body {
    font-family: 'Montserrat', sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    text-align: center;
    max-width: 95%;
    width: 1100px; /* Increased from 800px */
}

h1 {
    color: #333;
    margin-bottom: 2rem;
    font-size: 2.5rem; /* Increased size */
}

.input-group {
    display: flex;
    gap: 15px;
    margin-bottom: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

input[type="text"] {
    padding: 15px 20px; /* Increased padding */
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1.2rem; /* Increased font size */
    width: 350px;
    outline: none;
    transition: border-color 0.3s;
}

input[type="text"]#dateInput { width: 160px; }
input[type="text"]#numberInput { width: 130px; }

input[type="text"]:focus {
    border-color: #d4af37;
}

button {
    padding: 15px 30px; /* Increased padding */
    background-color: #d4af37;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.2rem; /* Increased font size */
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

button:hover {
    background-color: #b8962d;
    transform: translateY(-2px);
}

.preview-container {
    width: 100%;
    margin-top: 1rem;
    border: 1px solid #eee;
    overflow: hidden;
    border-radius: 8px;
}

canvas {
    max-width: 100%;
    height: auto;
    display: block;
}