.abbr.acronym-tip,
abbr.acronym-tip {
    position: relative;
    display: inline;
    cursor: help;
    text-decoration: underline dotted rgba(245, 197, 24, 0.45);
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

abbr.acronym-tip:focus {
    outline: none;
}

abbr.acronym-tip:focus-visible {
    outline: 2px solid rgba(245, 197, 24, 0.55);
    outline-offset: 2px;
    border-radius: 2px;
}

abbr.acronym-tip:hover,
abbr.acronym-tip:focus-visible,
abbr.acronym-tip.is-open {
    color: #f5c518;
}

.acronym-tip-popup {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    z-index: 2500;
    min-width: 10rem;
    max-width: 16rem;
    padding: 0.55rem 0.7rem;
    border-radius: 2px;
    border: 1px solid #2a3a52;
    border-left: 3px solid #f5c518;
    background: linear-gradient(180deg, #1e2a3d 0%, #141c2e 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.06),
        0 12px 32px -8px rgba(0, 0, 0, 0.65);
    text-align: left;
    white-space: normal;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(6px);
    transition:
        opacity 0.15s ease,
        transform 0.15s ease,
        visibility 0.15s ease;
}

.acronym-tip-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #141c2e;
}

.acronym-tip-popup.flip-below {
    bottom: auto;
    top: calc(100% + 10px);
    transform: translateX(-50%) translateY(-6px);
}

.acronym-tip-popup.flip-below::after {
    top: auto;
    bottom: 100%;
    border-top-color: transparent;
    border-bottom-color: #141c2e;
}

abbr.acronym-tip:hover .acronym-tip-popup,
abbr.acronym-tip:focus-visible .acronym-tip-popup,
abbr.acronym-tip.is-open .acronym-tip-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

abbr.acronym-tip.is-open .acronym-tip-popup.flip-below,
abbr.acronym-tip:hover .acronym-tip-popup.flip-below,
abbr.acronym-tip:focus-visible .acronym-tip-popup.flip-below {
    transform: translateX(-50%) translateY(0);
}

.acronym-tip-code {
    display: block;
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #f5c518;
}

.acronym-tip-full {
    display: block;
    margin-top: 0.2rem;
    font-family: 'Barlow Condensed', system-ui, sans-serif;
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: 0.02em;
    text-transform: none;
    color: #fff;
    text-decoration: none;
}

.acronym-tip-type {
    display: block;
    margin-top: 0.25rem;
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.5625rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #64748b;
}

@media (prefers-reduced-motion: reduce) {
    .acronym-tip-popup {
        transition: none;
    }
}

@media (hover: none) {
    abbr.acronym-tip {
        cursor: pointer;
    }
}