.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
}

.nav-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.topbar h1,
.results-header h2,
.panel h2,
.track-title {
  margin: 0;
}

.topbar p,
.results-header p,
.panel-copy,
.status-message,
.empty-state p,
.track-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
}

.panel-copy {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.panel-copy p {
  margin: 0;
}

.panel-copy a,
.site-footer a {
  color: var(--accent);
}

.summary-chip,
.track-chip,
.metric-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
  background: var(--panel-soft);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.875rem;
  white-space: nowrap;
}

.layout {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 12px 28px var(--shadow);
}

.controls-panel,
.empty-state,
.track-card {
  padding: 20px;
}

.results-panel,
.results-root,
.track-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.results-header,
.status-header,
.track-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.field,
.run-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.field-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
  align-items: end;
}

.field-label {
  font-size: 0.84rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.label-with-help {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
}

.tooltip-chip {
  position: relative;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--panel-soft);
  color: var(--muted);
  cursor: help;
  font-size: 0.7rem;
  line-height: 1;
}

.tooltip-chip::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translateX(-50%);
  width: 230px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--panel-soft);
  color: var(--text);
  text-align: left;
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.76rem;
  line-height: 1.45;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
  z-index: 30;
}

.tooltip-chip:hover::after,
.tooltip-chip:focus-visible::after {
  opacity: 1;
}

.backup-input,
input[type="number"],
select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-soft);
  color: var(--text);
}

.backup-input {
  min-height: 160px;
  resize: vertical;
  padding: 12px 14px;
}

input[type="number"],
select {
  padding: 10px 12px;
  min-height: 42px;
}

.backup-input:focus,
input[type="number"]:focus,
select:focus {
  outline: 1px solid var(--accent);
  border-color: var(--accent);
}

.clear-row {
  margin-top: 10px;
  display: flex;
  justify-content: flex-start;
}

.run-row {
  margin-top: 16px;
  align-items: flex-start;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease, color 120ms ease;
}

.button:hover:not(:disabled) {
  border-color: var(--accent);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  font-weight: 700;
}

.button.primary:hover:not(:disabled) {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.button.secondary {
  background: var(--panel-soft);
}

.notice {
  margin-top: 16px;
  border-radius: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
}

.notice-warn {
  background: var(--warn-bg);
  border-color: var(--warn-border);
  color: var(--warn-text);
}

.status-box {
  margin-top: 16px;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel-soft);
}

.progress-track {
  margin-top: 12px;
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: #0e1529;
  border: 1px solid var(--border);
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: var(--accent);
}

#cancel-button {
  margin-top: 12px;
  align-self: flex-start;
}

.track-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tabs-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tab-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel-soft);
  color: var(--text);
  cursor: pointer;
}

.tab-button:hover {
  border-color: var(--accent);
}

.tab-button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  font-weight: 700;
}

.tab-panels {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tab-panel {
  display: none;
}

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

.table-wrap {
  overflow-x: auto;
}

.plan-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.plan-table th,
.plan-table td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.plan-table thead th {
  background: var(--panel-soft);
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.plan-table tbody tr:last-child td {
  border-bottom: none;
}

.plan-table tbody td {
  background: var(--panel-alt);
}

.gain-positive {
  color: var(--success);
}

.gain-negative {
  color: var(--danger);
}

.mono {
  font-family: Consolas, "Courier New", monospace;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .topbar,
  .results-header,
  .track-header {
    flex-direction: column;
  }
}