/* DevDrop — "docking console" styles. Every value traces to a token below (see DESIGN.md).
   Motion tokens + t-* recipes: transitions.dev (Jakub Antalik), used under its license.
   Fonts: Unbounded + JetBrains Mono, SIL OFL 1.1, bundled for offline use. */

@font-face { font-family: "Unbounded"; src: url("/fonts/unbounded-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Unbounded"; src: url("/fonts/unbounded-700.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("/fonts/jetbrains-mono-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("/fonts/jetbrains-mono-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }

/* ============ Color, type, space tokens ============ */
:root {
  --void: #0B1226;      /* page */
  --panel: #111A33;     /* panels, feed rows */
  --raised: #18234A;    /* inputs, code blocks, thumbs */
  --line: #263257;      /* hairlines (decorative) */
  --edge: #5B6CA3;      /* control borders, ≥3:1 */
  --ink: #EAF0FF;
  --ink-2: #A6B2D4;
  --beam: #8FB0FF;      /* links, primary actions, focus */
  --signal: #FFC42E;    /* live / new / in progress */
  --on-accent: #0B1226; /* text on beam or signal */
  --danger: #FF8370;
  --qr-light: #FFFFFF;  /* QR quiet zone, never themed */
  --grid-dot: color-mix(in oklab, var(--line) 70%, transparent);
  --beam-soft: color-mix(in oklab, var(--beam) 35%, transparent);
  --signal-soft: color-mix(in oklab, var(--signal) 22%, var(--panel));
  --scrim: color-mix(in oklab, var(--void) 82%, transparent);

  --font-display: "Unbounded", ui-rounded, system-ui, sans-serif;
  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-data: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --fs-micro: 0.6875rem;
  --fs-meta: 0.8125rem;
  --fs-body: 0.9375rem;
  --fs-title: 1.0625rem;
  --fs-section: 1.125rem;
  --fs-hero: 1.875rem;

  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px; --s6: 32px; --s7: 48px;

  --r-panel: 14px;
  --r-control: 10px;
  --r-thumb: 8px;
  --r-pill: 999px;

  --glow-beam: 0 0 0 1px var(--beam-soft), 0 0 18px -4px var(--beam-soft);

  color-scheme: dark;
}

/* ============ Motion tokens (transitions.dev shared scale) ============ */
:root {
  --duration-micro: 80ms;
  --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);
  --ease-in-out: ease-in-out;
  --ease-out: ease-out;
  --ease-linear: linear;
  --distance-micro: 4px;
  --distance-small: 6px;
  --scale-large: 0.96;
  --scale-medium: 0.97;
  --blur-small: 2px;

  --toast-open: var(--duration-medium);
  --toast-close: var(--duration-fast);
  --toast-distance: 16px;
  --toast-blur: var(--blur-small);
  --toast-scale: var(--scale-medium);
  --toast-ease: var(--ease-smooth-out);

  --text-swap-dur: var(--duration-quick);
  --text-swap-translate-y: var(--distance-micro);
  --text-swap-blur: var(--blur-small);
  --text-swap-ease: var(--ease-in-out);

  --shimmer-dur: 2000ms;
  --shimmer-base: var(--ink-2);
  --shimmer-highlight: var(--ink);
  --shimmer-band: 400%;
  --shimmer-ease: var(--ease-linear);

  --shake-distance: var(--distance-small);
  --shake-overshoot: var(--distance-micro);
  --shake-dur-a: var(--duration-micro);
  --shake-dur-b: 60ms;
  --shake-ease: var(--ease-smooth-out);
  --revert-dur: 280ms;

  --reveal-dur: var(--duration-slow);
  --reveal-blur: var(--blur-small);
  --reveal-ease: var(--ease-in-out);

  --toggle-dur: var(--duration-medium);
  --toggle-travel: 16px;
  --toggle-ov1: 1px;
  --toggle-ov2: 0px;
  --toggle-track: var(--duration-quick);
  --toggle-ease: cubic-bezier(0.34, 1.35, 0.64, 1);

  --overlay-open: var(--duration-fast);
  --overlay-close: var(--duration-quick);

  --pulse-travel: 900ms;  /* beam pulse: device → this computer */
  --arrive-dur: calc(var(--duration-very-slow) * 2);
}

/* ============ Base ============ */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; background: var(--void); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font: 400 var(--fs-body)/1.5 var(--font-ui);
  background-color: var(--void);
  background-image: radial-gradient(var(--grid-dot) 1px, transparent 1.2px);
  background-size: 22px 22px;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

body:not(.is-host) .host-only { display: none !important; }
body.is-host .phone-only { display: none !important; }
body.no-room .room-only { display: none !important; }

h1, h2, p, ol { margin: 0; }
h2 { font: 600 var(--fs-meta)/1.3 var(--font-ui); color: var(--ink-2); margin-bottom: var(--s3); }
.mono { font-family: var(--font-data); font-size: var(--fs-meta); overflow-wrap: anywhere; }
small { display: block; color: var(--ink-2); font-size: var(--fs-meta); }

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

:focus-visible { outline: 2px solid var(--beam); outline-offset: 2px; }
textarea:focus-visible, select:focus-visible { outline-offset: 0; }

/* ============ Header ============ */
.bar {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s4);
  max-width: 1180px; margin: 0 auto; padding: var(--s4) var(--s5);
}
.brand { display: flex; align-items: center; gap: var(--s3); font: 700 var(--fs-title)/1 var(--font-display); letter-spacing: 0.01em; }
.brand-mark { width: 30px; height: 30px; }
.bm-beam { stroke: var(--beam); stroke-width: 2.5; }
.bm-a { fill: var(--beam); }
.bm-b { fill: var(--signal); }

.status {
  display: inline-flex; align-items: center; gap: var(--s2);
  padding: 6px var(--s3); border-radius: var(--r-pill);
  background: var(--panel); border: 1px solid var(--line);
  font-size: var(--fs-meta); font-weight: 600; white-space: nowrap;
}
.led { width: 8px; height: 8px; border-radius: var(--r-pill); background: var(--edge); flex: none; }
.status[data-state="live"] .led { background: var(--signal); box-shadow: 0 0 0 3px color-mix(in oklab, var(--signal) 25%, transparent), 0 0 10px var(--signal); }
.status[data-state="ended"] .led { background: var(--danger); }

/* ============ Layout ============ */
.layout {
  max-width: 1180px; margin: 0 auto; padding: var(--s2) var(--s5) var(--s7);
  display: grid; gap: var(--s5);
}
body.is-host .layout { grid-template-columns: 300px minmax(0, 1fr); align-items: start; }
.work { min-width: 0; display: flex; flex-direction: column; gap: var(--s4); }
.rail { display: flex; flex-direction: column; gap: var(--s4); }

@media (max-width: 899px) {
  body.is-host .layout { grid-template-columns: minmax(0, 1fr); }
  .layout { padding: var(--s2) var(--s4) var(--s7); }
  .bar { padding: var(--s3) var(--s4); }
}

.panel, .port, .linkmap, .composer {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
}
.panel { padding: var(--s4); display: flex; flex-direction: column; gap: var(--s3); align-items: flex-start; }
.panel h2 { margin-bottom: 0; }
.panel-note { color: var(--ink-2); font-size: var(--fs-meta); }
.path { color: var(--ink-2); }

/* ============ Docking port ============ */
.port { padding: var(--s4); display: flex; flex-direction: column; align-items: center; gap: var(--s3); }
.port-label { align-self: flex-start; font: 600 var(--fs-micro)/1 var(--font-display); color: var(--beam); letter-spacing: 0.08em; }
.reticle { position: relative; padding: var(--s3); }
.corner { position: absolute; width: 22px; height: 22px; border-color: var(--beam); border-style: solid; border-width: 0; }
.corner.tl { top: 0; left: 0; border-top-width: 2px; border-left-width: 2px; border-top-left-radius: 6px; }
.corner.tr { top: 0; right: 0; border-top-width: 2px; border-right-width: 2px; border-top-right-radius: 6px; }
.corner.bl { bottom: 0; left: 0; border-bottom-width: 2px; border-left-width: 2px; border-bottom-left-radius: 6px; }
.corner.br { bottom: 0; right: 0; border-bottom-width: 2px; border-right-width: 2px; border-bottom-right-radius: 6px; }
.qr-frame { background: var(--qr-light); border-radius: var(--r-control); padding: var(--s3); box-shadow: var(--glow-beam); }
.qr-frame img { display: block; width: 208px; height: 208px; max-width: 100%; }
.port-note { color: var(--ink-2); font-size: var(--fs-meta); text-align: center; }
.address {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s2);
  width: 100%; padding-top: var(--s3); border-top: 1px solid var(--line);
}
.address .mono { color: var(--ink); }
.port .small-link { align-self: flex-start; font-size: var(--fs-meta); }
.rail-note { color: var(--ink-2); font-size: var(--fs-meta); padding: 0 var(--s1); }
.field-row { display: flex; align-items: center; gap: var(--s2); width: 100%; font-size: var(--fs-meta); color: var(--ink-2); }
.field-row select { flex: 1; min-width: 0; }

/* ============ Link map (the memorable element) ============ */
.linkmap { padding: var(--s2); overflow: hidden; }
.map { display: block; width: 100%; height: 200px; }
.map .beam-path { fill: none; stroke: var(--beam); stroke-opacity: .45; stroke-width: 1.5; }
.map .beam-path.idle { stroke: var(--edge); stroke-dasharray: 3 6; stroke-opacity: .8; }
.map .beam-path.unreachable { stroke: var(--danger); stroke-dasharray: 3 6; stroke-opacity: .6; }
.map .node-ring.unreachable { stroke: var(--danger); }
.map .sublabel.warn { fill: var(--danger); }
.map .node-ring { fill: var(--raised); stroke: var(--beam); stroke-width: 1.5; }
.map .node-ring.ghost { stroke: var(--edge); stroke-dasharray: 3 4; }
.map .node-core { fill: var(--beam); }
.map .node-core.mac { fill: var(--signal); }
.map .mac-ring { fill: var(--raised); stroke: var(--signal); stroke-width: 1.5; }
.map .node-icon { fill: none; stroke: var(--ink); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.map .label { fill: var(--ink); font: 600 13px var(--font-ui); }
.map .sublabel { fill: var(--ink-2); font: 400 11px var(--font-data); }
.map .pulse { fill: var(--signal); filter: drop-shadow(0 0 6px var(--signal)); }

/* ============ Phone hero ============ */
.phone-hero { display: flex; flex-direction: column; gap: var(--s3); margin: var(--s2) 0 var(--s1); }
.hero { font: 700 var(--fs-hero)/1.12 var(--font-display); letter-spacing: -0.01em; overflow-wrap: anywhere; }
.mini-link { display: flex; align-items: center; gap: 0; width: 132px; }
.ml-node { width: 12px; height: 12px; border-radius: var(--r-pill); flex: none; }
.ml-phone { background: var(--beam); box-shadow: 0 0 10px var(--beam-soft); }
.ml-mac { background: var(--signal); box-shadow: 0 0 10px var(--signal); }
.ml-beam { position: relative; flex: 1; height: 2px; background: var(--beam-soft); overflow: visible; }
.ml-pulse { position: absolute; top: -3px; left: 0; width: 8px; height: 8px; border-radius: var(--r-pill); background: var(--signal); opacity: 0; }
.mini-link.is-active .ml-pulse { animation: ml-travel var(--pulse-travel) var(--ease-in-out) infinite; }
.mini-link.is-offline .ml-beam { background: var(--edge); }
.mini-link.is-offline .ml-mac { background: var(--edge); box-shadow: none; }
@keyframes ml-travel {
  0% { left: 0; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { left: calc(100% - 8px); opacity: 0; }
}

/* ============ Controls ============ */
.btn {
  font: 600 var(--fs-body)/1.2 var(--font-ui);
  border-radius: var(--r-control);
  padding: 10px var(--s4);
  border: 1px solid transparent;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s2);
  min-height: 40px;
  -webkit-tap-highlight-color: transparent;
  transition: transform var(--duration-micro) var(--ease-out), box-shadow var(--duration-quick) var(--ease-out);
}
.btn:active { transform: scale(var(--scale-medium)); }
.btn.primary { background: var(--beam); color: var(--on-accent); }
.btn.primary:hover { box-shadow: var(--glow-beam); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--edge); }
.btn.ghost:hover { border-color: var(--beam); }
.btn.small { min-height: 32px; padding: 6px var(--s3); font-size: var(--fs-meta); }
.btn[disabled] { opacity: .45; cursor: default; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--s2); }

.btn.big {
  min-height: 96px; width: 100%; white-space: normal; text-align: center;
  flex-direction: column; gap: var(--s2);
  font: 600 var(--fs-body)/1.2 var(--font-display);
  border-radius: var(--r-panel);
}
.btn.big svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.btn.ghost.big { background: var(--panel); border-color: var(--line); }

.link {
  background: none; border: 0; padding: 0; font: inherit; font-weight: 600;
  color: var(--beam); text-decoration: underline; text-underline-offset: 3px; cursor: pointer;
}

select, textarea {
  font: inherit; color: var(--ink); background: var(--raised);
  border: 1px solid var(--edge); border-radius: var(--r-control);
}
select { padding: 6px var(--s2); font-size: var(--fs-meta); }
textarea::placeholder { color: var(--ink-2); }

/* Toggle (transitions.dev 27-toggle) */
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: var(--s3); width: 100%; }
.switch-row strong { display: block; font-size: var(--fs-meta); font-weight: 600; }
.t-toggle {
  position: relative; flex: none;
  width: 40px; height: 24px; padding: 0; border-radius: var(--r-pill);
  border: 1px solid var(--edge); background: var(--raised); cursor: pointer;
  transition: background var(--toggle-track) var(--ease-out), border-color var(--toggle-track) var(--ease-out);
}
.t-toggle[data-on="true"] { background: var(--beam); border-color: var(--beam); }
.t-toggle-thumb {
  position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: var(--r-pill);
  background: var(--ink-2); translate: 0 0; will-change: translate;
}
.t-toggle[data-on="true"] .t-toggle-thumb { translate: var(--toggle-travel) 0; background: var(--on-accent); }
.t-toggle.is-init[data-on="true"] .t-toggle-thumb { animation: t-toggle-on var(--toggle-dur) var(--toggle-ease) both; }
.t-toggle.is-init[data-on="false"] .t-toggle-thumb { animation: t-toggle-off var(--toggle-dur) var(--toggle-ease) both; }
@keyframes t-toggle-on {
  0% { translate: 0 0; }
  55% { translate: calc(var(--toggle-travel) + var(--toggle-ov1)) 0; }
  80% { translate: calc(var(--toggle-travel) - var(--toggle-ov2)) 0; }
  100% { translate: var(--toggle-travel) 0; }
}
@keyframes t-toggle-off {
  0% { translate: var(--toggle-travel) 0; }
  55% { translate: calc(0px - var(--toggle-ov1)) 0; }
  80% { translate: var(--toggle-ov2) 0; }
  100% { translate: 0 0; }
}
.t-toggle[disabled] { opacity: .45; cursor: default; }

/* ============ Send ============ */
.send { display: flex; flex-direction: column; gap: var(--s3); }
.pickers { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s3); }

.composer { padding: var(--s3); display: flex; flex-direction: column; gap: var(--s3); }
.composer textarea {
  display: block; width: 100%; resize: vertical; min-height: 84px;
  font-family: var(--font-data); font-size: 16px; /* 16px stops iOS zooming on focus */
  padding: var(--s3);
}
.composer .t-input.is-error textarea { border-color: var(--danger); }
.composer-actions { display: flex; align-items: center; justify-content: flex-end; gap: var(--s2); }
.composer-actions .t-error-msg { margin-right: auto; min-width: 0; line-height: 1.3; color: var(--danger); font-size: var(--fs-meta); font-weight: 600; }
.composer-hint { color: var(--ink-2); font-size: var(--fs-meta); }

.me { color: var(--ink-2); font-size: var(--fs-meta); }
.me strong { color: var(--ink); }

/* ============ Feed ============ */
.feed-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s3); margin-top: var(--s3); }
.feed-head .link { font-size: var(--fs-meta); }
.feed-title { margin: 0; font: 700 var(--fs-section)/1.2 var(--font-display); color: var(--ink); }
.feed { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--s2); }

.empty { color: var(--ink-2); max-width: 52ch; }
.steps {
  list-style: none; margin: 0; padding: var(--s4) var(--s5);
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s4);
  counter-reset: step;
  border: 1px dashed var(--edge); border-radius: var(--r-panel);
}
.steps li { counter-increment: step; display: flex; flex-direction: column; gap: var(--s1); color: var(--ink-2); font-size: var(--fs-meta); }
.steps li::before { content: "0" counter(step); font: 700 var(--fs-title)/1 var(--font-display); color: var(--beam); margin-bottom: var(--s1); }
.steps strong { color: var(--ink); font-size: var(--fs-body); }
@media (max-width: 599px) { .steps { grid-template-columns: minmax(0, 1fr); } }

.item {
  position: relative;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  grid-template-areas: "thumb body actions";
  align-items: center;
  gap: var(--s3);
  padding: var(--s3);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
}
.item.is-text { align-items: start; }

.thumb {
  grid-area: thumb; position: relative;
  width: 48px; height: 48px; border-radius: var(--r-thumb);
  background: var(--raised);
  display: grid; place-items: center; overflow: hidden;
  color: var(--ink-2); text-decoration: none;
}
a.thumb { cursor: zoom-in; }
.thumb svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ext { font: 600 var(--fs-micro)/1 var(--font-data); color: var(--beam); letter-spacing: 0.02em; max-width: 44px; overflow: hidden; white-space: nowrap; }

.thumb-media {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block;
  opacity: 0; filter: blur(var(--reveal-blur));
  transition: opacity var(--reveal-dur) var(--reveal-ease), filter var(--reveal-dur) var(--reveal-ease);
}
.thumb-media.is-revealed { opacity: 1; filter: blur(0); }
.play-badge { position: absolute; z-index: 1; width: 18px; height: 18px; border-radius: var(--r-pill); background: var(--void); box-shadow: 0 0 0 1px var(--edge); }
.play-badge::after { content: ""; position: absolute; left: 7px; top: 5px; border-left: 6px solid var(--ink); border-top: 4px solid transparent; border-bottom: 4px solid transparent; }

.item-body { grid-area: body; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.item-name { font: 600 var(--fs-body)/1.35 var(--font-data); overflow-wrap: anywhere; }
.item-title { font: 600 var(--fs-title)/1.3 var(--font-ui); overflow-wrap: anywhere; }
.item-text {
  margin: 0; font: 400 var(--fs-meta)/1.55 var(--font-data);
  white-space: pre-wrap; overflow-wrap: anywhere;
  max-height: calc(1.55em * 12); overflow: auto;
  background: var(--raised); border-radius: var(--r-thumb); padding: var(--s2) var(--s3);
}
.item-meta { color: var(--ink-2); font-size: var(--fs-meta); }
.item-error { color: var(--danger); font-size: var(--fs-meta); }
.item-actions { grid-area: actions; display: flex; flex-wrap: wrap; gap: var(--s2); justify-content: flex-end; }
.tag {
  display: inline-flex; align-items: center; gap: 6px; width: fit-content;
  font-size: var(--fs-micro); font-weight: 600; color: var(--beam);
  padding: 2px var(--s2); border-radius: var(--r-pill); border: 1px solid var(--beam-soft);
}

.progress { height: 4px; border-radius: var(--r-pill); background: var(--raised); overflow: hidden; margin-top: var(--s1); }
.progress span {
  display: block; height: 100%; width: 0; background: var(--signal); box-shadow: 0 0 8px var(--signal);
  transition: width var(--duration-fast) var(--ease-smooth-out);
}

@media (max-width: 599px) {
  .item { grid-template-columns: 48px minmax(0, 1fr); grid-template-areas: "thumb body" "actions actions"; }
  .item-actions { justify-content: flex-start; }
}

/* Arrival flash */
.item.arrived { animation: arrive var(--arrive-dur) var(--ease-out); }
@keyframes arrive {
  0%, 40% { background: var(--signal-soft); border-color: var(--signal); }
  100% { background: var(--panel); border-color: var(--line); }
}

/* ============ Drop overlay ============ */
.drop-overlay {
  position: fixed; inset: 0; z-index: 10;
  display: grid; place-items: center;
  background: var(--scrim);
  border: 2px dashed var(--beam);
  opacity: 0; visibility: hidden;
  transition: opacity var(--overlay-close) var(--ease-smooth-out), visibility 0s linear var(--overlay-close);
}
.drop-overlay p {
  font: 700 var(--fs-section)/1.2 var(--font-display);
  background: var(--beam); color: var(--on-accent);
  padding: var(--s3) var(--s5); border-radius: var(--r-control);
  transform: scale(var(--scale-large));
  transition: transform var(--overlay-close) var(--ease-smooth-out);
}
.drop-overlay.on { opacity: 1; visibility: visible; transition: opacity var(--overlay-open) var(--ease-smooth-out), visibility 0s linear 0s; }
.drop-overlay.on p { transform: scale(1); transition-duration: var(--overlay-open); }

/* ============ Toast (transitions.dev 22-toast) ============ */
.toast {
  position: fixed; left: 0; right: 0; margin: 0 auto; width: max-content;
  bottom: calc(var(--s5) + env(safe-area-inset-bottom));
  max-width: min(92vw, 440px);
  background: var(--ink); color: var(--on-accent);
  padding: var(--s3) var(--s4); border-radius: var(--r-control);
  font-weight: 600; font-size: var(--fs-body);
  pointer-events: none; z-index: 20;
}
.toast.error { background: var(--danger); color: var(--on-accent); }
.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);
}

/* ============ Text swap (transitions.dev 04) ============ */
.t-text-swap {
  display: inline-block; transform: translateY(0); filter: blur(0); opacity: 1;
  transition: transform var(--text-swap-dur) var(--text-swap-ease), filter var(--text-swap-dur) var(--text-swap-ease), opacity var(--text-swap-dur) var(--text-swap-ease);
  will-change: transform, filter, opacity;
}
.t-text-swap.is-exit { transform: translateY(calc(var(--text-swap-translate-y) * -1)); filter: blur(var(--text-swap-blur)); opacity: 0; }
.t-text-swap.is-enter-start { transform: translateY(var(--text-swap-translate-y)); filter: blur(var(--text-swap-blur)); opacity: 0; transition: none; }

/* ============ Shimmer (transitions.dev 15) ============ */
.t-shimmer { position: relative; display: inline-block; color: var(--shimmer-base); }
.t-shimmer::before {
  content: attr(data-text); position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(90deg, transparent 0%, transparent 40%, var(--shimmer-highlight) 50%, transparent 60%, transparent 100%);
  background-size: var(--shimmer-band) 100%; background-repeat: no-repeat;
  -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent;
  animation: t-shimmer var(--shimmer-dur) var(--shimmer-ease) infinite;
}
@keyframes t-shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0% 0; } }

/* ============ Error shake (transitions.dev 12) ============ */
.t-input { transition: border-color var(--duration-quick) var(--ease-out); will-change: transform; }
.t-input.is-error { transition: border-color var(--revert-dur) var(--ease-out); }
.t-error-msg { opacity: 0; visibility: hidden; transition: opacity var(--revert-dur) var(--ease-out), visibility 0s linear var(--revert-dur); }
.t-input-wrap.is-error .t-error-msg { opacity: 1; visibility: visible; transition: opacity var(--revert-dur) var(--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); }
}

/* ============ Reduced motion: every recipe keeps its guard ============ */
@media (prefers-reduced-motion: reduce) {
  .t-toast, .t-text-swap, .thumb-media, .progress span, .drop-overlay, .drop-overlay p, .btn, .t-toggle { transition: none !important; }
  .t-shimmer::before, .t-toggle-thumb, .ml-pulse, .item.arrived { animation: none !important; }
  .t-input { animation: none !important; transform: none !important; }
  .btn:active { transform: none; }
}