/* ── 使用记录面板 ── */
.usage-panel {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  will-change: transform;
}

/* 电脑端：靠左，固定宽度（对齐 mood-panel 面板壳） */
@media (min-width: 768px) {
  .usage-panel {
    right: auto;
    width: 420px;
    border-right: 1px solid var(--border);
    box-shadow: var(--shadow-lg, 0 8px 28px rgba(31,30,29,0.10));
  }
}

.usage-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-primary);
  z-index: 1;
}

.usage-back {
  width: 36px;
  height: 36px;
  border: none;
  background: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.usage-back:hover { background: var(--bg-sunken); }

.usage-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.usage-body {
  padding: 16px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 480px;
  min-height: 400px;
}

.usage-loading { color: var(--text-secondary); }
.usage-empty { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }

/* ── 日期 chips ── */
.usage-daybar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.usage-day-chip {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--card-radius, 12px);
  background: var(--card-bg);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
}

.usage-day-chip small {
  font-size: 11px;
  color: var(--text-secondary);
}

.usage-day-chip.active {
  border-color: var(--accent, #C96442);
  background: var(--accent-soft, #C9644214);
  color: var(--accent, #C96442);
}

.usage-day-chip.active small { color: var(--accent, #C96442); }

/* ── app 行 ── */
.usage-total {
  font-size: 13px;
  color: var(--text-secondary);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.usage-row {
  display: grid;
  grid-template-columns: minmax(96px, 34%) 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
}

.usage-label {
  font-size: 14px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.usage-bar {
  height: 8px;
  border-radius: 4px;
  background: var(--bg-sunken);
  overflow: hidden;
}

.usage-bar i {
  display: block;
  height: 100%;
  border-radius: 4px;
  background: var(--accent, #C96442);
}

.usage-val {
  font-size: 13px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.usage-row.is-system .usage-label,
.usage-row.is-system .usage-val { color: var(--text-tertiary, #A8A29E); }
.usage-row.is-system .usage-bar i { background: var(--text-tertiary, #A8A29E); }