*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0a0a0f;
    --sidebar: #0d0d16;
    --surface: #11111a;
    --border: #1e1e2e;
    --text-primary: #e8e8f0;
    --text-body: #d0d0e0;
    --text-muted: #6b6b8a;
    --text-ghost: #4a4a6a;

    --foundation: #7c6aff;
    --cosmos: #4fc3f7;
    --mind: #a78bfa;
    --society: #f59e0b;
    --expression: #ff6b9d;
    --engineering: #34d399;
    --philosophy: #f0f0e8;

    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-serif: 'Playfair Display', serif;
    --font-bangla: 'Hind Siliguri', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    overflow-x: hidden;
    height: 400vh;
}

#galaxy-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

#scroll-indicator {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    z-index: 10;
    opacity: 1;
    transition: opacity 0.6s ease;
}

.scroll-line {
    width: 2px;
    height: 28px;
    background-color: var(--text-muted);
    opacity: 0.5;
    border-radius: 1px;
}

.scroll-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--text-muted);
    opacity: 0.5;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 0.5; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(4px); }
}