:root {
  --motion-fast: 160ms;
  --motion-mid: 320ms;
  --motion-slow: 620ms;
  --motion-ease: cubic-bezier(.2, .8, .2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  text-rendering: optimizeLegibility;
  animation: pageIn var(--motion-slow) var(--motion-ease) both;
}

::selection {
  background: rgba(0, 218, 248, .28);
  color: #fff;
}

:where(a, button, input, textarea, select, label, [role="button"], .btn, .icon-btn) {
  transition:
    transform var(--motion-fast) var(--motion-ease),
    border-color var(--motion-fast) var(--motion-ease),
    background-color var(--motion-fast) var(--motion-ease),
    color var(--motion-fast) var(--motion-ease),
    box-shadow var(--motion-fast) var(--motion-ease),
    opacity var(--motion-fast) var(--motion-ease),
    filter var(--motion-fast) var(--motion-ease);
}

:where(button, .btn, .icon-btn, a[href], [role="button"]):active {
  transform: translateY(1px) scale(.985);
}

:where(input, textarea, select):focus {
  transform: translateY(-1px);
}

:where(.btn-primary, button[type="submit"]) {
  background-size: 180% 180%;
}

:where(.btn-primary, button[type="submit"]):hover {
  box-shadow: 0 14px 42px rgba(0, 218, 248, .2);
  filter: saturate(1.08);
}

:where(.panel, .panel-soft, .glass-panel, .glass-card, .project-card, .task-card, .drop-zone, [data-video-list] > *, [data-member-list] > *, [data-project-grid] > *) {
  position: relative;
  overflow: hidden;
  transition:
    transform var(--motion-mid) var(--motion-ease),
    border-color var(--motion-mid) var(--motion-ease),
    background-color var(--motion-mid) var(--motion-ease),
    box-shadow var(--motion-mid) var(--motion-ease),
    opacity var(--motion-mid) var(--motion-ease),
    filter var(--motion-mid) var(--motion-ease);
}

:where(.panel, .panel-soft, .glass-panel, .glass-card, .project-card, .task-card, .drop-zone):hover {
  box-shadow: 0 18px 48px rgba(0, 0, 0, .18);
}

body.auth-checking {
  background: #131317 !important;
  background-image: none !important;
}

:where(nav, header) {
  animation: slideDown var(--motion-slow) var(--motion-ease) both;
}

:where(.modal-card, [data-task-modal]:not(.is-hidden) article, [data-create-modal]:not(.is-hidden) form) {
  animation: modalLift var(--motion-mid) var(--motion-ease) both;
}

:where([data-toast]):not(.is-hidden) {
  animation: toastIn var(--motion-mid) var(--motion-ease) both;
}

.motion-reveal {
  opacity: 0;
  filter: blur(8px);
  transform: translate3d(0, 18px, 0) scale(.985);
}

.motion-reveal.motion-visible {
  opacity: 1;
  filter: blur(0);
  transform: translate3d(0, 0, 0) scale(1);
  transition:
    opacity var(--motion-slow) var(--motion-ease),
    filter var(--motion-slow) var(--motion-ease),
    transform var(--motion-slow) var(--motion-ease);
}

.motion-stagger > .motion-reveal:nth-child(2) { transition-delay: 45ms; }
.motion-stagger > .motion-reveal:nth-child(3) { transition-delay: 90ms; }
.motion-stagger > .motion-reveal:nth-child(4) { transition-delay: 135ms; }
.motion-stagger > .motion-reveal:nth-child(5) { transition-delay: 180ms; }
.motion-stagger > .motion-reveal:nth-child(6) { transition-delay: 225ms; }

.material-symbols-outlined {
  transition: transform var(--motion-fast) var(--motion-ease), color var(--motion-fast) var(--motion-ease);
}

:where(a, button, [role="button"]):hover > .material-symbols-outlined,
:where(a, button, [role="button"]):hover .material-symbols-outlined {
  transform: translateY(-1px) scale(1.06);
}

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

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes modalLift {
  from {
    opacity: 0;
    transform: translateY(14px) scale(.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

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

  .motion-reveal {
    opacity: 1;
    filter: none;
    transform: none;
  }
}