main { padding: 24px; max-width: 1100px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }

.plan-toggle-btn {
  margin-left: 8px; font-size: 0.78rem; font-weight: 600;
  padding: 5px 13px; border-radius: 8px;
  border: 1px solid var(--glass-border); background: var(--glass-bg); color: var(--muted);
  cursor: pointer; transition: all 0.15s; letter-spacing: 0.03em;
}
.plan-toggle-btn:hover { background: var(--glass-hover); color: var(--text); }
.plan-toggle-btn.active { border-color: var(--plan); color: var(--plan); background: var(--plan-tint); }

.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 20px 22px;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px; flex-wrap: wrap; gap: 12px;
}
.card-head h2 { font-size: 0.95rem; font-weight: 600; }
.card-head p { font-size: 0.78rem; color: var(--muted); margin-top: 3px; }

.toggle { display: inline-flex; background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 9px; padding: 2px; }
.toggle button { font-size: 0.78rem; color: var(--muted); background: transparent; border: none; padding: 5px 14px; border-radius: 7px; cursor: pointer; }
.toggle button.active { color: var(--white); background: var(--accent); }

.chart-box { position: relative; height: 340px; }
.empty-note { color: var(--muted); font-size: 0.85rem; text-align: center; padding: 40px; }

#pb-section { display: flex; flex-direction: column; gap: 24px; }

.date-filter-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 12px 18px; }
.df-label { font-size: 0.8rem; color: var(--muted); white-space: nowrap; }
.df-select {
  background: var(--bg-input); border: 1px solid var(--glass-border);
  color: var(--text); border-radius: 7px; padding: 5px 10px;
  font-size: 0.82rem; cursor: pointer; appearance: none; color-scheme: dark;
}
.df-select:focus { outline: none; border-color: var(--accent); }
.df-quick { margin-left: auto; display: flex; gap: 4px; }
.df-quick-btn {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  color: var(--muted); border-radius: 7px; padding: 5px 11px; font-size: 0.78rem; cursor: pointer;
}
.df-quick-btn:hover { background: var(--glass-border); color: var(--text); }

.pr-current { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
.pr-time { font-size: 1.4rem; font-weight: 800; line-height: 1; }
.pr-sub { font-size: 0.78rem; color: var(--muted); }
.pr-sub strong { color: var(--text); font-weight: 600; }
.pr-session { font-size: 0.78rem; color: var(--muted); margin-top: 2px; }
.pr-session strong { color: var(--text); font-weight: 600; }

@media (max-width: 640px) {
  main { padding: 10px; gap: 14px; }
  .card { padding: 14px; }
  .card-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .chart-box { height: 240px; }
  .date-filter-bar { padding: 10px 12px; gap: 6px; }
  .df-quick { margin-left: 0; width: 100%; justify-content: space-between; display: flex; }
  .df-quick-btn { flex: 1; text-align: center; }
  .pr-time { font-size: 1.1rem; }
}