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

body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f8f9fa;
}

.container {
    text-align: center;
    width: 90%;
    max-width: 600px;
}

h1 {
    margin-bottom: 20px;
    color: #333;
}

input[type="text"] {
    width: 100%;
    padding: 15px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 24px;
    outline: none;
    box-shadow: 0 1px 6px rgba(32,33,36,0.28);
    margin-bottom: 20px;
}
#cuponInput {
    width: 50%;
}
button {
    padding: 10px 24px;
    font-size: 15px;
    cursor: pointer;
    border: none;
    border-radius: 4px;
    color: #3c4043;
    border: 1px solid #757575;
    margin: 5px;
    transition: 0.2s;
}

button:hover {
    box-shadow: 0 1px 1px rgba(0,0,0,0.1);
    background-color: #f1f3f4;
    border: 1px solid #dadce0;
}

.btn-success {
    background-color: #1a73e8;
    color: white;
}
.btn-success:hover {
    background-color: #1557b0;
}

.btn-danger {
    background-color: #ea4335;
    color: white;
}
.btn-danger:hover {
    background-color: #c5221f;
}

.hidden {
    display: none;
}