:root {
  --er-t-bg: #0a1510;
  --er-t-panel: #0e1a14;
  --er-t-border: rgba(196, 163, 90, 0.22);
  --er-t-text: #f3efe6;
  --er-t-muted: rgba(243, 239, 230, 0.62);
  --er-t-gold: #c4a35a;
  --er-t-moss: #6b9e86;
  --er-t-font: "Outfit", sans-serif;
  --er-t-mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }
body.er-tools {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(165deg, #08120e, #0e1a14 55%, #0a1510);
  color: var(--er-t-text);
  font-family: var(--er-t-font);
}

.er-tools-top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid var(--er-t-border);
  background: rgba(8, 18, 13, 0.95);
}

.er-tools-brand {
  color: var(--er-t-gold);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
}

.er-tools-top h1 {
  margin: 0.25rem 0 0.15rem;
  font-size: 1.25rem;
}

.er-tools-top p {
  margin: 0;
  color: var(--er-t-muted);
  font-size: 0.82rem;
}

.er-tools-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

.er-tbtn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--er-t-border);
  border-radius: 8px;
  padding: 0.35rem 0.65rem;
  background: transparent;
  color: var(--er-t-text);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--er-t-font);
}

.er-tbtn:hover {
  border-color: rgba(196, 163, 90, 0.5);
  background: rgba(196, 163, 90, 0.1);
  color: #fff8e8;
}

.er-tbtn.is-on {
  background: rgba(196, 163, 90, 0.18);
  border-color: rgba(196, 163, 90, 0.5);
  color: #e8d5a3;
}

.er-tools-main {
  padding: 1rem 1.15rem 2rem;
}

.er-tools-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  margin-bottom: 0.85rem;
}

.er-tinput,
.er-tarea {
  border: 1px solid var(--er-t-border);
  border-radius: 8px;
  background: rgba(14, 26, 20, 0.85);
  color: var(--er-t-text);
  padding: 0.4rem 0.6rem;
  font-family: var(--er-t-font);
  font-size: 0.85rem;
}

.er-tinput { min-width: 220px; }
.er-tstatus {
  margin-left: auto;
  font-family: var(--er-t-mono);
  font-size: 0.72rem;
  color: var(--er-t-muted);
}

.er-ttable {
  --bs-table-bg: transparent;
  --bs-table-color: var(--er-t-text);
  --bs-table-border-color: rgba(196, 163, 90, 0.15);
  color: var(--er-t-text);
  font-size: 0.84rem;
}

.er-ttable thead th {
  color: var(--er-t-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom-color: var(--er-t-border) !important;
}

.er-ttable td input,
.er-ttable td select {
  width: 100%;
  min-width: 110px;
  border: 1px solid transparent;
  background: rgba(18, 32, 26, 0.55);
  color: var(--er-t-text);
  border-radius: 6px;
  padding: 0.25rem 0.4rem;
  font-size: 0.82rem;
}

.er-ttable td input:focus,
.er-ttable td select:focus {
  outline: none;
  border-color: rgba(196, 163, 90, 0.45);
}

.er-level {
  font-family: var(--er-t-mono);
  font-size: 0.7rem;
  color: var(--er-t-gold);
}

.er-level--child { color: var(--er-t-moss); padding-left: 1rem; }

.er-tv-layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  gap: 1rem;
  min-height: calc(100vh - 110px);
}

.er-tv-side {
  border: 1px solid var(--er-t-border);
  border-radius: 12px;
  padding: 0.85rem;
  background: rgba(14, 26, 20, 0.55);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.er-tlabel {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--er-t-muted);
}

.er-tv-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  overflow: auto;
  max-height: 60vh;
  margin-top: 0.35rem;
}

.er-tv-item {
  text-align: left;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--er-t-text);
  padding: 0.4rem 0.5rem;
  cursor: pointer;
  font-size: 0.82rem;
  font-family: var(--er-t-mono);
}

.er-tv-item:hover,
.er-tv-item.is-on {
  border-color: rgba(196, 163, 90, 0.4);
  background: rgba(196, 163, 90, 0.1);
}

.er-tv-empty {
  color: var(--er-t-muted);
  padding: 2rem 1rem;
}

.er-tv-title {
  margin: 0;
  font-size: 1.1rem;
}

.er-tv-main {
  border: 1px solid var(--er-t-border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  background: rgba(14, 26, 20, 0.35);
}

@media (max-width: 900px) {
  .er-tv-layout { grid-template-columns: 1fr; }
  .er-tools-top { flex-direction: column; }
}