body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(to right, #e0f7fa, #b2ebf2);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 500px;
    padding: 20px;
    text-align: center;
}

header .logo {
    width: 100px;
    height: auto;
}

header h1 {
    color: #0277bd;
    font-size: 28px;
    margin: 10px 0;
}

header p {
    color: #555;
    font-size: 16px;
}

.form-container {
    margin: 20px 0;
}

.form-container h2 {
    color: #01579b;
    margin-bottom: 20px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

label {
    font-weight: bold;
    color: #333;
}

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

button {
    padding: 12px;
    background-color: #0288d1;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0277bd;
}

.result-output {
    margin-top: 20px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    color: #333;
    display: none;
    text-align: left;
}

.result-output h3 {
    color: #01579b;
    margin-bottom: 15px;
    text-align: center;
}

.result-output h4 {
    color: #0277bd;
    margin: 15px 0 10px;
    font-size: 18px;
}

.personal-grid, .subjects-grid {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 10px;
}

.personal-grid th, .personal-grid td, .subjects-grid th, .subjects-grid td {
    padding: 10px;
    border-bottom: 1px solid #ddd;
    text-align: left;
}

.personal-grid th {
    background-color: #0288d1;
    color: #fff;
    width: 40%;
}

.personal-grid td {
    background-color: #f9f9f9;
    color: #333;
}

.subjects-grid th {
    background-color: #0277bd;
    color: #fff;
    width: 40%;
}

.subjects-grid td {
    background-color: #e0f7fa;
    color: #333;
}

.error {
    color: #d32f2f;
    font-weight: bold;
    text-align: center;
}

footer {
    margin-top: 20px;
    color: #777;
    font-size: 14px;
}