/* --- Genel Sıfırlama ve Temel Ayarlar --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    color: #ffffff;
    background: linear-gradient(-45deg, #ff7f50, #cd4f77, #944021, #210e07);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden; /* Yatay kaydırmayı engelle */
}

/* --- Arka Plan Animasyonu --- */
@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* --- Ana İçerik Alanı --- */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    text-align: center;
}

.site-title {
    font-size: 3.5rem;
    font-weight: 700;
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    margin-bottom: 0.5rem;
}

.site-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 4rem;
}

/* --- Uygulama Kartları Grid Yapısı --- */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

/* --- Camsı Tasarım Kartları (Glassmorphism) --- */
.glass-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px); /* Safari desteği */
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    padding: 2rem;
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.glass-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 16px 40px 0 rgba(0, 0, 0, 0.4);
}

.card-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.card-description {
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
    flex-grow: 1; /* Butonun her zaman altta kalmasını sağlar */
    margin-bottom: 2rem;
}

.card-button {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: background-color 0.3s ease;
}

.card-button:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

/* --- Footer --- */
.footer {
    text-align: center;
    padding: 2rem;
    color: rgba(255, 255, 255, 0.6);
}

/* --- Mobil Cihazlar için Ayarlamalar --- */
@media (max-width: 768px) {
    .site-title {
        font-size: 2.5rem;
    }
    .site-subtitle {
        font-size: 1rem;
    }
    .main-container {
        padding: 3rem 1rem;
    }
}