:root{--bg:#f1f5f9;--surface:#fff;--sidebar:#0f172a;--sidebar-soft:#1e293b;--ink:#0f172a;--ink-soft:#475569;--muted:#94a3b8;--line:#e2e8f0;--accent:#4f46e5;--accent-soft:#eef2ff;--accent-ink:#4338ca;--good:#047857;--good-soft:#ecfdf5;--warn:#b45309;--warn-soft:#fffbeb;--bad:#be123c;--bad-soft:#fff1f2;--radius:12px;--shadow:0 1px 2px #0f172a0f, 0 4px 16px -4px #0f172a14;--font:ui-sans-system, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-size:15px;line-height:1.5}.app-shell{min-height:100vh;display:flex}.sidebar{background:var(--sidebar);color:#cbd5e1;flex-direction:column;flex-shrink:0;width:240px;height:100vh;display:flex;position:sticky;top:0}.brand{color:#fff;letter-spacing:.2px;border-bottom:1px solid #ffffff14;padding:20px 20px 16px;font-size:17px;font-weight:700}.brand small{color:var(--muted);margin-top:2px;font-size:12px;font-weight:400;display:block}.nav{flex-direction:column;flex:1;gap:2px;padding:12px;display:flex}.nav button{color:#cbd5e1;cursor:pointer;text-align:left;background:0 0;border:0;border-radius:8px;align-items:center;gap:10px;width:100%;padding:10px 12px;font-size:14px;font-weight:500;transition:background .12s,color .12s;display:flex}.nav button:hover{color:#fff;background:#ffffff0f}.nav button.active{background:var(--accent);color:#fff}.nav .nav-icon{text-align:center;width:20px;font-size:15px}.sidebar-foot{color:var(--muted);border-top:1px solid #ffffff14;padding:14px 20px;font-size:12px}.main{flex-direction:column;flex:1;min-width:0;display:flex}.topbar{background:var(--surface);border-bottom:1px solid var(--line);z-index:10;justify-content:space-between;align-items:center;gap:12px;padding:14px 28px;display:flex;position:sticky;top:0}.topbar h1{margin:0;font-size:19px;font-weight:700}.content{width:100%;max-width:1160px;margin:0 auto;padding:24px 28px 48px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px;padding:20px 22px}.card h2{margin:0 0 4px;font-size:17px}.card h3{color:var(--ink-soft);text-transform:uppercase;letter-spacing:.4px;margin:18px 0 8px;font-size:14px}.toolbar{justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:12px 0;display:grid}.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px}.stat-label{color:var(--ink-soft);text-transform:uppercase;letter-spacing:.4px;font-size:12px;font-weight:600}.stat-value{font-variant-numeric:tabular-nums;margin-top:4px;font-size:22px;font-weight:700}table{border-collapse:collapse;width:100%;font-size:14px}thead th{text-align:left;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-soft);border-bottom:2px solid var(--line);white-space:nowrap;padding:10px 12px;font-size:12px;font-weight:600}tbody td{border-bottom:1px solid var(--line);vertical-align:middle;padding:11px 12px}tbody tr:last-child td{border-bottom:0}tbody tr:hover{background:#f8fafc}td.amount,th.amount{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.badge{white-space:nowrap;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600;display:inline-block}.badge.housing{color:#3730a3;background:#e0e7ff}.badge.tenant{background:var(--accent-soft);color:var(--accent-ink)}.badge.paid,.badge.good{background:var(--good-soft);color:var(--good)}.badge.owes,.badge.bad{background:var(--bad-soft);color:var(--bad)}.badge.warn{background:var(--warn-soft);color:var(--warn)}.badge.neutral{color:var(--ink-soft);background:#f1f5f9}.muted{color:var(--ink-soft)}.small{font-size:13px}.owes{color:var(--bad);font-weight:600}.paid{color:var(--good);font-weight:600}button,.btn{font-family:var(--font);cursor:pointer;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:8px;padding:9px 16px;font-size:14px;font-weight:600;transition:background .12s,border-color .12s}button:hover,.btn:hover{background:#f8fafc}button.primary,.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover,.btn.primary:hover{background:var(--accent-ink)}button.danger{background:var(--bad-soft);color:var(--bad);border-color:#fecdd3}button:disabled{opacity:.55;cursor:not-allowed}.btn-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}input,select,textarea{font-family:var(--font);border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:8px;width:100%;padding:9px 12px;font-size:14px}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:var(--accent)}label.field{margin-bottom:12px;display:block}label.field>span{color:var(--ink-soft);margin-bottom:5px;font-size:13px;font-weight:600;display:block}.form-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;display:grid}.alert{border:1px solid;border-radius:8px;margin:12px 0;padding:12px 14px;font-size:14px}.alert.error{background:var(--bad-soft);color:#881337;border-color:#fecdd3}.alert.ok{background:var(--good-soft);color:#065f46;border-color:#a7f3d0}.alert.info{background:var(--accent-soft);color:#3730a3;border-color:#c7d2fe}.center-wrap{justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{text-align:center;width:100%;max-width:400px}@media (width<=820px){.app-shell{flex-direction:column}.sidebar{flex-direction:row;align-items:center;width:100%;height:auto;position:static;overflow-x:auto}.brand{white-space:nowrap;border-bottom:0}.nav{flex-direction:row;padding:8px}.nav button{white-space:nowrap}.sidebar-foot{display:none}.content{padding:16px 14px 40px}.topbar{padding:12px 14px}table{font-size:13px}thead th,tbody td{padding:8px}}