/* Glass panels */
.glass-panel {
  background: var(--bg-chat-pane);
  backdrop-filter: blur(var(--glass-blur)) saturate(190%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(190%);
  border: 1px solid var(--border-glass);
}

.glass-sidebar {
  background: var(--bg-sidebar);
  backdrop-filter: blur(var(--glass-blur)) saturate(190%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(190%);
  border-right: 1px solid var(--border-glass);
}

.glass-header {
  background: var(--bg-header);
  backdrop-filter: blur(var(--glass-blur)) saturate(190%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(190%);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 1px 0 0 var(--border-glass);
}

.glass-composer {
  background: var(--bg-composer);
  backdrop-filter: blur(var(--glass-blur)) saturate(190%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(190%);
  border-top: 1px solid var(--border-glass);
}

.glass-card {
  background: var(--bg-modal);
  backdrop-filter: blur(35px) saturate(200%);
  -webkit-backdrop-filter: blur(35px) saturate(200%);
  border: 1px solid var(--border-glass);
  border-top: 1px solid var(--border-highlight);
  box-shadow: var(--glass-shadow);
  border-radius: 22px;
}

.glass-pill {
  background: var(--bg-input);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
}

/* Glass buttons */
.glass-btn {
  background: var(--bg-input);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  border-radius: 12px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--spring-smooth);
}

.glass-btn:hover {
  background: var(--bg-item-hover);
  transform: scale(1.02);
}

.glass-btn:active {
  transform: scale(0.96);
}

.glass-btn-primary {
  background: linear-gradient(180deg, var(--imessage-blue-start), var(--imessage-blue-end));
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 14px rgba(0, 122, 255, 0.35);
}

.glass-btn-primary:hover {
  background: linear-gradient(180deg, var(--imessage-blue-start), #0069d9);
  box-shadow: 0 6px 20px rgba(0, 122, 255, 0.45);
  transform: scale(1.02);
}

.glass-btn-primary:active {
  transform: scale(0.96);
}

/* Modal overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-modal-overlay);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--duration-normal) var(--spring-smooth);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.modal-overlay .glass-card {
  transform: scale(0.92) translateY(20px);
  transition: all var(--duration-normal) var(--spring-bounce);
}

.modal-overlay.active .glass-card {
  transform: scale(1) translateY(0);
}

/* Safety Number & Verification Styles */
.verified-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(52, 199, 89, 0.15);
  border: 1px solid rgba(52, 199, 89, 0.4);
  color: #34C759;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 12px;
  letter-spacing: 0.2px;
}

.safety-modal-card {
  width: 92%;
  max-width: 440px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.safety-shield-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(0, 122, 255, 0.15);
  border: 1px solid rgba(0, 122, 255, 0.3);
  color: var(--primary-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.safety-alert-banner {
  background: rgba(255, 69, 58, 0.18);
  border: 1px solid rgba(255, 69, 58, 0.45);
  color: #FF453A;
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.safety-number-container {
  background: var(--bg-tertiary, rgba(0, 0, 0, 0.25));
  border: 1px solid var(--border-glass, rgba(255, 255, 255, 0.1));
  border-radius: 14px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.safety-number-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px 10px;
  text-align: center;
}

.safety-number-block {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  padding: 6px 4px;
  border-radius: 6px;
  user-select: all;
}

.safety-fingerprint-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 8px;
  border-top: 1px solid var(--border-glass, rgba(255, 255, 255, 0.08));
}

.safety-fingerprint {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

/* Glass Skeleton Shimmer */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.glass-skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-input) 0%,
    var(--bg-item-active) 50%,
    var(--bg-input) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.8s infinite ease-in-out;
  border-radius: 12px;
  pointer-events: none;
}

/* View Transitions API (Theme Switch Cross-Fade) */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.28s;
  animation-timing-function: var(--spring-smooth);
}