/* Step 4: star schema canvas. */

.dtools{display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.zoom{display:inline-flex;gap:2px;margin-left:4px}
.zoom .btn{min-width:30px}
.dtools-r{display:inline-flex;align-items:center;gap:6px;margin-left:auto}

.diagram{position:relative;display:grid;grid-template-columns:200px 1fr;height:calc(100vh - 290px);min-height:480px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}

/* left tray: unassigned columns + hidden boxes */
.tray{padding:10px 8px;overflow:auto;background:#fbfbfa;border-right:1px solid var(--line)}
.tray.drop{background:var(--warn-soft)}
.tray-hd{padding:0 4px 8px;font-size:12px;font-weight:500;color:var(--faint)}
.tray-hd .linkbtn{float:right}
.tray .nrow{margin-bottom:6px;background:var(--surface);border:1px solid var(--line);border-radius:6px}
.hidden-chip{display:flex;align-items:center;justify-content:space-between;width:100%;margin-bottom:6px;padding:5px 9px;border:1px dashed var(--line);border-radius:6px;background:var(--surface);font:600 12px var(--mono);text-align:left;cursor:pointer}
.hidden-chip:hover{background:var(--soft)}
.hidden-chip span{font:500 11px ui-sans-serif,-apple-system,sans-serif;color:var(--accent)}
.hidden-chip.fact{color:var(--fact)} .hidden-chip.dim{color:var(--dim)} .hidden-chip.bridge{color:var(--bridge)}

/* canvas */
.canvas-wrap{position:relative;overflow:auto;background:var(--surface)}
.sizer{position:relative}
.canvas{position:absolute;left:0;top:0;transform-origin:0 0;user-select:none;-webkit-user-select:none;background-color:var(--surface);background-image:radial-gradient(rgba(var(--ink-rgb),.16) 1px,transparent 1px);background-size:20px 20px}

/* connection lines */
svg.links{position:absolute;inset:0;pointer-events:none}
svg.links .vis{stroke:rgba(var(--ink-rgb),.3);stroke-width:1.5}
svg.links .hit{stroke:transparent;stroke-width:14;pointer-events:stroke;cursor:pointer}
svg.links .link:hover .vis{stroke:var(--accent)}
svg.links .blink .vis{stroke:var(--bridge);stroke-dasharray:5 4}
svg.links .temp{stroke:var(--accent);stroke-width:2;stroke-dasharray:6 5}
svg.links .del,svg.links .mkbridge{opacity:0;pointer-events:all;cursor:pointer;transition:opacity .12s}
svg.links .link:hover .del,svg.links .link:hover .mkbridge{opacity:1}
svg.links .del circle{fill:var(--surface);stroke:var(--fact-line);stroke-width:1.5}
svg.links .del text{fill:var(--fact);font:600 14px sans-serif;text-anchor:middle}
svg.links .mkbridge circle{fill:var(--surface);stroke:var(--bridge-line);stroke-width:1.5}
svg.links .mkbridge text{fill:var(--bridge);font:600 12px sans-serif;text-anchor:middle}

/* boxes */
.node{position:absolute;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:rgba(var(--shadow-rgb),.04) 0 0 0 1px,rgba(var(--shadow-rgb),.05) 0 3px 6px,rgba(var(--shadow-rgb),.08) 0 9px 24px}
.node.dragging{z-index:5;box-shadow:0 10px 30px rgba(28,40,56,.18)}
.node.drop{outline:3px solid var(--accent-soft);outline-offset:2px}
.node.fact{border-color:var(--fact)} .node.dim{border-color:var(--dim)} .node.bridge{border-color:var(--bridge);border-style:dashed}
.nhd{position:relative;padding:8px 58px 8px 12px;border-radius:7px 7px 0 0;background:#8a919c;color:#fff;cursor:grab}
.nhd:active{cursor:grabbing}
.node.fact .nhd{background:var(--fact)} .node.dim .nhd{background:var(--dim)} .node.bridge .nhd{background:var(--bridge)}
.nname{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font:600 13px var(--mono)}
.grain-tag{margin-top:1px;font-size:11px;opacity:.9}
.nbtns{position:absolute;right:4px;top:6px;display:flex;gap:2px;opacity:0;transition:opacity .1s}
.node:hover .nbtns{opacity:1}
.nhide{width:24px;height:22px;display:grid;place-items:center;border:0;border-radius:5px;background:transparent;color:#fff;opacity:.75;cursor:pointer}
.nhide:hover{opacity:1;background:rgba(255,255,255,.2)}

.nbody{padding:6px 0}
.nrow{display:flex;align-items:center;gap:8px;padding:3px 10px;font-size:12.5px}
.nrow.col{cursor:grab}
.nrow.col:hover{background:var(--soft)}
.nrow.ghost{opacity:.4}
.nrow.key{margin-bottom:2px;padding-bottom:4px;border-bottom:1px dashed var(--line);font:12px var(--mono);color:var(--muted)}
.nrow.key.opt{opacity:.6;font-style:italic;border-bottom:0}
.nrow .cname{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kcycle{display:inline-flex;cursor:pointer}
.kcycle:hover .kicon{outline:1.5px solid currentColor}
.ndel{padding:0 2px;border:0;background:none;color:var(--faint);font-size:14px;line-height:1;opacity:0;cursor:pointer}
.nrow.col:hover .ndel{opacity:1}
.ndel:hover{color:var(--fact)}
.ndel svg{width:12px;height:12px;display:block}
.nadd{padding:2px 6px 0}
.nadd-in{width:100%;padding:3px 6px;border:1px dashed transparent;border-radius:5px;background:transparent;font-size:12px}
.nadd-in::placeholder{color:var(--faint)}
.node:hover .nadd-in{border-color:var(--line)}
.nadd-in:focus{outline:none;border-color:var(--accent);border-style:solid;background:var(--surface)}
.nempty{padding:6px 12px;font-size:12px;color:var(--faint)}

/* drag handle for connecting */
.handle{position:absolute;right:-9px;top:50%;width:16px;height:16px;margin-top:-8px;border-radius:50%;background:var(--surface);border:2px solid currentColor;cursor:crosshair}
.node.fact .handle{color:var(--fact)} .node.dim .handle{color:var(--dim)} .node.bridge .handle{color:var(--bridge)}
.handle:hover{background:currentColor}

.toast{position:absolute;left:50%;bottom:16px;max-width:80%;padding:8px 14px;border-radius:6px;background:#2f3437;color:#fff;font-size:13px;opacity:0;pointer-events:none;transform:translateX(-50%) translateY(10px);transition:.2s}
.toast.show{opacity:1;transform:translateX(-50%)}

@media (max-width:720px){
  .diagram{grid-template-columns:1fr;grid-template-rows:auto 1fr}
  .tray{max-height:140px;border-right:0;border-bottom:1px solid var(--line)}
}
.cnote-dot{flex:none;font-size:10px;color:var(--faint);cursor:help;margin-left:auto}
.cnote-dot + .ndel{margin-left:2px}
.note-tip{position:fixed;z-index:120;max-width:280px;padding:6px 9px;border-radius:6px;background:#2f2f2f;color:#fff;font-size:12.5px;line-height:1.4;pointer-events:none;box-shadow:0 4px 14px rgba(0,0,0,.18)}
.nrow.col[data-note] .cname{text-decoration:underline dotted rgba(var(--ink-rgb),.35);text-underline-offset:3px}

/* Expand / collapse, floating at the canvas's top right */
.diag-full-btn{position:absolute;top:10px;right:10px;z-index:6;display:grid;place-items:center;width:32px;height:32px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--muted);box-shadow:0 1px 3px rgba(var(--shadow-rgb),.08);cursor:pointer}
.diag-full-btn:hover{color:var(--ink);border-color:var(--accent)}

/* Full page canvas (Expand): the toolbar and diagram fill the window, the rest of the page hides */
body.diag-full #view{position:fixed;inset:0;z-index:30;max-width:none;margin:0;padding:12px 16px;background:var(--surface);display:flex;flex-direction:column}
body.diag-full #view > :not(.dtools):not(.diagram){display:none}
body.diag-full .diagram{flex:1;height:auto;min-height:0}

/* Full warehouse: tables and columns outside the active deliverable, faded (diagram.js) */
.warehouse-toggle.on{color:var(--accent);background:var(--accent-soft)}
/* the box stays solid white so links don't show through it; only its contents fade */
.node.outside{border-color:var(--line);box-shadow:none}
.node.outside > *{opacity:.38}
.node.outside:hover > *{opacity:.75}
.nrow.col.elsewhere{opacity:.45}