:root{--bg: #030503;--surface: #0e130f;--surface-alt: #171d18;--border: #2a332b;--text: #e2e8f0;--text-muted: #94a3b8;--accent: #38bdf8;--accent-dark: #0284c7;--danger: #f87171;--success: #4ade80;--warning: #facc15;--radius: 10px;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--accent)}button{font-family:inherit;cursor:pointer}.btn{background:var(--accent);color:#04202f;border:none;border-radius:var(--radius);padding:.6rem 1.1rem;font-weight:600;font-size:.95rem}.btn:hover{background:var(--accent-dark);color:#fff}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:transparent;border:1px solid var(--border);color:var(--text);border-radius:var(--radius);padding:.55rem 1rem}.btn-secondary:hover{border-color:var(--accent)}.btn-danger{background:transparent;border:1px solid var(--danger);color:var(--danger);border-radius:var(--radius);padding:.4rem .8rem;font-size:.85rem}input,select,textarea{background:var(--surface-alt);border:1px solid var(--border);color:var(--text);border-radius:var(--radius);padding:.6rem .75rem;font-size:.95rem;width:100%}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}label{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:.3rem}.field{margin-bottom:1rem}.auth-screen{flex:1;display:flex;align-items:center;justify-content:center;padding:1.5rem}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:2rem;width:100%;max-width:380px}.auth-card h1{font-size:1.3rem;margin:0 0 .3rem}.auth-card p.subtitle{color:var(--text-muted);margin:0 0 1.5rem;font-size:.9rem}.error-msg{background:#f871711f;border:1px solid var(--danger);color:var(--danger);border-radius:var(--radius);padding:.6rem .8rem;font-size:.85rem;margin-bottom:1rem}.app-shell{flex:1;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:.9rem 1.25rem;border-bottom:1px solid var(--border);background:var(--surface)}.topbar .brand{font-weight:700;display:flex;align-items:center;gap:.6rem}.topbar .brand img{width:32px;height:32px;border-radius:7px;flex-shrink:0}.topbar .brand span small{display:block;font-weight:400;color:var(--text-muted);font-size:.75rem}.auth-logo{display:flex;justify-content:center;margin-bottom:1.1rem}.auth-logo img{width:72px;height:72px;border-radius:16px}.tabs{display:flex;gap:.25rem;padding:0 1.25rem;border-bottom:1px solid var(--border);background:var(--surface);overflow-x:auto}.tabs a{display:block;padding:.8rem .9rem;color:var(--text-muted);text-decoration:none;font-size:.9rem;border-bottom:2px solid transparent;white-space:nowrap}.tabs a.active{color:var(--text);border-bottom-color:var(--accent)}.content{padding:1.25rem;flex:1;max-width:900px;width:100%;margin:0 auto}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem 1.25rem;margin-bottom:1rem}.list-item{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.8rem 0;border-bottom:1px solid var(--border)}.list-item:last-child{border-bottom:none}.list-item .meta{font-size:.8rem;color:var(--text-muted)}.badge{display:inline-block;padding:.15rem .55rem;border-radius:999px;font-size:.75rem;font-weight:600}.badge.pendente{background:#facc1526;color:var(--warning)}.badge.pago{background:#4ade8026;color:var(--success)}.badge.atrasado{background:#f8717126;color:var(--danger)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.75rem}.stat{background:var(--surface-alt);border-radius:var(--radius);padding:1rem}.stat .label{font-size:.8rem;color:var(--text-muted)}.stat .value{font-size:1.5rem;font-weight:700;margin-top:.25rem}.empty-state{color:var(--text-muted);font-size:.9rem;padding:1.5rem 0;text-align:center}.row{display:flex;gap:.75rem;flex-wrap:wrap}.row>*{flex:1;min-width:140px}.admin-select{margin-bottom:1.25rem}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;padding:.5rem .4rem;border-bottom:1px solid var(--border)}th{color:var(--text-muted);font-weight:600;font-size:.8rem}