@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;
}

/* process glassmorphism — fog blobs, backdrop blur, rune decor, num sizing */
.process-glass__fog {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.process-glass__fog::before {
    content: '';
    position: absolute;
    width: 28rem;
    height: 28rem;
    border-radius: 50%;
    filter: blur(5rem);
    opacity: 0.1;
    top: -10rem;
    left: -5rem;
    background: var(--bs-primary);
}

.process-glass__fog::after {
    content: '';
    position: absolute;
    width: 22rem;
    height: 22rem;
    border-radius: 50%;
    filter: blur(5rem);
    opacity: 0.07;
    bottom: -8rem;
    right: -5rem;
    background: var(--bs-primary);
}

.process-glass__card {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.process-glass__card-hov:hover,
.process-glass__card-hov:focus-within {
    transform: translateY(-0.35rem);
    box-shadow: var(--bs-box-shadow-lg);
}

.process-glass__detail {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 280ms ease, opacity 220ms ease, margin-top 220ms ease;
}

.process-glass__card-hov:hover .process-glass__detail,
.process-glass__card-hov:focus-within .process-glass__detail {
    max-height: 12rem;
    opacity: 1;
    margin-top: 0.25rem;
}

.process-glass__rune {
    position: absolute;
    font-size: 6rem;
    font-weight: 900;
    line-height: 1;
    opacity: 0.04;
    bottom: -0.5rem;
    right: 1rem;
    pointer-events: none;
    user-select: none;
}

.process-glass__num {
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
}

@media (prefers-reduced-motion: reduce) {
    .process-glass__card,
    .process-glass__detail {
        transition: none;
    }

    .process-glass__card-hov:hover,
    .process-glass__card-hov:focus-within {
        transform: none;
    }

    .process-glass__detail {
        max-height: none;
        opacity: 1;
        overflow: visible;
    }
}

.tips-compact__thumb {
    width: 3rem;
    height: 3rem;
}

.tips-compact__thumb--xs {
    width: 1.5rem;
    height: 1.5rem;
}

.tips-compact__min-shrink {
    min-width: 0;
}