.learn-body {
    background:
        radial-gradient(circle at 15% 8%, rgba(255, 136, 0, 0.08), transparent 34%),
        linear-gradient(180deg, #090a10 0%, #0e0e14 42%, #08080c 100%);
}

.learn-shell {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 132px 0 80px;
}

.learn-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 42px;
    align-items: end;
    padding: 42px 0 54px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.learn-label,
.article-kicker,
.learn-card-meta {
    color: #ffb15c;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.learn-hero h1,
.article-header h1 {
    margin: 14px 0 18px;
    color: #fff;
    font-size: clamp(2.2rem, 5vw, 4.6rem);
    line-height: 1.04;
    font-weight: 900;
    letter-spacing: 0;
    max-width: 920px;
}

.learn-hero p,
.article-header p {
    max-width: 760px;
    color: #b8c3d6;
    font-size: 1.06rem;
    line-height: 1.75;
}

.learn-hero-panel {
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(16, 18, 27, 0.72);
    padding: 24px;
    box-shadow: 0 26px 60px rgba(0, 0, 0, 0.28);
}

.learn-hero-panel span {
    color: #94a3b8;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
}

.learn-hero-panel strong {
    display: block;
    margin: 10px 0;
    color: #fff;
    font-size: 3.4rem;
    line-height: 1;
    font-family: 'JetBrains Mono', monospace;
}

.learn-hero-panel p {
    font-size: 0.94rem;
    line-height: 1.6;
}

.learn-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    padding: 34px 0 0;
}

.learn-card {
    display: block;
    min-height: 240px;
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 8px;
    background: rgba(15, 17, 25, 0.74);
    color: inherit;
    text-decoration: none;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.learn-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 136, 0, 0.42);
    background: rgba(23, 23, 32, 0.86);
}

.learn-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.learn-card h2 {
    margin: 14px 0 12px;
    color: #fff;
    font-size: 1.45rem;
    line-height: 1.2;
    letter-spacing: 0;
}

.learn-card p {
    color: #a9b5c8;
    line-height: 1.65;
    margin-bottom: 22px;
}

.learn-card span {
    color: #ff9d32;
    font-size: 0.84rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.learn-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 28px;
    color: #6f7b91;
    font-size: 0.9rem;
}

.learn-breadcrumb a {
    color: #ff9d32;
    text-decoration: none;
}

.article-header-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 34px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.article-header {
    padding: 34px 0 46px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.learn-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 18px;
    border-radius: 8px;
    font-weight: 800;
    text-decoration: none;
}

.learn-btn-primary {
    color: #111;
    background: #ff9d32;
}

.learn-btn-primary:hover {
    background: #ffb15c;
}

.learn-btn-secondary {
    color: #e5edf8;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.04);
}

.article-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 760px);
    gap: 54px;
    align-items: start;
    padding-top: 42px;
}

.article-toc {
    position: sticky;
    top: 100px;
    display: grid;
    gap: 8px;
}

.article-toc a {
    color: #8f9bb1;
    text-decoration: none;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
    padding: 8px 0 8px 12px;
    font-size: 0.92rem;
}

.article-toc a:hover {
    color: #ffb15c;
    border-left-color: #ff9d32;
}

.article-content {
    color: #d6deeb;
    font-size: 1.04rem;
    line-height: 1.78;
}

.article-content section {
    scroll-margin-top: 100px;
    margin-bottom: 44px;
}

.article-content h2 {
    margin: 0 0 16px;
    color: #fff;
    font-size: 1.72rem;
    line-height: 1.2;
    letter-spacing: 0;
}

.article-content p {
    margin: 0 0 18px;
}

.article-content strong {
    color: #fff;
}

.learn-callout {
    margin: 24px 0;
    padding: 18px 20px;
    border: 1px solid rgba(255, 136, 0, 0.35);
    border-radius: 8px;
    background: rgba(255, 136, 0, 0.09);
    color: #ffe3bf;
}

.learn-table {
    display: grid;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
}

.learn-table > div {
    display: grid;
    grid-template-columns: 0.78fr 1.22fr;
}

.learn-table > div:not(:last-child) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.learn-table span,
.learn-table strong {
    padding: 14px 16px;
}

.learn-table strong {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
}

.learn-table span:first-child {
    color: #fff;
    font-weight: 700;
}

.article-content ol {
    margin: 0 0 18px;
    padding-left: 24px;
}

.article-content li {
    margin-bottom: 10px;
}

.article-sources {
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.article-sources a {
    display: block;
    color: #ffb15c;
    text-decoration: none;
    margin-bottom: 10px;
}

.article-sources a:hover {
    text-decoration: underline;
}

@media (max-width: 900px) {
    .learn-shell {
        width: min(100% - 28px, 760px);
        padding-top: 112px;
    }

    .learn-hero {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .learn-list,
    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-toc {
        position: static;
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .article-toc a {
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 999px;
        padding: 8px 12px;
        background: rgba(255, 255, 255, 0.03);
    }
}

@media (max-width: 560px) {
    .learn-shell {
        width: min(100% - 22px, 520px);
        padding-bottom: 56px;
    }

    .learn-hero h1,
    .article-header h1 {
        font-size: 2.1rem;
    }

    .learn-hero-panel strong {
        font-size: 2.6rem;
    }

    .learn-table > div {
        grid-template-columns: 1fr;
    }

    .learn-table span,
    .learn-table strong {
        padding: 12px 14px;
    }

    .article-actions {
        display: grid;
    }
}