/* ============================================================
   TJ Case Studies — self-contained styles
   Loaded from mu-plugins. Theme CSS is disabled on this site,
   so everything here is scoped under .cs-wrap and self-sufficient.
   ============================================================ */

.cs-wrap {
    --cs-indigo-950: #1e1b4b;
    --cs-indigo-900: #312e81;
    --cs-indigo-700: #4338ca;
    --cs-indigo-600: #4f46e5;
    --cs-indigo-500: #6366f1;
    --cs-indigo-50:  #eef2ff;

    --cs-ink:        #15131f;
    --cs-gray-900:   #1f2937;
    --cs-gray-700:   #374151;
    --cs-gray-600:   #4b5563;
    --cs-gray-500:   #6b7280;
    --cs-gray-400:   #9ca3af;
    --cs-gray-200:   #e5e7eb;
    --cs-gray-100:   #f3f4f6;
    --cs-gray-50:    #f9fafb;
    --cs-white:      #ffffff;

    --cs-radius-sm: 8px;
    --cs-radius:    14px;
    --cs-radius-lg: 20px;

    --cs-shadow:    0 1px 2px rgba(16,15,40,.06), 0 8px 24px rgba(16,15,40,.06);
    --cs-shadow-lg: 0 12px 40px rgba(16,15,40,.14);

    --cs-transition: .2s ease;
    --cs-transition-slow: .45s cubic-bezier(.22,1,.36,1);

    --cs-maxw: 1180px;

    max-width: var(--cs-maxw);
    margin: 0 auto;
    padding: clamp(2rem, 5vw, 4.5rem) clamp(1rem, 4vw, 2rem) 5rem;
    color: var(--cs-gray-900);
    font-family: inherit;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.cs-wrap *,
.cs-wrap *::before,
.cs-wrap *::after { box-sizing: border-box; }

.cs-wrap img { max-width: 100%; height: auto; display: block; }

.cs-eyebrow {
    margin: 0 0 .75rem;
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--cs-indigo-600);
}

/* ============================================================
   ARCHIVE — HEADER
   ============================================================ */
.cs-archive__head { max-width: 760px; margin-bottom: clamp(2rem, 4vw, 3rem); }

.cs-archive__title {
    margin: 0 0 1rem;
    font-size: clamp(2rem, 4.5vw, 3.1rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -.02em;
    color: var(--cs-ink);
}

.cs-archive__intro {
    margin: 0;
    font-size: clamp(1.05rem, 1.6vw, 1.2rem);
    color: var(--cs-gray-600);
}

/* ============================================================
   ARCHIVE — FILTERS
   ============================================================ */
.cs-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem 2rem;
    padding: 1.25rem 0 1.5rem;
    border-top: 1px solid var(--cs-gray-200);
    border-bottom: 1px solid var(--cs-gray-200);
    margin-bottom: 1.25rem;
}

.cs-filter-group { display: flex; flex-direction: column; gap: .5rem; }

.cs-filter-group__label {
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--cs-gray-400);
}

.cs-filter-group__chips { display: flex; flex-wrap: wrap; gap: .4rem; }

.cs-chip {
    appearance: none;
    border: 1px solid var(--cs-gray-200);
    background: var(--cs-white);
    color: var(--cs-gray-700);
    padding: .4rem .8rem;
    border-radius: 999px;
    font: inherit;
    font-size: .85rem;
    line-height: 1;
    cursor: pointer;
    transition: background var(--cs-transition), color var(--cs-transition), border-color var(--cs-transition);
}

.cs-chip:hover { border-color: var(--cs-indigo-500); color: var(--cs-indigo-700); }

.cs-chip.is-active {
    background: var(--cs-indigo-600);
    border-color: var(--cs-indigo-600);
    color: var(--cs-white);
}

.cs-chip:focus-visible { outline: 2px solid var(--cs-indigo-600); outline-offset: 2px; }

.cs-result-count {
    margin: 0 0 1.5rem;
    font-size: .85rem;
    color: var(--cs-gray-500);
}
.cs-result-count [data-cs-count] { font-weight: 700; color: var(--cs-gray-700); }

/* ============================================================
   ARCHIVE — GRID & CARDS
   ============================================================ */
.cs-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 640px)  { .cs-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .cs-grid { grid-template-columns: repeat(3, 1fr); gap: 1.75rem; } }

.cs-card {
    background: var(--cs-white);
    border: 1px solid var(--cs-gray-200);
    border-radius: var(--cs-radius-lg);
    overflow: hidden;
    box-shadow: var(--cs-shadow);
    transition: transform var(--cs-transition-slow), box-shadow var(--cs-transition-slow);
}
.cs-card:hover { transform: translateY(-4px); box-shadow: var(--cs-shadow-lg); }
.cs-card[data-hidden="true"] { display: none; }

.cs-card__link { display: block; text-decoration: none; color: inherit; }
.cs-card__link:focus-visible { outline: 2px solid var(--cs-indigo-600); outline-offset: -2px; }

.cs-card__media {
    position: relative;
    aspect-ratio: 16 / 9;
    background: var(--cs-gray-100);
    overflow: hidden;
}
.cs-card__image {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform var(--cs-transition-slow);
}
.cs-card:hover .cs-card__image { transform: scale(1.05); }

.cs-card__image-placeholder {
    display: flex; align-items: center; justify-content: center;
    width: 100%; height: 100%;
    color: var(--cs-gray-400);
}
.cs-card__image-placeholder svg { width: 40px; height: 40px; }

.cs-card__kpi-badge {
    position: absolute;
    left: .8rem; bottom: .8rem;
    padding: .4rem .7rem;
    background: rgba(30, 27, 75, .92);
    backdrop-filter: blur(4px);
    color: var(--cs-white);
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: -.01em;
    border-radius: var(--cs-radius-sm);
}

.cs-card__body { padding: 1.15rem 1.2rem 1.3rem; }

.cs-card__client { min-height: 28px; margin-bottom: .55rem; display: flex; align-items: center; }
.cs-card__client-logo { max-width: 104px; max-height: 28px; width: auto; object-fit: contain; }
.cs-card__client-name { font-size: .82rem; font-weight: 600; color: var(--cs-gray-700); }
.cs-card__client-anon {
    display: inline-flex;
    padding: .2rem .6rem;
    background: var(--cs-gray-100);
    border-radius: var(--cs-radius-sm);
    font-size: .74rem; font-weight: 600; color: var(--cs-gray-600);
}

.cs-card__title {
    margin: 0 0 .35rem;
    font-size: 1.08rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--cs-ink);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.cs-card__date { margin: 0 0 .85rem; font-size: .82rem; color: var(--cs-gray-500); }

.cs-card__badges { display: flex; flex-wrap: wrap; gap: .35rem; }
.cs-card__badge {
    font-size: .7rem; font-weight: 600;
    padding: .22rem .55rem;
    border-radius: 999px;
    background: var(--cs-indigo-50);
    color: var(--cs-indigo-700);
}

.cs-empty {
    margin: 2rem 0;
    padding: 2rem;
    text-align: center;
    color: var(--cs-gray-500);
    background: var(--cs-gray-50);
    border-radius: var(--cs-radius);
}

/* ============================================================
   SINGLE
   ============================================================ */
.cs-back {
    display: inline-block;
    margin-bottom: 1.5rem;
    font-size: .9rem;
    font-weight: 600;
    color: var(--cs-indigo-600);
    text-decoration: none;
}
.cs-back:hover { color: var(--cs-indigo-700); }

.cs-hero { max-width: 820px; margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }

.cs-hero__meta {
    display: flex; align-items: center; gap: 1rem;
    margin-bottom: 1rem; flex-wrap: wrap;
}
.cs-hero__client-logo { max-height: 40px; width: auto; }
.cs-hero__client-name { font-weight: 700; color: var(--cs-gray-700); }
.cs-hero__client-anon {
    display: inline-flex; padding: .25rem .7rem;
    background: var(--cs-gray-100); border-radius: var(--cs-radius-sm);
    font-size: .82rem; font-weight: 600; color: var(--cs-gray-600);
}
.cs-hero__date { font-size: .9rem; color: var(--cs-gray-500); }

.cs-hero__title {
    margin: 0 0 1rem;
    font-size: clamp(2rem, 4.5vw, 3rem);
    font-weight: 800; line-height: 1.1; letter-spacing: -.02em;
    color: var(--cs-ink);
}
.cs-hero__summary {
    margin: 0 0 1.5rem;
    font-size: clamp(1.1rem, 1.8vw, 1.3rem);
    color: var(--cs-gray-600);
}

.cs-hero__kpi {
    display: inline-flex;
    align-items: baseline;
    padding: .9rem 1.3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--cs-indigo-600), var(--cs-indigo-900));
    border-radius: var(--cs-radius);
    color: var(--cs-white);
}
.cs-hero__kpi-value {
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 800; letter-spacing: -.02em;
}

.cs-hero__tags { display: flex; flex-wrap: wrap; gap: .45rem; }
.cs-tag {
    font-size: .78rem; font-weight: 600;
    padding: .3rem .7rem; border-radius: 999px;
    background: var(--cs-indigo-50); color: var(--cs-indigo-700);
}

.cs-cover {
    margin: 0 0 clamp(2rem, 4vw, 3rem);
    border-radius: var(--cs-radius-lg);
    overflow: hidden;
    box-shadow: var(--cs-shadow);
}
.cs-cover img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }

.cs-body { max-width: 820px; }

.cs-section { margin-bottom: clamp(2rem, 4vw, 3rem); }
.cs-section__title {
    margin: 0 0 1rem;
    font-size: 1.35rem; font-weight: 700; letter-spacing: -.01em;
    color: var(--cs-ink);
    padding-bottom: .5rem;
    border-bottom: 2px solid var(--cs-indigo-100, var(--cs-indigo-50));
    display: inline-block;
}

.cs-prose { color: var(--cs-gray-700); font-size: 1.05rem; }
.cs-prose p { margin: 0 0 1rem; }
.cs-prose p:last-child { margin-bottom: 0; }

/* KPI grid */
.cs-kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}
.cs-kpi {
    display: flex; flex-direction: column; gap: .3rem;
    padding: 1.25rem;
    background: var(--cs-gray-50);
    border: 1px solid var(--cs-gray-200);
    border-radius: var(--cs-radius);
}
.cs-kpi.is-primary {
    background: linear-gradient(135deg, var(--cs-indigo-600), var(--cs-indigo-900));
    border-color: transparent;
    color: var(--cs-white);
}
.cs-kpi__value { font-size: 1.7rem; font-weight: 800; letter-spacing: -.02em; color: var(--cs-indigo-700); }
.cs-kpi.is-primary .cs-kpi__value { color: var(--cs-white); }
.cs-kpi__label { font-size: .92rem; font-weight: 600; color: var(--cs-gray-700); }
.cs-kpi.is-primary .cs-kpi__label { color: rgba(255,255,255,.92); }
.cs-kpi__note { font-size: .78rem; color: var(--cs-gray-500); }
.cs-kpi.is-primary .cs-kpi__note { color: rgba(255,255,255,.75); }

/* Creatives */
.cs-creatives { display: grid; gap: 1rem; }
.cs-creatives img { border-radius: var(--cs-radius); box-shadow: var(--cs-shadow); width: 100%; }
.cs-creatives--grid,
.cs-creatives--side-by-side { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.cs-creatives--carousel {
    grid-auto-flow: column;
    grid-auto-columns: minmax(280px, 80%);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: .5rem;
}
.cs-creatives--carousel img { scroll-snap-align: start; }

/* Insights */
.cs-insights { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.cs-insight {
    display: flex; gap: .9rem; align-items: flex-start;
    padding: 1rem 1.2rem;
    background: var(--cs-gray-50);
    border-left: 3px solid var(--cs-indigo-600);
    border-radius: var(--cs-radius-sm);
}
.cs-insight__cat {
    flex: 0 0 auto;
    font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    color: var(--cs-indigo-700);
    padding-top: .15rem;
}
.cs-insight__text { color: var(--cs-gray-700); }

/* Platforms */
.cs-platforms__list { display: flex; flex-wrap: wrap; gap: .75rem; }
.cs-platform {
    display: inline-flex; align-items: center; gap: .55rem;
    padding: .55rem .95rem;
    background: var(--cs-white);
    border: 1px solid var(--cs-gray-200);
    border-radius: 999px;
    font-size: .9rem; font-weight: 600; color: var(--cs-gray-700);
}
.cs-platform img { height: 22px; width: auto; }

/* CTA */
.cs-cta { margin-top: clamp(2rem, 4vw, 3rem); }
.cs-cta__btn {
    display: inline-block;
    padding: .9rem 1.8rem;
    background: var(--cs-indigo-600);
    color: var(--cs-white);
    font-weight: 700;
    text-decoration: none;
    border-radius: var(--cs-radius);
    transition: background var(--cs-transition), transform var(--cs-transition);
}
.cs-cta__btn:hover { background: var(--cs-indigo-700); transform: translateY(-1px); }
.cs-cta__btn:focus-visible { outline: 2px solid var(--cs-indigo-600); outline-offset: 3px; }

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    .cs-wrap * { transition: none !important; }
    .cs-card:hover { transform: none; }
    .cs-card:hover .cs-card__image { transform: none; }
}