/* Timeline Navigation Styles */

.timeline-nav {
    position: fixed;
    left: var(--space-8);
    top: 50%;
    transform: translateY(-50%);
    z-index: var(--z-timeline);
    display: none;
}

@media (min-width: 1024px) {
    .timeline-nav {
        display: block;
    }
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 2px;
    height: 300px;
    background: linear-gradient(to bottom, 
        var(--primary-blue) 0%, 
        var(--primary-blue) var(--progress, 25%), 
        var(--border-color) var(--progress, 25%), 
        var(--border-color) 100%
    );
    transition: var(--transition);
}

.timeline-dots {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-16);
    align-items: center;
}

.timeline-dot {
    position: relative;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--white);
    border: 3px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    z-index: 2;
}

.timeline-dot:hover {
    border-color: var(--primary-blue);
    transform: scale(1.2);
}

.timeline-dot.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px var(--primary-blue-light);
}

.timeline-label {
    position: absolute;
    left: calc(100% + var(--space-4));
    top: 50%;
    transform: translateY(-50%);
    background: var(--white);
    color: var(--medium-gray);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--border-radius);
    font-size: var(--text-sm);
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.timeline-dot:hover .timeline-label,
.timeline-dot.active .timeline-label {
    opacity: 1;
    visibility: visible;
}

.timeline-dot.active .timeline-label {
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

/* Timeline label arrows */
.timeline-label::before {
    content: '';
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-right-color: var(--white);
    z-index: 2;
}

.timeline-label::after {
    content: '';
    position: absolute;
    right: calc(100% + 1px);
    top: 50%;
    transform: translateY(-50%);
    border: 7px solid transparent;
    border-right-color: var(--border-color);
    z-index: 1;
}

.timeline-dot.active .timeline-label::after {
    border-right-color: var(--primary-blue);
}

/* Progress animation */
.timeline-line.progress-25 {
    --progress: 25%;
}

.timeline-line.progress-50 {
    --progress: 50%;
}

.timeline-line.progress-75 {
    --progress: 75%;
}

.timeline-line.progress-100 {
    --progress: 100%;
}

/* Mobile timeline (bottom navigation) */
@media (max-width: 1023px) {
    .timeline-nav {
        position: fixed;
        bottom: var(--space-6);
        left: 50%;
        transform: translateX(-50%);
        top: auto;
        display: flex;
        background: var(--white);
        border-radius: var(--border-radius-xl);
        padding: var(--space-3);
        box-shadow: var(--shadow-lg);
        border: 1px solid var(--border-color);
        backdrop-filter: blur(10px);
    }
    
    .timeline-line {
        display: none;
    }
    
    .timeline-dots {
        flex-direction: row;
        gap: var(--space-4);
    }
    
    .timeline-dot {
        width: 12px;
        height: 12px;
        border-width: 2px;
    }
    
    .timeline-label {
        position: absolute;
        bottom: calc(100% + var(--space-2));
        left: 50%;
        transform: translateX(-50%);
        font-size: var(--text-xs);
        padding: var(--space-1) var(--space-2);
    }
    
    .timeline-label::before {
        top: 100%;
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        border-top-color: var(--white);
        border-right-color: transparent;
    }
    
    .timeline-label::after {
        top: calc(100% + 1px);
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        border-top-color: var(--border-color);
        border-right-color: transparent;
    }
    
    .timeline-dot.active .timeline-label::after {
        border-top-color: var(--primary-blue);
    }
}

/* Timeline animations */
@keyframes timelinePulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.timeline-dot.active {
    animation: timelinePulse 2s ease-in-out infinite;
}

/* Smooth progress bar animation */
.timeline-line {
    background-size: 100% 200%;
    background-image: linear-gradient(to bottom, 
        var(--primary-blue) 0%, 
        var(--primary-blue) 50%, 
        var(--border-color) 50%, 
        var(--border-color) 100%
    );
    background-position: 0 100%;
    transition: background-position 0.6s ease;
}

.timeline-line.animate-progress {
    background-position: 0 0;
}