.builder-container{flex-direction:column;height:100vh;min-height:0;display:flex}.fb-header{z-index:10;background:#fff;border-bottom:1px solid rgba(0,0,0,.08);border-radius:16px;justify-content:space-between;align-items:center;height:64px;margin:8px;padding:0 24px;display:flex;position:-webkit-sticky;position:sticky;top:0}.dark .fb-header{background:var(--fb-panel-bg);border-color:var(--fb-border)}:root{--fb-border:rgba(148,163,184,.35);--fb-panel-bg:rgba(15,23,42,.72);--fb-muted:rgba(255,255,255,.06);--fb-text:rgba(255,255,255,.88);--fb-grid-dot:rgba(148,163,184,.45)}.dark{--fb-grid-dot:rgba(255,255,255,.16)}.canvas-area{background-image:radial-gradient(var(--fb-grid-dot)1px,transparent 1px);background-size:20px 20px;min-height:100%}.fb-canvas-card{background:#fff;border-radius:16px;min-height:600px;padding:32px;box-shadow:0 1px 2px rgba(0,0,0,.06)}.dark .fb-canvas-card{border:1px solid var(--fb-border);background:rgba(255,255,255,.04)}.fb-empty{color:rgba(148,163,184,.9);text-align:center;border:2px dashed rgba(148,163,184,.35);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;height:100%;padding:80px 12px;display:flex}.field-card{border:1px solid transparent;transition:all .2s}.field-card:hover{border-color:var(--mySecondary);box-shadow:0 4px 6px -1px rgba(0,0,0,.1)}.field-card.selected{border-color:var(--myPrimary);box-shadow:0 0 0 2px var(--myPrimary)}