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

body {
    background-color: #f4f7f6;
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.age-card {
    background: white;
    width: 100%;
    max-width: 360px; /* Chota aur compact size */
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border-top: 5px solid #28a745;
    text-align: center;
}

h3 { color: #1e4620; margin-bottom: 20px; }

.input-box { display: flex; flex-direction: column; gap: 10px; }

input {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

button {
    background: #28a745;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
}

button:hover { background: #218838; }

.main-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 20px;
}

.box {
    background: #f0fdf4;
    padding: 10px 5px;
    border-radius: 8px;
    border: 1px solid #dcfce7;
}

.box span { font-size: 12px; color: #666; }
.box h4 { color: #28a745; font-size: 18px; }

.stats {
    margin-top: 15px;
    text-align: left;
    font-size: 13px;
    color: #444;
    background: #f9f9f9;
    padding: 10px;
    border-radius: 5px;
}

.stats p { margin: 5px 0; display: flex; justify-content: space-between; }