:root {
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);
  --anim-fast: 180ms;
  --anim-med: 260ms;
  --anim-slow: 380ms;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}

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

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes menuIn {
  from {
    opacity: 0;
    transform: translateY(6px) scaleY(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scaleY(1);
  }
}

@keyframes menuOut {
  from {
    opacity: 1;
    transform: translateY(0) scaleY(1);
  }
  to {
    opacity: 0;
    transform: translateY(6px) scaleY(0.92);
  }
}

@keyframes bannerIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes messagePop {
  0% {
    opacity: 0;
    transform: translateY(12px) scale(0.97);
  }
  60% {
    opacity: 1;
    transform: translateY(-3px) scale(1.01);
  }
  80% {
    transform: translateY(1px) scale(1);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateX(-16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes chatPanelEnter {
  from {
    opacity: 0;
    transform: translateX(15px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes chatPanelExit {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(-15px);
  }
}

.chat-panel-enter {
  animation: chatPanelEnter 0.25s cubic-bezier(0.2, 0.0, 0.2, 1) forwards;
}

.chat-panel-exit {
  animation: chatPanelExit 0.2s cubic-bezier(0.4, 0.0, 1, 1) forwards;
}

@keyframes messageSlideInOwn {
  from {
    opacity: 0;
    transform: translateX(16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes statusPop {
  from {
    opacity: 0.4;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes tileIn {
  from {
    opacity: 0;
    transform: scale(0.98);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes mediaIn {
  from {
    opacity: 0;
    transform: scale(0.98);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes modalOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
}

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

.modal:not([hidden]) .modal-card {
  animation: modalIn var(--anim-med) var(--ease-out);
}

.modal:not([hidden]) .modal-backdrop {
  animation: fadeIn var(--anim-med) var(--ease-out);
}

.call-modal:not([hidden]) .call-card {
  animation: modalIn var(--anim-med) var(--ease-out);
}

.call-modal:not([hidden]) .modal-backdrop {
  animation: fadeIn var(--anim-med) var(--ease-out);
}

.call-modal.is-leaving .call-card {
  animation: modalOut var(--anim-med) var(--ease-in-out);
}

.call-modal.is-leaving .modal-backdrop {
  animation: fadeOut var(--anim-med) var(--ease-in-out);
}

.user-menu-dropdown:not([hidden]) {
  transform-origin: bottom center;
  animation: menuFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.user-menu-dropdown.is-closing {
  transform-origin: bottom center;
  animation: menuFadeOut 0.15s ease-in forwards;
  pointer-events: none;
}

.call-banner:not([hidden]) {
  animation: bannerIn var(--anim-med) var(--ease-out);
}

.message.message-enter {
  animation: messageSlideIn var(--anim-med) var(--ease-out);
  will-change: transform, opacity;
}

.message.message-enter.own {
  animation-name: messageSlideInOwn;
}

.status-icon.status-animate .icon {
  animation: statusPop var(--anim-fast) var(--ease-out);
}

.call-participant {
  --flip-x: 0px;
  --flip-y: 0px;
  --tile-scale: 1;
  animation: tileIn var(--anim-med) var(--ease-out);
  transform: translate(var(--flip-x), var(--flip-y)) scale(var(--tile-scale));
  transition:
    transform var(--anim-slow) var(--ease-smooth),
    opacity var(--anim-med) var(--ease-out),
    box-shadow var(--anim-med) var(--ease-smooth),
    left var(--anim-slow) var(--ease-smooth),
    top var(--anim-slow) var(--ease-smooth),
    right var(--anim-slow) var(--ease-smooth),
    bottom var(--anim-slow) var(--ease-smooth),
    width var(--anim-slow) var(--ease-smooth),
    height var(--anim-slow) var(--ease-smooth);
  will-change: transform, opacity;
}

.call-participant.is-focus {
  box-shadow: 0 20px 48px color-mix(in srgb, var(--bg) 65%, transparent);
  --tile-scale: 1.005;
}

.call-participant.is-thumb {
  opacity: 0.94;
  --tile-scale: 0.97;
}

.call-incoming {
  animation: fadeIn var(--anim-med) var(--ease-out);
}

.lightbox {
  animation: fadeIn var(--anim-med) var(--ease-out);
}

.lightbox img,
.lightbox video {
  animation: mediaIn var(--anim-fast) var(--ease-out);
}

.dropdown-item,
.icon-button,
.button,
.call-control,
.message-action {
  transition:
    transform var(--anim-fast) var(--ease-spring),
    box-shadow var(--anim-fast) var(--ease-out),
    border-color var(--anim-fast) var(--ease-out),
    background var(--anim-fast) var(--ease-out);
}

.dropdown-item:active,
.icon-button:active,
.button:active,
.call-control:active,
.message-action:active {
  transform: scale(0.95);
  transition-duration: 80ms;
}

@keyframes buttonBounce {
  0% {
    transform: scale(1);
  }
  40% {
    transform: scale(0.94);
  }
  60% {
    transform: scale(1.02);
  }
  100% {
    transform: scale(1);
  }
}

.button.is-bouncing,
.icon-button.is-bouncing {
  animation: buttonBounce 320ms var(--ease-out);
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.skeleton {
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--panel-2) 100%, transparent) 25%,
    color-mix(in srgb, var(--stroke) 60%, var(--panel-2)) 50%,
    color-mix(in srgb, var(--panel-2) 100%, transparent) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
  border-radius: 8px;
}

.skeleton-text {
  height: 14px;
  border-radius: 6px;
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  flex-shrink: 0;
}

.skeleton-line {
  height: 12px;
  border-radius: 4px;
}

.skeleton-chat {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
}

.skeleton-chat-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skeleton-chat-content .skeleton-line:first-child {
  width: 60%;
}

.skeleton-chat-content .skeleton-line:last-child {
  width: 40%;
}

.skeleton-media {
  aspect-ratio: 16 / 9;
  border-radius: 12px;
}

.modal-card {
  transition: height var(--anim-slow) var(--ease-smooth);
}

@keyframes bobr-fall {
  0% {
    transform: translateY(-100px) rotate(var(--start-rot)) scale(var(--scale));
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(calc(100vh + 100px)) rotate(var(--end-rot)) scale(var(--scale));
    opacity: 0;
  }
}

.bobropad-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20000;
  overflow: hidden;
}

.bobropad-beaver {
  position: absolute;
  top: -100px;
  width: 64px;
  height: 64px;
  background-size: contain;
  background-repeat: no-repeat;
  will-change: transform, opacity;
  animation: bobr-fall var(--duration) linear forwards;
}