/**
 * Knowledge Centre — additive styles.
 * Loaded only on Knowledge pages. Reuses the global design tokens from
 * style.css (--bg, --surface, --card, --cyan, --border, --radius, etc.).
 * Does not override any existing selector.
 */

/* ---- Hero + search ------------------------------------------------------ */
.kb-hero h1 { max-width: 20ch; }
.kb-search {
    position: relative;
    display: flex;
    gap: 0.5rem;
    max-width: 640px;
    margin: 2rem 0 1rem;
}
.kb-search-icon {
    position: absolute;
    left: 1.1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}
.kb-search-input {
    flex: 1;
    padding: 0.9rem 1rem 0.9rem 2.8rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 1rem;
}
.kb-search-input:focus { outline: none; border-color: var(--cyan); }
.kb-search-results {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
    max-height: 70vh;
    overflow-y: auto;
    z-index: 60;
    text-align: left;
}
.kb-sr-group { padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
.kb-sr-group:last-child { border-bottom: 0; }
.kb-sr-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 0.4rem 1.1rem;
}
.kb-sr-item {
    display: block;
    padding: 0.6rem 1.1rem;
    color: var(--text);
    text-decoration: none;
    border-left: 2px solid transparent;
}
.kb-sr-item:hover, .kb-sr-item:focus { background: rgba(34, 211, 238, 0.08); border-left-color: var(--cyan); }
.kb-sr-cat { display: block; font-size: 0.7rem; color: var(--cyan); text-transform: uppercase; letter-spacing: 0.05em; }
.kb-sr-title { display: block; font-weight: 600; }
.kb-sr-blurb { display: block; font-size: 0.85rem; color: var(--text-muted); }
.kb-sr-empty { padding: 1rem 1.1rem; color: var(--text-muted); }

.kb-hero-topics { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; color: var(--text-muted); font-size: 0.9rem; }
.kb-hero-topics a {
    color: var(--cyan);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.25rem 0.8rem;
    text-decoration: none;
}
.kb-hero-topics a:hover { border-color: var(--cyan); }

/* ---- Section headings --------------------------------------------------- */
.kb-section-head { margin-bottom: 1.75rem; }
.kb-section-head p { color: var(--text-muted); margin: 0.4rem 0 0; }
.kb-section-heading { font-size: 1.6rem; margin: 0; }
.kb-section-alt { background: var(--surface); }

/* ---- Article & category cards ------------------------------------------- */
.kb-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}
.kb-card {
    display: flex;
    flex-direction: column;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: transform 0.15s ease, border-color 0.15s ease;
}
.kb-card:hover { transform: translateY(-3px); border-color: var(--cyan); }
.kb-card-cat { font-size: 0.78rem; color: var(--cyan); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.6rem; }
.kb-card-title { font-size: 1.15rem; margin: 0 0 0.5rem; }
.kb-card-blurb { color: var(--text-muted); font-size: 0.92rem; margin: 0 0 1rem; flex: 1; }
.kb-card-meta { display: flex; gap: 1rem; font-size: 0.82rem; color: var(--text-muted); }

.kb-cat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 1.1rem;
}
.kb-cat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    display: block;
    transition: transform 0.15s ease, border-color 0.15s ease;
}
.kb-cat-card:hover { transform: translateY(-3px); border-color: var(--cyan); }
.kb-cat-icon {
    width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.18), rgba(59, 130, 246, 0.12));
    color: var(--cyan);
    margin-bottom: 0.9rem;
}
.kb-cat-card h3 { margin: 0 0 0.4rem; font-size: 1.1rem; }
.kb-cat-card p { color: var(--text-muted); font-size: 0.88rem; margin: 0 0 0.8rem; }
.kb-cat-count { font-size: 0.78rem; color: var(--cyan); }

/* ---- Two-column recent/popular ------------------------------------------ */
.kb-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.kb-list-links { list-style: none; margin: 0; padding: 0; }
.kb-list-links li { border-bottom: 1px solid var(--border); }
.kb-list-links a {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.85rem 0; color: var(--text); text-decoration: none;
}
.kb-list-links a:hover { color: var(--cyan); }
.kb-list-links a span { flex: 1; }
.kb-list-links a time { color: var(--text-muted); font-size: 0.8rem; }
.kb-list-links i { color: var(--cyan); width: 1.1rem; text-align: center; }

/* ---- Breadcrumbs -------------------------------------------------------- */
.kb-breadcrumbs { margin-bottom: 1rem; }
.kb-breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; padding: 0; margin: 0; font-size: 0.85rem; }
.kb-breadcrumbs a { color: var(--text-muted); text-decoration: none; }
.kb-breadcrumbs a:hover { color: var(--cyan); }
.kb-breadcrumbs i { color: var(--text-muted); font-size: 0.65rem; margin-left: 0.5rem; }
.kb-breadcrumbs span[aria-current] { color: var(--text); }

/* ---- Article layout ----------------------------------------------------- */
.kb-article-subtitle { color: var(--text-muted); font-size: 1.15rem; max-width: 60ch; }
.kb-article-meta { display: flex; flex-wrap: wrap; gap: 1.25rem; color: var(--text-muted); font-size: 0.88rem; margin-top: 1rem; }
.kb-article-meta i { color: var(--cyan); }

.kb-article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 2.5rem; align-items: start; }
.kb-article { min-width: 0; }

.kb-quick-answer {
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.12), rgba(59, 130, 246, 0.06));
    border: 1px solid rgba(34, 211, 238, 0.3);
    border-radius: var(--radius);
    padding: 1.4rem 1.6rem;
    margin-bottom: 1.75rem;
}
.kb-quick-answer-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--cyan); margin-bottom: 0.5rem; }
.kb-quick-answer p { margin: 0; font-size: 1.05rem; }
.kb-lead { font-size: 1.1rem; color: #cbd5e1; }

.kb-steps { counter-reset: step; list-style: none; padding: 0; }
.kb-steps li {
    position: relative; padding: 0 0 1rem 2.75rem; margin: 0; counter-increment: step;
}
.kb-steps li::before {
    content: counter(step);
    position: absolute; left: 0; top: 0;
    width: 1.9rem; height: 1.9rem;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--cyan), #3b82f6);
    color: #04121a; font-weight: 700; border-radius: 50%;
    font-size: 0.9rem;
}
.kb-list { list-style: none; padding: 0; }
.kb-list li { position: relative; padding: 0.35rem 0 0.35rem 1.9rem; }
.kb-list li::before { position: absolute; left: 0; top: 0.4rem; font-family: "Font Awesome 6 Free"; font-weight: 900; }
.kb-list-good li::before { content: "\f00c"; color: var(--green); }
.kb-list-bad li::before { content: "\f071"; color: var(--amber); }

.kb-cta { margin-top: 2.5rem; }

/* ---- Scan box ----------------------------------------------------------- */
.kb-scan-box {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    margin: 2rem 0;
}
.kb-scan-box-head { display: flex; gap: 1rem; align-items: center; margin-bottom: 1.25rem; }
.kb-scan-box-head h2 { margin: 0 0 0.2rem; font-size: 1.25rem; }
.kb-scan-box-head p { margin: 0; color: var(--text-muted); font-size: 0.92rem; }
.kb-scan-input-row { display: flex; gap: 0.6rem; margin-top: 0.4rem; }
.kb-scan-input-row .form-input { flex: 1; }
@media (max-width: 560px) { .kb-scan-input-row { flex-direction: column; } }

.kb-scan-focus {
    display: flex; gap: 1rem; align-items: flex-start;
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    border: 1px solid var(--border);
}
.kb-scan-focus i { font-size: 1.4rem; margin-top: 0.15rem; }
.kb-scan-focus p { margin: 0.35rem 0 0.8rem; color: var(--text-muted); }
.kb-scan-focus--issue { border-color: rgba(245, 158, 11, 0.4); background: rgba(245, 158, 11, 0.08); }
.kb-scan-focus--issue i { color: var(--amber); }
.kb-scan-focus--ok { border-color: rgba(16, 185, 129, 0.4); background: rgba(16, 185, 129, 0.08); }
.kb-scan-focus--ok i { color: var(--green); }
.kb-finding-highlight {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.35);
    border-radius: 0.75rem;
    padding: 0.75rem;
    margin: 0.4rem 0;
}

/* ---- Sidebar ------------------------------------------------------------ */
.kb-sidebar { display: flex; flex-direction: column; gap: 1.25rem; position: sticky; top: 90px; }
.kb-sidebar-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem 1.35rem; }
.kb-sidebar-card h3 { margin: 0 0 0.9rem; font-size: 1rem; }
.kb-sidebar-note { color: var(--text-muted); font-size: 0.82rem; margin: -0.5rem 0 0.8rem; }
.kb-meta-list { list-style: none; padding: 0; margin: 0; }
.kb-meta-list li { display: flex; justify-content: space-between; gap: 1rem; padding: 0.5rem 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.kb-meta-list li:last-child { border-bottom: 0; }
.kb-meta-list span { color: var(--text-muted); }
.kb-meta-list a { color: var(--cyan); text-decoration: none; }
.kb-check-list { list-style: none; padding: 0; margin: 0 0 1rem; }
.kb-check-list li { display: flex; gap: 0.6rem; align-items: flex-start; padding: 0.4rem 0; font-size: 0.9rem; }
.kb-check-list i { color: var(--cyan); font-size: 0.55rem; margin-top: 0.45rem; }
.kb-check-list small { display: block; color: var(--text-muted); font-size: 0.75rem; }
.kb-glossary-mini dt { font-weight: 600; font-size: 0.9rem; margin-top: 0.6rem; }
.kb-glossary-mini dd { margin: 0.1rem 0 0; color: var(--text-muted); font-size: 0.82rem; }
.kb-sidebar-link { display: inline-block; margin-top: 0.8rem; color: var(--cyan); text-decoration: none; font-size: 0.88rem; }
.kb-further { list-style: none; padding: 0; margin: 0; }
.kb-further li { padding: 0.35rem 0; }
.kb-further a { color: var(--cyan); text-decoration: none; font-size: 0.9rem; }

.kb-related-wrap { margin-top: 3rem; }

/* ---- Glossary page ------------------------------------------------------ */
.kb-glossary-index { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1.25rem; }
.kb-glossary-index a {
    width: 2rem; height: 2rem; display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border); border-radius: 0.5rem; color: var(--cyan); text-decoration: none; font-size: 0.85rem;
}
.kb-glossary-index a:hover { border-color: var(--cyan); }
.kb-glossary-group { margin-bottom: 2rem; }
.kb-glossary-letter { color: var(--cyan); border-bottom: 1px solid var(--border); padding-bottom: 0.4rem; }
.kb-glossary-list { margin: 0; }
.kb-glossary-entry { padding: 1rem 0; border-bottom: 1px solid var(--border); }
.kb-glossary-entry dt { font-weight: 700; font-size: 1.05rem; margin-bottom: 0.3rem; }
.kb-glossary-entry dd { margin: 0; color: var(--text-muted); }
.kb-glossary-entry dd a, .kb-glossary-link { display: inline-block; margin-top: 0.4rem; color: var(--cyan); text-decoration: none; font-size: 0.88rem; }

/* ---- Platform-specific fixes (Fix Guides) ------------------------------- */
.kb-platform-guides { display: grid; gap: 1rem; margin: 1rem 0 1.5rem; }
.kb-platform-guide {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    border-left: 3px solid var(--cyan);
    padding: 1rem 1.25rem;
}
.kb-platform-guide h3 { margin: 0 0 0.5rem; font-size: 1.05rem; }
.kb-platform-guide .kb-steps { margin-bottom: 0; }

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 900px) {
    .kb-article-layout { grid-template-columns: 1fr; }
    .kb-sidebar { position: static; }
    .kb-two-col { grid-template-columns: 1fr; gap: 1.5rem; }
}