:root {
  --bg: #0b1020;
  --panel: rgba(255, 255, 255, 0.06);
  --panelBorder: rgba(255, 255, 255, 0.1);
  --text: rgba(255, 255, 255, 0.9);
  --muted: rgba(255, 255, 255, 0.65);
  --accent: #7dd3fc;
  --danger: #fb7185;
  --ok: #34d399;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

html,
body {
  height: 100%;
  margin: 0;
  background: radial-gradient(1200px 900px at 30% 10%, rgba(125, 211, 252, 0.08), transparent 60%),
    radial-gradient(1000px 700px at 90% 10%, rgba(251, 113, 133, 0.06), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
}

.app {
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr;
  grid-template-columns: 420px 1fr;
  grid-template-areas:
    "top top"
    "side main";
}

.topbar {
  grid-area: top;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--panelBorder);
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar__title {
  font-weight: 700;
  letter-spacing: 0.2px;
  font-size: 16px;
}

.topbar__subtitle {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.topbar__actions {
  display: flex;
  gap: 10px;
}

.btn {
  appearance: none;
  border: 1px solid var(--panelBorder);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.btn:hover {
  border-color: rgba(125, 211, 252, 0.4);
}

.btn--ghost {
  background: transparent;
  box-shadow: none;
}

.sidebar {
  grid-area: side;
  padding: 16px;
  overflow: auto;
  border-right: 1px solid var(--panelBorder);
}

.main {
  grid-area: main;
  padding: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panelBorder);
  border-radius: 14px;
  padding: 14px;
  box-shadow: var(--shadow);
  margin-bottom: 12px;
}

.panel__title {
  font-size: 12px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}

.input {
  width: 100%;
  box-sizing: border-box;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--panelBorder);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  outline: none;
}

.input:focus {
  border-color: rgba(125, 211, 252, 0.5);
}

.moduleList {
  display: grid;
  gap: 10px;
}

.module {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.18);
  border-radius: 12px;
  padding: 10px;
}

.module__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.module__name {
  font-weight: 600;
  font-size: 13px;
}

.module__meta {
  color: var(--muted);
  font-size: 12px;
}

.module__items {
  display: grid;
  gap: 6px;
}

.chk {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  color: var(--text);
  user-select: none;
}

.chk input {
  width: 16px;
  height: 16px;
}

.details {
  display: grid;
  gap: 10px;
}

.details__title {
  font-weight: 700;
  font-family: var(--mono);
}

.details__grid {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  overflow: hidden;
}

.details__row {
  display: grid;
  grid-template-columns: 1fr 120px 90px;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--mono);
  font-size: 12px;
}

.details__row:last-child {
  border-bottom: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 11px;
  padding: 2px 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--muted);
}

.badge--pk {
  border-color: rgba(125, 211, 252, 0.45);
  color: rgba(125, 211, 252, 0.95);
}

.badge--fk {
  border-color: rgba(251, 113, 133, 0.55);
  color: rgba(251, 113, 133, 0.95);
}

.badge--nn {
  border-color: rgba(52, 211, 153, 0.55);
  color: rgba(52, 211, 153, 0.95);
}

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

.meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.meta__item {
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--muted);
}

.canvas {
  flex: 1;
  min-height: 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  overflow: auto;
  box-shadow: var(--shadow);
}

.diagram {
  padding: 18px;
}

.diagram .node rect,
.diagram .node polygon,
.diagram .node path {
  stroke: rgba(255, 255, 255, 0.22) !important;
}

.diagram text {
  font-family: var(--mono) !important;
}

@media (max-width: 1100px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-areas:
      "top"
      "side"
      "main";
    grid-template-rows: auto auto 1fr;
  }
  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--panelBorder);
  }
}