/* ================================================
   Scroll Story – Timeline Comparison Section
   ================================================ */

/* Timeline container */
.scroll-story__timeline {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Vertical center line behind the dots */
.scroll-story__timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(
        180deg,
        transparent 0%,
        rgba(64, 138, 113, 0.3) 10%,
        rgba(64, 138, 113, 0.3) 90%,
        transparent 100%
    );
    z-index: 0;
}

/* Each row: problem | dot | solution */
.scroll-story__row {
    display: grid;
    grid-template-columns: 1fr 60px 1fr;
    align-items: center;
    gap: 0;
    padding: var(--sp-lg) 0;
}

/* --- Problem side (left) --- */
.scroll-story__problem {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-md);
    padding: var(--sp-lg);
    border-radius: var(--radius-md);
    background: rgba(239, 68, 68, 0.04);
    border: 1px solid rgba(239, 68, 68, 0.12);
    transition: transform var(--t-base) var(--ease-out),
                box-shadow var(--t-base) var(--ease-out);
}

.scroll-story__problem:hover {
    transform: translateX(-4px);
    box-shadow: -4px 0 20px rgba(239, 68, 68, 0.08);
}

/* --- Solution side (right) --- */
.scroll-story__solution {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-md);
    padding: var(--sp-lg);
    border-radius: var(--radius-md);
    background: rgba(64, 138, 113, 0.05);
    border: 1px solid rgba(64, 138, 113, 0.15);
    transition: transform var(--t-base) var(--ease-out),
                box-shadow var(--t-base) var(--ease-out);
}

.scroll-story__solution:hover {
    transform: translateX(4px);
    box-shadow: 4px 0 20px rgba(64, 138, 113, 0.1);
}

/* --- Text styling --- */
.scroll-story__problem strong,
.scroll-story__solution strong {
    font-size: var(--fs-base);
    display: block;
    margin-bottom: var(--sp-xs);
}

.scroll-story__problem p,
.scroll-story__solution p {
    font-size: var(--fs-sm);
    color: var(--c-text-muted);
    line-height: 1.55;
    margin: 0;
}

/* --- Markers (icons) --- */
.scroll-story__marker {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    margin-top: 2px;
}

.scroll-story__marker--bad {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.scroll-story__marker--good {
    background: rgba(64, 138, 113, 0.2);
    color: var(--c-accent);
    border: 1px solid rgba(64, 138, 113, 0.4);
}

/* --- Center divider dot --- */
.scroll-story__divider {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.scroll-story__dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--c-accent);
    box-shadow: 0 0 12px rgba(64, 138, 113, 0.4);
    border: 2px solid var(--c-bg);
}

/* --- Conclusion row --- */
.scroll-story__conclusion {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-xl);
    margin-top: var(--sp-xl);
    padding-top: var(--sp-xl);
    border-top: 1px solid var(--c-border);
}

.scroll-story__conclusion-bad,
.scroll-story__conclusion-good {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    padding: var(--sp-lg);
    border-radius: var(--radius-md);
    font-size: var(--fs-base);
}

.scroll-story__conclusion-bad {
    background: rgba(239, 68, 68, 0.06);
    border: 1px solid rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.scroll-story__conclusion-good {
    background: rgba(64, 138, 113, 0.08);
    border: 1px solid rgba(64, 138, 113, 0.2);
    color: var(--c-accent);
}

/* --- Reveal animation support --- */
.scroll-story__row {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-story__row.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive: stack on mobile --- */
@media (max-width: 768px) {
    .scroll-story__timeline::before {
        display: none;
    }

    .scroll-story__row {
        grid-template-columns: 1fr;
        gap: var(--sp-sm);
        padding: var(--sp-md) 0;
    }

    .scroll-story__divider {
        display: none;
    }

    .scroll-story__conclusion {
        grid-template-columns: 1fr;
    }
}