/* The Difference — three pillars in editorial list form */

.difference {
    background: var(--color-paper);
}

.difference__list {
    border-top: 1px solid var(--color-bone);
}

.pillar {
    display: grid;
    grid-template-columns: 100px 1fr 64px;
    gap: var(--space-6);
    align-items: start;
    padding: var(--space-7) 0;
    border-bottom: 1px solid var(--color-bone);
    transition: background 0.4s var(--ease-out);
    cursor: default;
}

.pillar:hover {
    background: linear-gradient(to right, transparent, rgba(29, 29, 29, 0.03), transparent);
}

.pillar__num {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 3rem;
    color: var(--color-accent);
    line-height: 1;
    letter-spacing: -0.02em;
    transition: transform 0.5s var(--ease-out);
    display: inline-block;
    box-sizing: content-box;
    white-space: nowrap;
    vertical-align: bottom;
}

/* Typewriter reveal of the number — only when the user allows motion,
   so reduced-motion users always see the full number. */
@media (prefers-reduced-motion: no-preference) {
    .pillar__num {
        overflow: hidden;
        border-right: 3px solid transparent;
        padding-right: 0.12em;
    }
    .pillar.reveal .pillar__num { width: 0; }
    .pillar.is-visible .pillar__num {
        animation: pillarType 0.55s steps(2) forwards,
                   pillarCaret 0.5s step-end 5;
    }
    @keyframes pillarType {
        from { width: 0; }
        to   { width: 1.45em; }
    }
    @keyframes pillarCaret {
        0%, 49%   { border-right-color: var(--color-accent); }
        50%, 100% { border-right-color: transparent; }
    }
}

.pillar:hover .pillar__num {
    transform: translateX(8px);
}

.pillar__tag {
    display: inline-block;
    font-size: var(--fs-eyebrow);
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-slate);
    margin-bottom: var(--space-3);
}

.pillar__title {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2.1vw, 1.9rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--color-ink);
    margin-bottom: var(--space-3);
    letter-spacing: -0.015em;
    max-width: none;
}

.pillar__desc {
    font-size: var(--fs-lead);
    color: var(--color-graphite);
    line-height: 1.65;
    max-width: 60ch;
}

.pillar__arrow {
    color: var(--color-ink);
    opacity: 0.3;
    transition: opacity 0.4s var(--ease-out), transform 0.5s var(--ease-out);
    align-self: center;
}

.pillar:hover .pillar__arrow {
    opacity: 1;
    transform: translateX(8px);
    color: var(--color-accent);
}

@media (max-width: 880px) {
    .pillar {
        grid-template-columns: 1fr;
        gap: var(--space-3);
        padding: var(--space-6) 0;
    }
    .pillar__num {
        font-size: 2.25rem;
    }
    .pillar__arrow {
        display: none;
    }
}