:root{--primary:#4f46e5;--primary-hover:#4338ca;--secondary:#f3f4f6;--secondary-hover:#e5e7eb;--text:#111827;--text-light:#6b7280;--border:#e5e7eb;--bg-light:#f9fafb;--error:#ef4444;--success:#10b981;--warning:#f59e0b}*{box-sizing:border-box;margin:0;padding:0}.containert{max-width:1200px;margin:100px auto;background:white;border-radius:16px;box-shadow:0 4px 20px rgba(0,0,0,0.1);overflow:hidden}.header-t{padding:24px;border-bottom:1px solid var(--border);text-align:center}.header-t h1{font-size:2rem;margin-bottom:8px;color:var(--primary);text-align:center}.header-t p{color:var(--text-light);text-align:center;max-width:80%;margin-left:auto;margin-right:auto}.upload-section{text-align:center;padding:60px 40px;border:2px dashed var(--border);border-radius:16px;background-color:var(--bg-light);transition:all .3s ease;margin:24px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center}.upload-section:hover{border-color:var(--primary);background-color:rgba(79,70,229,0.03)}.upload-section.drag-over{border-color:var(--primary);background-color:rgba(79,70,229,0.1);transform:scale(1.01)}.upload-icon{font-size:64px;color:var(--primary);margin-bottom:20px;display:block}.upload-text{font-size:1.25rem;color:var(--text);margin-bottom:8px;font-weight:500;text-align:center}.upload-hint{font-size:.9rem;color:var(--text-light);margin-bottom:20px;text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s ease;border:0;font-size:1rem;gap:8px}.btn-primary{background-color:var(--primary);color:white}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-2px)}.btn-secondary{background-color:var(--secondary);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background-color:var(--secondary-hover);transform:translateY(-2px)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.loading{text-align:center;padding:60px;color:var(--primary)}.loading i{font-size:48px;margin-bottom:16px}.editor-container{display:none;padding:24px}.toolbar{display:flex;flex-wrap:wrap;gap:16px;padding:16px;background:var(--bg-light);border-radius:12px;margin-bottom:20px;border:1px solid var(--border)}.tool-group{display:flex;gap:8px;align-items:center;padding:0 12px;border-right:1px solid var(--border)}.tool-group:last-child{border-right:0}.tool-btn{width:40px;height:40px;border:1px solid var(--border);border-radius:8px;background:white;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--text)}.tool-btn:hover{background:var(--primary);color:white;border-color:var(--primary);transform:translateY(-2px)}.tool-btn.active{background:var(--primary);color:white;border-color:var(--primary)}#elementColor{width:40px;height:40px;border:2px solid var(--border);border-radius:8px;cursor:pointer}#elementSize{width:100px}#sizeValue{font-size:12px;color:var(--text-light);min-width:35px}.canvas-area{background:#525659;border-radius:12px;overflow:auto;min-height:500px;position:relative}.canvas-wrapper{position:relative;margin:20px auto;display:inline-block;left:50%;transform:translateX(-50%)}#pdfCanvas{display:block;box-shadow:0 2px 10px rgba(0,0,0,0.2)}#elementsContainer{position:absolute;top:0;left:0;pointer-events:none}.editable-element{position:absolute;cursor:move;pointer-events:auto;user-select:none}.editable-element.selected{outline:2px solid var(--primary);outline-offset:2px}.resize-handle{position:absolute;width:10px;height:10px;background:var(--primary);border:2px solid white;border-radius:50%;cursor:nw-resize;z-index:10}.resize-handle.nw{top:-5px;left:-5px;cursor:nw-resize}.resize-handle.ne{top:-5px;right:-5px;cursor:ne-resize}.resize-handle.sw{bottom:-5px;left:-5px;cursor:sw-resize}.resize-handle.se{bottom:-5px;right:-5px;cursor:se-resize}.text-element{min-width:100px;min-height:40px;background:transparent;font-family:Arial,sans-serif;white-space:nowrap}.text-element.editing{white-space:normal;background:white;border:1px dashed var(--primary);outline:0}.shape-element{display:block}.page-nav{display:flex;justify-content:center;align-items:center;gap:16px;padding:20px;border-top:1px solid var(--border);margin-top:20px}.page-nav span{font-size:14px;color:var(--text)}.action-buttons{display:flex;justify-content:center;gap:16px;padding:20px;border-top:1px solid var(--border);margin-top:20px}.toast{position:fixed;bottom:20px;right:20px;padding:12px 24px;border-radius:8px;background:var(--primary);color:white;z-index:1000;animation:slideIn .3s ease}.toast.success{background:var(--success)}.toast.error{background:var(--error)}@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}.how-to-section-wrapper{max-width:1200px;margin:40px auto;padding:0 20px}.how-to-section-wrapper h2{text-align:center;font-size:2rem;margin-bottom:40px;color:#333}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.step-card{background:white;padding:30px;border-radius:12px;border:1px solid var(--border);text-align:center;transition:transform .3s ease}.step-card:hover{transform:translateY(-5px)}.step-number{width:50px;height:50px;background:var(--primary);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:bold;margin:0 auto 20px}.content-wrapper{max-width:1200px;margin:40px auto;padding:20px;line-height:1.6;color:#333}.content-wrapper h2{font-size:2rem;color:var(--primary);margin-top:40px;margin-bottom:20px}.content-wrapper h3{font-size:1.3rem;margin-top:30px;margin-bottom:15px}.content-wrapper ul{list-style:none;padding:0}.content-wrapper ul li{padding:10px 0;display:flex;align-items:center;gap:12px}.content-wrapper ul li i{width:24px;color:var(--primary)}.content-wrapper a{color:var(--primary);text-decoration:none}.content-wrapper a:hover{text-decoration:underline}@media(max-width:768px){.containert{margin:20px;border-radius:12px}.toolbar{flex-direction:column}.tool-group{border-right:0;border-bottom:1px solid var(--border);padding-bottom:12px}.steps-grid{grid-template-columns:1fr}.action-buttons{flex-direction:column}.btn{width:100%;justify-content:center}.page-nav{flex-wrap:wrap}.header-t p{max-width:95%}.upload-section{padding:40px 24px;margin:16px}}@media(max-width:480px){.header-t h1{font-size:1.5rem}.upload-icon{font-size:48px}}@media(prefers-color-scheme:dark){:root{--primary:#6366f1;--secondary:#374151;--text:#f9fafb;--text-light:#9ca3af;--border:#4b5563;--bg-light:#1f2937}body{background-color:#111827}.containert{background:#1f2937}.step-card{background:#1f2937;border-color:#374151}.step-card h3{color:#f9fafb}.step-card p{color:#9ca3af}.content-wrapper{color:#e5e7eb}.tool-btn{background:#1f2937}}