/* Default (Dark) Mode */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #c5c5c5;
    background: #1a1a1a;
    padding: 2rem;
    transition: background-color 0.3s, color 0.3s;
}

main {
    max-width: 650px;
    margin: 0 auto;
    border: 1px solid #333;
    padding: 2rem;
    transition: border-color 0.3s;
}

h1, h2, h3 {
    color: #3d9970; /* Green accent for headers */
    transition: color 0.3s;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 2rem;
    font-weight: 600;
}



h3 {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

nav {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #333;
    transition: border-color 0.3s;
}

nav.social-icons a {
    display: inline-block;
    margin: 0 1rem;
    text-decoration: none; /* Remove underline from icons */
}

nav.social-icons svg {
    width: 24px;
    height: 24px;
    fill: #c5c5c5; /* Default dark mode color */
    transition: fill 0.3s;
}

nav.social-icons a:hover svg {
    fill: #3d9970; /* Dark mode hover color */
}

/* Light mode overrides */
body.light-mode nav.social-icons svg {
    fill: #555; /* Default light mode color */
}

body.light-mode nav.social-icons a:hover svg {
    fill: #0066cc; /* Light mode hover color */
}

nav a:hover, article h3 a:hover {
    text-decoration: underline;
}

article {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #333;
    transition: border-color 0.3s;
}

article:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

article h3 a {
    color: #3d9970; /* Green accent for article titles */
    text-decoration: none;
    transition: color 0.3s;
}

time {
    font-size: 0.9rem;
    color: #888; /* Lighter grey for time */
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

article p {
    color: #c5c5c5; /* Main text color */
    transition: color 0.3s;
}

/* Light Mode */
body.light-mode {
    color: #333;
    background: #fff;
}



body.light-mode h1, 
    body.light-mode h3,
body.light-mode article h3 a {
    color: #0066cc; /* Blue for links/headers in light mode */
}

body.light-mode h2,
body.light-mode nav,
body.light-mode article {
    border-color: #eee;
}

body.light-mode time {
    color: #666;
}

body.light-mode article p {
    color: #555;
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    color: #888; /* Fallback for text */
    padding: 0.5rem; /* Adjusted padding for icon */
    font-family: inherit;
    cursor: pointer;
    position: absolute;
    top: 1rem;
    right: 1rem;
    transition: color 0.3s, border-color 0.3s;
    line-height: 0; /* To collapse button height to icon size */
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
    fill: #888;
    transition: fill 0.3s;
}

.theme-toggle .moon {
    display: none;
}

body.light-mode .theme-toggle .sun {
    display: none;
}

body.light-mode .theme-toggle .moon {
    display: block;
}



body.light-mode .theme-toggle svg {
    fill: #666;
}

/* Style for non-icon nav links, like the 'Back' button */
nav a {
    color: #3d9970;
    text-decoration: none;
    transition: color 0.3s;
}

body.light-mode nav a {
    color: #0066cc;
}

body.light-mode main {
    border-color: #ddd;
}

article p strong {
    color: #3d9970;
}

body.light-mode article p strong {
    color: #0066cc;
}

/* Tab Navigation */
.tab-buttons {
    text-align: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid #333;
    padding-bottom: 1.5rem;
}
.tab-btn {
    background: none;
    border: none;
    color: #888;
    padding: 0.5rem 1.5rem;
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 2px solid transparent;
}
.tab-btn.active {
    color: #c5c5c5;
    border-bottom-color: #c5c5c5;
}
.hidden {
    display: none;
}

/* Light mode overrides for tabs */
body.light-mode .tab-buttons {
    border-bottom-color: #eee;
}
body.light-mode .tab-btn {
    color: #666;
}
body.light-mode .tab-btn.active {
    color: #333;
    border-bottom-color: #333;
}