* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --brand: #4f46e5;
  --green: #059669;
  --red: #dc2626;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.demo-banner {
  background: #fef3c7;
  color: #92400e;
  font-size: 13px;
  text-align: center;
  padding: 6px 12px;
}

.demo-banner a {
  color: inherit;
  font-weight: 600;
  margin-left: 6px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
}

.logo {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #e0e7ff;
  color: var(--brand);
  font-weight: 600;
  font-size: 13px;
}

select,
input {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

button {
  font: inherit;
  cursor: pointer;
  border-radius: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: #fff;
}

button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  font-weight: 600;
}

button.ghost:hover {
  background: var(--bg);
}

.grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 20px;
  max-width: 1080px;
  margin: 28px auto;
  padding: 0 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}

.card h2 {
  margin: 0 0 14px;
  font-size: 16px;
}

.label {
  color: var(--muted);
  font-size: 13px;
}

.balance-card {
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  color: #fff;
  border: none;
}

.balance-card .label,
.balance-card .sub,
.balance-card .updated {
  color: rgba(255, 255, 255, 0.75);
}

.balance {
  font-size: 40px;
  font-weight: 700;
  margin: 6px 0;
}

.sub {
  font-size: 14px;
}

.accounts {
  display: flex;
  gap: 40px;
  margin-top: 20px;
  font-size: 18px;
  font-weight: 600;
}

.updated {
  margin-top: 14px;
  font-size: 12px;
}

.send-card form {
  display: grid;
  gap: 12px;
}

.send-card label {
  display: grid;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.toast {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #ecfdf5;
  color: var(--green);
  font-size: 14px;
}

.summary {
  margin: 0;
  display: grid;
  gap: 10px;
}

.summary div {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 8px;
}

.summary dt {
  color: var(--muted);
}

.summary dd {
  margin: 0;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.txn-card {
  order: 3;
}

.summary-card {
  order: 4;
  align-self: start;
}

.txns {
  list-style: none;
  margin: 0;
  padding: 0;
}

.txns li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 6px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}

.txns li:hover {
  background: var(--bg);
}

.txn-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: #eef2ff;
  font-size: 18px;
}

.txn-main {
  flex: 1;
}

.txn-name {
  font-weight: 600;
}

.txn-meta {
  color: var(--muted);
  font-size: 13px;
}

.txn-amount {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.txn-amount.in {
  color: var(--green);
}

.txn-amount.out {
  color: var(--red);
}

.pill {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #fef3c7;
  color: #92400e;
  margin-left: 6px;
}

.spinner-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  padding: 20px 0;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--line);
  border-top-color: var(--brand);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

dialog {
  border: none;
  border-radius: 16px;
  padding: 24px;
  min-width: 320px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
}

dialog h3 {
  margin-top: 0;
}

.details {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  margin: 0 0 16px;
}

.details dt {
  color: var(--muted);
}

.details dd {
  margin: 0;
}

@media (max-width: 760px) {
  .grid {
    grid-template-columns: 1fr;
  }
}