:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --text-color: #333333;
    --background-color: #FFFFFF;
    --card-background: #636F68;
    --card-text: #FFFFFF;
    --kokiki-color: rgb(99, 111, 104);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-color);
    background-color: var(--background-color);
}

h1, h2, h3, h4, h5, h6,
.display-4 {
    font-family: 'Roboto Slab', serif;
    font-weight: 100;
}

.btn-primary {
    background-color: var(--kokiki-color);
    border-color: var(--kokiki-color);
    font-family: 'Roboto Slab', serif;
    font-weight: 400;
    font-size: 1.25rem;
    padding: 1rem 2.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--kokiki-color);
    border-color: var(--kokiki-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.2);
}

.feature-card {
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    height: 100%;
    transition: transform 0.2s;
    background-color: var(--card-background);
    color: var(--card-text);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.footer {
    background-color: #f8f9fa;
    padding: 1rem 0;
}

.footer a {
    color: var(--text-color);
    text-decoration: none;
    margin: 0 1rem;
}

.footer a:hover {
    color: var(--primary-color);
}

.hero {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.brand-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 2rem 1rem;
    }
    
    .feature-card {
        margin-bottom: 1rem;
    }
}

.content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 100;
}

.content h3 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 400;
}

.content ul {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.content ul li {
    margin-bottom: 0.5rem;
}