:root {
  --bg: #ffffff;
  --bg-soft: #f4f4f5;
  --card: #ffffff;
  --card-2: #fafafa;
  --stroke: #d4d4d8;
  --stroke-2: #a1a1aa;
  --text: #09090b;
  --muted: #52525b;
  --muted-2: #71717a;
  --ink: #000000;
  --paper: #ffffff;
  --hair: #e4e4e7;
  --hair-2: #c6c6cd;
  --shadow-soft: rgba(0, 0, 0, 0.06);
  --shadow-strong: rgba(0, 0, 0, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-lg: 0 20px 40px -10px var(--shadow-strong);
  --shadow-sm: 0 6px 12px -6px var(--shadow-soft);
}

* { box-sizing: border-box; }

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #09090b;
    --bg-soft: #141417;
    --card: #0f0f12;
    --card-2: #18181b;
    --stroke: #2a2a2f;
    --stroke-2: #3f3f46;
    --text: #fafafa;
    --muted: #a1a1aa;
    --muted-2: #71717a;
    --ink: #ffffff;
    --paper: #000000;
    --hair: #27272a;
    --hair-2: #3f3f46;
    --shadow-soft: rgba(0, 0, 0, 0.4);
    --shadow-strong: rgba(0, 0, 0, 0.6);
  }
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  padding: 14px 14px 120px;
}

.topbar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 4px 2px 14px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo-dot {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--stroke-2);
  box-shadow: var(--shadow-sm), inset 0 0 14px var(--shadow-soft);
}
.brand-title { font-weight: 700; letter-spacing: -0.01em; font-size: 16px; }
.brand-title .watermark {
  background: var(--ink);
  color: var(--paper);
  font-weight: 800;
  padding: 1px 7px; border-radius: 999px; font-size: 11px; margin-left: 4px;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.brand-sub { color: var(--muted); font-size: 12px; }

.banner-test {
  border: 1px solid var(--stroke-2);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 12px; font-weight: 600;
  padding: 8px 10px; border-radius: var(--radius-sm);
}

.card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-lg);
  margin-top: 14px;
  position: relative;
}

.card-head {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  margin-bottom: 12px;
}
.section-sub { color: var(--muted); font-size: 12px; }

.title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
}

.is-hidden { display: none !important; }

/* Tabs */
.tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--bg-soft);
  border: 1px solid var(--stroke);
  border-radius: 14px;
  padding: 4px;
  gap: 4px;
}
.tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 10px 6px;
  border-radius: 11px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: background 0.15s ease, color 0.15s ease, transform 0.05s ease;
}
.tab:hover { color: var(--text); }
.tab.is-active {
  background: var(--ink);
  color: var(--paper);
  box-shadow: inset 0 0 0 1px var(--stroke-2);
}
.tab-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted-2); }
.tab.is-active .tab-dot { background: var(--paper); }

.tab-pane { display: none; margin-top: 14px; }
.tab-pane.is-active { display: block; }

.tab-fallback {
  background: var(--bg-soft);
  border: 1px dashed var(--stroke-2);
  color: var(--muted);
  border-radius: 12px;
  padding: 12px;
  font-size: 13px;
}
.tab-fallback strong { color: var(--text); }

/* Activity feed */
.activity-feed {
  border: 1px solid var(--stroke);
  background: var(--bg-soft);
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 14px;
}
.feed-head {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 10px 12px; border-bottom: 1px solid var(--stroke);
}
.feed-title { font-weight: 700; font-size: 13px; color: var(--text); }
.feed-sub { color: var(--muted-2); font-size: 11px; }
.feed-scroll {
  max-height: 240px;
  overflow: hidden;
  mask-image: linear-gradient(180deg, transparent 0%, #000 16px, #000 calc(100% - 24px), transparent 100%);
}
.feed-list {
  list-style: none; margin: 0; padding: 6px 0;
  animation: feedscroll 18s linear infinite;
}
.feed-list:hover { animation-play-state: paused; }
.feed-list li {
  display: grid;
  grid-template-columns: 30px 1fr 1fr auto;
  align-items: center;
  padding: 8px 12px;
  font-size: 12.5px;
  color: var(--muted);
  gap: 6px;
}
.feed-ok {
  background: var(--bg-soft);
  color: var(--text);
  border: 1px solid var(--stroke);
  border-radius: 999px;
  padding: 2px 6px;
  font-weight: 700;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-align: center;
  text-transform: uppercase;
}
.feed-who { color: var(--text); font-variant-numeric: tabular-nums; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.feed-what { color: var(--text); text-align: right; }
.feed-when { color: var(--muted-2); }
@keyframes feedscroll {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}
.feed-list::after {
  content: "";
  display: block;
  height: 0;
}
.feed-list li {
  animation: none;
}

/* CTAs */
.cta-row { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.btn {
  appearance: none;
  border: 1px solid var(--stroke-2);
  border-radius: 14px;
  padding: 14px 16px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  transition: transform 0.05s ease, filter 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  color: var(--text);
  background: var(--card);
}
.btn.block { width: 100%; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 0 10px 26px -12px var(--shadow-strong), inset 0 0 0 1px rgba(255,255,255,0.04);
}
.btn.primary:hover { filter: brightness(0.92); }
.btn.primary.danger {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 0 10px 26px -12px var(--shadow-strong), inset 0 0 0 1px rgba(255,255,255,0.04);
}
.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--stroke-2);
}
.btn.ghost:hover { background: var(--bg-soft); }
.btn-ico { display: inline-flex; align-items: center; font-size: 17px; line-height: 1; }
.btn-tag {
  font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 3px 7px; border-radius: 999px; font-weight: 800;
  background: rgba(128,128,128,0.22);
  color: currentColor;
  margin-left: auto;
}
.btn.primary .btn-tag, .btn.primary.danger .btn-tag {
  background: rgba(255,255,255,0.14);
  color: var(--paper);
}

/* Pills */
.pill {
  font-size: 11px; font-weight: 800; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 3px 8px; border-radius: 999px;
  display: inline-block;
  border: 1px solid var(--stroke);
}
.pill-ok { background: var(--bg-soft); color: var(--text); }
.pill-test { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.pill-audit { background: var(--bg-soft); color: var(--text); }
.dest-preview { color: var(--muted-2); font-size: 11.5px; max-width: 72%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Wallet card */
.wallet-row { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: baseline; }
.wallet-label { color: var(--muted); font-size: 12px; }
.wallet-val {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px; color: var(--text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.balance-row {
  display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center;
  margin: 14px 0 10px;
  padding: 14px;
  background: var(--bg-soft);
  border-radius: 14px;
  border: 1px solid var(--stroke);
}
.bal-label, .spl-label { color: var(--muted); font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase; }
.cluster-chip {
  display: inline-block; margin-left: 8px; padding: 2px 7px; border-radius: 999px;
  font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 800;
  border: 1px solid var(--stroke); color: var(--text); background: var(--bg-soft); vertical-align: middle;
}
.cluster-chip.cluster-mainnet { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.cluster-chip.cluster-devnet { background: var(--bg-soft); color: var(--text); }
.cluster-chip.cluster-testnet { background: var(--card-2); color: var(--text); }
.cluster-chip.cluster-localnet { background: var(--card-2); color: var(--text); }
.cluster-chip.cluster-mismatch { border-style: dashed; border-color: var(--text); background: var(--bg-soft); }
.bal-amount { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; margin-top: 2px; font-variant-numeric: tabular-nums; color: var(--text); }
.bal-usd { color: var(--muted); font-size: 13px; margin-top: 2px; }
.balance-right { text-align: right; }
.spl-val {
  font-size: 22px; font-weight: 800; color: var(--text);
  font-variant-numeric: tabular-nums;
}
.cluster-warning {
  margin: 6px 0 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px dashed var(--text);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 12.5px;
  line-height: 1.45;
}
.cluster-warning code {
  background: var(--card-2);
  border: 1px solid var(--stroke);
  padding: 0 5px;
  border-radius: 5px;
  font-size: 12px;
}
.cluster-warning strong { color: var(--text); font-weight: 800; }

.dest-row { display: grid; gap: 6px; margin-top: 8px; }
.dest-row label { color: var(--muted); font-size: 12px; }
.input {
  appearance: none;
  background: var(--bg-soft);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input::placeholder { color: var(--muted-2); }
.input:focus { border-color: var(--ink); box-shadow: 0 0 0 4px rgba(0,0,0,0.08); }

@media (prefers-color-scheme: dark) {
  .input:focus { box-shadow: 0 0 0 4px rgba(255,255,255,0.1); }
}

/* Amount card */
.amt-label {
  color: var(--muted); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 6px;
}
.amt-label .amt-auto { color: var(--text); font-weight: 800; }
.amt-row {
  display: grid; grid-template-columns: 1fr auto; align-items: baseline; gap: 10px;
  padding: 14px;
  background: var(--bg-soft);
  border: 1px solid var(--stroke);
  border-radius: 14px;
  margin-bottom: 10px;
}
.amt-amount { font-size: 34px; font-weight: 800; letter-spacing: -0.02em; color: var(--text); font-variant-numeric: tabular-nums; }
.amt-unit { color: var(--text); font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; }
.amt-breakdown {
  display: grid; gap: 6px; margin-bottom: 10px;
  font-size: 13px; color: var(--muted);
  background: var(--card-2);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  padding: 10px 12px;
}
.bd-row { display: flex; justify-content: space-between; gap: 14px; }
.bd-row span:last-child { color: var(--text); font-variant-numeric: tabular-nums; }
.bd-row.bd-net {
  padding-top: 8px; border-top: 1px dashed var(--stroke-2); margin-top: 4px;
}
.bd-row.bd-net span:last-child { color: var(--text); font-weight: 700; }

.warning-box {
  background: var(--bg-soft);
  border: 1px solid var(--stroke-2);
  color: var(--text);
  padding: 10px 12px; border-radius: 12px; font-size: 12.5px;
  margin: 6px 0 0;
}
.warning-box strong { color: var(--text); font-weight: 800; }

.mono-box {
  background: var(--bg-soft);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  padding: 12px;
  max-height: 420px; overflow: auto;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  white-space: pre-wrap;
  margin: 0;
}

/* Toast */
.toast-host {
  position: fixed;
  left: 0; right: 0; bottom: 18px;
  display: grid; gap: 8px;
  padding: 0 18px;
  z-index: 50;
  justify-items: center;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  max-width: 480px; width: 100%;
  background: var(--card);
  border: 1px solid var(--stroke-2);
  border-radius: 14px;
  padding: 12px 14px;
  box-shadow: 0 24px 44px -18px var(--shadow-strong), inset 0 0 0 1px rgba(128,128,128,0.04);
  animation: toastin 260ms cubic-bezier(0.22, 1, 0.36, 1);
  display: grid;
  gap: 6px;
  color: var(--text);
}
.toast.toast-ok { border-color: var(--stroke-2); }
.toast.toast-warn { border-color: var(--stroke-2); }
.toast.toast-err { border-color: var(--stroke-2); }
.toast-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.toast-title { font-weight: 700; font-size: 14px; color: var(--text); }
.toast-body { color: var(--muted); font-size: 13px; }
.toast a { color: var(--text); text-decoration: underline; text-underline-offset: 2px; }
.toast-close {
  appearance: none; background: transparent; border: 0; color: var(--muted);
  cursor: pointer; font-weight: 700; padding: 4px 6px; border-radius: 8px;
}
.toast-close:hover { background: var(--bg-soft); color: var(--text); }
@keyframes toastin {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Desktop: minor adjustments */
@media (min-width: 720px) {
  .app { max-width: 640px; padding: 22px 22px 160px; }
  .tabs { max-width: 440px; }
  .card { padding: 20px; }
  .bal-amount { font-size: 32px; }
  .amt-amount { font-size: 40px; }
}