:root {
    --bg-color: #ffffff;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --accent-color: #2563eb;
    --accent-color-dark: #1e40af;
    --glass-bg: #f9fafb;
    --glass-border: #e5e7eb;
    --glass-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Background Effects - Simplified for Light Theme */
.background-effects {
    display: none;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography Links */
h1,
h2,
h3 {
    line-height: 1.3;
}

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

.external-link {
    color: var(--accent-color);
    border-bottom: 1px dotted var(--accent-color);
}

.external-link:hover {
    color: var(--accent-color-dark);
    border-bottom-color: var(--accent-color-dark);
}

/* Top Navigation */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    padding: 16px 0;
}

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

.nav-brand {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    gap: 24px;
}

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

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

/* Hero Section */
.hero {
    padding: 160px 0 80px;
    display: flex;
    align-items: center;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 60px;
    width: 100%;
}

.hero-text {
    flex: 1.2;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 224, 255, 0.08);
    border: 1px solid rgba(0, 224, 255, 0.2);
    border-radius: 30px;
    color: var(--accent-color);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.title {
    font-size: 3.2rem;
    font-weight: 900;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.subtitle {
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: block;
    margin-top: 8px;
}

.tagline {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 400;
}

/* Buttons */
.cta-group {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    cursor: pointer;
    font-size: 1.05rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color-dark) 0%, var(--accent-color) 100%);
    color: #fff;
    box-shadow: 0 8px 20px rgba(32, 113, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(32, 113, 255, 0.4);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Image styling */
.hero-image {
    flex: 1;
    max-width: 360px;
    margin: 0 auto;
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--glass-border);
    transition: transform 0.5s ease;
}

.hero-image:hover {
    transform: translateY(-5px);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Glass Section */
.glass-section {
    max-width: 880px;
    margin-left: auto;
    margin-right: auto;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    padding: 60px;
    margin-bottom: 60px;
    box-shadow: var(--glass-shadow);
    transition: transform 0.3s ease, background 0.3s ease;
}

.glass-section:hover {
    background: #ffffff;
    border-color: #d1d5db;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 40px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 20px;
}

.en-title {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.intro {
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 40px;
    line-height: 1.8;
}

/* Policy lists */
.policy-item {
    margin-bottom: 40px;
}

.policy-item:last-child {
    margin-bottom: 0;
}

.policy-item h3 {
    font-size: 1.3rem;
    color: var(--accent-color);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    font-weight: 600;
}

.policy-item p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.05rem;
    padding-left: 24px;
}

.contact-link-wrapper {
    margin-top: 40px;
    padding: 30px;
    border-top: 1px solid var(--glass-border);
}

.btn-outline {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 500;
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer;
    font-size: 1rem;
    background: transparent;
    border: 1px solid #d1d5db;
    color: var(--text-secondary);
}

.btn-outline:hover {
    background: #f3f4f6;
    color: var(--text-primary);
    border-color: #9ca3af;
}

.note {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 20px;
}

.gallery-item {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.gallery-item:hover {
    transform: translateY(-10px) scale(1.03);
    border-color: rgba(255, 255, 255, 0.2);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Footer */
footer {
    text-align: center;
    padding: 60px 0;
    border-top: 1px solid var(--glass-border);
    margin-top: 80px;
    background: #f9fafb;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.date {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    padding: 8px 24px;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links {
    margin-bottom: 8px;
}

/* Animations Scroll / Fade-up */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.15s;
}

.delay-2 {
    transition-delay: 0.3s;
}

/* Responsive Adjustments */
@media (max-width: 800px) {
    .hero {
        padding: 100px 0 60px;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }

    .cta-group {
        justify-content: center;
    }

    .hero-image {
        transform: none;
    }

    .hero-image:hover {
        transform: scale(1.02);
    }

    .title {
        font-size: 2.5rem;
    }

    .glass-section {
        padding: 40px 24px;
        border-radius: 24px;
    }

    .section-title {
        font-size: 1.8rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .policy-item p {
        padding-left: 0;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .glass-section {
        padding: 30px 20px;
    }

    .nav-links {
        display: none;
        /* Hide on very small screens for simplicity, or we could add a hamburger menu */
    }

    .cta-group {
        flex-direction: column;
    }

    .btn-outline {
        width: 100%;
        font-size: 1.1rem;
        padding: 14px;
    }
}

/* Pitch Deck Section Styling */
.text-center {
    text-align: center;
}

.pitch-deck-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pitch-deck-container .intro {
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.pitch-deck-gallery {
    display: flex;
    flex-direction: column;
    gap: 40px;
    width: 100%;
    max-width: 800px;
}

.pitch-deck-img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--glass-border);
    transition: transform 0.3s ease;
}

.pitch-deck-img:hover {
    transform: translateY(-5px);
}

@media (max-width: 600px) {
    .pitch-deck-gallery {
        gap: 20px;
    }
}