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

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s;
}

nav a:hover {
    background-color: rgba(255,255,255,0.1);
}

main {
    min-height: 80vh;
}

section {
    padding: 4rem 0;
}

section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: #1e3c72;
}

section p {
    font-size: 1.1rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2rem;
    color: #666;
}

#home {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 6rem 0;
}

#home h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: white;
}

#home p {
    font-size: 1.3rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 3rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    margin: 0 1rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.btn-primary {
    background: #ff6b6b;
    color: white;
}

.btn-primary:hover {
    background: #ff5252;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255,107,107,0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: white;
    color: #667eea;
}

/* 市場動向セクション */
#market {
    background: white;
}

.market-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.market-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

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

.market-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1e3c72;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #333;
}

.change {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.change.positive {
    color: #28a745;
}

.change.negative {
    color: #dc3545;
}

/* 銘柄分析セクション */
#analysis {
    background: #f8f9fa;
}

.stock-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stock-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.stock-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.stock-header h3 {
    font-size: 1.3rem;
    color: #1e3c72;
}

.sector {
    background: #e3f2fd;
    color: #1976d2;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.stock-price {
    margin-bottom: 1.5rem;
}

.current-price {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
}

.price-change {
    font-size: 1rem;
    font-weight: 600;
    margin-left: 1rem;
}

.stock-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric {
    text-align: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 10px;
}

.metric .label {
    display: block;
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.metric .value {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: #1e3c72;
}

.stock-description {
    color: #666;
    line-height: 1.6;
}

/* 投資戦略セクション */
#strategy {
    background: white;
}

.strategy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.strategy-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

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

.strategy-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.strategy-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1e3c72;
}

.strategy-card p {
    color: #666;
    margin-bottom: 1.5rem;
    text-align: left;
}

.strategy-card ul {
    list-style: none;
    text-align: left;
}

.strategy-card li {
    padding: 0.5rem 0;
    color: #666;
    position: relative;
    padding-left: 1.5rem;
}

.strategy-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

/* 投資教育セクション */
#education {
    background: #f8f9fa;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.education-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.education-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #1e3c72;
    text-align: center;
}

.education-content h4 {
    font-size: 1.2rem;
    margin: 1.5rem 0 0.5rem;
    color: #333;
}

.education-content p {
    color: #666;
    margin-bottom: 1rem;
    text-align: left;
}

/* ニュースセクション */
#news {
    background: white;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.news-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.news-date {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #1e3c72;
}

.news-card p {
    color: #666;
    margin-bottom: 1.5rem;
    text-align: left;
}

.read-more {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.read-more:hover {
    color: #5a6fd8;
}

/* 会社概要セクション */
#about {
    background: #f8f9fa;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #1e3c72;
}

.about-text h4 {
    font-size: 1.3rem;
    margin: 2rem 0 1rem;
    color: #333;
}

.about-text p {
    color: #666;
    margin-bottom: 1rem;
    text-align: left;
}

.about-text ul {
    list-style: none;
    margin: 1rem 0;
}

.about-text li {
    padding: 0.5rem 0;
    color: #666;
    position: relative;
    padding-left: 1.5rem;
}

.about-text li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

footer {
    background: #1e3c72;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: rgba(255,255,255,0.8);
    margin-bottom: 0.5rem;
}

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

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

.footer-section a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.disclaimer-section {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    border-left: 4px solid #ff6b6b;
}

.disclaimer-section h4 {
    color: #ff6b6b;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.disclaimer-section p {
    color: rgba(255,255,255,0.9);
    margin-bottom: 1rem;
    font-weight: 600;
}

.disclaimer-section ul {
    list-style: none;
    margin: 0;
}

.disclaimer-section li {
    color: rgba(255,255,255,0.8);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.disclaimer-section li:before {
    content: "⚠️";
    position: absolute;
    left: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    margin-left: 2rem;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav a {
        display: block;
        text-align: center;
    }
    
    #home h2 {
        font-size: 2rem;
    }
    
    #home p {
        font-size: 1.1rem;
    }
    
    .btn {
        display: block;
        margin: 1rem auto;
        max-width: 200px;
    }
    
    .market-grid,
    .stock-grid,
    .strategy-grid,
    .education-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .stock-metrics {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer-links a {
        margin: 0 1rem;
    }
    
    .disclaimer-section {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 2rem 0;
    }
    
    section h2 {
        font-size: 2rem;
    }
    
    .market-card,
    .stock-card,
    .strategy-card,
    .education-card,
    .news-card {
        padding: 1.5rem;
    }
    
    .price {
        font-size: 2rem;
    }
    
    .current-price {
        font-size: 1.5rem;
    }
}