/* Sayfa Genel Ayarları */
body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #0f172a; /* Koyu modern arka plan */
    font-family: 'Arial', sans-serif;
}

/* Kart Tasarımı */
.card {
    background: #1e293b;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    text-align: center;
    color: white;
    width: 320px;
    border: 1px solid #334155;
}

.icon {
    font-size: 50px;
    margin-bottom: 15px;
}

h1 {
    margin: 0;
    font-size: 24px;
    color: #38bdf8; /* Açık mavi tonu */
}

.title {
    color: #94a3b8;
    margin-bottom: 25px;
}

/* Buton Tasarımı */
.btn {
    background: #38bdf8;
    color: #0f172a;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.btn:hover {
    background: #0ea5e9;
    transform: scale(1.05);
}

/* Geri Bildirim Yazısı */
#feedback {
    margin-top: 20px;
    height: 20px;
    font-size: 14px;
    color: #22c55e;
}