/* The Experiment Studio. Colours come only from od-forms' --f-* tokens (vendor/od-forms-core.css),
   with [data-skin] = dusk (dark) or paper (light). Logical properties throughout, so RTL just works. */

:root { color-scheme: dark light; }
html, body { margin: 0; background: var(--f-bg); color: var(--f-ink); }
body { font: 16px/1.55 var(--f-sans); -webkit-font-smoothing: antialiased; }
*, *::before, *::after { box-sizing: border-box; }
.sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; inset-inline-start: 8px; top: -40px; background: var(--f-acc); color: #fff; padding: 6px 10px; border-radius: 8px; z-index: 9; }
.skip:focus { top: 8px; }
:focus-visible { outline: 2px solid var(--f-cy); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--f-serif); font-weight: 500; letter-spacing: -0.01em; margin: 0 0 0.4em; }
h1 { font-size: clamp(34px, 7vw, 58px); line-height: 1.04; }
h2 { font-size: clamp(24px, 4.4vw, 34px); line-height: 1.15; }
h3 { font-size: 20px; margin-top: 1.2em; }
p { margin: 0 0 0.8em; }
.mute { color: var(--f-mute); }
.small { font-size: 13px; }
.serif { font-family: var(--f-serif); font-size: 19px; }
.lead { font-size: 19px; color: var(--f-ink2); }
.kicker { font: 600 11px/1.3 var(--f-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--f-mute); margin: 0 0 6px; }
.note { font-size: 13px; color: var(--f-warm); }
.warn { color: var(--f-bad); min-height: 1em; }
.pre { white-space: pre-line; }

.studio { max-width: 760px; margin: 0 auto; padding: 0 16px 48px; min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 0; flex-wrap: wrap; }
.top-r { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.mark { display: inline-flex; align-items: center; gap: 8px; background: none; border: 0; color: var(--f-ink); font: 600 14px var(--f-sans); cursor: pointer; padding: 6px 0; }
.mark-dot { width: 12px; height: 12px; border-radius: 50%; background: radial-gradient(circle, var(--f-warm), var(--f-acc2)); box-shadow: 0 0 14px var(--f-glow); }
.lang { background: var(--f-bg2); color: var(--f-ink); border: 1px solid var(--f-line); border-radius: 10px; padding: 6px 8px; font: inherit; font-size: 14px; }
.link { background: none; border: 0; color: var(--f-ink2); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; font: inherit; font-size: 14px; padding: 6px 2px; }
.breath-btn { background: none; border: 1px solid var(--f-line); color: var(--f-ink2); border-radius: 99px; padding: 6px 12px; cursor: pointer; font: inherit; font-size: 14px; }
.foot { border-top: 1px solid var(--f-line); margin-top: 48px; padding-top: 16px; font-size: 13px; color: var(--f-ink2); }
.review { color: var(--f-warm); }

.btn { border: 1px solid var(--f-line); background: var(--f-bg2); color: var(--f-ink); border-radius: 14px; padding: 10px 16px; font: 500 15px var(--f-sans); cursor: pointer; min-height: 44px; transition: transform 0.15s, background 0.2s; }
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.pri { background: linear-gradient(135deg, var(--f-acc), var(--f-acc2)); color: #fff; border-color: transparent; }
.btn.big { padding: 14px 22px; font-size: 17px; }
.btn.sm { padding: 6px 10px; min-height: 36px; font-size: 13px; border-radius: 10px; }
.btn.ghost { background: none; }
.btn.danger { border-color: var(--f-bad); color: var(--f-bad); background: none; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 12px 0; }
.row.center { justify-content: center; }

/* threshold + breath: one quiet line in the middle of the page */
.gate, .breath { min-height: 62vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; gap: 12px; }
.gate-q { font-size: clamp(28px, 6vw, 44px); max-width: 18ch; }

/* home */
.hero { padding: 28px 0 8px; }
.example { margin: 24px 0; padding: 20px; border: 1px solid var(--f-line); border-radius: 20px; background: linear-gradient(160deg, color-mix(in srgb, var(--f-acc) 14%, var(--f-card)), var(--f-card)); }
.path { display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 4px 0 14px; list-style: none; counter-reset: s; }
.path li { font: 500 12px var(--f-mono); color: var(--f-ink2); padding: 4px 10px; border-radius: 99px; border: 1px solid var(--f-line); }
.path li:not(:last-child)::after { content: ' →'; color: var(--f-mute); }
[dir='rtl'] .path li:not(:last-child)::after { content: ' ←'; }
.progress { margin: 24px 0; }
.letters { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 8px; }
.ldot { width: 16px; height: 16px; border-radius: 50%; border: 1px solid var(--f-line); background: transparent; display: inline-block; }
.ldot.on { background: hsl(var(--h) 75% 62%); border-color: transparent; box-shadow: 0 0 10px hsl(var(--h) 80% 60% / 0.5); }
.prog-line { font-size: 14px; color: var(--f-ink2); }
.sep { color: var(--f-mute); }
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--f-line); margin-bottom: 12px; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; color: var(--f-mute); padding: 8px 10px; font: inherit; cursor: pointer; }
.tabs button[aria-selected='true'] { color: var(--f-ink); border-bottom-color: var(--f-acc); }
.minis { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.mini { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; align-items: center; padding: 12px; border: 1px solid var(--f-line); border-radius: 14px; background: var(--f-card); }
.mini .row { grid-column: 1 / -1; margin: 4px 0 0; }
.mini-dots { display: flex; gap: 3px; }
.mini-t { display: flex; flex-direction: column; min-width: 0; }
.mini-t span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* builder */
.rail { display: flex; flex-wrap: wrap; gap: 4px 2px; list-style: none; padding: 0; margin: 8px 0 20px; font: 500 12px var(--f-mono); }
.rail li { padding: 5px 9px; border-radius: 99px; color: var(--f-mute); }
.rail li.now { color: var(--f-ink); background: color-mix(in srgb, var(--f-acc) 22%, transparent); }
.rail li.done { color: var(--f-ink2); }
.rail-b { background: none; border: 0; color: inherit; font: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; padding: 0; }
.stage { animation: fkin 0.45s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
.stage.still, .stage.still .fk-in, .still .toast { animation: none; }
.nav { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 24px; position: sticky; bottom: 0; padding: 12px 0; background: linear-gradient(transparent, var(--f-bg) 30%); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--f-line); background: var(--f-bg2); color: var(--f-ink2); border-radius: 99px; padding: 9px 14px; font: 500 14px var(--f-sans); cursor: pointer; min-height: 40px; }
.chip.on { color: var(--f-ink); border-color: var(--f-acc); background: color-mix(in srgb, var(--f-acc) 18%, var(--f-bg2)); }
.chip.locked { opacity: 0.4; }
.field { display: flex; flex-direction: column; gap: 6px; margin: 16px 0; font-size: 14px; color: var(--f-ink2); }
.field input[type='text'] { background: var(--f-bg2); color: var(--f-ink); border: 1px solid var(--f-line); border-radius: 12px; padding: 12px; font: inherit; font-size: 16px; }
.field input[type='range'] { accent-color: var(--f-acc); }
.check { display: flex; gap: 10px; align-items: center; margin: 10px 0; font-size: 15px; }
.check input { width: 20px; height: 20px; accent-color: var(--f-acc); }
.sizes { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.size { text-align: start; padding: 16px; border-radius: 16px; border: 1px solid var(--f-line); background: var(--f-card); color: var(--f-ink2); font: inherit; cursor: pointer; }
.size.on { border-color: var(--f-acc); color: var(--f-ink); box-shadow: 0 0 0 1px var(--f-acc) inset; }
.kinds { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; margin: 12px 0; }
.kind { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 12px; border-radius: 14px; border: 1px solid var(--f-line); background: var(--f-card); color: var(--f-ink); font: inherit; font-size: 14px; cursor: pointer; text-align: start; min-height: 64px; }
.kind .glyph { font-size: 18px; color: var(--f-warm); }
.kind.on { border-color: var(--f-acc); }
.kind.locked { opacity: 0.38; cursor: not-allowed; }
.kind .lock { color: var(--f-mute); font-size: 11px; }
.picker { margin: 16px 0; padding: 16px; border-radius: 16px; background: var(--f-bg2); border: 1px solid var(--f-line); }
.items { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.item { width: 100%; display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--f-line); background: var(--f-card); color: var(--f-ink); font: inherit; cursor: pointer; text-align: start; }
.chosen { list-style: none; padding: 0; margin: 8px 0; display: grid; gap: 6px; }
.chosen li { display: flex; gap: 10px; align-items: center; padding: 8px 12px; border-radius: 12px; background: color-mix(in srgb, var(--f-acc) 12%, var(--f-card)); }
.chosen li span:nth-child(2) { flex: 1; }
.chordrow { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0; }
.chord { font: 600 26px var(--f-serif); padding: 16px 22px; border-radius: 18px; border: 1px solid var(--f-line); background: var(--f-card); color: var(--f-ink); cursor: pointer; min-width: 84px; }
.chord:active { background: color-mix(in srgb, var(--f-acc) 25%, var(--f-card)); }
.attr ul { margin: 0; padding-inline-start: 18px; }
.conf { color: var(--f-mute); font-size: 13px; }

/* feelings: a probability fan that collapses where you tap (card patterns P5 -> P6, P14) */
.fan { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; margin: 14px 0; }
.tile { position: relative; overflow: hidden; padding: 14px 12px 18px; border-radius: 14px; border: 1px solid var(--f-line); background: var(--f-card); color: var(--f-ink2); font: inherit; font-size: 15px; cursor: pointer; text-align: start; }
.tile-bar { position: absolute; inset-inline-start: 0; bottom: 0; height: 3px; width: var(--w, 0%); background: hsl(var(--h) 75% 60%); opacity: 0.7; }
.tile.guess { animation: shimmer 2.4s ease-in-out infinite; border-color: hsl(var(--h) 70% 60% / 0.6); }
.tile.on { color: var(--f-ink); border-color: transparent; background: color-mix(in srgb, hsl(var(--h) 70% 55%) 30%, var(--f-card)); box-shadow: 0 0 0 2px hsl(var(--h) 75% 60%) inset, 0 0 22px hsl(var(--h) 80% 60% / 0.35); }
@keyframes shimmer { 0%, 100% { box-shadow: 0 0 0 0 hsl(var(--h) 80% 60% / 0); } 50% { box-shadow: 0 0 18px 0 hsl(var(--h) 80% 60% / 0.35); } }

/* notes */
.roll { width: 100%; height: auto; display: block; margin: 10px 0; border-radius: 14px; background: color-mix(in srgb, var(--f-bg2) 70%, transparent); }
.roll .n { fill: hsl(var(--h) 70% 62%); opacity: 0.75; transition: opacity 0.2s; }
.roll .n.call { fill: var(--f-warm); opacity: 0.95; }
.roll .n.lit { opacity: 1; filter: drop-shadow(0 0 6px hsl(var(--h) 90% 65%)); }
.roll .hum { fill: var(--f-mute); opacity: 0.35; }
[dir='rtl'] .roll { transform: scaleX(-1); }
.fs { border: 0; padding: 0; margin: 14px 0; }
.fs legend { font-size: 14px; color: var(--f-ink2); margin-bottom: 6px; }

/* the result card (a cards@2 card at five depths: P1 Depth Unfold) */
.card { padding: 22px; border-radius: 22px; border: 1px solid var(--f-line); background: radial-gradient(120% 90% at 0% 0%, hsl(var(--h) 60% 50% / 0.22), transparent 60%), var(--f-card); margin: 8px 0 12px; }
.glance { font-size: clamp(30px, 7vw, 52px); margin: 4px 0; }
.depths { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 10px; }
.depths li { padding-top: 10px; border-top: 1px solid var(--f-line); }
.toast { padding: 12px 16px; border-radius: 14px; border: 1px solid color-mix(in srgb, var(--f-ok) 50%, transparent); background: color-mix(in srgb, var(--f-ok) 10%, var(--f-card)); margin-bottom: 12px; animation: fkin 0.5s both; }
.toast ul { margin: 0; padding-inline-start: 18px; }
.share, .echo { margin: 18px 0; padding: 16px; border-radius: 16px; border: 1px solid var(--f-line); background: var(--f-bg2); }
.share h3 { margin-top: 0; }
.echo { border-color: hsl(var(--h) 60% 60% / 0.5); }
.research { margin: 18px 0; font-size: 14px; }
.research summary, .notebook summary { cursor: pointer; color: var(--f-ink2); padding: 8px 0; }
.payload { max-height: 260px; overflow: auto; font: 12px/1.45 var(--f-mono); background: var(--f-bg2); padding: 12px; border-radius: 12px; white-space: pre-wrap; word-break: break-word; }
.notebook { margin-top: 22px; border-top: 1px dashed var(--f-line); padding-top: 6px; }
.nb { width: 100%; border-collapse: collapse; font-size: 13px; }
.nb th, .nb td { text-align: start; padding: 6px 8px; border-bottom: 1px solid var(--f-line); vertical-align: top; }
.nb th { font-weight: 500; color: var(--f-ink2); width: 45%; }
.nb-part { margin: 8px 0 14px; }

/* the "what this page knows" dialog */
.knows { max-width: min(560px, calc(100vw - 32px)); border: 1px solid var(--f-line); border-radius: 20px; background: var(--f-card); color: var(--f-ink); padding: 22px; }
.knows::backdrop { background: rgb(0 0 0 / 0.55); }
.noscript { padding: 48px 0; }

@media (prefers-reduced-motion: reduce) {
  .stage, .toast, .tile.guess { animation: none; }
  .btn { transition: none; }
}

/* rings of the experiment library (state/gift/experiments/progression) */
.rings { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 10px 0 4px; font: 500 12px var(--f-mono); }
.rings li { padding: 4px 10px; border-radius: 99px; border: 1px dashed var(--f-line); color: var(--f-mute); }
.rings li.open { border-style: solid; color: var(--f-ink); background: color-mix(in srgb, var(--f-acc) 16%, transparent); }

/* the template picker */
.picker-t { margin: 28px 0; }
.tgrid { list-style: none; padding: 0; margin: 12px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr)); gap: 10px; }
.tcard-b { width: 100%; height: 100%; display: flex; flex-direction: column; align-items: flex-start; gap: 6px; text-align: start; padding: 14px; border-radius: 16px; border: 1px solid var(--f-line); background: radial-gradient(120% 80% at 0% 0%, hsl(var(--h, 260) 60% 50% / 0.16), transparent 60%), var(--f-card); color: var(--f-ink); font: inherit; cursor: pointer; }
.tcard-b:hover:not(:disabled) { border-color: hsl(var(--h, 260) 60% 60% / 0.7); }
.tcard.flag { grid-column: 1 / -1; }
.tcard.flag .tcard-b { border-color: var(--f-acc); padding: 18px; }
.tcard.flag .tcard-t { font-size: 22px; }
.tcard.locked .tcard-b { opacity: 0.45; cursor: not-allowed; }
.tcard.own .tcard-b { border-style: dashed; }
.tcard-t { font-family: var(--f-serif); font-size: 18px; font-weight: 500; line-height: 1.2; }
.tcard-q { font-size: 13px; color: var(--f-ink2); }
.tcard-m { display: flex; align-items: center; gap: 8px; font: 500 11px var(--f-mono); color: var(--f-mute); }
.tcard .lock { color: var(--f-mute); }
.tcard.done .tcard-t::after { content: ' ✓'; color: var(--f-ok); }

/* template stages */
.tpl-head { margin-bottom: 4px; }
.why summary { cursor: pointer; color: var(--f-ink2); font-size: 14px; }
.opts .opt { display: inline-flex; flex-direction: column; align-items: flex-start; text-align: start; }
.opt-sub { font-size: 11px; color: var(--f-mute); }
.viz { margin: 14px 0; }
.ebars { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.ebars li { display: grid; grid-template-columns: 9em 1fr; align-items: center; gap: 10px; font-size: 14px; }
.ebar { display: block; height: 10px; width: var(--w); border-radius: 99px; background: hsl(var(--h) 70% 60%); }
.sliders { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr)); gap: 6px 14px; margin: 10px 0; }
.slider { display: grid; grid-template-columns: 8em 1fr; align-items: center; gap: 8px; font-size: 13px; }
.slider input { accent-color: hsl(var(--h) 70% 55%); }
.swatch { width: 36px; height: 36px; border-radius: 50%; border: 2px solid var(--f-line); cursor: pointer; }
.swatch.on { outline: 2px solid var(--f-acc); outline-offset: 2px; }
.btn.tap { min-width: 220px; min-height: 64px; }

/* the gift-og share card */
.ogcard { margin: 12px 0; }
.ogcard img { display: block; width: 100%; height: auto; border-radius: 14px; border: 1px solid var(--f-line); }
.consent .btn { min-width: 10em; }
/* English-only library text inside a right-to-left page keeps its own direction (punctuation stays put) */
[dir='rtl'] [lang='en'] { direction: ltr; unicode-bidi: isolate; text-align: end; }
/* letter-spacing breaks Arabic joining; kickers in RTL keep natural spacing */
[dir='rtl'] .kicker, [dir='rtl'] .rail, [dir='rtl'] .path li { letter-spacing: 0; text-transform: none; }

/* ===================== Round 3: the living field and the cinematic first run ===================== */
html, body { background: radial-gradient(120% 80% at 50% 30%, #1a1236 0%, #0b0918 55%, #05040b 100%) fixed; }
.field { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
#app, .skip, dialog { position: relative; z-index: 1; }
.studio { background: transparent; }
/* panels are glass over the light: translucent, no blur (cheap on phones) */
.card, .share, .echo, .example, .tcard-b, .mini, .picker, .size, .kind, .item, .tile, .chord, .viz, .toast {
  background-color: color-mix(in srgb, var(--f-card) 72%, transparent) !important;
}
.tcard-b { background-image: radial-gradient(120% 80% at 0% 0%, hsl(var(--h, 260) 60% 50% / 0.22), transparent 60%) !important; }

/* the opening */
body.is-opening .top .link, body.is-opening .top .breath-btn { opacity: 0.7; }
body.is-opening .foot .mute { display: none; }
.opening { min-height: calc(100svh - 150px); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 10px; padding: 8px 0 12px; }
.open-title { font-size: clamp(40px, 9vw, 96px); line-height: 1; letter-spacing: -0.02em; margin: 0 0 6px; text-shadow: 0 0 40px rgb(255 200 220 / 0.35); animation: rise 1.6s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
.open-tap { font: 600 11px/1.3 var(--f-mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--f-ink2); margin: 6px 0 0; animation: rise 1.6s 0.3s both; }
.words { list-style: none; padding: 0; margin: 4px 0 6px; display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 6px; max-width: 760px; }
.word { background: none; border: 0; color: var(--f-ink2); font-family: var(--f-serif); font-size: clamp(16px, 3.6vw, 26px); padding: 6px 9px; border-radius: 99px; cursor: pointer; animation: float 6s ease-in-out infinite, rise 1.2s both; animation-delay: calc(var(--i) * -0.37s), calc(0.4s + var(--i) * 0.04s); transition: color 0.3s, text-shadow 0.3s, background 0.3s; }
.word:hover, .word:focus-visible { color: #fff; text-shadow: 0 0 18px rgb(255 190 220 / 0.8); }
.word.on { color: #fff; background: rgb(255 255 255 / 0.08); text-shadow: 0 0 22px rgb(255 160 200 / 0.9); }
.heart-wrap { margin: clamp(8px, 4vh, 40px) 0 4px; animation: rise 1.4s 0.6s both; }
@property --p { syntax: '<number>'; inherits: false; initial-value: 0; }
.heart-btn { position: relative; width: clamp(112px, 26vw, 150px); aspect-ratio: 1; border-radius: 50%; border: 0; background: radial-gradient(circle at 50% 45%, rgb(255 120 160 / 0.32), rgb(255 80 120 / 0.06) 60%, transparent 70%); cursor: pointer; touch-action: none; -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
.heart-ring { position: absolute; inset: 0; border-radius: 50%; --p: 0; background: conic-gradient(from 0turn, #ffd2e1 calc(var(--p) * 1turn), rgb(255 255 255 / 0.12) 0); -webkit-mask: radial-gradient(circle, transparent 62%, #000 63%, #000 67%, transparent 68%); mask: radial-gradient(circle, transparent 62%, #000 63%, #000 67%, transparent 68%); transition: --p 0.25s ease-out; }
.heart-btn.holding .heart-ring { --p: 1; transition: --p 1.1s linear; }
.heart-core { position: absolute; inset: 0; display: grid; place-items: center; font-size: clamp(46px, 11vw, 64px); color: #ff8fb1; text-shadow: 0 0 30px rgb(255 120 160 / 0.9); animation: beat 0.909s ease-in-out infinite; }
.heart-btn.holding .heart-core { animation-duration: 0.65s; color: #ffd2e1; }
.open-q { font-family: var(--f-serif); font-size: clamp(18px, 3.2vw, 24px); margin: 6px 0 0; max-width: 30ch; }
.open-hint { color: var(--f-ink2); font-size: 14px; margin: 0; }
.skip-btn { margin-top: 4px; }
@keyframes beat { 0%, 100% { transform: scale(1); } 6% { transform: scale(1.16); } 14% { transform: scale(1.02); } 24% { transform: scale(1.11); } 40% { transform: scale(1); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
@keyframes rise { from { opacity: 0; transform: translateY(14px); filter: blur(6px); } to { opacity: 1; transform: none; filter: none; } }

/* stages breathe with the field */
.build .stage h2 { text-shadow: 0 0 28px rgb(180 160 255 / 0.25); }
.ebar { transition: width 0.9s cubic-bezier(0.2, 0.7, 0.2, 1); box-shadow: 0 0 14px hsl(var(--h) 80% 60% / 0.6); }
.chord { transition: transform 0.2s, box-shadow 0.3s; }
.chord:active { transform: scale(0.96); box-shadow: 0 0 24px rgb(200 180 255 / 0.5); }
.opt.on { box-shadow: 0 0 0 1px var(--f-acc), 0 0 22px color-mix(in srgb, var(--f-acc) 50%, transparent); }

/* the share-card reveal */
.card.reveal { animation: reveal 1.3s cubic-bezier(0.16, 0.9, 0.2, 1) both; }
.card.reveal .ogcard { position: relative; overflow: hidden; border-radius: 14px; animation: glow 2.4s 0.6s ease-out both; }
.card.reveal .ogcard::after { content: ''; position: absolute; inset: 0; background: linear-gradient(105deg, transparent 35%, rgb(255 255 255 / 0.55) 50%, transparent 65%); transform: translateX(-120%); animation: shine 1.6s 0.9s ease-out both; pointer-events: none; }
[dir='rtl'] .card.reveal .ogcard::after { animation-name: shine-rtl; }
.card .glance { background: linear-gradient(90deg, #fff, hsl(var(--h) 90% 80%), #fff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.still .card.reveal, .still .card.reveal .ogcard, .still .card.reveal .ogcard::after { animation: none; }
.still .card.reveal .ogcard::after { opacity: 0; }
@keyframes reveal { 0% { opacity: 0; transform: scale(0.86) translateY(30px); filter: blur(14px); } 60% { opacity: 1; filter: blur(0); } 100% { transform: none; } }
@keyframes glow { 0% { box-shadow: 0 0 0 0 hsl(var(--h) 90% 70% / 0); } 30% { box-shadow: 0 0 60px 8px hsl(var(--h) 90% 70% / 0.55); } 100% { box-shadow: 0 0 30px 0 hsl(var(--h) 90% 70% / 0.25); } }
@keyframes shine { to { transform: translateX(120%); } }
@keyframes shine-rtl { from { transform: translateX(120%); } to { transform: translateX(-120%); } }

/* one-tap remix */
.remix-one { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 4px 0 14px; }
.remix-btn { font-size: 18px; padding: 14px 26px; box-shadow: 0 0 30px color-mix(in srgb, var(--f-acc2) 55%, transparent); animation: pulse-glow 2.7s ease-in-out infinite; }
@keyframes pulse-glow { 0%, 100% { box-shadow: 0 0 18px color-mix(in srgb, var(--f-acc2) 40%, transparent); } 50% { box-shadow: 0 0 38px color-mix(in srgb, var(--f-acc2) 75%, transparent); } }

/* wide screens: the opening and the reveal get room */
@media (min-width: 1100px) {
  .studio { max-width: 980px; }
  .opening { min-height: calc(100vh - 170px); }
  .result .card { padding: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  .open-title, .open-tap, .word, .heart-wrap, .heart-core, .card.reveal, .card.reveal .ogcard, .card.reveal .ogcard::after, .remix-btn { animation: none !important; }
  .heart-btn.holding .heart-ring { transition: none; }
}

/* the opening's entrance plays once; a language tap re-renders without replaying it */
.opening.still .open-title, .opening.still .open-tap, .opening.still .heart-wrap { animation: none; }
.opening.still .word { animation: float 6s ease-in-out infinite; animation-delay: calc(var(--i) * -0.37s); }
.heart-wrap { margin: clamp(40px, 9vh, 90px) 0 clamp(30px, 6vh, 60px); }

/* discoveries: a compact row of chips under the card, not a wall */
.toast-chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.toast-chips li { font-size: 13px; padding: 5px 10px; border-radius: 99px; background: color-mix(in srgb, var(--f-ok) 14%, transparent); border: 1px solid color-mix(in srgb, var(--f-ok) 35%, transparent); }
.result .card { margin-top: 0; }

/* headings receive focus programmatically on each stage (for screen readers), without a box */
h1[tabindex='-1']:focus, h2[tabindex='-1']:focus { outline: none; }