* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

nav a:hover {
    opacity: 0.8;
}

.hero {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 150px 2rem 100px;
    text-align: center;
    margin-top: 60px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s 0.2s backwards;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: white;
    color: #f5576c;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 1s 0.4s backwards;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

section {
    padding: 80px 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #f5576c;
}

.seminars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.seminar-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 4px solid #f5576c;
}

.seminar-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.seminar-card h3 {
    color: #f5576c;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.seminar-card h3 a{
    color: #f5576c;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.seminar-card h3 a:hover{
    color: #5774f5;
}

.seminar-tag {
    display: inline-block;
    background: #fff0f3;
    color: #f5576c;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.about {
    background: #f8f9fa;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
    margin-top: 3rem;
}

.stat-item {
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: #f5576c;
}

.stat-label {
    font-size: 1.1rem;
    color: #666;
    margin-top: 0.5rem;
}

.schedule {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.schedule h2 {
    color: white;
}

.schedule-list {
    max-width: 800px;
    margin: 0 auto;
}

.schedule-item {
    background: rgba(255,255,255,0.1);
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    backdrop-filter: blur(10px);
    transition: background 0.3s;
}

.schedule-item:hover {
    background: rgba(255,255,255,0.2);
}

.schedule-date {
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.contact {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    text-align: center;
}

.contact h2 {
    color: white;
}

.contact-info {
    margin-top: 2rem;
    font-size: 1.2rem;
}

footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    nav ul {
        gap: 1rem;
        font-size: 0.9rem;
    }

    h2 {
        font-size: 2rem;
    }
}