/* Genel Ayarlar */
:root {
    --text-color: #e0f2f7; /* Açık mavi-beyaz */
    --glow-color: #8be9fd; /* Neon mavi */
    --bg-dark: #0a0e1a; /* Çok koyu uzay mavisi */
    --font-main: 'Roboto', sans-serif;
}

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--text-color);
    overflow: hidden; /* Sayfanın taşmasını engeller */
    height: 100vh; /* Tam ekran yüksekliği */
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* Uzay Arka Plan Animasyonları */
.stars, .twinkling, .clouds {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    display: block;
}

.stars {
    background: #000 url('https://www.transparenttextures.com/patterns/stars.png') repeat top center;
    z-index: -3;
}

.twinkling {
    background: transparent url('https://www.transparenttextures.com/patterns/stardust.png') repeat top center;
    z-index: -2;
    animation: move-twink-back 200s linear infinite;
}

.clouds {
    background: transparent url('https://www.transparenttextures.com/patterns/purty-wood.png') repeat top center; /* Bulut yerine daha soyut bir desen */
    z-index: -1;
    opacity: 0.1; /* Daha hafif görünsün */
    animation: move-clouds-back 200s linear infinite;
}

@keyframes move-twink-back {
    from { background-position: 0 0; }
    to { background-position: -10000px 5000px; }
}

@keyframes move-clouds-back {
    from { background-position: 0 0; }
    to { background-position: 10000px 0; }
}

/* İçerik Ortalaması ve Metin Stilleri */
.content-wrapper {
    text-align: center;
    position: relative;
    z-index: 10; /* Arka planın önünde olsun */
    animation: fadeInScale 2s ease-out forwards; /* Başlangıç animasyonu */
}

.glow-text {
    font-size: 5rem; /* Büyük ve dikkat çekici */
    font-weight: 700;
    margin: 0;
    letter-spacing: 5px;
    text-shadow: 0 0 10px var(--glow-color),
                 0 0 20px var(--glow-color),
                 0 0 30px var(--glow-color),
                 0 0 40px var(--glow-color);
    animation: pulsateGlow 2s infinite alternate; /* Parlama efekti */
}

.subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-top: 10px;
    opacity: 0;
    animation: fadeInSlideUp 1.5s ease-out 1s forwards; /* Gecikmeli giriş animasyonu */
}

/* Animasyonlar */
@keyframes fadeInScale {
    0% { opacity: 0; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes pulsateGlow {
    0% { text-shadow: 0 0 10px var(--glow-color), 0 0 20px var(--glow-color); }
    100% { text-shadow: 0 0 20px var(--glow-color), 0 0 40px var(--glow-color), 0 0 60px var(--glow-color); }
}

@keyframes fadeInSlideUp {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Mobil Uyumluluk */
@media (max-width: 768px) {
    .glow-text {
        font-size: 3rem;
        letter-spacing: 3px;
    }
    .subtitle {
        font-size: 1rem;
    }
}