/* ========== CALENDAR LAYOUT - Header, two-panel layout ========== */

/* ========== ASSEMBLY LINE HEADER ========== */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-xl);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Station badge */
.station-badge {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.station-badge__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--accent);
  color: var(--bg-primary);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: var(--font-xs);
}

.station-badge__label {
  font-size: var(--font-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--text-muted);
}

/* Project title */
.header h1 {
  font-size: var(--font-lg);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

/* ========== TWO-PANEL LAYOUT ========== */
.calendar-container {
  display: flex;
  height: calc(100vh - 52px);
  overflow: hidden;
}

/* ========== TEAM PANEL ========== */
.team-panel {
  flex: 0 0 280px;
  min-width: 240px;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
}

.team-header {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  background: var(--bg-tertiary);
}

.team-title {
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--text-primary);
}

.team-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.team-footer {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-top: 1px solid var(--border);
}

.team-add-btn {
  width: 100%;
  padding: var(--spacing-sm);
  background: transparent;
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: var(--font-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.team-add-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-subtle);
}

/* Capacity Summary */
.capacity-summary {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--border);
  background: var(--bg-tertiary);
}

.capacity-summary__title {
  font-size: var(--font-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.capacity-summary__stats {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.capacity-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-sm);
}

.capacity-stat__label {
  color: var(--text-secondary);
}

.capacity-stat__value {
  font-weight: 600;
  color: var(--text-primary);
}

.capacity-stat__value--highlight {
  color: var(--accent);
}

/* ========== CALENDAR PANEL ========== */
.calendar-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ========== CALENDAR CONTROLS ========== */
.calendar-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}

.view-toggle {
  display: flex;
  gap: var(--spacing-xs);
  background: var(--bg-secondary);
  padding: 2px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.view-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: var(--font-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.view-btn:hover {
  color: var(--text-primary);
}

.view-btn--active {
  background: var(--accent-subtle);
  color: var(--accent-bright);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-sm);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.nav-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.nav-btn--today {
  padding: var(--spacing-xs) var(--spacing-md);
}

.date-range {
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--text-primary);
}

/* ========== CALENDAR GRID CONTAINER ========== */
.calendar-grid {
  flex: 1;
  overflow: auto;
  padding: var(--spacing-lg);
}

/* ========== EMPTY STATES ========== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  text-align: center;
}

.empty-state__icon {
  width: 48px;
  height: 48px;
  color: var(--text-muted);
  opacity: 0.5;
  margin-bottom: var(--spacing-lg);
}

.empty-state__title {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.empty-state__text {
  font-size: var(--font-sm);
  color: var(--text-muted);
  max-width: 300px;
  line-height: var(--leading-relaxed);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 900px) {
  .header {
    flex-wrap: wrap;
  }

  .header-right {
    flex-wrap: wrap;
  }

  .calendar-container {
    flex-direction: column;
    height: auto;
  }

  .team-panel {
    flex: none;
    max-width: none;
    height: auto;
    max-height: 30vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .team-list {
    max-height: 150px;
  }

  .calendar-panel {
    min-height: 60vh;
  }
}

@media (max-width: 640px) {
  .header-left {
    flex-wrap: wrap;
    width: 100%;
  }

  .header-right {
    width: 100%;
    justify-content: flex-start;
  }

  .stat-item__label {
    display: none;
  }

  .action-group {
    display: none;
  }

  .calendar-controls {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .date-range {
    width: 100%;
    text-align: center;
  }
}