/* ================================================================
     RepoRadar glassmorphism mockup
     - Frosted translucent panels (backdrop-filter) over soft gradient
       orbs; light and dark themes; same DOM, tokens swap only.
     - Structure mirrors the production contract: ranked results
       render first, the synthesized answer and citations stream after.
     ================================================================ */

  :root {
    /* typography */
    --font: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;

    /* layout */
    --content-max: 1120px;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;

    /* accent stays in the blue family for continuity with the current UI */
    --accent: #2563eb;
    --accent-strong: #1d4ed8;
    --accent-ink: #ffffff;

    /* motion */
    --speed: 220ms;
  }

  /* ---- light theme (default) ---- */
  :root,
  html[data-theme="light"] {
    /* Live-verified bug (2026-08-20): a global `color-scheme: light dark`
       let the browser draw native controls (the <select> dropdown popup)
       per the OS/browser preference instead of this app's own data-theme —
       our dark-theme text color could land on a browser-drawn light popup
       background, unreadable. Scoping color-scheme to each theme block
       keeps native controls in sync with data-theme instead. */
    color-scheme: light;
    --bg-base: #eef2f9;
    --text: #101828;
    --text-soft: #475467;
    --text-faint: #98a2b3;

    --glass-bg: rgba(255, 255, 255, 0.55);
    --glass-bg-strong: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(255, 255, 255, 0.65);
    --glass-border-soft: rgba(16, 24, 40, 0.08);
    --glass-shadow: 0 8px 32px rgba(16, 24, 40, 0.10);
    --glass-inner: inset 0 1px 0 rgba(255, 255, 255, 0.8);

    --orb-1: #93c5fd;  /* sky */
    --orb-2: #c4b5fd;  /* violet */
    --orb-3: #99f6e4;  /* teal */

    --chip-bg: rgba(255, 255, 255, 0.6);
    --chip-hover: rgba(255, 255, 255, 0.9);

    --score-track: rgba(16, 24, 40, 0.08);
    --ok: #067647;
    --err: #b42318;
    --skeleton: rgba(16, 24, 40, 0.06);
  }

  /* ---- dark theme ---- */
  html[data-theme="dark"] {
    color-scheme: dark;
    --bg-base: #0b0e17;
    --text: #e6eaf2;
    --text-soft: #a5aec2;
    --text-faint: #5d6780;

    --glass-bg: rgba(23, 28, 44, 0.55);
    --glass-bg-strong: rgba(23, 28, 44, 0.75);
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-border-soft: rgba(255, 255, 255, 0.07);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
    --glass-inner: inset 0 1px 0 rgba(255, 255, 255, 0.08);

    --accent: #60a5fa;
    --accent-strong: #3b82f6;
    --accent-ink: #0b0e17;

    --orb-1: #1d4ed8;  /* deep blue */
    --orb-2: #6d28d9;  /* violet */
    --orb-3: #0f766e;  /* teal */

    --chip-bg: rgba(255, 255, 255, 0.06);
    --chip-hover: rgba(255, 255, 255, 0.12);

    --score-track: rgba(255, 255, 255, 0.10);
    --ok: #34d399;
    --err: #f87171;
    --skeleton: rgba(255, 255, 255, 0.07);
  }

  * { box-sizing: border-box; }

  html, body { height: 100%; }

  body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg-base);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    transition: background var(--speed) ease, color var(--speed) ease;
    overflow-x: hidden;
  }

  /* ---- background orbs (the colour the glass refracts) ---- */
  .orbs { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
  .orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.55;
    animation: drift 26s ease-in-out infinite alternate;
  }
  .orb-1 { width: 44vw; height: 44vw; background: var(--orb-1); top: -12vw; left: -8vw; }
  .orb-2 { width: 38vw; height: 38vw; background: var(--orb-2); top: 24vh; right: -10vw; animation-delay: -8s; }
  .orb-3 { width: 30vw; height: 30vw; background: var(--orb-3); bottom: -12vw; left: 28vw; animation-delay: -16s; }
  @keyframes drift {
    from { transform: translate3d(0, 0, 0) scale(1); }
    to   { transform: translate3d(4vw, 3vh, 0) scale(1.12); }
  }
  @media (prefers-reduced-motion: reduce) {
    .orb { animation: none; }
    *, *::before, *::after { transition: none !important; animation: none !important; }
  }

  /* ---- glass primitives ---- */
  .glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow), var(--glass-inner);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    backdrop-filter: blur(18px) saturate(160%);
  }

  /* ---- top bar ---- */
  .topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--glass-bg-strong);
    border-bottom: 1px solid var(--glass-border-soft);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    backdrop-filter: blur(18px) saturate(160%);
  }
  .topbar-inner {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    /* Reset button defaults — this is a <button> so the topbar can act as a
       "back to home" control, but it must look identical to the plain label
       it replaced. */
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    color: inherit;
    font-family: inherit;
    cursor: pointer;
    border-radius: 6px;
  }
  .brand:hover { opacity: 0.8; }
  .brand:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
  .brand-mark {
    width: 30px; height: 30px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--accent), var(--orb-2));
    display: grid;
    place-items: center;
    color: #fff;
    flex: none;
  }
  .topbar-spacer { flex: 1; }

  .icon-button {
    display: inline-grid;
    place-items: center;
    width: 38px; height: 38px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border-soft);
    background: var(--chip-bg);
    color: var(--text-soft);
    cursor: pointer;
    transition: background var(--speed), color var(--speed), transform var(--speed);
  }
  .icon-button:hover { background: var(--chip-hover); color: var(--text); }
  .icon-button:active { transform: scale(0.95); }
  .icon-button svg { width: 18px; height: 18px; }
  .icon-button:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }

  /* ---- layout ---- */
  main {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 24px 20px 64px;
  }

  /* ---- landing (hero search) ---- */
  .landing {
    min-height: calc(100vh - 200px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
  }
  .landing h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin: 0 0 8px;
    letter-spacing: -0.03em;
  }
  .landing .tagline {
    margin: 0 auto 28px;
    color: var(--text-soft);
    font-size: 1.05rem;
    max-width: 46ch;
    text-align: center;
  }

  .search-shell { width: min(680px, 100%); }
  .search-box {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 8px 8px 18px;
    border-radius: 999px;
    transition: box-shadow var(--speed), border-color var(--speed);
  }
  .search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent),
                var(--glass-shadow), var(--glass-inner);
  }
  .search-box .lead-icon { color: var(--text-faint); flex: none; }
  .search-box input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    font-size: 1.05rem;
    color: var(--text);
    padding: 8px 0;
  }
  .search-box input::placeholder { color: var(--text-faint); }
  .search-box input:focus { outline: none; }

  .btn-primary {
    border: none;
    border-radius: 999px;
    padding: 10px 22px;
    font-size: 0.95rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: var(--accent-ink);
    cursor: pointer;
    flex: none;
    transition: filter var(--speed), transform var(--speed);
  }
  .btn-primary:hover { filter: brightness(1.08); }
  .btn-primary:active { transform: scale(0.97); }

  .btn-secondary {
    border: 1px solid var(--glass-border-soft);
    border-radius: 999px;
    padding: 8px 18px;
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--chip-bg);
    color: var(--text);
    cursor: pointer;
    flex: none;
    margin: 10px 0;
    transition: filter var(--speed), transform var(--speed);
  }
  .btn-secondary:hover { filter: brightness(1.08); }
  .btn-secondary:active { transform: scale(0.97); }
  .btn-secondary:disabled { opacity: 0.6; cursor: default; }

  .landing-compare-cta {
    width: 100%;
    margin-top: 14px;
    padding: 13px 16px;
    display: grid;
    grid-template-columns: 28px 1fr auto;
    align-items: center;
    gap: 10px;
    border-radius: var(--radius-md);
    color: var(--text);
    text-align: left;
    cursor: pointer;
    transition: border-color var(--speed), background var(--speed), transform var(--speed);
  }
  .landing-compare-cta > svg { color: var(--accent); }
  .landing-compare-cta strong,
  .landing-compare-cta small { display: block; }
  .landing-compare-cta strong { font-size: 0.92rem; }
  .landing-compare-cta small { margin-top: 1px; color: var(--text-soft); font-size: 0.8rem; }
  .landing-compare-arrow { color: var(--accent); font-size: 1.2rem; transition: transform var(--speed); }
  .landing-compare-cta:hover { background: var(--glass-bg-strong); border-color: var(--accent); transform: translateY(-1px); }
  .landing-compare-cta:hover .landing-compare-arrow { transform: translateX(3px); }

  .examples { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 20px; }
  .chip {
    border: 1px solid var(--glass-border-soft);
    background: var(--chip-bg);
    color: var(--text-soft);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background var(--speed), color var(--speed), transform var(--speed);
  }
  .chip:hover { background: var(--chip-hover); color: var(--text); transform: translateY(-1px); }

  /* ---- results layout ---- */
  .results-layout { display: none; }
  .results-layout[data-active="true"] { display: block; }
  .results-bar { margin-bottom: 18px; }
  .results-bar .search-box { border-radius: var(--radius-md); padding-right: 10px; }

  .status-line {
    min-height: 22px;
    margin: 0 0 14px 2px;
    font-size: 0.85rem;
    color: var(--text-soft);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .spinner {
    width: 13px; height: 13px;
    border-radius: 50%;
    border: 2px solid var(--score-track);
    border-top-color: var(--accent);
    animation: spin 0.8s linear infinite;
    flex: none;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  .banner {
    display: none;
    margin: 0 0 14px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--err);
    background: color-mix(in srgb, var(--err) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--err) 30%, transparent);
  }
  .banner[data-visible="true"] { display: block; }

  /* ---- results toolbar (sort) ---- */
  .results-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 14px 2px;
  }
  .sort-label { font-size: 0.82rem; color: var(--text-soft); }
  #sort-select {
    font-family: inherit;
    font-size: 0.85rem;
    color: var(--text);
    background: var(--chip-bg);
    border: 1px solid var(--glass-border-soft);
    border-radius: var(--radius-sm);
    padding: 5px 10px;
    cursor: pointer;
  }
  /* Explicit solid colors (not the translucent --chip-bg) on the options
     themselves — Chrome/Firefox paint the popup list from these rather than
     the select's own background, so the popup needs its own opaque values
     to read correctly against `color-scheme` in either theme. */
  #sort-select option {
    color: var(--text);
    background-color: var(--bg-base);
  }

  /* ---- result cards ---- */
  .results-list { display: flex; flex-direction: column; gap: 12px; }
  .result-card {
    position: relative;
    border-radius: var(--radius-md);
    padding: 16px 18px;
    transition: transform var(--speed), box-shadow var(--speed), border-color var(--speed);
  }
  .result-card:hover {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--accent) 45%, var(--glass-border));
  }
  .result-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
  .result-title {
    font-family: var(--mono);
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
  }
  .result-title:hover { text-decoration: underline; }
  /* Stretched-link pattern: the title's own <a> is extended to cover the
     whole card via ::after, so the entire card is clickable while keyboard
     nav, screen readers, and ctrl/middle-click still target one real link
     (no JS click-hijacking, no nested-link ambiguity). */
  a.result-title::after {
    content: "";
    position: absolute;
    inset: 0;
  }
  .stars { font-size: 0.8rem; color: var(--text-faint); display: inline-flex; align-items: center; gap: 4px; }
  .stars svg { width: 13px; height: 13px; fill: #f59e0b; }
  .score-badge {
    margin-left: auto;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--text-soft);
    background: var(--chip-bg);
    border: 1px solid var(--glass-border-soft);
    border-radius: 999px;
    padding: 2px 10px;
    flex: none;
  }
  .result-desc {
    margin: 8px 0 12px;
    color: var(--text-soft);
    font-size: 0.9rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .score-breakdown { display: flex; gap: 14px; flex-wrap: wrap; }
  .score-leg { display: flex; align-items: center; gap: 6px; font-size: 0.72rem; color: var(--text-faint); }
  .score-leg .track {
    width: 64px; height: 4px;
    border-radius: 2px;
    background: var(--score-track);
    overflow: hidden;
  }
  .score-leg .fill { height: 100%; border-radius: 2px; background: var(--accent); }
  .score-leg.pagerank .fill { background: var(--orb-2); }
  .score-leg.popularity .fill { background: var(--orb-3); }

  /* ---- pagination ---- */
  .pagination {
    /* Default hidden via a stylesheet rule, not an inline style="" attribute
       — CSP's style-src 'self' strips inline style attributes (same class
       of bug already fixed for #compare-readme-input; see that rule's
       comment). app.js's renderPagination toggles this the same way: by
       setting .style.display at runtime, which CSP does not block. */
    display: none;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin: 20px 0 4px;
  }
  .btn-page {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    background: var(--chip-bg);
    border: 1px solid var(--glass-border-soft);
    border-radius: var(--radius-sm);
    padding: 7px 16px;
    cursor: pointer;
    transition: background var(--speed), transform var(--speed);
  }
  .btn-page:hover:not(:disabled) { background: var(--chip-hover); }
  .btn-page:active:not(:disabled) { transform: scale(0.97); }
  .btn-page:disabled { opacity: 0.45; cursor: default; }
  .page-indicator { font-size: 0.82rem; color: var(--text-soft); font-family: var(--mono); }

  .empty-state {
    border-radius: var(--radius-md);
    padding: 40px 24px;
    text-align: center;
    color: var(--text-soft);
  }
  .empty-state strong { display: block; color: var(--text); margin-bottom: 4px; font-size: 1.05rem; }

  /* ---- skeletons ---- */
  .skeleton-card { border-radius: var(--radius-md); padding: 16px 18px; }
  .sk { border-radius: 6px; background: var(--skeleton); animation: pulse 1.4s ease-in-out infinite; }
  @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.45; } }
  .sk-title { width: 38%; height: 14px; margin-bottom: 10px; }
  .sk-line { width: 92%; height: 10px; margin-bottom: 6px; }
  .sk-line.short { width: 61%; }

  /* ---- compare: "compare your own repo" ----
     Third top-level view alongside .landing and .results-layout, toggled
     the same way (dataset.active) — see app.js's toCompareView. */
  .compare-layout { display: none; }
  .compare-layout[data-active="true"] { display: block; }

  .compare-hero { max-width: 760px; margin: 48px auto 28px; text-align: center; }
  .compare-hero h1 { font-size: 1.6rem; margin: 0 0 8px; }
  .compare-hero p { color: var(--text-soft); font-size: 0.95rem; margin: 0; }

  .compare-form { display: flex; gap: 10px; max-width: 640px; margin: 20px auto 0; padding: 8px; }
  .compare-form input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 0.95rem;
    color: var(--text);
    padding: 8px 6px;
    outline: none;
  }
  .compare-form input::placeholder { color: var(--text-faint); }
  .compare-form textarea {
    /* Default hidden (repo-URL mode) via a stylesheet rule, not an inline
       style="" attribute — CSP's style-src 'self' strips inline style
       attributes (same fix already applied to #icon-moon/#citations/
       #generate-answer; see applyTheme's comment). app.js's setCompareMode
       toggles this the same way those toggle theirs: by setting
       .style.display at runtime, which CSP does not block. Without this,
       the textarea rendered visible underneath the repo input on load,
       squeezing both into the same row on narrow screens — live-verified
       bug (2026-08-20, mobile screenshot). */
    display: none;
    flex: 1;
    border: none;
    background: transparent;
    font: inherit;
    font-size: 0.9rem;
    color: var(--text);
    padding: 8px 6px;
    outline: none;
    resize: vertical;
    min-height: 40px;
    max-height: 160px;
  }
  .compare-form textarea::placeholder { color: var(--text-faint); }

  .mode-toggle { display: flex; justify-content: center; gap: 6px; margin: 14px 0 0; }
  .mode-toggle button {
    font-family: inherit;
    font-size: 0.8rem;
    color: var(--text-soft);
    background: var(--chip-bg);
    border: 1px solid var(--glass-border-soft);
    border-radius: 999px;
    padding: 5px 14px;
    cursor: pointer;
  }
  .mode-toggle button[aria-pressed="true"] {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: var(--accent-ink);
    border-color: transparent;
  }

  .compare-body { max-width: 900px; margin: 32px auto 0; }

  .source-card { display: flex; align-items: flex-start; gap: 16px; padding: 18px 20px; margin-bottom: 28px; }
  .source-card .avatar {
    width: 44px; height: 44px;
    border-radius: 10px;
    flex: none;
    background: linear-gradient(135deg, var(--accent), var(--orb-2));
    display: flex; align-items: center; justify-content: center;
    color: var(--accent-ink);
    font-weight: 700;
    font-family: var(--mono);
  }
  .source-card .meta { flex: 1; min-width: 0; }
  .source-card .meta .title { font-family: var(--mono); font-weight: 600; font-size: 1rem; }
  .source-card .meta .desc { color: var(--text-soft); font-size: 0.88rem; margin: 4px 0 0; }

  .match-list { display: flex; flex-direction: column; gap: 14px; }
  .match-card { padding: 18px 20px; }
  .match-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 4px; }
  .match-title {
    font-family: var(--mono);
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.95rem;
  }
  .match-title:hover { text-decoration: underline; }
  .match-score { margin-left: auto; display: flex; align-items: center; gap: 8px; flex: none; }
  .match-score .pct {
    font-family: var(--mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    min-width: 38px;
    text-align: right;
  }
  .match-score .track { width: 90px; height: 6px; border-radius: 3px; background: var(--score-track); overflow: hidden; }
  .match-score .fill { display: block; height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--orb-2), var(--accent)); }
  .match-desc { color: var(--text-soft); font-size: 0.88rem; margin: 6px 0 12px; }
  .match-discovered-via { color: var(--text-faint, var(--text-soft)); font-size: 0.78rem; margin: -8px 0 12px; }

  .concepts-toggle {
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent);
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
  }
  .concepts-toggle:hover { text-decoration: underline; }
  .concepts-toggle:disabled { color: var(--text-faint); cursor: default; text-decoration: none; }
  .concepts-toggle-all {
    display: block;
    margin: 0 0 12px 2px;
    padding: 6px 0;
  }

  .concepts-block {
    border-top: 1px solid var(--glass-border-soft);
    padding-top: 12px;
    margin-top: 12px;
    font-size: 0.86rem;
    color: var(--text);
    line-height: 1.5;
    white-space: pre-line;
  }
  .concepts-block:empty { display: none; }
  .concepts-records { display: grid; gap: 12px; }
  .concept-record {
    padding: 12px;
    border: 1px solid var(--glass-border-soft);
    border-radius: 10px;
    background: var(--chip-bg);
  }
  .concept-field { margin: 0 0 7px; white-space: normal; }
  .concept-field:last-child { margin-bottom: 0; }
  .concept-field strong, .concept-abstention strong { color: var(--text-soft); }
  .concept-abstention { margin: 0; color: var(--text-soft); white-space: normal; }
  .concepts-copy-btn {
    display: inline-flex;
    align-items: center;
    margin-top: 10px;
    padding: 4px 12px;
    border-radius: 999px;
    border: 1px solid var(--glass-border-soft);
    background: var(--chip-bg);
    color: var(--text-soft);
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    transition: filter var(--speed), color var(--speed), border-color var(--speed);
  }
  .concepts-copy-btn:hover { filter: brightness(1.1); color: var(--text); }
  .concepts-copy-btn.copied { color: var(--accent); border-color: var(--accent); }

  /* ---- ask: floating chat bubble + panel ----
     Deliberately separate from search (REQ-010/ADR-0003 already keep
     retrieval independent of synthesis at the API level) — this is that
     same separation carried into the UI, so a search never pays the
     CPU-bound LLM cost unless the user explicitly opens this and asks. */
  .chat-bubble {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 52px; height: 52px;
    border-radius: 50%;
    border: none;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--accent), var(--orb-2));
    color: #fff;
    box-shadow: var(--glass-shadow);
    cursor: pointer;
    z-index: 30;
    transition: transform var(--speed);
  }
  .chat-bubble:hover { transform: scale(1.06); }
  .chat-bubble:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

  .chat-panel {
    position: fixed;
    right: 24px;
    bottom: 88px;
    width: min(400px, calc(100vw - 48px));
    max-height: min(70vh, 640px);
    padding: 18px;
    border-radius: var(--radius-md);
    z-index: 30;
    display: none;
    flex-direction: column;
    overflow-y: auto;
  }
  .chat-panel[data-open="true"] { display: flex; }
  .chat-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
  }
  .chat-form { display: flex; gap: 8px; margin-bottom: 8px; }
  .chat-form input {
    flex: 1;
    min-width: 0;
    padding: 9px 12px;
    border-radius: 999px;
    border: 1px solid var(--glass-border-soft);
    background: var(--chip-bg);
    color: var(--text);
    font-size: 0.88rem;
  }
  .chat-form input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .chat-panel .status-line { margin: 0 0 8px; }

  .chat-panel-head h2 {
    margin: 0;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-faint);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .excerpt-body { font-size: 0.92rem; white-space: pre-wrap; }
  .excerpt-body .excerpt-source {
    display: block;
    margin-top: 6px;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--text-faint);
  }
  .answer-body { font-size: 0.92rem; white-space: pre-wrap; }
  /* Hidden until a question is asked — see the CSP note above #icon-moon
     for why this is a stylesheet default rather than an inline style="". */
  #generate-answer { display: none; }
  .answer-body .caret {
    display: inline-block;
    width: 7px; height: 15px;
    background: var(--accent);
    border-radius: 1px;
    vertical-align: text-bottom;
    animation: pulse 0.9s ease-in-out infinite;
    margin-left: 1px;
  }
  /* Hidden by default so index.html needs no inline style="" (CSP style-src
     'self' blocks that, per ops/traefik/ghgraph.yml's ghgraph-headers) — the
     JS toggle in app.js still overrides this at runtime via .style.display,
     which the same CSP directive does not restrict. */
  #icon-moon { display: none; }
  #citations { display: none; }
  .citations { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--glass-border-soft); }
  .citations h3 { margin: 0 0 8px; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-faint); }
  .citations ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
  .citations a {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--accent);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
  .citations a:hover { text-decoration: underline; }
  .citations .n {
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--chip-bg);
    border: 1px solid var(--glass-border-soft);
    color: var(--text-soft);
    font-size: 0.66rem;
    display: inline-grid;
    place-items: center;
    font-family: var(--font);
    flex: none;
  }
  .answer-idle { color: var(--text-faint); font-size: 0.85rem; }

  /* Responsiveness consistency check (2026-08-20, user request): this was
     the only @media rule in the whole stylesheet before this one — every
     other layout is fluid (flex/grid + min()/clamp()), which holds up fine
     down to a real 360px phone width, verified across the landing page,
     search results, and compare results. `.chat-panel` was the one real
     exception: `width: min(400px, calc(100vw - 48px))` and
     `bottom: 88px` keep it a small floating card anchored to a corner even
     on a phone, so at 360px it renders as a card visibly smaller than the
     viewport — page content bleeds through the gaps above and beside it,
     and `.chat-bubble` (same corner, only 12px away) stays visible peeking
     out from behind it. On mobile, an anchored floating panel should become
     a full-screen sheet, same as almost every mobile chat/dialog pattern.
     600px matches the width other phones in common use top out around. */
  @media (max-width: 600px) {
    .chat-panel {
      inset: 0;
      width: 100%;
      max-height: 100%;
      height: 100%;
      border-radius: 0;
    }
  }

  /* Signal Glass — approved RepoRadar workspace
     The API's existing search/compare markup remains intact; these rules
     compose it into the approved signal-intelligence shell. */
  html[data-theme="dark"] {
    --bg-base: #070b19;
    --glass-bg: rgba(13, 20, 42, 0.68);
    --glass-bg-strong: rgba(17, 26, 54, 0.78);
    --glass-border: rgba(185, 204, 255, 0.16);
    --glass-border-soft: rgba(185, 204, 255, 0.13);
    --glass-shadow: 0 30px 90px rgba(0, 0, 0, 0.34);
    --accent: #9bb6ff;
    --accent-strong: #6af0d3;
    --accent-ink: #071122;
    --text: #f5f7ff;
    --text-soft: #a5b1d0;
    --text-faint: #7886aa;
  }
  .app-shell { min-height: 100%; }
  .app-shell .orbs { background: radial-gradient(circle at 50% -20%, #172f6b 0, transparent 42%), #070b19; }
  .app-shell .orb { opacity: .45; filter: blur(100px); }
  .app-shell .orb-1 { background: #263df0; }
  .app-shell .orb-2 { background: #a13eea; }
  .app-shell .orb-3 { background: #02b7aa; }
  .app-shell .topbar { top: 14px; width: min(1440px, calc(100% - 40px)); margin: 0 auto; border: 1px solid var(--glass-border); border-radius: 20px; background: linear-gradient(110deg, rgba(22, 35, 75, .86), rgba(75, 29, 143, .74)); box-shadow: var(--glass-shadow), inset 0 1px rgba(255,255,255,.1); }
  .app-shell .topbar-inner { max-width: none; width: 100%; padding: 10px 14px; }
  .app-shell .brand-mark { width: 38px; height: 38px; border-radius: 13px; background: linear-gradient(135deg, rgba(150,180,255,.45), rgba(83,232,204,.21)); border: 1px solid rgba(209,223,255,.42); box-shadow: inset 0 1px rgba(255,255,255,.28), 0 9px 24px rgba(72,100,255,.25); }
  .app-shell .signal-mark svg { overflow: visible; }
  .app-shell .signal-mark path { fill: none; stroke: #e5ebff; stroke-width: 1.7; stroke-linecap: round; }
  .app-shell .signal-mark circle { fill: #6af0d3; filter: drop-shadow(0 0 5px #6af0d3); }
  .primary-nav { display: flex; gap: 4px; margin-left: 26px; }
  .nav-link { border: 0; background: transparent; color: var(--text-soft); border-radius: 11px; padding: 9px 13px; cursor: pointer; font: inherit; }
  .nav-link:hover, .nav-link.active { background: rgba(255,255,255,.1); color: var(--text); }
  .app-shell main.workspace-grid { max-width: 1440px; display: grid; grid-template-columns: 220px minmax(0, 1fr) 270px; gap: 18px; padding: 22px 0 64px; }
  .workspace-sidebar, .workspace-insight { display: block; height: max-content; border-radius: 24px; padding: 17px; }
  .workspace-label, .eyebrow { margin: 0; color: #8d9abd; font-size: .66rem; font-weight: 750; letter-spacing: .15em; text-transform: uppercase; }
  .side-link { width: 100%; display: flex; align-items: center; gap: 10px; margin-top: 6px; padding: 11px 10px; border: 0; border-radius: 12px; color: var(--text-soft); background: transparent; text-align: left; font: inherit; cursor: pointer; }
  .side-link.active, .side-link:hover { color: var(--text); background: linear-gradient(100deg, rgba(125,159,255,.22), rgba(106,240,211,.09)); }
  .saved-signals { margin-top: 23px; padding-top: 17px; border-top: 1px solid var(--glass-border-soft); display: grid; gap: 11px; }
  .saved-signals span { color: var(--text-soft); font-size: .82rem; }
  .workspace-content { min-width: 0; }
  .app-shell .landing { min-height: 436px; justify-content: center; align-items: stretch; padding: 32px; border-radius: 24px; text-align: left; background: linear-gradient(135deg, rgba(23,40,88,.76), rgba(22,19,58,.56)); border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow), inset 0 1px rgba(255,255,255,.09); }
  .landing .search-shell { width: min(850px, 100%); }
  .landing h1 { max-width: 650px; font-size: clamp(2.4rem, 4.5vw, 4rem); line-height: 1.02; letter-spacing: -.065em; margin: 10px 0 13px; }
  .landing .tagline { max-width: 580px; text-align: left; margin: 0 0 26px; font-size: 1rem; }
  .index-live::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: #6af0d3; box-shadow: 0 0 8px #6af0d3; }
  .app-shell .search-box { border-radius: 17px; background: rgba(3,8,23,.48); border-color: rgba(210,222,255,.2); }
  .app-shell .btn-primary { border-radius: 12px; background: linear-gradient(135deg, #a7bfff, #65eed5); box-shadow: 0 8px 22px rgba(92,194,236,.25); }
  .app-shell .landing-compare-cta { max-width: 580px; border-color: rgba(106,240,211,.28); background: linear-gradient(135deg, rgba(91,235,209,.13), rgba(116,149,255,.12)); }
  .app-shell .results-layout[data-active="true"] { margin-top: 27px; }
  .app-shell .results-bar { margin-bottom: 12px; }
  .app-shell .result-card, .app-shell .match-card { border-radius: 18px; background: linear-gradient(120deg, rgba(24,34,68,.8), rgba(11,37,49,.68)); }
  .app-shell .result-card:hover { transform: translateY(-2px); border-color: rgba(160,183,255,.42); }
  .app-shell .score-leg.hybrid .fill { background: linear-gradient(90deg, #c490ff, #86a8ff, #6af0d3); }
  .app-shell .score-leg.pagerank .fill { background: #c490ff; }
  .app-shell .score-leg.popularity .fill { background: #ffc56b; }
  .workspace-insight h2 { margin: 9px 0 3px; font-size: 1rem; letter-spacing: -.04em; }
  .insight-copy { margin: 0; color: var(--text-soft); font-size: .78rem; }
  .signal-radar { position: relative; width: 178px; aspect-ratio: 1; margin: 20px auto 16px; border: 1px solid rgba(160,185,255,.26); border-radius: 50%; background: repeating-radial-gradient(circle, transparent 0 29px, rgba(168,190,255,.1) 30px 31px), linear-gradient(125deg, rgba(114,150,255,.16), transparent 64%); overflow: hidden; }
  .signal-radar::before, .signal-radar::after { content: ""; position: absolute; background: rgba(178,197,255,.2); }
  .signal-radar::before { width: 1px; inset: 0 auto 0 50%; } .signal-radar::after { height: 1px; inset: 50% 0 auto; }
  .radar-sweep { position: absolute; inset: 9px; border-radius: 50%; background: conic-gradient(from 210deg, transparent 0 270deg, rgba(96,238,211,.34) 358deg, transparent); animation: radar-sweep 5s linear infinite; }
  .signal-radar i, .signal-radar b, .signal-radar em { position:absolute; border-radius:50%; width:7px; height:7px; background:#6af0d3; box-shadow:0 0 13px #6af0d3; }
  .signal-radar i{top:38px;right:36px}.signal-radar b{bottom:42px;left:35px;background:#c490ff;box-shadow:0 0 13px #c490ff}.signal-radar em{top:79px;left:71px;width:5px;height:5px;background:#ffc56b;box-shadow:0 0 13px #ffc56b}@keyframes radar-sweep{to{transform:rotate(360deg)}}
  .radar-stat { display: flex; justify-content: space-between; padding: 11px 0; border-top: 1px solid var(--glass-border-soft); color: var(--text-soft); font-size: .75rem; }.radar-stat strong{color:var(--text)}
  .radar-compare { width: 100%; margin-top: 16px; padding: 14px; border: 1px solid rgba(105,239,212,.28); border-radius: 16px; color: var(--text); text-align: left; background: linear-gradient(135deg, rgba(91,235,209,.14), rgba(116,149,255,.13)); }.radar-compare small{display:block;color:#bfd9e9;margin-top:4px}
  /* The compare view is the exact command-bar composition from the approved
     Signal Glass mockup: task tabs, one decisive URL field, then topic cues. */
  .app-shell .compare-layout[data-active="true"] { display: block; margin: 0; }
  .app-shell .signal-compare-hero { max-width: none; min-height: 0; margin: 0; padding: 32px; text-align: left; border-radius: 24px; background: linear-gradient(135deg, rgba(36, 54, 147, .76), rgba(17, 24, 49, .72) 62%, rgba(22, 19, 58, .72)); }
  .compare-tabs { display: flex; gap: 10px; margin-bottom: 18px; }
  .compare-tabs button { border: 1px solid transparent; border-radius: 999px; padding: 11px 17px; color: var(--text-soft); background: rgba(7, 12, 42, .36); font: inherit; cursor: pointer; }
  .compare-tabs button[aria-selected="true"] { color: var(--text); border-color: rgba(158, 182, 255, .55); background: rgba(137, 160, 247, .22); }
  .app-shell .compare-form { max-width: none; margin: 0; padding: 10px 14px 10px 24px; border-radius: 22px; background: rgba(4, 9, 30, .66); box-shadow: inset 0 1px rgba(255,255,255,.08), 0 12px 28px rgba(0,0,0,.18); }
  .app-shell .compare-form input { font-size: 1.24rem; padding: 10px 8px; }
  .app-shell .compare-form .btn-primary { padding: 17px 27px; font-size: 1.06rem; }
  .app-shell .compare-form textarea { font-size: 1rem; }
  .app-shell .mode-toggle { justify-content: flex-start; margin: 16px 0 0; }
  .compare-query-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
  .compare-query-chips span { color: #c1cdea; border: 1px solid rgba(185,204,255,.2); background: rgba(255,255,255,.06); border-radius: 999px; padding: 9px 14px; font-size: .88rem; }
  .app-shell .compare-body { max-width: none; margin: 20px 0 0; }
  @media (max-width: 1050px) { .app-shell main.workspace-grid { grid-template-columns: 190px minmax(0, 1fr); } .workspace-insight { display: none; } }
  @media (max-width: 720px) { .app-shell .topbar { width: calc(100% - 24px); top: 12px; } .primary-nav, .workspace-sidebar { display: none; } .app-shell main.workspace-grid { display: block; padding: 12px 12px 48px; } .app-shell .landing, .app-shell .signal-compare-hero { min-height: 0; padding: 23px 18px; } .landing h1 { font-size: 2.25rem; } .app-shell .landing-compare-cta { max-width: none; } .app-shell .compare-form { padding: 8px 8px 8px 16px; } .app-shell .compare-form input { font-size: .96rem; } .app-shell .compare-form .btn-primary { padding: 13px 16px; } .compare-tabs button { padding: 9px 12px; font-size: .84rem; } .compare-query-chips { gap: 8px; margin-top: 18px; } .compare-query-chips span { padding: 7px 11px; font-size: .78rem; } }