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

/* --- CSS Variables (Theme: Tech / Futuristic) --- */
:root {
    --primary-color: #00f6ff;
    --secondary-color: #ff00c1;
    --bg-color: #0d1117;
    --card-bg-color: #161b22;
    --border-color: #30363d;
    --text-color: #c9d1d9;
    --text-muted-color: #8b949e;
    --font-family: 'JetBrains Mono', monospace;
}

/* --- Global Resets & Base Styles --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    line-height: 1.3;
    text-shadow: 0 0 5px var(--primary-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
}

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

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

ul {
    list-style-position: inside;
    margin-bottom: 1rem;
}

/* --- Layout --- */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 0;
}

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

/* --- Header & Navigation --- */
.site-header {
    background-color: var(--card-bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.site-title {
    font-size: 1.8rem;
    color: var(--primary-color);
    text-shadow: 0 0 5px var(--primary-color);
    margin: 0;
}

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

.main-nav a {
    color: var(--text-color);
    font-weight: bold;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

.main-nav a.active,
.main-nav a:hover {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}


/* --- Main Content & Sections --- */
.intro-section {
    text-align: center;
    padding: 2rem 1rem;
    border: 1px solid var(--border-color);
    background: linear-gradient(145deg, var(--card-bg-color), var(--bg-color));
    margin-bottom: 2rem;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.article-card {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 15px var(--primary-color);
}

.article-card h2 {
    font-size: 1.3rem;
    margin-top: 0;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* --- Sidebar --- */
.sidebar-widget {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.sidebar-widget h3 {
    margin-top: 0;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

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

.sidebar-widget li {
    margin-bottom: 0.5rem;
}

.sidebar-widget a {
    color: var(--text-color);
}

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

/* --- Article Page Specific --- */
.article-header {
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.article-meta {
    color: var(--text-muted-color);
    font-size: 0.9rem;
}

.article-content h2, .article-content h3 {
    margin-top: 2rem;
}

.article-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-muted-color);
}

.cta-section {
    background-color: var(--card-bg-color);
    border: 1px solid var(--secondary-color);
    padding: 2rem;
    text-align: center;
    margin-top: 2rem;
}

/* --- Contact Form --- */
.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-family: var(--font-family);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 8px var(--primary-color);
}

/* --- Media Queries for Responsiveness --- */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
}

@media (min-width: 992px) {
    .main-layout {
        grid-template-columns: 3fr 1fr;
    }
}