/* ── Knowledge Base — distinct doc-site layout within SCH theme ──────────── */

:root {
    --kb-sidebar-bg:   #050e1c;
    --kb-body-bg:      #0b1a2e;
    --kb-surface:      rgba(255,255,255,.025);
    --kb-border:       rgba(255,255,255,.07);
    --kb-accent:       #00d4aa;
    --kb-accent-dim:   rgba(0,212,170,.12);
    --kb-blue:         #638cff;
    --kb-amber:        #f59e0b;
    --kb-purple:       #a78bfa;
    --kb-green:        #34d399;
    --kb-text:         rgba(210,225,240,.78);
    --kb-text-strong:  #e4edf8;
    --kb-text-muted:   rgba(180,200,220,.42);
    --kb-sidebar-w:    264px;
    --kb-content-max:  820px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--kb-body-bg);
    color: var(--kb-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 15px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

/* ── Layout ─────────────────────────────────────────────────────────────── */

.kb-layout {
    display: flex;
    min-height: 100vh;
    padding-top: 40px; /* nav-auth.js bar */
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */

.kb-sidebar {
    width: var(--kb-sidebar-w);
    flex-shrink: 0;
    background: var(--kb-sidebar-bg);
    border-right: 1px solid var(--kb-border);
    position: fixed;
    top: 40px;
    bottom: 0;
    left: 0;
    overflow-y: auto;
    z-index: 10;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,.1) transparent;
}
.kb-sidebar::-webkit-scrollbar { width: 4px; }
.kb-sidebar::-webkit-scrollbar-track { background: transparent; }
.kb-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 2px; }

.kb-sidebar-inner { padding: 24px 0 48px; }

.kb-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 0 20px 20px;
    font-size: 13px;
    font-weight: 700;
    color: var(--kb-accent);
    border-bottom: 1px solid var(--kb-border);
    margin-bottom: 8px;
    letter-spacing: .02em;
    text-transform: uppercase;
}
.kb-sidebar-brand-icon {
    width: 26px; height: 26px;
    background: var(--kb-accent-dim);
    border: 1px solid rgba(0,212,170,.25);
    border-radius: 7px;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
}

/* Search */
.kb-search-wrap { padding: 12px 16px; }
.kb-search {
    width: 100%;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.09);
    border-radius: 8px;
    color: var(--kb-text-strong);
    font-family: inherit;
    font-size: 13px;
    padding: 7px 11px;
    outline: none;
    transition: border-color .2s;
}
.kb-search::placeholder { color: var(--kb-text-muted); }
.kb-search:focus { border-color: rgba(0,212,170,.4); }

/* Nav groups */
.kb-nav { padding: 4px 0; }

.kb-nav-group { margin-bottom: 2px; }

.kb-nav-group-label {
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--kb-text-muted);
    padding: 14px 20px 4px;
}

.kb-nav-link {
    display: block;
    padding: 5px 20px;
    font-size: 13.5px;
    font-weight: 450;
    color: rgba(200,220,235,.6);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: color .15s, border-color .15s, background .15s;
    line-height: 1.5;
}
.kb-nav-link:hover {
    color: var(--kb-text-strong);
    background: rgba(255,255,255,.03);
}
.kb-nav-link.active {
    color: var(--kb-accent);
    border-left-color: var(--kb-accent);
    background: rgba(0,212,170,.06);
    font-weight: 600;
}

/* ── Main ────────────────────────────────────────────────────────────────── */

.kb-main {
    flex: 1;
    margin-left: var(--kb-sidebar-w);
}

.kb-content {
    max-width: var(--kb-content-max);
    padding: 52px 60px 100px;
    margin: 0 auto;
}

/* ── Typography ──────────────────────────────────────────────────────────── */

.kb-hero {
    margin-bottom: 56px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--kb-border);
}
.kb-hero-eyebrow {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--kb-accent);
    margin-bottom: 10px;
}
.kb-hero h1 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--kb-text-strong);
    margin: 0 0 14px;
    line-height: 1.25;
}
.kb-hero-lead {
    font-size: 16px;
    color: rgba(210,225,240,.65);
    max-width: 620px;
    line-height: 1.7;
    margin: 0;
}

/* Section anchors */
.kb-section {
    margin-bottom: 64px;
    scroll-margin-top: 24px;
}
.kb-section-group {
    margin-bottom: 80px;
}
.kb-section-group-title {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .09em;
    text-transform: uppercase;
    color: var(--kb-text-muted);
    margin: 0 0 32px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--kb-border);
}

.kb-section h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--kb-text-strong);
    margin: 0 0 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.kb-section h3 {
    font-size: 1rem;
    font-weight: 650;
    color: var(--kb-text-strong);
    margin: 28px 0 10px;
}
.kb-section p { margin: 0 0 14px; }
.kb-section ul, .kb-section ol {
    margin: 0 0 14px;
    padding-left: 22px;
}
.kb-section li { margin-bottom: 5px; }
.kb-section a { color: var(--kb-accent); text-decoration: none; }
.kb-section a:hover { text-decoration: underline; }
.kb-section strong { color: var(--kb-text-strong); font-weight: 600; }

/* Framework tag badges */
.kb-tag {
    display: inline-flex;
    align-items: center;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .04em;
    padding: 2px 8px;
    border-radius: 5px;
    text-transform: uppercase;
    vertical-align: middle;
}
.kb-tag-ce      { background: rgba(0,212,170,.14);  color: #00d4aa; }
.kb-tag-caf     { background: rgba(99,140,255,.14); color: #638cff; }
.kb-tag-dora    { background: rgba(245,158,11,.14); color: #f59e0b; }
.kb-tag-iso     { background: rgba(52,211,153,.14); color: #34d399; }
.kb-tag-ai      { background: rgba(167,139,250,.14);color: #a78bfa; }
.kb-tag-cr      { background: rgba(0,184,212,.14);  color: #00b8d4; }
.kb-tag-soc     { background: rgba(0,180,216,.14);  color: #00b4d8; }
.kb-tag-pedd    { background: rgba(201,168,76,.14); color: #c9a84c; }
.kb-tag-crma    { background: rgba(236,72,153,.14); color: #ec4899; }
.kb-tag-free    { background: rgba(52,211,153,.14); color: #34d399; }
.kb-tag-paid    { background: rgba(245,158,11,.14); color: #f59e0b; }

/* Section icon */
.kb-section-icon {
    width: 28px; height: 28px;
    border-radius: 7px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

/* Call-out boxes */
.kb-callout {
    border-left: 3px solid;
    border-radius: 0 8px 8px 0;
    padding: 12px 16px;
    margin: 20px 0;
    font-size: 14px;
    line-height: 1.6;
}
.kb-callout-title {
    font-weight: 700;
    font-size: 12px;
    letter-spacing: .05em;
    text-transform: uppercase;
    margin-bottom: 4px;
}
.kb-callout-tip     { background: rgba(0,212,170,.06);  border-color: var(--kb-accent); }
.kb-callout-tip .kb-callout-title { color: var(--kb-accent); }
.kb-callout-info    { background: rgba(99,140,255,.06);  border-color: var(--kb-blue); }
.kb-callout-info .kb-callout-title { color: var(--kb-blue); }
.kb-callout-warn    { background: rgba(245,158,11,.06);  border-color: var(--kb-amber); }
.kb-callout-warn .kb-callout-title { color: var(--kb-amber); }
.kb-callout-access  { background: rgba(167,139,250,.06); border-color: var(--kb-purple); }
.kb-callout-access .kb-callout-title { color: var(--kb-purple); }

/* Step list */
.kb-steps { counter-reset: kb-step; list-style: none; padding: 0; margin: 16px 0; }
.kb-section .kb-steps { padding-left: 0; margin: 16px 0; list-style: none; } /* override .kb-section ol specificity */
.kb-steps li {
    position: relative;
    padding-left: 38px; /* 24px badge + 14px gap */
    margin-bottom: 16px;
    counter-increment: kb-step;
    line-height: 1.7;
}
.kb-steps li::before {
    content: counter(kb-step);
    position: absolute;
    left: 0;
    top: 2px;
    width: 24px; height: 24px;
    background: var(--kb-accent-dim);
    border: 1px solid rgba(0,212,170,.3);
    border-radius: 50%;
    color: var(--kb-accent);
    font-size: 12px;
    font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}

/* Summary cards (framework comparison) */
.kb-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
    margin: 20px 0;
}
.kb-card {
    background: var(--kb-surface);
    border: 1px solid var(--kb-border);
    border-radius: 10px;
    padding: 16px 18px;
}
.kb-card-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--kb-text-muted);
    margin-bottom: 6px;
}
.kb-card-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--kb-text-strong);
}

/* Inline code */
code {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.86em;
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 4px;
    padding: 1px 5px;
    color: var(--kb-accent);
}

/* ── Glossary ────────────────────────────────────────────────────────────── */

.kb-glossary-grid {
    display: grid;
    gap: 2px;
    margin-top: 16px;
}
.kb-gl-term {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 16px;
    padding: 11px 14px;
    border-radius: 8px;
    transition: background .12s;
    align-items: baseline;
}
.kb-gl-term:hover { background: rgba(255,255,255,.03); }
.kb-gl-name {
    font-weight: 650;
    font-size: 14px;
    color: var(--kb-text-strong);
}
.kb-gl-def {
    font-size: 13.5px;
    color: var(--kb-text);
    line-height: 1.6;
}

/* Alphabet divider */
.kb-gl-alpha {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--kb-accent);
    padding: 18px 14px 6px;
    border-bottom: 1px solid var(--kb-border);
    margin-bottom: 4px;
}

/* ── Search hide ─────────────────────────────────────────────────────────── */
.kb-hidden { display: none !important; }

/* ── Divider ─────────────────────────────────────────────────────────────── */
.kb-divider {
    height: 1px;
    background: var(--kb-border);
    margin: 0 0 56px;
}

/* ── Mobile ──────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .kb-sidebar { display: none; }
    .kb-main { margin-left: 0; }
    .kb-content { padding: 32px 24px 80px; }
    .kb-gl-term { grid-template-columns: 1fr; gap: 4px; }
}