/* ===== Shared Long-Form Article Shell ===== */
:root {
    --space-xs: 0.75rem;
    --space-sm: 1.25rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 4rem;
    --space-xxl: 6rem;
}

.blog-page {
    flex: 1;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0 0 var(--space-xl);
    background: var(--primary-bg);
}

.blog-shell {
    background: var(--primary-bg);
    border: none;
    border-radius: 0;
    overflow: hidden;
    box-shadow: none;
}

/* ===== Article Hero ===== */
.blog-hero {
    padding: 3.5rem var(--space-md) 3rem;
    border-bottom: 1px solid #d8dde1;
}

.blog-hero__kicker {
    display: inline-block;
    margin: 0;
    padding: 0.35rem 0.8rem;
    border-radius: 999px;
    background: #dce8ec;
    color: #2f6f75;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 700;
    font-size: 0.9rem;
}

.blog-hero h1 {
    margin: var(--space-md) 0;
    color: var(--heading-color);
    font-size: clamp(1.9rem, 4vw, 3rem);
    line-height: 1.15;
    max-width: 18ch;
    text-wrap: balance;
}

.blog-hero__lede {
    margin: 0 0 var(--space-md);
    max-width: 66ch;
    color: var(--body-text);
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    line-height: 1.55;
}

.blog-hero__meta {
    margin: var(--space-sm) 0 0;
    color: var(--body-text);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

/* ===== Main Content And Sidebar ===== */
.blog-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--space-xl);
    padding: var(--space-xl) var(--space-md) var(--space-xl);
}

.blog-main {
    min-width: 0;
    max-width: 700px;
}

.blog-section {
    padding-top: var(--space-md);
    border-top: 3px solid #58a3ad;
    margin-top: var(--space-xl);
}

.blog-section:first-child {
    margin-top: 0;
}

.blog-section h2 {
    margin: 0 0 var(--space-md);
    color: var(--heading-color);
    font-size: clamp(1.6rem, 2.6vw, 2.5rem);
    line-height: 1.2;
}

.blog-section h3 {
    margin: var(--space-md) 0 var(--space-xs);
    color: var(--heading-color);
    font-size: clamp(1.15rem, 1.8vw, 1.6rem);
    line-height: 1.3;
    position: relative;
    padding-left: 0.7rem;
}

.blog-section h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.2em;
    width: 4px;
    height: 1.2em;
    border-radius: 999px;
    background: #2f8790;
}

.blog-section p,
.blog-section li {
    color: var(--body-text);
    line-height: 1.72;
    font-size: 1.08rem;
}

.blog-section p {
    margin: 0 0 1.5rem;
}

.blog-section ul,
.blog-section ol {
    margin: var(--space-xs) 0 var(--space-sm);
    padding-left: 1.2rem;
}

.blog-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: var(--space-sm) 0 var(--space-md);
    border: 1px solid #d4dbe0;
    border-radius: 12px;
    overflow: hidden;
    background: #f8fafb;
}

.blog-table th,
.blog-table td {
    text-align: left;
    padding: 0.78rem 1rem;
    border-bottom: 1px solid #dbe2e7;
    vertical-align: top;
}

.blog-table th {
    background: #e2ebef;
    color: var(--heading-color);
    font-size: 1.03rem;
}

.blog-table tbody tr:last-child td {
    border-bottom: none;
}

.blog-table td:first-child {
    color: var(--accent);
    font-weight: 700;
    font-family: "SFMono-Regular", Consolas, Menlo, Monaco, monospace;
    white-space: nowrap;
}

.blog-code {
    margin: var(--space-sm) 0 var(--space-md);
    padding: var(--space-sm) var(--space-sm);
    border: 1px solid #d2dbe0;
    border-left: 4px solid #2f8790;
    border-radius: 10px;
    background: #e9f1f4;
    overflow-x: auto;
}

.blog-code code {
    font-family: "SFMono-Regular", Consolas, Menlo, Monaco, monospace;
    font-size: 0.93rem;
    line-height: 1.6;
    color: var(--body-text);
}

.blog-code--paths code span {
    display: block;
}

@media (max-width: 390px) {
    .blog-code--paths {
        overflow-x: hidden;
    }

    .blog-code--paths code {
        white-space: normal;
    }

    .blog-code--paths code span {
        overflow-wrap: anywhere;
    }
}

.blog-sidebar {
    position: sticky;
    top: 1rem;
    align-self: start;
    display: grid;
    gap: var(--space-md);
}

.sidebar-card {
    background: #eff2f4;
    border: 1px solid #d8dde1;
    border-radius: 14px;
    padding: var(--space-md);
}

.sidebar-card h2,
.sidebar-card h3 {
    margin: 0 0 0.65rem;
    color: var(--heading-color);
    line-height: 1.25;
}

.sidebar-toc ul,
.sidebar-steps ol {
    margin: 0;
    padding-left: 1.05rem;
}

.sidebar-toc li,
.sidebar-steps li {
    margin: 0.42rem 0;
    color: #2f3a46;
}

.sidebar-toc a,
.sidebar-steps a {
    color: #2f6f75;
    text-decoration: none;
    font-weight: 500;
}

.sidebar-toc a:hover,
.sidebar-toc a:focus-visible,
.sidebar-steps a:hover,
.sidebar-steps a:focus-visible {
    color: #2998a3;
    text-decoration: underline;
}

.sidebar-insight {
    border-left: 4px solid #2f8790;
}

.sidebar-insight p {
    margin: 0;
    color: #2f3a46;
    line-height: 1.6;
}

.blog-figure {
    margin: 1rem 0;
}

.blog-figure--narrow {
    max-width: 34rem;
}

.blog-figure-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.blog-figure-grid .blog-figure {
    margin: 0;
}

.blog-figure img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    border: 1px solid #d8dde1;
}

.blog-figure figcaption {
    margin-top: 0.45rem;
    color: #516071;
    font-size: 0.92rem;
}

/* ===== Responsive Layout ===== */
@media (max-width: 1050px) {
    .blog-layout {
        grid-template-columns: 1fr;
        grid-template-areas:
            "sidebar"
            "main";
    }

    .blog-main {
        grid-area: main;
        max-width: none;
    }

    .blog-sidebar {
        grid-area: sidebar;
        position: static;
        display: block;
    }

    .sidebar-toc {
        width: min(100%, 46rem);
        margin: 0 auto;
    }

    .sidebar-insight,
    .sidebar-steps {
        display: none;
    }
}

@media (max-width: 768px) {
    .blog-page {
        padding: 0 0 var(--space-lg);
    }

    .blog-hero,
    .blog-layout {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .blog-hero__meta {
        flex-wrap: wrap;
    }

    .blog-layout {
        display: flex;
        flex-direction: column;
        gap: var(--space-md);
    }

    .blog-sidebar {
        order: -1;
        display: flex;
        justify-content: center;
        width: 100%;
        gap: 0;
    }

    .sidebar-insight,
    .sidebar-steps {
        display: none;
    }

    .sidebar-toc {
        width: min(100%, 28rem);
        max-width: 28rem;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 0;
    }

    .sidebar-toc a,
    .sidebar-steps a {
        display: flex;
        min-height: 44px;
        align-items: center;
        padding-block: 0.6rem;
    }

    .blog-sidebar {
        position: static;
    }

    .sidebar-steps {
        grid-column: auto;
    }

    .blog-figure-grid {
        grid-template-columns: 1fr;
    }

    .blog-table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .blog-code {
        max-width: 100%;
    }

    .blog-section p,
    .blog-section li,
    .sidebar-card {
        overflow-wrap: anywhere;
    }
}

/* ===== Theme Variants ===== */
body.dark-mode .blog-shell {
    background: var(--primary-bg);
    border: none;
    box-shadow: none;
}

body.dark-mode .blog-page {
    background: var(--primary-bg);
}

body.dark-mode .blog-hero {
    background: #22282d;
    border-color: #37424c;
}

body.dark-mode .blog-hero h1,
body.dark-mode .blog-section h2,
body.dark-mode .blog-section h3,
body.dark-mode .sidebar-card h2,
body.dark-mode .sidebar-card h3,
body.dark-mode .blog-code code,
body.dark-mode .blog-table th {
    color: #e6ecef;
}

body.dark-mode .blog-hero__kicker {
    background: #30474b;
    color: #c9ecef;
}

body.dark-mode .blog-hero__lede,
body.dark-mode .blog-hero__meta,
body.dark-mode .blog-section p,
body.dark-mode .blog-section li,
body.dark-mode .sidebar-card p,
body.dark-mode .sidebar-card li {
    color: #cfd9de;
}

body.dark-mode .blog-table,
body.dark-mode .blog-table th,
body.dark-mode .blog-table td,
body.dark-mode .blog-code,
body.dark-mode .sidebar-card {
    border-color: #3a444d;
}

body.dark-mode .blog-table,
body.dark-mode .sidebar-card {
    background: #252b30;
}

body.dark-mode .blog-table th {
    background: #2e3940;
}

body.dark-mode .blog-code {
    background: #253338;
}

body.dark-mode .back-to-top {
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.35);
}

html.high-contrast .blog-shell,
html.high-contrast .blog-hero,
html.high-contrast .sidebar-card,
html.high-contrast .blog-table,
html.high-contrast .blog-code {
    background:
        linear-gradient(180deg, rgba(18, 31, 45, 0.98) 0%, rgba(20, 35, 51, 0.98) 100%) !important;
    border: 2px solid var(--border) !important;
}

html.high-contrast .back-to-top {
    background: var(--accent) !important;
    color: #fff !important;
    border: 2px solid var(--border) !important;
}