/* ==========================================================================
   Soft Terminal — A warm, modern aesthetic for mrkaran.dev
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
    /* Typography */
    --font-display: 'Instrument Serif', Georgia, serif;
    --font-body: 'Geist', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

    /* Light Mode Colors */
    --color-bg: #FAF9F7;
    --color-bg-elevated: #FFFFFF;
    --color-bg-subtle: #F3F1EE;
    --color-text: #1C1917;
    --color-text-secondary: #57534E;
    --color-text-muted: #A8A29E;
    --color-border: #E7E5E4;
    --color-border-subtle: #F0EEEC;

    /* Accent — Warm Terracotta */
    --color-accent: #C2410C;
    --color-accent-hover: #9A3412;
    --color-accent-subtle: #FFF7ED;
    --color-accent-muted: #FDBA74;

    /* Links */
    --color-link: #B45309;
    --color-link-hover: #92400E;
    --color-link-visited: #78716C;

    /* Tags */
    --color-tag-bg: #FEF3C7;
    --color-tag-text: #92400E;
    --color-tag-border: #FDE68A;

    /* Code */
    --color-code-bg: #F5F5F4;
    --color-code-text: #1C1917;

    /* Selection */
    --color-selection: #FED7AA;
    --color-selection-text: #1C1917;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(28, 25, 23, 0.04);
    --shadow-md: 0 4px 12px rgba(28, 25, 23, 0.06);
    --shadow-lg: 0 12px 32px rgba(28, 25, 23, 0.08);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Layout */
    --max-width: 720px;
    --header-height: 80px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
}

/* Dark Mode */
:root[data-theme="dark"],
body[data-theme="dark"] {
    --color-bg: #0C0A09;
    --color-bg-elevated: #1C1917;
    --color-bg-subtle: #1C1917;
    --color-text: #FAFAF9;
    --color-text-secondary: #A8A29E;
    --color-text-muted: #78716C;
    --color-border: #292524;
    --color-border-subtle: #1C1917;

    --color-accent: #FB923C;
    --color-accent-hover: #FDBA74;
    --color-accent-subtle: #1C1917;
    --color-accent-muted: #9A3412;

    --color-link: #FB923C;
    --color-link-hover: #FDBA74;
    --color-link-visited: #A8A29E;

    --color-tag-bg: #292524;
    --color-tag-text: #FDBA74;
    --color-tag-border: #44403C;

    --color-code-bg: #1C1917;
    --color-code-text: #FAFAF9;

    --color-selection: #9A3412;
    --color-selection-text: #FAFAF9;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);
}

/* --------------------------------------------------------------------------
   Base & Reset
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* Noise texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.02;
    z-index: 9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

::selection {
    background-color: var(--color-selection);
    color: var(--color-selection-text);
}

::-moz-selection {
    background-color: var(--color-selection);
    color: var(--color-selection-text);
}

/* --------------------------------------------------------------------------
   Container & Layout
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

header, main, footer {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
}

main {
    flex: 1;
    padding-top: var(--space-xl);
    padding-bottom: var(--space-3xl);
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 400;
    color: var(--color-text);
    line-height: 1.25;
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2.75rem;
    margin-top: 0;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5, h6 {
    font-size: 1.125rem;
    font-family: var(--font-body);
    font-weight: 600;
}

p {
    margin-top: 0;
    margin-bottom: var(--space-lg);
}

strong, b {
    font-weight: 600;
    color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Links
   -------------------------------------------------------------------------- */
a {
    color: var(--color-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Underline style for content links */
article a:not(.tag):not(.zola-anchor),
main p a,
main li a {
    text-decoration: underline;
    text-decoration-color: var(--color-accent-muted);
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

article a:not(.tag):not(.zola-anchor):hover,
main p a:hover,
main li a:hover {
    text-decoration-color: var(--color-link-hover);
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
header {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border-subtle);
}

.title {
    text-decoration: none;
    display: inline-block;
}

.title:hover {
    opacity: 0.8;
}

.name {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 400;
    margin: 0 0 var(--space-lg) 0;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

.nav-items {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.nav-items a {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
    text-decoration: none;
}

.nav-items a:hover {
    color: var(--color-text);
    background-color: var(--color-bg-subtle);
}

.terminal-link {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-accent) !important;
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-sm);
    padding: var(--space-xs) var(--space-sm) !important;
    margin-left: var(--space-sm);
}

.terminal-link:hover {
    background-color: var(--color-accent) !important;
    color: var(--color-bg) !important;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    flex-shrink: 0;
    margin-left: var(--space-sm);
}

.theme-toggle:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}

.theme-toggle i,
.theme-toggle svg {
    width: 18px;
    height: 18px;
}

body[data-theme="dark"] .theme-toggle {
    background: var(--color-bg-elevated);
    color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Home Page
   -------------------------------------------------------------------------- */
.home-container {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.home-content {
    flex: 1;
}

.home-content p:first-of-type {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.home-image {
    flex-shrink: 0;
    width: 140px;
}

.img-rounded {
    width: 100%;
    border-radius: var(--radius-full);
    border: 3px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.img-rounded:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   Blog Post Lists
   -------------------------------------------------------------------------- */
ul.blog-posts {
    list-style: none;
    padding: 0;
    margin: 0;
}

ul.blog-posts li {
    display: flex;
    align-items: baseline;
    gap: var(--space-lg);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border-subtle);
    transition: background-color var(--transition-fast);
}

ul.blog-posts li:last-child {
    border-bottom: none;
}

ul.blog-posts li:hover {
    background-color: var(--color-bg-subtle);
    margin-left: calc(-1 * var(--space-md));
    margin-right: calc(-1 * var(--space-md));
    padding-left: var(--space-md);
    padding-right: var(--space-md);
    border-radius: var(--radius-sm);
}

ul.blog-posts li span {
    flex: 0 0 110px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

ul.blog-posts li a {
    color: var(--color-text);
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul.blog-posts li a:hover {
    color: var(--color-link);
}

ul.blog-posts li a:visited {
    color: var(--color-link-visited);
}

/* --------------------------------------------------------------------------
   Article / Post Page
   -------------------------------------------------------------------------- */
article {
    line-height: 1.75;
}

article h1 {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--space-lg);
    margin-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
}

.post-date,
.reading-time {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

/* Section Headers */
.section-header {
    margin-bottom: var(--space-xl);
}

.section-header h1 {
    margin-bottom: var(--space-sm);
}

.section-description {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* Anchor Links */
h2, h3, h4, h5, h6 {
    position: relative;
}

.zola-anchor {
    font-family: var(--font-mono);
    font-size: 0.75em;
    font-weight: 400;
    color: var(--color-text-muted);
    text-decoration: none;
    margin-left: var(--space-sm);
    opacity: 0;
    transition: opacity var(--transition-fast), color var(--transition-fast);
    vertical-align: middle;
}

h2:hover .zola-anchor,
h3:hover .zola-anchor,
h4:hover .zola-anchor,
h5:hover .zola-anchor,
h6:hover .zola-anchor {
    opacity: 0.5;
}

.zola-anchor:hover {
    opacity: 1;
    color: var(--color-link);
}

/* --------------------------------------------------------------------------
   Tags
   -------------------------------------------------------------------------- */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin: var(--space-lg) 0;
}

.tags > a,
a.tag {
    display: inline-flex;
    align-items: center;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-tag-text);
    background-color: var(--color-tag-bg);
    border: 1px solid var(--color-tag-border);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition-fast);
    text-transform: lowercase;
}

.tags > a:hover,
a.tag:hover {
    background-color: var(--color-accent-subtle);
    border-color: var(--color-accent-muted);
}

/* Section Tags (bottom of section pages) */
.section-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-2xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-subtle);
}

.section-tags a {
    text-transform: lowercase;
}

/* --------------------------------------------------------------------------
   Code & Pre
   -------------------------------------------------------------------------- */
code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    font-weight: 400;
    background-color: var(--color-code-bg);
    color: var(--color-code-text);
    padding: 0.2em 0.45em;
    border-radius: var(--radius-sm);
    -webkit-font-smoothing: antialiased;
}

/* Code block container */
pre {
    position: relative;
    background-color: #0B0E14;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: var(--space-xl) 0;
    box-shadow:
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Code inside pre */
pre code {
    display: block;
    padding: var(--space-lg) var(--space-xl);
    font-size: 0.875rem;
    line-height: 1.7;
    white-space: pre;
    background: transparent;
    color: #E6EDF3; /* Light text color for dark background */
    border-radius: 0;
    overflow-x: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "liga" 1, "calt" 1; /* Enable ligatures */
}

/* Scrollbar styling for code blocks */
pre code::-webkit-scrollbar {
    height: 8px;
}

pre code::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

pre code::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

pre code::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* Syntax highlighting theme overrides for consistency */
pre[class^="language-"],
code[class^="language-"] {
    background-color: inherit;
    color: inherit;
}

/* Ensure plain code blocks (without language/syntax highlighting) have light text */
pre:not([class]) code:not([class]) {
    color: #E6EDF3 !important;
}

/* Light mode code block adjustments */
body:not([data-theme="dark"]) pre {
    background-color: #0B0E14;
}

/* Line numbers (if enabled) */
pre .line-number {
    color: rgba(255, 255, 255, 0.3);
    user-select: none;
    padding-right: var(--space-md);
    text-align: right;
    min-width: 2.5em;
}

/* Code Copy Button */
.code-copy-btn {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.5);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-fast), background var(--transition-fast);
    z-index: 1;
}

pre:hover .code-copy-btn {
    opacity: 1;
}

.code-copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
}

.code-copy-btn.copied {
    color: #4ADE80;
    border-color: #4ADE80;
}

/* --------------------------------------------------------------------------
   Blockquote
   -------------------------------------------------------------------------- */
blockquote {
    margin: var(--space-xl) 0;
    padding: var(--space-md) var(--space-lg);
    border-left: 3px solid var(--color-accent);
    background-color: var(--color-bg-subtle);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

blockquote p:last-child {
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Admonitions
   -------------------------------------------------------------------------- */
.admonition {
    margin: var(--space-xl) 0;
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-border);
    background-color: var(--color-bg-subtle);
}

.admonition .admonition-header {
    display: flex;
    align-items: center;
    font-weight: 600;
    font-size: 0.9375rem;
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.admonition.note {
    background-color: #EFF6FF;
    border-color: #3B82F6;
}

body[data-theme="dark"] .admonition.note {
    background-color: #172554;
    border-color: #60A5FA;
}

.admonition.warning {
    background-color: #FEF2F2;
    border-color: #EF4444;
}

body[data-theme="dark"] .admonition.warning {
    background-color: #450A0A;
    border-color: #F87171;
}

.admonition.info {
    background-color: #F0FDFA;
    border-color: #14B8A6;
}

body[data-theme="dark"] .admonition.info {
    background-color: #042F2E;
    border-color: #2DD4BF;
}

.admonition.tip {
    background-color: #F0FDF4;
    border-color: #22C55E;
}

body[data-theme="dark"] .admonition.tip {
    background-color: #052E16;
    border-color: #4ADE80;
}

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */
table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-lg) 0;
    font-size: 0.9375rem;
}

th, td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

th {
    font-weight: 600;
    color: var(--color-text);
    background-color: var(--color-bg-subtle);
}

tr:hover td {
    background-color: var(--color-bg-subtle);
}

/* --------------------------------------------------------------------------
   Images & Figures
   -------------------------------------------------------------------------- */
img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

figure {
    margin: var(--space-xl) 0;
    padding: 0;
    background: transparent;
    box-shadow: none;
}

figure img {
    display: block;
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

figure img:hover {
    transform: scale(1.01);
    box-shadow: var(--shadow-lg);
}

figcaption {
    text-align: center;
    margin-top: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* Image Grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.image-grid a {
    display: block;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.image-grid img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
    transition: transform var(--transition-base);
}

.image-grid a:hover img {
    transform: scale(1.03);
}

.image-grid a:nth-child(odd):last-child {
    grid-column: 1 / -1;
    max-width: 50%;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Lightbox
   -------------------------------------------------------------------------- */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(12, 10, 9, 0.95);
    cursor: pointer;
    backdrop-filter: blur(8px);
}

.lightbox-modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn var(--transition-base);
}

.lightbox-modal img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    animation: zoomIn var(--transition-base);
    cursor: default;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.lightbox-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-xl);
    color: #FAFAF9;
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    transition: opacity var(--transition-fast);
    opacity: 0.7;
}

.lightbox-close:hover {
    opacity: 1;
}

.lightbox-thumbnail {
    cursor: zoom-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes zoomIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* --------------------------------------------------------------------------
   Projects
   -------------------------------------------------------------------------- */
.projects-section {
    width: 100%;
}

.projects-section h2 {
    font-size: 1.5rem;
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
}

.projects-section h2:first-child {
    margin-top: 0;
}

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
input, textarea {
    font-family: var(--font-body);
    font-size: 1rem;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-elevated);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

textarea {
    width: 100%;
    min-height: 120px;
    resize: vertical;
}

/* --------------------------------------------------------------------------
   Projects List
   -------------------------------------------------------------------------- */
ul.projects-list-simple {
    list-style: none !important;
    padding-left: 0 !important;
    margin: 0;
}

ul.projects-list-simple li::marker {
    content: none;
}

.projects-list-simple li {
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border-subtle);
}

.projects-list-simple li:last-child {
    border-bottom: none;
}

.project-info {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
}

.project-title {
    font-weight: 600;
    font-size: 1.0625rem;
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.project-title:hover {
    color: var(--color-link);
}

.project-description {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin: var(--space-xs) 0 0 0;
    line-height: 1.6;
}

/* Project Detail Page */
.project-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.project-github-link {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-accent-subtle);
    color: var(--color-accent) !important;
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none !important;
    transition: all var(--transition-fast);
}

.project-github-link:hover {
    background: var(--color-accent);
    color: var(--color-bg) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
footer {
    padding: var(--space-2xl) var(--space-lg);
    text-align: center;
    border-top: 1px solid var(--color-border-subtle);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.terminal-mode-link {
    margin-top: var(--space-lg);
}

.terminal-cta {
    display: inline-block;
    padding: var(--space-sm) var(--space-xl);
    background: var(--color-accent-subtle);
    color: var(--color-accent) !important;
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.terminal-cta:hover {
    background: var(--color-accent);
    color: var(--color-bg) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-md);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.social-icon:hover {
    color: var(--color-text);
    background-color: var(--color-bg-subtle);
}

.social-icon svg,
.social-icon i {
    width: 20px;
    height: 20px;
}

/* --------------------------------------------------------------------------
   YouTube Embeds
   -------------------------------------------------------------------------- */
.youtube-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    margin: var(--space-xl) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.youtube-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   Lists
   -------------------------------------------------------------------------- */
ul, ol {
    padding-left: var(--space-lg);
    margin-bottom: var(--space-lg);
}

li {
    margin-bottom: var(--space-sm);
}

li::marker {
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Horizontal Rule
   -------------------------------------------------------------------------- */
hr {
    border: none;
    height: 1px;
    background: var(--color-border);
    margin: var(--space-2xl) 0;
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

main {
    animation: fadeInUp 0.5s ease-out;
}

/* Theme transition */
.theme-transition {
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* --------------------------------------------------------------------------
   Search
   -------------------------------------------------------------------------- */
.search-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.search-btn:hover {
    background: var(--color-bg-elevated);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}

.search-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10001;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    justify-content: center;
    padding-top: 20vh;
}

.search-overlay.active {
    display: flex;
}

.search-modal {
    width: 100%;
    max-width: 560px;
    max-height: 60vh;
    margin: 0 var(--space-md);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-self: flex-start;
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.search-input-wrapper input {
    flex: 1;
    border: none;
    background: transparent;
    font-family: var(--font-body);
    font-size: 1.0625rem;
    color: var(--color-text);
    outline: none;
    padding: 0;
}

.search-kbd {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    padding: 2px 6px;
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
}

.search-results {
    overflow-y: auto;
    padding: var(--space-sm);
}

.search-result-item {
    display: block;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.search-result-item:hover {
    background: var(--color-bg-subtle);
}

.search-result-title {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

.search-result-body {
    display: block;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.search-no-results {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-xl);
    font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   Related Posts
   -------------------------------------------------------------------------- */
.related-posts {
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border-subtle);
}

.related-posts h2 {
    font-size: 1.25rem;
    margin-top: 0;
}

/* --------------------------------------------------------------------------
   Reading Progress Bar
   -------------------------------------------------------------------------- */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--color-accent);
    z-index: 10000;
    transition: width 50ms linear;
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media screen and (max-width: 768px) {
    :root {
        --max-width: 100%;
    }

    html {
        font-size: 15px;
    }

    h1 {
        font-size: 2.25rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .name {
        font-size: 1.5rem;
    }

    header, main, footer {
        padding-left: var(--space-md);
        padding-right: var(--space-md);
    }

    .home-container {
        flex-direction: column-reverse;
        align-items: center;
        text-align: center;
        gap: var(--space-lg);
    }

    .home-image {
        width: 120px;
    }

    ul.blog-posts li {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }

    ul.blog-posts li span {
        flex: none;
    }

    ul.blog-posts li:hover {
        margin-left: 0;
        margin-right: 0;
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
    }

    .meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }

    .image-grid {
        grid-template-columns: 1fr;
    }

    .image-grid a:nth-child(odd):last-child {
        grid-column: auto;
        max-width: 100%;
    }
}

@media screen and (max-width: 480px) {
    h1 {
        font-size: 1.875rem;
    }

    .nav-items a {
        font-size: 0.875rem;
        padding: var(--space-xs);
    }

    .theme-toggle {
        width: 36px;
        height: 36px;
    }

    article h1 {
        font-size: 1.75rem;
    }
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
    body::before {
        display: none;
    }

    header, footer, .theme-toggle {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    a {
        color: black;
        text-decoration: underline;
    }

    pre, code {
        border: 1px solid #ccc;
    }
}

/* --------------------------------------------------------------------------
   Difficulty Level Toggle
   -------------------------------------------------------------------------- */

.difficulty-selector {
    margin: var(--space-xl) 0;
}

.difficulty-label {
    display: block;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.difficulty-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    background: var(--color-bg-subtle);
}

.diff-btn {
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-right: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-secondary);
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.diff-btn:last-child {
    border-right: none;
}

.diff-btn:hover {
    color: var(--color-accent);
    background: var(--color-bg);
}

.diff-btn.active {
    background: var(--color-accent);
    color: white;
}

/* Content visibility by difficulty level */
[data-difficulty] {
    display: none;
}

.difficulty-beginner [data-difficulty~="beginner"] {
    display: block;
}

.difficulty-intermediate [data-difficulty~="intermediate"] {
    display: block;
}

.difficulty-advanced [data-difficulty~="advanced"] {
    display: block;
}