/* ===== Workspace Layout (Dual-pane) ===== */
.workspace{display:flex;gap:24px;align-items:flex-start;margin-top:20px}
.workspace-panel{flex:0 0 340px;min-width:0;position:relative}
.workspace-preview{flex:1;min-width:0;position:sticky;top:80px;align-self:flex-start}

/* Panel Cards */
.panel-card{background:#fff;border:1px solid var(--g200);border-radius:var(--radius);padding:20px;margin-bottom:14px;box-shadow:var(--shadow);transition:box-shadow .2s}
.panel-card:hover{box-shadow:var(--shadow-md)}
.panel-card-title{font-size:13px;font-weight:700;color:var(--g900);margin-bottom:12px;display:flex;align-items:center;gap:6px}
.panel-card-title .badge{font-size:9px;background:var(--primary-light);color:var(--primary);padding:2px 8px;border-radius:10px;font-weight:600}

/* Upload Zone */
.up-zone{border:2px dashed var(--g300);border-radius:12px;padding:28px 16px;text-align:center;cursor:pointer;transition:all .25s;background:var(--g50);position:relative}
.up-zone:hover,.up-zone.dragover{border-color:var(--primary);background:var(--primary-light);transform:scale(1.01)}
.up-zone.has-file{border-style:solid;border-color:var(--g200);padding:12px 16px;cursor:default;background:#fff}
.up-zone.has-file:hover{transform:none}
.up-icon{font-size:32px;margin-bottom:6px}
.up-text{font-size:13px;color:var(--g500)}.up-text strong{color:var(--primary)}
.up-sub{font-size:11px;color:var(--g400);margin-top:4px}
.file-input{display:none}

.uploaded-info{display:flex;align-items:center;gap:10px;width:100%}
.uploaded-thumb{width:36px;height:36px;border-radius:6px;object-fit:cover;border:1px solid var(--g200);flex-shrink:0}
.uploaded-name{font-size:12px;font-weight:600;color:var(--g900);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.uploaded-size{font-size:10px;color:var(--g400)}
.uploaded-change{font-size:10px;color:var(--primary);cursor:pointer;font-weight:600;flex-shrink:0}

/* Input Groups */
.opt-group{margin-bottom:14px}
.opt-label{font-size:12px;font-weight:600;color:var(--g700);margin-bottom:5px;display:block}
.opt-row{display:flex;gap:8px;align-items:center}
.opt-field{flex:1;border:1.5px solid var(--g200);border-radius:8px;padding:10px 12px;font-size:15px;font-family:inherit;outline:none;transition:.2s;text-align:center;width:0}
.opt-field:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.opt-sep{font-size:14px;color:var(--g400)}
.opt-hint{font-size:10px;color:var(--g400);margin-top:3px;text-align:center}
.toggle-row{display:flex;gap:12px;flex-wrap:wrap}
.toggle-label{font-size:12px;color:var(--g700);display:flex;align-items:center;gap:5px;cursor:pointer;user-select:none}
.toggle-label input{width:15px;height:15px;cursor:pointer;accent-color:var(--primary)}
.preset-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.preset-btn{padding:7px 4px;border:1px solid var(--g200);border-radius:8px;font-size:11px;font-weight:600;cursor:pointer;background:#fff;font-family:inherit;color:var(--g600);transition:all .15s;text-align:center}
.preset-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);transform:translateY(-1px)}
.preset-btn:active{transform:scale(.95)}
.preset-btn.active{border-color:var(--primary);background:var(--primary);color:#fff}

/* Color / Format */
.color-row{display:flex;gap:8px;align-items:center}
.color-swatch{width:32px;height:32px;border-radius:8px;border:2px solid var(--g200);cursor:pointer;padding:0;overflow:hidden}
.color-presets{display:flex;gap:4px;flex-wrap:wrap}
.cp-btn{width:22px;height:22px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:.15s;padding:0}
.cp-btn:hover{border-color:var(--g400);transform:scale(1.15)}
.cp-btn.active{border-color:var(--primary)}
.fmt-row{display:flex;gap:6px}
.fmt-btn{flex:1;padding:8px 6px;border:1.5px solid var(--g200);border-radius:8px;font-size:11px;font-weight:600;cursor:pointer;text-align:center;background:#fff;font-family:inherit;color:var(--g600);transition:.15s}
.fmt-btn:hover{border-color:var(--primary);color:var(--primary)}
.fmt-btn.active{border-color:var(--primary);background:var(--primary);color:#fff}

/* Action Button */
.ws-btn{width:100%;padding:14px;border:none;border-radius:10px;font-size:15px;font-weight:700;cursor:pointer;font-family:inherit;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px}
.ws-btn.primary{background:var(--primary);color:#fff}
.ws-btn.primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px rgba(37,99,235,.3)}
.ws-btn.primary:active{transform:scale(.98)}
.ws-btn.primary:disabled{background:var(--g300);cursor:not-allowed;transform:none;box-shadow:none}

/* Preview Canvas */
.preview-card{background:#fff;border:1px solid var(--g200);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md)}
.preview-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--g200)}
.preview-title{font-size:12px;font-weight:600;color:var(--g700);display:flex;align-items:center;gap:6px}
.preview-title .dot{width:8px;height:8px;border-radius:50%;background:#22C55E;display:inline-block}
.preview-meta{font-size:10px;color:var(--g400)}
.preview-body{display:flex;align-items:center;justify-content:center;min-height:320px;padding:16px;background:var(--g50);position:relative}
.preview-body.has-bg{padding:0}
.preview-canvas{max-width:100%;max-height:480px;border-radius:6px;box-shadow:0 1px 6px rgba(0,0,0,.08);transition:opacity .3s;display:block}
.preview-canvas.loading{opacity:.4}
.preview-placeholder{text-align:center;padding:40px 20px;color:var(--g400)}
.preview-placeholder .ph-icon{font-size:48px;margin-bottom:10px}
.preview-placeholder .ph-text{font-size:13px}
.preview-info{display:grid;grid-template-columns:1fr 1fr 1fr;border-top:1px solid var(--g200)}
.preview-info-item{text-align:center;padding:10px 8px;border-right:1px solid var(--g200)}
.preview-info-item:last-child{border-right:none}
.pi-label{font-size:10px;color:var(--g400);font-weight:600}
.pi-value{font-size:14px;font-weight:800;color:var(--g900);margin-top:2px}
.dl-bar{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--g200)}
.dl-btn{flex:1;padding:10px;border:none;border-radius:8px;font-size:12px;font-weight:600;cursor:pointer;font-family:inherit;transition:.15s;display:flex;align-items:center;justify-content:center;gap:6px}
.dl-btn.primary{background:var(--primary);color:#fff}
.dl-btn.primary:hover{background:var(--primary-dark)}
.dl-btn.secondary{background:var(--g100);color:var(--g700);border:1px solid var(--g200)}
.dl-btn.secondary:hover{background:var(--g200)}
.spinner-overlay{display:none;position:absolute;inset:0;background:rgba(255,255,255,.7);border-radius:var(--radius);align-items:center;justify-content:center;z-index:5}
.spinner-overlay.active{display:flex}
.spinner-circle{width:30px;height:30px;border:3px solid var(--g200);border-top-color:var(--primary);border-radius:50%;animation:ws-spin .7s linear infinite}
@keyframes ws-spin{to{transform:rotate(360deg)}}
.fade-enter{animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:860px){
  .workspace{flex-direction:column}
  .workspace-panel{flex:none;width:100%}
  .workspace-preview{position:static;width:100%}
  .preview-body{min-height:200px}
}
@media(max-width:480px){
  .preset-grid{grid-template-columns:repeat(2,1fr)}
  .preview-info{grid-template-columns:1fr}
}