@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

:root {
    --primary-color: #003366; /* Deep Corporate Navy */
    --secondary-color: #0055A4; /* Brighter Blue */
    --background-color: #F8F9FA;
    --surface-color: #FFFFFF;
    --text-primary: #333333;
    --text-secondary: #666666;
    --border-color: #E5E7EB;
    --font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    -webkit-font-smoothing: antialiased;
    padding-top: 70px; /* Space for fixed navbar */
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    font-weight: 700;
}

p {
    color: var(--text-secondary);
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    z-index: 1000;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color) !important;
}

.logo span {
    color: var(--primary-color);
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary) !important;
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
}

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

/* Hero Section */
.hero {
    height: 70vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    background-color: var(--primary-color);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=2000&q=80');
    background-size: cover;
    background-position: center;
    opacity: 0.3;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 2rem;
}

.hero h1 {
    font-size: 3rem;
    color: #FFFFFF;
    margin-bottom: 1.5rem;
    line-height: 1.3;
    letter-spacing: 2px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.25rem;
    color: #FFFFFF;
    font-weight: 400;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* Sections */
.section {
    padding: 5rem 2rem;
    background-color: var(--surface-color);
}

.section:nth-child(even) {
    background-color: var(--background-color);
}

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

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 1rem auto 0;
}

/* Grid & Cards */
.services-grid, .about-grid, .product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 500px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.service-card, .about-item, .feature-item, .product-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2.5rem 2rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover, .about-item:hover, .feature-item:hover, .product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.service-card i, .about-item i, .feature-item i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.service-card h3, .about-item h3, .feature-item h4, .product-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Contact & Forms */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

.contact-form {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2.5rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #CCCCCC;
    border-radius: 4px;
    font-family: var(--font-family);
    transition: border-color 0.3s;
}

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

.submit-btn {
    background-color: var(--primary-color);
    color: #FFFFFF;
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
    width: 100%;
}

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

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: #FFFFFF;
    padding: 3rem 0;
}

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

.footer-links a {
    color: #FFFFFF;
    opacity: 0.8;
}

.footer-links a:hover {
    opacity: 1;
    color: #FFFFFF;
}

.separator {
    color: rgba(255,255,255,0.3);
    margin: 0 0.5rem;
}

/* Dropdown */
.dropdown {
    position: relative;
    display: inline-block;
}

.site-select {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.4rem 1rem;
    border-radius: 4px;
    font-family: var(--font-family);
    cursor: pointer;
}

/* Partners */
.partner-section {
    background: var(--surface-color);
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
}
.partner-title {
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 2rem;
    font-size: 1.5rem;
}
.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
}
.partner-logos img {
    height: 50px;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all 0.3s;
}
.partner-logos img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* Subpages General */
.page-header {
    background-color: var(--background-color);
    padding: 4rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}
.page-header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* In a real app we'd add a hamburger menu */
    }
    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; text-align: center; }
}