.bk-premium-section {
    background: #ffffff; /* Fundo branco */
    padding: 100px 20px;
   
}

.bk-header {
  text-align: center;
  margin-bottom: 56px;
}

.bk-tag {
   display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #dbeafe;
    color: #1d4ed8;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 16px;
}
.bk-container {
    max-width: 1200px;
    margin: 0 auto;
}


.bk-titulo {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 12px;
}

.bk-sub {
   font-size: 0.9rem;
    color: #64748b;
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Grid de 3 colunas ajustado */
.bk-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.bk-card {
    background: #fff;
    border: 1px solid #f1f5f9; /* Borda quase invisível */
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); /* Sombra bem leve */
}

/* Efeito de destaque no card */
.bk-card:hover {
    transform: translateY(-10px);
    border-color: #dbeafe;
    box-shadow: 0 20px 25px -5px rgba(29, 78, 216, 0.1);
}

/* Container da Imagem - Ocupa o topo */
.bk-img-wrapper {
    width: 100%;
    height: 180px; /* Altura controlada para o card não ficar gigante */
    overflow: hidden;
}

.bk-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.bk-card:hover .bk-img-wrapper img {
    transform: scale(1.1);
}

/* Parte de texto do card */
.bk-info {
    padding: 25px;
    position: relative;
}

.bk-number {
    position: absolute;
    top: -20px;
    right: 25px;
    background: #1d4ed8;
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 4px 10px rgba(29, 78, 216, 0.3);
}

.bk-card-titulo {
    font-size: 1.1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 10px;
    transition: color 0.3s;
}

.bk-card:hover .bk-card-titulo {
    color: #1d4ed8;
}

.bk-card-texto {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.6;
}

/* Mobile */
@media (max-width: 768px) {
    .bk-grid { grid-template-columns: 1fr; }
}