:root {
  --color-canvas: #fff9f5;
  --color-eggshell: #eae1df;
  --color-white: #ffffff;
  --color-ink: #1f0812;
  --color-stone: #545e56;
  --color-terracotta: #b98b82;
  --color-rose: #e4959e;
  --color-slate: #37515f;
  --color-sage: #667761;
  --color-taupe: #917c78;

  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: "Helvetica Neue", "SF Pro Text", -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
}

.app-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-5);
}

.app-header {
  margin-bottom: var(--space-5);
}

.eyebrow {
  margin: 0 0 var(--space-2);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-stone);
  font-weight: 600;
}

.app-title {
  margin: 0 0 var(--space-2);
  font-size: clamp(34px, 4vw, 48px);
  line-height: 1.06;
  font-weight: 500;
  color: var(--color-ink);
}

.app-title em {
  font-family: "Times New Roman", Times, serif;
  font-style: italic;
  font-weight: 500;
}

.subtitle {
  margin: 0;
  max-width: 70ch;
  color: var(--color-stone);
  font-size: 15px;
  line-height: 1.55;
}

.panel {
  margin-bottom: var(--space-5);
  padding: var(--space-4);
  background: var(--color-canvas);
  border: 1px solid var(--color-stone);
}

.warning-panel {
  border-color: var(--color-taupe);
  background: color-mix(in srgb, var(--color-canvas) 90%, var(--color-eggshell) 10%);
}

.section-title {
  margin: 0 0 var(--space-4);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--color-ink);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink);
  font-weight: 600;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  min-height: 40px;
  padding: 0 var(--space-2);
  border: 1px solid var(--color-stone);
  border-radius: 0;
  background: var(--color-white);
  color: var(--color-ink);
}

input:focus,
select:focus,
button:focus-visible {
  outline: 2px solid var(--color-terracotta);
  outline-offset: 1px;
}

.help {
  margin: 0;
  color: var(--color-stone);
  font-size: 12px;
  line-height: 1.45;
}

.inline-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.btn {
  min-height: 40px;
  padding: 0 var(--space-3);
  border: 1px solid var(--color-stone);
  border-radius: 0;
  background: var(--color-eggshell);
  color: var(--color-ink);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background-color 120ms ease, color 120ms ease, border-color 120ms ease;
}

.btn:hover {
  background: var(--color-white);
}

.btn:active {
  background: var(--color-terracotta);
  border-color: var(--color-terracotta);
  color: var(--color-ink);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.btn-primary {
  border-color: var(--color-terracotta);
}

.btn-secondary {
  border-color: var(--color-stone);
}

.status-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.status-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-stone);
  font-weight: 700;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  min-width: 130px;
  padding: 0 var(--space-2);
  border: 1px solid var(--color-stone);
  background: var(--color-eggshell);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-pill.connected {
  border-color: var(--color-sage);
  background: color-mix(in srgb, var(--color-sage) 18%, var(--color-canvas) 82%);
}

.status-pill.loading {
  border-color: var(--color-terracotta);
  background: color-mix(in srgb, var(--color-terracotta) 18%, var(--color-canvas) 82%);
}

.status-pill.error {
  border-color: var(--color-rose);
  background: color-mix(in srgb, var(--color-rose) 22%, var(--color-canvas) 78%);
}

.status-meta {
  font-size: 13px;
  color: var(--color-stone);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

.metric-card {
  border: 1px solid var(--color-stone);
  padding: var(--space-3);
  background: var(--color-white);
}

.metric-label {
  margin: 0 0 var(--space-2);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-stone);
  font-weight: 700;
}

.metric-value {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-ink);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

th,
td {
  border: 1px solid var(--color-stone);
  padding: var(--space-2);
  text-align: left;
  font-size: 14px;
  vertical-align: top;
}

th {
  background: var(--color-eggshell);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 11px;
  font-weight: 700;
}

td {
  background: var(--color-white);
}

.numeric {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.muted {
  color: var(--color-stone);
}

.hidden {
  display: none !important;
}

.error-list {
  margin: 0;
  padding-left: 18px;
  color: var(--color-ink);
}

.error-list li {
  margin-bottom: var(--space-1);
}

@media (max-width: 920px) {
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .app-shell {
    padding: var(--space-4);
  }

  .grid-2,
  .inline-fields,
  .cards-grid {
    grid-template-columns: 1fr;
  }

  .controls-row {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}