:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --panel: #111820;
  --panel-2: #161f29;
  --line: #273341;
  --text: #edf4fb;
  --muted: #9ca8b5;
  --green: #24c389;
  --red: #ff4d5a;
  --amber: #f0b84b;
  --blue: #5aa7ff;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 20px;
}

.topbar,
.signal-strip,
.metric-grid,
.rules-header,
.switch-row {
  display: grid;
  gap: 16px;
}

.topbar {
  grid-template-columns: 1fr auto;
  align-items: center;
  margin-bottom: 18px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.coin-bar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  margin-bottom: 18px;
}

.coin-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.coin-tab {
  min-height: 42px;
  padding: 0 12px;
  border-color: var(--line);
  color: var(--muted);
}

.coin-tab.is-active {
  color: var(--text);
  border-color: var(--blue);
  background: #102033;
}

.coin-tab.is-long {
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 45%, var(--line));
}

.coin-tab.is-short {
  color: var(--red);
  border-color: color-mix(in srgb, var(--red) 45%, var(--line));
}

.coin-tab.is-warning {
  color: var(--amber);
  border-color: color-mix(in srgb, var(--amber) 45%, var(--line));
}

.coin-tab.is-error {
  color: var(--red);
  border-color: color-mix(in srgb, var(--red) 45%, var(--line));
  opacity: 0.75;
}

.add-coin-form {
  display: grid;
  grid-template-columns: minmax(130px, 180px) 44px;
  gap: 8px;
}

.eyebrow,
.label,
.metric p {
  color: var(--muted);
  margin: 0;
  font-size: 13px;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(30px, 6vw, 56px);
}

h2 {
  font-size: 18px;
}

.connection-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  padding: 8px 12px;
  min-width: 104px;
  text-align: center;
}

.connection-pill.is-live {
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 40%, var(--line));
}

.connection-pill.is-error {
  color: var(--red);
  border-color: color-mix(in srgb, var(--red) 45%, var(--line));
}

.signal-strip {
  grid-template-columns: 1fr 1fr 1fr auto;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 18px;
}

.signal-strip strong {
  display: block;
  margin-top: 4px;
  font-size: clamp(22px, 5vw, 42px);
}

.icon-button,
button {
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: #192331;
  cursor: pointer;
}

.icon-button {
  width: 44px;
  height: 44px;
}

.rules-panel,
.log-panel,
.metric {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.settings-panel {
  display: grid;
  gap: 14px;
  padding: 16px;
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  width: min(380px, 100vw);
  height: 100vh;
  overflow: auto;
  background: var(--panel);
  border-left: 1px solid var(--line);
  box-shadow: -20px 0 60px rgb(0 0 0 / 0.35);
}

.settings-backdrop {
  position: fixed;
  inset: 0;
  z-index: 19;
  background: rgb(0 0 0 / 0.45);
}

.settings-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

input,
select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0e141d;
  color: var(--text);
  padding: 0 12px;
}

.switch-row {
  grid-template-columns: 1fr auto;
  align-items: center;
  color: var(--muted);
}

.toggle {
  min-width: 58px;
  min-height: 36px;
  color: var(--muted);
}

.toggle.is-on {
  color: #06130d;
  background: var(--green);
  border-color: var(--green);
}

.config-block {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.dashboard {
  display: grid;
  gap: 16px;
}

.metric-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.metric {
  padding: 14px;
  min-height: 116px;
}

.metric strong {
  display: block;
  margin: 8px 0;
  font-size: 24px;
  line-height: 1.1;
}

.metric span,
.rules-header span {
  color: var(--muted);
  font-size: 13px;
}

.rules-panel,
.log-panel {
  padding: 16px;
}

.rules-header {
  grid-template-columns: 1fr auto;
  align-items: center;
  margin-bottom: 12px;
}

.rule-list {
  display: grid;
  gap: 8px;
}

.rule {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #0e141d;
}

.rule-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--muted);
}

.rule.is-pass .rule-dot {
  background: var(--green);
}

.rule.is-warn .rule-dot {
  background: var(--amber);
}

.rule.is-fail .rule-dot {
  background: var(--red);
}

.rule strong {
  font-size: 14px;
}

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

#clearLogButton {
  min-height: 34px;
  padding: 0 12px;
}

#signalLog {
  display: grid;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

#signalLog li {
  border-left: 3px solid var(--blue);
  background: #0e141d;
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--muted);
}

#signalLog strong {
  color: var(--text);
}

.state-long {
  color: var(--green);
}

.state-short {
  color: var(--red);
}

.state-wait {
  color: var(--amber);
}

@media (max-width: 880px) {
  .app-shell {
    padding: 14px;
  }

  .topbar,
  .coin-bar,
  .signal-strip,
  .metric-grid {
    grid-template-columns: 1fr;
  }
}