/* Default Light Theme */
:root {
    --bg-color: white;
    --text-color: black;
    --card-bg: #f4f4f4;
}

/* Dark Theme */
.dark-mode {
    --bg-color: #121212;
    --text-color: white;
    --card-bg: #1e1e1e;
}

/* Global Styles */
body {
    background: var(--bg-color);
    color: var(--text-color);
    font-family: Arial, sans-serif;
    transition: 0.3s;
}

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    background: black;
    color: white;
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin: 0 15px;
}

.nav-links a {
    color: white;
    text-decoration: none;
}

#theme-toggle {
    background: transparent;
    color: white;
    border: none;
    font-size: 18px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: url('images/hero.jpg') center/cover no-repeat;
}

.hero h1 {
    font-size: 40px;
}

.btn {
    background: orange;
    padding: 10px 20px;
    color: white;
    border-radius: 5px;
    text-decoration: none;
}

/* Sections */
section {
    padding: 50px;
    text-align: center;
}

/* Projects */
.project-card {
    background: var(--card-bg);
    padding: 20px;
    margin: 10px auto;
    width: 80%;
    border-radius: 10px;
    transition: 0.3s;
}

.project-card:hover {
    transform: scale(1.05);
}