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

html, body {
    font-family: "Inter", Arial, sans-serif;
    height: 100%;
    width: 100%;
    background-color: #0a0f1f;
    color: #e5e7eb;
}

h1{
    text-align: center;
    color: #ffffff;
    font-size: 38px;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin: 50px 0;
}

.main-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 80px;
    padding: 20px;
    flex-wrap: wrap;
}

.form-container{
    background: rgba(23, 32, 52, 0.65);
    backdrop-filter: blur(12px);
    padding: 35px 40px;
    border-radius: 16px;
    width: 350px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255,255,255,0.08);
    transition: 0.3s ease;
}

.form-container:hover{
    transform: translateY(-5px);
}

.form-container label{
    display: block;
    margin: 15px 0 8px;
    font-weight: 600;
    color: #dce3f0;
    font-size: 15px;
}

.form-container input[type="text"],
.form-container input[type="email"],
.form-container input[type="number"],
.form-container input[type="file"],
.form-container input[type="range"] {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    background: #10182d;
    color: #fff;
    border: 1.5px solid #2d3b57;
    outline: none;
    transition: 0.3s ease;
}

.form-container input:focus{
    border-color: #3b82f6;
    background: #13203a;
}

.radio-group,
.checkbox-group{
    display: flex;
    gap: 25px;
    margin-top: 8px;
    align-items: center;
}

#marksValue{
    font-weight: 700;
    color: #60a5fa;
    margin-right: 5px;
}

button{
    width: 100%;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: #fff;
    border: none;
    padding: 15px;
    border-radius: 10px;
    margin-top: 25px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.2s ease;
}

button:hover{
    background: linear-gradient(135deg, #1e40af, #2563eb);
    transform: translateY(-2px);
}

.card-container{
    display: none;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    padding: 35px;
    border-radius: 20px;
    width: 320px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 8px 25px rgba(0,0,0,0.4);
}

#student-photo {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #3b82f6;
    margin: 20px auto;
    display: block;
}

.student-card h2{
    font-size: 22px;
    color: #e2e8f0;
    margin-bottom: 10px;
    font-weight: 600;
}

.student-card p{
    margin: 8px 0;
    color: #d1d5db;
    font-size: 15px;
}

.student-card p span{
    font-weight: 600;
    color: #fff;
}

@media (max-width: 1024px){
    .main-container {
        gap: 40px;
    }
}

@media (max-width: 768px){
    h1{
        font-size: 30px;
        margin-bottom: 30px;
    }

    .main-container{
        flex-direction: column;
        align-items: center;
        gap: 50px;
    }

    .form-container,
    .card-container{
        width: 90%;
        max-width: 380px;
    }

    #student-photo{
        width: 110px;
        height: 110px;
    }
}

@media (max-width: 480px){

    h1{
        font-size: 26px;
    }

    .form-container,
    .card-container{
        width: 95%;
    }

    #student-photo{
        width: 100px;
        height: 100px;
    }

    button{
        padding: 13px;
        font-size: 15px;
    }
}