:root {
    --bg: #f4efe6;
    --surface: #fffdf8;
    --surface-2: #fff7ec;
    --ink: #1f2a35;
    --muted: #5a6672;
    --brand: #b55223;
    --brand-2: #007a7a;
    --line: #dfd5c8;
    --ok: #237a4f;
    --warn: #9a5d00;
    --code: #13202c;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    color: var(--ink);
    background: radial-gradient(circle at top right, #fff7ec 0%, #f4efe6 45%, #efe5d6 100%);
    font-family: "IBM Plex Sans", "Segoe UI", Tahoma, sans-serif;
    line-height: 1.55;
}

a {
    color: var(--brand);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.kb-shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.kb-topbar {
    background: linear-gradient(135deg, #1f2a35, #2f3f4d);
    color: #fff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.14);
}

.kb-brand-row {
    display: flex;
    gap: 18px;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.kb-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: "Bitter", Georgia, serif;
    font-size: 1.55rem;
    color: #fff;
}

.kb-logo-badge {
    width: 30px;
    height: 30px;
    border-radius: 7px;
    background: linear-gradient(160deg, #f18f43, #b55223);
    display: inline-block;
}

.kb-tagline {
    margin: 10px 0 0;
    color: #d6dee5;
}

.kb-nav {
    margin-top: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.kb-nav a {
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-weight: 600;
}

.kb-nav a.is-active {
    background: linear-gradient(160deg, #f18f43, #b55223);
}

.kb-layout {
    margin-top: 18px;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 18px;
}

.kb-side,
.kb-main {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 16px;
}

.kb-side h3,
.kb-main h2 {
    font-family: "Bitter", Georgia, serif;
    margin: 0 0 10px;
}

.kb-kicker {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--brand-2);
    margin-bottom: 8px;
}

.kb-search {
    width: 100%;
    border: 1px solid #c9bba8;
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.kb-list {
    margin: 0;
    padding-left: 18px;
}

.kb-list li {
    margin: 8px 0;
    color: var(--muted);
}

.kb-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 14px;
}

.kb-card {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 14px;
    background: var(--surface-2);
}

.kb-card h3,
.kb-card h4 {
    margin: 0 0 6px;
    font-family: "Bitter", Georgia, serif;
}

.kb-card p {
    margin: 0;
    color: var(--muted);
}

.kb-section {
    margin-top: 18px;
}

.kb-note {
    border-left: 4px solid var(--brand-2);
    background: #ecfbfb;
    padding: 10px 12px;
    color: #275c5c;
    border-radius: 8px;
    margin: 10px 0;
}

.kb-warn {
    border-left-color: var(--warn);
    background: #fff6e8;
    color: #8f5a00;
}

.kb-ok {
    border-left-color: var(--ok);
    background: #eaf9f0;
    color: #1f5f3f;
}

pre {
    margin: 0;
    padding: 12px;
    background: var(--code);
    color: #d8e3ee;
    border-radius: 8px;
    overflow: auto;
    font-family: "IBM Plex Mono", Consolas, monospace;
    font-size: 0.88rem;
}

code {
    font-family: "IBM Plex Mono", Consolas, monospace;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 8px;
    font-size: 0.95rem;
}

th,
td {
    border: 1px solid var(--line);
    padding: 8px 10px;
    text-align: left;
}

th {
    background: #f4ecde;
}

.kb-footer {
    margin-top: 18px;
    text-align: center;
    color: var(--muted);
    padding: 16px;
}

.kb-hero {
    background: linear-gradient(160deg, #fff6ea, #ffe7ce);
    border: 1px solid #efcfaa;
    border-radius: 12px;
    padding: 16px;
}

.kb-hero h1 {
    margin: 0 0 8px;
    font-family: "Bitter", Georgia, serif;
}

.kb-pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.kb-pill {
    border: 1px solid #dfc29e;
    border-radius: 999px;
    padding: 5px 10px;
    background: #fff8ee;
    color: #8f4e21;
    font-size: 0.85rem;
    font-weight: 600;
}

.kb-hidden {
    display: none !important;
}

.kb-support-banner {
    background: linear-gradient(135deg, #007a7a 0%, #00a89d 100%);
    color: #fff;
    border-radius: 12px;
    padding: 20px 22px;
    margin-top: 18px;
    position: relative;
    overflow: hidden;
}

.kb-support-banner::before {
    content: '';
    position: absolute;
    top: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255,255,255,.08);
    pointer-events: none;
}

.kb-support-banner h3 {
    font-family: "Bitter", Georgia, serif;
    margin: 0 0 8px;
    font-size: 1.15rem;
    color: #fff;
}

.kb-support-banner p {
    margin: 0 0 10px;
    color: #d4f5f0;
    line-height: 1.6;
}

.kb-support-banner a {
    color: #fff;
    text-decoration: underline;
    font-weight: 600;
}

.kb-support-banner a:hover {
    color: #ffe7ce;
}

.kb-support-banner .kb-support-btn {
    display: inline-block;
    background: rgba(255,255,255,.18);
    border: 1px solid rgba(255,255,255,.35);
    color: #fff;
    padding: 8px 18px;
    border-radius: 999px;
    font-weight: 600;
    font-size: .92rem;
    text-decoration: none;
    margin-top: 6px;
    transition: background .2s;
}

.kb-support-banner .kb-support-btn:hover {
    background: rgba(255,255,255,.3);
    text-decoration: none;
}

.kb-nav .kb-nav-support {
    background: linear-gradient(160deg, #00a89d, #007a7a) !important;
}

@media (max-width: 980px) {
    .kb-layout {
        grid-template-columns: 1fr;
    }
}