.diag-tri-top,
.diag-tri-bottom {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.0);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.08));
    pointer-events: none;
}
#send-btn {
    font-family: 'Quantico', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: #0f172a;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-left: 45px;
}
#mentor-project-form {
    width: 85%;
}
.mentoring-content {
    padding: 150px 0;
    display: flex;
    justify-content: center;
}

.preview-grid {
    position: relative;
    inset: unset;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    pointer-events: auto;
    z-index: 15;
    overflow: hidden;
    width: 100%;
}

.preview-item {
    width: 100% !important;
    height: 100% !important;
    min-width: unset !important;
    max-width: unset !important;
    min-height: unset !important;
    aspect-ratio: 1 / 1;
    object-fit: cover !important;
    border-radius: 0;
    border: none;
    box-shadow: none;
    background: none;
    display: block;
}

.preview-fallback {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 0;
    background: rgba(15, 23, 42, 0.8);
    color: white;
    font-family: 'Quantico', sans-serif;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 5px;
    word-break: break-all;
}
#visuals-drop-zone {
    position: relative;
    min-height: 200px;
    height: auto;
}