/* Base styling */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #1e1e1e;
    color: #f1f1f1;
    transition: background-color 0.3s, color 0.3s;
}

header, nav, footer {
    background-color: #121212;
    color: #f1f1f1;
    padding: 15px 25px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.5);
}

header h1 {
    margin: 0;
    font-size: 2rem;
}

nav {
    margin-top: 10px;
}

nav a {
    color: #f1f1f1;
    margin-right: 20px;
    text-decoration: none;
    position: relative;
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover, nav a.active {
    color: #1ed760;
}

nav a::after {
    content: '';
    display: block;
    height: 2px;
    width: 0%;
    background: #1ed760;
    transition: width 0.3s;
    position: absolute;
    bottom: -5px;
    left: 0;
}

nav a:hover::after, nav a.active::after {
    width: 100%;
}

/* Container styling */
.container {
    padding: 30px 20px;
    max-width: 1000px;
    margin: auto;
}

h2 {
    color: #1ed760;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

h3 {
    color: #ffffff;
}

/* Table of Contents */
.toc {
    background-color: #2a2a2a;
    padding: 15px;
    border-left: 5px solid #1ed760;
    margin-bottom: 30px;
    border-radius: 8px;
}

.toc ul {
    list-style: none;
    padding-left: 0;
}

.toc ul li a {
    color: #f1f1f1;
    text-decoration: none;
    transition: color 0.3s, transform 0.2s;
}

.toc ul li a:hover {
    color: #1ed760;
    transform: translateX(5px);
}

/* Sections styling */
section {
    background-color: #2a2a2a;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 40px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    transition: transform 0.3s, box-shadow 0.3s;
}

section:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.7);
}

pre {
    background: #1e1e1e;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    box-shadow: inset 0 0 5px rgba(0,0,0,0.5);
    transition: transform 0.2s;
}

pre:hover {
    transform: scale(1.02);
}

img.example {
    border: 1px solid #444;
    max-width: 25%;
    border-radius: 8px;
    transition: transform 0.3s, box-shadow 0.3s;
    margin-top: 10px;
}

img.example:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(0,0,0,0.7);
}

/* Container for cards */
.language-cards {
    display: flex;
    flex-direction: column;  /* stack vertically */
    align-items: center;     /* center horizontally */
    gap: 40px;               /* space between cards */
    margin-top: 20px;
}

/* Individual card styling */
.card {
    display: block;           /* ensure it behaves as a block */
    width: 320px;             /* fixed width */
    background-color: #2a2a2a;
    color: #f1f1f1;
    text-align: center;
    padding: 25px;
    border-radius: 12px;
    text-decoration: none;
    box-shadow: 0 6px 15px rgba(0,0,0,0.5);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    margin-bottom: 15px;
    transition: transform 0.3s;
}

.card h4 {
    margin: 10px 0 5px 0;
    color: #1ed760;
}

.card p {
    font-size: 0.9rem;
    color: #ccc;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.7);
}

.card:hover img {
    transform: scale(1.15);
}

/* Responsive design */
@media(max-width: 768px) {
    .card {
        width: 80%;   /* cards shrink for small screens */
        padding: 20px;
    }

    .card img {
        width: 80px;
        height: 80px;
    }
}



/* Footer */
footer {
    background-color: #121212;
    color: #f1f1f1;
    text-align: center;
    padding: 15px 20px;
    border-top: 2px solid #1ed760;
}

footer a {
    color: #1ed760;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s, transform 0.2s;
}

footer a:hover {
    color: #ffffff;
    transform: scale(1.05);
}

/* Responsive */
@media(max-width: 768px) {
    nav a {
        display: block;
        margin-bottom: 10px;
    }
    .toc {
        margin-bottom: 20px;
    }
}