.y4w-timeline-simple {
    position: relative;
    width: 120%;
    max-width: 1200px;
    margin: 3rem auto;
    background: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 400px;
    padding: 0 2rem;
}

.y4w-line-progress {
    position: absolute;
    top: 50%;
    left: 0;
    height: 4px;
    width: 0;
    background: linear-gradient(90deg, #1ce5ba 0%, #26d9a5 100%);
    z-index: 1;
    transform: translateY(-50%);
    transition: width 0.3s ease;
    max-width: 100%;
    box-shadow: 0 0 10px rgba(28, 229, 186, 0.5);
}

.y4w-timeline-point {
    position: absolute;
    top: 50%;
    width: 20px;
    height: 20px;
    background: #1ce5ba;
    border-radius: 50%;
    border: 4px solid #1a2332;
    z-index: 2;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 20px rgba(28, 229, 186, 0.6);
    transition: all 0.3s ease;
}

.y4w-timeline-point:hover {
    transform: translate(-50%, -50%) scale(1.2);
    box-shadow: 0 0 30px rgba(28, 229, 186, 0.8);
}

.y4w-timeline-card {
    position: absolute;
    width: 310px;
    max-width: 90vw;
    min-width: 220px;
    min-height: 200px;
    background: rgba(30, 41, 59, 0.95);
    border: 2px solid rgba(28, 229, 186, 0.3);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(28, 229, 186, 0.1);
    padding: 1.25rem;
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: all 0.6s cubic-bezier(.4, 0, .2, 1);
    z-index: 3;
    backdrop-filter: blur(10px);
}

.y4w-timeline-card:hover {
    border-color: rgba(28, 229, 186, 0.6);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(28, 229, 186, 0.2);
    transform: translateY(0) scale(1.02) !important;
}

.y4w-timeline-card.up {
    top: -100px;
}

.y4w-timeline-card.down {
    top: 220px;
}

.y4w-timeline-card .y4w-subtitle {
    font-size: 0.75rem;
    font-weight: 600;
    color: #1ce5ba;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.25rem;
}

.y4w-timeline-card .y4w-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.25rem;
    font-family: 'Inter', 'Roboto', sans-serif;
}

.y4w-timeline-card .y4w-year {
    font-size: 0.875rem;
    font-weight: 500;
    color: #94a3b8;
    margin-bottom: 0.75rem;
    font-style: italic;
}

.y4w-timeline-card ul {
    padding-left: 20px;
    margin: 0;
    list-style: none;
}

.y4w-timeline-card li {
    font-size: 0.875rem;
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 0;
}

.y4w-timeline-card li:before {
    content: "→";
    color: #1ce5ba;
    font-weight: bold;
    position: absolute;
    left: -20px;
}

.y4w-vertical-line {
    display: none;
}

@media (max-width: 900px) {
    .y4w-timeline-simple {
        min-height: 0;
        padding: 1rem;
        margin: 2rem auto;
    }
    
    .y4w-timeline-card,
    .y4w-timeline-card.up,
    .y4w-timeline-card.down {
        position: relative !important;
        width: 95vw;
        max-width: 95vw;
        left: 0 !important;
        right: 0;
        margin: 2rem auto;
        top: auto !important;
        transform: none !important;
        opacity: 1 !important;
    }
    
    .y4w-timeline-card:hover {
        transform: scale(1.02) !important;
    }
    
    .y4w-timeline-point,
    .y4w-line-progress {
        display: none !important;
    }
    
    .y4w-vertical-line {
        display: block;
        position: absolute;
        left: 1.5rem;
        top: 0;
        width: 3px;
        height: 100%;
        background: linear-gradient(180deg, #1ce5ba 0%, #26d9a5 100%);
        transform: none;
        z-index: 0;
        box-shadow: 0 0 10px rgba(28, 229, 186, 0.4);
    }
    
    .y4w-heading {
        font-size: 1.5rem !important;
    }
}