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

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

.container {
    background: rgba(0,0,0,0.6);
    padding: 50px;
    border-radius: 15px;
    box-shadow: 0 0 25px rgba(0,0,0,0.5);
    min-width: 00px;
}

.attendance-form {
    margin-top: 5px;
    display: flex;
    flex-direction: column;
    gap: 10px;  
    width: 90%;
    max-width:400px;
}

.attendance-form label {
    font-size: clamp(14px, 2vw, 18px);
    margin-top: 1px;
    margin-bottom: 5px;
}

.attendance-form input {
    padding: 15px;
    font-size: clamp(14px, 2vw, 18px);
    border-radius: 10px;
    border: 2px solid #555;
    background: rgba(255,255,255,0.15);
    color: rgb(0, 0, 0);
    width: 100%;
    padding: 12px;
    font-size: clamp(14px, 2vw, 18px);
}

.attendance-form input[type="number"]::-webkit-inner-spin-button,
.attendance-form input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.attendance-form input[type="number"] {
    -moz-appearance: textfield;
}

/* Focus effect */
.attendance-form input:focus {
    border-color: #000000;
    box-shadow: 0 0 10px #000000;
    outline: none;
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.button-group button {
    width: 100%;
    margin-top: 2px;
    padding: 10px;
    font-size: clamp(14px, 2vw, 18px);
    border-radius: 12px;
    border: none;
    cursor: pointer;
    font-weight: bold;
    background: #5f5a5a;
    color: white;
}

.calculate-btn {
    background: #5a5859;
    color: white;
}

.calculate-btn:hover {
    background: #383637;
}

.reset-btn {
    background: #5a5859;
    color: white;
}

.reset-btn:hover {
    background: #383637;
}

footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    padding: 10px;
    background: rgba(255, 0, 0, 0.7);
    font-size: clamp(14px, 2vw, 18px);
}

footer a {
    color: white;
    text-decoration-thickness: 3px;
    font-weight: 500;
}

footer a i {
    margin-right: 6px;
    font-size: clamp(14px, 2vw, 18px);
    text-decoration-thickness: 3px;
}

footer a:hover {
    color: #000000;
}
#result {
    margin-top: 5px;

    font-size: clamp(14px, 2vw, 18px);
    font-weight: bold;
    color: red;

    text-align: center;
    white-space: pre-line;

    width: 90%;
    max-width:500px;
    min-height: 30px;         

    padding: 10px 10px;

    margin-left: auto;
    margin-right: 120px;

    display: block;          

}