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

:root {
    --primary-font: 'Fira Code', monospace;
    --background-color: #0a0a1a;
    --surface-color: #1a1a2e;
    --text-color: #e0e0e0;
    --accent-color: #00f0ff;
    --glow-color: rgba(0, 240, 255, 0.5);
    --border-color: rgba(0, 240, 255, 0.2);
    --container-width: 1200px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--primary-font);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7;
    font-size: 16px;
    text-rendering: optimizeLegibility;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

a:hover {
    color: #fff;
    text-shadow: 0 0 8px var(--glow-color);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

/* Header */
.site-header {
    background-color: var(--surface-color);
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.site-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--accent-color);
    text-shadow: 0 0 10px var(--glow-color);
    letter-spacing: 2px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.main-nav a {
    color: var(--text-color);
    font-weight: 400;
    font-size: 1rem;
    letter-spacing: 1px;
    padding: 5px 10px;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.main-nav a:hover, .main-nav a.active {
    color: var(--accent-color);
    border-color: var(--border-color);
    background-color: rgba(0, 240, 255, 0.05);
}

/* Main Content */
main {
    padding: 40px 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
    color: #fff;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Featured Article */
.featured-article article {
    background: var(--surface-color);
    margin-bottom: 40px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.featured-article .article-content {
    padding: 30px;
}

.featured-article h2 {
    font-size: 2.2rem;
    line-height: 1.2;
    margin-bottom: 15px;
    font-weight: 600;
}

.featured-article h2 a {
    color: #fff;
}
.featured-article h2 a:hover {
    color: var(--accent-color);
}

.featured-article p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #b0b0c0;
}

.category-tag {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--background-color);
    padding: 4px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
    border-radius: 2px;
}

.read-more {
    font-weight: 600;
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.grid-item {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    border-radius: 4px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.grid-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2), 0 0 15px var(--glow-color);
}


.grid-item .article-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.grid-item h3 {
    font-size: 1.4rem;
    line-height: 1.3;
    margin-bottom: 10px;
    flex-grow: 1;
    font-weight: 600;
}

.grid-item h3 a {
    color: #fff;
}

.grid-item h3 a:hover {
    color: var(--accent-color);
}

.grid-item p {
    color: #b0b0c0;
}


/* Footer */
.site-footer {
    background-color: #050510;
    color: #aaa;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
}

/* Article & Category Pages */
.page-header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px;
    background-image: linear-gradient(rgba(10, 10, 26, 0.8), rgba(10, 10, 26, 0.8));
    border: 1px solid var(--border-color);
}
.page-header h1 {
    font-size: 3rem;
    font-weight: 600;
    color: var(--accent-color);
}

.article-page-layout {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 50px;
}

.article-content-main {
    background-color: var(--surface-color);
    padding: 40px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.article-header h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 15px;
    font-weight: 600;
    color: #fff;
}

.article-meta {
    color: #888;
    margin-bottom: 25px;
    font-size: 0.9rem;
}

.article-meta span {
    margin-right: 15px;
}

.article-content-main p {
    margin-bottom: 1.5em;
    color: #b0b0c0;
}

.article-content-main h2 {
    font-size: 1.8rem;
    margin-top: 2em;
    margin-bottom: 1em;
    font-weight: 600;
    color: var(--accent-color);
}

.article-content-main h3 {
    font-size: 1.5rem;
    margin-top: 1.5em;
    margin-bottom: 0.8em;
    font-weight: 600;
    color: var(--accent-color);
}

/* Sidebar */
.sidebar {
    padding-top: 0;
}

.sidebar-widget {
    background-color: var(--surface-color);
    padding: 25px;
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.sidebar-widget h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: #fff;
}

.sidebar-widget ul {
    list-style: none;
}

.sidebar-widget ul li {
    margin-bottom: 15px;
}

.sidebar-widget ul a {
    color: var(--text-color);
}
.sidebar-widget p {
    font-style: italic;
    color: #999;
}

/* Responsive */
@media (max-width: 992px) {
    .article-page-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-nav ul {
        gap: 15px;
    }
    .site-title {
        font-size: 2rem;
    }
    .page-header h1, .article-header h1 {
        font-size: 2.2rem;
    }
}