/* ═══════════════════════════════════════════════════════════════════════════
   Availability Calendar Widget — Lino Cambi
   Embedded on /founding-guests.html. Reads /data/availability.json.
   Read-only; pre-fills the inquiry form via URL params.
   ═══════════════════════════════════════════════════════════════════════════ */

.availability-calendar {
  --cal-cell: clamp(36px, 5.5vw, 56px);
  --cal-gap: 2px;
  --cal-border: 1px solid var(--color-divider, rgba(28, 28, 26, 0.12));
  --cal-bg-open: var(--color-linen-white, #FAF7F0);
  --cal-bg-held: var(--color-stucco, #EFE6D5);
  --cal-bg-selected: var(--color-stucco, #EFE6D5);
  --cal-bg-selected-edge: var(--color-olive-deep, #3D4A2E);
  --cal-ink: var(--color-ink, #1C1C1A);
  --cal-muted: rgba(28, 28, 26, 0.55);
  --cal-faint: rgba(28, 28, 26, 0.3);
  --cal-accent: var(--color-olive-deep, #3D4A2E);
  --cal-terracotta: var(--color-terracotta, #C4602A);

  position: relative;
  margin-top: 2rem;
  font-family: var(--font-body, 'Satoshi', system-ui, sans-serif);
}

.availability-calendar__months {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
}

@media (max-width: 760px) {
  .availability-calendar__months {
    grid-template-columns: 1fr;
  }
  .availability-calendar__month--secondary {
    display: none;
  }
}

.availability-calendar__month-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 0.25rem 1rem;
  border-bottom: var(--cal-border);
}

.availability-calendar__month-title {
  font-family: var(--font-display, 'Cormorant Garamond', serif);
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  font-weight: 400;
  margin: 0;
  letter-spacing: 0.01em;
}

.availability-calendar__nav {
  display: flex;
  gap: 0.5rem;
}

.availability-calendar__nav-btn {
  background: none;
  border: 1px solid var(--color-divider, rgba(28, 28, 26, 0.18));
  width: 36px;
  height: 36px;
  font-size: 1rem;
  cursor: pointer;
  color: var(--cal-ink);
  font-family: inherit;
  transition: background 0.2s ease, color 0.2s ease;
}

.availability-calendar__nav-btn:hover:not(:disabled) {
  background: var(--cal-ink);
  color: var(--color-linen, #F5EFE4);
}

.availability-calendar__nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.availability-calendar__nav-btn:focus-visible {
  outline: 2px solid var(--cal-accent);
  outline-offset: 2px;
}

.availability-calendar__weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--cal-gap);
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.availability-calendar__weekday {
  text-align: center;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cal-muted);
  padding: 0.25rem 0;
}

.availability-calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--cal-gap);
}

.availability-calendar__cell {
  position: relative;
  height: var(--cal-cell);
  background: none;
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--cal-ink);
  cursor: pointer;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.availability-calendar__cell--blank {
  visibility: hidden;
  pointer-events: none;
}

/* OPEN — default, hoverable */
.availability-calendar__cell[data-state="open"] {
  background: var(--cal-bg-open);
}

.availability-calendar__cell[data-state="open"]:hover {
  background: var(--cal-bg-selected);
}

.availability-calendar__cell[data-state="open"]:focus-visible {
  outline: 2px solid var(--cal-accent);
  outline-offset: 2px;
  z-index: 1;
}

/* HELD — sand fill, muted italic */
.availability-calendar__cell[data-state="held"] {
  background: var(--cal-bg-held);
  color: var(--cal-muted);
  font-style: italic;
}

.availability-calendar__cell[data-state="held"]:hover {
  outline: 1px dashed var(--cal-muted);
  outline-offset: -2px;
}

/* CLOSED — no fill, very faint */
.availability-calendar__cell[data-state="closed"] {
  color: var(--cal-faint);
  cursor: not-allowed;
}

/* Today */
.availability-calendar__cell--today::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 1px;
  background: var(--cal-accent);
}

/* Founder-era marker (first-season dates, June 2027 → ~June 2028) */
.availability-calendar__cell--founder-era[data-state="open"]::before {
  content: '';
  position: absolute;
  top: 5px;
  right: 6px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cal-accent);
  opacity: 0.6;
}

/* Selected range */
.availability-calendar__cell--selected {
  background: var(--cal-bg-selected) !important;
}

.availability-calendar__cell--selected-start,
.availability-calendar__cell--selected-end {
  border: 1px solid var(--cal-bg-selected-edge) !important;
  background: var(--cal-bg-selected) !important;
}

/* Floating summary card */
.availability-calendar__summary {
  position: sticky;
  bottom: 1rem;
  margin-top: 2rem;
  padding: 1rem 1.5rem;
  background: var(--cal-ink);
  color: var(--color-linen, #F5EFE4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-radius: 2px;
  box-shadow: 0 10px 30px rgba(28, 28, 26, 0.15);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 5;
}

.availability-calendar__summary[data-active="true"] {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.availability-calendar__summary-text {
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
}

.availability-calendar__summary-text strong {
  font-family: var(--font-display, 'Cormorant Garamond', serif);
  font-weight: 400;
  font-size: 1.125rem;
  margin-right: 0.5rem;
}

.availability-calendar__inquire {
  background: var(--cal-terracotta);
  color: var(--color-linen, #F5EFE4);
  border: none;
  padding: 0.75rem 1.25rem;
  font-family: inherit;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.2s ease;
  white-space: nowrap;
}

.availability-calendar__inquire:hover {
  background: var(--cal-accent);
}

.availability-calendar__inquire:focus-visible {
  outline: 2px solid var(--color-linen, #F5EFE4);
  outline-offset: 2px;
}

/* Inline messages (1-night attempt, closed-date attempt) */
.availability-calendar__message {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--cal-bg-held);
  color: var(--cal-ink);
  font-style: italic;
  font-size: 0.9375rem;
  text-align: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.availability-calendar__message[data-visible="true"] {
  opacity: 1;
}

/* Loading state */
.availability-calendar__loading {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--cal-muted);
  font-style: italic;
}

/* Live region (screen-reader announcements) */
.availability-calendar__sr {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Tooltip on Held cells (CSS-only) */
.availability-calendar__cell[data-state="held"][title]:hover::after {
  content: attr(title);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--cal-ink);
  color: var(--color-linen, #F5EFE4);
  padding: 0.4rem 0.6rem;
  font-size: 0.75rem;
  white-space: nowrap;
  z-index: 10;
  pointer-events: none;
  font-style: normal;
}

@media (prefers-reduced-motion: reduce) {
  .availability-calendar *,
  .availability-calendar *::before,
  .availability-calendar *::after {
    transition: none !important;
    animation: none !important;
  }
}