:root{--bg:#f8f7f4;--surface:#fff;--text:#1a1a1a;--text-muted:#6b6b6b;--border:#e5e3de;--gold:#c5a572;--gold-dark:#a88a5a;--charcoal:#2c2c2c;--green:#4a7c59;--red:#c44545;--blue:#3b6fa0;--shadow:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-lg:0 4px 16px #00000014, 0 2px 6px #0000000a;--radius:10px;--radius-sm:6px;--max-width:1200px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}.app{flex-direction:column;min-height:100vh;display:flex}.main{max-width:var(--max-width);flex:1;width:100%;margin:0 auto;padding:24px 16px 48px}.header{background:var(--surface);border-bottom:1px solid var(--border);z-index:100;position:sticky;top:0}.header-inner{max-width:var(--max-width);align-items:center;gap:12px;height:56px;margin:0 auto;padding:0 16px;display:flex}.logo{align-items:center;gap:8px;font-size:17px;font-weight:700;display:flex}.logo-icon{font-size:22px}.logo-sub{color:var(--text-muted);font-size:13px;font-weight:400}.header-right{align-items:center;gap:16px;margin-left:auto;display:flex}.badge-demo{color:#856404;background:#fff3cd;border:1px solid #ffeaa7;border-radius:20px;padding:3px 10px;font-size:12px;font-weight:600}.header-link{color:var(--text-muted);font-size:14px}.header-link:hover{color:var(--text)}.nav{max-width:var(--max-width);gap:4px;margin:0 auto;padding:0 16px;display:flex;overflow-x:auto}.nav-item{white-space:nowrap;color:var(--text-muted);background:0 0;border:none;border-bottom:2px solid #0000;padding:8px 16px;font-size:14px;transition:all .15s}.nav-item:hover{color:var(--text)}.nav-item.active{color:var(--charcoal);border-bottom-color:var(--gold);font-weight:600}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-pad{padding:20px}.card-title{margin-bottom:16px;font-size:15px;font-weight:600}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px;display:grid}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.stat-label{color:var(--text-muted);font-size:13px;font-weight:500}.stat-value{margin-top:4px;font-size:28px;font-weight:700}.stat-value.green{color:var(--green)}.stat-value.red{color:var(--red)}.stat-value.gold{color:var(--gold-dark)}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}th{text-align:left;border-bottom:1px solid var(--border);color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;padding:10px 12px;font-size:13px;font-weight:600}td{border-bottom:1px solid var(--border);padding:12px}tr:hover td{background:#fafaf8}.status{border-radius:20px;padding:2px 10px;font-size:12px;font-weight:600;display:inline-block}.status-paid{color:#155724;background:#d4edda}.status-unpaid{color:#721c24;background:#f8d7da}.status-pending{color:#856404;background:#fff3cd}.btn{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);align-items:center;gap:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:all .15s;display:inline-flex}.btn:hover{border-color:var(--text-muted)}.btn-primary{background:var(--charcoal);color:#fff;border-color:var(--charcoal)}.btn-primary:hover{opacity:.9}.btn-gold{background:var(--gold);color:#fff;border-color:var(--gold)}.btn-gold:hover{background:var(--gold-dark)}.btn-sm{padding:5px 12px;font-size:13px}.btn-block{justify-content:center;width:100%}.form-group{margin-bottom:16px}.form-label{color:var(--text-muted);margin-bottom:4px;font-size:13px;font-weight:600;display:block}.form-input,.form-select,.form-textarea{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);width:100%;color:var(--text);padding:9px 12px;font-family:inherit;font-size:14px}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 2px #c5a57226}.form-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.search-bar{margin-bottom:16px;position:relative}.search-input{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);width:100%;padding:10px 12px 10px 38px;font-size:14px}.search-icon{color:var(--text-muted);font-size:16px;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.upgrade-banner{color:#fff;border-radius:var(--radius);background:linear-gradient(135deg,#2c2c2c,#1a1a1a);flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:24px;padding:20px 24px;display:flex}.upgrade-banner h3{font-size:16px;font-weight:700}.upgrade-banner p{color:#ccc;margin-top:2px;font-size:13px}.upgrade-banner .btn-gold{margin-left:auto}.invoice-detail{max-width:700px;margin:0 auto}.invoice-paper{border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);background:#fff;padding:32px}.invoice-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:32px;display:flex}.invoice-header h2{font-size:28px;font-weight:700}.invoice-meta{text-align:right;color:var(--text-muted);font-size:14px}.invoice-row{border-bottom:1px solid #f0f0f0;justify-content:space-between;padding:8px 0;display:flex}.invoice-row.total{border-top:2px solid var(--border);border-bottom:none;padding-top:12px;font-size:16px;font-weight:700}.mobile-nav{background:var(--surface);border-top:1px solid var(--border);z-index:100;justify-content:space-around;padding:8px 0;display:none;position:fixed;bottom:0;left:0;right:0}.mobile-nav-item{text-align:center;color:var(--text-muted);background:0 0;border:none;flex:1;padding:4px;font-size:11px}.mobile-nav-item.active{color:var(--gold);font-weight:600}.mobile-nav-item span{margin-bottom:2px;font-size:20px;display:block}.page-title{margin-bottom:4px;font-size:22px;font-weight:700}.page-subtitle{color:var(--text-muted);margin-bottom:24px;font-size:14px}.flex{display:flex}.flex-between{justify-content:space-between;align-items:center;display:flex}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.text-muted{color:var(--text-muted)}.text-sm{font-size:13px}.text-right{text-align:right}.no-data{text-align:center;color:var(--text-muted);padding:48px 16px;font-size:15px}.modal-overlay{z-index:200;background:#0006;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:500px;max-height:90vh;overflow-y:auto}.modal-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.modal-header h3{font-size:17px;font-weight:700}.modal-body{padding:20px}.modal-close{color:var(--text-muted);background:0 0;border:none;padding:0;font-size:22px;line-height:1}.modal-footer{border-top:1px solid var(--border);justify-content:flex-end;gap:8px;padding:16px 20px;display:flex}@media (max-width:768px){.desktop-nav{display:none}.mobile-nav{display:flex}.main{padding-bottom:72px}.form-row{grid-template-columns:1fr}.stat-value{font-size:22px}.header-inner{height:50px}.logo-sub{display:none}}@media (min-width:769px){.mobile-nav{display:none}}@media print{.header,.nav,.mobile-nav,.upgrade-banner,.no-print{display:none!important}.main{max-width:none;padding:0}.invoice-paper{box-shadow:none;border:none}body{background:#fff}}