* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Poppins, sans-serif;
}

body {
    background: #f4f6fb;
}

/* Header */
.header {
    background: #0a66c2;
    color: white;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

/* Main */
.container {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.card {
    background: white;
    width: 350px;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

/* Students */
.student {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 15px;
}

/* Buttons */
.btn {
    width: 100%;
    margin-top: 12px;
    padding: 10px;
    background: #0a66c2;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

input {
    align-items: center;
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.secondary {
    background: #555;
}