/* --- Google Font Import --- */
@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;600;700&display=swap');

/* --- CSS Variables --- */
:root {
    --bg-color: #0d1117;
    --panel-color: #161b22;
    --text-color: #c9d1d9;
    --heading-color: #e6edf3;
    --accent-color-1: #00ffff; /* Cyan */
    --accent-color-2: #f0f;   /* Magenta */
    --border-color: rgba(0, 255, 255, 0.2);
    --font-main: 'Fira Code', monospace;
    --container-width: 1200px;
}

/* --- General Resets & Body --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.8;
    font-size: 16px;
    padding-top: 80px; /* Space for fixed header */
}

/* --- Typography --- */
h1, h2, h3, h4 {
    color: var(--heading-color);
    margin-bottom: 1.25rem;
    line-height: 1.4;
    font-weight: 600;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; text-align: center; margin-bottom: 2.5rem; color: var(--accent-color-1); }
h3 { font-size: 1.4rem; }
p { margin-bottom: 1rem; }

a {
    color: var(--accent-color-1);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--accent-color-2);
    text-shadow: 0 0 10px var(--accent-color-2);
}

ul, ol {
    margin-left: 20px;
    margin-bottom: 1rem;
    padding-left: 15px;
}
ul li::marker {
    content: '>> ';
    color: var(--accent-color-1);
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

/* --- Layout & Containers --- */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 2rem 0;
}

.main-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

/* --- Header & Navigation --- */
.site-header {
    background: rgba(13, 17, 23, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.header-content {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--heading-color);
    text-shadow: 0 0 5px var(--accent-color-1);
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

.main-nav a {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-color);
    padding: 0.5rem 0;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--accent-color-1);
    text-shadow: 0 0 8px var(--accent-color-1);
}

/* --- Panels & Cards --- */
.panel {
    background: var(--panel-color);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
}

/* --- Homepage Specific --- */
.intro-section {
    text-align: center;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
}
.intro-section h1 {
    font-size: 3rem;
    color: var(--accent-color-1);
}
.intro-section p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

.article-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.article-preview {
    background: var(--panel-color);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.article-preview:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 15px var(--accent-color-1);
    border-color: var(--accent-color-1);
}

.article-preview-image img {
    aspect-ratio: 16 / 9;
    object-fit: cover;
    width: 100%;
}

.article-preview-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.article-preview h3 a { color: var(--heading-color); }
.article-preview:hover h3 a { color: var(--accent-color-1); }

.read-more-link {
    display: inline-block;
    margin-top: auto;
    font-weight: 600;
    align-self: flex-start;
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent-color-1);
}
.read-more-link:hover { background: var(--accent-color-1); color: var(--bg-color); }


/* --- Article & Page Content --- */
.article-header {
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
}

.article-header-image {
    max-height: 400px;
    overflow: hidden;
    margin-bottom: 2.5rem;
    border: 1px solid var(--border-color);
}
.article-header-image img {
    width: 100%;
    object-fit: cover;
}

.article-meta {
    font-size: 0.9rem;
    color: #8b949e;
    margin-top: 1rem;
}
.article-meta span { margin: 0 1rem; }

/* --- Sidebar --- */
.sidebar .widget {
    background: var(--panel-color);
    border: 1px solid var(--border-color);
    padding: 2rem;
    margin-bottom: 2rem;
}
.sidebar .widget:last-child { margin-bottom: 0; }

.widget-title {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--accent-color-1);
    font-weight: 600;
}

.widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.widget ul li { margin-bottom: 0.75rem; }
.widget ul li a { font-weight: 400; }

/* --- Footer --- */
.site-footer {
    text-align: center;
    padding: 2.5rem 0;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    background: #010409;
}

.footer-links {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 0;
}
.footer-links a { font-weight: 600; }
.footer-content p { font-size: 0.9rem; }

/* --- Media Queries --- */
@media (max-width: 900px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    body { padding-top: 120px; }
}

@media (min-width: 768px) {
    .article-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 992px) {
    .main-layout { grid-template-columns: 2.5fr 1fr; }
}

@media (min-width: 1200px) {
    .article-grid { grid-template-columns: repeat(3, 1fr); }
}