#app {
  width: 100vw;
  height: 100dvh;
  overflow: hidden;
  position: relative;
}

.screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: scale(0.98);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  pointer-events: none;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.screen.active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
  z-index: 1;
}

.screen-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  min-height: 60px;
  position: relative;
  z-index: 10;
}

.screen-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding: var(--spacing-md) var(--spacing-lg);
}

.screen-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  position: relative;
  z-index: 10;
}

/* Modal overlay */
#modal-root {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
}

#modal-root.has-modal {
  pointer-events: auto;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: var(--bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.modal-content {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: scaleIn 0.3s ease;
}

/* Toast notifications */
#toast-root {
  position: fixed;
  top: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  background: var(--team-primary);
  color: var(--text-light);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  font-weight: 600;
  animation: slideDown 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
  white-space: nowrap;
}

/* Safe area for iPad */
@supports (padding: env(safe-area-inset-top)) {
  .screen-header {
    padding-top: calc(var(--spacing-md) + env(safe-area-inset-top));
  }
  .screen-footer,
  .activity-footer {
    padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
  }
}

/* Extra bottom padding for PWA to avoid home indicator overlap */
.activity-footer {
  padding-bottom: 20px;
}

/* Landscape enforcement message */
.rotate-message {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-arena);
  color: var(--text-light);
  z-index: 9999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  font-size: var(--font-lg);
}

@media (orientation: portrait) {
  .rotate-message { display: flex; }
  #app { display: none; }
}