/* External signing (ext-sign.js) — dialog on desktop, native bottom sheet <=600px. Tokens: rx-tokens.css */
.xs-back { position: fixed; inset: 0; z-index: 9500; display: grid; place-items: center; padding: 24px; background: rgba(5,5,7,0); transition: background .2s; }
.xs-back.is-open { background: rgba(5,5,7,.7); }
.xs-sheet { --xs-num: -apple-system, "SF Pro Display", Inter, var(--rx-sans); position: relative; width: min(600px, 100%); max-height: calc(100dvh - 48px); overflow: auto; overscroll-behavior: contain; box-sizing: border-box; padding: 8px 28px 28px; border-radius: 20px; background: var(--rx-ink-1); border: 1px solid var(--rx-line-2); box-shadow: 0 30px 90px rgba(0,0,0,.55); color: var(--rx-bone); font: 400 15px/1.5 var(--rx-sans); opacity: 0; transform: translateY(12px) scale(.985); transition: opacity .2s, transform .28s cubic-bezier(.2,.8,.2,1); }
.xs-back.is-open .xs-sheet { opacity: 1; transform: none; }
.xs-grab { display: none; }
.xs-head { position: sticky; top: -8px; z-index: 3; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 0 -28px 8px; padding: 16px 28px 12px; background: var(--rx-ink-1); }
.xs-title { margin: 0; font: 700 22px/1.2 var(--rx-sans); letter-spacing: -.02em; }
.xs-x { display: grid; place-items: center; width: 36px; height: 36px; flex: none; border: 0; border-radius: 10px; background: rgba(255,255,255,.06); color: var(--rx-bone-2); cursor: pointer; }
.xs-x:hover { background: rgba(255,255,255,.1); color: var(--rx-bone); }
.xs-x svg, .xs-btn i svg, .xs-seg-b i svg, .xs-note > i svg, .xs-acct > i svg, .xs-filebox > i svg, .xs-drop > i svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.xs-body { display: grid; gap: 18px; }
.xs-lead { margin: 0; color: var(--rx-bone-2); font-size: 15px; }
.xs-h { margin: 0 0 10px; font: 600 13px/1.3 var(--rx-sans); letter-spacing: .02em; color: var(--rx-bone-3); text-transform: none; }
.xs-sec { display: grid; gap: 12px; }
.xs-sec > .xs-h { margin: 0; color: var(--rx-bone); font-size: 15px; letter-spacing: -.005em; }
.xs-num { font-family: var(--xs-num); font-variant-numeric: tabular-nums; }
.xs-fine { margin: -8px 0 0; font-size: 13px; color: var(--rx-bone-3); }
/* steps */
.xs-steps { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(0, 1fr)); gap: 8px; margin: 0; padding: 0; counter-reset: s; }
.xs-step { position: relative; display: grid; gap: 6px; justify-items: start; font: 500 12px/1.25 var(--rx-sans); color: var(--rx-bone-3); }
.xs-step::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; border-radius: 3px; background: rgba(255,255,255,.08); }
.xs-step i { display: none; }
.xs-step span { padding-top: 10px; }
.xs-step.is-on, .xs-step.is-done { color: var(--rx-bone); }
.xs-step.is-done::before { background: var(--rx-ok); }
.xs-step.is-on::before { background: linear-gradient(90deg, var(--rx-sig) 0 55%, rgba(255,255,255,.08) 55%); }
.xs-step.is-warn::before { background: var(--rx-warn); } .xs-step.is-warn { color: var(--rx-warn); }
.xs-step.is-bad::before { background: var(--rx-bad); } .xs-step.is-bad { color: #ff9b9b; }
/* segmented */
.xs-seg { display: flex; gap: 2px; padding: 2px; border-radius: 10px; background: rgba(255,255,255,.07); }
.xs-seg-b { flex: 1 1 0; display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-width: 0; min-height: 36px; padding: 0 10px; border: 0; border-radius: 8px; background: transparent; color: var(--rx-bone-2); font: 600 13px/1.15 var(--rx-sans); cursor: pointer; text-align: center; transition: background .15s, color .15s; }
.xs-seg-b:hover { color: var(--rx-bone); }
.xs-seg-b.is-on { background: rgba(255,255,255,.14); color: var(--rx-bone); }
.xs-seg-b i { display: inline-flex; }
.xs-seg-b i svg { width: 16px; height: 16px; }
/* devices */
.xs-devs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.xs-dev { display: grid; align-content: center; gap: 2px; min-height: 56px; padding: 8px 10px; border: 1px solid transparent; border-radius: 12px; background: rgba(255,255,255,.05); color: var(--rx-bone); text-align: left; cursor: pointer; transition: background .15s, border-color .15s; }
.xs-dev b { font: 600 14px/1.2 var(--rx-sans); }
.xs-dev small { font: 400 11px/1.25 var(--rx-sans); color: var(--rx-bone-3); }
.xs-dev:hover { background: rgba(255,255,255,.08); }
.xs-dev.is-on { border-color: var(--rx-sig); background: var(--rx-sig-wash); }
.xs-tip { margin: -6px 0 0; padding: 10px 12px; border-radius: 10px; background: rgba(255,255,255,.04); font-size: 13px; color: var(--rx-bone-2); }
/* summary */
.xs-sum { display: grid; gap: 12px; padding: 16px; border-radius: 16px; background: rgba(255,255,255,.04); }
.xs-sum-l { margin: 0; font-size: 14px; color: var(--rx-bone-2); }
.xs-outs { display: grid; }
.xs-out { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px solid var(--rx-line); }
.xs-out:first-child { border-top: 0; padding-top: 0; }
.xs-out-a { display: grid; gap: 2px; min-width: 0; }
.xs-out-a small { font-size: 12px; color: var(--rx-bone-3); }
.xs-out-a b { font-size: 15px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xs-out-v { font-size: 15px; font-weight: 600; white-space: nowrap; }
.xs-out.is-mine .xs-out-v { color: var(--rx-bone-2); }
.xs-sum-f { display: flex; flex-wrap: wrap; gap: 6px 18px; padding-top: 10px; border-top: 1px solid var(--rx-line); font-size: 13px; color: var(--rx-bone-3); }
.xs-sum-f b { color: var(--rx-bone); font-weight: 600; }
.xs-txid { margin-left: auto; }
/* out */
.xs-out-pane { display: grid; gap: 12px; }
.xs-qr-wrap { display: grid; justify-items: center; gap: 10px; }
.xs-qr { width: min(300px, 78vw); aspect-ratio: 1; padding: 10px; border-radius: 16px; background: #fff; box-sizing: border-box; }
.xs-qr svg { display: block; width: 100%; height: 100%; }
.xs-qr--msg { width: min(240px, 70vw); margin: 10px auto 0; }
.xs-qr-meta { margin: 0; font-size: 12px; color: var(--rx-bone-3); }
.xs-qr-wrap .xs-seg { width: 100%; max-width: 420px; }
.xs-filebox { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 14px 16px; border-radius: 14px; background: rgba(255,255,255,.05); }
.xs-filebox > i { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,.07); color: var(--rx-bone-2); }
.xs-filebox b { display: block; font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xs-filebox small { font-size: 12px; color: var(--rx-bone-3); }
.xs-ta { width: 100%; box-sizing: border-box; min-height: 96px; padding: 12px 14px; border: 1px solid var(--rx-line-2); border-radius: 12px; background: var(--rx-ink); color: var(--rx-bone); font: 400 13px/1.45 var(--rx-mono); resize: vertical; word-break: break-all; }
.xs-ta:focus { outline: none; border-color: var(--rx-sig); box-shadow: 0 0 0 3px var(--rx-sig-wash); }
.xs-ta--ro { color: var(--rx-bone-2); }
/* buttons */
.xs-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 16px; border: 0; border-radius: 12px; font: 600 14px/1.2 var(--rx-sans); cursor: pointer; transition: background .15s, transform .09s, opacity .15s; }
.xs-btn:active:not(:disabled) { transform: scale(.97); }
.xs-btn--pri { background: var(--rx-sig); color: var(--rx-sig-ink); }
.xs-btn--pri:hover:not(:disabled) { background: var(--rx-sig-hi); }
.xs-btn--sec { background: rgba(255,255,255,.08); color: var(--rx-bone); }
.xs-btn--sec:hover { background: rgba(255,255,255,.12); }
.xs-btn:disabled { background: var(--rx-ink-3); color: var(--rx-bone-4); cursor: not-allowed; }
.xs-btn.is-done { background: var(--rx-ok-wash); color: var(--rx-ok); }
.xs-btn:focus-visible, .xs-seg-b:focus-visible, .xs-dev:focus-visible, .xs-x:focus-visible, .xs-chip:focus-visible, .xs-tips summary:focus-visible, .xs-drop:focus-within { outline: 2px solid var(--rx-vio); outline-offset: 2px; }
.xs-cta { width: 100%; min-height: 52px; border-radius: 14px; font-size: 16px; }
.xs-row { display: flex; flex-wrap: wrap; gap: 8px; }
.xs-row > .xs-btn { flex: 1 1 160px; }
.xs-foot { display: grid; gap: 8px; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); }
/* import */
.xs-in { display: grid; gap: 12px; }
.xs-in-pane { display: grid; gap: 12px; }
.xs-in-pane > .xs-btn--pri { width: 100%; min-height: 48px; }
.xs-drop { position: relative; display: grid; justify-items: center; gap: 4px; padding: 22px 16px; border: 1.5px dashed var(--rx-line-3); border-radius: 14px; text-align: center; cursor: pointer; transition: border-color .15s, background .15s; }
.xs-drop:hover, .xs-drop.is-over { border-color: var(--rx-sig); background: var(--rx-sig-wash); }
.xs-drop > i { color: var(--rx-bone-2); }
.xs-drop b { font-size: 15px; } .xs-drop small { font-size: 13px; color: var(--rx-bone-3); }
.xs-file-in { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.xs-cam { position: relative; overflow: hidden; aspect-ratio: 4 / 3; border-radius: 16px; background: #000; }
.xs-cam video { width: 100%; height: 100%; object-fit: cover; display: block; }
.xs-cam-frame { position: absolute; inset: 14% 22%; border-radius: 18px; box-shadow: 0 0 0 999px rgba(0,0,0,.35); outline: 2px solid rgba(255,255,255,.85); }
.xs-cam-bar { position: absolute; left: 16px; right: 16px; bottom: 44px; height: 4px; border-radius: 4px; background: rgba(255,255,255,.2); }
.xs-cam-bar i { display: block; width: 0; height: 100%; border-radius: 4px; background: var(--rx-ok); transition: width .2s; }
.xs-cam-l { position: absolute; left: 0; right: 0; bottom: 12px; margin: 0; text-align: center; font: 600 13px/1.2 var(--rx-sans); color: #fff; text-shadow: 0 1px 3px rgba(0,0,0,.7); }
/* notes + status */
.xs-note { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 12px; align-items: start; padding: 14px 16px; border-radius: 14px; background: rgba(255,255,255,.05); }
.xs-note > i { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; }
.xs-note b { display: block; font-size: 15px; } .xs-note p { margin: 2px 0 0; font-size: 14px; color: var(--rx-bone-2); overflow-wrap: anywhere; }
.xs-note .xs-row { margin-top: 10px; }
.xs-note.is-ok { background: var(--rx-ok-wash); } .xs-note.is-ok > i { background: rgba(61,220,151,.18); color: var(--rx-ok); }
.xs-note.is-warn { background: var(--rx-warn-wash); } .xs-note.is-warn > i { background: rgba(245,196,81,.18); color: var(--rx-warn); }
.xs-note.is-bad { background: var(--rx-bad-wash); } .xs-note.is-bad > i { background: rgba(255,107,107,.18); color: #ff9b9b; }
.xs-status:empty { display: none; }
.xs-busy { display: flex; gap: 12px; align-items: center; padding: 14px 16px; border-radius: 14px; background: rgba(255,255,255,.05); }
.xs-busy b { display: block; } .xs-busy p { margin: 2px 0 0; font-size: 14px; color: var(--rx-bone-2); }
.xs-spin { width: 22px; height: 22px; flex: none; border-radius: 50%; border: 2.5px solid rgba(255,255,255,.15); border-top-color: var(--rx-sig); animation: xsSpin .8s linear infinite; }
@keyframes xsSpin { to { transform: rotate(360deg); } }
.xs-txid-full b { word-break: break-all; font-weight: 500; font-size: 13px; }
/* account */
.xs-res:empty { display: none; }
.xs-res { display: grid; gap: 12px; }
.xs-acct { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 12px; padding: 14px 16px; border-radius: 14px; background: var(--rx-ok-wash); }
.xs-acct > i { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: rgba(61,220,151,.18); color: var(--rx-ok); }
.xs-acct b { display: block; font-size: 15px; } .xs-acct p { margin: 2px 0; font-size: 15px; } .xs-acct small { font-size: 13px; color: var(--rx-bone-2); }
.xs-field { display: grid; gap: 6px; font-size: 13px; color: var(--rx-bone-2); }
.xs-input { min-height: 44px; padding: 0 12px; border: 1px solid var(--rx-line-2); border-radius: 10px; background: var(--rx-ink); color: var(--rx-bone); font: 400 15px var(--rx-mono); }
/* tips */
.xs-tips { border-radius: 14px; background: rgba(255,255,255,.04); }
.xs-tips summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 48px; padding: 0 16px; cursor: pointer; list-style: none; font-weight: 600; font-size: 14px; }
.xs-tips summary::-webkit-details-marker { display: none; }
.xs-tips summary small { font-weight: 500; font-size: 13px; color: var(--rx-vio); }
.xs-tips summary::after { content: "›"; margin-left: 4px; color: var(--rx-bone-3); transition: transform .15s; }
.xs-tips[open] summary::after { transform: rotate(90deg); }
.xs-tips ol { margin: 0; padding: 0 16px 4px 36px; display: grid; gap: 6px; font-size: 14px; color: var(--rx-bone-2); }
.xs-tips-devs { display: flex; flex-wrap: wrap; gap: 6px; padding: 12px 16px 16px; }
.xs-tips > .xs-note { margin: 0 16px 16px; }
.xs-chip { min-height: 32px; padding: 0 12px; border: 0; border-radius: 99px; background: rgba(255,255,255,.07); color: var(--rx-bone-2); font: 500 13px/1 var(--rx-sans); cursor: pointer; }
.xs-chip.is-on { background: var(--rx-sig-wash); color: var(--rx-sig-hi); }
.xs-msg { margin: 0; max-height: 160px; overflow: auto; padding: 14px 16px; border-radius: 14px; background: var(--rx-ink); border: 1px solid var(--rx-line); font: 400 13px/1.5 var(--rx-mono); color: var(--rx-bone); white-space: pre-wrap; word-break: break-word; }
/* picker entry */
.wp-sheet__opt--ext { margin-top: 8px; }
.wp-ext-ic { display: grid; place-items: center; width: 36px; height: 36px; flex: none; border-radius: 10px; background: rgba(255,255,255,.08); color: #EDE9FE; }
.wp-ext-ic svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.wp-sheet__opt--ext span:not(.wp-ext-ic) { display: grid; gap: 2px; min-width: 0; flex: 1; }
.wp-sheet__opt--ext small { font-size: 12px; color: rgba(237,233,254,.6); }
.wp-sheet__opt--ext em { margin-left: auto; font-style: normal; opacity: .6; }
/* mobile: native bottom sheet */
@media (max-width: 600px) {
  .xs-back { place-items: end stretch; padding: 0; }
  .xs-sheet { width: 100%; max-height: 94dvh; padding: 0 16px calc(20px + env(safe-area-inset-bottom)); border-radius: 20px 20px 0 0; border: 0; transform: translateY(100%); transition: transform .28s cubic-bezier(.2,.8,.2,1), opacity .2s; }
  .xs-grab { display: block; position: sticky; top: 0; z-index: 4; width: 36px; height: 5px; margin: 8px auto 0; border-radius: 3px; background: rgba(255,255,255,.25); }
  .xs-head { top: 13px; margin: 0 -16px 4px; padding: 10px 16px 10px; }
  .xs-title { font-size: 20px; }
  .xs-body { gap: 16px; }
  .xs-devs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .xs-dev { min-height: 52px; padding: 8px; }
  .xs-dev b { font-size: 13px; } .xs-dev small { font-size: 11px; }
  .xs-step { font-size: 11px; }
  .xs-seg-b { padding: 0 6px; font-size: 13px; }
  .xs-sum { padding: 14px; }
  .xs-txid { margin-left: 0; }
  .xs-foot { position: sticky; bottom: calc(-20px - env(safe-area-inset-bottom)); margin: 0 -16px calc(-20px - env(safe-area-inset-bottom)); padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); background: var(--rx-ink-1); box-shadow: 0 -10px 20px var(--rx-ink-1); }
}
@media (max-width: 380px) { .xs-seg-b i { display: none; } .xs-devs { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (prefers-reduced-motion: reduce) { .xs-back, .xs-sheet, .xs-btn, .xs-cam-bar i { transition: none !important; } .xs-spin { animation-duration: 2.4s; } }

@media (max-width: 400px) {
  .xs-filebox { grid-template-columns: auto minmax(0, 1fr); }
  .xs-filebox > :last-child { grid-column: 1 / -1; width: 100%; justify-content: center; }
}