@keyframes driftLeftRight {
    0% { transform: translateX(-15%); }
    50% { transform: translateX(15%); }
    100% { transform: translateX(-15%); }
}

@keyframes driftRightLeft {
    0% { transform: translateX(15%); }
    50% { transform: translateX(-15%); }
    100% { transform: translateX(15%); }
}

.intro-drift-strip-a {
    width: 33%;
    height: 6rem;
    animation: driftLeftRight 14s ease-in-out infinite;
}

.intro-drift-strip-b {
    width: 50%;
    height: 4rem;
    animation: driftRightLeft 18s ease-in-out infinite;
}

.intro-drift-strip-c {
    width: 25%;
    height: 5rem;
    animation: driftLeftRight 12s ease-in-out infinite;
    animation-delay: 3s;
}

.intro-drift-container {
    max-width: 80rem;
}

.intro-drift-textbox {
    max-width: 48rem;
}

.portfolio-flex__min {
    min-width: 0;
}

/* Card hover: scale */
.portfolio-item-hover {
    transition: transform 0.3s ease;
}
.portfolio-item-hover:hover {
    transform: scale(1.05);
}

/* Overlay: hidden by default, fades in when card is hovered */
.portfolio-overlay-hover {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.portfolio-item-hover:hover .portfolio-overlay-hover {
    opacity: 0.9;
}

.content-img-ratio {
    display: block;
    width: 100%;
    height: 100%;
    min-width: 0;
    object-fit: cover;
    flex-shrink: 0;
}

.briefing-chapter__column-inset {
    padding: 4rem;
}

.polar-frame-quote__portrait {
    width: 7rem;
    height: 7rem;
}


.nudge-beacon__section {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.nudge-beacon__prompt--glow:hover { transform: scale(1.05); transition: transform .2s ease; }

.nudge-beacon__cards-bs {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
}

.nudge-beacon__cards-bs > div {
    flex: 1 1 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

@media (min-width: 768px) {
    .nudge-beacon__cards-bs > div {
        flex: 1 1 calc((100% - 4rem) / 3);
        max-width: calc((100% - 4rem) / 3);
    }
}