.email-builder{display:grid;grid-template-columns:190px minmax(360px,1fr) 260px;gap:16px;margin-top:12px}.builder-sidebar,.builder-inspector{background:#f6f7f6;border:1px solid #dde2dc;border-radius:10px;padding:14px;align-self:start;position:sticky;top:16px}.builder-sidebar h3,.builder-inspector h3{margin-top:0}.builder-blocks{display:grid;grid-template-columns:1fr 1fr;gap:8px}.builder-blocks button{border:1px solid #d7ddd5;background:#fff;border-radius:7px;padding:9px 5px;cursor:grab;color:#2b2b2b}.builder-blocks button:hover{border-color:#3b8128;background:#f1f8ef}.builder-toolbar{display:flex;justify-content:space-between;gap:10px;margin-bottom:10px}.preview-switch{display:flex;gap:4px}.preview-switch button.active{background:#3b8128;color:#fff}.builder-canvas{min-height:360px;border:2px dashed #cbd3c8;border-radius:10px;background:#eef1ee;padding:14px}.builder-canvas.drag-over{border-color:#3b8128;background:#edf7ea}.email-builder-block{position:relative;background:#fff;border:2px solid transparent;border-radius:6px;margin:8px 0;padding:22px 44px;box-shadow:0 1px 3px #0001;cursor:pointer}.email-builder-block:hover,.email-builder-block.selected{border-color:#3b8128}.drag-handle{position:absolute;left:12px;top:12px;color:#969696;cursor:grab}.block-type{position:absolute;left:42px;top:6px;font-size:10px;text-transform:uppercase;color:#969696}.block-actions{position:absolute;right:7px;top:7px;display:flex;gap:3px}.block-actions button{border:0;background:#edf1ec;border-radius:4px;cursor:pointer}.block-sample img{max-height:140px}.sample-button{display:inline-block;background:#3b8128;color:#fff;padding:9px 16px;border-radius:5px}.sample-columns{display:grid;grid-template-columns:1fr 1fr;gap:10px}.sample-columns>span{border:1px dashed #ccd4ca;padding:6px}.image-placeholder{display:block;text-align:center;padding:28px;background:#f1f1f1;color:#969696}.builder-inspector label{display:block;margin:10px 0;font-size:13px}.builder-inspector input,.builder-inspector select,.builder-inspector textarea{display:block;width:100%;margin-top:5px}.builder-preview-shell{margin-top:18px;background:#dfe3df;border-radius:10px;padding:18px;text-align:center;overflow:auto}.builder-preview-shell iframe{width:100%;max-width:680px;height:660px;border:0;background:#fff;box-shadow:0 3px 16px #0002;transition:max-width .2s}.builder-preview-shell[data-size="mobile"] iframe{max-width:375px}.builder-help{font-size:12px;color:#707670;margin-top:12px}@media(max-width:1100px){.email-builder{grid-template-columns:170px 1fr}.builder-inspector{grid-column:1/-1;position:static}}@media(max-width:720px){.email-builder{grid-template-columns:1fr}.builder-sidebar,.builder-inspector{position:static}.builder-blocks{grid-template-columns:repeat(3,1fr)}}