/* ── FILTER BAR ── */
.filter-bar {
    background: var(--white);
    padding: 1.25rem 5%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 72px; /* Adjusted to sit below your main-nav height */
    z-index: 50;
}

.filter-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--txt-mid);
    margin-right: 0.5rem;
}

.filter-btn {
    padding: 0.45rem 1.1rem;
    border-radius: 50px;
    border: 1.5px solid var(--border);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--txt-mid);
    background: transparent;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'DM Sans', sans-serif;
}

.filter-btn:hover, .filter-btn.active {
    background: var(--navy);
    color: #fff;
    border-color: var(--navy);
}

.filter-btn.eu-btn {
    border-color: rgba(21, 101, 192, 0.3);
    color: #1565C0;
}

.filter-btn.eu-btn:hover, .filter-btn.eu-btn.active {
    background: #1565C0;
    color: #fff;
    border-color: #1565C0;
}

/* ── FEATURED CASE STUDY ── */
.featured-case {
    background: var(--white);
    padding: 5rem 5%;
}

.featured-inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3.5rem;
    align-items: center;
    background: var(--navy);
    border-radius: 28px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.featured-inner::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,184,0,0.18) 0%, transparent 70%);
}

.featured-tag {
    display: inline-block;
    background: rgba(255, 184, 0, 0.2);
    color: var(--yellow);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.featured-inner h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.featured-inner p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.featured-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.fstat {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
}

.fstat-num {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--yellow);
    line-height: 1;
}

.fstat-label {
    font-size: 0.68rem;
    color: rgba(255, 255, 255, 0.55);
    margin-top: 0.25rem;
}

/* ── CASE STUDY GRID & CARDS ── */
.cases-section {
    background: var(--cream);
    padding: 5rem 5%;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.case-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.25s, box-shadow 0.25s;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(10, 46, 92, 0.1);
}

.case-top {
    height: 150px;
    position: relative;
    overflow: hidden;
}

.case-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.case-org {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--blue);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}

.case-title {
    font-family: 'Playfair Display', serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.6rem;
    line-height: 1.3;
}

.case-desc {
    font-size: 0.8rem;
    color: var(--txt-mid);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.case-metrics {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.cm-num {
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--navy);
    display: block;
}

.cm-label {
    font-size: 0.65rem;
    color: var(--txt-mid);
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.case-tag {
    background: var(--blue-lt);
    color: var(--navy);
    font-size: 0.65rem;
    padding: 0.18rem 0.55rem;
    border-radius: 50px;
}

/* ── CTA BAND ── */
.cta-band {
    background: var(--yellow);
    padding: 4rem 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.cta-band h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: var(--navy);
    max-width: 480px;
    line-height: 1.3;
}

/* ── RESPONSIVE ── */
@media(max-width: 1024px) {
    .cases-grid { grid-template-columns: repeat(2, 1fr); }
}

@media(max-width: 900px) {
    .featured-inner, .cases-grid { grid-template-columns: 1fr; }
    .featured-stats { grid-template-columns: 1fr 1fr; }
}

@media(max-width: 600px) {
    .featured-stats { grid-template-columns: 1fr; }
    .cta-band { justify-content: center; text-align: center; }
}