/* 交易面板：從底部升起。無圓角、無陰影、1px 線。顏色全部來自 tokens.css。 */
.txs { position: fixed; inset: 0; z-index: 1500; display: flex; align-items: flex-end; justify-content: center; }
.txs[hidden] { display: none; }
html.txs-lock { overflow: hidden; }

.txs-scrim {
  position: absolute; inset: 0;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  opacity: 0; transition: opacity .26s ease;
}
.txs.is-open .txs-scrim { opacity: 1; }

.txs-sheet {
  position: relative; width: 100%; max-width: 560px; max-height: 92vh; overflow: auto;
  background: var(--plinth); color: var(--fg);
  border-top: 1px solid var(--line);
  padding: 22px max(20px, env(safe-area-inset-left, 0px)) calc(28px + env(safe-area-inset-bottom, 0px)) max(20px, env(safe-area-inset-right, 0px));
  font-family: var(--sans); font-weight: 300;
  transform: translateY(100%); transition: transform .26s cubic-bezier(.2, .7, .2, 1);
  outline: none;
}
.txs.is-open .txs-sheet { transform: translateY(0); }
@media (min-width: 600px) {
  .txs-sheet { border-left: 1px solid var(--line); border-right: 1px solid var(--line); padding-left: 32px; padding-right: 32px; }
}

.txs-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 28px; }
.txs-label {
  font-size: 11px; letter-spacing: .24em; text-transform: uppercase; color: var(--muted); font-weight: 400;
}
.txs-x {
  appearance: none; background: none; border: 0; color: var(--muted); cursor: pointer;
  font: 300 24px/1 var(--display); width: 44px; height: 44px; margin: -8px -12px -8px 0;
}
.txs-x:hover { color: var(--fg); }
.txs-x[hidden] { display: none; }

/* 四段進度：條件、簽名、送出、上鏈 */
.txs-phase { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin-top: 18px; }
.txs-phase i { display: block; height: 1px; background: var(--line); }
.txs-phase i.done { background: var(--fg); }
.txs-phase i.on { background: var(--gilt); height: 2px; margin-top: -.5px; animation: txs-pulse 1.4s ease-in-out infinite; }
.txs-phase i.bad { background: var(--danger); height: 2px; margin-top: -.5px; }
.txs-phase-l { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin-top: 8px; }
.txs-phase-l span { font-size: 10px; letter-spacing: .24em; text-transform: uppercase; color: var(--faint); }
.txs-phase-l span.on { color: var(--muted); }
@keyframes txs-pulse { 50% { opacity: .35; } }

/* 多步驟 */
.txs-steps { list-style: none; margin: 22px 0 0; padding: 0; border-top: 1px solid var(--line); }
.txs-step {
  display: grid; grid-template-columns: 36px 1fr auto; align-items: baseline;
  padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--faint);
}
.txs-step-n { font-family: var(--display); letter-spacing: .12em; font-size: 15px; }
.txs-step-t { font-size: 13px; letter-spacing: .08em; }
.txs-step-s { font-size: 13px; }
.txs-step.active { color: var(--fg); }
.txs-step.done { color: var(--muted); }
.txs-step.failed { color: var(--danger); }

.txs-status { margin: 26px 0 0; font-family: var(--serif); font-weight: 400; font-size: 19px; line-height: 1.5; letter-spacing: .02em; }
.txs-status.done { color: var(--gilt); }
.txs-status[hidden] { display: none; }

/* 重新報價 */
.txs-review { margin: 20px 0 0; border-top: 1px solid var(--line); }
.txs-review[hidden] { display: none; }
.txs-row { display: flex; justify-content: space-between; align-items: baseline; padding: 12px 0; border-bottom: 1px solid var(--line); }
.txs-row dt { font-size: 11px; letter-spacing: .24em; text-transform: uppercase; color: var(--muted); }
.txs-row dd { margin: 0; font-family: var(--display); font-size: 22px; letter-spacing: .06em; font-variant-numeric: lining-nums tabular-nums; }

/* BscScan 連結 */
.txs-hash {
  display: flex; gap: 12px; align-items: baseline; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line);
  font-size: 11px; letter-spacing: .24em; text-transform: uppercase; color: var(--muted); text-decoration: none;
}
.txs-hash[hidden] { display: none; }
.txs-hash:hover { color: var(--gilt); }
.txs-hash-v { font-family: var(--display); font-size: 15px; letter-spacing: .08em; text-transform: none; color: var(--fg); }

/* 失敗 */
.txs-error { margin-top: 26px; }
.txs-error[hidden] { display: none; }
.txs-msg { margin: 0; font-family: var(--serif); font-weight: 400; font-size: 19px; line-height: 1.5; color: var(--fg); }
.txs-detail { margin: 10px 0 0; font-size: 12px; letter-spacing: .04em; color: var(--faint); word-break: break-word; }
.txs-detail[hidden] { display: none; }
.txs-sheet[data-state="failed"] .txs-msg { border-left: 1px solid var(--danger); padding-left: 14px; }

/* 按鈕 */
.txs-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.txs-actions[hidden] { display: none; }
.txs-btn {
  appearance: none; display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 28px; flex: 1 1 160px;
  background: transparent; color: var(--fg); border: 1px solid var(--line); border-radius: 0; cursor: pointer;
  font: 400 12px/1 var(--sans); letter-spacing: .24em; text-transform: uppercase; text-decoration: none;
  transition: background .18s, border-color .18s, color .18s;
}
.txs-btn:hover { border-color: var(--fg); }
.txs-btn.primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.txs-btn.primary:hover { background: var(--gilt); border-color: var(--gilt); }

.txs-sheet :focus-visible, .txs-x:focus-visible { outline: 1px solid var(--gilt); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  .txs-scrim, .txs-sheet { transition: none; }
  .txs-phase i.on { animation: none; }
}