/* Theme variables */
:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --header-bg: #333333;
    --header-text: #ffffff;
    --footer-bg: #f2f2f2;
    --footer-text: #333333;
    --card-border: #cccccc;
    --btn-bg: #333333;
    --btn-text: #ffffff;
}

body.dark-mode {
    --bg-color: #1a1a1a;
    --text-color: #f2f2f2;
    --header-bg: #000000;
    --header-text: #ffffff;
    --footer-bg: #000000;
    --footer-text: #ffffff;
    --card-border: #444444;
    --btn-bg: #ffffff;
    --btn-text: #333333;
}

/* General styles */
body {
    font-family: sans-serif;
    margin: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

/* Header */
header {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: 1rem;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    color: var(--header-text);
    text-decoration: none;
    font-size: 1.5rem;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
}

li a {
    color: var(--header-text);
    text-decoration: none;
    padding: 1rem;
}

/* Theme Toggle Button */
#theme-toggle {
    background: none;
    border: 1px solid var(--header-text);
    color: var(--header-text);
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 5px;
    margin-left: 1rem;
}

#theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Hero section */
.hero {
    background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1552519507-da3b142c6e3d?q=80&w=2070&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D');
    background-size: cover;
    background-position: center;
    color: #fff;
    text-align: center;
    padding: 4rem 0;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.btn {
    background-color: #fff;
    color: #333;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 5px;
}

/* Featured cars section */
.featured-cars {
    padding: 2rem 1rem;
}

.car-listings {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

/* Call to action section */
.cta {
    background-color: var(--header-bg);
    color: var(--header-text);
    text-align: center;
    padding: 2rem 0;
}

/* Footer */
footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 1rem;
    text-align: center;
}