:root {
    --bg-color: #282c34;
    --text-color: #e0e0e0;
    --accent-color: #FFC107;
    --less-intense-accent-color: #B28704; /* Less intense version of light mode accent */
    --line-color: #444444;
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 20px;
    --spacing-lg: 40px;
    --spacing-xl: 80px;
    --font-size-body: 1em;
    --font-size-h1: 2.5em;
    --font-size-h2: 2em; /* Reverted h2 font size */
    --font-size-h3: 1.75em;
    --font-size-h4: 1.5em;
    --font-size-h5: 1.25em;
    --font-size-h6: 1em;
    --font-size-small: 0.8em;
    --line-height-body: 1.6;
    --line-height-heading: 1.2;
    --border-thickness: 1px;
    --content-max-width: 960px;
}

body.light-mode {
    --bg-color: #f8f8f8;
    --text-color: #333333;
    --accent-color: #8B4513;
    --less-intense-accent-color: rgba(139, 69, 19, 0.8); /* Less intense version of light mode accent */
    --line-color: #bbbbbb;
    --secondary-heading-color: var(--text-color); /* New variable */
}

body {
    margin: 0;
    padding: 0;
    font-family: "Fira Code", "Cascadia Code", "Source Code Pro", monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: var(--line-height-body);
    font-size: var(--font-size-body);
}

header,
main,
footer {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: var(--spacing-md);
}

header .header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

#site-navigation ul {
    display: flex;
    gap: var(--spacing-md);
}

#hamburger-menu {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5em;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 90px;
    height: 38px;
    margin-left: var(--spacing-md);
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5px;
    height: 100%;
    background-color: var(--line-color);
    -webkit-transition: .4s;
    transition: .4s;
    border-radius: 38px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 30px;
    width: 30px;
    left: 6px;
    background-color: var(--text-color);
    -webkit-transition: .4s;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-color);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--accent-color);
}

input:checked + .slider:before {
    -webkit-transform: translateX(48px);
    -ms-transform: translateX(48px);
    transform: translateX(48px);
}

.slider .icon {
    font-size: 1.2em;
    transition: opacity .4s;
}

.slider .light-icon {
    opacity: 0.5;
}

.slider .dark-icon {
    opacity: 1;
}

input:checked + .slider .light-icon {
    opacity: 1;
}

input:checked + .slider .dark-icon {
    opacity: 0.5;
}

@media (max-width: 768px) {
    #site-navigation {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: var(--bg-color);
        position: absolute;
        top: calc(var(--spacing-md) * 2 + 1em);
        left: 0;
        border-top: var(--border-thickness) solid var(--line-color);
        padding-top: var(--spacing-sm);
    }

    #site-navigation.active {
        display: flex;
    }

    #site-navigation ul {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm) 0;
    }

    #site-navigation li {
        margin-right: 0;
        text-align: center;
    }

    #hamburger-menu {
        display: block;
    }

    header .header-container {
        justify-content: space-between;
        flex-wrap: nowrap;
    }

    header h1 {
        flex-grow: 1;
    }

    .theme-switch {
        width: 50px;
        height: 28px;
        margin-left: var(--spacing-sm);
    }

    .slider:before {
        height: 20px;
        width: 20px;
        left: 3px;
        bottom: 3px;
    }

    input:checked + .slider:before {
        -webkit-transform: translateX(22px);
        -ms-transform: translateX(22px);
        transform: translateX(22px);
    }

    .slider .icon {
        font-size: 1em;
    }
}

header {
    border-bottom: var(--border-thickness) solid var(--line-color);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

header h1 {
    margin: 0;
    font-size: var(--font-size-h2);
    line-height: var(--line-height-heading);
}

header h1 a {
    color: var(--text-color);
    text-decoration: none;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

nav li {
    display: inline-block;
    margin-right: var(--spacing-md);
}

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

nav a:hover {
    text-decoration: underline;
}


h1, h2, h3, h4, h5, h6 { /* Keep shared margins */
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}
h1 { font-size: var(--font-size-h1); line-height: var(--line-height-heading); color: var(--accent-color); }
h2 {
    font-size: var(--font-size-h2);
    line-height: var(--line-height-heading);
    color: var(--less-intense-accent-color);
}
h3 { font-size: var(--font-size-h3); line-height: var(--line-height-heading); color: var(--less-intense-accent-color); }
h4 { font-size: var(--font-size-h4); line-height: var(--line-height-heading); color: var(--text-color); }
h5 { font-size: var(--font-size-h5); line-height: var(--line-height-heading); color: var(--text-color); }
h6 { font-size: var(--font-size-h6); line-height: var(--line-height-heading); color: var(--text-color); }

p {
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    text-decoration: underline;
}

footer {
    border-top: var(--border-thickness) solid var(--line-color);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-md);
    text-align: center;
    font-size: var(--font-size-small);
    color: var(--line-color);
}

/* Tag and Category Styling */
.tag-capsule {
    display: inline-block;
    background-color: rgba(68, 68, 68, 0.5); /* A subtle, semi-transparent background */
    color: var(--text-color); /* Text color for the capsule */
    padding: 0.2em 0.6em;
    border-radius: 0.8em; /* Pill shape */
    font-size: 0.9em;
    text-decoration: none;
    margin-right: 0.5em;
    margin-bottom: 0.5em; /* For wrapping */
    white-space: nowrap; /* Keep tag on one line */
    transition: background-color 0.3s ease, color 0.3s ease;
}

.tag-capsule:hover {
    background-color: var(--accent-color);
    color: var(--bg-color); /* Invert text color on hover */
}

/* Dimming for tags/categories text - removed direct color override */
/* The color is now inherited from .tag-capsule */