/* エデュテックジャパン - オンライン学習プラットフォーム */
/* Global Styles */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
    --primary-color: #22A45D;
    --primary-dark: #1a8249;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-hover: 0 8px 15px rgba(0,0,0,0.15);
    --disclaimer-bg: #8B2E2E;
}

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

body {
    font-family: 'Poppins', sans-serif;
    font-weight: 300;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

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

p, .content-text {
    max-width: 700px;
    margin: 0 auto 1.5rem;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Disclaimer Banner */
.disclaimer-banner {
    background-color: var(--disclaimer-bg);
    color: var(--white);
    padding: 15px 20px;
    text-align: center;
    font-size: 0.9rem;
    line-height: 1.5;
    position: relative;
    z-index: 999;
}

.disclaimer-banner strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 5px;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 1rem 0;
}

header.scrolled {
    background-color: var(--white);
    box-shadow: var(--shadow);
}

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

.logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

nav ul li a {
    color: var(--text-dark);
    font-weight: 400;
    padding: 0.5rem 0;
    position: relative;
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

nav ul li a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--white);
    padding: 100px 20px 60px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(34, 164, 93, 0.8) 0%, rgba(26, 130, 73, 0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    font-weight: 400;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background-color: transparent;
    color: var(--white);
}

.btn-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Sections */
section {
    padding: 80px 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-light);
}

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

.card {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    text-align: center;
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.card h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Stats Section */
.stats {
    background-color: var(--primary-color);
    color: var(--white);
}

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

.stat-item h3 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 1.1rem;
    font-weight: 400;
}

/* Content Section */
.content-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.content-image img {
    border-radius: 12px;
    box-shadow: var(--shadow);
    width: 100%;
}

.content-text h2 {
    margin-bottom: 1.5rem;
}

.content-text ul {
    list-style: none;
    margin: 1.5rem 0;
}

.content-text ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.content-text ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

/* CTA Section */
.cta-section {
    background-color: var(--bg-light);
    text-align: center;
    padding: 80px 20px;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta-section p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.blog-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.blog-card-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-card-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.blog-card h3 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.blog-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

/* Blog Article */
.article-header {
    text-align: center;
    padding: 120px 20px 40px;
    background-color: var(--bg-light);
}

.article-header h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--text-light);
    font-size: 0.95rem;
}

.article-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    margin: 2rem 0;
    border-radius: 12px;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 20px;
}

.article-content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.article-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.related-articles {
    background-color: var(--bg-light);
    padding: 60px 20px;
}

/* Contact Form */
.contact-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    padding: 2rem;
}

.contact-info h2 {
    margin-bottom: 2rem;
}

.contact-info-item {
    display: flex;
    align-items: start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-info-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.contact-form {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 400;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Map */
.map-container {
    margin: 3rem 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map-container iframe {
    width: 100%;
    height: 400px;
    border: none;
}

/* FAQ */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.faq-question {
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.faq-answer {
    color: var(--text-light);
    line-height: 1.8;
}

/* Privacy & Terms */
.legal-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 120px 20px 40px;
}

.legal-content h1 {
    margin-bottom: 2rem;
}

.legal-content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.legal-content p {
    margin-bottom: 1.5rem;
}

.legal-content ul {
    margin: 1rem 0 1.5rem 2rem;
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: var(--white);
    padding: 60px 20px 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.footer-section p,
.footer-section a {
    color: #ccc;
    font-size: 0.95rem;
    line-height: 1.8;
}

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

.footer-links {
    list-style: none;
}

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

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

.social-links a:hover {
    background-color: var(--primary-dark);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #999;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.95);
    color: var(--white);
    padding: 20px;
    z-index: 9999;
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-banner .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookie-banner p {
    margin: 0;
    flex: 1;
}

.cookie-banner a {
    color: var(--primary-color);
    text-decoration: underline;
}

.cookie-banner button {
    padding: 10px 30px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1.1rem; }
    
    nav ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        box-shadow: var(--shadow);
        padding: 1rem;
    }
    
    nav ul.show {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .content-section,
    .contact-section {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .section-title h2 { font-size: 2rem; }
    
    .cookie-banner .container {
        flex-direction: column;
        text-align: center;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1025px) {
    .cards-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}