:root {
    /* Friendlier Green Theme */
    --primary-color: #059669;
    /* Emerald 600 - Brighter, friendlier green */
    --secondary-color: #065f46;
    /* Emerald 800 - Contrast */
    --accent-color: #a3e635;
    /* Lime 400 - Playful accent */
    --text-color: #334155;
    --light-bg: #f0fdf4;
    --white: #ffffff;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Noto Sans JP', sans-serif;
    --border-radius: 24px;
    /* Soft, large radius */
}

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

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
    scroll-behavior: smooth;
}

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

ul {
    list-style: none;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 0;
    z-index: 1000;
    transition: background 0.3s, padding 0.3s;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 0.8rem 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--white);
}

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

.nav ul {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: var(--white);
    font-weight: 500;
    font-size: 0.95rem;
}

.header.scrolled .nav a {
    color: var(--text-color);
}

.nav a:hover {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    background-color: var(--primary-color);
    /* Fallback */
    text-align: center;
    overflow: hidden;
}

/* Slideshow */
.hero-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 3s ease-in-out;
}

.slide.active {
    opacity: 0.25;
}

/* Pop Pattern Overlay */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(5, 150, 105, 0.4), rgba(6, 95, 70, 0.6));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-subtitle {
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    color: var(--accent-color);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    line-height: 1.2;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.hero-info {
    display: inline-flex;
    flex-direction: column;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1.5rem 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 2.5rem;
    text-align: left;
}

.hero-info p {
    font-size: 1.1rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.badge {
    background: var(--accent-color);
    color: var(--primary-color);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    flex-shrink: 0;
    margin-top: 3px;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 3rem;
    background: var(--accent-color);
    color: var(--primary-color);
    font-weight: 700;
    border-radius: 50px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 14px rgba(251, 191, 36, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(251, 191, 36, 0.6);
}

.btn-secondary {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: var(--white);
    color: var(--primary-color);
    font-weight: 700;
    border-radius: 50px;
    border: 2px solid var(--primary-color);
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

/* Sections General */
.section {
    padding: 5rem 0;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 10px auto 0;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    margin-top: -2rem;
    margin-bottom: 3rem;
    color: #64748b;
}

/* Target Grid */
.target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.target-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s;
    border: 1px solid #e2e8f0;
}

.target-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.main-target {
    border-color: var(--accent-color);
    background: linear-gradient(to bottom right, #fffbeb, #ffffff);
}

.main-target h4 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.sub-target h4 {
    color: #64748b;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

/* Details List */
.details-list {
    display: grid;
    gap: 2rem;
    background: var(--white);
}

.detail-item {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    align-items: flex-start;
}

.detail-icon {
    font-size: 2rem;
    background: #f1f5f9;
    padding: 1rem;
    border-radius: 50%;
    line-height: 1;
}

.detail-content h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* Companies Grid */
.companies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.company-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    min-height: 150px;
}

.company-logo {
    font-weight: bold;
    color: #cbd5e1;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

/* Map */
.map-container {
    width: 100%;
    height: 400px;
    background: #e2e8f0;
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder p {
    color: #64748b;
    font-weight: 500;
}

/* Contact */
.contact-section {
    text-align: center;
}

.contact-box {
    background: var(--primary-color);
    color: var(--white);
    padding: 3rem;
    border-radius: var(--border-radius);
    display: inline-block;
    min-width: 300px;
    max-width: 100%;
}

.contact-dept {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: #94a3b8;
    text-align: center;
    padding: 2rem 0;
    font-size: 0.9rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav ul {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-info {
        padding: 1rem;
    }

    .hero-info p {
        font-size: 0.95rem;
    }

    .detail-item {
        flex-direction: column;
    }
}