/* ============================================
   SWAP WORKOUT MODAL
   ============================================ */

.swap-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease-out;
  padding: 0;
}

.swap-modal-content {
  background: white;
  border-radius: 12px 12px 0 0;
  width: 100%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.1);
}

.swap-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.swap-modal-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.swap-modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #999;
  padding: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: all 0.2s;
}

.swap-modal-close:hover {
  background: #f0f0f0;
  color: #333;
}

.swap-modal-close:active {
  transform: scale(0.95);
}

/* ============================================
   CURRENT EXERCISE
   ============================================ */

.swap-current-exercise {
  background: #f5f5f5;
  padding: 16px;
  border-radius: 8px;
  border-left: 4px solid var(--accent);
}

.swap-current-label {
  font-size: 12px;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
  font-weight: 500;
}

.swap-current-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.swap-current-group {
  font-size: 13px;
  color: #666;
}

/* ============================================
   ALTERNATIVES LIST
   ============================================ */

.swap-alternatives-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.swap-alternatives-label {
  font-size: 12px;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
  padding: 0 4px;
}

.swap-alternative-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 48px;
}

.swap-alternative-item:hover {
  background: #fafafa;
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(255, 107, 74, 0.1);
}

.swap-alternative-item:active {
  transform: scale(0.98);
}

.swap-alternative-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.swap-alternative-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
}

.swap-alternative-group {
  font-size: 12px;
  color: #999;
}

.swap-alternative-desc {
  font-size: 12px;
  color: #666;
  margin-top: 2px;
  line-height: 1.3;
  word-break: break-word;
}

.swap-alternative-icon {
  color: #ccc;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================
   LOADING STATE
   ============================================ */

.swap-loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  gap: 12px;
}

.swap-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid #f0f0f0;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.swap-loading-state p {
  color: #999;
  font-size: 13px;
  margin: 0;
}

/* ============================================
   EMPTY STATE
   ============================================ */

.swap-empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}

.swap-empty-state p {
  color: #999;
  font-size: 13px;
  text-align: center;
  margin: 0;
}

/* ============================================
   ERROR MESSAGE
   ============================================ */

.swap-error-message {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: #fff5f5;
  border: 1px solid #fdd;
  border-radius: 6px;
  padding: 12px;
  color: #c33;
  font-size: 13px;
}

.swap-error-message svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* ============================================
   ACTIONS
   ============================================ */

.swap-modal-actions {
  display: flex;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid #eee;
}

.swap-cancel-btn {
  flex: 1;
  padding: 12px 16px;
  background: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  min-height: 44px;
}

.swap-cancel-btn:hover:not(:disabled) {
  background: #e8e8e8;
  border-color: #ccc;
}

.swap-cancel-btn:active:not(:disabled) {
  transform: scale(0.98);
}

.swap-cancel-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */

@media (max-width: 600px) {
  .swap-modal-content {
    border-radius: 12px 12px 0 0;
    max-height: 90vh;
    padding: 16px;
  }

  .swap-modal-header h3 {
    font-size: 16px;
  }

  .swap-alternative-item {
    min-height: 56px;
    padding: 12px;
  }

  .swap-alternative-name {
    font-size: 15px;
  }

  .swap-current-exercise {
    padding: 12px;
  }

  .swap-modal-actions {
    flex-direction: column;
    gap: 8px;
  }

  .swap-cancel-btn {
    min-height: 48px;
  }
}

/* Dark mode support (if app has dark mode) */
@media (prefers-color-scheme: dark) {
  .swap-modal-content {
    background: var(--bg-secondary);
  }

  .swap-modal-close {
    color: #999;
  }

  .swap-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
  }

  .swap-current-exercise {
    background: rgba(255, 255, 255, 0.05);
  }

  .swap-alternative-item {
    border-color: #444;
  }

  .swap-alternative-item:hover {
    background: rgba(255, 255, 255, 0.08);
  }

  .swap-cancel-btn {
    background: rgba(255, 255, 255, 0.1);
    border-color: #444;
  }

  .swap-cancel-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
  }
}