/* Animated Vertical Roadmap Styles */
.roadmap-section {
    padding: var(--space-20) 0;
    position: relative;
    overflow: hidden;
    background-color: var(--gray-50);
}

.roadmap-section__waves {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    line-height: 0;
    z-index: 1;
}

.roadmap-section__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
    position: relative;
    z-index: 2;
}

.roadmap-section__header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.roadmap-section__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    line-height: 1.2;
}

.roadmap-section__subtitle {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.5;
}

.roadmap-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-10) 0;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 0;
    background: linear-gradient(to bottom, var(--primary-blue), var(--secondary-purple));
    transform: translateX(-50%);
    border-radius: var(--radius-full);
    animation: line-grow 2s ease-out forwards;
    z-index: 1;
}

@keyframes line-grow {
    0% {
        height: 0;
    }
    100% {
        height: 100%;
    }
}

.roadmap-item {
    position: relative;
    margin-bottom: var(--space-16);
    opacity: 0;
    transform: translateY(20px);
    animation: fade-in-up 0.6s ease-out forwards;
    animation-delay: calc(var(--item-index) * 0.3s + 1s);
}

.roadmap-item:nth-child(1) {
    --item-index: 1;
}

.roadmap-item:nth-child(2) {
    --item-index: 2;
}

.roadmap-item:nth-child(3) {
    --item-index: 3;
}

.roadmap-item:nth-child(4) {
    --item-index: 4;
}

.roadmap-item:last-child {
    margin-bottom: 0;
}

@keyframes fade-in-up {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.roadmap-item__content {
    position: relative;
    width: 45%;
    padding: var(--space-6);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    z-index: 2;
}

.roadmap-item__content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.roadmap-item:nth-child(odd) .roadmap-item__content {
    margin-left: auto;
}

.roadmap-item__content::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 20px;
    height: 20px;
    background: var(--white);
    transform: rotate(45deg);
}

.roadmap-item:nth-child(odd) .roadmap-item__content::before {
    left: -10px;
}

.roadmap-item:nth-child(even) .roadmap-item__content::before {
    right: -10px;
}

.roadmap-item__date {
    position: absolute;
    top: 12px;
    width: 120px;
    padding: var(--space-2) var(--space-4);
    background: var(--gradient-rainbow);
    color: var(--primary-blue);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: var(--font-size-base);
    text-align: center;
    z-index: 3;
}

.roadmap-item:nth-child(odd) .roadmap-item__date {
    left: -60px;
    transform: translateX(-100%);
}

.roadmap-item:nth-child(even) .roadmap-item__date {
    right: -60px;
    transform: translateX(100%);
}

.roadmap-item__marker {
    position: absolute;
    top: 20px;
    left: 50%;
    width: 30px;
    height: 30px;
    background: var(--white);
    border: 4px solid var(--primary-blue);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 3;
    transition: var(--transition-normal);
}

.roadmap-item:hover .roadmap-item__marker {
    background: var(--primary-blue);
    transform: translateX(-50%) scale(1.2);
}

.roadmap-item__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}

.roadmap-item__description {
    color: var(--gray-600);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .roadmap-timeline::before {
        left: 30px;
    }
    
    .roadmap-item__content {
        width: calc(100% - 60px);
        margin-left: 60px !important;
    }
    
    .roadmap-item__content::before {
        left: -10px !important;
        right: auto !important;
    }
    
    .roadmap-item__date {
        left: 30px !important;
        right: auto !important;
        top: -40px;
        transform: translateX(-50%) !important;
    }
    
    .roadmap-item__marker {
        left: 30px;
    }
    
    .roadmap-item {
        margin-bottom: var(--space-20);
    }
}