/* ============================================
   YEV - case-studies page styles (externalized v6.01)
   ============================================ */

.featured-case {
            background: linear-gradient(135deg, var(--indigo) 0%, var(--indigo-deep) 100%);
            color: white;
            padding: 50px 44px;
            border-radius: 22px;
            margin-bottom: 40px;
        }
        .featured-case .featured-label {
            display: inline-block;
            background: var(--gold);
            color: var(--indigo);
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.6875rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .featured-case h2 {
            font-size: 1.625rem;
            margin-bottom: 16px;
            line-height: 1.3;
            color: white;
        }
        .featured-case p { font-size: 1rem; line-height: 1.7; margin-bottom: 14px; opacity: 0.95; }
        .featured-case h4 {
            color: var(--gold);
            font-size: 0.8125rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin: 22px 0 8px;
        }
        .featured-case .results-block {
            background: rgba(254,212,42,0.1);
            border-left: 4px solid var(--gold);
            padding: 18px 22px;
            border-radius: 8px;
            margin-top: 14px;
        }
        .featured-case .results-block h4 { margin-top: 0; }

        .case-list { display: grid; gap: 24px; }
        .case-card {
            background: white;
            padding: 34px 32px;
            border-radius: 18px;
            border: 1px solid rgba(33,37,107,0.1);
            box-shadow: 0 6px 22px rgba(33,37,107,0.07);
        }
        .case-tag {
            display: inline-block;
            background: linear-gradient(135deg, var(--gold) 0%, var(--gold-warm) 100%);
            color: var(--indigo);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.6875rem;
            font-weight: 800;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .case-card h3 {
            font-size: 1.25rem;
            color: var(--indigo);
            margin-bottom: 16px;
            line-height: 1.3;
            font-weight: 800;
        }
        .case-card .cs-block { margin-bottom: 14px; }
        .case-card h4 {
            font-size: 0.6875rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--yev-royal);
            margin-bottom: 6px;
            font-weight: 800;
        }
        .case-card p { font-size: 0.9375rem; color: #444; line-height: 1.65; }
        .case-card ul { padding-left: 22px; margin-top: 4px; }
        .case-card li { font-size: 0.875rem; color: #333; line-height: 1.7; }
        .case-card .results { background: #f9f5e8; padding: 14px 18px; border-radius: 10px; margin-top: 8px; }

/* ===== v6.02.3 alternating case-study layout ===== */
/* v6.15 flip: mobile-first. Single column is the base (story then image,
   one at a time); the alternating two-column layout enhances at min-width:821. */
.case-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    align-items: center;
}
.case-card .cs-text { min-width: 0; }
.case-card:nth-child(even) .cs-text,
.case-card:nth-child(even) .cs-media { order: 0; }
.cs-media { display: flex; }
.cs-img-placeholder {
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: 14px;
    border: 2px dashed var(--silver);
    background: linear-gradient(135deg, #f5f7fb 0%, #eef2f7 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-size: 0.875rem;
    font-style: italic;
}
/* Desktop: two columns with alternating story/image order. */
@media (min-width: 821px) {
    .case-card { grid-template-columns: 1fr 1fr; gap: 32px; }
    .case-card:nth-child(even) .cs-text { order: 2; }
    .case-card:nth-child(even) .cs-media { order: 1; }
}

/* ===== v6.02.5 case-study images + lightbox ===== */
.cs-img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 14px;
    border: 2px solid var(--silver);
    cursor: zoom-in;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: block;
}
.cs-img:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(33,37,107,0.18); }
.cs-lightbox {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0,16,49,0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    cursor: zoom-out;
    animation: csFade 0.18s ease;
}
@keyframes csFade { from { opacity: 0; } to { opacity: 1; } }
.cs-lightbox img {
    max-width: 92vw;
    max-height: 88vh;
    border-radius: 12px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}
.cs-lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--yev-gold);
    background: transparent;
    color: var(--yev-gold);
    font-size: 1.75rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cs-lightbox-close:hover { background: var(--yev-gold); color: var(--yev-navy); }