*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f0f2f5;--surface: #ffffff;--border: #e2e8f0;--text: #1a202c;--text-muted: #718096;--primary: #4f46e5;--primary-hover: #4338ca;--danger: #e53e3e;--danger-hover: #c53030;--success: #38a169;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);--radius: 10px}body{font-family:Inter,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.header{background:var(--text);color:#fff;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10}.header h1{font-size:1.1rem;font-weight:700;letter-spacing:-.3px}.header h1 span{color:#a5b4fc}.main{max-width:1200px;margin:0 auto;padding:28px 20px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:8px;border:none;font-size:.875rem;font-weight:500;cursor:pointer;transition:background .15s,transform .1s;text-decoration:none}.btn:active{transform:scale(.97)}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border)}.btn-ghost:hover{background:var(--bg);color:var(--text)}.btn-sm{padding:5px 11px;font-size:.8rem}.btn:disabled{opacity:.5;cursor:not-allowed}.qr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.qr-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:box-shadow .2s}.qr-card:hover{box-shadow:var(--shadow-md)}.qr-card-image{background:#f8fafc;display:flex;align-items:center;justify-content:center;padding:20px;cursor:pointer;border-bottom:1px solid var(--border);min-height:200px}.qr-card-image img{max-width:160px;width:100%}.qr-card-image .placeholder{width:160px;height:160px;background:#e2e8f0;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:2.5rem}.qr-card-body{padding:16px}.qr-card-name{font-weight:600;font-size:1rem;margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.qr-card-url{font-size:.8rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:10px}.qr-card-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.qr-card-clicks{font-size:.78rem;background:#eef2ff;color:var(--primary);padding:3px 8px;border-radius:99px;font-weight:500}.qr-card-code{font-size:.75rem;color:var(--text-muted);font-family:monospace}.qr-card-actions{display:flex;gap:8px}.empty-state{text-align:center;padding:80px 20px;color:var(--text-muted)}.empty-state .icon{font-size:4rem;margin-bottom:16px}.empty-state h2{font-size:1.25rem;color:var(--text);margin-bottom:8px}.empty-state p{margin-bottom:24px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}.modal{background:var(--surface);border-radius:14px;width:100%;max-width:560px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0003}.modal-header{padding:20px 24px 0;display:flex;align-items:center;justify-content:space-between}.modal-header h2{font-size:1.1rem;font-weight:700}.modal-close{background:none;border:none;cursor:pointer;font-size:1.3rem;color:var(--text-muted);padding:4px;border-radius:6px}.modal-close:hover{background:var(--bg)}.modal-body{padding:20px 24px 24px}.form-group{margin-bottom:16px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}label{display:block;font-size:.82rem;font-weight:500;margin-bottom:5px;color:var(--text-muted)}input[type=text],input[type=url]{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;font-size:.9rem;font-family:inherit;transition:border-color .15s,box-shadow .15s;outline:none}input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51f}.input-color-row{display:flex;gap:8px;align-items:center}input[type=color]{width:40px;height:38px;border:1px solid var(--border);border-radius:8px;cursor:pointer;padding:2px}input[type=color]+input{flex:1}.logo-upload-area{border:2px dashed var(--border);border-radius:10px;padding:20px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}.logo-upload-area:hover{border-color:var(--primary);background:#eef2ff}.logo-upload-area input[type=file]{display:none}.logo-preview{display:flex;align-items:center;gap:12px;padding:10px;background:var(--bg);border-radius:8px;margin-top:10px}.logo-preview img{width:48px;height:48px;object-fit:contain;border-radius:6px}.logo-preview span{font-size:.82rem;color:var(--text-muted);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.modal-footer{display:flex;gap:10px;justify-content:flex-end;padding:16px 24px;border-top:1px solid var(--border)}.toast-container{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:8px;z-index:200}.toast{background:var(--text);color:#fff;padding:12px 18px;border-radius:10px;font-size:.875rem;box-shadow:var(--shadow-md);animation:slide-in .2s ease}.toast.error{background:var(--danger)}.toast.success{background:var(--success)}@keyframes slide-in{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.confirm-dialog{background:var(--surface);border-radius:14px;padding:28px;max-width:360px;width:100%;box-shadow:0 20px 60px #0003;text-align:center}.confirm-dialog h3{margin-bottom:10px}.confirm-dialog p{color:var(--text-muted);font-size:.9rem;margin-bottom:24px}.confirm-dialog .actions{display:flex;gap:10px;justify-content:center}.spinner{width:20px;height:20px;border:2px solid #ffffff40;border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 480px){.form-row{grid-template-columns:1fr}.qr-card-actions{flex-wrap:wrap}}