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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.from select option, .conv select option {
    background: #667eea;
    color: black !important;
}

body::before,
body::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    animation: float 15s infinite ease-in-out;
}

body::before {
    width: 150px;
    height: 150px;
    left: 10%;
    top: 20%;
}

body::after {
    width: 200px;
    height: 200px;
    right: 15%;
    bottom: 10%;
    animation-delay: 5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.5;
    }
    50% {
        transform: translateY(-100px) rotate(180deg);
        opacity: 1;
    }
}

body > div {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border-radius: 30px;
    padding: 40px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    max-width: 450px;
    width: 100%;
    position: relative;
    z-index: 10;
}


h1 {
    text-align: center;
    color: white;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    letter-spacing: 1px;
}


input[type="number"] {
    width: 100%;
    padding: 18px 25px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    color: white;
    font-size: 24px;
    font-weight: 700;
    outline: none;
    transition: all 0.3s ease;
    margin-bottom: 25px;
}

input[type="number"]::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

input[type="number"]:focus {
    background: rgba(255, 255, 255, 0.4);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}


select {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    color: white;
    font-size: 16px;
    font-weight: 600;
    outline: none;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 15px;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ffffff' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
}

select:hover {
    background: rgba(255, 255, 255, 0.35);
    border-color: rgba(255, 255, 255, 0.5);
}

select:focus {
    background: rgba(255, 255, 255, 0.4);
    border-color: rgba(255, 255, 255, 0.6);
}


img {
    width: 30px;
    height: 20px;
    border-radius: 4px;
    margin-left: 10px;
    vertical-align: middle;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}


button {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 15px;
    color: white;
    font-size: 20px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    margin-top: 10px;
    letter-spacing: 1px;
}

button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.5);
}

button:active {
    transform: translateY(-1px);
}


p {
    text-align: center;
    color: white;
    font-size: 28px;
    font-weight: 700;
    margin-top: 25px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


@media (max-width: 600px) {
    body > div {
        padding: 30px 20px;
    }

    h1 {
        font-size: 26px;
    }

    input[type="number"] {
        font-size: 20px;
        padding: 15px 20px;
    }

    p {
        font-size: 22px;
        padding: 20px;
    }

    button {
        font-size: 18px;
        padding: 15px;
    }
}