:root {
  --ui-ease-standard: cubic-bezier(0.22, 1, 0.36, 1);
  --ui-dur-fast: 160ms;
  --ui-dur-med: 260ms;
  --ui-dur-slow: 420ms;
}

html {
  scroll-behavior: smooth;
}

body {
  text-rendering: optimizeLegibility;
}

.ui-reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity var(--ui-dur-med) var(--ui-ease-standard),
    transform var(--ui-dur-med) var(--ui-ease-standard);
  will-change: transform, opacity;
}

.ui-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

a,
button,
.default-button,
.submit-btn,
.play-button,
.queue-toggle-btn,
.filter-btn,
.view-btn,
.game-card,
.product-card,
.stat-card,
.admin-panel {
  transition:
    transform var(--ui-dur-fast) var(--ui-ease-standard),
    box-shadow var(--ui-dur-fast) var(--ui-ease-standard),
    background-color var(--ui-dur-fast) var(--ui-ease-standard),
    border-color var(--ui-dur-fast) var(--ui-ease-standard),
    opacity var(--ui-dur-fast) var(--ui-ease-standard);
}

button:active,
.default-button:active,
.submit-btn:active,
.play-button:active {
  transform: translateY(1px) scale(0.995);
}

input,
select,
textarea {
  transition:
    border-color var(--ui-dur-fast) var(--ui-ease-standard),
    box-shadow var(--ui-dur-fast) var(--ui-ease-standard),
    background-color var(--ui-dur-fast) var(--ui-ease-standard),
    color var(--ui-dur-fast) var(--ui-ease-standard);
}

button.is-loading,
.default-button.is-loading,
.submit-btn.is-loading {
  position: relative;
  pointer-events: none;
  opacity: 0.82;
}

button.is-loading::after,
.default-button.is-loading::after,
.submit-btn.is-loading::after {
  content: "";
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-left: 8px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  animation: ui-spin 0.9s linear infinite;
  vertical-align: middle;
}

.ui-highlight {
  animation: ui-pulse 650ms var(--ui-ease-standard);
}

.ui-toast-host {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 10000;
  display: grid;
  gap: 10px;
  pointer-events: none;
}

.ui-toast {
  min-width: 220px;
  max-width: min(88vw, 360px);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 10px 12px;
  color: #ffffff;
  font-size: 13px;
  line-height: 1.35;
  background: rgba(15, 18, 31, 0.9);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  transform: translateY(8px);
  opacity: 0;
  animation: ui-toast-in var(--ui-dur-med) var(--ui-ease-standard) forwards;
}

.ui-toast.success {
  border-color: rgba(65, 214, 125, 0.5);
}

.ui-toast.error {
  border-color: rgba(255, 90, 95, 0.5);
}

.ui-toast.info {
  border-color: rgba(23, 224, 198, 0.5);
}

.ui-toast.out {
  animation: ui-toast-out 180ms ease forwards;
}

@keyframes ui-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes ui-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(23, 224, 198, 0.4);
  }
  100% {
    box-shadow: 0 0 0 10px rgba(23, 224, 198, 0);
  }
}

@keyframes ui-toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes ui-toast-out {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(8px);
  }
}

@media (max-width: 768px) {
  .ui-toast-host {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }

  .ui-toast {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .ui-reveal {
    opacity: 1;
    transform: none;
  }
}