:root {
    /* Dark Theme (Default) - Slightly lighter */
    --color-bg-primary: #0a0b10;    /* Much darker primary background */
    --color-bg-secondary: #13141a;  /* Darker secondary background */
    --color-bg-tertiary: #181a22;   /* Darker tertiary */
    --color-bg-header: #090a0f;     /* Darker header */
    --color-bg-code: #10121a;       /* Almost black code block background */
    --color-bg-note: rgba(30, 32, 40, 0.85);  /* Slightly darker note background */
    --color-bg-hover: rgba(120, 140, 255, 0.12);  /* More visible hover */
    --color-bg-inline-lua: #181a22;  /* Match code block background */
    --color-bg-note-dark: rgba(40, 35, 30, 0.85);  /* Slightly darker note box */
    
    --color-text-primary: #f6f8fa;  /* Brighter text */
    --color-text-secondary: #bfc8d8;  /* Lighter secondary text */
    --color-text-accent: #7ecbff;   /* Brighter accent */
    --color-text-light: #ffffff;
    
    --color-border-primary: #23263a; /* Stronger border for contrast */
    --color-border-accent: #3a7bd5; /* Brighter accent border */
    
    --color-link: #7ecbff;
    --color-link-hover: #ffffff;
    
    /* Lua syntax highlighting colors with high contrast */
    --color-lua-variable: #4fc3f7;
    --color-lua-comment: #b0b8d0;    /* Lighter, more visible comment */
    --color-lua-operator: #ffffff;
    --color-lua-keyword: #ffd166;    /* Orange for keywords */
    --color-lua-string: #7fffde;     /* Aqua for strings */
    --color-lua-function: #ffe066;   /* Gold for functions */
    
    /* Shadow and transparency values - unchanged */
    --shadow-small: 0 2px 5px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 3px 8px rgba(0, 0, 0, 0.5);
    --shadow-large: 0 4px 12px rgba(0, 0, 0, 0.6);
    
    /* Common opacity values */
    --opacity-sidenav: 0.85;        /* Increased opacity for better contrast */
    
    /* Responsive margins - unchanged */
    --margin-left: 20%;
    --margin-xlarge: 10%;
    --margin-large: 8%;
    --margin-medium: 8%;
    --margin-small: 5%;
    
    /* Scrollbar colors */
    --color-scrollbar-track: rgba(20, 22, 28, 0.8);
    --color-scrollbar-thumb-start: #4c5260;
    --color-scrollbar-thumb-end: #323642;
    --color-scrollbar-thumb-hover-start: #5a606e;
    --color-scrollbar-thumb-hover-end: #4c5260;
    --color-scrollbar-shadow: rgba(90, 96, 110, 0.3);
    --color-scrollbar-shadow-hover: rgba(90, 96, 110, 0.5);

    /* New variables for gradients, shadows, and navigation accent */
    --gradient-header: linear-gradient(135deg, var(--color-bg-header) 0%, var(--color-bg-secondary) 70%, var(--color-bg-header-accent) 100%);
    --color-bg-header-accent: #2a2620;
    --color-logo-gradient: linear-gradient(120deg, #5caaff, #a0e8ff, #ffffff);
    --color-nav-underline: #b0a890;
    --color-nav-underline-glow: rgba(176, 168, 144, 0.6);
    --color-nav-hover-bg: var(--color-bg-hover);
    --color-nav-hover-text: #ffffff;
    --color-nav-hover-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] {
    --color-bg-primary: #f5f7ff;
    --color-bg-secondary: #e8ecf7;
    --color-bg-tertiary: #dce2f0;
    --color-bg-header: #f0f2fa;
    --color-bg-code: #e3e6eb; /* Medium-light gray for code block background */
    --color-bg-note: rgba(215, 228, 245, 0.75);
    --color-bg-hover: rgba(100, 120, 200, 0.1);
    --color-bg-inline-lua: #e3e6eb;
    --color-bg-note-dark: rgba(235, 240, 250, 0.7);
    
    --color-text-primary: #151720;
    --color-text-secondary: #2a2e40;
    --color-text-accent: #3050b0;
    --color-text-light: #2a2e40;
    
    --color-border-primary: #a0a8b8;
    --color-border-accent: #5c75d9;
    
    --color-link: #3050b0;
    --color-link-hover: #4060c0;
    
    /* Lua syntax highlighting colors for light theme */
    --color-lua-variable: #1a237e;
    --color-lua-comment: #374151;
    --color-lua-operator: #23272e;
    --color-lua-keyword: #b45309;
    --color-lua-string: #065f46;
    --color-lua-function: #6d28d9;
    

    /* Shadow values adjusted for light theme */
    --shadow-small: 0 2px 5px rgba(0, 0, 0, 0.15);
    --shadow-medium: 0 3px 8px rgba(0, 0, 0, 0.2);
    --shadow-large: 0 4px 12px rgba(0, 0, 0, 0.25);
    
    /* Common opacity values */
    --opacity-sidenav: 0.92;
    
    /* Scrollbar colors */
    --color-scrollbar-track: rgba(220, 225, 240, 0.8);
    --color-scrollbar-thumb-start: #5c75d9;
    --color-scrollbar-thumb-end: #a0b0e0;
    --color-scrollbar-thumb-hover-start: #3050b0;
    --color-scrollbar-thumb-hover-end: #5c75d9;
    --color-scrollbar-shadow: rgba(48, 80, 176, 0.2);
    --color-scrollbar-shadow-hover: rgba(48, 80, 176, 0.4);

    /* New variables for gradients, shadows, and navigation accent */
    --gradient-header: linear-gradient(135deg, var(--color-bg-header) 0%, var(--color-bg-secondary) 70%, var(--color-bg-header-accent) 100%);
    --color-bg-header-accent: #f5e9d2;
    --color-logo-gradient: linear-gradient(120deg, #225a9e, #3578c7, #70aaff);
    --color-nav-underline: #e0cfa0;
    --color-nav-underline-glow: rgba(224, 207, 160, 0.4);
    --color-nav-hover-bg: var(--color-bg-hover);
    --color-nav-hover-text: var(--color-text-primary);
    --color-nav-hover-shadow: 0 4px 8px rgba(48, 80, 176, 0.15);
}

html {
    background-color: var(--color-bg-primary);
    height: 100%;
    scroll-behavior: smooth;
}

body {
    color: var(--color-text-primary);
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    font-size: 16px;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

header {
    background: var(--gradient-header);
    box-shadow: var(--shadow-medium);
}

.header-box {
    padding: 1em;
    margin-left: var(--margin-left);
    min-height: 5em;
    display: flex;
    flex-direction: row;
    justify-content: start;
    align-items: center;
    margin-bottom: 0%;
    position: relative;
    padding: 0 0;
}

.header-right {
    width: 50%;
    margin-left: 10em;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2.5em;
    font-weight: 600;
    background: var(--color-logo-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: var(--shadow-small);
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.03);
    filter: brightness(1.1);
    text-decoration: none;
}

header nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1.2rem;
}

nav {
    display: flex;
    align-items: center;
}

header nav a {
    position: relative;
    color: var(--color-text-primary);
    font-weight: 500;
    padding: 0.6em 1em;
    border-radius: 6px;
    transition: all 0.25s ease-in-out;
    letter-spacing: 0.02em;
}

header nav a:hover {
    color: var(--color-nav-hover-text);
    background-color: var(--color-nav-hover-bg);
    transform: translateY(-2px);
    box-shadow: var(--color-nav-hover-shadow);
    text-decoration: none;
}

header nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--color-nav-underline);
    transition: width 0.3s cubic-bezier(0.4,0,0.2,1), box-shadow 0.3s, background-color 0.3s;
    transform: translateX(-50%);
    box-shadow: 0 0 6px var(--color-nav-underline-glow);
    pointer-events: none;
}

header nav a:hover::after {
    width: 80%;
}

header.collapsible {
    cursor: pointer;
    position: relative;
}

header.collapsible::after {
    content: '\25BC'; /* Downward arrow */
    position: absolute;
    right: 0;
    font-size: 0.8em;
    color: var(--color-text-light);
}

header.collapsible.collapsed::after {
    content: '\25B6'; /* Rightward arrow */
}

h2.collapsible, h3.collapsible {
    cursor: pointer;
    position: relative;
}

h2.collapsible::before, h3.collapsible::before {
    content: '';
    margin-right: 0;
    width: 0;
    display: none;
}

h2.collapsible.collapsed::before, h3.collapsible.collapsed::before {
    content: '';
    display: none;
}

footer {
    padding-left: var(--margin-left);
    background-color: var(--color-bg-header);
    color: var(--color-text-primary);
    padding-top: 1em;
    padding-bottom: 1em;
}

main {
    flex: 1;
    position: relative;
}

/* Side navigation styles */
.reference-container {
    display: flex;
    align-items: flex-start;
    margin-top: 2em;
    margin-left: var(--margin-left);
    flex-direction: row;
    gap: 2em;
    position: relative;
}

.side-nav {
    width: 200px;
    min-width: 200px;
    padding-left: 0;
    overflow-y: auto;
    border-right: none;
    position: sticky;
    top: 2em;
    align-self: flex-start;
}

.side-nav h4 {
    margin-top: 0;
    margin-bottom: 0.5em;
}

.side-nav ul {
    list-style-type: none;
    padding-left: 0.5em;
    margin-top: 0.5em;
}

.side-nav li {
    margin-bottom: 0.5em;
}

.side-nav a {
    color: var(--color-text-primary);
    text-decoration: none;
    padding: 0.5em 1em;;
}

.side-nav a:hover, .side-nav a.active {
    background: linear-gradient(90deg, var(--color-border-accent) 0 6px, var(--color-bg-hover) 6px 100%);
    font-weight: bold;
    border-radius: 4px;
    color: var(--color-link-hover);
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
}

.side-nav a.active {
    background: linear-gradient(90deg, var(--color-border-accent) 0 6px, var(--color-bg-hover) 6px 100%);
    font-weight: bold;
    border-radius: 4px;
    color: var(--color-link-hover);
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
}

.side-nav-h2 {
    color: var(--color-text-primary);
    font-weight: bold;
}

.side-nav-h3 {
    
    color: var(--color-text-primary);
    padding-left: 1em;
    font-size: 0.9em;
}

.content-wrapper {
    flex: 1;
    max-width: 900px;
    margin-left: 0;
    border-left: 2px solid var(--color-border-accent);
    padding-left: 1.5em;
    padding-bottom: 20vh; /* Allow last section to scroll to top */
}

/* Heading styles */
h1, h2, h3, h4, h5, h6 {
    margin-top: 1.5em;
    margin-bottom: 0.8em;
    color: var(--color-text-secondary);
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 2.2em;
    color: #8fc6ff;
    font-weight: 700;
    text-shadow: 0 1px 4px rgba(143,198,255,0.08);
    letter-spacing: 0.01em;
    border-bottom: 1.5px solid #8fc6ff;
    padding-bottom: 0.3em;
}

h2 {
    font-size: 1.8em;
    color: #b3e0ff;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(179,224,255,0.07);
    letter-spacing: 0.005em;
    border-bottom: 1px solid #b3e0ff;
    padding-bottom: 0.2em;
}

h3 {
    font-size: 1.4em;
    color: #c9e6ff;
    font-weight: 600;
    text-shadow: 0 1px 1px rgba(201,230,255,0.06);
    letter-spacing: 0.005em;
}

h4 {
    font-size: 1.2em;
}

p {
    margin-bottom: 1.2em;
}

/* List styling for better readability */
ul, ol {
    margin: 1em 0 1.5em 0;
    padding-left: 2em;
}

li {
    margin-bottom: 0.5em;
}

/* Add better spacing between sections */
main > section {
    margin-bottom: 2em;
}

/* Improve table styling if tables are used */
table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.5em 0;
    overflow-x: auto;
    display: block;
}

th, td {
    padding: 0.75em 1em;
    border: 1px solid var(--color-border-primary);
}

th {
    background-color: var(--color-bg-secondary);
    font-weight: bold;
}

/* Code and syntax highlighting with improved contrast */
.inline-lua {
    background-color: var(--color-bg-inline-lua);
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    white-space: nowrap;
    padding: 0.1em 0.3em;
    color: #23272e;
}

/* Code block styling with improved contrast */
pre {
    background-color: var(--color-bg-code);
    border: 1px solid var(--color-border-primary);
    border-radius: 8px;
    padding: 1.2em;
    margin: 1.5em 0;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    line-height: 1.4;
    box-shadow: inset 0 1px 8px rgba(0, 0, 0, 0.08);
    color: #23272e;
}

.lua-variable {
    color: var(--color-lua-variable);  /* Brighter variable color */
}

.lua-comment {
    color: var(--color-lua-comment);  /* Brighter comment color */
    font-style: italic;
}

.lua-operator {
    color: var(--color-lua-operator);  /* Bright white for better contrast */
}

.lua-keyword {
    color: var(--color-lua-keyword);  /* Brighter keyword color */
    font-weight: bold;
}

.lua-string {
    color: var(--color-lua-string);  /* Brighter string color */
}

.lua-function {
    color: var(--color-lua-function);  /* Brighter function color */
    font-weight: bold;
}

.inline-ref {
    color: var(--color-text-accent);
    font-weight: bold;
    padding: 0 2px;
}

/* Note boxes */
.note {
    background: linear-gradient(to right, rgba(60, 50, 40, 0.7), rgba(50, 45, 40, 0.55));
    border-left: 4px solid var(--color-border-accent);
    padding: 1em 1.2em;
    margin: 1.8em 0;
    border-radius: 0 8px 8px 0;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
}

.note p:last-child {
    margin-bottom: 0;
}

/* Image styling */
img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Custom Scrollbar - Enhanced version */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--color-scrollbar-track);
    border-radius: 10px;
    box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.4);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--color-scrollbar-thumb-start), var(--color-scrollbar-thumb-end));
    border-radius: 10px;
    border: 2px solid var(--color-scrollbar-track);
    box-shadow: 0 0 3px var(--color-scrollbar-shadow);
    transition: all 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, var(--color-scrollbar-thumb-hover-start), var(--color-scrollbar-thumb-hover-end));
    border-width: 1px;
    box-shadow: 0 0 5px var(--color-scrollbar-shadow-hover);
}

::-webkit-scrollbar-corner {
    background: var(--color-bg-header);
}

/* Firefox scrollbar styling */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-accent) var(--color-scrollbar-track);
}

/* Responsive layout adjustments */
@media screen and (max-width: 1500px) {
    :root {
        --margin-left: var(--margin-xlarge);
    }
}

/* Responsive layout adjustments */
@media screen and (max-width: 1200px) {
    :root {
        --margin-left: var(--margin-large);
    }
}

@media screen and (max-width: 900px) {
    :root {
        --margin-left: var(--margin-small);
    }
    
    .side-nav {
        display: none;
    }
    .content-wrapper {
        margin-left: 0;
    }
}

/* Mobile responsive styles */
@media screen and (max-width: 768px) {
    :root {
        --margin-left: 1em;
    }
    
    .side-nav {
        display: none; /* Hide side navigation on mobile devices */
    }
    
    .content-wrapper {
        width: 100%; /* Make content take full width */
    }
    
    main {
        margin-left: 5%;
        margin-right: 5%;
        padding-left: 5%;
        padding-right: 5%;
    }
    
    header {
        padding-left: 5%;
        padding-right: 5%;
        flex-direction: column;
        align-items: center;
        min-height: auto;
        padding-top: 1em;
        padding-bottom: 1em;
    }
    
    header nav {
        margin-left: 0;
        margin-top: 1em;
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    font-size: 1.2rem;
    margin-left: 15px;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--color-bg-tertiary);
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.theme-toggle:hover {
    background-color: var(--color-bg-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(100, 130, 255, 0.3);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    fill: var(--color-text-primary);
    transition: all 0.3s ease;
}

.theme-toggle:hover svg {
    fill: var(--color-text-accent);
}