@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
    --primary-color: #6a11cb;
    --secondary-color: #2575fc;
    --background-color: #f0f2f5;
    --card-background: #ffffff;
    --text-color: #333;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --glow-color: rgba(106, 17, 203, 0.4);
}

.dark-mode {
    --background-color: #1a1a1a;
    --card-background: #2a2a2a;
    --text-color: #f0f2f5;
    --shadow-color: rgba(255, 255, 255, 0.1);
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: background-color 0.3s ease, color 0.3s ease;
}

header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    width: 100%;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

header p {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin: 0;
}

.theme-switcher {
    position: absolute;
    top: 10px;
    right: 20px;
    padding: 8px 12px;
    border-radius: 20px;
    border: none;
    background-color: var(--card-background);
    color: var(--text-color);
    box-shadow: 0 4px 15px var(--shadow-color);
    cursor: pointer;
    font-size: 0.9rem;
}

main {
    width: 100%;
    max-width: 600px;
}