:root {
  --status-completed-bg: color-mix(in srgb, var(--green) 18%, transparent);
  --status-completed-text: color-mix(in srgb, var(--green) 74%, white 8%);
  --status-inprogress-bg: color-mix(in srgb, var(--blue) 18%, transparent);
  --status-inprogress-text: color-mix(in srgb, var(--blue) 76%, white 6%);
  --status-pending-bg: color-mix(in srgb, var(--yellow) 18%, transparent);
  --status-pending-text: color-mix(in srgb, var(--yellow) 86%, white 4%);
  --status-overdue-bg: color-mix(in srgb, var(--rose) 18%, transparent);
  --status-overdue-text: color-mix(in srgb, var(--rose) 78%, white 6%);
}

.page-shell { gap: 22px; }
.page-header p,
.topic-description,
.plan-item-note,
.topic-study-assist-copy,
.study-plan-empty-state p,
.selected-day-note {
  line-height: 1.65;
}

.status-completed,
.plan-status-badge.status-completed { background: var(--status-completed-bg); color: var(--status-completed-text); }
.status-in_progress,
.plan-status-badge.status-in_progress { background: var(--status-inprogress-bg); color: var(--status-inprogress-text); }
.status-pending,
.plan-status-badge.status-pending { background: var(--status-pending-bg); color: var(--status-pending-text); }
.status-overdue,
.plan-status-badge.status-overdue { background: var(--status-overdue-bg); color: var(--status-overdue-text); }

.status-label-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
}
.status-label-card {
  padding: 14px;
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel-strong) 92%, black 3%);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}
.status-label-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
}
.status-label-card span {
  font-size: 13px;
  color: var(--muted);
}

.calendar-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.calendar-overview-card {
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-soft) 92%, transparent), color-mix(in srgb, var(--panel-strong) 96%, black 1%));
  box-shadow: var(--shadow-soft);
}
.calendar-overview-card .eyebrow {
  margin-bottom: 8px;
}
.calendar-overview-card strong {
  display: block;
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  margin-bottom: 4px;
}
.calendar-overview-card p {
  margin: 0;
  color: var(--muted);
}

.calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.calendar-legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-soft) 92%, black 2%);
  color: var(--text);
  font-size: 13px;
}
.calendar-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
}
.calendar-legend-dot.completed { background: var(--status-completed-text); }
.calendar-legend-dot.in_progress { background: var(--status-inprogress-text); }
.calendar-legend-dot.pending { background: var(--status-pending-text); }
.calendar-legend-dot.overdue { background: var(--status-overdue-text); }

.calendar-cell { gap: 8px; }
.calendar-cell.has-history {
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--line-strong) 70%, transparent);
}
.calendar-history-row,
.calendar-status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.calendar-status-chip,
.history-chip,
.segment-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  line-height: 1;
  border: 1px solid color-mix(in srgb, var(--line) 90%, transparent);
}
.calendar-status-chip.status-completed { background: var(--status-completed-bg); color: var(--status-completed-text); }
.calendar-status-chip.status-in_progress { background: var(--status-inprogress-bg); color: var(--status-inprogress-text); }
.calendar-status-chip.status-pending { background: var(--status-pending-bg); color: var(--status-pending-text); }
.calendar-status-chip.status-overdue { background: var(--status-overdue-bg); color: var(--status-overdue-text); }
.history-chip { background: color-mix(in srgb, var(--panel-soft) 94%, transparent); color: var(--text); }
.segment-chip {
  background: color-mix(in srgb, var(--violet) 18%, transparent);
  color: color-mix(in srgb, var(--violet) 78%, white 6%);
}

.calendar-day-detail-grid {
  display: grid;
  gap: 16px;
}
.calendar-detail-card {
  padding: 16px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-soft) 94%, black 2%);
}
.calendar-detail-card h3 {
  margin-bottom: 12px;
}
.selected-day-plan-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.selected-day-plan-summary span {
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel-soft) 94%, transparent);
  border: 1px solid var(--line);
  font-size: 13px;
}
.recent-session-item.plan-assignment-item { align-items: flex-start; }
.recent-session-item.plan-assignment-item > div { display: grid; gap: 8px; }

.plan-day-group-head {
  gap: 14px;
  align-items: flex-start;
}
.plan-day-group-head span {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-soft) 93%, transparent);
  font-size: 13px;
}
.plan-segment-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.plan-history-note {
  margin-top: 10px;
  padding: 12px 14px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel-soft) 94%, transparent);
  border: 1px solid var(--line);
  color: var(--muted);
}

.topic-meta-grid > span,
.topic-daily-focus-item,
.topic-plan-strip-card {
  position: relative;
  overflow: hidden;
}
.topic-plan-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.topic-plan-strip-card {
  padding: 16px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-soft) 94%, transparent), color-mix(in srgb, var(--panel-strong) 97%, black 1%));
}
.topic-plan-strip-card strong {
  display: block;
  font-size: clamp(1.1rem, 1.7vw, 1.5rem);
  margin: 4px 0;
}
.topic-plan-strip-card p { margin: 0; color: var(--muted); }
.topic-plan-strip-card .eyebrow { margin-bottom: 4px; }

.audio-premium-item.is-current {
  border-color: color-mix(in srgb, var(--blue) 45%, var(--line));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--blue) 35%, transparent), var(--shadow-soft);
}
.audio-premium-item.is-done {
  border-color: color-mix(in srgb, var(--green) 35%, var(--line));
}
.audio-player-shell { gap: 12px; display: grid; }
.audio-inline-progress {
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: color-mix(in srgb, var(--panel-soft) 92%, black 2%);
  border: 1px solid var(--line);
}
.audio-inline-progress > span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, color-mix(in srgb, var(--blue) 82%, white 3%), color-mix(in srgb, var(--green) 82%, white 3%));
  transition: width .18s ease;
}
.audio-inline-meta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}
.audio-inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.audio-inline-actions .btn { min-width: 108px; }

.topic-reading-dock {
  position: sticky;
  bottom: 16px;
  z-index: 12;
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 16px;
  border-radius: 22px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(135deg, color-mix(in srgb, var(--panel-strong) 96%, black 2%), color-mix(in srgb, var(--panel-soft) 92%, transparent));
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}
.topic-reading-dock[hidden] { display: none; }
.topic-reading-dock-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}
.topic-reading-dock-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.topic-reading-dock-metrics span {
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel-soft) 95%, transparent);
  border: 1px solid var(--line);
  font-size: 13px;
}
.topic-reading-dock-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topic-study-assist-card .modal-header,
.reading-complete-card .modal-header {
  align-items: flex-start;
}
.topic-study-assist-copy {
  margin: 14px 0 18px;
}
.topic-study-assist-transport {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.topic-study-assist-transport .btn { min-width: 112px; }
.topic-study-assist-progress {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}
.topic-study-assist-progressbar {
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-soft) 94%, black 2%);
}
.topic-study-assist-progressbar > span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, color-mix(in srgb, var(--blue) 82%, white 3%), color-mix(in srgb, var(--violet) 82%, white 3%));
  transition: width .2s ease;
}
.topic-study-assist-progresstext {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.modal-audio-toolbar {
  border-radius: 20px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-soft) 94%, black 2%);
}
.modal-audio-toolbar-actions { flex-wrap: wrap; }
.reading-status.compact-reading-status {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-soft) 95%, transparent);
}

.app-content .alert { box-shadow: var(--shadow-soft); }
.card,
.premium-card,
.plan-item,
.topic-daily-focus-card,
.study-plan-today-summary,
.calendar-overview-card,
.topic-plan-strip-card {
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.card:hover,
.premium-card:hover,
.plan-item:hover,
.topic-daily-focus-card:hover,
.study-plan-today-summary:hover,
.topic-plan-strip-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-soft);
}

@media (max-width: 1180px) {
  .calendar-overview-grid,
  .topic-plan-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .calendar-overview-grid,
  .topic-plan-strip { grid-template-columns: 1fr; }
  .topic-reading-dock {
    position: static;
    margin-top: 12px;
  }
}

@media (max-width: 720px) {
  .calendar-legend,
  .selected-day-plan-summary,
  .topic-reading-dock-metrics,
  .topic-reading-dock-actions,
  .audio-inline-actions,
  .plan-segment-row,
  .calendar-history-row,
  .calendar-status-row {
    gap: 6px;
  }

  .calendar-overview-card,
  .topic-plan-strip-card,
  .calendar-detail-card,
  .topic-reading-dock { padding: 14px; }

  .calendar-cell { padding: 10px; }
  .calendar-day-number { margin-bottom: 2px; }
  .calendar-status-chip,
  .history-chip,
  .segment-chip,
  .calendar-legend-chip,
  .selected-day-plan-summary span,
  .topic-reading-dock-metrics span { font-size: 11px; }
}