:root {
  --bg: #090c0d;
  --surface: #111719;
  --surface-2: #182124;
  --line: #263234;
  --text: #edf2ee;
  --muted: #93a19d;
  --green: #35d28f;
  --cyan: #49c7d8;
  --amber: #f0b64d;
  --coral: #f36d5f;
  --ink: #070909;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(53, 210, 143, 0.09), transparent 30%),
    linear-gradient(135deg, #090c0d 0%, #111719 44%, #15120e 100%);
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(420px, 100%);
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(17, 23, 25, 0.94);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

.login-brand,
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: var(--ink);
  background: linear-gradient(135deg, var(--green), var(--amber));
  font-weight: 900;
}

.login-brand h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.1;
}

.login-brand p,
.brand span,
.kpi span,
.kpi em {
  color: var(--muted);
}

.login-brand p {
  margin: 4px 0 0;
  font-size: 13px;
}

.login-form {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.login-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.login-form input {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
  background: #0c1112;
}

.login-form input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(53, 210, 143, 0.16);
}

.form-error {
  min-height: 20px;
  margin: 0;
  color: var(--coral);
  font-size: 13px;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-top: 20px;
}

.signal-strip span {
  height: 4px;
  border-radius: 999px;
  background: var(--line);
}

.signal-strip span:nth-child(1),
.signal-strip span:nth-child(2) {
  background: var(--green);
}

.signal-strip span:nth-child(3) {
  background: var(--cyan);
}

.signal-strip span:nth-child(4) {
  background: var(--amber);
}

.signal-strip span:nth-child(5) {
  background: var(--coral);
}

.app-shell {
  min-height: 100vh;
  padding: 18px;
}

.topbar {
  min-height: 64px;
  display: grid;
  grid-template-columns: minmax(190px, 260px) 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(17, 23, 25, 0.92);
}

.brand strong {
  display: block;
  font-size: 15px;
}

.brand span {
  display: block;
  margin-top: 3px;
  font-size: 12px;
  text-transform: uppercase;
}

.tabs,
.top-actions,
.ops-grid {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tabs {
  justify-content: center;
}

.tab,
.ghost-action,
.danger-action,
.primary-action,
.icon-action {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: var(--surface-2);
}

.tab {
  min-width: 86px;
  padding: 0 14px;
}

.tab.active {
  color: var(--ink);
  border-color: transparent;
  background: var(--green);
}

.primary-action,
.danger-action,
.ghost-action {
  padding: 0 16px;
  font-weight: 700;
}

.primary-action {
  color: var(--ink);
  border-color: transparent;
  background: var(--green);
}

.danger-action {
  color: #fff7f5;
  border-color: rgba(243, 109, 95, 0.42);
  background: rgba(243, 109, 95, 0.18);
}

.ghost-action {
  border-color: rgba(53, 210, 143, 0.34);
  background: rgba(53, 210, 143, 0.1);
}

.icon-action {
  width: 40px;
  padding: 0;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.kpi,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(17, 23, 25, 0.94);
}

.kpi {
  min-height: 118px;
  display: grid;
  align-content: space-between;
  gap: 8px;
  padding: 16px;
  border-top-width: 3px;
}

.kpi strong {
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1;
  white-space: nowrap;
}

.kpi em {
  font-style: normal;
  font-size: 13px;
}

.accent-green {
  border-top-color: var(--green);
}

.accent-cyan {
  border-top-color: var(--cyan);
}

.accent-amber {
  border-top-color: var(--amber);
}

.accent-coral {
  border-top-color: var(--coral);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.9fr);
  gap: 12px;
}

.market-grid {
  grid-template-columns: minmax(360px, 0.8fr) minmax(0, 1.2fr);
}

.panel {
  min-height: 320px;
  padding: 14px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 34px;
  margin-bottom: 10px;
}

.panel h2 {
  margin: 0;
  font-size: 15px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

canvas {
  width: 100%;
  max-width: 100%;
  border-radius: 6px;
  background: #0c1112;
}

.venue-list,
.audit-list,
.risk-list,
.config-list,
.symbol-grid {
  display: grid;
  gap: 8px;
}

.venue-row,
.audit-row,
.risk-row,
.config-row,
.symbol-row {
  display: grid;
  gap: 4px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0c1112;
}

.venue-row,
.symbol-row {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.venue-row strong,
.symbol-row strong {
  font-size: 14px;
}

.venue-row span,
.symbol-row span,
.audit-row,
.risk-row,
.config-row {
  color: var(--muted);
  font-size: 12px;
}

.audit-list {
  max-height: 252px;
  overflow: auto;
}

.audit-row[data-level="risk"] {
  border-color: rgba(243, 109, 95, 0.46);
}

.audit-row[data-level="ok"] {
  border-color: rgba(53, 210, 143, 0.34);
}

.risk-row {
  grid-template-columns: 150px 1fr auto;
  align-items: center;
}

.risk-bar {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--line);
}

.risk-bar span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--green);
}

.risk-row.hot .risk-bar span {
  background: var(--coral);
}

.book-ladder {
  display: grid;
  gap: 4px;
  font-variant-numeric: tabular-nums;
}

.book-row {
  position: relative;
  min-height: 30px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  overflow: hidden;
  padding: 0 10px;
  border-radius: 6px;
  background: #0c1112;
}

.book-row::before {
  content: "";
  position: absolute;
  inset: 0;
  width: var(--depth, 0%);
  opacity: 0.22;
}

.book-row.ask::before {
  background: var(--coral);
}

.book-row.bid::before {
  background: var(--green);
}

.book-row span {
  position: relative;
  z-index: 1;
  font-size: 13px;
}

.book-row span:last-child {
  text-align: right;
}

.ops-grid {
  align-items: stretch;
}

.wide {
  flex: 1;
  min-height: 48px;
}

@media (max-width: 1100px) {
  .topbar,
  .main-grid,
  .market-grid {
    grid-template-columns: 1fr;
  }

  .tabs {
    justify-content: flex-start;
    overflow-x: auto;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .app-shell {
    padding: 10px;
  }

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

  .top-actions,
  .ops-grid {
    flex-wrap: wrap;
  }

  .tab {
    min-width: 74px;
  }

  .risk-row {
    grid-template-columns: 1fr;
  }
}