/* Transitions.dev — dropdown, sliding-tab, and modal recipes.
   Source: https://github.com/Jakubantalik/transitions.dev
   App-specific sizing and palette hooks follow the original snippets. */


:root {
  --dropdown-open-dur: 250ms;
  --dropdown-close-dur: 150ms;
  --dropdown-pre-scale: 0.97;
  --dropdown-closing-scale: 0.99;
  --dropdown-ease: cubic-bezier(0.22, 1, 0.36, 1);
}


.t-dropdown {
  transform-origin: top left;
  transform: scale(var(--dropdown-pre-scale));
  opacity: 0;
  pointer-events: none;
  transition:
    transform var(--dropdown-open-dur) var(--dropdown-ease),
    opacity   var(--dropdown-open-dur) var(--dropdown-ease);
  will-change: transform, opacity;
}
.t-dropdown[data-origin="top-right"]     { transform-origin: top right; }
.t-dropdown[data-origin="top-center"]    { transform-origin: top center; }
.t-dropdown[data-origin="bottom-left"]   { transform-origin: bottom left; }
.t-dropdown[data-origin="bottom-center"] { transform-origin: bottom center; }
.t-dropdown[data-origin="bottom-right"]  { transform-origin: bottom right; }

.t-dropdown.is-open {
  transform: scale(1);
  opacity: 1;
  pointer-events: auto;
}
.t-dropdown.is-closing {
  transform: scale(var(--dropdown-closing-scale));
  opacity: 0;
  pointer-events: none;
  transition:
    transform var(--dropdown-close-dur) var(--dropdown-ease),
    opacity   var(--dropdown-close-dur) var(--dropdown-ease);
}

@media (prefers-reduced-motion: reduce) {
  .t-dropdown { transition: none !important; }
}


:root {
  --tabs-dur: 250ms;
  --tabs-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --tabs-text-muted: rgba(15, 15, 15, 0.8);
  --tabs-text-active: #0f0f0f;
  --tabs-bar-bg: #f1f1f1;
  --tabs-pill-bg: #ffffff;
}


/* The bar is just a flex container with padding for the pill
   to sit inside. Tabs sit on z-index: 1, the pill on z-index: 0,
   so labels read above the pill background. */
.t-tabs {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px;
  border-radius: 48px;
  background: var(--tabs-bar-bg);
}
.t-tab {
  position: relative;
  appearance: none;
  border: 0;
  background: transparent;
  height: 30px;
  padding: 4px 12px;
  color: var(--tabs-text-muted);
  cursor: pointer;
  border-radius: 48px;
  z-index: 1;
  transition: color var(--tabs-dur) var(--tabs-ease);
}
.t-tab:not([aria-selected="true"]):hover,
.t-tab[aria-selected="true"] {
  color: var(--tabs-text-active);
}

/* The pill: width + transform are written inline by JS so
   the transition tweens between the previous and next
   measured positions. */
.t-tabs-pill {
  position: absolute;
  top: 3px;
  left: 0;
  height: 30px;
  width: 0;
  background: var(--tabs-pill-bg);
  border-radius: 48px;
  transform: translateX(0);
  transition:
    transform var(--tabs-dur) var(--tabs-ease),
    width     var(--tabs-dur) var(--tabs-ease);
  will-change: transform, width;
  z-index: 0;
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .t-tabs-pill, .t-tab { transition: none !important; }
}

:root {
  --modal-open-dur: 250ms;
  --modal-close-dur: 150ms;
  --modal-scale: 0.96;
  --modal-scale-close: 0.96;
  --modal-ease: cubic-bezier(0.22, 1, 0.36, 1);
}
.t-modal {
  transform-origin: center;
  transform: scale(var(--modal-scale));
  opacity: 0;
  pointer-events: none;
  transition:
    transform var(--modal-open-dur) var(--modal-ease),
    opacity   var(--modal-open-dur) var(--modal-ease);
  will-change: transform, opacity;
}
.t-modal.is-open {
  transform: scale(1);
  opacity: 1;
  pointer-events: auto;
}
.t-modal.is-closing {
  transform: scale(var(--modal-scale-close));
  opacity: 0;
  pointer-events: none;
  transition:
    transform var(--modal-close-dur) var(--modal-ease),
    opacity   var(--modal-close-dur) var(--modal-ease);
}
@media (prefers-reduced-motion: reduce) {
  .t-modal { transition: none !important; }
}

/* Keep this app's compact dimensions and scene-specific colors. */
:root {
  --scene-switch-dur: 500ms;
  --scene-drag-response: 300ms;
  --scene-switch-ease: cubic-bezier(0.32, 0.72, 0, 1);
  --scene-switch-reduced-dur: 120ms;
  --ui-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --control-feedback-dur: 120ms;
}
body {
  --tabs-bar-bg: var(--well);
  --tabs-pill-bg: var(--selected);
  --tabs-text-muted: var(--muted);
  --tabs-text-active: var(--scene-accent);
}
.scene-selector.t-tabs { position: absolute; display: flex; gap: 2px; border-radius: 999px; box-shadow: none; }
.mode-tabs.t-tabs { display: flex; gap: 2px; border-radius: 999px; }
.scene-overflow-wrap { z-index: 1; }
.scene-overflow.t-tab { height: 24px; padding: 0 10px; border-radius: 999px; }
.scene-selector > .t-tabs-pill { height: 24px; }
.mode-tabs > .t-tabs-pill { height: calc(var(--segment-height) - 8px); }
.scene-selector > .t-tabs-pill, .mode-tabs > .t-tabs-pill {
  border-radius: 999px;
  box-shadow: 0 1px 3px var(--shadow);
  opacity: 0;
}
.t-tabs[data-motion-ready] > .t-tabs-pill { opacity: 1; }
.t-tabs[data-motion-ready] .t-tab[aria-selected="true"],
.t-tabs[data-motion-ready] .scene-overflow.is-selected { background: transparent; box-shadow: none; }
.scene-overflow svg { transition: transform var(--dropdown-close-dur) var(--dropdown-ease); }
.scene-overflow[aria-expanded="true"] svg { transform: rotate(180deg); }
.key-map { max-height: min(520px, calc(100svh - 100px)); overflow-y: auto; overscroll-behavior: contain; }
.showcase-dialog { width: min(1040px, calc(100vw - 32px), calc((100dvh - 104px) * 16 / 9)); max-width: none; max-height: calc(100dvh - 32px); margin: auto; padding: 12px; border: 0; border-radius: 20px; background: var(--selected); color: var(--ink); }
.showcase-dialog::backdrop { background: transparent; transition: background-color var(--modal-close-dur) ease; }
.showcase-dialog.is-open::backdrop { background: rgb(12 18 17 / .6); }
.showcase-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 40px; margin-bottom: 8px; padding-left: 8px; font-size: 12px; font-weight: 600; }
.showcase-close { display: grid; place-items: center; flex: none; width: 40px; height: 40px; padding: 0; border: 0; border-radius: 999px; background: var(--well); color: var(--ink); }
.showcase-close svg { width: 18px; height: 18px; }
.showcase-frame { display: block; width: 100%; aspect-ratio: 16 / 9; border: 0; border-radius: 12px; background: #111; }
@media (prefers-reduced-motion: reduce) {
  .showcase-dialog::backdrop { transition: none; }
}

/* Small, direct feedback; no motion on continuously updating game meters. */
.icon-button, .zoom-controls button, .speed {
  transition: transform var(--control-feedback-dur) var(--ui-ease),
    background-color var(--control-feedback-dur) ease,
    border-color var(--control-feedback-dur) ease,
    color var(--control-feedback-dur) ease;
}
.icon-button:active:not(:disabled), .zoom-controls button:active:not(:disabled), .speed:active { transform: scale(.94); }
.scene-nav { transition: opacity var(--dropdown-close-dur) var(--ui-ease); }
.scene-nav img { transition: opacity var(--dropdown-close-dur) var(--ui-ease), transform var(--tabs-dur) var(--tabs-ease); }
.scene-nav:active img { transform: scale(.96); }
.scene-nav:focus-visible img { opacity: 1; }
.icon-button[aria-expanded="true"] { background: var(--hover); color: var(--scene-accent); }
@media (hover: hover) and (pointer: fine) {
  .scene-nav:hover img { transform: scale(1.025); }
  .scene-nav:active img { transform: scale(.96); }
}
@media (hover: none) {
  .t-tab:not([aria-selected="true"]):hover { color: var(--muted); }
  .scene-overflow.is-selected:hover { color: var(--scene-accent); }
}
@media (max-width: 540px) {
  .scene-overflow.t-tab, .scene-selector > .t-tabs-pill { height: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  .icon-button:active:not(:disabled), .zoom-controls button:active:not(:disabled), .speed:active,
  .scene-nav:hover img, .scene-nav:active img { transform: none; }
}