:root {
  /* FaxCore Brand Palette */
  --fxc-logo-blue: #537DB5;
  --fxc-dark-blue: #0B3348;
  --fxc-orange: #FF9326;
  --fxc-dark-grey: #333333;

  /* Dark theme (default) — anchored to brand */
  --bg: #0a1520;
  --surface: #0f1e2e;
  --surface-hover: #152a3e;
  --surface-active: #1b3450;
  --border: #1e3a54;
  --fg: #e2e8f0;
  --muted: #8ba2b8;
  --accent: #537DB5;
  --accent-soft: rgba(83, 125, 181, 0.14);
  --accent-hover: #6b93c9;
  --accent-glow: rgba(83, 125, 181, 0.35);
  --orange: #FF9326;
  --orange-soft: rgba(255, 147, 38, 0.14);
  --orange-hover: #e57e17;
  --warn: #e09f3e;
  --warn-soft: rgba(224, 159, 62, 0.15);
  --danger: #ef476f;
  --danger-soft: rgba(239, 71, 111, 0.15);
  --code-bg: #0b1822;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: "JetBrains Mono", Consolas, "Courier New", monospace;
  --radius: 8px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-hover: #edf2f9;
  --surface-active: #dce5f0;
  --border: #d0dae6;
  --fg: #1a2233;
  --muted: #5e7085;
  --accent: #537DB5;
  --accent-soft: rgba(83, 125, 181, 0.10);
  --accent-hover: #43699c;
  --accent-glow: rgba(83, 125, 181, 0.18);
  --orange: #FF9326;
  --orange-soft: #fff5eb;
  --orange-hover: #e57e17;
  --warn: #b86a04;
  --warn-soft: #fcf2e3;
  --danger: #cf2249;
  --danger-soft: #fce8ec;
  --code-bg: #f0f4fa;
  --shadow: 0 4px 16px rgba(11, 51, 72, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Subtle Large Watermark Background Across Workspace — matches FaxCore Client */
.app-background-watermark {
  position: fixed;
  top: calc(50% + 25px);
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(980px, 85vw);
  height: auto;
  max-height: min(980px, 85vh);
  object-fit: contain;
  opacity: 0.075;
  pointer-events: none;
  z-index: 0;
  user-select: none;
  -webkit-user-drag: none;
  transition: opacity 0.3s ease;
}
[data-theme="light"] .app-background-watermark { opacity: 0.055; }

/* Header buttons (dark-blue bar context) */
.header-meta .btn {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.85);
}
.header-meta .btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

header {
  background-color: var(--fxc-dark-blue);
  border-bottom: 1px solid rgba(83, 125, 181, 0.25);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  color: #ffffff;
}

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

.brand-icon {
  height: 26px;
  width: auto;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.35));
}

.brand-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.brand-subtitle {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background-color: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.status-dot.warn { background-color: var(--warn); box-shadow: 0 0 8px var(--warn); }

.nav-tabs {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  padding: 0 24px;
  gap: 8px;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--fg);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

main {
  flex: 1;
  padding: 24px;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

/* Studio Layout */
.studio-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.card-header {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: rgba(255, 255, 255, 0.02);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body {
  padding: 16px 18px;
}

/* Editor Toolbar */
.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.select-input, .text-input {
  background-color: var(--code-bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
  outline: none;
}

.select-input:focus, .text-input:focus {
  border-color: var(--accent);
}

.btn {
  background-color: var(--surface-hover);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.btn:hover {
  background-color: var(--surface-active);
  border-color: var(--muted);
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-danger {
  background-color: var(--danger-soft);
  color: var(--danger);
  border-color: var(--danger);
}

.btn-orange {
  background-color: var(--orange);
  color: #ffffff;
  border-color: var(--orange);
  font-weight: 700;
}

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

.sql-editor-container {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 6px;
  background-color: var(--code-bg);
  overflow: hidden;
}

.sql-editor {
  width: 100%;
  height: 220px;
  background: transparent;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  padding: 14px;
  border: none;
  resize: vertical;
  outline: none;
  tab-size: 4;
}

/* Safety Inspector Panel */
.linter-box {
  margin-top: 14px;
  border-radius: 6px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  background-color: var(--code-bg);
}

.linter-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.badge {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.badge-success { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent-glow); }
.badge-warning { background: var(--warn-soft); color: var(--warn); border: 1px solid rgba(224, 159, 62, 0.3); }
.badge-danger { background: var(--danger-soft); color: var(--danger); border: 1px solid rgba(239, 71, 111, 0.3); }

.issue-item {
  padding: 8px 10px;
  border-radius: 5px;
  margin-top: 6px;
  font-size: 13px;
}

.issue-item.violation {
  background: var(--danger-soft);
  border-left: 3px solid var(--danger);
  color: var(--danger);
}

.issue-item.warning {
  background: var(--warn-soft);
  border-left: 3px solid var(--warn);
  color: var(--warn);
}

.issue-suggestion {
  font-size: 12px;
  opacity: 0.9;
  margin-top: 3px;
  font-style: italic;
}

/* Results Grid */
.results-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--muted);
}

.table-responsive {
  max-height: 480px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  background-color: var(--code-bg);
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}

table.data-table th, table.data-table td {
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

table.data-table th {
  background-color: var(--surface);
  position: sticky;
  top: 0;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.04em;
  z-index: 10;
}

table.data-table tr:hover {
  background-color: var(--surface-hover);
}

/* Recipe Cards Grid */
.recipes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 16px;
}

.recipe-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.recipe-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-glow);
}

.recipe-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.recipe-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.recipe-traps {
  font-size: 12px;
  background-color: var(--code-bg);
  padding: 8px 12px;
  border-radius: 6px;
  border-left: 3px solid var(--orange);
}

.recipe-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* Schema Explorer */
.schema-categories {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.table-details {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.table-summary {
  padding: 12px 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  background-color: var(--surface-hover);
}

.table-summary:hover {
  background-color: var(--surface-active);
}

.columns-list {
  padding: 14px 18px;
}

/* Callout Box */
.alert-box {
  padding: 14px 18px;
  border-radius: 6px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
}

.alert-danger {
  background-color: var(--danger-soft);
  border: 1px solid var(--danger);
  color: var(--danger);
}

.alert-info {
  background-color: var(--accent-soft);
  border: 1px solid var(--accent);
  color: var(--fg);
}

/* Code Pre */
pre.code-block {
  background-color: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  overflow-x: auto;
  position: relative;
  margin-top: 8px;
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 11px;
  padding: 3px 8px;
}

footer {
  margin-top: auto;
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  background-color: var(--fxc-dark-blue);
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ---- Enterprise additions ---- */
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.badge-muted { background: var(--surface-hover); color: var(--muted); border: 1px solid var(--border); }
.verify-box { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 13px; border: 1px solid var(--border); background: var(--surface); }
.verify-box.ok { border-color: var(--accent); background: var(--accent-soft); }
.verify-box.bad { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); }
.verify-box ul { padding-left: 18px; margin-top: 4px; font-family: var(--font-mono); font-size: 12px; }
td.sql-cell { max-width: 420px; overflow: hidden; text-overflow: ellipsis; font-family: var(--font-mono); font-size: 12px; }
@media (max-width: 700px) { .recipes-grid { grid-template-columns: 1fr; } .nav-tabs { overflow-x: auto; } }

/* ---- Parameter form, chart, dialogs, row actions ---- */
.btn-sm { padding: 3px 9px; font-size: 12px; }
.btn.active { border-color: var(--accent); color: var(--accent); }

.param-box {
  margin-bottom: 14px; padding: 12px 16px; border: 1px solid var(--border);
  border-left: 3px solid var(--orange); border-radius: 6px; background-color: var(--code-bg);
}
.param-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 14px; }
.param-summary { color: var(--muted); font-size: 12px; margin-top: 4px; }
.param-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px 16px; margin-top: 12px; }
.param-field { display: flex; flex-direction: column; gap: 4px; }
.param-field label { font-size: 12px; font-weight: 600; color: var(--muted); }
.param-field small { font-size: 11px; color: var(--muted); }
.param-hint { font-size: 11px; color: var(--accent); font-family: var(--font-mono); min-height: 14px; }
.param-hint.bad { color: var(--danger); }
.text-input:disabled { opacity: 0.7; cursor: not-allowed; }

.chart-box { margin-bottom: 14px; padding: 12px; border: 1px solid var(--border); border-radius: 6px; background-color: var(--code-bg); }
.chart-controls { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 8px; font-size: 12px; color: var(--muted); }
.chart-controls label { display: inline-flex; align-items: center; gap: 6px; }
.chart-wrap { overflow-x: auto; }
.chart-wrap svg { display: block; min-width: 520px; }
.chart-text { fill: var(--muted); font-size: 11px; font-family: var(--font-body); }
.chart-grid { stroke: var(--border); stroke-width: 1; }
.chart-empty { padding: 24px; text-align: center; color: var(--muted); }

.row-actions { display: flex; gap: 6px; justify-content: flex-end; white-space: nowrap; }
table.data-table td small { color: var(--muted); white-space: normal; }

dialog.fx-dialog {
  background-color: var(--surface); color: var(--fg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0; width: min(520px, 94vw); box-shadow: var(--shadow);
}
dialog.fx-dialog::backdrop { background: rgba(0, 0, 0, 0.55); }
.fx-form { padding: 18px 20px; display: flex; flex-direction: column; gap: 12px; }
.fx-form h3 { font-size: 16px; }
.fx-body { display: flex; flex-direction: column; gap: 12px; }
.fx-field { display: flex; flex-direction: column; gap: 4px; font-size: 12px; font-weight: 600; color: var(--muted); flex: 1; }
.fx-row { display: flex; gap: 12px; }
.fx-error { color: var(--danger); font-size: 13px; min-height: 18px; }
.fx-actions { display: flex; justify-content: flex-end; gap: 8px; }
textarea.text-input { font-family: var(--font-body); resize: vertical; }