/* ═══════════════════════════════════════════════════════════════════════════
   transitions.css — animações do site (porte do transitions.dev)
   Fonte dos snippets: https://github.com/Jakubantalik/transitions.dev
   (Jakub Antalik). Snippets CSS "copy-ready" adaptados ao tema escuro do
   radioterapia.ai: tokens semânticos em :root, classes t-* e guarda
   prefers-reduced-motion em TODO bloco. Sem handler inline (CSP): o
   orquestrador é public/js/tdev.js.
   ═══════════════════════════════════════════════════════════════════════════ */
:root {
  --duration-quick: 150ms;
  --duration-fast: 250ms;
  --duration-medium: 350ms;
  --duration-slow: 400ms;
  --duration-very-slow: 500ms;
  --ease-smooth-out: cubic-bezier(0.22, 1, 0.36, 1);

  --modal-open-dur: 250ms;
  --modal-close-dur: 150ms;
  --modal-scale: 0.96;
  --modal-ease: cubic-bezier(0.22, 1, 0.36, 1);

  --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);

  --morph-open-dur: 350ms;
  --morph-close-dur: 250ms;
  --morph-ease: cubic-bezier(0.34, 1.25, 0.64, 1);
  --morph-blur: 2px;

  --think-hold: 2400ms;
  --think-swap: 150ms;
  --think-gap: 50ms;
  --think-distance: 8px;
  --think-blur: 2px;
  --think-shimmer: 2000ms;
  --think-base: #5a7fa8;
  --think-highlight: #eef4ff;
  --think-ease: ease-in-out;

  --stream-gap: 45ms;
  --stream-fade: 350ms;
  --stream-blur: 1px;
  --stream-ease: cubic-bezier(0.22, 1, 0.36, 1);

  --matrix-cycle: 1200ms;
  --matrix-base: rgba(154, 180, 210, 0.22);
  --matrix-active: #0ea5e9;
  --matrix-ease: ease-in-out;

  --stagger-dur: 500ms;
  --stagger-distance: 12px;
  --stagger-stagger: 90ms;
  --stagger-blur: 3px;
  --stagger-ease: cubic-bezier(0.22, 1, 0.36, 1);

  --tabs-dur: 250ms;
  --tabs-ease: cubic-bezier(0.22, 1, 0.36, 1);

  --acc-expand: 250ms;
  --acc-collapse: 250ms;
  --acc-ease: cubic-bezier(0.22, 1, 0.36, 1);

  --reason-fade: 22px;
  --reason-ease: cubic-bezier(0.22, 1, 0.36, 1);

  --tilt-perspective: 1000px;
  --tilt-return: 1000ms;
  --tilt-return-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --tilt-follow: 400ms;
  --tilt-follow-ease: cubic-bezier(0.22, 1, 0.36, 1);

  --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);

  --shake-distance: 6px;
  --shake-overshoot: 4px;
}

/* ── Modal open / close ─────────────────────────────────────────────────
   Vale para TODO .modal-overlay do site: a abertura é keyframe (roda quando
   o overlay passa de display:none para flex, sem depender do JS que abre);
   o fechamento animado vem de .is-closing (closeModal em app.js). */
@keyframes t-modal-in {
  from { opacity: 0; transform: scale(var(--modal-scale)); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes t-overlay-in { from { opacity: 0; } to { opacity: 1; } }
.modal-overlay.active {
  animation: t-overlay-in var(--modal-open-dur) var(--modal-ease) both;
}
.modal-overlay.active > .modal-box,
.modal-overlay.active > .modal-shell,
.modal-overlay.active > .arec-card {
  animation: t-modal-in var(--modal-open-dur) var(--modal-ease) both;
  transform-origin: center;
}
.modal-overlay.active.is-closing {
  animation: none;
  opacity: 0;
  transition: opacity var(--modal-close-dur) var(--modal-ease);
  pointer-events: none;
}
.modal-overlay.active.is-closing > .modal-box,
.modal-overlay.active.is-closing > .modal-shell,
.modal-overlay.active.is-closing > .arec-card {
  animation: none;
  opacity: 0;
  transform: scale(var(--modal-scale));
  transition: transform var(--modal-close-dur) var(--modal-ease), opacity var(--modal-close-dur) var(--modal-ease);
}

/* ── Menus e mini popups (dropdown com origem) ──────────────────────────
   Abertura por keyframe: cobre qualquer popup que alterne display/classe
   .open sem JS extra. Fechamento animado quando o JS usa TDEV.closeMenu. */
@keyframes t-menu-in {
  from { opacity: 0; transform: scale(var(--dropdown-pre-scale)) translateY(-4px); filter: blur(var(--morph-blur)); }
  to   { opacity: 1; transform: none; filter: blur(0); }
}
@keyframes t-menu-in-up {
  from { opacity: 0; transform: scale(var(--dropdown-pre-scale)) translateY(4px); filter: blur(var(--morph-blur)); }
  to   { opacity: 1; transform: none; filter: blur(0); }
}
.t-dropdown-anim,
.lang-dd.open,
.pin-menu,
.hist-submenu,
#attach-menu,
#agent-attach-menu,
#pac-attach-menu,
.slash-picker.open,
.t-dropdown.is-open {
  animation: t-menu-in var(--dropdown-open-dur) var(--dropdown-ease) both;
  transform-origin: top left;
}
#attach-menu,
#agent-attach-menu,
#pac-attach-menu,
.slash-picker.open {
  animation-name: t-menu-in-up;
  transform-origin: bottom left;
}
.lang-dd.open { transform-origin: top right; }
.t-dropdown.is-closing {
  animation: none;
  opacity: 0;
  transform: scale(var(--dropdown-closing-scale));
  transition: transform var(--dropdown-close-dur) var(--dropdown-ease), opacity var(--dropdown-close-dur) var(--dropdown-ease);
  pointer-events: none;
}

/* ── Thinking states ────────────────────────────────────────────────────── */
.t-think { position: relative; display: inline-block; text-align: left; font-size: 13px; }
.t-think-sizer { display: block; visibility: hidden; white-space: nowrap; }
.t-think-text {
  position: absolute; top: 0; left: 0; right: 0; display: block;
  color: var(--think-base); white-space: nowrap;
  transform: translateY(0); filter: blur(0); opacity: 1;
  transition: transform var(--think-swap) var(--think-ease), filter var(--think-swap) var(--think-ease), opacity var(--think-swap) var(--think-ease);
  will-change: transform, filter, opacity;
}
.t-think-text::before {
  content: attr(data-text);
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(90deg, transparent 0%, transparent 40%, var(--think-highlight) 50%, transparent 60%, transparent 100%);
  background-size: 400% 100%; background-repeat: no-repeat;
  -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
  animation: t-think-shimmer var(--think-shimmer) linear infinite;
}
@keyframes t-think-shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0% 0; } }
.t-think-text.is-exit { transform: translateY(calc(var(--think-distance) * -1)); filter: blur(var(--think-blur)); opacity: 0; }
.t-think-text.is-enter-start { transition: none; transform: translateY(var(--think-distance)); filter: blur(var(--think-blur)); opacity: 0; }

/* ── Streaming text (palavra a palavra) ─────────────────────────────────── */
.t-stream-w {
  opacity: 0; filter: blur(var(--stream-blur));
  transition: opacity var(--stream-fade) var(--stream-ease), filter var(--stream-fade) var(--stream-ease);
}
.t-stream-w.is-in { opacity: 1; filter: blur(0); }
.t-stream-w.is-rest { transition: none; }

/* ── Matrix dot loader ──────────────────────────────────────────────────── */
.t-matrix { display: inline-grid; grid-template-columns: repeat(4, 3px); grid-auto-rows: 3px; gap: 3px; vertical-align: middle; }
.t-matrix i { display: block; background: var(--matrix-base); border-radius: 1px; animation: t-matrix-pulse var(--matrix-cycle) var(--matrix-ease) infinite; animation-delay: calc(var(--d, 0) * 1ms); }
.t-matrix i.is-gap { visibility: hidden; animation: none; }
@keyframes t-matrix-pulse { 0%, 45%, 100% { background-color: var(--matrix-base); } 15% { background-color: var(--matrix-active); } }
.t-matrix-line { display: inline-flex; align-items: center; gap: 10px; color: var(--t3); font-size: 12.5px; }

/* ── Texts reveal (cabeçalho das mini-páginas) ──────────────────────────
   Keyframe em vez de .is-shown: reinicia sozinho toda vez que a mini-página
   sai de display:none, sem depender de quem a abriu. */
@keyframes t-stagger-in {
  from { opacity: 0; transform: translateY(var(--stagger-distance)); filter: blur(var(--stagger-blur)); }
  to   { opacity: 1; transform: none; filter: blur(0); }
}
.t-stagger-line {
  display: block;
  animation: t-stagger-in var(--stagger-dur) var(--stagger-ease) both;
  will-change: transform, opacity, filter;
}
.t-stagger-line--2 { animation-delay: var(--stagger-stagger); }

/* ── Tabs sliding ───────────────────────────────────────────────────────── */
.t-tabs { position: relative; display: inline-flex; align-items: center; gap: 3px; padding: 3px; border-radius: 48px; background: rgba(255, 255, 255, 0.06); border: 1px solid var(--bd2, rgba(255,255,255,.07)); }
.t-tab {
  position: relative; appearance: none; border: 0; background: transparent; height: 32px; padding: 4px 16px;
  color: var(--t2, #9ab4d2); cursor: pointer; border-radius: 48px; z-index: 1; font: inherit; font-size: 13px; font-weight: 600;
  transition: color var(--tabs-dur) var(--tabs-ease);
}
.t-tab:not([aria-selected="true"]):hover, .t-tab[aria-selected="true"] { color: #fff; }
.t-tabs-pill {
  position: absolute; top: 3px; left: 0; height: 32px; width: 0; border-radius: 48px; z-index: 0; pointer-events: none;
  background: linear-gradient(135deg, rgba(14,165,233,.55), rgba(99,102,241,.55));
  transform: translateX(0);
  transition: transform var(--tabs-dur) var(--tabs-ease), width var(--tabs-dur) var(--tabs-ease);
  will-change: transform, width;
}

/* ── Accordion ──────────────────────────────────────────────────────────── */
.t-acc-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px; width: 100%;
  background: none; border: 0; color: inherit; font: inherit; cursor: pointer; text-align: left; padding: 0;
}
.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; min-height: 0; 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 > .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-expand) var(--acc-ease); flex-shrink: 0; }
.t-acc-chevron svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.t-acc-chevron path { vector-effect: non-scaling-stroke; }
.t-acc[data-open="true"] > .t-acc-head .t-acc-chevron { transform: scaleY(-1); }

/* ── Reasoning stream (transcrição ao vivo) ─────────────────────────────── */
.t-reason { position: relative; overflow: hidden; }
.t-reason-viewport {
  position: absolute; inset: 0; overflow: hidden;
  -webkit-mask-image: linear-gradient(transparent 0, black var(--reason-fade), black calc(100% - 4px), transparent 100%);
  mask-image: linear-gradient(transparent 0, black var(--reason-fade), black calc(100% - 4px), transparent 100%);
}
.t-reason-scroll { position: absolute; left: 0; right: 0; bottom: 0; transition: transform 500ms var(--reason-ease); will-change: transform; }
.t-reason-text { padding: 2px 4px 4px; }

/* ── Card tilt 3D ───────────────────────────────────────────────────────── */
.t-tilt { touch-action: pan-y; }
.t-tilt-card {
  position: relative;
  transform: perspective(var(--tilt-perspective)) rotateX(var(--tilt-rx, 0deg)) rotateY(var(--tilt-ry, 0deg));
  transform-style: preserve-3d;
  transition: transform var(--tilt-return) var(--tilt-return-ease);
  will-change: transform;
}
.t-tilt-card.is-tilting { transition: transform var(--tilt-follow) var(--tilt-follow-ease); }
.t-tilt-glare {
  position: absolute; inset: -6%; pointer-events: none; opacity: 0; mix-blend-mode: screen; border-radius: 50%;
  background: radial-gradient(circle 46% at var(--tilt-gx, 50%) var(--tilt-gy, 50%), rgba(125, 211, 252, .34), rgba(99, 102, 241, .10) 55%, rgba(99, 102, 241, 0) 80%);
  transition: opacity 300ms var(--tilt-follow-ease);
}
.t-tilt.is-hover .t-tilt-glare { opacity: 1; }

/* ── Toast ──────────────────────────────────────────────────────────────── */
@keyframes t-toast-in {
  from { opacity: 0; transform: translateY(var(--toast-distance)) scale(var(--toast-scale)); filter: blur(var(--toast-blur)); }
  to   { opacity: 1; transform: none; filter: blur(0); }
}
.t-toast-in { animation: t-toast-in var(--toast-open) var(--toast-ease) both; }

/* ── Error state shake ──────────────────────────────────────────────────── */
@keyframes t-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(calc(var(--shake-distance) * -1)); }
  45% { transform: translateX(var(--shake-distance)); }
  70% { transform: translateX(calc(var(--shake-overshoot) * -1)); }
  88% { transform: translateX(calc(var(--shake-overshoot) * 0.5)); }
}
.t-shake { animation: t-shake 280ms var(--ease-smooth-out) both; }

@media (prefers-reduced-motion: reduce) {
  .modal-overlay.active, .modal-overlay.active > .modal-box, .modal-overlay.active > .modal-shell, .modal-overlay.active > .arec-card,
  .t-dropdown-anim, .lang-dd.open, .pin-menu, .hist-submenu, #attach-menu, #agent-attach-menu, #pac-attach-menu,
  .slash-picker.open, .t-dropdown.is-open, .t-toast-in, .t-shake, .t-stagger-line { animation: none !important; }
  .t-think-text { transition: none !important; transform: none !important; filter: none !important; }
  .t-think-text::before { display: none !important; }
  .t-stream-w { transition: none !important; filter: none !important; opacity: 1 !important; }
  .t-matrix i { animation: none !important; }
  .t-tabs-pill, .t-tab, .t-acc-panel, .t-acc-panel-inner, .t-acc-chevron { transition: none !important; }
  .t-reason-scroll { transition: none !important; }
  .t-tilt-card { transform: none !important; transition: none !important; }
}

/* ── Chat: "pensando" (Thinking states), streaming text e Referências (acordeão) ── */
.typing-atom .t-think { font-size: 13px; align-self: center; }
.typing-atom .t-think-text { color: var(--t3); }

/* Streaming text: o cursor piscante do balão fica de fora enquanto as palavras resolvem */
.msg-body .t-stream-w { display: inline; }

.refs-acc {
  margin-top: 10px;
  border: 1px solid var(--bd2);
  border-radius: 12px;
  background: rgba(255,255,255,.025);
  overflow: hidden;
}
.refs-head { padding: 9px 12px; color: var(--t2); font-size: 12.5px; font-weight: 600; }
.refs-head:hover { color: var(--text); background: rgba(255,255,255,.03); }
.refs-title { display: inline-flex; align-items: center; gap: 7px; }
.refs-title .refs-ico { flex: none; color: var(--sky); opacity: .9; }
.fc-ico .fc-svg { display: block; }
.refs-count {
  display: inline-block; min-width: 18px; padding: 0 6px; border-radius: 99px;
  background: rgba(14,165,233,.14); color: #7dd3fc; font-size: 11px; line-height: 18px; text-align: center;
}
.refs-badge { font-size: 11px; font-weight: 600; }
.refs-badge--ok { color: #34d399; }
.refs-badge--warn { color: #fbbf24; }
.refs-acc .t-acc-panel-inner { padding: 0 12px; }
.refs-list { margin: 0; padding: 2px 0 10px 18px; display: flex; flex-direction: column; gap: 10px; }
.refs-list > li { font-size: 12.5px; line-height: 1.5; color: var(--t2); }
.refs-cite { display: block; color: var(--text); }
.refs-links { display: inline-flex; flex-wrap: wrap; gap: 4px 12px; margin-top: 2px; }
.refs-links a { color: var(--sky); font-size: 12px; text-decoration: none; }
.refs-links a:hover { text-decoration: underline; }
.refs-st { display: block; font-size: 11.5px; margin-top: 2px; }
.refs-st--ok { color: #34d399; }
.refs-st--warn { color: #fbbf24; }
.refs-st--bad { color: #f87171; }
.refs-st--muted { color: var(--t3); }

/* ── Toast (transitions.dev · Toast open/close) — o #saved-toast já vem centralizado por transform inline ── */
@keyframes t-toast-pop {
  from { opacity: 0; transform: translateX(-50%) translateY(calc(var(--toast-distance) * -1)) scale(var(--toast-scale)); filter: blur(var(--toast-blur)); }
  to   { opacity: 1; transform: translateX(-50%); filter: blur(0); }
}
#saved-toast.show { animation: t-toast-pop var(--toast-open) var(--toast-ease) both; }
@media (prefers-reduced-motion: reduce) { #saved-toast.show { animation: none !important; } }

/* ── Spinner → check (botão "Iniciar gravação", briefing 28/09/2026) ───────
   O "Spinner to check morph" do transitions.dev é receita PRO (código fechado).
   Aqui: anel girando enquanto o ping do áudio roda; no sucesso o anel encolhe
   com blur e o check entra com o snippet GRATUITO "Success check" (mesmo
   autor, cli/free/success-check.md) — fade + rotate + blur + Y-bob + desenho
   do traço, mesmos tempos e curvas. Na falha, um X desenhado.
   Estados (data-state): loading → done | fail. */
:root {
  --check-opacity-dur: 500ms;
  --check-rotate-dur: 500ms;
  --check-rotate-from: 80deg;
  --check-bob-dur: 500ms;
  --check-y-amount: 12px;
  --check-blur-dur: 500ms;
  --check-blur-from: 6px;
  --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);
  --spin-dur: 800ms;
  --spin-out-dur: 250ms;
}
.t-spin-check { position: relative; display: inline-block; width: 1.15em; height: 1.15em; vertical-align: -0.2em; flex-shrink: 0; }
.t-spin-check svg { display: block; width: 100%; height: 100%; overflow: visible; }
.t-spin-check .t-spin-ring {
  stroke-dasharray: 42 57;          /* arco de ~3/4 num círculo r=9 (≈56.5) */
  transform-origin: 12px 12px;
  animation: t-spin-rot var(--spin-dur) linear infinite;
  transition: opacity var(--spin-out-dur) var(--check-ease-out), transform var(--spin-out-dur) var(--check-ease-out), filter var(--spin-out-dur) var(--check-ease-out);
}
.t-spin-check .t-spin-mark { opacity: 0; stroke-dasharray: 20; stroke-dashoffset: 20; }
.t-spin-check .t-spin-mark-wrap { transform-origin: 12px 12px; opacity: 0; }
@keyframes t-spin-rot { to { transform: rotate(360deg); } }

.t-spin-check[data-state="done"] .t-spin-ring,
.t-spin-check[data-state="fail"] .t-spin-ring { animation: none; opacity: 0; transform: scale(.6); filter: blur(2px); }
.t-spin-check[data-state="done"] .t-spin-mark-wrap--ok,
.t-spin-check[data-state="fail"] .t-spin-mark-wrap--fail {
  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-spin-check[data-state="done"] .t-spin-mark-wrap--ok .t-spin-mark,
.t-spin-check[data-state="fail"] .t-spin-mark-wrap--fail .t-spin-mark {
  opacity: 1;
  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-spin-check .t-spin-ring { animation: none !important; transition: none !important; }
  .t-spin-check[data-state] .t-spin-mark-wrap { animation: none !important; }
  .t-spin-check[data-state="done"] .t-spin-mark-wrap--ok,
  .t-spin-check[data-state="fail"] .t-spin-mark-wrap--fail { opacity: 1; }
  .t-spin-check[data-state] .t-spin-mark { animation: none !important; stroke-dashoffset: 0 !important; }
}