/* Glossary Terms — frontend styles */

.glossary-term {
    border-bottom: 1px dotted var(--glossary-term-underline, currentColor);
    cursor: help;
    color: inherit;
    background: linear-gradient(transparent 60%, rgba(0, 115, 170, 0.12) 60%);
    padding: 0 1px;
    transition: background-color .15s ease;
    outline: none;
}
.glossary-term:hover,
.glossary-term:focus,
.glossary-term[aria-expanded="true"] {
    background-color: rgba(0, 115, 170, 0.18);
}

.glossary-popup {
    position: absolute;
    z-index: 100000;
    max-width: 340px;
    min-width: 220px;
    background: #fff;
    color: #1f2328;
    border: 1px solid #d0d7de;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    padding: 14px 16px 14px 16px;
    font-size: 14px;
    line-height: 1.5;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity .12s ease, transform .12s ease;
    pointer-events: none;
}
.glossary-popup.is-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.glossary-popup__title {
    font-weight: 600;
    font-size: 15px;
    margin: 0 0 6px 0;
    padding-right: 20px;
    color: #0969da;
}
.glossary-popup__definition {
    margin: 0;
    color: #1f2328;
}

.glossary-popup__close {
    position: absolute;
    top: 6px;
    right: 8px;
    background: transparent;
    border: 0;
    font-size: 18px;
    line-height: 1;
    color: #6e7781;
    cursor: pointer;
    padding: 4px;
}
.glossary-popup__close:hover {
    color: #1f2328;
}

.glossary-popup__loading {
    color: #6e7781;
    font-style: italic;
    margin: 0;
}

.glossary-popup__error {
    color: #cf222e;
    margin: 0;
}

@media (prefers-color-scheme: dark) {
    .glossary-popup {
        background: #1c1f24;
        color: #e6edf3;
        border-color: #30363d;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
    }
    .glossary-popup__title { color: #58a6ff; }
    .glossary-popup__definition { color: #e6edf3; }
    .glossary-popup__close { color: #8b949e; }
    .glossary-popup__close:hover { color: #e6edf3; }
}

/* Full-width page template (bundled): break out of the theme's narrow column. */
.glt-fullwidth-page {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 40px 24px !important;
    box-sizing: border-box !important;
    background: transparent;
}
@media (max-width: 600px) {
    .glt-fullwidth-page { padding: 24px 12px !important; }
}

/* ── A-Z Glossary Index — TCT-style design, defensive against theme conflicts ── */

/* Hard reset for everything inside the index. Using !important + an explicit
   font stack because some themes apply monospace to <details>, <summary>,
   post content, etc. via inheritance — we cannot trust `font-family: inherit`. */
.glossary-index,
.glossary-index *,
.glossary-index *::before,
.glossary-index *::after {
    box-sizing: border-box !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, "Helvetica Neue", Arial, sans-serif !important;
}

.glossary-index {
    --gl-text: #111827;
    --gl-text-muted: #6b7280;
    --gl-disabled: #d1d5db;
    --gl-border: #e5e7eb;
    --gl-border-strong: #d1d5db;
    --gl-bg: #ffffff;
    --gl-bg-soft: #f9fafb;
    --gl-accent: #2563eb;
    --gl-accent-soft: #eff6ff;
    --gl-radius: 12px;

    display: block !important;
    width: 100% !important;
    max-width: var(--glossary-index-max-width, none) !important;
    margin: 1.5em auto 3em !important;
    padding: 0 !important;
    color: var(--gl-text) !important;
    background: transparent !important;
    font-size: 16px !important;
    line-height: 1.55 !important;
    text-align: left !important;
    box-sizing: border-box !important;
}

/* Centered header: H1 + subtitle. The search wrap below is also constrained
   to the same max-width so it lines up under the heading. */
.glossary-index .glossary-index__header {
    display: block !important;
    text-align: center !important;
    margin: 0 auto 28px !important;
    padding: 0 !important;
    max-width: 720px !important;
    background: transparent !important;
    border: 0 !important;
}
.glossary-index .glossary-index__title {
    display: block !important;
    font-size: 44px !important;
    font-weight: 800 !important;
    line-height: 1.1 !important;
    color: var(--gl-text) !important;
    background: transparent !important;
    border: 0 !important;
    padding: 0 !important;
    margin: 0 0 12px 0 !important;
    text-align: center !important;
    text-transform: none !important;
    letter-spacing: -0.02em !important;
    text-shadow: none !important;
}
.glossary-index .glossary-index__subtitle {
    display: block !important;
    font-size: 17px !important;
    font-weight: 400 !important;
    line-height: 1.5 !important;
    color: #545454 !important;
    background: transparent !important;
    border: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    text-align: center !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
}

/* Search — constrained width and centered, like the reference */
.glossary-index .glossary-index__search-wrap {
    position: relative !important;
    display: block !important;
    max-width: 720px !important;
    margin: 0 auto 1.5em !important;
    padding: 0 !important;
    background: transparent !important;
    border: 0 !important;
}
.glossary-index .glossary-index__search-icon {
    position: absolute !important;
    left: 18px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    pointer-events: none !important;
    color: var(--gl-text-muted) !important;
    z-index: 1 !important;
    background: transparent !important;
}
.glossary-index .glossary-index__search {
    display: block !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 16px 130px 16px 52px !important;
    font-size: 16px !important;
    font-weight: 400 !important;
    line-height: 1.4 !important;
    border: 1px solid var(--gl-border) !important;
    border-radius: var(--gl-radius) !important;
    outline: none !important;
    background: var(--gl-bg) !important;
    color: var(--gl-text) !important;
    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04) !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    transition: border-color .15s, box-shadow .15s;
    text-transform: none !important;
    letter-spacing: 0 !important;
}
.glossary-index .glossary-index__search::placeholder { color: #9ca3af !important; opacity: 1 !important; }
.glossary-index .glossary-index__search:focus {
    border-color: var(--gl-accent) !important;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12) !important;
}
.glossary-index .glossary-index__search-count {
    position: absolute !important;
    right: 14px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    font-size: 12px !important;
    font-weight: 500 !important;
    color: #4b5563 !important;
    white-space: nowrap !important;
    background: var(--gl-bg-soft) !important;
    border: 1px solid var(--gl-border) !important;
    border-radius: 999px !important;
    padding: 4px 10px !important;
    margin: 0 !important;
}
.glossary-index .glossary-index__search-count:empty { display: none !important; }
.glossary-index .glossary-index__no-results {
    display: none;
    padding: 2.5em 1.5em !important;
    text-align: center !important;
    font-size: 15px !important;
    color: var(--gl-text-muted) !important;
    background: var(--gl-bg-soft) !important;
    border-radius: var(--gl-radius) !important;
    border: 1px dashed var(--gl-border-strong) !important;
    margin: 0 0 1.5em 0 !important;
}

/* A-Z filter nav: pill buttons, black active state (matches the reference) */
.glossary-index .glt-az-nav {
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 18px 0 !important;
    background: transparent !important;
    border-top: 1px solid #e5e7eb !important;
    border-bottom: 1px solid #e5e7eb !important;
    border-left: 0 !important;
    border-right: 0 !important;
    margin: 0 0 2em !important;
}
.glossary-index .glt-az-nav__btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: auto !important;
    height: auto !important;
    padding: 7px 13px !important;
    background: transparent !important;
    border: 0 !important;
    border-radius: 7px !important;
    font-size: 15px !important;
    font-weight: 500 !important;
    line-height: 1.2 !important;
    color: #545454 !important;
    text-decoration: none !important;
    text-transform: none !important;
    letter-spacing: -0.02px !important;
    cursor: pointer !important;
    position: relative !important;
    transition: background-color .15s, color .15s !important;
    box-shadow: none !important;
    text-shadow: none !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    margin: 0 !important;
}
.glossary-index .glt-az-nav__btn:hover {
    color: #ffffff !important;
    background: #111827 !important;
}
.glossary-index .glt-az-nav__btn.is-active {
    color: #ffffff !important;
    background: #111827 !important;
}
.glossary-index .glt-az-nav__btn.is-disabled {
    color: var(--gl-disabled) !important;
    pointer-events: none !important;
    background: transparent !important;
}

/* List of letter groups */
.glossary-index .glt-list {
    display: flex !important;
    flex-direction: column !important;
    gap: 36px !important;
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

/* Letter group: section header + items.
   No `display: ... !important` here because JS sets inline `display: none` to filter. */
.glossary-index .glt-group {
    display: flex;
    flex-direction: column !important;
    gap: 16px !important;
    background: transparent !important;
    border: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    scroll-margin-top: 80px;
}
.glossary-index .glt-group__letter {
    display: block !important;
    font-size: 28px !important;
    font-weight: 700 !important;
    line-height: 1.2 !important;
    color: var(--gl-text) !important;
    background: transparent !important;
    border: 0 !important;
    padding: 0 0 8px 0 !important;
    margin: 0 !important;
    text-transform: none !important;
    letter-spacing: -0.02em !important;
    text-align: left !important;
    text-shadow: none !important;
}
.glossary-index .glt-group__items {
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
}
.glossary-index .glt-item {
    background: var(--gl-bg) !important;
    border: 1px solid var(--gl-border) !important;
    border-radius: var(--gl-radius) !important;
    padding: 18px 22px !important;
    margin: 0 !important;
    color: var(--gl-text) !important;
    overflow: hidden;
    transition: border-color .15s, box-shadow .15s;

    /* Perf: skip layout/paint for off-screen cards. With ~1,700 items this is
       the difference between a frozen scroll and a smooth one. */
    content-visibility: auto;
    contain-intrinsic-size: 0 110px;
    contain: layout style;
}
.glossary-index .glt-group {
    /* Same trick at the section level so whole letter blocks below the fold
       skip rendering until scrolled near. */
    content-visibility: auto;
    contain-intrinsic-size: 0 800px;
}
.glossary-index .glt-item:hover {
    border-color: var(--gl-border-strong) !important;
    box-shadow: 0 2px 8px rgba(16, 24, 40, 0.04) !important;
}

.glossary-index .glt-item__term {
    display: block !important;
    font-size: 17px !important;
    font-weight: 600 !important;
    line-height: 1.35 !important;
    color: var(--gl-text) !important;
    background: transparent !important;
    border: 0 !important;
    padding: 0 !important;
    margin: 0 0 6px 0 !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
    text-align: left !important;
    text-shadow: none !important;
    text-decoration: none !important;
}

.glossary-index .glt-item__def {
    display: block !important;
    font-size: 15px !important;
    font-weight: 400 !important;
    line-height: 1.6 !important;
    color: #374151 !important;
    padding: 0 !important;
    background: transparent !important;
    border: 0 !important;
    margin: 0 !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
    text-shadow: none !important;
    text-align: left !important;
}

/* Strip inline-element styling inside terms/defs that themes inject (code/kbd/etc.) */
.glossary-index .glt-item__term code,
.glossary-index .glt-item__term kbd,
.glossary-index .glt-item__term samp,
.glossary-index .glt-item__term tt,
.glossary-index .glt-item__term pre,
.glossary-index .glt-item__def code,
.glossary-index .glt-item__def kbd,
.glossary-index .glt-item__def samp,
.glossary-index .glt-item__def tt,
.glossary-index .glt-item__def pre {
    background: transparent !important;
    background-color: transparent !important;
    padding: 0 !important;
    margin: 0 !important;
    border: 0 !important;
    border-radius: 0 !important;
    font-size: inherit !important;
    font-weight: inherit !important;
    color: inherit !important;
    box-shadow: none !important;
    text-decoration: none !important;
}

/* Search highlight */
.glossary-index mark.glossary-highlight {
    background: #fef3c7 !important;
    color: inherit !important;
    border-radius: 2px !important;
    padding: 0 1px !important;
    margin: 0 !important;
    font-style: normal !important;
    font-weight: 600 !important;
}

/* Mobile tweaks */
@media (max-width: 600px) {
    .glossary-index { font-size: 15px !important; }
    .glossary-index .glossary-index__title { font-size: 32px !important; margin-bottom: 10px !important; }
    .glossary-index .glossary-index__subtitle { font-size: 15px !important; }
    .glossary-index .glossary-index__header { margin-bottom: 20px !important; }
    .glossary-index .glossary-index__search { padding: 14px 14px 14px 46px !important; font-size: 15px !important; }
    .glossary-index .glossary-index__search-icon { left: 14px !important; }
    .glossary-index .glossary-index__search-count { display: none !important; }
    .glossary-index .glt-az-nav__btn { padding: 6px 9px !important; font-size: 14px !important; }
    .glossary-index .glt-group__letter { font-size: 24px !important; }
    .glossary-index .glt-item { padding: 14px 16px !important; }
    .glossary-index .glt-item__term { font-size: 16px !important; }
    .glossary-index .glt-item__def { font-size: 14.5px !important; }
}