/* ============================================================
   transitions.dev — motion tokens + the snippets Owed uses
   (texts reveal, accordion, modal, success check, error shake,
   tabs sliding, toast). Snippets are pasted verbatim from the
   transitions-dev reference files. Every block ships a
   prefers-reduced-motion guard — keep them.
   ============================================================ */
:root {
  /* Durations */
  --duration-stagger: 40ms;
  --duration-micro: 80ms;
  --duration-quick: 150ms;
  --duration-fast: 250ms;
  --duration-medium: 350ms;
  --duration-slow: 400ms;
  --duration-very-slow: 500ms;
  /* Easings */
  --ease-smooth-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: ease-in-out;
  --ease-out: ease-out;
  --ease-linear: linear;
  --ease-bounce: cubic-bezier(0.34, 1.36, 0.64, 1);
  --ease-bounce-strong: cubic-bezier(0.34, 3.85, 0.64, 1);
  /* Distances */
  --distance-micro: 4px;
  --distance-small: 6px;
  --distance-base: 8px;
  --distance-medium: 12px;
  --distance-large: 30px;
  /* Scales */
  --scale-large: 0.96;
  --scale-medium: 0.97;
  --scale-small: 0.98;
  --scale-tiny: 0.99;
  /* Blur */
  --blur-small: 2px;
  --blur-medium: 3px;
  --blur-large: 8px;

  /* Texts reveal */
  --stagger-dur: 500ms;
  --stagger-distance: 12px;
  --stagger-stagger: 40ms;
  --stagger-blur: 3px;
  --stagger-ease: cubic-bezier(0.22, 1, 0.36, 1);
  /* Accordion expand */
  --acc-expand: 250ms;
  --acc-collapse: 250ms;
  --acc-chevron: 250ms;
  --acc-ease: cubic-bezier(0.22, 1, 0.36, 1);
  /* Modal open / close */
  --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);
  /* Success check */
  --check-opacity-dur: 500ms;
  --check-rotate-dur: 500ms;
  --check-rotate-from: 80deg;
  --check-bob-dur: 500ms;
  --check-y-amount: 40px;
  --check-blur-dur: 500ms;
  --check-blur-from: 10px;
  --check-path-dur: 500ms;
  --check-path-delay: 80ms;
  --check-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --check-ease-opacity: cubic-bezier(0.22, 1, 0.36, 1);
  --check-ease-rotate: cubic-bezier(0.22, 1, 0.36, 1);
  --check-ease-bob: cubic-bezier(0.34, 1.35, 0.64, 1);
  --check-ease-path: cubic-bezier(0.22, 1, 0.36, 1);
  /* Error state shake */
  --shake-distance: 6px;
  --shake-overshoot: 4px;
  --shake-dur-a: 80ms;
  --shake-dur-b: 60ms;
  --shake-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --revert-hold: 3000ms;
  --revert-dur: 280ms;
  /* Tabs sliding */
  --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: #f0f2f6;
  --tabs-pill-bg: #ffffff;
  /* Page side-by-side */
  --page-slide-dur: 320ms;
  --page-fade-dur: 260ms;
  --page-slide-distance: 28px;
  --page-blur: 3px;
  --page-stagger: 0ms;
  --page-exit-enabled: 1;
  --page-slide-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --page-fade-ease: cubic-bezier(0.22, 1, 0.36, 1);
  /* Toast open / close */
  --toast-open: 350ms;
  --toast-close: 250ms;
  --toast-distance: 16px;
  --toast-blur: 2px;
  --toast-scale: 0.97;
  --toast-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 18 · Texts reveal ---------- */
.t-stagger-line {
  display: block;
  opacity: 0;
  transform: translateY(var(--stagger-distance));
  filter: blur(var(--stagger-blur));
  transition:
    opacity   var(--stagger-dur) var(--stagger-ease),
    transform var(--stagger-dur) var(--stagger-ease),
    filter    var(--stagger-dur) var(--stagger-ease);
  will-change: transform, opacity, filter;
}
.t-stagger-line--2 { transition-delay: var(--stagger-stagger); }
.t-stagger-line--3 { transition-delay: calc(var(--stagger-stagger) * 2); }
.t-stagger-line--4 { transition-delay: calc(var(--stagger-stagger) * 3); }
.t-stagger-line--5 { transition-delay: calc(var(--stagger-stagger) * 4); }

.t-stagger.is-shown .t-stagger-line {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}
.t-stagger.is-hiding .t-stagger-line {
  opacity: 0;
  transform: translateY(0);
  filter: blur(0);
  transition:
    opacity 200ms ease,
    transform 0s linear,
    filter 0s linear;
  transition-delay: 0s;
}
@media (prefers-reduced-motion: reduce) {
  .t-stagger-line { transition: none !important; }
}

/* ---------- 21 · Accordion expand ---------- */
.t-acc-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--acc-collapse) var(--acc-ease);
}
.t-acc[data-open="true"] .t-acc-panel {
  grid-template-rows: 1fr;
  transition: grid-template-rows var(--acc-expand) var(--acc-ease);
}
.t-acc-panel-inner {
  overflow: hidden;
  opacity: 0;
  filter: blur(2px);
  transition:
    opacity var(--acc-collapse) var(--acc-ease),
    filter var(--acc-collapse) var(--acc-ease);
}
.t-acc[data-open="true"] .t-acc-panel-inner {
  opacity: 1;
  filter: blur(0);
  transition:
    opacity var(--acc-expand) var(--acc-ease),
    filter var(--acc-expand) var(--acc-ease);
}
.t-acc-chevron {
  display: inline-flex;
  transform: scaleY(1);
  transform-origin: center;
  transition: transform var(--acc-chevron) var(--acc-ease);
}
.t-acc-chevron path { vector-effect: non-scaling-stroke; }
.t-acc[data-open="true"] .t-acc-chevron {
  transform: scaleY(-1);
}
@media (prefers-reduced-motion: reduce) {
  .t-acc-panel, .t-acc-panel-inner, .t-acc-chevron {
    transition: none !important;
  }
}

/* ---------- 06 · Modal open / close ---------- */
.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; }
}

/* ---------- 10 · Success check ---------- */
.t-success-check {
  display: inline-block;
  transform-origin: center;
  opacity: 0;
  will-change: transform, opacity, filter;
}
.t-success-check svg { display: block; overflow: visible; }
/* 34 = ceil(getTotalLength()) of the M14 25 L21 32 L34 17 path + 1 */
.t-success-check svg path {
  stroke-dasharray: 34;
  stroke-dashoffset: 34;
}
.t-success-check[data-state="in"] {
  animation:
    t-check-fade   var(--check-opacity-dur) var(--check-ease-opacity) forwards,
    t-check-rotate var(--check-rotate-dur)  var(--check-ease-rotate)  forwards,
    t-check-blur   var(--check-blur-dur)    var(--check-ease-out)     forwards,
    t-check-bob    var(--check-bob-dur)     var(--check-ease-bob)     forwards;
}
.t-success-check[data-state="in"] svg path {
  animation: t-check-draw var(--check-path-dur) var(--check-ease-path) var(--check-path-delay, 0ms) forwards;
}
@keyframes t-check-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes t-check-rotate {
  from { transform: rotate(var(--check-rotate-from)); }
  to   { transform: rotate(0deg); }
}
@keyframes t-check-blur {
  from { filter: blur(var(--check-blur-from)); }
  to   { filter: blur(0); }
}
@keyframes t-check-bob {
  from { translate: 0 var(--check-y-amount); }
  to   { translate: 0 0; }
}
@keyframes t-check-draw { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .t-success-check { animation: none !important; opacity: 1; }
  .t-success-check svg path { animation: none !important; stroke-dashoffset: 0 !important; }
}

/* ---------- 12 · Error state shake ---------- */
.t-input {
  transition: border-color 150ms ease-out;
  will-change: transform;
}
.t-input.is-error {
  transition: border-color var(--revert-dur, 280ms) ease-out;
}
.t-error-msg {
  opacity: 0;
  visibility: hidden;
  transition:
    opacity    var(--revert-dur, 280ms) ease-out,
    visibility 0s linear var(--revert-dur, 280ms);
}
.t-input-wrap.is-error .t-error-msg {
  opacity: 1;
  visibility: visible;
  transition:
    opacity    var(--revert-dur, 280ms) ease-out,
    visibility 0s linear 0s;
}
.t-input.is-shaking {
  animation: t-input-shake calc(
      var(--shake-dur-a) * 2 + var(--shake-dur-b) * 2
    ) linear;
}
@keyframes t-input-shake {
  0%      { transform: translateX(0);                                 animation-timing-function: var(--shake-ease); }
  28.57%  { transform: translateX(var(--shake-distance));             animation-timing-function: var(--shake-ease); }
  57.14%  { transform: translateX(calc(var(--shake-distance) * -1)); animation-timing-function: var(--shake-ease); }
  78.57%  { transform: translateX(var(--shake-overshoot));            animation-timing-function: var(--shake-ease); }
  100%    { transform: translateX(0); }
}
@media (prefers-reduced-motion: reduce) {
  .t-input { animation: none !important; transform: none !important; }
}

/* ---------- 16 · Tabs sliding ---------- */
.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);
}
.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; }
}

/* ---------- 08 · Page side-by-side (generalised to N pages via data-pos) ---------- */
.t-page-slide { position: relative; }
.t-page-slide .t-page[data-pos="prev"] { --t-page-from-x: calc(var(--page-slide-distance) * -1); }
.t-page-slide .t-page[data-pos="next"] { --t-page-from-x: var(--page-slide-distance); }
.t-page-slide .t-page {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateX(calc(var(--t-page-from-x, 0px) * var(--page-exit-enabled)));
  filter: blur(calc(var(--page-blur) * var(--page-exit-enabled)));
  transition:
    opacity   var(--page-fade-dur)  var(--page-fade-ease),
    transform var(--page-slide-dur) var(--page-slide-ease),
    filter    var(--page-slide-dur) var(--page-slide-ease);
  will-change: opacity, transform, filter;
}
.t-page-slide .t-page[data-pos="current"] {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
  filter: blur(0);
  transition-delay: var(--page-stagger);
}
@media (prefers-reduced-motion: reduce) {
  .t-page-slide .t-page { transition: none !important; }
}

/* ---------- 22 · Toast open / close ---------- */
.t-toast {
  opacity: 0;
  transform: translateY(var(--toast-distance)) scale(var(--toast-scale));
  filter: blur(var(--toast-blur));
  will-change: transform, opacity, filter;
  transition:
    opacity var(--toast-close) var(--toast-ease),
    transform var(--toast-close) var(--toast-ease),
    filter var(--toast-close) var(--toast-ease);
}
.t-toast.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
  transition:
    opacity var(--toast-open) var(--toast-ease),
    transform var(--toast-open) var(--toast-ease),
    filter var(--toast-open) var(--toast-ease);
}
@media (prefers-reduced-motion: reduce) {
  .t-toast { transition: none !important; }
}
