/* Modal Dialogs (QR Code, Text Share, Receive Confirmation, Settings, Media Preview, History) */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-window {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: scale(0.92) translateY(10px);
  transition: all var(--transition-spring);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
}

.modal-window.modal-wide {
  max-width: 600px;
}

.modal-backdrop.active .modal-window {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: 1.25rem 1.5rem 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.modal-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  border-top: 1px solid var(--border-color);
}

/* Modal Tabs (QR vs Join Room) */
.modal-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bg-tertiary);
  padding: 4px;
  border-radius: var(--radius-md);
  width: 100%;
  gap: 4px;
}

.modal-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.modal-tab-btn.active {
  background: var(--bg-secondary);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.modal-pane {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  gap: 1rem;
}

.modal-pane.hidden {
  display: none !important;
}

/* QR Container */
.qr-container {
  background: #ffffff;
  padding: 1rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-canvas {
  width: 200px !important;
  height: 200px !important;
  display: block;
}

.qr-pin-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-tertiary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

.qr-pin-digits {
  font-size: 1.1rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent);
  letter-spacing: 0.05em;
}

.join-room-input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-size: 1.2rem;
  font-weight: 800;
  text-align: center;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  outline: none;
  transition: border-color var(--transition-fast);
}

.join-room-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

/* Text Share Modal */
.text-share-input {
  width: 100%;
  min-height: 140px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  resize: vertical;
  outline: none;
}

.text-share-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

/* Incoming Modal */
.incoming-sender-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-tertiary);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.incoming-sender-avatar {
  font-size: 2rem;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.incoming-sender-details {
  display: flex;
  flex-direction: column;
}

.incoming-sender-name {
  font-weight: 800;
  font-size: 1rem;
  color: var(--text-primary);
}

.incoming-sender-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.incoming-files-preview {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  max-height: 150px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  background: var(--bg-tertiary);
}

.incoming-file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  padding: 0.3rem 0.5rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
}

/* Settings Form */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.form-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent);
}

/* Theme selector grid with 5 themes */
.theme-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(135px, 1fr));
  gap: 0.5rem;
}

.theme-opt-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  color: var(--text-primary);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
  height: 42px;
  min-height: 42px;
  width: 100%;
  box-sizing: border-box;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-opt-btn span {
  white-space: nowrap;
  line-height: 1;
}

.theme-opt-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-focus);
}

.theme-opt-btn.active {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}

/* Action Sheet Modal */
.action-tiles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.action-tile-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.6rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.action-tile-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-focus);
  transform: translateY(-2px);
}

.action-tile-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.action-tile-info {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.action-tile-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.action-tile-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Media Preview Modal */
.media-preview-container {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 200px;
  max-height: 380px;
}

.media-preview-img {
  max-width: 100%;
  max-height: 360px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.media-preview-video {
  width: 100%;
  max-height: 340px;
  outline: none;
  background: #000;
}

.media-preview-audio-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  width: 100%;
}

.media-preview-code {
  width: 100%;
  background: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
  padding: 1rem;
  border-radius: var(--radius-sm);
  max-height: 320px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
}