/* Tactical Vector: Build 04 — Hard Prune Engine & Verified Graph Loop */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background: #050505;
    color: #e0e0e0;
    font-family: 'Courier New', Courier, monospace;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
}

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

/* HUD — minimal, no chrome on empty state */
#hud {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    padding: 8px 12px;
    font-size: 11px;
    letter-spacing: 0.5px;
    pointer-events: none;
    opacity: 0;
    transition: none; /* no fades — instant */
}

#hud.active {
    opacity: 1;
}

#hud-top, #hud-bottom {
    display: flex;
    gap: 24px;
    white-space: nowrap;
}

.hud-label {
    color: #3a3a3a;
}

.hud-value {
    color: #1aff7e;
    text-shadow: 0 0 6px rgba(26, 255, 126, 0.4);
}

.hud-value.dim {
    color: #3a3a3a;
    text-shadow: none;
}

#hud-bottom {
    position: fixed;
    bottom: 8px;
    left: 0;
}

/* Boot overlay — instant flash then gone */
#boot-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: #050505;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

#boot-overlay.gone {
    display: none;
}

#boot-text {
    color: #1aff7e;
    font-size: 14px;
    letter-spacing: 2px;
    animation: blink-cursor 0.3s steps(1) infinite;
}

@keyframes blink-cursor {
    50% { opacity: 0; }
}

/* Null leakage warning — only appears on actual null draw call attempt */
#null-leakage-warning {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(255, 30, 60, 0.08);
}

#null-leakage-warning.active {
    display: flex;
}

/* Verification flash */
.verify-flash {
    position: fixed;
    z-index: 99;
    pointer-events: none;
    border: none;
}