:root{--text:#4b5563;--text-h:#111827;--bg:#f5f6f8;--card-bg:#fff;--border:#e2e4e9;--accent:#6d28d9;--accent-light:#ede9fe;--danger:#dc2626;--success:#16a34a;--warning:#d97706;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font:15px/1.5 system-ui,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{min-height:100svh;margin:0}#root{flex-direction:column;min-height:100svh;display:flex}h1,h2,h3{color:var(--text-h);margin:0;font-weight:600}button{font:inherit;cursor:pointer}input,select,textarea{font:inherit}table{border-collapse:collapse}.loading-screen{height:100svh;color:var(--text);justify-content:center;align-items:center;display:flex}.app-shell{flex-direction:column;min-height:100svh;display:flex}.app-header{background:var(--card-bg);border-bottom:1px solid var(--border);z-index:10;justify-content:space-between;align-items:center;padding:12px 16px;display:flex;position:sticky;top:0}.app-header-title{color:var(--text-h);font-size:16px;font-weight:700}.app-header-user{align-items:center;gap:10px;font-size:13px;display:flex}.logout-btn{border:1px solid var(--border);color:var(--text);background:0 0;border-radius:6px;padding:6px 10px}.tab-nav{background:var(--card-bg);border-bottom:1px solid var(--border);display:flex;overflow-x:auto}.tab{text-align:center;color:var(--text);white-space:nowrap;border-bottom:3px solid #0000;flex:1;padding:12px 8px;font-size:14px;font-weight:500;text-decoration:none}.tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:700}.app-content{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:16px}.login-page{background:linear-gradient(160deg,#6d28d9 0%,#4c1d95 100%);justify-content:center;align-items:center;min-height:100svh;padding:16px;display:flex}.login-card{background:var(--card-bg);border-radius:16px;flex-direction:column;gap:14px;width:100%;max-width:360px;padding:32px 28px;display:flex;box-shadow:0 20px 40px #0003}.login-card h1{text-align:center;font-size:22px}.login-subtitle{text-align:center;color:var(--text);margin-bottom:8px;font-size:13px}.login-card label{color:var(--text-h);flex-direction:column;gap:6px;font-size:13px;font-weight:500;display:flex}.login-card input{border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-size:14px}.login-card button{background:var(--accent);color:#fff;border:none;border-radius:8px;margin-top:8px;padding:12px;font-size:15px;font-weight:600}.login-card button:disabled{opacity:.6}.form-error{color:var(--danger);background:#fef2f2;border-radius:8px;padding:8px 10px;font-size:13px}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;margin-bottom:16px;padding:16px}.section-title{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.btn{border:1px solid var(--border);color:var(--text-h);background:#fff;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:500}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn-sm{padding:5px 10px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}.badge{border-radius:999px;padding:2px 8px;font-size:12px;font-weight:600;display:inline-block}.badge-pending{color:#475569;background:#f1f5f9}.badge-completed{background:var(--accent-light);color:var(--accent)}.badge-paid{color:var(--success);background:#dcfce7}.badge-free{color:#0369a1;background:#e0f2fe}.badge-paid-type{color:var(--warning);background:#fef3c7}.calendar-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.calendar-grid{grid-template-columns:repeat(7,1fr);gap:4px;display:grid}.calendar-dow{text-align:center;color:var(--text);padding-bottom:4px;font-size:12px;font-weight:600}.calendar-cell{border:1px solid var(--border);cursor:pointer;text-align:left;background:#fff;border-radius:8px;flex-direction:column;gap:2px;min-height:68px;padding:4px;font-size:12px;display:flex}.calendar-cell.empty{cursor:default;background:0 0;border:none}.calendar-cell.today{border-color:var(--accent)}.calendar-date{color:var(--text-h);font-weight:600}.calendar-event{background:var(--accent-light);color:var(--accent);text-overflow:ellipsis;white-space:nowrap;border-radius:4px;padding:1px 4px;font-size:10px;overflow:hidden}.grid-table-wrap{border-radius:8px;max-height:70vh;overflow:auto}.grid-table{border-collapse:collapse;width:100%;min-width:720px;font-size:12px}.grid-table th,.grid-table td{border:1px solid var(--border);text-align:center;white-space:nowrap;padding:6px 8px}.grid-table th{color:var(--text-h);z-index:30;box-shadow:0 1px 0 0 var(--border);background:#fff;font-weight:600;position:sticky;top:0}.accordion-list{flex-direction:column;gap:10px;display:flex}.accordion-group{border:1px solid var(--border);border-radius:10px;overflow:hidden}.accordion-header{cursor:pointer;width:100%;color:var(--text-h);background:#f9fafb;border:none;justify-content:space-between;align-items:center;padding:10px 14px;font-size:14px;font-weight:600;transition:background .15s;display:flex}.accordion-header:hover{background:#f3f4f6}.accordion-caret{color:#9ca3af;font-size:12px;transition:transform .2s;display:inline-block}.accordion-caret.open{transform:rotate(180deg)}.accordion-table-wrap{border-top:1px solid var(--border);border-radius:0;max-height:45vh;animation:.15s accordion-fade-in}@keyframes accordion-fade-in{0%{opacity:0}to{opacity:1}}.grid-table tr:nth-child(2n) td{background:#fafafa}.remaining-negative{color:var(--danger);font-weight:700}.form-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;display:grid}.form-field{flex-direction:column;gap:4px;font-size:13px;display:flex}.form-field label{color:var(--text-h);font-weight:500}.form-field input,.form-field select,.form-field textarea{border:1px solid var(--border);text-overflow:ellipsis;white-space:nowrap;border-radius:6px;padding:8px 10px;overflow:hidden}.form-actions{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.locked-banner{color:#92400e;background:#fef3c7;border-radius:8px;margin-bottom:12px;padding:10px 12px;font-size:13px}.modal-overlay{z-index:50;background:#0006;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-card{background:#fff;border-radius:12px;width:100%;max-width:480px;max-height:90vh;padding:20px;overflow-y:auto}.empty-state{text-align:center;color:var(--text);padding:40px 0;font-size:14px}.filter-bar{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.filter-bar select,.filter-bar input{border:1px solid var(--border);border-radius:6px;padding:6px 8px;font-size:13px}