/* ==========================================================================
   How It Works — Vertical Step Timeline Component
   ========================================================================== */

.m-timeline {
    position: relative;
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.m-timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 20px;
    bottom: 20px;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-secondary), transparent);
    z-index: 0;
}

.m-timeline-step {
    display: flex;
    gap: 2.5rem;
    align-items: flex-start;
    position: relative;
    padding-bottom: 3.5rem;
    transition: transform 0.3s ease;
}

.m-timeline-step:last-child {
    padding-bottom: 0;
}

.m-timeline-step:hover {
    transform: translateX(8px);
}

.m-timeline-number {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--color-surface);
    border: 2px solid var(--color-accent);
    box-shadow: 0 0 25px rgba(99, 102, 241, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 2px;
    z-index: 1;
    transition: all 0.3s ease;
}

.m-timeline-step:hover .m-timeline-number {
    background: var(--gradient-accent);
    border-color: transparent;
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.5);
}

.m-timeline-step-num {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--color-accent);
    line-height: 1;
}

.m-timeline-step:hover .m-timeline-step-num {
    color: #fff;
}

.m-timeline-body {
    padding-top: 1rem;
}

.m-timeline-title {
    font-family: var(--font-heading);
    font-size: var(--font-h3);   /* 24px */
    font-weight: 800;
    color: var(--color-text-primary);
    margin: 0 0 0.65rem 0;
}

.m-timeline-desc {
    font-size: var(--font-body-text);  /* 18px */
    color: var(--color-text-secondary);
    line-height: 1.65;
    margin: 0;
}

@media (max-width: 768px) {
    .m-timeline::before { left: 28px; }
    .m-timeline-number { width: 56px; height: 56px; }
    .m-timeline-step { gap: 1.5rem; }
    .m-timeline-title { font-size: 1.25rem; }
    .m-timeline-desc { font-size: 1rem; }
}