:root{--primary: #5B57D1;--success: #22C55E;--danger: #EF4444;--text: #1F2937;--text-light: #6B7280;--border: #E5E7EB;--bg: #F9FAFB;--warning: #F59E0B}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;padding:20px}.app-container{max-width:1400px;margin:0 auto}.app-header{background:#fff;border-radius:12px;padding:20px 30px;margin-bottom:20px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 4px 6px #0000001a}.header-left{display:flex;align-items:center;gap:15px}.header-left h1{font-size:24px;color:var(--text)}.version{background:var(--bg);padding:4px 12px;border-radius:20px;font-size:12px;color:var(--text-light)}.header-right{display:flex;gap:10px}.main-layout{display:grid;grid-template-columns:1fr 350px;gap:20px}.card{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 6px #0000001a}.form-section{display:block;margin-bottom:30px;position:relative}.form-section h3{display:block;font-size:14px;font-weight:600;color:var(--text-light);text-transform:uppercase;margin-bottom:15px;letter-spacing:.5px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.form-group{display:flex;flex-direction:column}.form-group.full-width{grid-column:span 2}.form-group label{font-size:14px;font-weight:500;color:var(--text);margin-bottom:5px}.form-group input,.form-group select,.form-group textarea{padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;transition:border-color .2s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}textarea{resize:vertical;min-height:80px;font-family:inherit}textarea[data-field=notes]{width:100%;min-height:120px;line-height:1.5}.logo-section{margin-bottom:30px}.logo-upload{display:flex;align-items:center;gap:20px;padding:20px;background:var(--bg);border-radius:8px}.logo-preview{width:120px;height:120px;border:2px dashed var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;background:#fff;overflow:hidden;flex-shrink:0}.logo-preview:hover{border-color:var(--primary);background:#f8f8ff}.logo-preview img{max-width:100%;max-height:100%;object-fit:contain}.logo-placeholder{color:var(--text-light);font-size:14px;text-align:center;padding:10px;pointer-events:none}.logo-info{flex:1}.logo-info p{margin:5px 0;font-size:14px}.logo-info .text-muted{color:var(--text-light);font-size:12px}.field-status{font-size:12px;margin-top:4px}.field-status.valid{color:var(--success)}.field-status.invalid{color:var(--danger)}.items-table{overflow-x:auto}.items-table table{width:100%;border-collapse:collapse}.items-table th{text-align:left;padding:10px;background:var(--bg);font-size:13px;font-weight:600;color:var(--text-light);text-transform:uppercase}.items-table td{padding:10px;border-bottom:1px solid var(--border)}.items-table input{width:100%;padding:8px;border:1px solid var(--border);border-radius:4px}.item-amount{font-weight:600}.btn{padding:10px 20px;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:#4a47b0}.btn-success{background:var(--success);color:#fff}.btn-success:hover{background:#16a34a;transform:translateY(-1px);box-shadow:0 4px 12px #22c55e4d}.btn-outline{background:#fff;color:var(--text);border:1px solid var(--border)}.btn-outline:hover{background:var(--bg)}.btn-full{width:100%;margin-bottom:10px}.btn-sm{padding:6px 12px;font-size:12px}.btn-remove{background:var(--danger);color:#fff;border:none;width:24px;height:24px;border-radius:4px;cursor:pointer;font-size:18px;line-height:1}.totals-container{background:var(--bg);border-radius:8px;padding:20px;margin-top:20px}.total-row{display:flex;justify-content:space-between;padding:8px 0;font-size:15px}.total-row.total{font-size:18px;font-weight:700;color:var(--primary);border-top:2px solid var(--primary);margin-top:10px;padding-top:10px}.sidebar .card{position:sticky;top:20px}.sidebar h3{font-size:14px;font-weight:600;color:var(--text-light);text-transform:uppercase;margin:20px 0 15px}.sidebar h3:first-child{margin-top:0}.actions{margin-bottom:20px}.recent-list{max-height:300px;overflow-y:auto}.recent-invoice-item{padding:10px;background:var(--bg);border-radius:6px;margin-bottom:8px;cursor:pointer;transition:background .2s;display:flex;justify-content:space-between;align-items:center}.recent-invoice-item:hover{background:#e5e7eb}.invoice-item-content{flex:1}.btn-delete-invoice{background:transparent;color:var(--text-light);border:none;width:18px;height:18px;border-radius:3px;cursor:pointer;font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0;padding:0}.btn-delete-invoice:hover{background:var(--danger);color:#fff}.modal{display:none;position:fixed;inset:0;background:#00000080;z-index:1000}.modal-content{position:relative;background:#fff;width:90%;max-width:900px;height:90vh;margin:5vh auto;border-radius:12px;display:flex;flex-direction:column}.modal-header{padding:20px 30px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.modal-header h2{font-size:20px;color:var(--text)}.close-btn{background:none;border:none;font-size:30px;cursor:pointer;color:var(--text-light)}.modal-body{flex:1;overflow-y:auto;padding:30px}.invoice-preview{max-width:800px;margin:0 auto;font-family:Arial,sans-serif}.invoice-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:30px;padding-bottom:20px;border-bottom:2px solid var(--border)}.invoice-header-left{display:flex;align-items:center;gap:20px}.invoice-header-right{text-align:right}.invoice-logo{max-height:60px;max-width:150px;object-fit:contain}.invoice-header h1{font-size:32px;color:var(--text);margin:0}.invoice-number{font-size:20px;color:var(--primary);font-weight:600;margin-bottom:10px}.invoice-dates-preview{margin-top:10px}.invoice-dates-preview p{margin:5px 0;font-size:14px;color:var(--text-light)}.invoice-parties{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin:30px 0}.invoice-parties h3{font-size:14px;color:var(--text-light);margin-bottom:10px}.invoice-items{width:100%;border-collapse:collapse;margin-bottom:30px}.invoice-items th{background:var(--bg);padding:10px;text-align:left;font-size:13px;font-weight:600;color:var(--text-light);border-bottom:2px solid var(--border)}.invoice-items th:nth-child(2),.invoice-items th:nth-child(3),.invoice-items th:nth-child(4){text-align:right;width:100px}.invoice-items td{padding:12px 10px;border-bottom:1px solid var(--border);vertical-align:top}.invoice-totals{display:flex;justify-content:flex-end;margin:30px 0}.invoice-totals-container{width:300px}.invoice-totals .total-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;font-size:15px}.invoice-totals .total-row.subtotal{border-bottom:1px solid var(--border);padding-bottom:12px;margin-bottom:8px}.invoice-totals .total-row.total{font-size:18px;font-weight:700;color:var(--primary);border-top:2px solid var(--primary);padding-top:12px;margin-top:8px}.invoice-notes{background:var(--bg);border-radius:8px;padding:20px}.invoice-notes h3{font-size:14px;color:var(--text-light);margin-bottom:10px}.logo-preview *{pointer-events:none}.logo-preview{pointer-events:auto;position:relative;user-select:none}.logo-preview img{display:block;max-width:100%;max-height:100%;object-fit:contain;pointer-events:none}#logo-img{display:block!important}#remove-logo{margin-left:auto}.btn-outline.btn-sm{background:#fff;color:var(--text);border:1px solid var(--border);padding:6px 12px;font-size:12px}.btn-outline.btn-sm:hover{background:var(--bg)}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes slideOut{0%{transform:translate(0);opacity:1}to{transform:translate(100%);opacity:0}}@media print{body{background:#fff;margin:0;padding:0}.app-container{display:none}.modal{display:block!important;position:static;background:#fff}.modal-header,.close-btn{display:none}.modal-content{width:100%;height:auto;box-shadow:none}.invoice-preview{padding:20px;max-width:100%}.invoice-totals{page-break-inside:avoid}.invoice-notes{background:var(--bg);border-radius:8px;padding:20px;font-size:14px;line-height:1.5}}@media (max-width: 1024px){.main-layout{grid-template-columns:1fr}.sidebar{order:-1}.sidebar .card{position:relative;top:auto}}@media (max-width: 768px){body{padding:0;background:#f5f5f5;position:relative;min-height:100vh}.app-container{max-width:100%;width:100%;margin:0;padding:0}.app-header{border-radius:0;margin:0;padding:15px;width:100%;box-sizing:border-box;flex-direction:column;align-items:stretch;gap:12px;position:sticky;top:0;z-index:100}.header-left{justify-content:center;text-align:center;flex-wrap:wrap}.header-left h1{font-size:18px;width:100%}.version{margin:0 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0}.total-row{font-size:14px}.total-row.total{font-size:16px}.sidebar{order:-1;margin-bottom:10px}.sidebar .card{position:relative;top:auto}.sidebar h3{font-size:13px;margin:15px 0 10px}.btn{padding:12px 16px;font-size:14px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.btn-full{margin-bottom:8px}.btn-remove{width:28px;height:28px;font-size:20px}.recent-list{max-height:200px}.recent-invoice-item{padding:12px;margin-bottom:6px;font-size:14px}.modal-content{width:100%;height:100vh;margin:0;border-radius:0;max-width:100%}.modal-header{padding:15px;position:sticky;top:0;background:#fff;z-index:10}.modal-header h2{font-size:18px}.close-btn{font-size:28px;padding:0 5px}.modal-body{padding:15px}.invoice-preview{font-size:13px;padding:10px}.invoice-header{flex-direction:column;gap:15px}.invoice-header-left{flex-direction:column;align-items:flex-start}.invoice-header-right{text-align:left;width:100%}.invoice-header h1{font-size:24px}.invoice-number{font-size:18px}.invoice-parties{grid-template-columns:1fr;gap:20px}.invoice-items{font-size:12px}.invoice-items th,.invoice-items td{padding:8px 5px;font-size:11px}.invoice-totals{justify-content:stretch}.invoice-totals-container{width:100%}.invoice-notes{padding:13px}textarea{font-size:16px;width:100%}@supports (padding: env(safe-area-inset-top)){.app-header{padding-top:calc(15px + env(safe-area-inset-top))}.main-layout{padding-left:calc(10px + env(safe-area-inset-left));padding-right:calc(10px + env(safe-area-inset-right));padding-bottom:calc(10px + env(safe-area-inset-bottom))}}}@media (max-width: 480px){.header-left h1{font-size:16px}.header-right .btn{font-size:12px;padding:10px 6px}.form-section h3{font-size:12px}.btn{font-size:13px;padding:10px 12px}.invoice-header h1{font-size:20px}.invoice-number{font-size:16px}}@media (max-width: 768px){body{padding:0!important}.app-header{position:fixed!important;top:0!important;left:0!important;right:0!important;width:100%!important;margin:0!important;border-radius:0!important;z-index:1000!important}.app-container{padding-top:100px!important}}#taxName,#taxRate{width:100%}#taxLabel{transition:all .3s ease}@media (max-width: 768px){.form-section:has(#taxName) .form-grid{grid-template-columns:1fr 1fr;gap:10px}@media (max-width: 480px){.form-section:has(#taxName) .form-grid{grid-template-columns:1fr}}}.header-center{display:flex;align-items:center}.language-switcher{display:flex;gap:0;background:var(--bg);border-radius:6px;padding:2px}.lang-btn{padding:6px 16px;border:none;background:transparent;color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;border-radius:4px}.lang-btn:hover{background:#5b57d11a}.lang-btn.active{background:var(--primary);color:#fff}.app-header{display:flex;justify-content:space-between;align-items:center}.header-left{justify-self:start}.header-right{justify-self:end}@media (max-width: 768px){.app-header{flex-direction:column;gap:10px;align-items:stretch}.header-right{display:flex;justify-content:center}.language-switcher{margin:0 auto}}.sidebar-footer{margin-top:30px;padding-top:20px;border-top:1px solid var(--border);font-size:12px;color:var(--text-light);text-align:center}.info-item{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:10px;opacity:.85}.info-icon{font-size:16px;display:inline-flex;align-items:center}.info-text{font-size:13px;color:var(--text-light);line-height:1.2}.info-copyright{margin-top:20px;padding-top:15px;border-top:1px solid var(--border);text-align:center;font-size:11px;opacity:.7;color:var(--text-light)}.info-item:hover{opacity:1}@media (max-width: 768px){.sidebar-footer{margin-top:20px;padding-top:15px}.info-text{font-size:12px}}.form-section{border:1px solid var(--border);border-radius:10px;padding:18px;background:#fff}.form-section h3{margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border)}@media (max-width: 768px){.form-section{border-radius:8px;padding:14px}}.form-section{background:#f0f4f8;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 2px 6px #0000000f;border:none}.form-section h3{margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid rgba(0,0,0,.08);font-size:1.1rem;font-weight:600;color:#333}@media (max-width: 768px){.form-section{padding:16px;border-radius:10px;margin-bottom:16px}}