:root {
  color-scheme: light;
  --bg: #f5f4f0;
  --fg: #1a1a1a;
  --border: #e0dfda;
  --muted: #8a8a85;
  --hover: #ebeae5;
  --ok: #2f7f3f;
  --err: #b0342b;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: Inter, system-ui, sans-serif;
  font-feature-settings: "ss01", "cv11";
}

body {
  -webkit-font-smoothing: antialiased;
}

button,
textarea {
  font: inherit;
}

.app {
  min-height: 100vh;
}

.topbar {
  border-bottom: 1px solid var(--border);
}

.topbarInner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 32px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.logo {
  font-family: "Playfair Display", serif;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 0.18em;
  line-height: 1;
}

.product {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 32px 56px;
}

.heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  max-width: 900px;
  margin-bottom: 32px;
}

h1 {
  margin: 0;
  font-family: "Playfair Display", serif;
  font-size: 32px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
}

.heading p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sync {
  min-width: 164px;
  border: 1px solid var(--fg);
  padding: 10px 14px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-align: center;
  text-transform: uppercase;
  white-space: nowrap;
}

.panel {
  max-width: 900px;
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 24px;
}

.field {
  display: block;
  margin-bottom: 24px;
}

.field span,
.addressRow span,
.balanceItem span {
  display: block;
  margin-bottom: 8px;
  color: var(--fg);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

textarea {
  width: 100%;
  min-height: 120px;
  resize: vertical;
  border: 1px solid var(--border);
  border-radius: 0;
  outline: none;
  background: transparent;
  color: var(--fg);
  padding: 12px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
  line-height: 1.55;
}

textarea::placeholder {
  color: var(--muted);
}

textarea:focus {
  border-color: var(--fg);
}

.addressRow {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  border-top: 1px solid var(--border);
  padding: 16px 0;
}

.addressRow span {
  margin: 0;
}

.addressRow strong {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 500;
}

.balances {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.balanceItem {
  min-height: 116px;
  padding: 20px 0;
}

.balanceItem + .balanceItem {
  border-left: 1px solid var(--border);
  padding-left: 24px;
}

.balanceItem span {
  color: var(--muted);
}

.balanceItem strong {
  display: block;
  overflow-wrap: anywhere;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0;
}

.primaryBalance strong {
  color: var(--ok);
}

.claimButton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  margin-top: 24px;
  border: 1px solid var(--fg);
  background: var(--fg);
  color: var(--bg);
  padding: 8px 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.15s, opacity 0.15s;
}

.claimButton:hover:not(:disabled) {
  background: rgba(26, 26, 26, 0.9);
}

.claimButton:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.message {
  min-height: 22px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.message[data-tone="success"] {
  color: var(--ok);
}

.message[data-tone="error"] {
  color: var(--err);
}

@media (max-width: 760px) {
  .topbarInner {
    padding: 22px 20px;
  }

  .content {
    padding: 32px 20px 44px;
  }

  .heading {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 24px;
  }

  .sync {
    min-width: 0;
  }

  .balances {
    grid-template-columns: 1fr;
  }

  .balanceItem + .balanceItem {
    border-top: 1px solid var(--border);
    border-left: 0;
    padding-left: 0;
  }
}

@media (max-width: 520px) {
  .brand {
    flex-direction: column;
    gap: 6px;
  }

  .panel {
    padding: 18px;
  }

  .addressRow {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .claimButton {
    width: 100%;
  }
}