#screen-activity {
  align-items: flex-start;
  justify-content: flex-start;
  overflow-y: auto;
}

.activity-container {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 16px 48px;
  display: flex;
  flex-direction: column;
  gap: 0;
  box-sizing: border-box;
}

/* ── Header ───────────────────────────────────────────── */

.activity-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.activity-back {
  font-family: var(--font-mono);
  font-size: 13px;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px 0;
  white-space: nowrap;
}
.activity-back:hover { color: var(--accent); }

.activity-title {
  font-family: var(--font-pixel);
  font-size: clamp(14px, 3vw, 18px);
  color: var(--text);
  margin: 0;
  letter-spacing: 1px;
}

/* ── Timeline ─────────────────────────────────────────── */

.activity-timeline {
  position: relative;
  padding-left: 28px;
  border-left: 2px solid var(--border);
  margin-left: 6px;
  min-height: 60px;
}

.activity-timeline-loading {
  display: flex;
  justify-content: center;
  padding: 40px 0;
}

/* ── Date separators ──────────────────────────────────── */

.activity-date {
  font-family: var(--font-pixel);
  font-size: 9px;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  text-transform: uppercase;
  padding: 20px 0 8px;
  position: relative;
}
.activity-date:first-child {
  padding-top: 4px;
}

/* ── Items ────────────────────────────────────────────── */

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  position: relative;
}

.activity-item-dot {
  position: absolute;
  left: -34px;
  top: 14px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  flex-shrink: 0;
}

.activity-item-session .activity-item-dot {
  background: var(--accent);
}

.activity-item-achievement .activity-item-dot {
  background: #fbbf24;
}

.activity-item-body {
  flex: 1;
  min-width: 0;
}

.activity-item-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.activity-item-game {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.activity-item-system {
  font-family: var(--font-pixel);
  font-size: 8px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  flex-shrink: 0;
}

.activity-item-detail {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 3px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.activity-item-achievement-name {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
}

.activity-item-icon {
  font-size: 16px;
  line-height: 1;
}

.activity-item-points {
  font-family: var(--font-pixel);
  font-size: 9px;
  color: #fbbf24;
  letter-spacing: 0.5px;
}

.activity-item-mode {
  font-family: var(--font-pixel);
  font-size: 8px;
  padding: 2px 6px;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.activity-item-mode-solo {
  color: var(--text-dim);
  background: var(--surface);
}
.activity-item-mode-netplay {
  color: var(--accent);
  background: rgba(0, 229, 160, 0.1);
}

.activity-item-time {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  white-space: nowrap;
  flex-shrink: 0;
  margin-left: auto;
  padding-left: 8px;
}

/* ── Load More ────────────────────────────────────────── */

.activity-load-more {
  display: block;
  margin: 24px auto;
  font-family: var(--font-pixel);
  font-size: 10px;
  padding: 10px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: border-color 0.15s, color 0.15s;
}
.activity-load-more:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.activity-load-more:disabled {
  opacity: 0.5;
  cursor: default;
}

/* ── Responsive ───────────────────────────────────────── */

@media (max-width: 480px) {
  .activity-container { padding: 16px 12px 32px; }
  .activity-item-time { display: block; margin-left: 0; padding-left: 0; margin-top: 4px; }
  .activity-item-header { flex-direction: column; gap: 2px; }
  .activity-item-game { max-width: 70vw; }
}