* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: #1a1a1a;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    text-align: center;
}

h1 {
    color: white;
    font-size: 3rem;
    font-weight: 600;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5),
                 0 0 20px rgba(255, 255, 255, 0.3),
                 0 0 30px rgba(255, 255, 255, 0.2);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.5),
                     0 0 20px rgba(255, 255, 255, 0.3),
                     0 0 30px rgba(255, 255, 255, 0.2);
    }
    to {
        text-shadow: 0 0 20px rgba(255, 255, 255, 0.8),
                     0 0 30px rgba(255, 255, 255, 0.6),
                     0 0 40px rgba(255, 255, 255, 0.4);
    }
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #1d1d1d;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #2a2c2e;
    z-index: 1000;
    transition: background-color 0.3s, border-color 0.3s;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
}

.nav-logo {
    height: 32px;
    width: auto;
}

.nav-brand span {
    font-weight: 600;
    font-size: 1.2rem;
    transition: text-shadow 0.3s;
    color: white;
}

.nav-brand:hover span {
    text-shadow: 0 0 5px rgba(255,255,255,0.5);
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

.theme-toggle:hover {
    background-color: #2a2c2e;
}

.theme-toggle img {
    opacity: 0.7;
    transition: opacity 0.3s;
    width: 24px;
    height: 24px;
}

.theme-toggle:hover img {
    opacity: 1;
}

.sun-icon, .moon-icon {
    width: 24px;
    height: 24px;
    transition: opacity 0.3s;
}

[data-theme="light"] .sun-icon {
    display: none;
}

[data-theme="light"] .moon-icon {
    display: block;
}

[data-theme="dark"] .sun-icon {
    display: block;
}

[data-theme="dark"] .moon-icon {
    display: none;
}