:root {
    --ink-blue: #2E4F6B;
    --washi-beige: #F5F1E8;
    --sakura-coral: #E8A5A0;
    --graphite-gray: #4A5568;
    --white: #FFFFFF;
    --light-gray: #F7FAFC;
    --text-dark: #2D3748;
    --text-medium: #4A5568;
    --text-light: #718096;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: var(--white);
    border-bottom: 1px solid var(--washi-beige);
    padding: 1rem 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--ink-blue);
}

.back-link {
    color: var(--ink-blue);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border: 2px solid var(--ink-blue);
    border-radius: 6px;
}

.back-link:hover {
    background-color: var(--ink-blue);
    color: var(--white);
}

/* Main Content */
.main {
    flex: 1;
    padding: 3rem 0;
}

.page-header {
    background-color: var(--light-gray);
    padding: 3rem 0;
    margin-bottom: 3rem;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--ink-blue);
    text-align: center;
}

.content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.content-block {
    background-color: var(--white);
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.content-block h2 {
    font-size: 1.5rem;
    color: var(--ink-blue);
    margin-bottom: 1rem;
}

.content-block p {
    color: var(--text-medium);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.content-block ul {
    color: var(--text-medium);
    margin-left: 1.5rem;
}

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

.content-image {
    margin: 2rem 0;
    text-align: center;
}

.content-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.content-illustration {
    margin: 2rem 0;
    text-align: center;
}

.content-illustration svg {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.empty-content {
    background-color: var(--washi-beige);
    border: 2px dashed var(--sakura-coral);
    padding: 3rem;
    text-align: center;
    color: var(--text-medium);
    border-radius: 12px;
    font-style: italic;
}

/* Footer */
.footer {
    background-color: var(--graphite-gray);
    color: var(--washi-beige);
    padding: 3rem 0 1rem;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo-container {
    margin-bottom: 1rem;
}

.footer-brand .brand-name {
    color: var(--washi-beige);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.footer-column h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--washi-beige);
    text-decoration: none;
}

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

.footer-bottom {
    border-top: 1px solid #5A6B7D;
    padding-top: 1rem;
    text-align: center;
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .content-block {
        padding: 1.5rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .content-block {
        padding: 1.5rem;
    }
}