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

:root {
    --color-text: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-link: #0066cc;
    --color-link-hover: #004499;
    --color-border: #e0e0e0;
    --color-bg: #ffffff;
    --color-bg-secondary: #f8f8f8;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;
    --max-width: 800px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

h2 {
    font-size: 2rem;
    font-weight: 600;
    line-height: 1.3;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.4;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

p strong {
    font-weight: 600;
}

/* Links */
a {
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--color-link);
    outline-offset: 2px;
}

/* Layout Navigation - Shown on all pages except homepage */
body > nav.nav-buttons {
    display: flex;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
}

/* Hide layout navbar on homepage (homepage has its own navbar inside main) */
body:has(.home-page) > nav.nav-buttons {
    display: none;
}

/* Navigation buttons in main content */
.nav-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.nav-button {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 6px;
    color: var(--color-text);
    font-weight: 400;
    text-decoration: none;
    transition: background-color 0.2s ease;
    white-space: nowrap;
}

.nav-button:hover {
    background-color: var(--color-border);
    text-decoration: none;
}

.nav-button-external::after {
    content: " ↗";
    font-size: 0.875em;
    opacity: 0.7;
}

/* Main content */
main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
    flex: 1;
    width: 100%;
}

.home-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: calc(100vh - 200px);
    justify-content: center;
}

.profile-image {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: var(--spacing-xl);
}

.name-title {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.job-title,
.bio {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

/* Lists */
ol,
ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

/* Div containers */
div {
    margin-bottom: var(--spacing-md);
}

/* Post page styles */
.post-page {
    max-width: 800px;
}

.back-to-blog {
    display: inline-block;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.back-to-blog:hover {
    color: var(--color-text);
    text-decoration: none;
}

.post-cover {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: var(--spacing-xl);
    object-fit: cover;
}

.post-header {
    margin-bottom: var(--spacing-xl);
}

.post-title {
    margin-bottom: var(--spacing-md);
}

.post-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.post-meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.post-meta span {
    display: inline-block;
}

.post-content {
    line-height: 1.8;
}

/* Hashnode image styles */
.post-content img,
.image--center,
.mx-auto {
    max-width: 100%;
    height: auto;
    display: block;
    margin: var(--spacing-xl) auto;
    border-radius: 8px;
}

/* Center images with both classes */
.image--center.mx-auto,
.mx-auto.image--center {
    margin-left: auto;
    margin-right: auto;
}

/* General image styling in post content */
.post-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: var(--spacing-xl) auto;
}

/* Responsive images */
.post-content img[class*="image"] {
    max-width: 100%;
    width: auto;
    height: auto;
}

/* Footer */
.site-footer {
    padding: var(--spacing-lg) var(--spacing-lg);
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
}

.site-footer .copyright {
    margin-bottom: 0;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: 0;
}

.social-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
}

.social-links a:hover {
    color: var(--color-text);
    text-decoration: none;
}

/* Responsive design */
@media (max-width: 768px) {
    :root {
        --max-width: 100%;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    main {
        padding: 0 var(--spacing-md);
    }

    /* Layout navbar on mobile */
    body > nav.nav-buttons {
        padding: var(--spacing-sm) var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    /* Navigation buttons spacing on mobile */
    .nav-buttons {
        gap: var(--spacing-sm);
        margin-top: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }

    .nav-button {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.9rem;
        flex: 1 1 calc(50% - var(--spacing-sm));
        text-align: center;
    }

    .site-footer {
        padding: var(--spacing-lg) var(--spacing-md);
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }

    .social-links {
        flex-wrap: wrap;
    }

    /* Post content images on mobile */
    .post-content img,
    .image--center,
    .mx-auto {
        margin: var(--spacing-lg) auto;
    }

    .post-meta {
        gap: var(--spacing-sm);
        font-size: 0.85rem;
    }
}