/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@300;400;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg-color: #fcfbf7;
    /* Ancient paper */
    --text-color: #1a1a1a;
    /* Ink black */
    --accent-color: #4a4a4a;
    /* Graphite */
    --border-color: #d1d1cf;
    --neon-glow: rgba(0, 150, 255, 0.4);
    --neon-text: #0066cc;
    --header-font: 'Outfit', sans-serif;
    --body-font: 'Inter', sans-serif;
    --mono-font: 'JetBrains Mono', monospace;
}

[data-theme="dark"] {
    --bg-color: #0a0a0c;
    /* Deeper dark */
    --text-color: #e0e0e0;
    --accent-color: #00d4ff;
    /* Neon Cyan */
    --border-color: #1a1a1f;
    --neon-glow: rgba(0, 212, 255, 0.5);
    --neon-text: #00d4ff;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--body-font);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Compact Header Styles */
/* Header Styles */
/* Header Styles */
/* Header Styles */
.site-header {
    position: relative;
    width: 100%;
    height: 250px;
    /* Space to show the watercolor */
    margin-bottom: 3rem;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 5px 30px -10px var(--neon-glow);
}

.site-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, var(--neon-glow) 0%, transparent 70%);
    opacity: 0.15;
    z-index: 1;
    pointer-events: none;
}

.header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background-color: var(--bg-color);
    /* Digital Grid + Diagonal Traces with Neon touch */
    background-image:
        linear-gradient(var(--neon-text) 0.5px, transparent 0.5px),
        linear-gradient(90deg, var(--neon-text) 0.5px, transparent 0.5px),
        linear-gradient(45deg, transparent 48%, var(--neon-glow) 49%, var(--neon-glow) 51%, transparent 52%),
        radial-gradient(var(--neon-text) 1.5px, transparent 1.5px);
    background-size: 60px 60px, 60px 60px, 120px 120px, 120px 120px;
    background-position: center center;
    opacity: 0.12;
}

/* Subtle Pulsing Effect */
@keyframes techPulse {
    0% {
        opacity: 0.12;
    }

    50% {
        opacity: 0.18;
    }

    100% {
        opacity: 0.12;
    }
}

.header-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            var(--border-color) 3px,
            transparent 3px);
    background-size: 100% 4px;
    opacity: 0.1;
    pointer-events: none;
    animation: techPulse 8s infinite ease-in-out;
}

/* Sparks Configuration */
.header-spark-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
    opacity: 0.6;
}

[data-theme="dark"] .header-spark-container {
    opacity: 1;
}

.spark {
    position: absolute;
    box-shadow: 0 0 10px var(--neon-text);
    border-radius: 2px;
    opacity: 0;
    will-change: transform, opacity;
}

.spark-h {
    height: 1.5px;
    width: 150px;
    background: linear-gradient(90deg, transparent, var(--neon-text) 80%, transparent);
}

.spark-v {
    width: 1.5px;
    height: 150px;
    background: linear-gradient(180deg, transparent, var(--neon-text) 80%, transparent);
}

.spark-h1 { top: calc(50% - 60px); left: 0; animation: spark-x 5s infinite linear; animation-delay: 1s; }
.spark-h2 { top: calc(50% + 60px); left: 0; animation: spark-x-rev 7s infinite linear; animation-delay: 3s; }
.spark-h3 { top: calc(50% + 120px); left: 0; animation: spark-x 6s infinite linear; animation-delay: 0.5s; }

.spark-v1 { left: calc(50% - 120px); top: 0; animation: spark-y 6s infinite linear; animation-delay: 2s; }
.spark-v2 { left: calc(50% + 60px); top: 0; animation: spark-y-rev 8s infinite linear; animation-delay: 4s; }
.spark-v3 { left: calc(50% + 180px); top: 0; animation: spark-y 4.5s infinite linear; animation-delay: 1.5s; }

@keyframes spark-x {
    0% { transform: translateX(-200px); opacity: 0; }
    5% { opacity: 1; }
    95% { opacity: 1; }
    100% { transform: translateX(110vw); opacity: 0; }
}

@keyframes spark-x-rev {
    0% { transform: translateX(110vw) scaleX(-1); opacity: 0; }
    5% { opacity: 1; }
    95% { opacity: 1; }
    100% { transform: translateX(-200px) scaleX(-1); opacity: 0; }
}

@keyframes spark-y {
    0% { transform: translateY(-200px); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(400px); opacity: 0; }
}

@keyframes spark-y-rev {
    0% { transform: translateY(400px) scaleY(-1); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-200px) scaleY(-1); opacity: 0; }
}

.header-split-container {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
}

.network-nav {
    position: absolute;
    top: -4rem;
    left: 2rem;
}

.network-link {
    font-family: var(--header-font);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-color);
    text-decoration: none;
    border: none !important;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.network-link:hover {
    opacity: 1;
    text-shadow: 0 0 8px var(--neon-glow);
}

h1.site-title {
    font-family: var(--header-font);
    font-size: 4rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -1px;
    margin: 0;
    line-height: 0.9;
    white-space: nowrap;
    background-color: transparent;
    padding: 1rem 2rem;
    border: none;
    box-shadow: none;
    text-shadow: 0 0 10px var(--neon-glow);
    transition: all 0.3s ease;
}

[data-theme="dark"] h1.site-title {
    background-color: transparent;
}

h1.site-title a {
    color: var(--text-color) !important;
    text-decoration: none;
    border: none;
}

[data-theme="dark"] h1.site-title a {
    color: var(--text-color) !important;
}

h1.page-title {
    font-family: var(--header-font);
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    text-align: center;
    margin-bottom: 2rem;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

article {
    margin-bottom: 4rem;
}

/* Typography */
p {
    font-size: 1.1rem;
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

blockquote {
    border-left: 2px solid var(--neon-text);
    padding: 1rem 0 1rem 2rem;
    margin: 2.5rem 0;
    font-style: normal;
    font-weight: 400;
    color: var(--neon-text);
    background: rgba(var(--neon-text), 0.03);
}


a {
    color: var(--neon-text);
    text-decoration: none;
    border-bottom: 1px dotted var(--neon-text);
    transition: all 0.2s;
}

a:hover {
    border-bottom: 1px solid var(--neon-text);
    text-shadow: 0 0 5px var(--neon-glow);
}

.meta {
    font-size: 0.9rem;
    color: #666;
    text-align: center;
    font-style: italic;
    margin-bottom: 2rem;
}

[data-theme="dark"] .meta {
    color: #aaa;
}

/* Toggle Switch */
.theme-toggle {
    position: absolute;
    top: 10px;
    right: 20px;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem;
    cursor: pointer;
    font-family: var(--header-font);
    font-size: 0.8rem;
    z-index: 10;
}

/* Post list */
.post-list {
    list-style: none;
    padding: 0;
}

.post-item {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.post-item a {
    font-family: var(--header-font);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.3px;
    border: none;
}

/* Markdown Content Styling (Prose) */
.content {
    animation: fadeInUp 0.8s ease-out;
}

.content h1,
.content h2,
.content h3,
.content h4 {
    font-family: var(--header-font);
    color: var(--text-color);
    margin-top: 3rem;
    margin-bottom: 1.2rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.content h2 {
    font-size: 2.2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.content h3 {
    font-size: 1.6rem;
}

.content p {
    margin-bottom: 1.8rem;
    font-size: 1.15rem;
    color: var(--text-color);
    opacity: 0.9;
}

.content ul,
.content ol {
    margin-bottom: 1.8rem;
    padding-left: 1.5rem;
}

.content li {
    margin-bottom: 0.6rem;
    font-size: 1.1rem;
}

/* Inline Code */
.content :not(pre)>code {
    font-family: var(--mono-font);
    background: rgba(0, 212, 255, 0.1);
    color: var(--neon-text);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-size: 0.9em;
    font-weight: 500;
}

/* Code Blocks */
/* Copy Button */
.copy-button {
    position: absolute;
    top: 0.8rem;
    right: 0.8rem;
    padding: 0.4rem 0.7rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-family: var(--header-font);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 6px;
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10;
    backdrop-filter: blur(4px);
}

div:hover>.copy-button {
    opacity: 0.8;
}

.copy-button:hover {
    opacity: 1 !important;
    background: var(--neon-glow);
    color: white;
    border-color: var(--neon-text);
    box-shadow: 0 0 15px var(--neon-glow);
}

.copy-button.copied {
    background: #238636;
    border-color: #2ea043;
    color: white;
    opacity: 1 !important;
}

.content pre {
    margin: 2.5rem 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 15px 40px -10px rgba(0, 0, 0, 0.2);
    background: #0d1117;
    /* Fallback github dark */
    width: 100%;
    /* Ensure it takes full width of container */
}

[data-theme="light"] .content pre {
    background: #f6f8fa;
    /* Fallback github light */
}

.content pre code {
    font-family: var(--mono-font);
    font-size: 0.95rem;
    line-height: 1.6;
    display: block;
    padding: 1.5rem;
}

/* Blockquotes */
.content blockquote {
    margin: 2.5rem 0;
    padding: 1.5rem 2rem;
    border-left: 4px solid var(--neon-text);
    background: rgba(0, 212, 255, 0.03);
    border-radius: 0 8px 8px 0;
    font-style: italic;
}

.content blockquote p {
    margin-bottom: 0;
    color: var(--neon-text);
}

/* Images */
.content img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 2rem 0;
    border: 1px solid var(--border-color);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Table of Contents */
.table-of-contents {
    margin: 2rem 0 3rem 0;
    padding: 1.5rem 2rem;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

[data-theme="dark"] .table-of-contents {
    background: rgba(255, 255, 255, 0.03);
}

.table-of-contents h3 {
    font-family: var(--header-font);
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--accent-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.table-of-contents nav ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.table-of-contents nav li {
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.table-of-contents a {
    text-decoration: none;
    border-bottom: none;
    color: var(--text-color);
    opacity: 0.8;
    transition: opacity 0.2s, color 0.2s;
}

.table-of-contents a:hover {
    opacity: 1;
    color: var(--accent-color);
    border-bottom: 1px solid var(--accent-color);
}

.toc-level-2 {
    margin-left: 0;
    font-weight: 700;
}


/* Collapsible Code Blocks */
pre.collapsed {
    max-height: 300px;
    overflow: hidden;
    mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
    border-bottom: none;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.expand-button {
    display: block;
    width: 100%;
    padding: 0.8rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    color: var(--neon-text);
    text-align: center;
    cursor: pointer;
    font-family: var(--header-font);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border-radius: 0 0 12px 12px;
    margin-top: -1px;
    backdrop-filter: blur(4px);
}

.expand-button:hover {
    background: rgba(0, 212, 255, 0.1);
    box-shadow: 0 0 10px var(--neon-glow);
}