BTC is trapped in a tightening 1H/4H range with declining volume, suggesting a pending volatility expansion. Given the daily lower-high structure and repeated rejection at 76.4k, downside retest of 75.2k support is favored before any broad reversal. Volume contraction typically precedes a directional move; I expect a dip to support to trigger short-covering or buy absorption. Trade invalid if 4H closes above 77.0k on rising volume.