:root{--copper:#B87333;--copper-light:#D4A574;--copper-pale:#F5EFE6;--slate:#2F3640;--slate-mid:#3D4654;--cream:#F5F0EB;--white:#FFFFFF;--border:#E2D9CE;--border-dark:#C8B8A0;--text-primary:#1E2530;--text-secondary:#5A6475;--text-muted:#8A95A3;--success:#2D7A4F;--danger:#C0392B;--inv-accent:#B87333;--inv-accent2:#2F3640;--inv-header-bg:#2F3640;--inv-header-text:#FFFFFF;--inv-table-head:#B87333;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--shadow-lg:0 8px 32px rgba(0,0,0,0.14);--transition:0.18s ease}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:15px}
body{font-family:'Synonym',sans-serif;background:#EDEAE5;color:var(--text-primary);min-height:100vh;overflow:hidden}
.topbar{position:fixed;top:0;left:0;right:0;z-index:100;height:56px;background:var(--slate);display:flex;align-items:center;justify-content:space-between;padding:0 24px;box-shadow:0 2px 12px rgba(0,0,0,0.18)}
.topbar-brand{display:flex;align-items:center;gap:10px}
.brand-icon{font-size:22px;color:var(--copper)}
.brand-name{font-family:'Gambetta',serif;font-size:1.25rem;font-weight:500;color:var(--white)}
.brand-name em{color:var(--copper);font-style:italic}
.topbar-actions{display:flex;align-items:center;gap:10px}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,0.2);color:rgba(255,255,255,0.75);padding:7px 16px;border-radius:var(--radius-sm);font-family:'Synonym',sans-serif;font-size:0.85rem;font-weight:500;cursor:pointer;transition:all var(--transition)}
.btn-ghost:hover{background:rgba(255,255,255,0.08);color:var(--white)}
.btn-primary{background:var(--copper);border:none;color:var(--white);padding:8px 18px;border-radius:var(--radius-sm);font-family:'Synonym',sans-serif;font-size:0.85rem;font-weight:600;cursor:pointer;transition:all var(--transition);display:flex;align-items:center;gap:7px}
.btn-primary:hover{background:#A0632A;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.app-layout{display:grid;grid-template-columns:420px 1fr;height:calc(100vh - 56px);margin-top:56px}
.panel{overflow:hidden}
.panel-form{background:var(--white);border-right:1px solid var(--border);display:flex;flex-direction:column}
.panel-scroll{overflow-y:auto;flex:1;padding:20px 20px 40px;scrollbar-width:thin}
.panel-scroll::-webkit-scrollbar{width:5px}
.panel-scroll::-webkit-scrollbar-thumb{background:var(--border-dark);border-radius:3px}
.ai-banner{display:flex;align-items:center;gap:10px;background:linear-gradient(135deg,#FFF8F0,#FFF3E6);border:1px solid #F0D9BC;border-radius:var(--radius-md);padding:10px 14px;margin-bottom:20px;font-size:0.8rem;font-weight:500;color:#7A4A1A}
.ai-dot{width:8px;height:8px;border-radius:50%;background:var(--copper);animation:pulse 2s infinite;flex-shrink:0}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px rgba(184,115,51,0.25)}50%{box-shadow:0 0 0 6px rgba(184,115,51,0.1)}}
.form-section{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.form-section:last-child{border-bottom:none;margin-bottom:0}
.section-label{font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:0.1em;color:var(--text-muted);margin-bottom:14px}
.section-header-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.section-header-row .section-label{margin-bottom:0}
.field-group{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.field{display:flex;flex-direction:column;gap:5px}
.field-full{grid-column:1/-1}
label{font-size:0.75rem;font-weight:600;color:var(--text-secondary)}
.label-hint{font-weight:400;color:var(--text-muted)}
input[type=text],input[type=email],input[type=tel],input[type=url],input[type=date],input[type=number],select,textarea{width:100%;padding:8px 11px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-family:'Synonym',sans-serif;font-size:0.85rem;color:var(--text-primary);background:var(--cream);outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--copper);box-shadow:0 0 0 3px rgba(184,115,51,0.12);background:var(--white)}
textarea{resize:vertical;min-height:60px}
select{cursor:pointer;appearance:none;padding-right:30px}
.btn-add-item{display:flex;align-items:center;gap:6px;background:var(--copper-pale);border:1.5px dashed var(--copper-light);color:var(--copper);padding:6px 14px;border-radius:var(--radius-sm);font-size:0.8rem;font-weight:600;cursor:pointer}
.btn-add-item:hover{background:#EDD9C0;border-style:solid}
.ai-suggestions{display:flex;align-items:flex-start;gap:8px;flex-wrap:wrap;background:#FAFAF8;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;margin-bottom:12px;min-height:42px}
.ai-chip-label{font-size:0.72rem;font-weight:600;color:var(--copper);white-space:nowrap}
.ai-chips{display:flex;flex-wrap:wrap;gap:6px}
.ai-chip{background:var(--white);border:1px solid var(--border-dark);color:var(--text-secondary);padding:3px 10px;border-radius:20px;font-size:0.75rem;cursor:pointer}
.ai-chip:hover{background:var(--copper);border-color:var(--copper);color:var(--white)}
.items-table-header{display:grid;grid-template-columns:1fr 60px 80px 80px 32px;gap:6px;padding:6px 8px;background:var(--slate);border-radius:var(--radius-sm) var(--radius-sm) 0 0;font-size:0.68rem;font-weight:700;text-transform:uppercase;color:rgba(255,255,255,0.7)}
.line-item-row{display:grid;grid-template-columns:1fr 60px 80px 80px 32px;gap:6px;padding:6px 8px;background:var(--cream);border:1px solid var(--border);border-top:none;align-items:center}
.line-item-row:hover{background:#F0EBE3}
.line-item-row input{padding:5px 7px;font-size:0.82rem;background:var(--white)}
.line-item-row .item-amount{font-size:0.82rem;font-weight:600;text-align:right;padding:5px 7px}
.btn-remove-item{background:none;border:none;color:var(--text-muted);cursor:pointer;width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:4px;font-size:16px}
.btn-remove-item:hover{background:#FFE8E8;color:var(--danger)}
.btn-ai-desc{background:none;border:none;color:var(--copper);cursor:pointer;font-size:0.7rem;font-weight:600;text-decoration:underline}
.theme-picker{display:flex;gap:10px;flex-wrap:wrap}
.theme-swatch{display:flex;border-radius:8px;overflow:hidden;width:44px;height:28px;border:2px solid transparent;cursor:pointer;padding:0}
.theme-swatch span{flex:1;display:block}
.theme-swatch.active{border-color:var(--copper);box-shadow:0 0 0 2px rgba(184,115,51,0.3)}
.theme-swatch:hover{transform:scale(1.08)}
.panel-preview{background:#D8D3CC;display:flex;flex-direction:column}
.preview-toolbar{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;background:var(--slate-mid)}
.preview-label{font-size:0.75rem;font-weight:600;text-transform:uppercase;color:rgba(255,255,255,0.5)}
.preview-zoom{display:flex;align-items:center;gap:10px}
.zoom-btn{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.15);color:rgba(255,255,255,0.7);width:28px;height:28px;border-radius:4px;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center}
#zoom-level{font-size:0.78rem;color:rgba(255,255,255,0.6);min-width:40px;text-align:center}
.preview-viewport{flex:1;overflow:auto;padding:32px;display:flex;justify-content:center;align-items:flex-start}
.preview-scale-wrapper{transform-origin:top center;transition:transform 0.2s ease}
.invoice-doc{width:794px;min-height:1123px;background:var(--white);box-shadow:0 8px 40px rgba(0,0,0,0.18);border-radius:4px;overflow:hidden}
.inv-header{background:var(--inv-header-bg);padding:40px 48px 36px;display:flex;justify-content:space-between;align-items:flex-start;gap:24px}
.inv-brand{display:flex;align-items:flex-start;gap:16px;flex:1}
.inv-logo{max-height:56px;max-width:160px;object-fit:contain}
.inv-logo.hidden{display:none}
.inv-biz-name{font-family:'Gambetta',serif;font-size:1.5rem;font-weight:500;color:var(--inv-header-text);line-height:1.2;margin-bottom:6px}
.inv-biz-contact,.inv-biz-address{font-size:0.8rem;color:rgba(255,255,255,0.65);line-height:1.5}
.inv-meta-block{text-align:right;flex-shrink:0}
.inv-title-row{display:flex;flex-direction:column;align-items:flex-end;margin-bottom:16px}
.inv-title-word{font-family:'Gambetta',serif;font-size:2.2rem;font-weight:300;letter-spacing:0.15em;color:var(--inv-accent)}
.inv-number{font-size:0.85rem;font-weight:600;color:rgba(255,255,255,0.55);margin-top:4px}
.inv-meta-grid{display:grid;grid-template-columns:auto auto;gap:4px 16px;text-align:right}
.meta-key{font-size:0.7rem;font-weight:600;text-transform:uppercase;color:rgba(255,255,255,0.4);text-align:right}
.meta-val{font-size:0.82rem;font-weight:500;color:rgba(255,255,255,0.85);text-align:right}
.inv-divider{height:4px;background:linear-gradient(90deg,var(--inv-accent),var(--inv-accent2))}
.inv-bill-section{display:flex;justify-content:space-between;align-items:flex-start;padding:32px 48px 28px;border-bottom:1px solid #F0EBE3}
.bill-label{display:block;font-size:0.65rem;font-weight:700;text-transform:uppercase;color:var(--inv-accent);margin-bottom:8px}
.bill-name{font-family:'Gambetta',serif;font-size:1.1rem;font-weight:500;color:var(--text-primary);margin-bottom:4px}
.bill-detail{font-size:0.82rem;color:var(--text-secondary);line-height:1.5}
.inv-amount-due{text-align:right}
.amount-label{display:block;font-size:0.65rem;font-weight:700;text-transform:uppercase;color:var(--text-muted);margin-bottom:6px}
.amount-value{font-family:'Gambetta',serif;font-size:2rem;font-weight:500;color:var(--inv-accent)}
.inv-table-wrap{padding:0 48px}
.inv-table{width:100%;border-collapse:collapse;font-size:0.85rem}
.inv-table thead tr{background:var(--inv-table-head)}
.inv-table th{padding:10px 14px;font-size:0.68rem;font-weight:700;text-transform:uppercase;color:rgba(255,255,255,0.9);text-align:left}
.col-qty,.col-rate,.col-amount{text-align:right}
.inv-table tbody tr{border-bottom:1px solid #F0EBE3}
.inv-table tbody tr:nth-child(even){background:#FAFAF8}
.inv-table td{padding:11px 14px;color:var(--text-primary);vertical-align:top}
.inv-table td.col-qty,.inv-table td.col-rate,.inv-table td.col-amount{text-align:right}
.inv-table td.col-amount{font-weight:600}
.empty-row td{text-align:center;color:var(--text-muted);font-style:italic;padding:24px}
.inv-totals{display:flex;justify-content:flex-end;padding:20px 48px 24px}
.totals-spacer{flex:1}
.totals-block{min-width:260px}
.total-row{display:flex;justify-content:space-between;align-items:center;padding:7px 0;border-bottom:1px solid #F0EBE3;font-size:0.88rem;color:var(--text-secondary)}
.total-row:last-child{border-bottom:none}
.total-row span:last-child{font-weight:500}
.total-final{margin-top:8px;padding-top:12px!important;border-top:2px solid var(--inv-accent)!important;border-bottom:none!important;font-size:1.05rem!important;font-weight:700!important}
.total-final span:last-child{color:var(--inv-accent)!important;font-size:1.15rem}
.inv-footer-section{padding:0 48px 24px;display:flex;gap:32px}
.footer-label{display:block;font-size:0.65rem;font-weight:700;text-transform:uppercase;color:var(--inv-accent);margin-bottom:6px}
.inv-notes p,.inv-terms p{font-size:0.8rem;color:var(--text-secondary);line-height:1.6}
.inv-notes{flex:2}
.inv-terms{flex:1}
.inv-doc-footer{display:flex;justify-content:space-between;align-items:center;padding:14px 48px;background:var(--inv-header-bg);font-size:0.72rem;color:rgba(255,255,255,0.35)}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--slate);color:var(--white);padding:10px 22px;border-radius:24px;font-size:0.85rem;font-weight:500;opacity:0;pointer-events:none;transition:all 0.3s ease;z-index:999}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}
.modal-overlay{position:fixed;inset:0;z-index:200;background:rgba(15,20,30,0.6);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center}
.modal{background:var(--white);border-radius:var(--radius-lg);padding:28px 32px;width:520px;max-width:95vw;animation:modalIn 0.22s ease}
@keyframes modalIn{from{opacity:0;transform:scale(0.95)}to{opacity:1;transform:scale(1)}}
.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.modal-title{font-family:'Gambetta',serif;font-size:1.1rem;font-weight:500;color:var(--text-primary)}
.modal-close{background:none;border:none;cursor:pointer;color:var(--text-muted);font-size:16px;width:28px;height:28px;border-radius:4px;display:flex;align-items:center;justify-content:center}
.modal-close:hover{background:#F5F0EB}
.modal-subtitle{font-size:0.85rem;color:var(--text-secondary);margin-bottom:16px}
#ai-input{width:100%;padding:10px 12px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-family:'Synonym',sans-serif;font-size:0.88rem;resize:vertical;min-height:80px;background:var(--cream);outline:none}
#ai-input:focus{border-color:var(--copper)}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:14px}
.modal-actions .btn-ghost{border-color:var(--border);color:var(--text-secondary)}
.ai-result-label{font-size:0.75rem;font-weight:600;color:var(--text-muted);margin:16px 0 10px;text-transform:uppercase}
.ai-result-option{padding:10px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);margin-bottom:8px;cursor:pointer;font-size:0.85rem;color:var(--text-primary);line-height:1.5}
.ai-result-option:hover{border-color:var(--copper);background:var(--copper-pale)}
.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,0.3);border-top-color:var(--white);border-radius:50%;animation:spin 0.7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
body[data-theme=midnight]{--inv-header-bg:#1B0A3C;--inv-accent:#7B68EE;--inv-accent2:#3D1E7C;--inv-table-head:#3D1E7C}
body[data-theme=forest]{--inv-header-bg:#0A1F02;--inv-accent:#2D6A1E;--inv-accent2:#B8F369;--inv-table-head:#2D6A1E}
body[data-theme=noir]{--inv-header-bg:#0F0F0F;--inv-accent:#C8B8A0;--inv-accent2:#2A2A2A;--inv-table-head:#2A2A2A}
body[data-theme=rose]{--inv-header-bg:#4A1C2B;--inv-accent:#C9A87C;--inv-accent2:#7D3C50;--inv-table-head:#7D3C50}
@media(max-width:900px){.app-layout{grid-template-columns:1fr;height:auto}body{overflow:auto}.panel-preview{min-height:600px}.invoice-doc{width:100%;min-width:320px}}