:root {
    /* Gruvbox (Default) */
    --bg-color: #1d2021;
    --fg-color: #ebdbb2;
    --accent-color: #fabd2f;
    --link-color: #fabd2f;
    --link-hover-color: #fe8019;
    --border-color: #3c3836;
}

/* Nord Theme */
body.theme-nord {
    --bg-color: #2e3440;
    --fg-color: #d8dee9;
    --accent-color: #88c0d0;
    --link-color: #88c0d0;
    --link-hover-color: #81a1c1;
    --border-color: #4c566a;
}

/* Base16 Eighties Theme */
body.theme-base16-eighties {
    --bg-color: #2d2d2d;
    --fg-color: #d3d0c8;
    --accent-color: #ffcc66;
    /* Yellow-ish */
    --link-color: #6699cc;
    /* Blue */
    --link-hover-color: #f2777a;
    /* Red */
    --border-color: #515151;
}

/* Gruvbox Light Theme */
body.theme-gruvbox-light {
    --bg-color: #fbf1c7;
    --fg-color: #3c3836;
    --accent-color: #d79921;
    --link-color: #d79921;
    --link-hover-color: #af3a03;
    --border-color: #ebdbb2;
}

/* Nord Light Theme */
body.theme-nord-light {
    --bg-color: #eceff4;
    --fg-color: #2e3440;
    --accent-color: #5e81ac;
    /* Nord10 */
    --link-color: #5e81ac;
    --link-hover-color: #81a1c1;
    /* Nord8 */
    --border-color: #d8dee9;
}

/* OneDark Theme */
body.theme-onedark {
    --bg-color: #282c34;
    --fg-color: #abb2bf;
    --accent-color: #61afef;
    /* Blue */
    --link-color: #61afef;
    --link-hover-color: #98c379;
    /* Green */
    --border-color: #4b5263;
}

/* Base16 Atelier Theme (Atelier Dune Light as reference or similar) - interpreting as Atelier Dune Dark/Light? 
   User asked for "base16-atelier". I'll use Atelier Dune Dark as it's common, or make a best guess.
   Actually user said "base16-atelier", let's assume Atelier Dune Dark for consistency or picking a popular one.
   Let's go with Atelier Sulphurpool Dark from base16 as a distinct look.
   Wait, user might want a specific atelier. I'll pick Atelier Dune Dark.
   Ref: https://github.com/chriskempson/base16-atelier-scheme
*/
body.theme-base16-atelier {
    --bg-color: #20201d;
    --fg-color: #a6a28c;
    --accent-color: #666633;
    --link-color: #ac9739;
    --link-hover-color: #d2943d;
    --border-color: #5c5a53;
}

/* Catppuccin Theme (Mocha) */
body.theme-catppuccin {
    --bg-color: #1e1e2e;
    --fg-color: #cdd6f4;
    --accent-color: #f5c2e7;
    /* Pink */
    --link-color: #89b4fa;
    /* Blue */
    --link-hover-color: #fab387;
    /* Peach */
    --border-color: #45475a;
}

body {
    font-family: "Courier New", Courier, monospace;
    line-height: 1.5;
    color: var(--fg-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    min-height: 100vh;
}

.layout-container {
    display: block;
    width: 100%;
    margin: 0;
    padding: 2em 0 2em 20%;
    box-sizing: border-box;
}

/* Left Sidebar */
.left-sidebar {
    text-align: left;
    padding-left: 2em;
    padding-right: 2em;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    width: 20%;
    height: 100vh;
    overflow-y: auto;
    box-sizing: border-box;
    padding-top: 2em;
    padding-bottom: 2em;
    background-color: var(--bg-color);
}

.left-sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.left-sidebar nav a {
    text-decoration: none;
    padding: 0;
    display: inline;
}

.left-sidebar nav a.nav-highlighted {
    background-color: var(--fg-color);
    color: var(--bg-color);
    text-decoration: none;
}

.left-sidebar nav a:hover {
    text-decoration: none;
}

/* Sidebar nav prompt */
.sidebar-nav-prompt {
    font-family: monospace;
    font-size: 1em;
    margin-bottom: 0.5em;
    white-space: nowrap;
    overflow: hidden;
    color: var(--fg-color);
    text-align: left;
}


.theme-options {
    display: flex;
    flex-direction: column;
    gap: 0.5em;
}

.theme-btn {
    background: none;
    border: none;
    color: var(--link-color);
    cursor: pointer;
    font-family: inherit;
    font-size: 1em;
    text-align: left;
    padding: 0;
}

.theme-btn:hover {
    color: var(--link-hover-color);
    text-decoration: underline;
}

/* Main Content */
.main-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2em;
}

/* Shared Styles */
h1,
h2,
h3 {
    margin-top: 1em;
    margin-bottom: 0.5em;
    color: var(--accent-color);
}

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

a:visited {
    color: var(--link-color);
}

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

ul {
    padding-left: 1.5em;
}

li {
    margin-bottom: 0.5em;
}

hr {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 2em 0;
}

.sidebar-separator {
    width: 100%;
    border: 0;
    border-top: none;
    margin: 1em 0;
    opacity: 0;
}

/* Footer Buttons */
.footer-buttons {
    display: flex;
    gap: 0.5em;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1em;
}

.footer-buttons a {
    display: inline-block;
}

.footer-buttons img {
    height: 31px;
    image-rendering: pixelated;
}

/* Toggle options (cat/snow) styled like theme buttons */
.toggle-option {
    background: none;
    border: none;
    color: var(--link-color);
    cursor: pointer;
    font-family: inherit;
    font-size: 1em;
    text-align: left;
    padding: 0;
    opacity: 0.5;
}

.toggle-option.enabled {
    opacity: 1;
}

.toggle-option:hover {
    color: var(--link-hover-color);
    text-decoration: underline;
}

/* Header/Footer specific overrides if needed */
header,
footer {
    text-align: center;
    margin-bottom: 2em;
}

/* Specific nav (socials) in header */
header nav a {
    font-weight: bold;
}

#header-art {
    font-family: monospace;
    white-space: pre;
    overflow-x: auto;
    text-align: center;
    line-height: 1.2;
    color: var(--accent-color);
    margin: 0 auto;
    font-weight: bold;
    display: inline-block;
    /* Helps in centering text-align parent */
}

.header-container {
    text-align: center;
    margin-bottom: 1em;
}

/* Terminal Animation Styles */
.terminal-prompt {
    font-family: monospace;
    font-size: 1em;
    margin-bottom: 0.5em;
    white-space: nowrap;
    overflow: hidden;
    color: var(--fg-color);
    text-align: left;
}

.prompt-user {
    color: #b8bb26;
    /* Green in Gruvbox */
    margin-right: 0.5em;
}

/* Theme overrides for prompt user color if needed */
body.theme-nord .prompt-user {
    color: #a3be8c;
    /* Nord Green */
}

body.theme-base16-eighties .prompt-user {
    color: #99cc99;
    /* Base16 Green */
}

body.theme-gruvbox-light .prompt-user {
    color: #98971a;
    /* Gruvbox Green */
}

body.theme-nord-light .prompt-user {
    color: #a3be8c;
    /* Nord Green */
}

body.theme-onedark .prompt-user {
    color: #98c379;
    /* OneDark Green */
}

body.theme-base16-atelier .prompt-user {
    color: #858533;
    /* Atelier Green */
}

body.theme-catppuccin .prompt-user {
    color: #a6e3a1;
    /* Catppuccin Green */
}

.prompt-command {
    color: var(--fg-color);
}

.terminal-cursor {
    display: inline-block;
    width: 0.6em;
    height: 1.2em;
    background-color: var(--fg-color);
    vertical-align: middle;
    margin-left: 2px;
    animation: blink 1s step-end infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

.terminal-output {
    opacity: 0;
    margin-top: 0;
    margin-bottom: 0.5em;
}

.terminal-output.visible {
    opacity: 1;
}

#clock {
    position: fixed;
    top: 10px;
    right: 10px;
    font-family: monospace;
    font-size: 1em;
    color: var(--fg-color);
    background-color: var(--bg-color);
    padding: 5px;
    border: 1px solid var(--border-color);
    z-index: 1000;
}

/* ===== Mobile Responsive ===== */
@media (max-width: 768px) {
    .layout-container {
        padding: 1em 0 1em 0;
    }

    /* Sidebar becomes a horizontal top bar */
    .left-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 0.5em 1em;
        flex-direction: row;
        align-items: center;
        justify-content: center;
        gap: 1em;
        width: 100%;
        height: auto;
        max-height: none;
        overflow-y: visible;
        background-color: var(--bg-color);
        z-index: 100;
        padding-top: 0.5em;
        padding-bottom: 0.5em;
    }

    .main-content {
        padding-top: 2.5em;
        /* Space for the top bar */
    }

    /* Hide the sidebar typing prompt on mobile */
    .sidebar-nav-prompt {
        display: none;
    }

    /* Nav links in a row */
    .left-sidebar nav {
        flex-direction: row;
        gap: 1em;
    }

    /* Hide theme options and separator on mobile */
    .theme-options,
    .sidebar-separator {
        display: none;
    }

    /* Main content spacing */
    .main-content {
        padding: 0 1em;
    }

    /* Scale down ASCII art */
    #header-art {
        font-size: 0.45em;
        overflow-x: auto;
        max-width: 100%;
    }

    .header-container {
        overflow-x: auto;
    }

    /* Allow terminal prompts to wrap */
    .terminal-prompt {
        white-space: normal;
        word-break: break-word;
    }

    /* Reduce header/footer margins */
    header,
    footer {
        margin-bottom: 1em;
    }

    hr {
        margin: 1em 0;
    }

    #clock {
        position: relative;
        top: 0;
        right: 0;
        text-align: center;
        margin-top: 1em;
        border: none;
        background: none;
        padding: 0;
    }
}