/* ============================================
   GHRC Website - Running Calendar (Grid Layout)
   No inner scrollbars — flows naturally in the page.
   Race details open as a centered overlay.
   ============================================ */

.calendar-section {
  padding: var(--section-padding);
  background: var(--bg-secondary);
}

/* ── Legend (above the grid) ── */
.calendar__legend {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
}

.calendar__legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.calendar__legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.calendar__legend-dot--5k { background: var(--color-5k); }
.calendar__legend-dot--10k { background: var(--color-10k); }
.calendar__legend-dot--21k { background: var(--color-21k); }
.calendar__legend-dot--42k { background: var(--color-42k); }
.calendar__legend-dot--ultra { background: var(--color-ultra); }

/* ── Month Grid (responsive, no scroll) ── */
.calendar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

/* ── Individual Month Card ── */
.calendar__month {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  min-height: 120px;
  transition: border-color var(--duration-fast) var(--ease-out);
}

.calendar__month:hover {
  border-color: rgba(29, 185, 84, 0.3);
}

.calendar__month--current {
  border-color: var(--color-primary);
  box-shadow: 0 0 16px rgba(29, 185, 84, 0.1);
}

.calendar__month--empty {
  opacity: 0.5;
}

.calendar__month-label {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-color);
}

.calendar__month--current .calendar__month-label {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ── Races stacked inside a month ── */
.calendar__races {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* ── Individual Race Row ── */
.calendar__race-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  background: rgba(255, 255, 255, 0.03);
}

.calendar__race-card:hover {
  background: rgba(29, 185, 84, 0.08);
}

/* Color marker dot */
.calendar__race-marker {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

.calendar__race-marker--5k { background: var(--color-5k); }
.calendar__race-marker--10k { background: var(--color-10k); }
.calendar__race-marker--21k { background: var(--color-21k); }
.calendar__race-marker--42k { background: var(--color-42k); }
.calendar__race-marker--ultra { background: var(--color-ultra); }

/* Race name & date in the row */
.calendar__race-info {
  flex: 1;
  min-width: 0;
}

.calendar__race-name {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  line-height: 1.3;
}

.calendar__race-date-small {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: 1px;
}

/* Empty month marker */
.calendar__empty {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) 0;
  color: var(--text-tertiary);
  font-size: var(--text-xs);
  font-style: italic;
}

/* ═══════════════════════════════════
   OVERLAY - Race Detail Popup
   Fixed overlay that sits on top of everything.
   ═══════════════════════════════════ */

.calendar__overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: var(--space-6);
}

.calendar__overlay.active {
  opacity: 1;
  visibility: visible;
}

.calendar__popup {
  background: var(--bg-card);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-xl, 16px);
  padding: var(--space-8);
  max-width: 440px;
  width: 100%;
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.5),
    0 0 24px rgba(29, 185, 84, 0.15);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s ease;
  position: relative;
}

.calendar__overlay.active .calendar__popup {
  transform: translateY(0) scale(1);
}

/* Close button */
.calendar__popup-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  font-size: 18px;
  line-height: 1;
}

.calendar__popup-close:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Popup content styling */
.calendar__popup-name {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  padding-right: var(--space-10);
  line-height: 1.3;
}

.calendar__popup-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.calendar__popup-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.calendar__popup-row svg {
  flex-shrink: 0;
  color: var(--text-tertiary);
}

/* Distances section */
.calendar__popup-distances {
  margin-bottom: var(--space-5);
}

.calendar__popup-distances-label {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-2);
}

.calendar__popup-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.calendar__popup-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: #fff;
}

.calendar__popup-badge--5k { background: var(--color-5k); }
.calendar__popup-badge--10k { background: var(--color-10k); }
.calendar__popup-badge--21k { background: var(--color-21k); }
.calendar__popup-badge--42k { background: var(--color-42k); }
.calendar__popup-badge--ultra { background: var(--color-ultra); }

/* Description */
.calendar__popup-desc {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--space-5);
  line-height: 1.6;
}

/* Entry button */
.calendar__popup-enter {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: #000;
  font-weight: var(--font-bold);
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out);
}

.calendar__popup-enter:hover {
  background: var(--color-primary-light, #22d65e);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(29, 185, 84, 0.3);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .calendar__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .calendar__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .calendar__popup {
    padding: var(--space-6);
    max-width: 360px;
  }

  .calendar__popup-name {
    font-size: var(--text-lg);
  }
}

@media (max-width: 480px) {
  .calendar__grid {
    grid-template-columns: 1fr;
  }

  .calendar__popup {
    margin: var(--space-4);
    padding: var(--space-5);
  }
}