/* --- CSS Custom Properties for Neon Colors --- */
:root {
    --neon-blue: #2dd9fe; /* Primary color: Cyan/Blue */
    --neon-blue-glow: #00a3d5; 
    --neon-pink: #ff008d; /* Secondary color: Magenta/Pink */
    --neon-pink-glow: #e10361;
    --dark-bg: #10101a; /* Very dark background */
    --text-color: #f0f0f0; /* Light text */
    --valid-color: #00ff66; /* Bright Green for success/valid states */
}

/* --- Global Styles: Dark Background and Font --- */
body {
    font-size: 1.2rem;
    background-color: var(--dark-bg);
    color: var(--text-color);
    font-family: 'Times New Roman', Times, serif,Arial, Helvetica, sans-serif,'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif,Georgia, 'Times New Roman', Times, serif;
    margin: 0;
    padding: 0;
    line-height: 1.8; /* Increased line-height for readability */
}

/* --- Header and Logo --- */
header {
    background-color: #0d0d15;
    border-bottom: 2px solid var(--neon-blue);
    margin-bottom: 20px;
}

header img {
    display: block;
    margin: 0 auto;
    width: 80px;
    filter: drop-shadow(0 0 10px var(--neon-pink)); /* Apply glow to logo */
    padding-top: 20px;
}

/* Main Header Neon Glow */
header h1, header h3 {
    text-align: center;
    text-transform: uppercase;
    padding: 10px 0;
    margin: 0;
    /* Stacked text-shadows for the glow effect */
    text-shadow: 
        0 0 5px #fff,
        0 0 10px #fff,
        0 0 20px var(--neon-blue),
        0 0 40px var(--neon-blue),
        0 0 80px var(--neon-blue-glow);
}

header h1 {
    color: #fff;
    font-size: 3em;
}

header h3 {
    color: var(--neon-blue);
    font-size: 1.5em;
    padding-bottom: 20px;
}


/* --- Typography and Structure --- */
.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 20px;
}

.large {
    display: block;
    font-size: 1.7em;
    color: var(--neon-blue);
    text-shadow: 0 0 5px var(--neon-blue-glow);
    margin-top: 20px;
    font-weight: bold;
}

.larger {
    display: block;
    font-size: 2em;
    color: var(--neon-pink);
    text-shadow: 0 0 5px var(--neon-pink-glow);
    margin-top: 30px;
    font-weight: bold;
}

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

li::before {
    content: "⚡ ";
    color: var(--neon-pink);
}

/* --- Code and Examples --- */
.example {
    background-color: #1a1a2e;
    border: 1px solid var(--neon-blue);
    box-shadow: 0 0 10px rgba(45, 217, 254, 0.5);
    padding: 15px;
    margin: 15px 0;
    white-space: pre-wrap;
    font-size: 0.9em;
    color: #f8f8ff;
    border-radius: 5px;
    word-wrap: break-word;
}

/* --- Tables --- */
table {
    border: 2px solid crimson;
    max-width: 100%;
    height: auto;
    border-collapse: collapse;
    margin: 20px 0;
    box-shadow: 0 0 15px rgba(255, 0, 141, 0.3);
}

th, td {
    border: 2px solid crimson;
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #333;
}

th {
    background-color: var(--neon-pink);
    color: var(--dark-bg);
    font-weight: bold;
    text-shadow: none;
    text-transform: uppercase;
}

tr:nth-child(even) {
    background-color: #131320; /* Subtle stripe effect */
}
.title{
    color: #00ff66;
    font-size: larger;
}






/* --- Footer --- */
footer {
    background-color: #0d0d15;
    padding: 20px;
    text-align: center;
    border-top: 3px solid var(--neon-blue);
    margin-top: 50px;
}

.footer-nav h3 {
    color: var(--neon-pink);
    text-shadow: 0 0 5px var(--neon-pink);
    margin: 20px 0 10px;
}

/* Footer Navigation Buttons */
.footer-nav button {
    background: transparent;
    border: 2px solid var(--neon-blue);
    padding: 10px 20px;
    box-shadow: 0 0 10px var(--neon-blue-glow);
    transition: all 0.3s;
    cursor: pointer;
    margin: 5px;
}

.footer-nav button:hover {
    background: var(--neon-blue);
    box-shadow: 0 0 15px var(--neon-blue-glow), 0 0 20px var(--neon-blue);
}

.footer-nav button a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: bold;
}

.footer-nav button:hover a {
    color: var(--dark-bg);
}

/* Footer Topic List */
.footer-nav nav ol {
    list-style: none;
    padding: 0;
    margin: 0;
    column-count: 2; /* Two columns for the long list */
    column-gap: 30px;
    text-align: left;
    max-width: 600px;
    margin: 20px auto;
}

.footer-nav nav ol li {
    padding: 5px 0;
    border-bottom: 1px dotted #222;
}

.footer-nav nav ol li::before {
    content: "::"; /* Different marker for the list */
    color: var(--neon-pink);
    margin-right: 5px;
}

.footer-nav nav ol li a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-nav nav ol li a:hover {
    color: var(--neon-blue);
    text-shadow: 0 0 3px var(--neon-blue-glow);
}

/* Footer Bottom */
.footer-bottom {
    margin-top: 20px;
    padding-top: 10px;
    border-top: 1px dotted #333;
}

.footer-links a {
    color: #666;
    text-decoration: none;
    margin: 0 10px;
    font-size: 0.9em;
}

.footer-links a:hover {
    color: var(--neon-pink);
}

.copyright {
    color: #444;
    font-size: 0.8em;
}

/* --- Responsive Adjustments --- */
@media (max-width: 768px) {
    .footer-nav nav ol {
        column-count: 1;
        max-width: none;
    }
}