:root{--navy:#11283d;--blue:#176b8e;--teal:#1c8d82;--ink:#1c2c38;--muted:#70808c;--line:#e4e9ed;--paper:#fff;--canvas:#f4f7f8;--danger:#bd3d3d;--warning:#bd7a18;--success:#187451}*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font:15px/1.45 Inter,Segoe UI,Arial,sans-serif}.app-shell{min-height:100vh;display:flex}.sidebar{width:250px;background:var(--navy);color:#dce7ec;padding:28px 16px;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0}.brand{display:flex;align-items:center;gap:10px;font-size:22px;letter-spacing:1px;font-weight:700;padding:0 12px 34px}.brand small{font-size:11px;letter-spacing:4px}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid #74b3c3;border-radius:8px;color:#91d5d1}.sidebar nav{display:grid;gap:5px}.nav-link{border:0;border-radius:7px;background:transparent;color:#bfced6;font:inherit;text-align:left;padding:12px 14px;cursor:pointer}.nav-link:hover,.nav-link.active{background:#254158;color:#fff}.sidebar-footer{font-size:12px;color:#8096a5;margin-top:auto;padding:12px}.content{margin-left:250px;width:calc(100% - 250px);max-width:1500px;padding:0 38px 42px}.topbar{height:120px;display:flex;align-items:center;justify-content:space-between}.topbar h1{font-size:28px;line-height:1.1;margin:2px 0}.eyebrow{color:var(--blue);font-size:11px;font-weight:700;letter-spacing:.14em;margin:0}.today{color:var(--muted);font-size:13px}.menu-button{display:none}.view{display:none}.view.active{display:block}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}.metric{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:18px}.metric p{margin:0;color:var(--muted);font-size:13px}.metric strong{display:block;margin-top:8px;font-size:25px}.metric .accent{color:var(--blue)}.metric.danger strong{color:var(--danger)}.panel{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:22px}.grid{display:grid;gap:20px}.two-columns{grid-template-columns:repeat(2,minmax(0,1fr))}.panel-heading,.page-actions{display:flex;gap:20px;align-items:start;justify-content:space-between;margin-bottom:18px}.panel-heading h2{font-size:17px;margin:0}.panel-heading p,.page-actions p{color:var(--muted);margin:3px 0 0;font-size:13px}.page-actions{align-items:center}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;white-space:nowrap}th{color:var(--muted);font-size:11px;letter-spacing:.04em;text-transform:uppercase;text-align:left;padding:10px 9px;border-bottom:1px solid var(--line)}td{padding:12px 9px;border-bottom:1px solid var(--line)}tbody tr:last-child td{border-bottom:0}td.amount{font-weight:650}.empty{text-align:center;color:var(--muted);padding:28px}.primary,.secondary,.text-button,.small-button,.icon-button{font:inherit;cursor:pointer}.primary{border:0;border-radius:7px;background:var(--blue);color:#fff;padding:10px 15px;font-weight:650}.primary:hover{background:#0e5978}.secondary{border:1px solid #cbd5da;border-radius:7px;background:#fff;color:var(--ink);padding:9px 14px}.text-button{border:0;background:transparent;color:var(--blue);padding:3px}.small-button{border:1px solid #ccd7dc;border-radius:6px;background:white;color:var(--blue);padding:6px 9px;font-size:12px}.small-button.danger{color:var(--danger)}.form-panel{max-width:850px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.form-grid label{font-size:13px;font-weight:600;display:grid;gap:6px}.wide{grid-column:span 3}input,select,textarea{width:100%;border:1px solid #cbd5da;border-radius:7px;background:#fff;color:var(--ink);font:inherit;padding:10px}textarea{height:75px;resize:vertical}.form-footer{display:flex!important;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:16px}.form-footer p{color:var(--muted);margin:0;font-size:13px}.status{display:inline-block;border-radius:999px;padding:3px 9px;font-size:12px;font-weight:650}.status.paid{background:#e4f4ed;color:var(--success)}.status.open{background:#e8f1f5;color:#276a86}.status.overdue{background:#fbeaea;color:var(--danger)}.filter-row{margin-bottom:17px}.settings-grid{align-items:start}.list-panel>div:not(.panel-heading){display:grid;gap:8px}.list-item{display:flex;justify-content:space-between;align-items:center;padding:9px 0;border-bottom:1px solid var(--line)}.inline-form{display:flex;gap:8px;margin-top:16px}.steps{margin:0;padding-left:20px;display:grid;gap:14px;color:#52626d}.modal{border:0;border-radius:12px;padding:0;width:min(680px,calc(100vw - 32px));box-shadow:0 20px 60px #12283744}.modal::backdrop{background:#0a1925aa}.modal form,.receipt-modal>div:first-child{padding:24px}.modal-header,.modal-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:20px}.modal-header h2{margin:2px 0 0;font-size:22px}.modal-actions{padding:16px 24px;margin:0;border-top:1px solid var(--line);justify-content:flex-end}.icon-button{border:0;background:transparent;font-size:28px;color:var(--muted)}.receipt{padding:30px;border:1px solid var(--line);font-family:Georgia,serif}.receipt-head{display:flex;justify-content:space-between;border-bottom:2px solid var(--navy);padding-bottom:16px;margin-bottom:28px}.receipt h2{margin:0;color:var(--navy)}.receipt p{font-size:16px;line-height:1.8}.receipt strong{color:var(--navy)}#toast{position:fixed;right:24px;bottom:24px;background:#173649;color:white;padding:12px 16px;border-radius:7px;opacity:0;transform:translateY(12px);transition:.2s;pointer-events:none}#toast.show{opacity:1;transform:translateY(0)}@media(max-width:900px){.sidebar{transform:translateX(-100%);transition:.2s;z-index:2}.sidebar.open{transform:translateX(0)}.content{margin-left:0;width:100%;padding:0 20px 28px}.menu-button{display:block;border:0;background:none;font-size:22px;margin-right:12px}.topbar{justify-content:flex-start;height:100px}.today{margin-left:auto}.metrics{grid-template-columns:repeat(2,1fr)}.two-columns{grid-template-columns:1fr}}@media(max-width:600px){.content{padding:0 14px 24px}.topbar h1{font-size:23px}.today{display:none}.metrics{grid-template-columns:1fr 1fr;gap:10px}.metric{padding:13px}.metric strong{font-size:19px}.panel{padding:15px}.form-grid{grid-template-columns:1fr}.wide{grid-column:span 1}.form-footer{align-items:flex-start!important;flex-direction:column}.page-actions{align-items:flex-start;flex-direction:column;gap:10px}.page-actions select,.page-actions button{width:100%}}@media print{body{background:#fff}.app-shell,.no-print{display:none!important}.receipt-modal{display:block!important;position:static;border:0;box-shadow:none;width:100%}.receipt-modal::backdrop{display:none}.receipt{border:0}}