@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;700&family=Noto+Sans+JP:wght@300;700&display=swap');

:root {
    --star-color: #ffffff;
    --deep-space: #0a0e1a;
    --space-blue: #1b2735;
    --accent-blue: #4facfe;
    --accent-purple: #6a11cb;
}

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

body {
    height: 100vh;
    background: linear-gradient(135deg, var(--deep-space) 0%, #000000 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Montserrat', sans-serif;
    color: white;
}

.container {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 2rem;
}



.title {
    font-weight: 700;
    letter-spacing: 0.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    position: relative;
}

.title {
    color: var(--star-color);
    font-size: 4rem;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.7),
                 0 0 20px rgba(255, 255, 255, 0.5),
                 0 0 30px rgba(79, 172, 254, 0.5);
    animation: title-glow 3s ease-in-out infinite alternate;
}



.subtitle {
    font-size: 1.2rem;
    opacity: 0.8;
    letter-spacing: 3px;
    margin-bottom: 2rem;
    font-weight: 300;
    animation: subtitle-fade 5s ease-in-out infinite alternate;
}

@keyframes title-glow {
    0% {
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.7),
                    0 0 20px rgba(255, 255, 255, 0.5),
                    0 0 30px rgba(79, 172, 254, 0.5);
    }
    100% {
        text-shadow: 0 0 15px rgba(255, 255, 255, 0.9),
                    0 0 25px rgba(255, 255, 255, 0.7),
                    0 0 35px rgba(79, 172, 254, 0.7),
                    0 0 45px rgba(79, 172, 254, 0.5);
    }
}


/* GitHub Button */
.github-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(10, 14, 26, 0.8) 0%, rgba(0, 0, 0, 0.9) 100%);
    color: white;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 15px rgba(79, 172, 254, 0.4),
                inset 0 0 10px rgba(106, 17, 203, 0.2);
}

.github-button:before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.6s ease;
    transform: translate3d(0, 0, 0);
    pointer-events: none;
}

.github-button:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 0 20px rgba(79, 172, 254, 0.6),
                inset 0 0 15px rgba(106, 17, 203, 0.3);
}

.github-button:hover:before {
    opacity: 1;
    animation: ripple 1.5s ease-out;
}

.github-icon {
    font-size: 1.3rem;
    margin-right: 0.5rem;
}

.github-text {
    position: relative;
    z-index: 2;
}

.star-trail {
    position: absolute;
    height: 100%;
    width: 100%;
    left: 0;
    top: 0;
    pointer-events: none;
    z-index: 1;
}

.github-button:hover .star-trail:after {
    content: '';
    position: absolute;
    height: 5px;
    width: 5px;
    border-radius: 50%;
    background-color: white;
    opacity: 0;
    animation: trail 0.6s ease-out;
    box-shadow: 0 0 6px 2px rgba(255, 255, 255, 0.8);
}

.github-button:hover .star-trail:before {
    content: '';
    position: absolute;
    height: 3px;
    width: 3px;
    top: 60%;
    left: 20%;
    border-radius: 50%;
    background-color: white;
    opacity: 0;
    animation: trail 0.8s ease-out 0.1s;
    box-shadow: 0 0 6px 2px rgba(79, 172, 254, 0.8);
}




@media (max-width: 768px) {
    .title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
}