/* Calendar and task planning module. Intentionally inherits the host app's
   color system and typography so it sits naturally inside the existing UI. */
.calendar-module {
  --calendar-gap: 1px;
  --calendar-radius: 10px;
  --calendar-accent: var(--accent, var(--primary, #587b9a));
  --calendar-surface: var(--card, #f8f8f5);
  --calendar-border: var(--border, #d8ddd9);
  --calendar-soft-border: var(--border-soft, #e7eae7);
  --calendar-ink: var(--text, #293431);
  --calendar-muted: var(--text-muted, #74807b);
  --calendar-canvas: var(--bg, #f0f3ef);
  color: var(--calendar-ink);
  min-width: 0;
}

.calendar-module *,
.calendar-module *::before,
.calendar-module *::after {
  box-sizing: border-box;
}

.calendar-module .calendar-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.25rem;
  margin: 0 0 1.15rem;
}

.calendar-module .calendar-header h1,
.calendar-module .calendar-header h2,
.calendar-module .calendar-header h3 {
  color: var(--heading, var(--calendar-ink));
  margin: 0;
  letter-spacing: -0.035em;
  line-height: 1.12;
}

.calendar-module .calendar-toolbar,
.calendar-module .calendar-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.calendar-module .calendar-toolbar {
  justify-content: space-between;
  margin-bottom: 0.9rem;
}

.calendar-module .calendar-controls {
  justify-content: flex-end;
}

.calendar-module .calendar-toolbar button,
.calendar-module .calendar-controls button,
.calendar-module .calendar-controls select,
.calendar-module .calendar-controls input {
  font: inherit;
}

.calendar-module .calendar-toolbar button:not(.btn),
.calendar-module .calendar-controls button:not(.btn),
.calendar-module .calendar-controls select,
.calendar-module .calendar-controls input {
  min-height: 2.35rem;
  padding: 0.42rem 0.72rem;
  color: var(--calendar-ink);
  background: var(--calendar-surface);
  border: 1px solid var(--calendar-border);
  border-radius: 7px;
}

.calendar-module .calendar-controls select,
.calendar-module .calendar-controls input {
  max-width: 100%;
}

.calendar-module .calendar-summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin: 0 0 0.85rem;
  padding: 0.75rem 0.9rem;
  color: var(--calendar-muted);
  background: color-mix(in srgb, var(--calendar-accent) 7%, var(--calendar-surface));
  border: 1px solid var(--calendar-soft-border);
  border-radius: var(--calendar-radius);
  font-size: 0.9rem;
}

.calendar-module .calendar-summary strong {
  color: var(--calendar-ink);
  font-variant-numeric: tabular-nums;
}

.calendar-module .calendar-legend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin: 0 0 0.65rem;
  color: var(--calendar-muted);
  font-size: 0.78rem;
}

.calendar-module .calendar-legend > * {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.calendar-module .calendar-legend > *::before {
  width: 0.55rem;
  height: 0.55rem;
  flex: 0 0 auto;
  content: "";
  background: var(--calendar-accent);
  border-radius: 50%;
}

.calendar-module .calendar-legend .is-task::before,
.calendar-module .calendar-legend [data-kind="task"]::before {
  background: var(--primary, var(--calendar-accent));
}

.calendar-module .calendar-legend .is-event::before,
.calendar-module .calendar-legend [data-kind="event"]::before {
  background: var(--accent, var(--calendar-accent));
}

.calendar-module .calendar-weekdays,
.calendar-module .calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.calendar-module .calendar-grid-row {
  display: contents;
}

.calendar-module .calendar-day-count {
  display: none;
}

.calendar-module .calendar-weekdays {
  gap: var(--calendar-gap);
  padding: 0.35rem 0.6rem;
  color: var(--calendar-muted);
  background: var(--calendar-canvas);
  border: 1px solid var(--calendar-border);
  border-bottom: 0;
  border-radius: var(--calendar-radius) var(--calendar-radius) 0 0;
}

.calendar-module .calendar-weekdays > * {
  min-width: 0;
  padding: 0.2rem 0.35rem;
  font-size: 0.71rem;
  font-weight: 700;
  letter-spacing: 0.075em;
  text-align: right;
  text-transform: uppercase;
}

.calendar-module .calendar-grid {
  gap: var(--calendar-gap);
  overflow: hidden;
  background: var(--calendar-border);
  border: 1px solid var(--calendar-border);
  border-radius: 0 0 var(--calendar-radius) var(--calendar-radius);
}

.calendar-module .calendar-day {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 108px;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.45rem;
  overflow: hidden;
  background: var(--calendar-surface);
  transition: background-color 140ms ease, box-shadow 140ms ease;
}

.calendar-module .calendar-day-number {
  display: inline-flex;
  width: 1.75rem;
  height: 1.75rem;
  min-width: 2rem;
  min-height: 2rem;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  align-self: flex-end;
  color: var(--calendar-muted);
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  padding: 0;
  border: 0;
  background: transparent;
}

.calendar-module .calendar-day.is-outside {
  background: color-mix(in srgb, var(--calendar-canvas) 72%, var(--calendar-surface));
}

.calendar-module .calendar-day.is-outside .calendar-day-number {
  opacity: 0.56;
}

.calendar-module .calendar-day.is-today {
  background: color-mix(in srgb, var(--calendar-accent) 5%, var(--calendar-surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--calendar-accent) 45%, transparent);
}

.calendar-module .calendar-day.is-today .calendar-day-number {
  color: var(--calendar-surface);
  background: var(--calendar-accent);
}

.calendar-module .calendar-day.is-selected {
  box-shadow: inset 0 0 0 2px var(--calendar-accent);
}

.calendar-module .calendar-event {
  display: block;
  min-width: 0;
  padding: 0.28rem 0.4rem;
  overflow: hidden;
  color: var(--calendar-ink);
  background: color-mix(in srgb, var(--calendar-accent) 13%, var(--calendar-surface));
  border-left: 3px solid var(--calendar-accent);
  border-radius: 4px;
  font-size: 0.73rem;
  font-weight: 550;
  line-height: 1.3;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.calendar-module .calendar-event.is-task,
.calendar-module .calendar-event[data-kind="task"] {
  background: color-mix(in srgb, var(--primary, var(--calendar-accent)) 11%, var(--calendar-surface));
  border-left-color: var(--primary, var(--calendar-accent));
}

.calendar-module .calendar-event.is-done {
  opacity: 0.65;
  text-decoration: line-through;
}

.calendar-module .calendar-event.is-overdue,
.calendar-module .calendar-event[data-status="overdue"] {
  border-left-color: var(--danger, #b34f4a);
}

.calendar-module .calendar-event:focus-visible,
.calendar-module .calendar-day:focus-visible,
.calendar-module .calendar-list-row:focus-visible,
.calendar-module .calendar-tag:focus-visible,
.calendar-module button:focus-visible,
.calendar-module a:focus-visible,
.calendar-module input:focus-visible,
.calendar-module select:focus-visible,
.calendar-module textarea:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--calendar-accent) 72%, transparent);
  outline-offset: 2px;
  z-index: 1;
}

.calendar-module .calendar-list {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
}

.calendar-module .calendar-list-row {
  display: grid;
  grid-template-columns: minmax(5.5rem, 0.28fr) minmax(0, 1fr);
  gap: 0.8rem;
  align-items: start;
  min-width: 0;
  padding: 0.85rem 0.95rem;
  background: var(--calendar-surface);
  border: 1px solid var(--calendar-border);
  border-radius: var(--calendar-radius);
  transition: border-color 140ms ease, transform 140ms ease;
}

.calendar-module .calendar-list-date {
  color: var(--calendar-muted);
  font-size: 0.83rem;
  font-weight: 650;
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
}

.calendar-module .calendar-list-main {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.65rem;
}

.calendar-module .calendar-list-main > * {
  min-width: 0;
}

.calendar-module .calendar-tag {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 0.18rem 0.48rem;
  color: var(--calendar-muted);
  background: var(--calendar-canvas);
  border: 1px solid var(--calendar-soft-border);
  border-radius: 999px;
  font-size: 0.72rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.calendar-module .calendar-tag.is-overdue {
  color: var(--danger, #a23532);
  border-color: var(--danger, #a23532);
}

.calendar-module .calendar-unscheduled {
  display: grid;
  gap: 0.6rem;
  margin-top: 1rem;
  padding: 0.9rem;
  background: color-mix(in srgb, var(--tint, var(--calendar-canvas)) 70%, var(--calendar-surface));
  border: 1px dashed var(--calendar-border);
  border-radius: var(--calendar-radius);
}

.calendar-module .calendar-editor {
  display: grid;
  gap: 0.85rem;
  padding: 1rem;
  background: var(--calendar-surface);
  border: 1px solid var(--calendar-border);
  border-radius: var(--calendar-radius);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--calendar-ink) 8%, transparent);
}

.calendar-module .calendar-editor label {
  display: grid;
  gap: 0.35rem;
  color: var(--calendar-muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.calendar-module .calendar-editor input,
.calendar-module .calendar-editor select,
.calendar-module .calendar-editor textarea {
  width: 100%;
  min-height: 2.5rem;
  padding: 0.58rem 0.7rem;
  color: var(--calendar-ink);
  background: var(--calendar-surface);
  border: 1px solid var(--calendar-border);
  border-radius: 7px;
  font: inherit;
}

.calendar-module .calendar-editor textarea {
  min-height: 5rem;
  resize: vertical;
}

.calendar-module .calendar-editor :disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

.calendar-module .calendar-form-error:not([hidden]) {
  color: var(--danger, #a23532);
  margin: 0.65rem 0 0;
  font-weight: 600;
}

@media (hover: hover) and (pointer: fine) {
  .calendar-module .calendar-day:hover {
    background: color-mix(in srgb, var(--calendar-accent) 6%, var(--calendar-surface));
  }

  .calendar-module .calendar-list-row:hover {
    border-color: color-mix(in srgb, var(--calendar-accent) 45%, var(--calendar-border));
    transform: translateY(-1px);
  }
}

@media (max-width: 760px) {
  .calendar-module .calendar-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.8rem;
  }

  .calendar-module .calendar-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .calendar-module .calendar-controls {
    justify-content: flex-start;
  }

  .calendar-module .calendar-weekdays {
    padding: 0.3rem 0.2rem;
  }

  .calendar-module .calendar-weekdays > * {
    padding: 0.15rem 0.05rem;
    font-size: 0.62rem;
    letter-spacing: 0.025em;
    text-align: center;
  }

  .calendar-module .calendar-day {
    min-height: 68px;
    gap: 0.2rem;
    padding: 0.25rem 0.18rem;
  }

  .calendar-module .calendar-day-number {
    width: 1.55rem;
    height: 1.55rem;
    align-self: center;
    font-size: 0.72rem;
  }

  .calendar-module .calendar-event {
    min-height: 1.25rem;
    padding: 0.16rem 0.2rem;
    border-left-width: 2px;
    border-radius: 4px;
    font-size: 0.62rem;
    line-height: 1.15;
  }

  .calendar-module .calendar-list-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.35rem;
    padding: 0.75rem 0.8rem;
  }

  .calendar-module .calendar-list-date {
    font-size: 0.76rem;
  }
}

@media (max-width: 420px) {
  .calendar-module .calendar-controls {
    justify-content: flex-start;
  }

  .calendar-module #calendar-search-form {
    width: 100%;
  }

  .calendar-module #calendar-search {
    flex: 1 1 100%;
  }

  .calendar-module #calendar-source {
    flex: 1 1 auto;
  }

  .calendar-module .calendar-day {
    min-height: 58px;
    padding-inline: 0.12rem;
  }

  .calendar-module .calendar-day-number {
    width: 1.4rem;
    height: 1.4rem;
    font-size: 0.68rem;
  }

  .calendar-module .calendar-event,
  .calendar-module .calendar-day > [data-calendar-action="day"]:not(.calendar-day-number) {
    display: none;
  }

  .calendar-module .calendar-day-count {
    display: inline-flex;
    align-self: center;
    justify-content: center;
    min-width: 1.3rem;
    padding: 0.1rem 0.25rem;
    color: var(--calendar-ink);
    background: var(--calendar-canvas);
    border: 1px solid var(--calendar-border);
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
  }

  .calendar-module .calendar-summary {
    gap: 0.4rem 0.7rem;
    padding: 0.65rem 0.7rem;
    font-size: 0.82rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .calendar-module *,
  .calendar-module *::before,
  .calendar-module *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}