:root {
            --background: #f3f4f6;
            --surface: #ffffff;
            --text: #151515;
            --muted: #6b7280;
            --border: #e5e7eb;
            --brand: #c51f2f;
            --brand-dark: #991b2a;
            --soft-red: #fff1f2;
            --footer: #111827;
            --content-width: 760px;
            --page-width: 1180px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--background);
            color: var(--text);
            font-family: "Inter", sans-serif;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
        }

        img {
            display: block;
            max-width: 100%;
        }

        /* Header */
/* Article header */

        .article-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
        }

        .article-header-inner {
            width: min(940px, calc(100% - 40px));
            margin: 0 auto;
            padding: 58px 0 44px;
        }

        /* Previous and next article navigation */

        .article-navigation {
            width: min(var(--page-width), calc(100% - 40px));
            margin: 0 auto 70px;
        }

        .article-navigation-inner {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 20px;
            padding-top: 42px;
            border-top: 1px solid var(--border);
        }

        .article-nav-card {
            min-width: 0;
        }

        .article-nav-card--next {
            text-align: right;
        }

        .article-nav-link {
            display: flex;
            min-height: 155px;
            padding: 24px;
            border: 1px solid var(--border);
            border-radius: 14px;
            background: var(--surface);
            color: inherit;
            text-decoration: none;
            transition:
                transform 0.2s ease,
                border-color 0.2s ease,
                box-shadow 0.2s ease;
        }

        .article-nav-link:hover {
            transform: translateY(-3px);
            border-color: #d1d5db;
            box-shadow: 0 14px 36px rgba(17, 24, 39, 0.09);
        }

        .article-nav-content {
            display: flex;
            width: 100%;
            flex-direction: column;
            justify-content: space-between;
            gap: 18px;
        }

        .article-nav-direction {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--brand);
            font-size: 11px;
            font-weight: 800;
            letter-spacing: 0.1em;
            text-transform: uppercase;
        }

        .article-nav-card--next .article-nav-direction {
            justify-content: flex-end;
        }

        .article-nav-title {
            display: -webkit-box;
            margin: 0;
            overflow: hidden;
            font-family: "Playfair Display", serif;
            font-size: 23px;
            line-height: 1.28;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 3;
        }

        .article-nav-meta {
            color: var(--muted);
            font-size: 12px;
        }

        .article-nav-empty {
            display: flex;
            min-height: 155px;
            align-items: center;
            justify-content: center;
            padding: 24px;
            border: 1px dashed #d1d5db;
            border-radius: 14px;
            color: #9ca3af;
            font-size: 13px;
}

        .category-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 22px;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            min-height: 29px;
            padding: 0 12px;
            border-radius: 999px;
            background: var(--soft-red);
            color: var(--brand-dark);
            font-size: 11px;
            font-weight: 800;
            letter-spacing: 0.09em;
            text-transform: uppercase;
        }

        .source-name {
            color: var(--muted);
            font-size: 13px;
            font-weight: 500;
        }

        h1 {
            max-width: 920px;
            margin: 0;
            font-family: "Playfair Display", serif;
            font-size: clamp(38px, 5.5vw, 67px);
            font-weight: 700;
            line-height: 1.06;
            letter-spacing: -0.035em;
        }

        .standfirst {
            max-width: 800px;
            margin: 24px 0 0;
            color: #4b5563;
            font-size: clamp(17px, 2vw, 21px);
            line-height: 1.65;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px 18px;
            margin-top: 28px;
            color: var(--muted);
            font-size: 13px;
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .meta-separator {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: #d1d5db;
        }

        /* Hero */

        .hero-wrap {
            width: min(var(--page-width), calc(100% - 40px));
            margin: 38px auto 0;
        }

        .hero-image {
            width: 100%;
            aspect-ratio: 16 / 8.5;
            object-fit: cover;
            border-radius: 18px;
            background: #e5e7eb;
            box-shadow: 0 18px 50px rgba(17, 24, 39, 0.12);
        }

        /* Article body */

        .article-layout {
            width: min(var(--page-width), calc(100% - 40px));
            margin: 0 auto;
            display: grid;
            grid-template-columns: minmax(0, var(--content-width)) 280px;
            justify-content: center;
            gap: 64px;
            padding: 62px 0 80px;
        }

        .article-content {
            min-width: 0;
        }

        .article-content p {
            margin: 0 0 25px;
            color: #252525;
            font-family: Georgia, "Times New Roman", serif;
            font-size: 20px;
            line-height: 1.85;
        }

        .article-content p:first-child::first-letter {
            float: left;
            margin: 7px 9px 0 0;
            color: var(--brand);
            font-family: "Playfair Display", serif;
            font-size: 62px;
            font-weight: 700;
            line-height: 0.78;
        }

        .article-divider {
            width: 64px;
            height: 3px;
            margin: 36px 0;
            border: 0;
            background: var(--brand);
        }

        .source-box {
            margin-top: 42px;
            padding: 26px;
            border: 1px solid var(--border);
            border-radius: 14px;
            background: var(--surface);
        }

        .source-box-label {
            margin-bottom: 8px;
            color: var(--brand);
            font-size: 11px;
            font-weight: 800;
            letter-spacing: 0.1em;
            text-transform: uppercase;
        }

        .source-box h2 {
            margin: 0 0 10px;
            font-family: "Playfair Display", serif;
            font-size: 25px;
        }

        .source-box p {
            margin: 0 0 20px;
            color: var(--muted);
            font-family: "Inter", sans-serif;
            font-size: 14px;
            line-height: 1.65;
        }

        .source-button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 46px;
            padding: 0 19px;
            border-radius: 8px;
            background: var(--brand);
            color: white;
            font-size: 14px;
            font-weight: 700;
            text-decoration: none;
            transition:
                background 0.2s ease,
                transform 0.2s ease;
        }

        .source-button:hover {
            background: var(--brand-dark);
            transform: translateY(-1px);
        }

        /* Sidebar */

        .article-sidebar {
            align-self: start;
            position: sticky;
            top: 98px;
        }

        .sidebar-card {
            padding: 25px;
            border: 1px solid var(--border);
            border-radius: 14px;
            background: var(--surface);
        }

        .sidebar-card + .sidebar-card {
            margin-top: 20px;
        }

        .sidebar-label {
            color: var(--brand);
            font-size: 11px;
            font-weight: 800;
            letter-spacing: 0.1em;
            text-transform: uppercase;
        }

        .sidebar-card h3 {
            margin: 10px 0 10px;
            font-family: "Playfair Display", serif;
            font-size: 24px;
            line-height: 1.2;
        }

        .sidebar-card p {
            margin: 0 0 17px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.6;
        }

        .newsletter-form {
            display: grid;
            gap: 10px;
        }

        .newsletter-form input {
            width: 100%;
            height: 44px;
            padding: 0 13px;
            border: 1px solid #d1d5db;
            border-radius: 7px;
            background: white;
            color: var(--text);
            font: inherit;
            font-size: 14px;
            outline: none;
        }

        .newsletter-form input:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(197, 31, 47, 0.1);
        }

        .newsletter-form button {
            height: 44px;
            border: 0;
            border-radius: 7px;
            background: var(--brand);
            color: white;
            font: inherit;
            font-size: 14px;
            font-weight: 700;
            cursor: pointer;
        }

        .newsletter-form button:hover {
            background: var(--brand-dark);
        }

        .home-button {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text);
            font-size: 14px;
            font-weight: 700;
            text-decoration: none;
        }

        .home-button:hover {
            color: var(--brand);
        }

        /* Footer */
.footer-brand span {
            color: #f05261;
        }
/* Related articles */

        .related-section {
            padding: 0 0 86px;
        }

        .related-inner {
            width: min(var(--page-width), calc(100% - 40px));
            margin: 0 auto;
        }

        .related-heading-row {
            display: flex;
            align-items: end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 26px;
            padding-top: 42px;
            border-top: 1px solid var(--border);
        }

        .related-kicker {
            margin-bottom: 7px;
            color: var(--brand);
            font-size: 11px;
            font-weight: 800;
            letter-spacing: 0.1em;
            text-transform: uppercase;
        }

        .related-title {
            margin: 0;
            font-family: "Playfair Display", serif;
            font-size: clamp(30px, 4vw, 42px);
            line-height: 1.15;
        }

        .related-view-all {
            color: var(--brand);
            font-size: 14px;
            font-weight: 700;
            text-decoration: none;
            white-space: nowrap;
        }

        .related-view-all:hover {
            color: var(--brand-dark);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 24px;
        }

        .related-card {
            overflow: hidden;
            border: 1px solid var(--border);
            border-radius: 14px;
            background: var(--surface);
            transition:
                transform 0.2s ease,
                box-shadow 0.2s ease;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(17, 24, 39, 0.1);
        }

        .related-card-link {
            display: block;
            color: inherit;
            text-decoration: none;
        }

        .related-card-image {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: #e5e7eb;
        }

        .related-card-content {
            padding: 20px;
        }

        .related-card-category {
            margin-bottom: 10px;
            color: var(--brand);
            font-size: 10px;
            font-weight: 800;
            letter-spacing: 0.09em;
            text-transform: uppercase;
        }

        .related-card-title {
            margin: 0;
            font-family: "Playfair Display", serif;
            font-size: 22px;
            line-height: 1.25;
        }

        .related-card-teaser {
            display: -webkit-box;
            margin: 13px 0 0;
            overflow: hidden;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.6;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 3;
        }

        .related-card-meta {
            margin-top: 16px;
            color: #9ca3af;
            font-size: 12px;
        }


        /* Responsive */

        @media (max-width: 960px) {
            .article-layout {
                grid-template-columns: minmax(0, var(--content-width));
                gap: 45px;
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 20px;
            }

            .sidebar-card + .sidebar-card {
                margin-top: 0;
            }

            .related-section {
                padding-bottom: 60px;
            }

            .related-heading-row {
                align-items: flex-start;
                flex-direction: column;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .related-card-title {
                font-size: 24px;
}
        }

        @media (max-width: 720px) {
.header-nav a:not(.back-link) {
                display: none;
            }

            .article-header-inner {
                padding: 38px 0 32px;
            }

            h1 {
                font-size: clamp(36px, 11vw, 50px);
            }

            .standfirst {
                font-size: 17px;
            }

            .hero-wrap {
                width: 100%;
                margin-top: 0;
            }

            .hero-image {
                aspect-ratio: 4 / 3;
                border-radius: 0;
                box-shadow: none;
            }

            .article-layout {
                width: min(100% - 32px, var(--content-width));
                padding: 42px 0 60px;
            }

            .article-content p {
                font-size: 18px;
                line-height: 1.8;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }
}
/* ==================================================
   AIRCRAFT PROFILE
================================================== */

.aircraft-profile-card {
    overflow: hidden;
    border-top: 4px solid var(--brand, #b51f24);
}

.aircraft-profile-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.aircraft-profile-heading h3 {
    margin-bottom: 0;
}

.aircraft-profile-icon {
    display: grid;
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    place-items: center;
    border-radius: 50%;
    background: #f7e8e9;
    color: var(--brand, #b51f24);
    font-size: 19px;
    transform: rotate(-12deg);
}

.aircraft-profile-description {
    margin-top: 17px !important;
}

.aircraft-profile-specs {
    margin: 22px 0 0;
    padding: 0;
}

.aircraft-profile-specs div {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(90px, auto);
    gap: 14px;
    padding: 11px 0;
    border-top: 1px solid var(--border, #e5e7eb);
}

.aircraft-profile-specs dt {
    color: var(--muted, #6b7280);
    font-size: 12px;
    line-height: 1.4;
}

.aircraft-profile-specs dd {
    margin: 0;
    color: var(--text, #151515);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.4;
    text-align: right;
}

.aircraft-profile-actions {
    display: grid;
    gap: 12px;
    margin-top: 21px;
}

.aircraft-profile-button {
    display: flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: 9px 14px;
    border-radius: 7px;
    background: var(--brand, #b51f24);
    color: #ffffff;
    font-size: 13px;
    font-weight: 700;
    line-height: 1.35;
    text-align: center;
    text-decoration: none;
}

.aircraft-profile-button:hover {
    background: var(--brand-dark, #991b2a);
}

.aircraft-profile-source {
    color: var(--muted, #6b7280);
    font-size: 12px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
}

.aircraft-profile-source:hover {
    color: var(--brand, #b51f24);
}

.aircraft-related {
    margin-top: 23px;
    padding-top: 19px;
    border-top: 1px solid var(--border, #e5e7eb);
}

.aircraft-related-title {
    margin-bottom: 10px;
    color: var(--text, #151515);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.aircraft-related-link {
    display: block;
    padding: 10px 0;
    border-top: 1px solid var(--border, #e5e7eb);
    color: var(--text, #151515);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.35;
    text-decoration: none;
}

.aircraft-related-link:hover {
    color: var(--brand, #b51f24);
}

.aircraft-related-title + .aircraft-related-link {
    border-top: 0;
}