/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 60px;
    padding: 40px 0;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.logo i {
    font-size: 3rem;
    color: #fff;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}

.logo h1 {
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.intro-section {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.creator-intro {
    font-size: 1.3rem;
    color: rgba(255,255,255,0.95);
    font-weight: 500;
    margin-bottom: 20px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 20px 30px;
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.2);
}

.subtitle {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.9);
    font-weight: 400;
    line-height: 1.6;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    padding: 25px 30px;
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.15);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.language-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 20px;
}

.language-card {
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.language-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4CAF50, #45a049);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.language-card:hover::before {
    transform: scaleX(1);
}

.language-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.japanese-card:hover {
    transform: translateY(-5px);
    cursor: not-allowed;
}

.card-icon {
    margin-bottom: 20px;
}

.card-icon i {
    font-size: 3.5rem;
    color: #667eea;
}

.language-card h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.language-card p {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.5;
}

.card-arrow {
    margin-top: 10px;
}

.card-arrow i {
    font-size: 1.2rem;
    color: #667eea;
    transition: transform 0.3s ease;
}

.language-card:hover .card-arrow i {
    transform: translateX(10px);
}

.coming-soon {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(45deg, #ff6b6b, #ee5a6f);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(255,107,107,0.3);
}

.japanese-card {
    opacity: 0.7;
    position: relative;
}

/* Support Message */
.support-message {
    display: flex;
    justify-content: center;
}

.support-card {
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    max-width: 600px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.support-card i {
    font-size: 2.5rem;
    color: #ff6b6b;
    margin-bottom: 20px;
}

.support-card h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
}

.support-card p {
    color: #666;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 0;
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
}

.footer i {
    color: #ff6b6b;
    margin: 0 5px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header {
        margin-bottom: 40px;
        padding: 20px 0;
    }
    
    .logo h1 {
        font-size: 2.5rem;
    }
    
    .logo i {
        font-size: 2.5rem;
    }
    
    .intro-section {
        max-width: 100%;
    }
    
    .creator-intro {
        font-size: 1.2rem;
        padding: 18px 25px;
    }
    
    .subtitle {
        font-size: 1rem;
        padding: 20px 25px;
    }
    
    .language-selection {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .language-card {
        padding: 30px 20px;
    }
    
    .language-card h2 {
        font-size: 1.6rem;
    }
    
    .language-card p {
        font-size: 1rem;
    }
    
    .support-card {
        padding: 30px 20px;
    }
    
    .support-card h3 {
        font-size: 1.6rem;
    }
    
    .support-card p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .logo {
        flex-direction: column;
        gap: 10px;
        margin-bottom: 25px;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
    
    .logo i {
        font-size: 2rem;
    }
    
    .creator-intro {
        font-size: 1.1rem;
        padding: 15px 20px;
    }
    
    .subtitle {
        font-size: 0.95rem;
        padding: 18px 20px;
    }
    
    .card-icon i {
        font-size: 3rem;
    }
    
    .language-card h2 {
        font-size: 1.4rem;
    }
    
    .support-card {
        margin: 0 10px;
    }
}

/* Animation for smooth loading */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.language-card, .support-card {
    animation: fadeInUp 0.6s ease forwards;
}

.language-card:nth-child(2) {
    animation-delay: 0.2s;
}