:root {
    --bg-color: #0d0d12;
    --card-bg: #1a1a24;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-purple: #8b5cf6;
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    --gradient-glass: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
}

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

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

/* Background Effect */
.background-glob {
    position: fixed;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    animation: pulse 10s infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.2); opacity: 0.8; }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    padding: 24px 0;
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(13, 13, 18, 0.8);
    backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo img {
    width: 32px;
    height: 32px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 99px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(6, 182, 212, 0.4);
}

.btn-windows {
    background: #0078d4;
    color: white;
}

.btn-windows:hover {
    background: #0d8df3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.4);
}

.btn-android {
    background: #3DDC84;
    color: #0b2e1b;
}

.btn-android:hover {
    background: #4ef096;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(61, 220, 132, 0.4);
}

/* Hero Section */
.hero {
    padding-top: 160px;
    padding-bottom: 80px;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 320px;
}

.version-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 16px;
    opacity: 0.7;
}

/* Hero Visual Animation */
.hero-visual {
    display: flex;
    justify-content: center;
}

.app-card-glass {
    width: 320px;
    height: 320px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    backdrop-filter: blur(20px);
    box-shadow: 0 40px 80px rgba(0,0,0,0.5);
    overflow: hidden;
}

.app-icon-large {
    width: 120px;
    height: 120px;
    border-radius: 24px;
    z-index: 2;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.scan-animation {
    position: absolute;
    width: 400px;
    height: 400px;
    background: conic-gradient(from 0deg, transparent 0deg, rgba(6, 182, 212, 0.2) 60deg, transparent 100deg);
    animation: radar-spin 4s linear infinite;
    border-radius: 50%;
    z-index: 1;
}

@keyframes radar-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.status-indicator {
    margin-top: 24px;
    font-family: monospace;
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 2;
}

.dot {
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: blink 1s infinite;
}

@keyframes blink {
    50% { opacity: 0.3; }
}

/* Features Section */
.features {
    padding: 100px 0;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    padding: 32px;
    border-radius: 24px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255,255,255,0.1);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.bg-blue { background: rgba(59, 130, 246, 0.2); color: var(--accent-blue); }
.bg-purple { background: rgba(139, 92, 246, 0.2); color: var(--accent-purple); }
.bg-green { background: rgba(16, 185, 129, 0.2); color: #10b981; }
.bg-orange { background: rgba(245, 158, 11, 0.2); color: #f59e0b; }

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

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

/* CTA */
.cta {
    padding: 100px 0;
    text-align: center;
}

.cta-content {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    padding: 60px;
    border-radius: 32px;
    border: 1px solid rgba(255,255,255,0.1);
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cta p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid rgba(255,255,255,0.05);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero-buttons {
        margin: 0 auto;
        width: 100%;
    }
    
    .hero-visual {
        margin-top: 48px;
    }
}