.page-builder{display:flex;flex-direction:column;height:100vh;overflow:hidden}
.builder-topbar{display:flex;align-items:center;gap:16px;padding:0 16px;height:56px;
  background:rgba(10,10,10,.98);border-bottom:1px solid var(--border);
  position:relative;z-index:50;flex-shrink:0}
.builder-topbar .logo{margin-right:8px}
.project-info{flex:1;display:flex;align-items:baseline;gap:10px}
.project-name{font-size:16px;font-weight:800;color:var(--text)}
.project-meta{font-family:var(--font-mono);font-size:11px;color:var(--muted);
  background:var(--bg3);border:1px solid var(--border);padding:3px 8px;border-radius:100px}
.topbar-actions{display:flex;gap:10px}
.btn-validate{padding:9px 18px;background:var(--bg3);border:1px solid var(--border2);
  color:var(--text);border-radius:var(--radius);cursor:pointer;font-family:var(--font-display);
  font-weight:700;font-size:13px;transition:all .2s}
.btn-validate:hover{border-color:var(--amber);color:var(--amber)}
.btn-build{padding:9px 20px;background:var(--accent);color:#0a0a0a;border:none;
  border-radius:var(--radius);cursor:pointer;font-family:var(--font-display);
  font-weight:800;font-size:13px;transition:all .2s}
.btn-build:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(200,255,0,.3)}

.builder-layout{flex:1;display:grid;grid-template-columns:200px 1fr 240px;
  min-height:0;overflow:hidden}

/* PALETTE */
.palette{background:var(--bg2);border-right:1px solid var(--border);
  overflow-y:auto;padding:14px 10px}
.palette-title{font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);padding:4px 6px;margin-bottom:10px}
.palette-section{margin-bottom:16px}
.palette-section-label{font-size:10px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--muted2);padding:0 6px;margin-bottom:6px}
.module-item{display:flex;align-items:center;gap:10px;padding:9px 10px;
  border-radius:var(--radius);cursor:grab;transition:all .15s;
  border:1px solid transparent;user-select:none;margin-bottom:4px}
.module-item:hover{background:var(--bg3);border-color:var(--border)}
.module-item:active{cursor:grabbing;transform:scale(.97)}
.m-icon{font-size:16px;width:20px;text-align:center;flex-shrink:0}
.m-name{font-size:13px;font-weight:600;color:var(--text)}

/* CANVAS */
.canvas-area{position:relative;overflow:hidden;background:var(--bg);
  background-image:radial-gradient(circle,var(--border) 1px,transparent 1px);
  background-size:28px 28px;cursor:default}
.connections-svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1}
.nodes-layer{position:absolute;inset:0;z-index:2}
.canvas-empty{position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:10px;pointer-events:none;z-index:0}
.canvas-empty.hidden{display:none}
.empty-icon{font-size:48px;opacity:.3}
.empty-text{font-size:16px;font-weight:700;color:var(--muted);opacity:.6}
.empty-sub{font-size:13px;color:var(--muted2);opacity:.5}

/* NODES */
.node{position:absolute;background:var(--bg2);border:1px solid var(--border2);
  border-radius:var(--radius-lg);min-width:170px;cursor:move;user-select:none;
  transition:box-shadow .15s;overflow:hidden}
.node:hover{border-color:var(--border);box-shadow:0 4px 20px rgba(0,0,0,.5)}
.node.selected{border-color:var(--accent);box-shadow:0 0 0 2px rgba(200,255,0,.2),0 4px 24px rgba(0,0,0,.6)}
.node-top{height:4px;width:100%}
.node-body{padding:12px 14px}
.node-header{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.node-icon{font-size:18px}
.node-info{flex:1}
.node-label{font-size:13px;font-weight:700;color:var(--text);line-height:1.2}
.node-type{font-size:10px;color:var(--muted);font-family:var(--font-mono);text-transform:uppercase}
.node-ports{display:flex;justify-content:space-between;align-items:center;margin-top:10px;
  border-top:1px solid var(--border);padding-top:8px}
.port-group{display:flex;flex-direction:column;gap:5px}
.port-group.right{align-items:flex-end}
.port-row{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--muted);cursor:pointer}
.port-row:hover{color:var(--text)}
.port-dot{width:9px;height:9px;border-radius:50%;border:1.5px solid currentColor;
  flex-shrink:0;transition:all .15s}
.port-row.out .port-dot{background:currentColor}
.port-row:hover .port-dot{box-shadow:0 0 0 3px rgba(200,255,0,.25);border-color:var(--accent)}
.port-row.connecting .port-dot{border-color:var(--accent);background:var(--accent);
  box-shadow:0 0 0 4px rgba(200,255,0,.3)}
.node-delete{background:none;border:none;color:var(--muted2);cursor:pointer;
  font-size:14px;padding:2px 6px;border-radius:4px;transition:all .15s;opacity:0}
.node:hover .node-delete{opacity:1}
.node-delete:hover{color:var(--red);background:rgba(160,45,45,.15)}

/* CONNECTIONS */
.conn-path{fill:none;stroke-width:2;stroke-linecap:round;opacity:.7;transition:opacity .2s}
.conn-path:hover{opacity:1;stroke-width:2.5}
.conn-temp{fill:none;stroke:var(--accent);stroke-width:1.5;stroke-dasharray:6 4;opacity:.6}

/* INSPECTOR */
.inspector{background:var(--bg2);border-left:1px solid var(--border);
  overflow-y:auto;padding:16px}
.inspector-empty{display:flex;flex-direction:column;align-items:center;
  justify-content:center;height:200px;gap:10px}
.insp-icon{font-size:32px;opacity:.3}
.insp-text{font-size:13px;color:var(--muted);opacity:.6}
.insp-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;
  padding-bottom:14px;border-bottom:1px solid var(--border)}
.insp-icon-big{font-size:24px}
.insp-label-big{font-size:16px;font-weight:800;color:var(--text)}
.insp-type{font-size:11px;color:var(--muted);font-family:var(--font-mono)}
.field-group{margin-bottom:16px}
.field-label{font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  color:var(--muted);margin-bottom:6px}
.field-input{width:100%;background:var(--bg3);border:1px solid var(--border2);
  color:var(--text);padding:9px 12px;border-radius:var(--radius);
  font-family:var(--font-mono);font-size:13px;outline:none;transition:border .2s}
.field-input:focus{border-color:var(--accent)}
.field-select{width:100%;background:var(--bg3);border:1px solid var(--border2);
  color:var(--text);padding:9px 12px;border-radius:var(--radius);
  font-family:var(--font-display);font-size:13px;font-weight:600;
  outline:none;transition:border .2s;appearance:none;cursor:pointer}
.field-select:focus{border-color:var(--accent)}
.field-check{display:flex;align-items:center;gap:10px;cursor:pointer}
.field-check input{accent-color:var(--accent);width:16px;height:16px;cursor:pointer}
.field-check span{font-size:13px;color:var(--text)}
.insp-section-title{font-size:11px;font-weight:700;letter-spacing:.07em;
  text-transform:uppercase;color:var(--muted2);margin:20px 0 10px;
  padding-top:16px;border-top:1px solid var(--border)}

/* COLOR BAR PRESETS */
.color-preset{display:flex;gap:6px;flex-wrap:wrap}
.color-dot{width:22px;height:22px;border-radius:50%;cursor:pointer;
  border:2px solid transparent;transition:all .15s}
.color-dot:hover,.color-dot.active{border-color:var(--text);transform:scale(1.15)}