:root{
    --bg:#0f172a; --panel:#1e293b; --panel2:#243449; --line:#334155;
    --text:#e2e8f0; --muted:#94a3b8; --accent:#4f8cff; --accent2:#22c55e;
    --radius:14px; --shadow:0 6px 24px rgba(0,0,0,.25);
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}

/* topbar */
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 22px;background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand{font-weight:700;font-size:18px}
.logout{color:var(--muted);text-decoration:none;font-size:14px;padding:7px 14px;border:1px solid var(--line);border-radius:10px}
.logout:hover{color:var(--text);border-color:var(--accent)}
.topnav{display:flex;align-items:center;gap:8px}
.topnav a{color:var(--muted);text-decoration:none;font-size:14px;padding:7px 14px;border-radius:10px}
.topnav a:hover{color:var(--text)}
.topnav a.active{color:#fff;background:var(--accent)}

/* budget form */
.row-between{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}
.budget-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px;margin-top:18px}
.budget-form label{display:flex;flex-direction:column;gap:7px;font-size:12px;font-weight:600;letter-spacing:.02em;text-transform:uppercase;color:var(--muted)}
.budget-form label.check{flex-direction:row;align-items:center;gap:10px;text-transform:none;letter-spacing:0;font-size:14px;font-weight:500;color:var(--text);align-self:end;padding-bottom:12px}
.budget-form label.check input{width:18px;height:18px;accent-color:var(--accent)}
.budget-form label.wide2{grid-column:span 2}
.budget-form input,.budget-form select{background:var(--bg);border:1px solid var(--line);color:var(--text);border-radius:10px;padding:12px 13px;font-size:15px;font-weight:400;text-transform:none;letter-spacing:0;transition:border-color .15s,box-shadow .15s}
.budget-form input:focus,.budget-form select:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,140,255,.18)}
.budget-form input::placeholder{color:#5b6b82}
.budget-form .form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:14px;border-top:1px solid var(--line);padding-top:18px;margin-top:2px}
button.primary{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:12px 26px;font-size:15px;font-weight:600;cursor:pointer;transition:background .15s}
button.primary:hover{background:#3b78f0}

/* budget table */
#budgetTable td{vertical-align:middle;padding:14px 12px}
#budgetTable td:first-child{font-weight:600}
.actions-cell{display:flex;gap:7px;flex-wrap:wrap;justify-content:flex-end}
button.mini{border:1px solid var(--line);background:var(--panel2);color:var(--muted);border-radius:8px;padding:7px 13px;font-size:12px;font-weight:600;cursor:pointer;transition:all .15s}
button.mini:hover{color:var(--text)}
.act-paid:hover{border-color:#22c55e;color:#22c55e;background:rgba(34,197,94,.1)}
.act-remind:hover{border-color:#f59e0b;color:#f59e0b;background:rgba(245,158,11,.1)}
.act-edit:hover{border-color:var(--accent);color:var(--accent)}
.act-del{padding:7px 11px}
.act-del:hover{border-color:#ef4444;color:#ef4444;background:rgba(239,68,68,.1)}
@media(max-width:600px){.budget-form label.wide2{grid-column:span 1}}

.wrap{max-width:1180px;margin:0 auto;padding:20px}

/* filters */
.filters{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;margin-bottom:18px}
.tabs{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:4px}
.tabs button{background:none;border:0;color:var(--muted);padding:8px 18px;border-radius:9px;cursor:pointer;font-size:14px;font-weight:600}
.tabs button.active{background:var(--accent);color:#fff}
.filter-controls{display:flex;flex-wrap:wrap;gap:8px}
.filter-controls select,.filter-controls input{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:8px 10px;font-size:14px}
.ghost{background:none;border:1px solid var(--line);color:var(--muted);border-radius:10px;padding:8px 14px;cursor:pointer}
.ghost:hover{color:var(--text);border-color:var(--accent)}

/* cards */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.card h3{margin:0 0 14px;font-size:15px;font-weight:600;color:var(--text)}

.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.kpi{display:flex;flex-direction:column;gap:6px}
.kpi span{color:var(--muted);font-size:13px}
.kpi strong{font-size:24px;font-weight:700}
.kpi.accent{background:linear-gradient(135deg,#1e3a8a,#1e293b);border-color:#2f4a86}

.grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:14px;margin-bottom:18px}
.chart-card{min-height:120px}
.wide{grid-column:1 / -1}
@media(min-width:900px){.wide{grid-column:auto}}

/* table */
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.04em}
tbody tr:hover{background:var(--panel2)}
.right{text-align:right}
.center{text-align:center}
.tag{background:var(--panel2);border:1px solid var(--line);padding:3px 9px;border-radius:20px;font-size:12px;white-space:nowrap}
.del{background:none;border:0;color:var(--muted);cursor:pointer;font-size:14px;padding:4px 8px;border-radius:6px}
.del:hover{color:#ef4444;background:rgba(239,68,68,.12)}
.muted{color:var(--muted)}

/* login */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh}
.login-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:34px;width:340px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px}
.login-card h1{margin:0;font-size:22px;text-align:center}
.login-card .muted{text-align:center;margin:0 0 6px}
.login-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}
.login-card input{background:var(--bg);border:1px solid var(--line);color:var(--text);border-radius:10px;padding:11px 12px;font-size:15px}
.login-card button{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:12px;font-size:15px;font-weight:600;cursor:pointer;margin-top:6px}
.login-card button:hover{background:#3b78f0}
.alert{background:rgba(239,68,68,.15);border:1px solid #ef4444;color:#fca5a5;padding:10px;border-radius:10px;font-size:13px;text-align:center}

@media(max-width:820px){
    .kpis{grid-template-columns:repeat(2,1fr)}
    .grid{grid-template-columns:1fr}
}