/**
 * NEO Knowledge Base - Glossary styles.
 *
 * Self-contained: the auto-link tooltip popover and the A-Z glossary archive /
 * single term page. Uses the shared --nkb-* design custom properties (ADR-006)
 * with hard fallbacks so it renders without the main stylesheet.
 */

/* ===================================================================== *
 *  In-article term + tooltip popover
 * ===================================================================== */
.nkb-glossary {
    position: relative;
    display: inline;
}
.nkb-glossary-term {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px dotted var(--nkb-brand, #48becd);
    cursor: help;
}
.nkb-glossary-term:hover {
    border-bottom-style: solid;
}
/* WCAG 2.4.7 - keep keyboard focus visible. */
.nkb-glossary-term:focus-visible {
    outline: 2px solid #1a3d44;
    outline-offset: 2px;
    border-radius: 2px;
}

.nkb-glossary-tooltip {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 9999;
    width: max-content;
    max-width: 280px;
    margin-top: 8px;
    padding: 12px 14px;
    border-radius: 8px;
    background: #1a3d44;
    color: #fff;
    font-size: 14px;
    line-height: 1.5;
    text-align: left;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
    /* Hidden visually but kept in the accessibility tree for aria-describedby. */
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
}
/* Little pointer. */
.nkb-glossary-tooltip::before {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 16px;
    border: 6px solid transparent;
    border-bottom-color: #1a3d44;
}

.nkb-glossary:hover .nkb-glossary-tooltip,
.nkb-glossary:focus-within .nkb-glossary-tooltip {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
/* Escape-dismissed: hide even while hovered/focused until pointer/focus leaves. */
.nkb-glossary--dismissed .nkb-glossary-tooltip {
    opacity: 0 !important;
    pointer-events: none !important;
}

/* Viewport-edge flips (toggled by nkb-glossary.js). */
.nkb-glossary--flip-x .nkb-glossary-tooltip {
    left: auto;
    right: 0;
}
.nkb-glossary--flip-x .nkb-glossary-tooltip::before {
    left: auto;
    right: 16px;
}
.nkb-glossary--flip-y .nkb-glossary-tooltip {
    top: auto;
    bottom: 100%;
    margin-top: 0;
    margin-bottom: 8px;
    transform: translateY(4px);
}
.nkb-glossary--flip-y.nkb-glossary:hover .nkb-glossary-tooltip,
.nkb-glossary--flip-y.nkb-glossary:focus-within .nkb-glossary-tooltip {
    transform: translateY(0);
}
.nkb-glossary--flip-y .nkb-glossary-tooltip::before {
    bottom: auto;
    top: 100%;
    border-bottom-color: transparent;
    border-top-color: #1a3d44;
}

.nkb-glossary-tooltip-title {
    display: block;
    font-weight: 700;
    margin-bottom: 4px;
}
.nkb-glossary-tooltip-def {
    display: block;
    opacity: 0.92;
}

/* ===================================================================== *
 *  A-Z archive
 * ===================================================================== */
.nkb-glossary-archive,
.nkb-glossary-single {
    max-width: var(--nkb-content-width, 1170px);
    margin: 0 auto;
    padding: var(--nkb-section-spacing, 40px) 15px;
}
.nkb-glossary-archive-header {
    margin-bottom: 24px;
}
.nkb-glossary-archive-title {
    margin: 0 0 8px;
}
.nkb-glossary-filter {
    margin: 16px 0 24px;
}
.nkb-glossary-filter-input {
    width: 100%;
    max-width: 420px;
    padding: 12px 16px;
    font-size: 15px;
    border: 1px solid #d7dce0;
    border-radius: 99px;
    background: #fff;
    color: #333;
}
.nkb-glossary-filter-input:focus {
    outline: none;
    border-color: var(--nkb-brand, #48becd);
    box-shadow: 0 0 0 3px rgba(112, 204, 216, 0.25);
}

.nkb-glossary-letter-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    list-style: none;
    margin: 0 0 28px;
    padding: 0;
}
.nkb-glossary-letter-nav li {
    margin: 0;
}
.nkb-glossary-letter-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 6px;
    border-radius: 6px;
    background: #f2f4f5;
    color: #1a3d44;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
}
.nkb-glossary-letter-nav a:hover,
.nkb-glossary-letter-nav a:focus-visible {
    background: var(--nkb-brand, #70ccd8);
    color: #1a3d44;
    outline: none;
}
.nkb-glossary-letter-nav .is-empty a {
    opacity: 0.4;
    pointer-events: none;
}

.nkb-glossary-group {
    margin: 0 0 32px;
    scroll-margin-top: 80px;
}
.nkb-glossary-group-title {
    margin: 0 0 12px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--nkb-brand, #70ccd8);
    font-size: 22px;
    text-transform: uppercase;
}
.nkb-glossary-archive-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}
.nkb-glossary-archive-item {
    margin: 0;
    padding: 16px 18px;
    border: 1px solid #e6e9eb;
    border-radius: 8px;
    background: #fff;
}
.nkb-glossary-archive-item[hidden] {
    display: none;
}
.nkb-glossary-archive-term {
    display: block;
    margin: 0 0 6px;
    font-size: 16px;
    font-weight: 700;
}
.nkb-glossary-archive-term a {
    color: #1a3d44;
    text-decoration: none;
}
.nkb-glossary-archive-term a:hover {
    text-decoration: underline;
}
.nkb-glossary-archive-def {
    margin: 0;
    /* WCAG 1.4.3 - readable contrast on white. */
    color: #595959;
    font-size: 14px;
    line-height: 1.5;
}
.nkb-glossary-no-matches {
    padding: 24px;
    text-align: center;
    color: #595959;
    background: #f2f4f5;
    border-radius: 8px;
}
.nkb-glossary-empty {
    padding: 40px;
    text-align: center;
    color: #595959;
    background: #f2f4f5;
    border-radius: 8px;
}

/* ===================================================================== *
 *  Breadcrumb (mirrors the core neo .nkb-breadcrumb so glossary pages match
 *  even though the main public stylesheet is not enqueued here).
 * ===================================================================== */
.nkb-glossary-archive .nkb-breadcrumb,
.nkb-glossary-single .nkb-breadcrumb {
    margin: 0 0 24px;
    font-size: 13px;
}
.nkb-glossary-archive .nkb-breadcrumb-list,
.nkb-glossary-single .nkb-breadcrumb-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
}
.nkb-glossary-archive .nkb-breadcrumb-item,
.nkb-glossary-single .nkb-breadcrumb-item {
    display: flex;
    align-items: center;
    color: #9f9f9f;
}
.nkb-glossary-archive .nkb-breadcrumb-item:not(:last-child)::after,
.nkb-glossary-single .nkb-breadcrumb-item:not(:last-child)::after {
    content: "/";
    margin: 0 7px;
    color: #e4e4e4;
}
.nkb-glossary-archive .nkb-breadcrumb-item a,
.nkb-glossary-single .nkb-breadcrumb-item a {
    color: #9f9f9f;
    text-decoration: none;
}
.nkb-glossary-archive .nkb-breadcrumb-item a:hover,
.nkb-glossary-single .nkb-breadcrumb-item a:hover {
    color: var(--nkb-brand, #70ccd8);
    text-decoration: underline;
}
.nkb-glossary-archive .nkb-breadcrumb-item.nkb-breadcrumb-current,
.nkb-glossary-single .nkb-breadcrumb-item.nkb-breadcrumb-current {
    color: #333333;
    font-weight: 500;
}

/* ===================================================================== *
 *  Single term page
 * ===================================================================== */
.nkb-glossary-single-inner {
    max-width: 760px;
    margin: 0 auto;
}
.nkb-glossary-card {
    padding: 40px;
    background: #fff;
    border: 1px solid #e6e9eb;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(26, 61, 68, 0.06);
}
.nkb-glossary-single-header {
    margin: 0 0 28px;
    padding: 0 0 24px;
    border-bottom: 1px solid #eef1f2;
}
.nkb-glossary-single-eyebrow {
    display: inline-block;
    margin: 0 0 14px;
    padding: 4px 12px;
    border-radius: 99px;
    background: var(--nkb-brand, #70ccd8);
    color: #1a3d44;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.nkb-glossary-single-title {
    margin: 0;
    font-size: 34px;
    line-height: 1.2;
    color: #1a3d44;
}
.nkb-glossary-synonyms {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 18px 0 0;
}
.nkb-glossary-synonyms-label {
    color: #595959;
    font-size: 13px;
    font-weight: 600;
}
.nkb-glossary-synonym {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 6px;
    background: #f2f4f5;
    color: #1a3d44;
    font-size: 13px;
    line-height: 1.6;
}
.nkb-glossary-definition {
    font-size: 17px;
    line-height: 1.75;
    color: #333333;
}
.nkb-glossary-definition > :first-child {
    margin-top: 0;
}
.nkb-glossary-definition > :last-child {
    margin-bottom: 0;
}
.nkb-glossary-definition code {
    padding: 2px 6px;
    border-radius: 4px;
    background: #f2f4f5;
    font-size: 0.9em;
}
.nkb-glossary-single-footer {
    margin: 28px 0 0;
}
.nkb-glossary-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 8px;
    background: var(--nkb-brand, #70ccd8);
    color: #1a3d44;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.15s ease;
}
.nkb-glossary-back:hover {
    background: #48becd;
    color: #1a3d44;
}
.nkb-glossary-back:focus-visible {
    outline: 2px solid #1a3d44;
    outline-offset: 2px;
}
@media (max-width: 600px) {
    .nkb-glossary-card {
        padding: 24px;
    }
    .nkb-glossary-single-title {
        font-size: 26px;
    }
}