*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--font: "Inter", system-ui, sans-serif;--bg-base: #0b0e1a;--bg-surface: #111827;--bg-panel: rgba(17, 24, 39, .85);--bg-card: rgba(255, 255, 255, .04);--bg-hover: rgba(255, 255, 255, .07);--border: rgba(255, 255, 255, .1);--border-focus: rgba(99, 179, 237, .6);--accent: #3b82f6;--accent-glow: rgba(59, 130, 246, .35);--accent-hover: #60a5fa;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--text-primary: #f0f4ff;--text-secondary: #9ba3b8;--text-muted: #5a6380;--radius-sm: 6px;--radius: 10px;--radius-lg: 16px;--radius-xl: 22px;--shadow-sm: 0 1px 3px rgba(0,0,0,.4);--shadow: 0 4px 16px rgba(0,0,0,.5);--shadow-lg: 0 8px 32px rgba(0,0,0,.7);--transition: .18s cubic-bezier(.4, 0, .2, 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h1{font-size:1.15rem;font-weight:700;letter-spacing:-.01em;color:var(--text-primary);white-space:nowrap}.app-header-subtitle{font-size:.8rem;color:var(--text-muted);margin-top:1px}.app-badge{margin-left:auto;padding:4px 10px;background:var(--accent-glow);border:1px solid var(--accent);border-radius:100px;font-size:.7rem;font-weight:600;color:var(--accent-hover);letter-spacing:.05em;text-transform:uppercase}.app-body{flex:1;display:grid;grid-template-columns:340px 1fr;gap:0;overflow:hidden}.sidebar{border-right:1px solid var(--border);overflow-y:auto;padding:24px 20px;display:flex;flex-direction:column;gap:20px;background:linear-gradient(180deg,#11182799,#0b0e1a66)}.preview-area{overflow-y:auto;padding:24px 28px;display:flex;flex-direction:column;gap:24px}.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);overflow:hidden}.panel-header{display:flex;align-items:center;gap:8px;padding:14px 16px;border-bottom:1px solid var(--border);background:#ffffff06}.panel-header-icon{width:28px;height:28px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;background:var(--bg-hover);color:var(--accent);flex-shrink:0}.panel-title{font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--text-secondary)}.panel-body{padding:16px;display:flex;flex-direction:column;gap:14px}.upload-zone{position:relative;min-height:160px;border:2px dashed var(--border);border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;cursor:pointer;transition:border-color var(--transition),background var(--transition),transform var(--transition);text-align:center;padding:20px;overflow:hidden}.upload-zone:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 50% 100%,var(--accent-glow) 0%,transparent 70%);opacity:0;transition:opacity var(--transition)}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--accent);background:#3b82f60f}.upload-zone:hover:before,.upload-zone.drag-over:before{opacity:1}.upload-zone.drag-over{transform:scale(1.01)}.upload-zone-icon{width:48px;height:48px;border-radius:50%;background:#3b82f626;display:flex;align-items:center;justify-content:center;color:var(--accent);position:relative;z-index:1;transition:background var(--transition),transform var(--transition)}.upload-zone:hover .upload-zone-icon{background:#3b82f640;transform:translateY(-2px)}.upload-zone-text{position:relative;z-index:1}.upload-zone-text strong{display:block;font-size:.9rem;font-weight:600;color:var(--text-primary)}.upload-zone-text span{font-size:.75rem;color:var(--text-muted)}.upload-zone input[type=file]{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}.upload-filename{font-size:.75rem;color:var(--success);display:flex;align-items:center;gap:6px;position:relative;z-index:1;font-weight:500}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:.74rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--text-secondary);display:flex;align-items:center;justify-content:space-between}.form-label-value{font-size:.78rem;font-weight:500;color:var(--accent-hover);text-transform:none;letter-spacing:0}select,input[type=number]{width:100%;padding:9px 12px;background:#ffffff0d;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:var(--font);font-size:.85rem;-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;transition:border-color var(--transition),background var(--transition),box-shadow 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0 3px var(--accent-glow);cursor:pointer;transition:transform var(--transition),box-shadow var(--transition),background var(--transition)}input[type=range]:hover::-webkit-slider-thumb{transform:scale(1.2);background:var(--accent-hover);box-shadow:0 0 0 5px var(--accent-glow)}.seg-group{display:flex;gap:4px;background:#0000004d;padding:3px;border-radius:var(--radius-sm);border:1px solid var(--border)}.seg-btn{flex:1;padding:6px 4px;background:transparent;border:none;border-radius:4px;font-family:var(--font);font-size:.72rem;font-weight:500;color:var(--text-muted);cursor:pointer;transition:background var(--transition),color var(--transition);white-space:nowrap}.seg-btn:hover{color:var(--text-secondary);background:var(--bg-hover)}.seg-btn.active{background:var(--accent);color:#fff;box-shadow:0 1px 6px var(--accent-glow)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 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.btn{flex:1}.banner{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--radius-sm);font-size:.8rem;font-weight:500;animation:slideDown .2s ease}.banner-error{background:#ef44441f;border:1px solid rgba(239,68,68,.3);color:#fca5a5}.banner-warning{background:#f59e0b1f;border:1px solid rgba(245,158,11,.3);color:#fcd34d}.banner-info{background:#3b82f61f;border:1px solid rgba(59,130,246,.3);color:#93c5fd}.banner-close{margin-left:auto;background:none;border:none;color:inherit;cursor:pointer;opacity:.6;font-size:1rem;line-height:1;padding:0 2px}.banner-close:hover{opacity:1}.preview-tabs{display:flex;gap:2px;padding:4px;background:#00000040;border-radius:var(--radius-sm);width:fit-content}.preview-tab{padding:6px 16px;border-radius:4px;font-size:.78rem;font-weight:500;cursor:pointer;background:none;border:none;font-family:var(--font);color:var(--text-muted);transition:background var(--transition),color var(--transition)}.preview-tab:hover{color:var(--text-secondary);background:var(--bg-hover)}.preview-tab.active{background:var(--accent);color:#fff}.preview-canvas-wrap{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);background:repeating-conic-gradient(rgba(255,255,255,.04) 0% 25%,transparent 0% 50%) 0 0 / 20px 20px;min-height:200px;display:flex;align-items:center;justify-content:center}.preview-canvas-wrap canvas,.preview-canvas-wrap img{max-width:100%;max-height:520px;display:block;border-radius:var(--radius-sm)}.preview-repeat-wrap{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);min-height:200px}.preview-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:60px 20px;color:var(--text-muted)}.preview-empty svg{opacity:.3}.preview-empty-text{font-size:.85rem;text-align:center}.spinner-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#0b0e1abf;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);gap:12px;border-radius:inherit;z-index:10}.spinner{width:36px;height:36px;border:3px solid rgba(255,255,255,.1);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}.spinner-text{font-size:.8rem;color:var(--text-secondary)}.preview-stats{display:flex;align-items:center;gap:20px;padding:10px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.75rem;color:var(--text-muted)}.preview-stat strong{color:var(--text-secondary);font-weight:600}.divider{height:1px;background:var(--border);margin:4px 0}@keyframes spin{to{transform:rotate(360deg)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.fade-in{animation:fadeIn .3s ease}@media(max-width:860px){.app-body{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--border)}}