/* ── Learning hub (/learn/) ──────────────────────────────────────
   Article pages build on the .kt-page / .kt-page-inner layout in header.css. */

.kt-learn .kt-page-inner {
    max-width: 880px;
}

/* Breadcrumb */
.kt-crumbs {
    font-size: 13px;
    color: #6c757d;
    margin: 0 0 18px;
}
.kt-crumbs ol {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.kt-crumbs li + li::before {
    content: "\203A";
    margin-right: 6px;
    color: #adb5bd;
}
.kt-page-inner .kt-crumbs a {
    font-weight: 500;
    color: #3652c9;
}

.kt-learn-lede {
    font-size: 17px !important;
    line-height: 1.7 !important;
    color: #343a40 !important;
    margin: 0 0 22px;
}

.kt-page-inner h3 {
    font-size: 16px;
    font-weight: 700;
    color: #1a1a2e;
    margin: 22px 0 8px;
}
.kt-page-inner ol {
    padding-left: 22px;
    margin: 0 0 12px;
}
.kt-page-inner h2 {
    scroll-margin-top: 90px;
}

/* On this page */
.kt-toc {
    background: #f6f8fb;
    border: 1px solid #e9edf4;
    border-radius: 12px;
    padding: 14px 18px;
    margin: 0 0 26px;
}
.kt-toc strong {
    display: block;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: #636b74;
    margin-bottom: 6px;
}
.kt-toc ol {
    margin: 0;
    columns: 2;
    column-gap: 28px;
}
.kt-page-inner .kt-toc li {
    font-size: 14px;
    line-height: 1.8;
}

/* ISCN strings */
.kt-iscn {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.92em;
    background: #eef2ff;
    color: #2c3e9e;
    border-radius: 6px;
    padding: 1px 6px;
    white-space: nowrap;
}
.kt-iscn-hero {
    display: inline-block;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 22px;
    font-weight: 700;
    background: #eef2ff;
    color: #2c3e9e;
    border: 1px solid #c7d2fe;
    border-radius: 10px;
    padding: 8px 16px;
    margin: 4px 0 20px;
    overflow-wrap: anywhere;
}

/* Tables */
.kt-table-wrap {
    overflow-x: auto;
    margin: 6px 0 18px;
    border: 1px solid #e9edf4;
    border-radius: 12px;
}
.kt-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    line-height: 1.6;
    color: #495057;
}
.kt-table th,
.kt-table td {
    text-align: left;
    vertical-align: top;
    padding: 10px 14px;
    border-bottom: 1px solid #e9edf4;
}
.kt-table th {
    background: #f6f8fb;
    color: #1a1a2e;
    font-weight: 700;
    white-space: nowrap;
}
.kt-table tr:last-child td {
    border-bottom: 0;
}
.kt-table td:first-child {
    font-weight: 600;
    color: #1a1a2e;
}

/* Callouts */
.kt-callout {
    background: #eef2ff;
    border: 1px solid #c7d2fe;
    border-radius: 12px;
    padding: 14px 18px;
    margin: 16px 0 20px;
}
.kt-page-inner .kt-callout p {
    margin: 0;
    color: #2b3473;
}
.kt-callout-warn {
    background: #fff8e1;
    border-color: #f6d589;
}
.kt-page-inner .kt-callout-warn p {
    color: #6b4a06;
}

/* Figures */
.kt-figure {
    margin: 18px 0 22px;
}
.kt-figure img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 12px;
    border: 1px solid #e9edf4;
}
.kt-figure figcaption {
    font-size: 13px;
    color: #6c757d;
    margin-top: 8px;
}

/* Card grids (hub, related pages) */
.kt-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
    margin: 10px 0 24px;
}
.kt-page-inner a.kt-card {
    display: block;
    border: 1px solid #e3e8f2;
    border-radius: 12px;
    padding: 16px 18px;
    background: #fff;
    color: inherit;
    font-weight: 400;
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.kt-page-inner a.kt-card:hover {
    text-decoration: none;
    border-color: #a5b4fc;
    box-shadow: 0 6px 18px rgba(65, 84, 241, 0.12);
    transform: translateY(-1px);
}
.kt-card-kicker {
    display: block;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 13px;
    font-weight: 700;
    color: #3652c9;
    margin-bottom: 4px;
}
.kt-card-title {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 4px;
}
.kt-card-text {
    display: block;
    font-size: 14px;
    line-height: 1.6;
    color: #6c757d;
}

/* Practice call to action */
.kt-cta {
    background:
        radial-gradient(circle at top right, rgba(97, 122, 255, 0.28), transparent 40%),
        linear-gradient(160deg, #0b1331 0%, #101a42 55%, #172459 100%);
    border-radius: 16px;
    padding: 26px 28px;
    margin: 30px 0 24px;
}
.kt-page-inner .kt-cta h2 {
    color: #fff;
    margin: 0 0 8px;
}
.kt-page-inner .kt-cta p {
    color: #c9d1f5;
    margin: 0 0 16px;
}
.kt-page-inner a.kt-cta-btn {
    display: inline-block;
    background: linear-gradient(135deg, #4154f1, #6f7ff5);
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    border-radius: 10px;
    padding: 11px 22px;
    box-shadow: 0 6px 20px rgba(65, 84, 241, 0.35);
    transition: transform 0.15s, box-shadow 0.15s;
}
.kt-page-inner a.kt-cta-btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(65, 84, 241, 0.45);
}
.kt-cta-note {
    display: inline-block;
    margin-left: 12px;
    font-size: 13px;
    color: #9aa6d8;
}

.kt-page-inner .kt-disclaimer {
    font-size: 13px;
    line-height: 1.6;
    color: #636b74;
    border-top: 1px solid #e9edf4;
    padding-top: 14px;
    margin-top: 26px;
}

@media (max-width: 576px) {
    .kt-toc ol {
        columns: 1;
    }
    .kt-iscn-hero {
        font-size: 18px;
    }
    .kt-cta {
        padding: 22px 20px;
    }
    .kt-cta-note {
        display: block;
        margin: 10px 0 0;
    }
}