/* Minimal Researcher Design System */
:root {
    --bg-color: #111111;
    --text-primary: #eeeeee;
    --text-secondary: #a0a0a0;
    --accent-color: #58a6ff;
    /* GitHub-like blue */
    --border-color: #30363d;
    --code-bg: #161b22;
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    font-size: 16px;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

h2 {
    font-size: 1.75rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3rem;
}

h3 {
    font-size: 1.4rem;
}

p {
    margin-bottom: 1.2rem;
}

/* Header & Nav */
header {
    margin-bottom: 4rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 1rem;
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* Hero / Intro */
.hero {
    margin-bottom: 4rem;
}

.hero-content {
    display: flex;
    flex-direction: column-reverse;
    gap: 2rem;
}

@media (min-width: 600px) {
    .hero-content {
        flex-direction: row;
        align-items: flex-start;
        justify-content: space-between;
    }

    .hero-text {
        flex: 1;
        padding-right: 2rem;
    }
}

.hero-image img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    /* Circular profile picture */
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.social-links {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
}

/* Sections */
section {
    margin-bottom: 4rem;
}

.section-title {
    margin-bottom: 1.5rem;
}

/* Cards / List Items */
.grid {
    display: grid;
    gap: 2rem;
}

.card {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1.5rem;
    background: transparent;
    transition: border-color 0.2s;
}

.card:hover {
    border-color: var(--accent-color);
}

.card h3 {
    margin-top: 0;
    font-size: 1.2rem;
}

.card-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-link {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

/* Blog Styles */
.post-container {
    max-width: 100%;
    padding: 0;
}

.post-header {
    margin-bottom: 2rem;
    text-align: left;
}

.post-title {
    font-size: 2.2rem;
    border: none;
    margin-bottom: 0.5rem;
}

.post-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.post-content {
    font-size: 1.05rem;
}

.post-content code {
    background-color: var(--code-bg);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.9em;
}

.post-content pre {
    background-color: var(--code-bg);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.post-content img {
    max-width: 100%;
    border-radius: 6px;
}

.blog-grid {
    display: grid;
    gap: 1.5rem;
}

.blog-card {
    padding: 0;
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
    border-radius: 0;
}

.blog-card:hover {
    border-color: var(--border-color);
    /* No hover effect on border for list items */
}

.blog-card:last-child {
    border-bottom: none;
}

.blog-title a {
    color: var(--text-primary);
}

.blog-title a:hover {
    color: var(--accent-color);
}

/* Footer */
footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Utilities */
.gradient-text {
    background: none;
    -webkit-text-fill-color: initial;
    color: var(--text-primary);
}