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

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

body {
    font-family: 'Open Sans', sans-serif;
    background: linear-gradient(135deg, #3F51B5, #673AB7);
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

header {
    background: rgba(0, 0, 0, 0.5);
    padding: 20px 0;
    text-align: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

header h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 2em;
    color: #FFC107;
    letter-spacing: 2px;
}

nav {
    margin-top: 10px;
}

nav a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 15px;
    font-weight: 600;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #00E5FF;
}

.main-content {
    padding: 100px 20px 50px 20px;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    padding: 20px;
    flex: 1 1 calc(33.333% - 40px);
    min-width: 250px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.card h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5em;
    margin-bottom: 15px;
    color: #FFC107;
}

.card p {
    font-family: 'Roboto', sans-serif;
    font-size: 1em;
    color: #ffffff;
}

.button {
    display: inline-block;
    padding: 10px 20px;
    margin-top: 15px;
    background: linear-gradient(90deg, #00C853, #00E5FF);
    color: #ffffff;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.button:hover {
    background: linear-gradient(90deg, #00E5FF, #00C853);
}

.footer {
    background: rgba(0, 0, 0, 0.5);
    padding: 20px 0;
    text-align: center;
    color: #ffffff;
    position: fixed;
    width: 100%;
    bottom: 0;
    backdrop-filter: blur(10px);
}

.footer p {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.9em;
}

@media (max-width: 1440px) {
    .card {
        flex: 1 1 calc(33.333% - 40px);
    }
}

@media (max-width: 1200px) {
    .card {
        flex: 1 1 calc(33.333% - 40px);
    }
}

@media (max-width: 1024px) {
    .main-content {
        padding: 100px 15px 50px 15px;
    }
    .card {
        flex: 1 1 calc(50% - 40px);
    }
}

@media (max-width: 768px) {
    .card {
        flex: 1 1 100%;
    }
    header h1 {
        font-size: 1.5em;
    }
    nav a {
        margin: 0 10px;
        font-size: 0.9em;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 100px 10px 50px 10px;
    }
    .card {
        padding: 15px;
    }
    .card h2 {
        font-size: 1.2em;
    }
    .card p {
        font-size: 0.9em;
    }
}

@media (max-width: 320px) {
    header h1 {
        font-size: 1.2em;
    }
    nav a {
        margin: 0 5px;
        font-size: 0.8em;
    }
    .button {
        padding: 8px 16px;
        font-size: 0.9em;
    }
}

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

body {
    animation: aurora-move 15s linear infinite;
    background: radial-gradient(circle, rgb(255, 87, 34), transparent);
}

.code-block {
    background: rgba(0, 0, 0, 0.7);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    color: #00E5FF;
    margin: 20px 0;
}

.code-block code {
    white-space: pre-wrap;
}

img {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

.example-section {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 15px;
    margin-top: 40px;
}

.example-section h2 {
    font-family: 'Poppins', sans-serif;
    color: #FFC107;
    margin-bottom: 20px;
}

.example-section article {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 10px;
}

.example-data {
    list-style-type: disc;
    margin-left: 20px;
    margin-top: 20px;
}

.example-data li {
    margin-bottom: 10px;
    font-family: 'Roboto', sans-serif;
    color: #ffffff;
}