.activity-section { border-bottom: 1px solid var(--line); padding-bottom: 24px; margin-bottom: 28px; min-width: 0; }
.activity-section h2 { font-size: 20px; margin: 0; }
.activity-controls { display: flex; flex-wrap: wrap; align-items: end; gap: 12px; margin-block: 14px; }
.activity-controls label { display: grid; gap: 5px; min-width: 120px; max-width: 100%; }
.activity-controls select { min-width: 0; max-width: 260px; width: 100%; }
.activity-legend { display: flex; flex-wrap: wrap; gap: 10px 24px; font-size: 12px; color: var(--muted); }
.activity-legend span::before { content: ''; display: inline-block; width: 12px; height: 10px; margin-right: 7px; background: var(--green); }
.activity-legend .functions::before { background: var(--link); }
.activity-legend .failures::before { background: var(--red); }
.activity-legend .unknown::before { background: repeating-linear-gradient(45deg, var(--green) 0 2px, transparent 2px 4px); }
.activity-axis { display: flex; justify-content: space-between; gap: 8px; margin-left: 240px; font: 11px Consolas, monospace; color: var(--muted); }
.activity-row { display: grid; grid-template-columns: 224px minmax(0,1fr); gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.activity-label { min-width: 0; overflow-wrap: anywhere; font-size: 12px; }
.activity-label strong,.activity-label small { display: block; }
.activity-label small { color: var(--muted); }
.activity-track { position: relative; min-height: 44px; background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 25%); }
.activity-track .activity-mark { position: absolute; bottom: 6px; padding: 0; min-height: 0; min-width: 2px; border: 0; border-radius: 1px; background: var(--green); }
.activity-track .function { background: var(--link); }
.activity-track .failed { background: var(--red); }
.activity-track .unknown { background: repeating-linear-gradient(45deg, var(--green) 0 3px, transparent 3px 6px); border: 1px solid var(--green); }
.activity-track .activity-mark:hover,.activity-track .activity-mark[aria-pressed="true"] { outline: 2px solid var(--text); outline-offset: 2px; background-color: var(--green); z-index: 1; }
.activity-track .function:hover,.activity-track .function[aria-pressed="true"] { background-color: var(--link); }
.activity-track .failed:hover,.activity-track .failed[aria-pressed="true"] { background-color: var(--red); }
.activity-selection h3 { font-size: 15px; margin-top: 20px; }
.activity-events { max-height: 360px; overflow: auto; }
.activity-events dl { display: grid; grid-template-columns: 140px minmax(0,1fr); gap: 4px 12px; padding-block: 12px; border-bottom: 1px solid var(--line); font-size: 12px; }
.activity-events dd { margin: 0; overflow-wrap: anywhere; font-family: Consolas, monospace; }
#activityStatus,#activityCoverage { font-size: 12px; overflow-wrap: anywhere; color: var(--muted); }
@media(max-width:700px) {
 .activity-row { grid-template-columns: minmax(0,1fr); gap: 4px; }
 .activity-axis { margin-left: 0; font-size: 10px; }
 .activity-axis span:nth-child(2) { display: none; }
 .activity-controls label { flex: 1; }
 .activity-controls select { max-width: 100%; }
 .activity-events dl { grid-template-columns: 105px minmax(0,1fr); }
}