/* --- EPIC TECH AI: STABLE VISUAL ENGINE --- */
:root {
    --cyan: #00f2ff;
    --black: #000000;
}

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

body {
    background-color: var(--black);
    color: #fff;
    overflow: hidden;
    cursor: crosshair;
}

/* --- THE PORTAL (LANDING) --- */
#portal {
    z-index: 1000;
}

#drop-zone {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
}

#drop-zone:hover {
    border-color: var(--cyan);
    box-shadow: 0 0 20px rgba(0, 242, 255, 0.1);
}

/* --- THE HUD & JOURNEY --- */
#app {
    z-index: 10;
}

.backdrop-blur-xl {
    backdrop-filter: blur(20px);
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 242, 255, 0.1);
}

/* The Vignette: Blends the tunnel edges into the dark */
body::after {
    content: "";
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: radial-gradient(circle, transparent 20%, rgba(0,0,0,1) 95%);
    z-index: 5;
    pointer-events: none;
}

#tunnel-canvas {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
}

/* Interaction Controls */
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

button:hover {
    text-shadow: 0 0 8px var(--cyan);
    transform: scale(1.05);
    transition: all 0.2s ease;
}