.logo-icon {
            height: 40px !important;
        }
        .case-study-hero {
            padding: 60px 0;
            background-color: #f9fafb;
            background-image: url('../../images/logo%20transport1.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
        }

        .case-study-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.4);
            filter: saturate(0.6);
            pointer-events: none;
            z-index: 1;
        }

        .hero-video-container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 0 30px;
            aspect-ratio: 16 / 9;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 2;
        }

        .hero-video-container video {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-study-content {
            padding: 80px 0;
            background-color: white;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

        .case-study-text-section {
            max-width: 900px;
            margin: 0 auto 70px;
            padding: 0 30px;
        }

        .case-study-text-section h1,
        .case-study-text-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: #111827;
            margin-bottom: 30px;
            line-height: 1.4;
            text-align: center;
            font-family: 'Kallisto', sans-serif;
        }

        .case-study-text-section .case-study-lead {
            font-size: 18px;
            line-height: 1.7;
            color: #4b5563;
            text-align: center;
            max-width: 780px;
            margin: -10px auto 30px;
            font-weight: 500;
        }

        .case-study-text-section p {
            font-size: 16px;
            line-height: 1.8;
            color: #374151;
            margin-bottom: 18px;
        }

        .case-study-content h3,
        .result-heading {
            font-family: 'Kallisto', sans-serif;
        }

        .result-box {
            background-color: #f0f4ff;
            border-left: 4px solid #6366f1;
            padding: 15px 20px;
            border-radius: 4px;
            margin: 20px 0;
            font-style: italic;
        }

        .result-box strong {
            color: #6366f1;
        }

        .insight-list {
            margin-left: 20px;
            line-height: 1.8;
            list-style: none;
            padding: 0;
        }

        .insight-list li {
            margin-bottom: 12px;
        }

        /* ── Learned section redesign ── */
        .learned-section {
            margin-top: 50px;
            margin-bottom: 50px;
        }

        .learned-section h3 {
            font-family: 'Kallisto', sans-serif;
            font-size: 26px;
            font-weight: 700;
            color: #111827;
            text-align: center;
            margin-bottom: 32px;
        }

        .learned-quote-card {
            position: relative;
            background: linear-gradient(135deg, #6366f1, #818cf8);
            color: #fff;
            border-radius: 16px;
            padding: 36px 40px;
            margin-bottom: 36px;
            box-shadow: 0 8px 32px rgba(99, 102, 241, 0.25);
            overflow: hidden;
        }

        .learned-quote-card::before {
            content: '\201C';
            position: absolute;
            top: -10px;
            left: 18px;
            font-size: 120px;
            font-family: Georgia, serif;
            opacity: 0.15;
            line-height: 1;
        }

        .learned-quote-card .quote-main {
            font-family: 'Kallisto', sans-serif;
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .learned-quote-card .quote-sub {
            font-size: 15px;
            line-height: 1.7;
            opacity: 0.9;
            position: relative;
            z-index: 1;
        }

        .learned-insights-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 10px;
        }

        .learned-insight-card {
            background: #ffffff;
            border: 1px solid #e5e7eb;
            border-radius: 14px;
            padding: 28px 24px;
            position: relative;
            transition: box-shadow 0.3s ease, transform 0.3s ease, background 0.3s ease;
        }

        .learned-insight-card:hover {
            background: #fafbfc;
            box-shadow: 0 12px 32px rgba(99, 102, 241, 0.12);
            transform: translateY(-4px);
        }

        .learned-insight-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-size: 26px;
        }

        .learned-insight-icon.gold-bg {
            background: linear-gradient(135deg, #fef3c7, #fde68a);
        }

        .learned-insight-icon.blue-bg {
            background: linear-gradient(135deg, #dbeafe, #bfdbfe);
        }

        .learned-insight-card h4 {
            font-family: 'Kallisto', sans-serif;
            font-size: 18px;
            font-weight: 700;
            color: #111827;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .learned-insight-card p {
            font-size: 15px;
            line-height: 1.8;
            color: #4b5563;
            margin: 0;
        }

        .learned-insight-card strong {
            color: #1f2937;
            font-weight: 700;
        }

        .learned-highlight {
            display: inline-block;
            background: linear-gradient(120deg, #c7d2fe 0%, #e0e7ff 100%);
            padding: 1px 8px;
            border-radius: 5px;
            font-weight: 700;
            color: #3730a3;
        }

        .impact-grid {
            margin-top: 24px;
            display: grid;
            grid-template-columns: repeat(2, minmax(220px, 1fr));
            gap: 18px;
        }

        .impact-card {
            border: 1px solid #e5e7eb;
            border-radius: 12px;
            background: #f9fafb;
            padding: 20px;
            text-align: center;
        }

        .impact-label {
            font-size: 18px;
            color: #111827;
            margin-bottom: 8px;
            font-family: 'Kallisto', sans-serif;
        }

        .impact-value {
            font-size: 54px;
            line-height: 1;
            color: #4d7c0f;
            font-weight: 700;
        }

        .impact-description {
            font-size: 14px;
            color: #6b7280;
            margin-top: 8px;
        }

        .case-study-graph-section {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 30px;
        }

        .case-study-graph-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: #111827;
            margin-bottom: 14px;
            text-align: center;
            line-height: 1.4;
            font-family: 'Kallisto', sans-serif;
        }

        .graph-subtitle {
            text-align: center;
            color: #475569;
            margin-bottom: 28px;
        }

        .mdf {
            max-width: 1200px;
            margin: 40px auto;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            border-radius: 14px;
            overflow: hidden;
            background: #ffffff;
        }

        .slogan-row {
            display: grid;
            grid-template-columns: 165px minmax(120px, 0.6fr) 1fr;
            align-items: center;
            column-gap: 10px;
            border-bottom: 3px solid #e5e7eb;
            padding: 10px 14px;
        }

        .slogan-row.head {
            background: #111827;
            color: white;
            font-weight: 700;
            font-family: 'Kallisto', sans-serif;
            border-radius: 14px;
        }

        .slogan-msg {
            font-weight: 700;
            font-size: 29px;
            color: #111827;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            white-space: nowrap;
        }

        .slogan-text {
            font-size: 16px;
            color: #374151;
            padding-right: 10px;
            text-align: center;
        }

        .benefits-bar {
            position: relative;
            height: 46px;
            background: #eef2fb;
            border-radius: 20px;
            overflow: hidden;
        }

        .benefits-bar-fill {
            height: 100%;
            position: absolute;
            left: 0;
            top: 0;
        }

        @keyframes fillBar {
            from {
                width: 0% !important;
            }
            to {
                width: var(--final-width) !important;
            }
        }

        .mdf.animate-bars .benefits-bar-fill {
            animation: fillBar 1.6s ease-out forwards;
        }

        .benefits-value {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-weight: 700;
            font-family: 'Kallisto', sans-serif;
            font-size: 19px;
            color: #111827;
        }

        .gold { background: linear-gradient(90deg, #f7e58d, #f5d348); }
        .silver { background: linear-gradient(90deg, #9cd0ff, #71b9ff); }
        .bronze { background: linear-gradient(90deg, #ffb39c, #ff8c6b); }
        .neutral { background: #ccd3e5; }

        .header-score {
            text-align: center;
        }

        .slogan-img {
            max-height: 90px;
            width: auto;
            display: block;
            margin: 0 auto;
        }

        .conclusion-box {
            max-width: 900px;
            margin: 60px auto 0;
            padding: 30px 40px;
            background: linear-gradient(135deg, #f0f4ff, #e8ecff);
            border-radius: 16px;
            border-left: 5px solid #6366f1;
        }

        .conclusion-box h3 {
            font-family: 'Kallisto', sans-serif;
            font-size: 22px;
            font-weight: 700;
            color: #111827;
            margin-bottom: 14px;
        }

        .conclusion-box p {
            font-size: 16px;
            line-height: 1.8;
            color: #374151;
            margin-bottom: 10px;
        }

        @media (max-width: 860px) {
            .slogan-row { grid-template-columns: 1fr; }
            .impact-grid { grid-template-columns: 1fr; }
            .impact-value { font-size: 44px; }
            .learned-insights-grid { grid-template-columns: 1fr; }
            .learned-quote-card { padding: 28px 24px; }
            .learned-quote-card .quote-main { font-size: 19px; }
            .hero-logo-grid { grid-template-columns: repeat(2, 1fr); }
        }
        .study-info-box {
            margin-top: 36px;
            padding: 28px 32px;
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
            border: 1px solid #e2e8f0;
            border-radius: 14px;
            font-size: 14px;
            color: #475569;
            line-height: 1.7;
        }
        .study-info-box .info-header {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 700;
            color: #334155;
            margin-bottom: 16px;
            font-family: 'Kallisto', sans-serif;
        }
        .study-info-box .info-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            margin-top: 18px;
        }
        .study-info-box .info-card {
            text-align: center;
            padding: 16px 12px;
            background: #fff;
            border-radius: 10px;
            border: 1px solid #e2e8f0;
        }
        .study-info-box .info-card .info-icon { font-size: 24px; margin-bottom: 6px; }
        .study-info-box .info-card .info-label { font-size: 12px; color: #94a3b8; font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }
        .study-info-box .info-card .info-value { font-size: 20px; font-weight: 700; color: #1e293b; margin-top: 4px; }
        .study-info-box .info-card .info-value .info-flag { vertical-align: middle; }
        .study-info-box .info-card .info-value .info-flag--square { width: 26px; height: 26px; }
        .study-info-box .info-card .info-value .info-flag--rect { width: 32px; height: 20px; }
        .study-info-box .info-card .info-value .info-flag-group {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .study-info-box .info-disclaimer { margin-top: 16px; font-size: 13px; color: #94a3b8; font-style: italic; }
        @media (max-width: 900px) { .study-info-box .info-grid { grid-template-columns: 1fr; } }

        @media (max-width: 480px) {
            .chart-info .info-tooltip { width: calc(100vw - 40px); left: 50%; transform: translateX(-50%); }
            #productMixChart { height: 280px; }
            #bubble-chart { height: 350px; }
        }