:root{--bg:#f4f5f7;--card:#fff;--text:#1a202c;--muted:#718096;--accent:#0f766e;--accent-dark:#115e59;--border:#e2e8f0;--danger:#b91c1c}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:15px}h1,h2,h3{font-weight:600}h2{margin:24px 0 12px;font-size:20px}h3{margin:16px 0 8px;font-size:16px}.layout{flex-direction:column;height:100dvh;display:flex}.layout main{flex-direction:column;flex:1;min-height:0;padding:8px 20px 24px;display:flex;overflow:hidden auto}.layout main>:not(.pdf-frame){width:100%;max-width:1000px;margin-left:auto;margin-right:auto}.topbar{background:var(--card);border-bottom:1px solid var(--border);align-items:center;gap:24px;padding:12px 24px;display:flex}.topbar .brand{font-size:17px;font-weight:700}.topbar nav{flex:1;gap:4px;display:flex}.topbar nav a{color:var(--muted);border-radius:8px;padding:6px 12px;font-weight:500;text-decoration:none}.topbar nav a:hover{color:var(--text);background:var(--bg)}.topbar nav a.active{color:var(--accent-dark);background:#f0fdfa}.center-page{justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{text-align:center;width:380px}.login-card h1{margin-top:0}.login-card input{width:100%;margin-bottom:12px}.login-card button{width:100%}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;margin-bottom:16px;padding:20px}.card-grid{grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px;margin-bottom:24px;display:grid}.customer-card h3{margin-top:0}.totals-preview{color:var(--muted);min-height:20px}.card-line{border-top:1px dashed var(--border);align-items:center;padding:6px 0}.card-line input{width:90px}.page-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:16px;display:flex}.page-head h2{margin:0}.row{align-items:flex-end;gap:12px;display:flex}.row.wrap{flex-wrap:wrap}.grow{flex:1;min-width:200px}.line-row{border-bottom:1px dashed var(--border);margin-bottom:4px;padding-bottom:12px}label{color:var(--muted);flex-direction:column;gap:4px;font-size:13px;font-weight:500;display:flex}input,select{font:inherit;color:var(--text);border:1px solid var(--border);background:#fff;border-radius:8px;padding:8px 10px}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:var(--accent)}input[type=number]{width:110px}input[type=date]{width:160px}button,.button{font:inherit;background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:9px 16px;font-weight:600;text-decoration:none;display:inline-block}button:hover,.button:hover{background:var(--accent-dark)}button:disabled{opacity:.5;cursor:not-allowed}button.secondary,.button.secondary{background:var(--card);color:var(--text);border:1px solid var(--border)}button.secondary:hover,.button.secondary:hover{background:var(--bg)}button.link{color:var(--accent-dark);background:0 0;border:none;padding:0;font-weight:500;text-decoration:underline}.danger{color:var(--danger)!important}table.list{border-collapse:collapse;background:var(--card);border:1px solid var(--border);border-radius:12px;width:100%;overflow:hidden}table.list th{text-align:left;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);border-bottom:1px solid var(--border);padding:10px 14px;font-size:12px}table.list td{border-bottom:1px solid var(--border);padding:10px 14px}table.list tr:last-child td{border-bottom:none}table.list a{color:var(--accent-dark);font-weight:600;text-decoration:none}.r{text-align:right}.badge{vertical-align:middle;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600}.badge.draft{color:#92400e;background:#fef3c7}.badge.sent{color:#1e40af;background:#dbeafe}.badge.paid{color:#065f46;background:#d1fae5}.muted{color:var(--muted)}.error{color:var(--danger)}.warn{color:#92400e}.notice{color:#065f46;font-weight:600}.pdf-frame{border:none;border-top:1px solid var(--border);background:#525659;flex:1;min-height:0;margin:12px -20px -24px}