@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500;600;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Open Sans', sans-serif;
    user-select: none;
}

body {
    background: linear-gradient(135deg, #2a2a2a, #121212);
    color: #e0e0e0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

.container {
    background: rgba(30, 30, 30, 0.9);
    border-radius: 15px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
    text-align: center;
    max-width: 600px;
    padding: 40px 20px;
    backdrop-filter: blur(10px);
}

.container h1 {
    font-size: 32px;
    color: #ffffff;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.container p {
    font-size: 16px;
    color: #b0b0b0;
    margin-bottom: 30px;
    line-height: 1.6;
    animation: fadeIn 2s ease-in-out;
}

.inp-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.values {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.inp-container label {
    font-size: 14px;
    color: #cccccc;
    margin-bottom: 5px;
}

.inp-container input {
    width: 100%;
    padding: 10px;
    border: 1px solid #444444;
    border-radius: 8px;
    background: #2c2c2c;
    color: #e0e0e0;
    font-size: 16px;
    transition: all 0.3s ease;
}

.inp-container input:focus {
    border-color: #3498db;
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.5);
}

.submit {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 500;
    color: #ffffff;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.submit:hover {
    background: linear-gradient(135deg, #2980b9, #27ae60);
}

.gcd-final, .lcm-final {
    margin-top: 20px;
    font-size: 20px;
    color: #ffffff;
    display: none;
    animation: fadeIn 1s ease-in-out;
}

.gcd-final.show, .lcm-final.show {
    display: block;
}

.gcd-final .gcd, .lcm-final .lcm {
    color: #e74c3c;
    font-weight: 700;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}