/* =================================
   1. Theme Variables (Dark/Light)
   ================================= */

:root {
    /* Light Theme Variables (Default) */
    --background-color: #ffffff;
    --text-color: #333333;
    --link-color: #007bff;
    --header-bg: #f8f8f8;
    --border-color: #e0e0e0;
    --news-bg: #f9f9f9;
    --box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    /* Dark Theme Variables */
    --background-color: #1a1a1a;
    --text-color: #f0f0f0;
    --link-color: #8ab4f8;
    /* Lighter blue for dark mode */
    --header-bg: #2a2a2a;
    --border-color: #3e3e3e;
    --news-bg: #2a2a2a;
    --box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* =================================
   2. Base & Sticky Footer Setup
   ================================= */

/* Ensure HTML and BODY span the full viewport height */
html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Apply border-box globally */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Set up the body for the Sticky Footer (Flexbox) */
body {
    font-family: Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;

    /* Sticky Footer properties */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    /* Minimum height is 100% of viewport */
}

/* =================================
   3. Header and Navigation
   ================================= */

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 50px;
    background-color: var(--header-bg);
}

.nav-links a {
    /* Top bar element font slightly bigger */
    font-size: 1.15em;
    text-decoration: none;
    color: var(--text-color);
    margin-right: 25px;
    padding: 5px 0;
    transition: color 0.3s;
}

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

.nav-underline {
    border: 0;
    height: 1px;
    background-color: var(--border-color);
    margin: 0;
}

/* Theme Toggle Button Styling */
#theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.2em;
    cursor: pointer;
    padding: 5px;
    transition: color 0.3s;
}

#theme-toggle:hover {
    color: var(--link-color);
}


/* =================================
   4. Main Content Layout (Two Columns)
   ================================= */

/* Main content grows to push the footer down */
main {
    flex-grow: 1;
    /* Key for sticky footer */

    /* Two-column layout settings */
    display: flex;
    max-width: 1200px;
    /* Center the main content */
    margin: 40px auto;
    padding: 0 20px;
    gap: 40px;
    align-items: flex-start;
    flex-wrap: wrap;
}

/* Left Column: Profile, Text, Links */
.main-content-left {
    flex: 2;
    min-width: 300px;
}

.profile-section {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 20px;
}

.profile-section img {
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.profile-text h2 {
    margin-top: 0;
    margin-bottom: 5px;
    color: var(--text-color);
}

.links-section a {
    color: var(--link-color);
    text-decoration: none;
    margin: 0 5px;
}

.links-section a:hover {
    text-decoration: underline;
}

/* Right Column: News Box */
.news-section {
    flex: 1;
    min-width: 250px;

    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--news-bg);
    box-shadow: var(--box-shadow);
    align-self: flex-start;
}

.news-section h3 {
    margin-top: 0;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.news-section ul {
    list-style-type: disc;
    padding-left: 20px;
    margin: 0;
}

.news-section li {
    margin-bottom: 10px;
    line-height: 1.4;
}

/* =================================
   5. Footer
   ================================= */

footer {
    text-align: center;
    padding: 15px;
    border-top: 1px solid var(--border-color);
    background-color: var(--header-bg);
    font-size: 0.9em;
    color: var(--text-color);
}

/* =================================
   6. Responsiveness (Mobile stacking fixed)
   ================================= */
@media (max-width: 800px) {
    .home-layout {
        flex-direction: column;
        /* Stack columns vertically */
        padding: 0 15px;
    }

    .main-content-left,
    .news-section {
        flex: none;
        width: 100%;
    }

    .news-section {
        /* The 'order: -1;' rule has been removed here. 
           This ensures the News section now appears AFTER the main profile content 
           on mobile, following the HTML order. */
        margin-bottom: 20px;
    }

    .navbar {
        padding: 15px 20px;
    }
}