:root {
    --bg: #f7f7f7;
    --text: #111;
    --accent: #0A84FF;
    --glass-bg: rgba(255,255,255,0.25);
    --glass-blur: blur(10px);
    --shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.dark-mode {
    --bg: #0f0f0f;
    --text: #f1f1f1;
    --glass-bg: rgba(20,20,20,0.25);
    --shadow: 0 8px 20px rgba(0,0,0,0.4);
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    scroll-behavior: smooth;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1s ease forwards;
}

@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}