body {
    font-family: 'Inter', sans-serif;
    background: #f0f2f5;
    padding: 40px;
    margin: 0;
}

.container {
    background: #fff;
    max-width: 700px;
    margin: auto;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="date"],
input[type="file"],
textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 14px;
    box-sizing: border-box;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.vendor-category {
    margin-bottom: 18px;
}

.vendor-category h4 {
    margin: 0;
    font-size: 16px;
    color: #007BFF;
    cursor: pointer;
    background-color: #eef3ff;
    padding: 10px;
    border-radius: 6px;
}

.vendor-list {
    display: none;
    padding: 12px 18px;
    background-color: #f9f9fc;
    border-left: 4px solid #007BFF;
    border-radius: 0 0 8px 8px;
    margin-top: 5px;
}

.vendor-list label {
    display: block;
    margin-bottom: 6px;
    font-weight: normal;
}

button {
    width: 100%;
    background-color: #007BFF;
    color: white;
    padding: 14px;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s ease;
}

button:hover {
    background-color: #0056b3;
}