:root {
    --primary-color: #0A192F; /* Deep Navy */
    --accent-color: #0066CC; /* Subtle Blue */
    --text-main: #333333;
    --text-muted: #666666;
    --bg-light: #F5F7FA;
    --white: #FFFFFF;
    --border-color: #E2E8F0;
    --border-radius: 4px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-speed);
}

a:hover {
    text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-bg {
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

/* Header */
header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 40px;
    display: block;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: var(--text-main);
    font-weight: 500;
}

.nav-links a:hover {
    text-decoration: none;
    color: var(--accent-color);
}

.header-cta {
    background-color: var(--accent-color);
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
}

.header-cta:hover {
    background-color: #0052a3;
    text-decoration: none;
}

/* Hero Section */
.hero {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-content h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: #cbd5e1;
}

.hero-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.btn-primary {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    padding: 14px 32px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1.1rem;
    transition: background-color var(--transition-speed);
}

.btn-primary:hover {
    background-color: #0052a3;
    color: var(--white);
    text-decoration: none;
}

.btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: var(--white);
    border: 1px solid var(--white);
    padding: 14px 32px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1.1rem;
    margin-left: 15px;
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.1);
    text-decoration: none;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
    padding: 40px 20px;
    border-right: 1px solid var(--border-color);
}

.stat-item:last-child {
    border-right: none;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

.learn-more {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
}

.learn-more::after {
    content: '→';
    margin-left: 5px;
    transition: margin var(--transition-speed);
}

.learn-more:hover::after {
    margin-left: 10px;
}

/* Tech Stack */
.tech-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.tech-item {
    background: var(--white);
    border: 1px solid var(--border-color);
    padding: 15px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    color: var(--primary-color);
}

/* Case Studies */
.case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.case-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.case-content {
    padding: 30px;
}

.case-tag {
    display: inline-block;
    background-color: var(--bg-light);
    color: var(--text-muted);
    padding: 4px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 15px;
}

.case-content h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.case-content p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* Contact Section with Map */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
}

.contact-info h3 {
    color: var(--white);
}

.contact-item {
    margin-bottom: 25px;
}

.contact-label {
    font-size: 0.85rem;
    color: #cbd5e1;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-value {
    font-size: 1.1rem;
    font-weight: 500;
}

.contact-value a {
    color: var(--white);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    min-height: 400px;
    border: 0;
    border-radius: var(--border-radius);
}

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.blog-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.blog-image {
    height: 200px;
    background-color: var(--primary-color);
}

.blog-content {
    padding: 25px;
    flex-grow: 1;
}

.blog-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: block;
}

.blog-content h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.blog-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

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

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

.content-wrapper h2 {
    margin-top: 2rem;
}

.content-wrapper ul {
    margin-bottom: 1.5rem;
    padding-left: 20px;
}

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

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: #cbd5e1;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo img {
    height: 30px;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer-title {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #cbd5e1;
    font-size: 0.9rem;
}

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

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 15px;
    font-size: 0.9rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.legal-links {
    display: flex;
    gap: 20px;
}

.legal-links a {
    color: #cbd5e1;
}

.legal-links a:hover {
    color: var(--white);
}

/* Compliance Text */
.compliance-text {
    font-size: 0.85rem;
    color: #8fa0b5;
    margin-top: 15px;
}

.compliance-text a {
    color: #8fa0b5;
    text-decoration: underline;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    max-width: 420px;
    width: 90%;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    z-index: 9999;
    display: none;
}

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

.cookie-banner h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.cookie-banner p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.cookie-buttons {
    display: flex;
    gap: 10px;
}

.btn-cookie {
    flex: 1;
    padding: 8px;
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
}

.btn-accept {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
}

.btn-decline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-inner, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-item:nth-child(2) {
        border-right: none;
    }
    
    .stat-item:nth-child(1), .stat-item:nth-child(2) {
        border-bottom: 1px solid var(--border-color);
    }
    
    .services-grid, .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .services-grid, .case-grid, .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .stat-item:last-child {
        border-bottom: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}