body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(-45deg, #0f172a, #f97316, #0f172a, #f97316);
    background-size: 400% 400%;
    animation: gradientBG 90s ease infinite;
    color: white;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Navbar */
nav {
    background-color: #1e293b;
    padding: 15px;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
}

nav a:hover {
    color: #38bdf8;
}

/* Main content */
.container {
    padding: 40px;
    text-align: center;
    animation: fadeIn 1s ease-in;
    max-width: 1000px;
    margin: auto;
}

h1 {
    font-size: 40px;
    margin-bottom: 10px;
}

p {
    font-size: 18px;
    color: #cbd5f5;
}

/* Buttons */
.button {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #38bdf8;
    color: black;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
}

.button:hover {
    background-color: #0ea5e9;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

* {
    transition: all 0.2s ease-in-out;
}

input[type="text"] {
    padding: 10px;
    border-radius: 6px;
    border: none;
    margin-top: 10px;
}

input[type="submit"] {
    margin-top: 10px;
    padding: 10px 15px;
    border: none;
    border-radius: 6px;
    background-color: #38bdf8;
    font-weight: bold;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: #0ea5e9;
}

iframe {
    margin-top: 15px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.spacer {
    height: 50px; /* vertical space */
    width: 100%; /* full width */
}