:root {
  color-scheme: dark;
  --bg: #111313;
  --canvas: #101111;
  --panel: #202322;
  --panel-raised: #262928;
  --line: #343938;
  --line-strong: #555d5b;
  --text: #e7ecea;
  --muted: #a0a7a4;
  --subtle: #2d3130;
  --accent: #4950e5;
  --accent-weak: rgba(73, 80, 229, 0.18);
  --accent-glow: rgba(73, 80, 229, 0.34);
  --warn: #f2b84b;
  --danger: #ff6b5f;
  --shadow: 0 16px 34px rgba(0, 0, 0, 0.42);
  --card-width: 260px;
  --toolbar-height: 56px;
}

* {
  box-sizing: border-box;
}

html,
body,
#app {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

button {
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #1a1d1c;
  color: var(--text);
  cursor: pointer;
}

button:hover {
  border-color: var(--line-strong);
  background: #242827;
}

.app {
  display: grid;
  grid-template-rows: var(--toolbar-height) 1fr;
  min-width: 0;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(240px, 360px) minmax(120px, 1fr);
  align-items: center;
  gap: 18px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--line);
  background: #222525;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: inline-grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 35%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
}

.brand h1 {
  margin: 0;
  overflow: hidden;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand p {
  margin: 2px 0 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.toolbar-search input {
  width: 100%;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0 12px;
  outline: none;
  background: #141716;
  color: var(--text);
}

.toolbar-search input::placeholder {
  color: #777e7b;
}

.toolbar-search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
}

.toolbar-actions {
  display: flex;
  justify-content: flex-end;
}

.primary-action {
  min-width: 104px;
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 800;
}

.primary-action:hover {
  background: #5f65ee;
}

.main {
  display: grid;
  min-height: 0;
  grid-template-columns: 240px minmax(0, 1fr) 360px;
}

.table-nav,
.details {
  min-width: 0;
  overflow: auto;
  border-color: var(--line);
  background: var(--panel);
}

.table-nav {
  border-right: 1px solid var(--line);
}

.details {
  border-left: 1px solid var(--line);
}

.nav-head {
  display: flex;
  position: sticky;
  top: 0;
  z-index: 2;
  align-items: center;
  justify-content: space-between;
  height: 52px;
  padding: 0 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.nav-head h2 {
  margin: 0;
  font-size: 13px;
}

.nav-head span {
  color: var(--muted);
  font-size: 12px;
}

.table-list {
  display: grid;
  gap: 1px;
  padding: 8px 0;
}

.table-list-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 32px;
  align-items: center;
  min-width: 0;
}

.table-select {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 34px;
  border: 0;
  border-radius: 0;
  padding: 0 12px;
  background: transparent;
  color: var(--muted);
  text-align: left;
}

.table-select:hover {
  background: #252a28;
  color: var(--text);
}

.table-select[aria-current="true"] {
  background: linear-gradient(90deg, var(--accent-weak), rgba(73, 80, 229, 0.04));
  color: var(--text);
  font-weight: 700;
}

.table-list-row.is-hidden .table-select {
  color: #69716e;
}

.table-visibility-toggle {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 0;
  border-radius: 6px;
  padding: 0;
  background: transparent;
  color: var(--muted);
}

.table-visibility-toggle:hover {
  background: #252a28;
  color: var(--text);
}

.eye-icon {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.table-list-icon,
.table-icon {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 1px solid currentColor;
  border-radius: 2px;
  opacity: 0.86;
  background:
    linear-gradient(90deg, transparent 45%, currentColor 45%, currentColor 55%, transparent 55%),
    linear-gradient(transparent 45%, currentColor 45%, currentColor 55%, transparent 55%);
}

.canvas {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.11) 1px, transparent 1.2px), var(--canvas);
  background-size: 22px 22px;
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.canvas.is-panning {
  cursor: grabbing;
}

.world {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 0 0;
}

.edges,
.nodes {
  position: absolute;
  top: 0;
  left: 0;
}

.edges {
  overflow: visible;
  pointer-events: none;
}

.edge {
  fill: none;
  stroke: #4c5351;
  stroke-width: 2;
}

.edge.is-selected {
  filter: drop-shadow(0 0 7px var(--accent-glow));
  stroke: var(--accent);
  stroke-width: 3;
}

.edge-cardinality {
  pointer-events: none;
}

.edge-cardinality line,
.edge-cardinality circle {
  fill: var(--canvas);
  stroke: #4c5351;
  stroke-linecap: square;
  stroke-linejoin: round;
  stroke-width: 2;
}

.edge-cardinality.is-selected line,
.edge-cardinality.is-selected circle {
  fill: var(--canvas);
  stroke: var(--accent);
  stroke-width: 3;
}

.table-card {
  appearance: none;
  position: absolute;
  display: flex;
  flex-direction: column;
  width: var(--card-width);
  min-height: 62px;
  align-items: stretch;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--panel-raised);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.32);
  color: var(--muted);
  cursor: grab;
  font: inherit;
  text-align: left;
  touch-action: none;
  user-select: none;
}

.table-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.table-card.is-selected {
  border-color: var(--accent);
  box-shadow:
    0 0 0 1px var(--accent),
    0 0 26px var(--accent-glow),
    0 18px 32px rgba(0, 0, 0, 0.44);
  color: var(--text);
}

.table-card.is-related {
  border-color: #55625d;
  color: var(--text);
}

.table-card.is-muted {
  opacity: 0.36;
}

.table-card.is-dragging {
  z-index: 4;
  cursor: grabbing;
}

.table-head {
  display: flex;
  min-width: 0;
  min-height: 60px;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
}

.table-name {
  overflow: hidden;
  font-size: 16px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.table-fields {
  display: grid;
  border-top: 1px solid var(--line);
}

.table-field {
  display: grid;
  min-width: 0;
  height: 28px;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 0 10px 0 16px;
  color: var(--muted);
  font-size: 11px;
}

.table-field + .table-field {
  border-top: 1px solid #303534;
}

.table-field.is-key {
  color: var(--text);
}

.field-name,
.field-type {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.field-type {
  max-width: 92px;
  color: #7f8784;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 10px;
}

.details-inner {
  display: grid;
  gap: 18px;
  padding: 16px;
}

.details h2,
.details h3 {
  margin: 0;
  line-height: 1.2;
}

.details h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
}

.details h3 {
  color: var(--text);
  font-size: 14px;
}

.details p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.details-section {
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

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

.detail-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 9px;
  background: #2a2d2c;
}

.detail-row strong {
  display: block;
  overflow-wrap: anywhere;
  font-size: 12px;
}

.detail-row code,
.pill {
  border-radius: 4px;
  background: #363a39;
  padding: 2px 6px;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
}

.pill-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 7px;
}

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

.empty-state,
.status {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.empty-state {
  top: 45%;
  padding: 16px 20px;
  color: var(--muted);
}

.status {
  bottom: 78px;
  max-width: min(560px, calc(100% - 32px));
  padding: 10px 12px;
  color: var(--danger);
  font-size: 12px;
}

.canvas-toolbar {
  display: flex;
  position: absolute;
  bottom: 18px;
  left: 50%;
  z-index: 3;
  align-items: center;
  gap: 10px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 12px;
  background: rgba(38, 41, 40, 0.96);
  box-shadow: var(--shadow);
  transform: translateX(-50%);
}

.canvas-toolbar button {
  width: 28px;
  height: 28px;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
  font-size: 17px;
}

#fit-view {
  width: auto;
  padding: 0 6px;
  font-size: 13px;
  font-weight: 700;
}

.show-mode-control {
  position: relative;
  display: flex;
}

.show-mode-button {
  display: flex;
  width: auto !important;
  min-width: 104px;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 8px !important;
  color: var(--text);
  font-size: 12px !important;
  font-weight: 700;
}

.show-mode-caret {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
}

.show-mode-menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  z-index: 4;
  display: grid;
  width: 158px;
  gap: 2px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 5px;
  background: rgba(32, 35, 34, 0.98);
  box-shadow: var(--shadow);
}

.show-mode-menu[hidden] {
  display: none;
}

.show-mode-option {
  display: grid;
  width: 100% !important;
  height: 30px !important;
  grid-template-columns: minmax(0, 1fr) 14px;
  gap: 8px;
  align-items: center;
  border-radius: 6px !important;
  padding: 0 8px !important;
  color: var(--muted) !important;
  font-size: 12px !important;
  text-align: left;
}

.show-mode-option:hover,
.show-mode-option[aria-checked="true"] {
  background: #2a2e2d !important;
  color: var(--text) !important;
}

.show-mode-check {
  display: grid;
  place-items: center;
}

.check-icon {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.3;
}

#zoom-label {
  width: 48px;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--line);
}

@media (max-width: 980px) {
  .toolbar {
    grid-template-columns: minmax(180px, 1fr) minmax(220px, 320px) auto;
  }

  .main {
    grid-template-rows: minmax(0, 1fr) minmax(220px, 36vh);
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .details {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 700px) {
  html,
  body,
  #app {
    height: auto;
    min-height: 100%;
  }

  .app {
    grid-template-rows: auto auto;
    min-height: 100%;
  }

  .toolbar {
    grid-template-columns: 1fr auto;
    gap: 10px;
    padding: 8px;
  }

  .toolbar-search {
    grid-column: 1 / -1;
  }

  .brand-mark {
    display: none;
  }

  .brand h1 {
    font-size: 16px;
  }

  .brand p {
    overflow-wrap: anywhere;
    white-space: normal;
  }

  .main {
    min-height: auto;
    grid-template-rows: auto minmax(520px, 64vh) auto;
    grid-template-columns: 1fr;
  }

  .table-nav {
    max-height: 240px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .canvas {
    min-height: 520px;
  }

  .details {
    max-height: none;
    overflow: visible;
  }
}