/* Layout Grid */
.bp3d-grid-container {
    display: grid;
    gap: 30px;
    width: 100%;
    box-sizing: border-box;
}

/* responsive columns fallback */
.bp3d-grid-cols-1 .bp3d-grid-container { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.bp3d-grid-cols-2 .bp3d-grid-container { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.bp3d-grid-cols-3 .bp3d-grid-container { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.bp3d-grid-cols-4 .bp3d-grid-container { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 1024px) {
    .bp3d-grid-cols-tablet-1 .bp3d-grid-container { grid-template-columns: repeat(1, minmax(0, 1fr)); }
    .bp3d-grid-cols-tablet-2 .bp3d-grid-container { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .bp3d-grid-cols-tablet-3 .bp3d-grid-container { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .bp3d-grid-cols-tablet-4 .bp3d-grid-container { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
    .bp3d-grid-cols-mobile-1 .bp3d-grid-container { grid-template-columns: repeat(1, minmax(0, 1fr)); }
    .bp3d-grid-cols-mobile-2 .bp3d-grid-container { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Card perspective container */
.bp3d-card-wrapper {
    perspective: 1000px;
}

/* Card 3D Styling */
.bp3d-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.15s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.2s ease;
    overflow: hidden;
    background-color: #ffffff;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.05);
}

.bp3d-card:hover {
    box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}

/* Image */
.bp3d-card-image-wrap {
    position: relative;
    width: 100%;
    padding-top: 60%;
    overflow: hidden;
    transform: translateZ(20px); /* 3D layer lift */
}

.bp3d-card-image-wrap img,
.bp3d-card-image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.bp3d-card-image-placeholder {
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.bp3d-placeholder-inner {
    color: #ffffff;
    font-weight: bold;
    font-size: 14px;
    letter-spacing: 1px;
    transform: translateZ(10px);
}

/* Body Content */
.bp3d-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    transform: translateZ(30px); /* Deeper 3D depth */
}

.bp3d-card-date {
    display: flex;
    align-items: center;
    font-size: 13px;
    color: #9ca3af;
    margin-bottom: 12px;
}

.bp3d-card-date i {
    margin-right: 6px;
    font-size: 14px;
}

.bp3d-card-title {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.4;
    margin: 0 0 12px 0;
}

.bp3d-card-title a {
    color: #1f2937;
    text-decoration: none;
    transition: color 0.2s ease;
}

.bp3d-card-title a:hover {
    color: #6366f1;
}

.bp3d-card-excerpt {
    font-size: 14px;
    line-height: 1.6;
    color: #4b5563;
    margin-bottom: 0;
}

.bp3d-no-posts {
    text-align: center;
    padding: 40px;
    color: #9ca3af;
    font-size: 16px;
}