/* transliterationlm UI: M3 Expressive. Flat tonal surfaces, outlines, springy shape motion.
   No shadows, no gradients, no emoji. Sections: tokens, base, shell, controls, overlays, views. */

/* ---------- tokens ---------- */
:root {
  --font-ui: "Figtree", "Noto Sans Devanagari", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-dev: "Noto Sans Devanagari", "Mukta", "Nirmala UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --emph: cubic-bezier(.2, 0, 0, 1);
  --emph-out: cubic-bezier(.05, .7, .1, 1);
  --spring: cubic-bezier(.34, 1.56, .64, 1);
  --fs: 26px; --nav-h: 80px; --rail-w: 96px; --top-h: 64px;

  --bg: #f6faf8; --s1: #eff5f2; --s2: #e9f0ed; --s3: #e3ebe7; --s4: #dce5e1;
  --on: #171d1b; --on-var: #3f4946; --outline: #6f7976; --line: #bec9c5;
  --pri: #006b5e; --on-pri: #ffffff; --pri-c: #b9efe3; --on-pri-c: #00201b;
  --tert: #8a5100; --tert-c: #ffddb3; --on-tert-c: #2b1700;
  --ok: #1b6b3a; --ok-c: #b7f1c8; --bad: #ba1a1a; --bad-c: #ffdad6; --on-bad-c: #410002;
  --scrim: rgb(10 20 17 / .42);
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #0e1513; --s1: #151d1b; --s2: #1a2321; --s3: #212b28; --s4: #293431;
  --on: #dee4e1; --on-var: #bec9c5; --outline: #899390; --line: #3f4946;
  --pri: #82d5c5; --on-pri: #00382f; --pri-c: #005046; --on-pri-c: #9ef2e1;
  --tert: #ffb95c; --tert-c: #5e3a00; --on-tert-c: #ffddb3;
  --ok: #8bdba1; --ok-c: #0d3f20; --bad: #ffb4ab; --bad-c: #7f1d18; --on-bad-c: #ffdad6;
  --scrim: rgb(0 0 0 / .56);
  color-scheme: dark;
}

/* ---------- base ---------- */
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
html, body { margin: 0; background: var(--bg); color: var(--on); font: 400 15px/1.5 var(--font-ui); transition: background-color .35s var(--emph), color .35s var(--emph); }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; padding: 0; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--pri); outline-offset: 2px; }
textarea:focus-visible, input:focus-visible { outline: 0; }
::selection { background: var(--pri-c); color: var(--on-pri-c); }
.ic { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.grow { flex: 1; min-width: 0; }
kbd { font: 500 12px/1 var(--font-mono); padding: 4px 6px; border-radius: 8px; border: 1px solid var(--line); background: var(--s2); color: var(--on-var); white-space: nowrap; }

/* ---------- shell ---------- */
.app { display: grid; grid-template-columns: var(--rail-w) minmax(0, 1fr); min-height: 100dvh; }
.rail { position: sticky; top: 0; height: 100dvh; display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 20px 0; border-right: 1px solid var(--line); z-index: 30; }
.brand { width: 52px; height: 52px; display: grid; place-items: center; margin-bottom: 20px; background: var(--pri); color: var(--on-pri); font: 700 28px/1 var(--font-dev); border-radius: 18px; transition: border-radius .5s var(--spring), transform .5s var(--spring); }
.brand:hover { border-radius: 50%; transform: rotate(-8deg); }
.nav-i { display: flex; flex-direction: column; align-items: center; gap: 4px; width: 100%; color: var(--on-var); font-size: 12px; font-weight: 600; letter-spacing: .02em; }
.nav-ic { position: relative; width: 56px; height: 32px; display: grid; place-items: center; }
.nav-ic .pill { position: absolute; inset: 0; border-radius: 16px; background: var(--pri-c); opacity: 0; transform: scaleX(.4); transition: transform .45s var(--spring), opacity .2s, border-radius .3s; }
.nav-ic .ic { position: relative; transition: color .2s, transform .45s var(--spring); }
.nav-i:hover .nav-ic .pill { opacity: .5; transform: scaleX(1); }
.nav-i:active .nav-ic .pill { border-radius: 10px; }
.nav-i[aria-current="page"] { color: var(--on); }
.nav-i[aria-current="page"] .nav-ic .pill { opacity: 1; transform: scaleX(1); }
.nav-i[aria-current="page"] .nav-ic .ic { color: var(--on-pri-c); transform: scale(1.06); }
.rail-end { margin-top: auto; display: flex; flex-direction: column; gap: 4px; }

.main { min-width: 0; display: flex; flex-direction: column; }
.top { position: sticky; top: 0; z-index: 25; display: flex; align-items: center; gap: 8px; height: var(--top-h); padding: 0 24px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.word { font-weight: 700; font-size: 18px; letter-spacing: -.01em; margin-right: 4px; }
.stage { width: 100%; max-width: 1120px; margin: 0 auto; padding: 8px 24px 40px; flex: 1; }

.status { display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 12px; border-radius: 16px; background: var(--s3); color: var(--on-var); font-size: 13px; font-weight: 600; overflow: hidden; max-width: 320px; transition: max-width .5s var(--emph), opacity .4s, padding .4s, background-color .3s, margin .4s; white-space: nowrap; }
.status .spin { width: 16px; height: 16px; fill: none; stroke: var(--pri); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 38 20; animation: spin 1s linear infinite; flex: none; }
.status[data-state="ready"] { max-width: 0; padding: 0; opacity: 0; pointer-events: none; margin-left: -8px; }
.status[data-state="error"] { background: var(--bad-c); color: var(--on-bad-c); }
.status[data-state="error"] .spin { animation: none; stroke: currentColor; stroke-dasharray: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* views */
.view { display: none; }
.view.on { display: block; animation: view-in .5s var(--emph-out) backwards; }
@keyframes view-in { from { opacity: 0; transform: translateY(16px) scale(.99); } to { opacity: 1; transform: none; } }

/* ---------- controls ---------- */
.btn, .chip-btn { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 40px; padding: 0 20px; border-radius: 20px; background: var(--s3); color: var(--on); font-weight: 600; font-size: 14px; white-space: nowrap; transition: border-radius .35s var(--spring), transform .35s var(--spring), background-color .2s, color .2s; user-select: none; }
.btn .ic { width: 20px; height: 20px; margin-left: -4px; }
.btn::before, .icon-btn::before, .chip-btn::before, .mi::before, .cand::before, .nav-i::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: currentColor; opacity: 0; transition: opacity .15s; pointer-events: none; }
.btn:hover::before, .icon-btn:hover::before, .chip-btn:hover::before, .mi:hover::before, .cand:hover::before { opacity: .08; }
.btn:active::before, .icon-btn:active::before, .chip-btn:active::before, .mi:active::before { opacity: .14; }
.btn:active, .chip-btn:active { border-radius: 12px; transform: scale(.97); }
.nav-i::before { display: none; }
.btn.filled { background: var(--pri); color: var(--on-pri); }
.btn.tonal { background: var(--pri-c); color: var(--on-pri-c); }
.btn.text { background: transparent; color: var(--pri); padding: 0 12px; }
.btn.outline { background: transparent; border: 1px solid var(--outline); }
.btn:disabled { opacity: .4; pointer-events: none; }
.chip-btn { height: 40px; padding: 0 14px; gap: 8px; background: transparent; border: 1px solid var(--line); border-radius: 14px; font-weight: 600; }
.chip-btn .ic { width: 20px; height: 20px; }
.chip-btn .chev { width: 18px; height: 18px; transition: transform .35s var(--spring); }
.chip-btn[aria-expanded="true"] { background: var(--s3); }
.chip-btn[aria-expanded="true"] .chev { transform: rotate(180deg); }
.chip-btn kbd { background: var(--s3); border-color: transparent; }

.icon-btn { position: relative; width: 40px; height: 40px; display: inline-grid; place-items: center; border-radius: 20px; color: var(--on-var); transition: border-radius .35s var(--spring), transform .35s var(--spring), color .2s, background-color .2s; flex: none; }
.icon-btn:hover { color: var(--on); }
.icon-btn:active { border-radius: 12px; transform: scale(.92); }
.icon-btn .ic { width: 22px; height: 22px; }
.icon-btn.flip .ic { animation: flip .5s var(--spring); }
@keyframes flip { from { transform: rotate(-90deg) scale(.5); opacity: 0; } to { transform: none; opacity: 1; } }
.aa { font: 700 14px/1 var(--font-ui); } .aa.lg { font-size: 20px; }

/* custom tooltips (hover devices only) */
@media (hover: hover) {
  [data-tip] { position: relative; }
  [data-tip]::after { content: attr(data-tip); position: absolute; top: calc(100% + 8px); left: 50%; translate: -50% 4px; padding: 6px 10px; border-radius: 10px; background: var(--on); color: var(--bg); font: 600 12px/1.2 var(--font-ui); white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity .15s, translate .2s var(--emph-out); z-index: 90; }
  [data-tip]:hover::after { opacity: 1; translate: -50% 0; transition-delay: .5s; }
  .tip-r[data-tip]::after { top: 50%; left: calc(100% + 8px); translate: -4px -50%; }
  .tip-r[data-tip]:hover::after { translate: 0 -50%; }
  .cands [data-tip]::after, .menu [data-tip]::after { display: none; }
}

/* segmented control with sliding thumb */
.seg { --n: 2; --i: 0; position: relative; display: inline-grid; grid-template-columns: repeat(var(--n), 1fr); padding: 4px; gap: 0; border-radius: 22px; background: var(--s3); isolation: isolate; }
.seg .thumb { position: absolute; z-index: -1; top: 4px; bottom: 4px; left: 4px; width: calc((100% - 8px) / var(--n)); border-radius: 18px; background: var(--pri-c); translate: calc(var(--i) * 100%) 0; transition: translate .5s var(--spring); }
.seg button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 36px; padding: 0 18px; border-radius: 18px; color: var(--on-var); font-weight: 600; font-size: 14px; white-space: nowrap; transition: color .25s; }
.seg button .ic { width: 18px; height: 18px; }
.seg button[aria-checked="true"] { color: var(--on-pri-c); }
.seg.compact button { padding: 0 16px; min-width: 48px; font-family: var(--font-dev); font-size: 16px; }

/* switch */
.sw-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; min-height: 56px; padding: 0 4px 0 8px; border-radius: 16px; text-align: left; font-weight: 600; }
.sw-row:hover { background: var(--s2); }
.sw { position: relative; flex: none; width: 52px; height: 32px; border-radius: 16px; background: var(--s4); border: 2px solid var(--outline); transition: background-color .25s, border-color .25s; }
.sw-t { position: absolute; top: 50%; left: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--outline); translate: 0 -50%; transition: left .4s var(--spring), width .3s var(--spring), height .3s var(--spring), background-color .25s; }
.sw-row:active .sw-t { width: 24px; height: 24px; left: 4px; }
.sw-row[aria-checked="true"] .sw { background: var(--pri); border-color: var(--pri); }
.sw-row[aria-checked="true"] .sw-t { width: 24px; height: 24px; left: 22px; background: var(--on-pri); }
.sw-row[aria-checked="true"]:active .sw-t { width: 28px; height: 28px; left: 18px; }

.card { background: var(--s1); border: 1px solid var(--line); border-radius: 28px; }
.bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 4px 0 16px; }
.stat { font: 500 12px var(--font-mono); color: var(--on-var); }

/* ---------- overlays ---------- */
#layer { position: relative; z-index: 100; }
.menu { position: fixed; z-index: 120; min-width: 200px; max-width: min(360px, calc(100vw - 16px)); max-height: min(420px, 60vh); overflow-y: auto; padding: 8px; background: var(--s3); border: 1px solid var(--line); border-radius: 20px; animation: menu-in .3s var(--spring) both; outline: 0; scrollbar-width: thin; }
@keyframes menu-in { from { opacity: 0; transform: scale(.85); } to { opacity: 1; transform: none; } }
.menu.out { animation: menu-out .15s var(--emph) both; }
@keyframes menu-out { to { opacity: 0; transform: scale(.92); } }
.mi { position: relative; display: flex; align-items: center; gap: 12px; width: 100%; min-height: 44px; padding: 0 12px 0 16px; border-radius: 14px; text-align: left; font-weight: 500; overflow: hidden; }
.mi .ml { flex: 1; }
.mi .ml.dev { font-family: var(--font-dev); font-size: 20px; }
.mi .tk { width: 18px; height: 18px; opacity: 0; scale: .4; transition: opacity .2s, scale .35s var(--spring); }
.mi.on { background: var(--pri-c); color: var(--on-pri-c); }
.mi.on .tk { opacity: 1; scale: 1; }
.mi:focus-visible { outline-offset: -2px; }
.msep { height: 1px; margin: 6px 8px; background: var(--line); }

.scrim { position: fixed; inset: 0; z-index: 110; background: var(--scrim); opacity: 0; transition: opacity .3s var(--emph); }
.scrim.in { opacity: 1; }
.sheet { position: fixed; z-index: 115; left: 50%; top: 50%; width: min(520px, calc(100vw - 32px)); max-height: min(720px, calc(100dvh - 48px)); display: flex; flex-direction: column; background: var(--s1); border: 1px solid var(--line); border-radius: 32px; opacity: 0; translate: -50% calc(-50% + 24px); scale: .94; transition: opacity .25s var(--emph), translate .5s var(--spring), scale .5s var(--spring); outline: 0; }
.sheet.in { opacity: 1; translate: -50% -50%; scale: 1; }
.sheet-h { display: flex; align-items: center; justify-content: space-between; padding: 20px 16px 8px 28px; }
.sheet-h h2 { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: -.01em; }
.sheet-b { padding: 8px 20px 24px; overflow-y: auto; scrollbar-width: thin; }
.sheet.palette { top: 14vh; translate: -50% 16px; width: min(600px, calc(100vw - 24px)); max-height: 70dvh; }
.sheet.palette.in { translate: -50% 0; }

.toast { position: fixed; z-index: 130; left: 50%; bottom: 28px; display: flex; align-items: center; gap: 8px; min-height: 52px; padding: 0 8px 0 20px; border-radius: 18px; background: var(--on); color: var(--bg); font-weight: 600; translate: -50% 24px; opacity: 0; transition: opacity .25s, translate .5s var(--spring); }
.toast.in { translate: -50% 0; opacity: 1; }
.toast .btn.text { color: var(--tert-c); }
[data-theme="dark"] .toast .btn.text { color: var(--tert); }
[data-theme="dark"] .toast .btn.text { color: #8a5100; }

.field-input { width: 100%; height: 56px; padding: 0 20px; border-radius: 18px; border: 1px solid var(--outline); background: transparent; font: 500 16px var(--font-ui); transition: border-color .2s, background-color .2s; }
.field-input:focus { border-color: var(--pri); background: var(--s2); outline: 2px solid var(--pri); outline-offset: -2px; }
.field-input.dev { font-family: var(--font-dev); font-size: 18px; }
.field-input.mono { font-family: var(--font-mono); font-size: 15px; }
.stack { display: grid; gap: 12px; }
.row-end { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }

.palette-in { display: flex; align-items: center; gap: 12px; padding: 12px 20px; border-bottom: 1px solid var(--line); }
.palette-in input { flex: 1; height: 44px; border: 0; background: transparent; font: 500 17px var(--font-ui); outline: 0; }
.palette-list { padding: 8px; overflow-y: auto; scrollbar-width: thin; }
.pi { position: relative; display: flex; align-items: center; gap: 14px; width: 100%; min-height: 48px; padding: 0 14px; border-radius: 16px; text-align: left; font-weight: 600; overflow: hidden; }
.pi .ic { width: 20px; height: 20px; color: var(--on-var); }
.pi .grow { }
.pi[aria-selected="true"] { background: var(--pri-c); color: var(--on-pri-c); }
.pi[aria-selected="true"] .ic { color: inherit; }
.pi[aria-selected="true"] kbd { background: transparent; border-color: currentColor; color: inherit; }
.palette-empty { padding: 28px; text-align: center; color: var(--on-var); }

.krow { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 48px; padding: 0 8px; border-bottom: 1px solid var(--line); }
.krow:last-child { border-bottom: 0; }
.keys { display: flex; gap: 6px; align-items: center; }

.dict-row { display: flex; align-items: center; gap: 12px; min-height: 56px; padding: 0 4px 0 12px; border-radius: 16px; }
.dict-row:hover { background: var(--s2); }
.dict-row .r { font: 500 14px var(--font-mono); color: var(--on-var); min-width: 96px; }
.dict-row .d { flex: 1; font: 500 22px var(--font-dev); }
.empty { display: grid; place-items: center; gap: 12px; padding: 40px 0; color: var(--on-var); font-weight: 600; }
.empty .ic { width: 48px; height: 48px; stroke-width: 1.5; }

/* ---------- write ---------- */
.editor { position: relative; }
.tools { display: flex; align-items: center; gap: 4px; padding: 12px 16px 4px 16px; }
.field { display: grid; padding: 8px 28px 16px; }
.field > * { grid-area: 1 / 1; margin: 0; padding: 0; border: 0; font: 400 var(--fs)/1.75 var(--font-dev); letter-spacing: 0; white-space: pre-wrap; overflow-wrap: break-word; word-break: normal; min-width: 0; width: 100%; }
.mirror { color: transparent; pointer-events: none; user-select: none; }
.mirror mark { color: transparent; background: var(--pri-c); border-radius: 6px; }
#ime { align-self: start; min-height: min(52vh, 440px); background: transparent; resize: none; overflow: hidden; caret-color: var(--pri); outline: 0; color: var(--on); }
#ime::placeholder { color: var(--on-var); opacity: .45; }
.foot { display: flex; gap: 12px; padding: 4px 28px 16px; font: 500 12px var(--font-mono); color: var(--on-var); min-height: 32px; }

.cands { position: absolute; left: 0; top: 0; z-index: 20; display: flex; align-items: center; gap: 4px; padding: 6px; max-width: min(620px, calc(100% - 24px)); background: var(--s4); border: 1px solid var(--outline); border-radius: 24px; opacity: 0; pointer-events: none; scale: .9; transform-origin: top left; transition: opacity .15s, scale .35s var(--spring), transform .22s var(--emph); }
.cands.show { opacity: 1; pointer-events: auto; scale: 1; }
.compose { padding: 0 10px 0 12px; font: 500 13px var(--font-mono); color: var(--on-var); white-space: nowrap; }
.cand { position: relative; display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 16px 0 12px; border-radius: 18px; font: 500 22px/1 var(--font-dev); color: var(--on); white-space: nowrap; overflow: hidden; transition: background-color .15s, color .15s, border-radius .3s var(--spring); }
.cand .n { font: 500 11px var(--font-mono); color: var(--on-var); min-width: 8px; }
.cand.sel { background: var(--pri-c); color: var(--on-pri-c); border-radius: 14px; }
.cand.sel .n { color: inherit; }
.cand.rom { font: 500 15px var(--font-mono); }
.cands.fresh .cand { animation: chip-in .4s var(--spring) both; animation-delay: calc(var(--k, 0) * 28ms); }
@keyframes chip-in { from { opacity: 0; transform: translateY(8px) scale(.8); } to { opacity: 1; transform: none; } }
.cands.docked { position: fixed; left: 0; right: 0; bottom: var(--kb, var(--nav-h)); top: auto; max-width: none; border-width: 1px 0 0; border-radius: 24px 24px 0 0; overflow-x: auto; scrollbar-width: none; scale: 1; translate: 0 100%; transform: none !important; transition: translate .4s var(--spring), opacity .15s; }
.cands.docked.show { translate: 0 0; }
.cands.docked::-webkit-scrollbar { display: none; }
.cands.docked .cand { flex: none; }

/* ---------- convert ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pane { display: flex; flex-direction: column; min-height: min(62vh, 540px); overflow: hidden; }
.pane.out-pane { background: var(--s2); }
.pane textarea { flex: 1; width: 100%; padding: 24px 28px 8px; background: transparent; border: 0; resize: none; outline: 0; font: 400 var(--fs)/1.75 var(--font-dev); caret-color: var(--pri); }
.pane textarea::placeholder { color: var(--on-var); opacity: .45; }
.out { flex: 1; padding: 24px 28px 8px; font: 400 var(--fs)/1.9 var(--font-dev); white-space: pre-wrap; overflow-wrap: break-word; }
.out:empty::before { content: attr(data-ph); color: var(--on-var); opacity: .35; }
.pane-tools { display: flex; align-items: center; gap: 8px; padding: 8px 16px 16px; }
.w { border-radius: 8px; cursor: pointer; transition: background-color .2s; }
.w:hover { background: var(--pri-c); }
.w.low { text-decoration: underline wavy var(--tert); text-decoration-thickness: 1.5px; text-underline-offset: 7px; }
.w.flash { animation: flash .7s var(--emph-out); }
@keyframes flash { from { background: var(--pri-c); } }

/* ---------- check ---------- */
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.kpi { padding: 20px 24px; border-radius: 28px; background: var(--s3); transition: border-radius .5s var(--spring); }
.kpi:hover { border-radius: 40px 16px 40px 16px; }
.kpi:nth-child(1) { background: var(--pri-c); color: var(--on-pri-c); }
.kpi:nth-child(2) { background: var(--tert-c); color: var(--on-tert-c); }
.kpi b { display: block; font: 700 clamp(32px, 6vw, 52px)/1.05 var(--font-ui); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.kpi span { font-weight: 600; font-size: 13px; opacity: .8; }
.meter { display: flex; height: 12px; margin: 16px 0; border-radius: 6px; overflow: hidden; background: var(--s3); gap: 3px; }
.meter span { height: 100%; width: 0; border-radius: 6px; transition: width .6s var(--emph-out); }
.m-ok { background: var(--ok); } .m-bad { background: var(--bad); }
.cases { display: grid; gap: 8px; }
.case { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; gap: 4px 16px; align-items: center; padding: 14px 20px 14px 14px; border-radius: 24px; background: var(--s1); border: 1px solid var(--line); animation: row-in .5s var(--emph-out) both; transition: border-radius .4s var(--spring), background-color .2s; }
.case:hover { background: var(--s2); border-radius: 32px 16px 32px 16px; }
@keyframes row-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.case .st { grid-row: span 2; width: 40px; height: 40px; border-radius: 14px; display: grid; place-items: center; background: var(--s3); color: var(--on-var); }
.case .st .ic { width: 20px; height: 20px; }
.case.pass .st { background: var(--ok-c); color: var(--ok); border-radius: 50%; }
.case.fail .st { background: var(--bad-c); color: var(--on-bad-c); }
.case .rm { font: 500 13px var(--font-mono); color: var(--on-var); overflow-wrap: anywhere; }
.case .ou { font: 500 22px/1.5 var(--font-dev); overflow-wrap: anywhere; }
.case .ex { font: 400 16px var(--font-dev); color: var(--on-var); }
.case .ex b { font-weight: 600; color: var(--ok); }
.case .ou .bad { background: var(--bad-c); color: var(--on-bad-c); border-radius: 6px; padding: 0 3px; }
.case .ms { grid-row: span 2; font: 500 12px var(--font-mono); color: var(--on-var); display: flex; align-items: center; gap: 4px; }
.case.pending .ou { opacity: .35; }

/* ---------- adaptive ---------- */
@media (max-width: 839px) {
  .app { display: block; padding-bottom: calc(var(--nav-h) + env(safe-area-inset-bottom)); }
  .rail { position: fixed; inset: auto 0 0 0; height: calc(var(--nav-h) + env(safe-area-inset-bottom)); width: 100%; flex-direction: row; justify-content: space-around; align-items: flex-start; gap: 0; padding: 12px 8px env(safe-area-inset-bottom); border-right: 0; border-top: 1px solid var(--line); background: var(--s2); }
  .brand, .rail-end { display: none; }
  .nav-i { width: auto; flex: 1; }
  .top { padding: 0 12px 0 16px; }
  .stage { padding: 4px 12px 24px; }
  #cmd-kbd { display: none; }
  #cmd-btn { width: 40px; padding: 0; border: 0; }
  .split { grid-template-columns: 1fr; }
  .pane { min-height: 260px; }
  .field { padding: 8px 18px 12px; }
  .foot { padding: 4px 18px 12px; }
  #ime { min-height: 44vh; }
  .kpis { gap: 8px; }
  .kpi { padding: 14px 16px; border-radius: 22px; }
  .sheet { top: auto; bottom: 0; left: 0; width: 100%; max-height: 88dvh; border-radius: 32px 32px 0 0; translate: 0 100%; scale: 1; border-width: 1px 0 0; }
  .sheet.in { translate: 0 0; }
  .sheet.palette { top: 0; bottom: auto; border-radius: 0 0 32px 32px; max-height: 80dvh; translate: 0 -100%; border-width: 0 0 1px; width: 100%; }
  .sheet.palette.in { translate: 0 0; }
  .toast { bottom: calc(var(--nav-h) + 16px); width: max-content; max-width: calc(100vw - 24px); }
  .case { grid-template-columns: 36px minmax(0, 1fr); }
  .case .ms { grid-column: 2; grid-row: auto; }
  .word { font-size: 16px; }
}
@media (max-width: 480px) {
  .word { display: none; }
  .tools { padding: 8px 8px 0 12px; }
  .btn { padding: 0 16px; }
  .seg button { padding: 0 12px; }
}
/* ---------- M3E additions ---------- */
.brand { width: 52px; height: 52px; padding: 0; background: none; border-radius: 0; margin-bottom: 20px; object-fit: contain; transition: transform .7s var(--spring); user-select: none; }
.brand:hover { border-radius: 0; transform: rotate(36deg) scale(1.06); }
.brand:active { transform: rotate(72deg) scale(.92); }
.mload { display: inline-grid; place-items: center; width: 20px; height: 20px; color: var(--pri); flex: none; }
.mload .morph { width: 20px; height: 20px; }
.status[data-state="error"] .mload { color: currentColor; }
.status[data-state="error"] .mload::before { content: "!"; font-weight: 800; }

.card { border-radius: 32px; transition: border-color .25s var(--emph); }
.editor:focus-within { border-color: var(--pri); }

/* connected button group */
.grp { display: inline-flex; gap: 2px; flex: none; }
.grp > .icon-btn { width: 44px; height: 40px; border-radius: 8px; background: var(--s3); }
.grp > .icon-btn:first-child { border-radius: 20px 8px 8px 20px; }
.grp > .icon-btn:last-child { border-radius: 8px 20px 20px 8px; }
.grp > .icon-btn:only-child { border-radius: 20px; }
.grp > .icon-btn:active { border-radius: 20px; transform: scale(.94); }
.icon-btn.tg[aria-pressed="true"] { background: var(--pri); color: var(--on-pri); border-radius: 20px !important; }
.tools { gap: 10px; overflow-x: auto; scrollbar-width: none; padding: 14px 16px 6px; }
.tools::-webkit-scrollbar { display: none; }
.tools > .icon-btn { background: var(--s3); border-radius: 20px; }
.tools > .icon-btn:hover { border-radius: 14px; }
.btn.sm { height: 36px; padding: 0 16px; font-size: 13px; }
.btn.wide { width: 100%; margin-bottom: 12px; height: 52px; border-radius: 26px; }

.foot { align-items: center; gap: 10px; padding: 4px 16px 16px 28px; min-height: 56px; flex-wrap: nowrap; }
.foot .count { height: 36px; padding: 0 14px; margin-left: -14px; border-radius: 18px; font: 500 12px var(--font-mono); color: var(--on-var); transition: background-color .2s, border-radius .35s var(--spring); }
.foot .count:hover { background: var(--s3); border-radius: 12px; }
#ime-stat { opacity: .7; }
.foot .btn { height: 44px; }

/* find bar */
.findbar { display: grid; gap: 8px; margin: 4px 16px 0; padding: 10px; border-radius: 24px; background: var(--s3); transform-origin: top; animation: fb-in .4s var(--spring) both; }
.findbar.out { animation: fb-out .2s var(--emph) both; }
@keyframes fb-in { from { opacity: 0; transform: translateY(-8px) scale(.96); } }
@keyframes fb-out { to { opacity: 0; transform: translateY(-8px) scale(.96); } }
.fb-row { display: flex; align-items: center; gap: 8px; }
.fb-in { flex: 1; min-width: 0; display: flex; align-items: center; gap: 10px; height: 44px; padding: 0 14px; border-radius: 22px; background: var(--bg); border: 1px solid transparent; transition: border-color .2s, border-radius .35s var(--spring); }
.fb-in:focus-within { border-color: var(--pri); border-radius: 16px; }
.fb-in .ic { width: 20px; height: 20px; color: var(--on-var); }
.fb-in input { flex: 1; min-width: 0; height: 100%; border: 0; background: transparent; outline: 0; font: 500 16px var(--font-dev); }
.fb-n { font: 500 12px var(--font-mono); color: var(--on-var); }
.findbar.none .fb-n { color: var(--bad); }
.findbar .grp > .icon-btn { background: var(--bg); }
.findbar > .fb-row > .icon-btn { background: transparent; }

.mirror mark.fm { background: var(--tert-c); border-radius: 6px; }
.mirror mark.fc { background: var(--tert); border-radius: 6px; }
.mirror mark.tg { background: var(--pri-c); border-radius: 6px; }
.hit { visibility: hidden; }

/* context menu */
.menu.ctx { width: 296px; max-width: min(320px, calc(100vw - 16px)); max-height: min(560px, calc(100dvh - 16px)); padding: 8px; border-radius: 28px; background: var(--s2); overflow-x: hidden; }
.ctx-body.swap { animation: swap-in .35s var(--emph-out) both; }
@keyframes swap-in { from { opacity: 0; transform: translateX(14px); } }
.ctx-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 10px 14px 8px; }
.ch-w { font: 600 26px/1.2 var(--font-dev); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ch-w.sm { font-size: 17px; font-family: var(--font-ui); }
.ch-r { font: 500 12px var(--font-mono); color: var(--on-var); white-space: nowrap; }
.cx-wrap { padding: 2px 6px 6px; }
.cx-row { display: flex; flex-wrap: wrap; gap: 6px; }
.cx { position: relative; display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 16px; border-radius: 20px; background: var(--s4); color: var(--on); font: 500 20px/1 var(--font-dev); overflow: hidden; transition: border-radius .35s var(--spring), background-color .2s, transform .35s var(--spring); animation: chip-in .45s var(--spring) both; animation-delay: calc(var(--k, 0) * 30ms); }
.cx::before { content: ""; position: absolute; inset: 0; background: currentColor; opacity: 0; transition: opacity .15s; }
.cx:hover::before { opacity: .08; } .cx:hover { border-radius: 12px; }
.cx:active { transform: scale(.94); border-radius: 10px; }
.cx.on { background: var(--pri); color: var(--on-pri); border-radius: 14px; }
.cx.rom { font: 500 14px var(--font-mono); background: transparent; border: 1px solid var(--line); }
.cx i { font: 500 11px var(--font-mono); font-style: normal; opacity: .7; }
.cx.sk { width: 72px; background: var(--s4); animation: sk 1s ease-in-out infinite; animation-delay: calc(var(--k) * 120ms); }
@keyframes sk { 50% { opacity: .35; } }
.mgroup { padding: 8px 14px 4px; font: 600 11px var(--font-ui); letter-spacing: .08em; text-transform: uppercase; color: var(--on-var); }
.menu.ctx .mi { min-height: 44px; border-radius: 16px; font-size: 14px; font-weight: 600; transition: border-radius .35s var(--spring); }
.menu.ctx .mi:hover:not(:disabled) { border-radius: 10px; }
.menu.ctx .mi .mi-ic { width: 20px; height: 20px; color: var(--on-var); }
.menu.ctx .mi .keys kbd { background: transparent; border: 0; padding: 0; opacity: .6; font-size: 11px; }
.menu.ctx .mi .go { width: 18px; height: 18px; rotate: -90deg; color: var(--on-var); }
.menu.ctx .mi .goback { rotate: 90deg; }
.menu.ctx .mi.danger, .menu.ctx .mi.danger .mi-ic { color: var(--bad); }
.menu.ctx .mi:disabled { opacity: .38; pointer-events: none; }
.menu.ctx .mi.back { font-weight: 700; }
.menu.ctx.sheetlike { left: 0; right: 0; top: auto; bottom: 0; width: 100%; max-width: none; max-height: 80dvh; border-radius: 32px 32px 0 0; border-width: 1px 0 0; padding: 12px 12px calc(12px + env(safe-area-inset-bottom)); animation: sheet-up .45s var(--emph-out) both; transform-origin: bottom; }
@keyframes sheet-up { from { transform: translateY(100%); } }
.menu.ctx.sheetlike.out { animation: sheet-down .25s var(--emph) both; }
@keyframes sheet-down { to { transform: translateY(100%); } }
.menu.ctx.sheetlike::before { content: ""; display: block; width: 32px; height: 4px; border-radius: 2px; background: var(--outline); margin: 0 auto 8px; opacity: .6; }

@media (pointer: coarse) { .menu.ctx .mi .keys { display: none; } }

/* documents + stats */
.doc-list { display: grid; gap: 6px; }
.doc-row { display: flex; align-items: center; gap: 4px; border-radius: 20px; background: var(--s2); padding-right: 6px; transition: border-radius .35s var(--spring), background-color .2s; }
.doc-row:hover { border-radius: 14px; }
.doc-row.on { background: var(--pri-c); color: var(--on-pri-c); }
.doc-main { flex: 1; min-width: 0; display: grid; gap: 2px; padding: 12px 8px 12px 18px; text-align: left; }
.doc-main .dt { font: 600 18px/1.4 var(--font-dev); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-main .dm { font: 500 12px var(--font-mono); opacity: .7; }
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.tiles .kpi { padding: 16px 18px; border-radius: 24px; }
.tiles .kpi b { font-size: clamp(24px, 6vw, 34px); }
.tiles .kpi.a { background: var(--pri-c); color: var(--on-pri-c); } .tiles .kpi.b { background: var(--tert-c); color: var(--on-tert-c); }
.tiles .kpi:nth-child(n+3):not(.a):not(.b) { background: var(--s3); color: var(--on); }
.top-words { padding-top: 4px; }

/* convert */
.out.rom { font: 400 calc(var(--fs) * .8)/1.9 var(--font-ui); }
.pane textarea.rom-in { font-family: var(--font-dev); }
#mode-seg[hidden], #dir-seg[hidden] { display: none; }
.bar { gap: 8px 12px; }

@media (max-width: 839px) {
  .tools { padding: 10px 10px 4px 12px; }
  .foot { padding: 4px 10px 12px 18px; }
  .findbar { margin: 4px 10px 0; }
  .lb2 { display: none; }
  .foot .btn { padding: 0; width: 44px; border-radius: 22px; }
  .foot .btn .ic { margin: 0; }
  .foot .btn.filled { width: auto; padding: 0 20px; } .foot .btn.filled .lb2 { display: inline; } .foot .btn.filled .ic { margin-left: -4px; }
  .tiles { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) { .fs-grp, #ime-docs, #ime-stat { display: none; }
  .foot .count { white-space: nowrap; flex: none; } .fb-row .btn.sm { padding: 0 12px; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* theme reveal (View Transitions) */
::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
::view-transition-old(root) { z-index: 1; }
::view-transition-new(root) { z-index: 2; }