  width: 14px;
  color: var(--muted);
  font-weight: 600;
}
details.sbs-file[open] > summary::before { content: '−'; }
.filetag {
  font-family: var(--font-mono);
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 8px;
  font-weight: 500;
  letter-spacing: 0.1em;
  background: transparent;
  border: 1px solid currentColor;
}
.filetag.new     { color: var(--added); }
.filetag.removed { color: var(--removed); }

.sbs-pairs {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
}
.sbs-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-bottom: 1px solid var(--border);
}
.sbs-pair:last-child { border-bottom: none; }
.sbs-side { overflow-x: auto; min-width: 0; background: var(--code-bg); }
.sbs-side:first-child { border-right: 1px solid var(--border); }

table.sbs-half { border-collapse: collapse; table-layout: auto; min-width: 100%; }
table.sbs-half td { padding: 1px 8px; vertical-align: top; white-space: pre; }
table.sbs-half td.ln {
  width: 48px; min-width: 48px; max-width: 48px;
  text-align: right;
  color: var(--muted-2);
  user-select: none;
  padding-right: 12px;
  border-right: 1px solid var(--border);
  background: rgba(255,255,255,0.015);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
table.sbs-half td.code { width: auto; }
table.sbs-half td.code.del { background: rgba(232, 85, 85, 0.14); }
table.sbs-half td.code.ins { background: rgba(95, 204, 90, 0.14); }
table.sbs-half td.code.del::before {
  content: '−'; color: var(--diff-remove);
  display: inline-block; width: 12px; margin-left: -10px; opacity: 1; font-weight: 600;
}
table.sbs-half td.code.ins::before {
  content: '+'; color: var(--diff-add);
  display: inline-block; width: 12px; margin-left: -10px; opacity: 1; font-weight: 600;
}

.sbs-gap {
  background: var(--panel-2);
  color: var(--muted);
  text-align: center;
  font-style: italic;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 0;
  border-top: 1px dashed var(--border);
  border-bottom: 1px dashed var(--border);
}

/* Syntax highlighting — warm, saturated */
.tok-cmt   { color: #6c6358; font-style: italic; }
.tok-kw    { color: #d488a8; }
.tok-type  { color: #eca554; }
.tok-macro { color: #e8ab44; }
.tok-str   { color: #a8c860; }
.tok-num   { color: #e8ab44; }
.tok-pre   { color: #d4785c; font-style: italic; }

/* External Swift diff link */
a.external-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: var(--text-2);
  text-decoration: none;
  font-size: 13px;
  font-family: var(--font-mono);
}
a.external-link::before { content: '↗'; color: var(--accent); font-size: 16px; }
a.external-link:hover {
  background: var(--panel-2);
  border-color: var(--accent);
  color: var(--accent);
}

/* Standalone Swift diff page */
body.external { padding: 32px 48px; }
.external-wrap { max-width: 100%; }
.external-head { margin-bottom: 20px; }
.external-head a {
  font-size: 12px;
  color: var(--muted);
  font-family: var(--font-mono);
}
.external-head a:hover { color: var(--accent); }
.external-head h1 {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  margin: 12px 0 4px;
  color: var(--text);
}
.external-head h1 .meta {
  color: var(--muted);
  font-weight: 400;
  font-size: 12px;
  margin-left: 10px;
}

#empty-msg {
  display: none;
  color: var(--muted);
  padding: 60px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
}

/* Lazy-load placeholder. The browser fetches fragments/<name>.html when the
   loader scrolls into view (see IntersectionObserver in JS). The min-height
   keeps scroll position stable while large diffs are still loading. */
.diff-loader { min-height: 80px; }
.diff-placeholder {
  color: var(--muted);
  padding: 32px;
  text-align: center;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.diff-placeholder::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: middle;
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.3; }
  50%      { opacity: 1; }
}
.diff-error {
  color: var(--removed);
  padding: 20px;
  font-size: 13px;
  font-family: var(--font-mono);
}

/* ============================================================
   APP-SHELL ADDITIONS (client-side rendering states)
============================================================ */
#boot-msg {
  color: var(--muted);
  padding: 60px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
}
#boot-msg.error { color: var(--removed); }