:root {
    /* Dark Theme (Default) - Slightly lighter */
    --color-bg-primary: #1b1d27;    /* Much darker primary background */
    --color-bg-secondary: #2d303f;  /* Darker secondary background */
    --color-bg-tertiary: #2c3041;   /* Darker tertiary */
    --color-bg-header: #10121b;     /* Darker header */
    --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-note-dark: rgba(40, 35, 30, 0.85);  /* Slightly darker note box */
    
    --color-text-primary: #a5a5a5;  /* 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;
    
    /* 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 */      /* Font families with improved Inter setup */
    --font-family-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-code: 'JetBrains Mono', 'Monaco', 'Cascadia Code', monospace;
    --font-family-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* 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-text-subTitle: #4a576f; /* Lighter subtitle text */
    --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);
    
    --color-inline-code: #3498db;

    /* Heading colors */
    --color-heading-h1: #8fc6ff;
    --color-heading-h2: #b3e0ff;
    --color-heading-h3: #c9e6ff;
    --color-heading-h1-border: #8fc6ff;
    --color-heading-h2-border: #b3e0ff;
}

[data-theme="light"] {
    --color-bg-primary: #e0e0e0;
    --color-bg-secondary: #b6b6b6;
    --color-bg-tertiary: #b6b6b6;
    --color-bg-header: #d3d3d3;
    --color-bg-note: rgba(215, 228, 245, 0.75);
    --color-bg-hover: rgba(100, 120, 200, 0.1);
    --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: #496cb3;
    --color-border-accent: #1d46ee;
    
    --color-link: #3050b0;
    --color-link-hover: #4060c0;
    
    /* 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);
    
    /* Heading colors for light theme */
    --color-heading-h1: #225a9e;
    --color-heading-h2: #3578c7;
    --color-heading-h3: #4a90e2;
    --color-heading-h1-border: #225a9e;
    --color-heading-h2-border: #3578c7;
}

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

body {
    color: var(--color-text-primary);
    font-family: var(--font-family-primary);
    margin: 0;
    padding: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    font-size: 16px;
    line-height: 1.65; /* Increased for better Inter readability */
    font-weight: 500; /* Medium weight for substantial feel */
    letter-spacing: 0.015em; /* Slightly more spacing for better readability */
    font-feature-settings: "cv02", "cv03", "cv04", "cv11"; /* Better Inter alternates */
    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: auto;
    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;
}
.subTitle {
    position: relative;
    left: -5.5rem;
    top: 1.7rem;
    color: var(--color-text-subTitle);
    text-wrap: nowrap;;
}

.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%;
}

.dropdown {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
}

.dropdown-content {
    display: flex;
    flex-direction: column;
    position: absolute;
    overflow: hidden;
    top: 100%;      /* Position below the dropdown */
    left: 0;        /* Align left edge */
    min-width: 160px;
    
    background-color: var(--color-bg-secondary);
    box-shadow: var(--shadow-medium);
    z-index: 1;
    border-radius: 8px;
    
    max-height: 0px;
    transition: all 1.5s ease;
}

.dropdown:hover  .dropdown-content {
    max-height: 200px;
}

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: block; /* Change from flex since sidebar is now fixed */
    margin-top: 2em;
    margin-left: var(--margin-left);
    position: relative;
    /* Ensure the container doesn't interfere with sticky positioning */
    overflow: visible;
    height: auto;
}

.side-nav {
    width: 200px;
    min-width: 200px;
    padding-left: 0;
    overflow-y: auto;
    border-right: none;
    position: fixed;
    top: 7em; /* Account for header height (5em) + spacing (2em) */
    left: var(--margin-left);
    max-height: calc(100vh - 9em); /* Account for header + top spacing */
    z-index: 10;
    /* Ensure proper stacking context */
    transform: translateZ(0);
    will-change: transform;
}


.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;
}

.side-nav-h4 {
    margin-top: 0;
    margin-bottom: 0.5em;
    font-size: 0.75em;
}

.content-wrapper {
    flex: 1;
    max-width: 70%;
    margin-left: 220px; /* Account for fixed sidebar width + gap */
    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-family: var(--font-family-heading);
    font-weight: 600;
    line-height: 1.3;
}

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

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

h3 {
    font-size: 1.4em;
    color: var(--color-heading-h3);
    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;
}


/* 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;
}

/* Enhanced note component styles */
.note-title {
    margin-top: 0;
    margin-bottom: 0.8em;
    font-size: 1.1em;
    font-weight: 600;
    color: var(--color-text-accent);
    border-bottom: 1px solid rgba(126, 203, 255, 0.3);
    padding-bottom: 0.3em;
}

/* Note type variations */
.note-warning {
    background: linear-gradient(to right, rgba(80, 60, 30, 0.7), rgba(70, 55, 30, 0.55));
    border-left-color: #f39c12;
}

.note-warning .note-title {
    color: #f39c12;
    border-bottom-color: rgba(243, 156, 18, 0.3);
}

.note-info {
    background: linear-gradient(to right, rgba(30, 60, 80, 0.7), rgba(25, 55, 75, 0.55));
    border-left-color: #3498db;
}

.note-info .note-title {
    color: #3498db;
    border-bottom-color: rgba(52, 152, 219, 0.3);
}

.note-success {
    background: linear-gradient(to right, rgba(30, 80, 40, 0.7), rgba(25, 75, 35, 0.55));
    border-left-color: #27ae60;
}

.note-success .note-title {
    color: #27ae60;
    border-bottom-color: rgba(39, 174, 96, 0.3);
}

.note-danger {
    background: linear-gradient(to right, rgba(80, 30, 30, 0.7), rgba(75, 25, 25, 0.55));
    border-left-color: #e74c3c;
}

.note-danger .note-title {
    color: #e74c3c;
    border-bottom-color: rgba(231, 76, 60, 0.3);
}

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

/* Code styling */
code, pre {
    font-family: var(--font-family-code);
    font-size: 0.9em;
}

/* Block code styling */
.custom-code-block {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border: 1px solid var(--color-border-primary);
    border-radius: 8px;
    padding: 1.2em;
    margin: 1.5em 0;
    overflow-x: auto;
    box-shadow: var(--shadow-small);
    position: relative;
}

.custom-code-block code {
    background: none;
    padding: 0;
    border: none;
    border-radius: 0;
    font-size: 0.85em;
    line-height: 1.5;
    color: var(--color-text-secondary);
}

/* Inline code styling */
code.custom-inline-code {
    background: var(--color-bg-secondary) !important;
    border: 1px solid var(--color-border-primary);
    border-radius: 4px;
    padding: 0.2em 0.4em;
    font-size: 0.85em;
    color: var(--color-inline-code) !important;
    font-weight: 500;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    display: inline;
    white-space: nowrap;
    font-family: var(--font-family-code) !important;
}

/* Variable highlighting within inline code */
.inline-var {
    color: var(--color-text-accent);
    font-weight: 600;
    background: rgba(126, 203, 255, 0.1);
    padding: 0.1em 0.2em;
    border-radius: 2px;
    border: 1px solid rgba(126, 203, 255, 0.2);
}

/* Prism.js compatibility - override default styles */
.custom-code-block .token.variable {
    color: var(--color-text-accent) !important;
}

.custom-code-block .token.string {
    color: #a3d977 !important;
}

.custom-code-block .token.keyword {
    color: #ff7aa3 !important;
}

.custom-code-block .token.function {
    color: #78dce8 !important;
}

.custom-code-block .token.comment {
    color: #727072 !important;
    font-style: italic;
}

/* 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;
        max-width: 100%;
    }
    .reference-container {
        margin-left: var(--margin-small);
    }
}

/* 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 */
        margin-left: 0;
        max-width: 100%;
    }
    
    .reference-container {
        margin-left: 1em;
    }
    
    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;
    }
}

.table-no-style {
    border-collapse: collapse;
    gap: 0px;

}

.table-no-style > tr,td {
    border: none;
    padding: 0px;
    padding-left: 1rem;
    margin: none;
}

/* 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);
}