/* ================================================================
   CONSTELLATION WEBGL — Styles for WebGL renderer + overlay
   SPEC_CONSTELLATION_HUD_9_75 §Q7.2
   ================================================================ */

/* ---- Container ---- */
.constellation-webgl-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: transparent;
}

.constellation-webgl-container canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* ---- Tooltip ---- */
.constellation-tooltip {
    position: absolute;
    pointer-events: none;
    z-index: 100;
    padding: 6px 10px;
    background: var(--bottom-bg-solid, rgba(10, 14, 20, 0.9));
    border: 1px solid var(--bottom-border, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-sm, 4px);
    color: var(--bottom-text, rgba(255, 255, 255, 0.85));
    font-size: 11px;
    font-family: Inter, system-ui, sans-serif;
    white-space: nowrap;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: opacity 0.1s ease;
}

/* ---- Loading spinner ---- */
.constellation-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    border: 2px solid var(--bottom-border, rgba(255, 255, 255, 0.1));
    border-top-color: var(--bottom-accent, #4fc3f7);
    border-radius: 50%;
    animation: constellation-spin 0.8s linear infinite;
    z-index: 50;
    pointer-events: none;
}

@keyframes constellation-spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* ---- Overlay ---- */
.constellation-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
}

.constellation-overlay canvas {
    pointer-events: auto;
}

/* ---- Node labels (HTML overlay inside WebGL container) ---- */
.constellation-node-label {
    position: absolute;
    transform: translate(-50%, 0);
    pointer-events: none;
    text-align: center;
    line-height: 1.2;
    user-select: none;
}

/* ---- Dark mode support ---- */
@media (prefers-color-scheme: dark) {
    .constellation-tooltip {
        background: rgba(10, 14, 20, 0.92);
        color: rgba(255, 255, 255, 0.85);
        border-color: rgba(255, 255, 255, 0.12);
    }
}

/* Failsafe quando CSS variables não estão definidas */
.constellation-tooltip {
    background: var(--bottom-bg-solid, rgba(10, 14, 20, 0.9));
    color: var(--bottom-text, rgba(255, 255, 255, 0.85));
    border-color: var(--bottom-border, rgba(255, 255, 255, 0.1));
}