:root {
    --bg-color: #f4f4f4;
    --text-color: #333;
    --card-bg: #ffffff;
    --accent-color: #007bff;
    --header-bg: #007bff;
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #f4f4f4;
    --card-bg: #2d2d2d;
    --accent-color: #3793ff;
    --header-bg: #111;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.8;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    /* This handles the centering */
    display: flex;
    flex-direction: column;
    align-items: center;
}

#about-header {
    width: 100%;
    background-color: var(--header-bg);
    color: white;
    padding: 60px 20px;
    text-align: center;
    margin-bottom: 40px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

#education-story, #current-endeavors, #personal-interests {
    width: 90%;
    max-width: 750px;
    background-color: var(--card-bg); /* Use variable here! */
    padding: 35px;
    margin-bottom: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, background-color 0.3s;
}

#education-story:hover, #current-endeavors:hover, #personal-interests:hover {
    transform: translateY(-5px);
}

h2 {
    color: var(--accent-color);
    border-bottom: 2px solid rgba(150, 150, 150, 0.1);
    padding-bottom: 10px;
}

p {
    text-align: justify;
    hyphens: auto;
}

/* Language Toggle Logic */
[data-lang="sr"] .lang-en {
    display: none;
}

[data-lang="en"] .lang-sr {
    display: none;
}

/* Style for the language button */
#lang-toggle {
    position: fixed;
    top: 20px;
    right: 80px; /* Positioned next to your theme toggle */
    padding: 10px;
    cursor: pointer;
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--accent-color);
    font-weight: bold;
}