@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&display=swap');
body {
    font-family: 'Noto Sans JP', sans-serif;
}
.gradient-bg {
    background: #ffffff;
}
.section-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
}
.tech-tag {
    background: linear-gradient(45deg, #3b82f6, #1d4ed8);
    transition: all 0.3s ease;
}
.tech-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.timeline-item {
    position: relative;
    padding-left: 2rem;
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    background: #3b82f6;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 3px #3b82f6;
}
.timeline-item::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1.5rem;
    width: 2px;
    height: calc(100% - 1rem);
    background: linear-gradient(to bottom, #3b82f6, transparent);
}
.timeline-item:last-child::after {
    display: none;
}