/* ==========================================================================
   Process Timeline (Roadmap Section) Stylesheet
   ========================================================================== */

.timeline-section {
    background-color: var(--color-bg-secondary);
}

.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 4rem auto 0 auto;
    padding-left: 50px; /* space for the timeline line */
}

/* Vertical Timeline Line */
.timeline-progress-line {
    position: absolute;
    top: 15px;
    left: 20px;
    width: 2px;
    height: calc(100% - 30px);
    background-color: rgba(200, 160, 77, 0.1);
}

.timeline-progress-fill {
    width: 100%;
    height: 0%; /* updated via JS on scroll */
    background-color: var(--color-accent-gold);
    transition: height 0.1s ease;
}

/* Timeline Step Cards */
.timeline-step {
    position: relative;
    margin-bottom: 2.5rem;
}

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

/* Step marker dot/circle */
.step-marker {
    position: absolute;
    top: 5px;
    left: -42px; /* aligns directly on the progress line */
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background-color: var(--color-bg-secondary);
    border: 2px solid rgba(200, 160, 77, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-secondary);
    transition: var(--transition-smooth);
    z-index: 5;
}

/* Active Step Marker */
.timeline-step.active .step-marker {
    background-color: var(--color-accent-gold);
    border-color: var(--color-accent-gold);
    color: var(--color-bg-contrast);
    box-shadow: 0 0 12px rgba(200, 160, 77, 0.4);
}

/* Step Content Card */
.step-content {
    padding: 1.5rem 1.8rem;
    transition: var(--transition-smooth);
    border-color: rgba(200, 160, 77, 0.08);
}

.step-content h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.step-content p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.55;
}

/* Hover effects */
.timeline-step:hover .step-content {
    transform: translateX(6px);
    border-color: rgba(200, 160, 77, 0.25);
    background-color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 10px 25px -15px rgba(26, 22, 18, 0.08);
}

.timeline-step:hover .step-marker {
    transform: scale(1.1);
}

/* Responsive adjustments */
@media (max-width: 576px) {
    .timeline-container {
        padding-left: 36px;
    }
    
    .timeline-progress-line {
        left: 14px;
    }
    
    .step-marker {
        left: -32px;
        width: 22px;
        height: 22px;
        font-size: 0.7rem;
    }
    
    .step-content {
        padding: 1.2rem 1.4rem;
    }
}