:root{
  --bg:#F4F6F9;--ink:#16233D;--ink-soft:#5A6679;--line:#E3E6EC;--line-2:#EEF0F4;--surface:#FFFFFF;
  --gold:#C8902B;--gold-soft:#F7EFDD;--gold-line:#E8D3A3;--paid:#1C7A57;--paid-soft:#E4F1EB;--due:#BC4630;--due-soft:#F8E7E1;
  --sky:#2E5C8A;--sky-soft:#E7EEF6;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --shadow:0 1px 2px rgba(22,35,61,.06),0 4px 16px rgba(22,35,61,.05);
}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.45}
.tnum{font-variant-numeric:tabular-nums}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:14px}
h1,h2,h3{margin:0;font-weight:600}a{color:var(--sky)}
.app{display:grid;grid-template-columns:236px 1fr;min-height:100vh}
.side{background:var(--ink);color:#C9D2E1;padding:22px 16px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}
.brand{display:flex;flex-direction:column;gap:2px;padding:4px 8px 16px}
.brand-logo{width:80%;height:auto;object-fit:contain;display:block;margin-bottom:6px;align-self:flex-start;flex-shrink:0}
.brand .sub{font-size:11px;color:#7E8BA3;letter-spacing:.05em;text-transform:uppercase}
.nav{display:flex;flex-direction:column;gap:2px}
.nav a,.nav button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:transparent;border:0;color:#C9D2E1;padding:8px 12px;border-radius:8px;font-size:14px;text-decoration:none}
.nav a .ic,.nav button .ic{width:18px;text-align:center;opacity:.85}
.nav a:hover,.nav button:hover{background:rgba(255,255,255,.06);color:#fff}
.nav a.active,.nav button.active{background:var(--gold);color:#2A2007;font-weight:600}
.side .foot{margin-top:auto;font-size:11px;color:#6B768E;padding:8px;line-height:1.5}
.side .foot .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--paid);margin-right:5px}
.side .foot form button{background:none;border:0;color:inherit;font:inherit;cursor:pointer;padding:0;text-decoration:underline}
.main{padding:0 0 60px}
.topbar{position:sticky;top:0;z-index:30;background:rgba(244,246,249,.86);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding:14px 32px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.topbar h1{font-family:var(--serif);font-size:22px}
.period{display:flex;align-items:center;gap:6px;margin-left:auto}
.period .pill{display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:5px 6px}
.period button,.period a{border:0;background:transparent;color:var(--ink);font-size:16px;padding:2px 8px;border-radius:6px;text-decoration:none;display:inline-flex;align-items:center}.period button:hover,.period a:hover{background:var(--line-2)}
.period .lbl{min-width:118px;text-align:center;font-weight:600}
.view{padding:24px 32px;max-width:1120px}.view.wide{max-width:1280px}
.cards{display:grid;gap:14px}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow)}
.card .k{font-size:12px;color:var(--ink-soft)}.card .v{font-family:var(--serif);font-size:24px;margin-top:7px}.card .note{font-size:11.5px;color:var(--ink-soft);margin-top:4px}
.hero{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:22px 26px;margin-bottom:16px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,var(--gold),var(--gold-line))}
.hero .eyebrow{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:700}
.hero .amount{font-family:var(--serif);font-size:46px;line-height:1.05;margin:6px 0 2px}.hero .meta{color:var(--ink-soft);font-size:13px}
.bar{margin-top:14px;height:12px;border-radius:7px;background:var(--due-soft);overflow:hidden;display:flex}.bar i{display:block;height:100%;background:var(--paid)}
.barlegend{display:flex;gap:20px;margin-top:9px;font-size:12.5px;color:var(--ink-soft);flex-wrap:wrap}.barlegend b{font-variant-numeric:tabular-nums}
.sw{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:6px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden;margin-bottom:18px}
.panel .ph{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.panel .ph h2{font-family:var(--serif);font-size:17px}.panel .ph .sp{margin-left:auto;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.pbody{padding:16px 18px}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 14px;font-size:13.5px}
th[data-sort]{cursor:pointer;user-select:none;white-space:nowrap}th[data-sort]:hover{color:var(--gold)}
thead th{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft);font-weight:600;border-bottom:1px solid var(--line);background:#FBFCFD}
tbody tr{border-bottom:1px solid var(--line-2)}tbody tr:last-child{border-bottom:0}tbody tr:hover{background:#FBFBF8}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tfoot td{font-weight:600;border-top:2px solid var(--line);background:#FBFCFD}
.muted{color:var(--ink-soft)}
.tag{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:600;padding:3px 9px;border-radius:20px;border:1px solid transparent;white-space:nowrap}
.tag.paid{background:var(--paid-soft);color:var(--paid);border-color:#BFE0D0}.tag.due{background:var(--due-soft);color:var(--due);border-color:#EEC8BD}
.tag.part{background:var(--gold-soft);color:#9A6D14;border-color:var(--gold-line)}.tag.susp{background:#EEF0F4;color:#65718A;border-color:#DFE3EA}
.tag.free{background:var(--sky-soft);color:var(--sky);border-color:#C8DAEC}.tag.ok{background:var(--paid-soft);color:var(--paid)}
.tag.warn{background:var(--gold-soft);color:#9A6D14}.tag.over{background:var(--due-soft);color:var(--due)}.tag.lvl{background:#EFEAF7;color:#5B3E8E;border-color:#DACFEC}
.btn{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:8px 14px;border-radius:9px;font-size:13px;font-weight:500;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.btn:hover{border-color:#ccd2db;background:#FBFCFD}.btn.primary{background:var(--ink);color:#fff;border-color:var(--ink)}.btn.primary:hover{background:#22335a}
.btn.gold{background:var(--gold);border-color:var(--gold);color:#2A2007;font-weight:600}.btn.sm{padding:5px 10px;font-size:12px;border-radius:8px}
.btn.danger{color:var(--due);border-color:#EEC8BD;background:var(--due-soft)}
.btn.success{background:var(--paid);border-color:var(--paid);color:#fff}.btn.success:hover{background:#155f44}
.btn.danger-solid{background:var(--due);border-color:var(--due);color:#fff}.btn.danger-solid:hover{background:#9c3f2e}
.btn.lg{padding:16px 20px;font-size:16px;border-radius:12px;font-weight:600}
.iconbtn{border:0;background:transparent;padding:4px 7px;border-radius:7px;color:var(--ink-soft);font-size:14px}.iconbtn:hover{background:var(--line-2);color:var(--ink)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{border:0;background:var(--surface);padding:5px 10px;font-size:11.5px;color:var(--ink-soft);border-right:1px solid var(--line)}.seg button:last-child{border-right:0}
.seg button.on.s-odbyla{background:var(--paid);color:#fff}.seg button.on.s-przepadla{background:var(--due);color:#fff}.seg button.on.s-przeniesiona{background:var(--gold);color:#2A2007}
.form{display:grid;gap:13px}.row2{display:grid;grid-template-columns:1fr 1fr;gap:13px}.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:13px}.row4{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
label.fld{display:flex;flex-direction:column;gap:5px;font-size:12.5px;color:var(--ink-soft)}label.fld span b{color:var(--due)}
.inp{border:1px solid var(--line);border-radius:9px;padding:9px 11px;background:#fff;color:var(--ink);width:100%}.inp:focus{outline:2px solid var(--gold-line);border-color:var(--gold)}
textarea.inp{min-height:120px;resize:vertical}
.help{font-size:11.5px;color:var(--ink-soft)}.sect-title{font-family:var(--serif);font-size:15px;margin:6px 0 0;display:flex;align-items:center;gap:8px}
.rowline{display:flex;gap:8px;align-items:center}.clash{background:var(--due-soft)!important}
.scrim{position:fixed;inset:0;background:rgba(16,24,40,.42);display:none;align-items:center;justify-content:center;z-index:80;padding:24px}.scrim.show{display:flex}
.modal{background:var(--surface);border-radius:16px;width:min(700px,100%);max-height:92vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.25)}.modal.lg{width:min(880px,100%)}
.modal .mh{padding:16px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center}.modal .mh h2{font-family:var(--serif);font-size:18px}
.modal .mb{padding:18px 22px}.modal .mf{padding:14px 22px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end;background:#FBFCFD;flex-wrap:wrap}
.empty{padding:46px 20px;text-align:center;color:var(--ink-soft)}.empty .big{font-family:var(--serif);font-size:18px;color:var(--ink);margin-bottom:6px}
.receipt h3{font-family:var(--serif);font-size:20px}.receipt .top{border-top:3px dashed var(--gold-line);padding-top:16px}
.receipt .rrow{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid var(--line-2);font-size:13.5px}
.receipt .rtot{display:flex;justify-content:space-between;padding:11px 0 2px;font-family:var(--serif);font-size:20px;border-top:2px solid var(--ink);margin-top:6px}
.receipt .small{font-size:11.5px;color:var(--ink-soft);margin-top:14px;line-height:1.5}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:11px 18px;border-radius:10px;font-size:13px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:100;display:flex;gap:14px;align-items:center}
.toast.show{opacity:1;pointer-events:auto;transform:translateX(-50%) translateY(-4px)}
.toast button{background:var(--gold);border:0;color:#2A2007;font-weight:600;padding:4px 10px;border-radius:7px;font-size:12px}
.switch{position:relative;display:inline-block;width:40px;height:22px}.switch input{display:none}
.switch .sl{position:absolute;inset:0;background:#CDD3DD;border-radius:20px;transition:.2s}.switch .sl:before{content:"";position:absolute;width:16px;height:16px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.switch input:checked+.sl{background:var(--paid)}.switch input:checked+.sl:before{transform:translateX(18px)}
.filters{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.filters .inp{padding:6px 10px;width:auto}

/* ===== BOTTOM NAV (mobile, <900px) ===== */
.bottom-nav{display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--ink);border-top:1px solid rgba(255,255,255,.08);overflow-x:auto;-webkit-overflow-scrolling:touch;}
.bottom-nav a{flex:0 0 66px;width:66px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:#C9D2E1;text-decoration:none;font-size:10px;padding:7px 2px calc(7px + env(safe-area-inset-bottom));border-radius:8px;white-space:nowrap;}
.bottom-nav a .ic{font-size:17px;opacity:.9;}
.bottom-nav a.active{color:#2A2007;background:var(--gold);font-weight:600;}

@media (max-width:900px){
  .app{grid-template-columns:1fr}
  .side{display:none}
  .bottom-nav{display:flex}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .row2,.row3,.row4{grid-template-columns:1fr}
  .view{padding:18px;padding-bottom:82px}
}

@media print{.side,.topbar,.noprint{display:none!important}.app{display:block}.scrim{position:static;background:none;display:block;padding:0}.modal{box-shadow:none;width:100%;max-height:none}.modal .mh,.modal .mf{display:none}body{background:#fff}}

/* ===== RESPONSIVE TABLES: cards on narrow screens ===== */
@media (max-width:640px){
  table.responsive-table thead{display:none;}
  table.responsive-table,table.responsive-table tbody,table.responsive-table tr,table.responsive-table td{display:block;width:100%;}
  table.responsive-table tr{margin-bottom:10px;border:1px solid var(--line);border-radius:10px;padding:6px 12px;background:var(--surface);}
  table.responsive-table tfoot tr{background:#FBFCFD;}
  table.responsive-table td{border:0!important;border-bottom:1px solid var(--line-2)!important;padding:7px 0;display:flex;justify-content:space-between;align-items:center;gap:10px;text-align:right;}
  table.responsive-table td:last-child{border-bottom:0!important;}
  table.responsive-table td::before{content:attr(data-label);font-weight:600;color:var(--ink-soft);text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.03em;flex:0 0 auto;}
  table.responsive-table td:empty::before{content:none;}
  table.responsive-table td[data-label=""]::before{content:none;}
  .modal,.modal.lg{width:100vw;max-width:100vw;height:100vh;max-height:100vh;border-radius:0;}
  .scrim{padding:0;}
}

/* ===== PREMIUM POLISH: micro-interactions ===== */
.card,.panel,.btn,.tag,tbody tr,.bottom-nav a,.nav a{transition:background .15s ease,box-shadow .15s ease,border-color .15s ease,transform .1s ease,color .15s ease;}
.card:hover{box-shadow:0 2px 8px rgba(22,35,61,.09),0 8px 22px rgba(22,35,61,.07);transform:translateY(-1px);}
a:focus-visible,button:focus-visible,.inp:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}
.btn:active{transform:translateY(1px);}
.panel{scrollbar-gutter:stable;}
table thead th{position:sticky;top:0;z-index:2;}

/* ===== CALENDAR ===== */
.cal-tabs{display:flex;gap:2px;padding:12px 16px 0;border-bottom:1px solid var(--line);background:var(--surface);}
.cal-tabs a,.cal-tabs button{border:0;background:transparent;padding:8px 16px;font-size:13px;color:var(--ink-soft);border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer;font-family:inherit;border-radius:8px 8px 0 0;text-decoration:none;display:inline-block;}
.cal-tabs a.on,.cal-tabs button.on{color:var(--ink);border-bottom-color:var(--gold);font-weight:600;}
.cal-toolbar{display:flex;align-items:center;gap:8px;padding:10px 16px;flex-wrap:wrap;}
.cal-head{display:grid;grid-template-columns:52px repeat(7,1fr);border-bottom:2px solid var(--line);position:sticky;top:57px;background:var(--surface);z-index:4;}
.cal-gutter-h{padding:8px 4px;}
.cal-day-h{padding:8px 4px;text-align:center;border-left:1px solid var(--line-2);}
.cal-day-h .dn{font-size:10px;text-transform:uppercase;color:var(--ink-soft);letter-spacing:.04em;}
.cal-day-h .dd{font-size:18px;font-weight:700;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;margin:2px auto 0;}
.cal-day-h.today .dd{background:var(--sky);color:#fff;}
.cal-scroll{max-height:72vh;overflow-y:auto;}
.cal-body{display:grid;grid-template-columns:52px repeat(7,1fr);}
.cal-hour-lbl{height:60px;padding:0 6px 0 0;font-size:10px;color:var(--ink-soft);text-align:right;display:flex;align-items:flex-start;justify-content:flex-end;padding-top:3px;}
.cal-day-col{position:relative;border-left:1px solid var(--line-2);}
.cal-day-col.today-col{background:rgba(46,92,138,.03);}
.cal-hslot{height:60px;border-bottom:1px solid var(--line-2);cursor:default;}
.cal-hslot.drop-over{background:rgba(46,92,138,.12)!important;outline:2px dashed var(--sky);outline-offset:-2px;}
.cal-ev{position:absolute;left:2px;right:2px;border-radius:5px;padding:2px 5px;font-size:10.5px;line-height:1.3;cursor:pointer;overflow:hidden;color:#fff;z-index:2;box-shadow:0 1px 3px rgba(0,0,0,.25);transition:filter .1s;}
.cal-ev:hover{filter:brightness(1.12);z-index:3;}
.cal-ev.ev-przepadla{opacity:.38;text-decoration:line-through;}
.cal-ev.ev-movedfrom{opacity:.52;border:2px dashed rgba(255,255,255,.55);}
.cal-ev.ev-freeslot{background:var(--paid-soft);color:var(--paid);border:1.5px dashed var(--paid);box-shadow:none;}.cal-ev.ev-freeslot-reserved{background:var(--sky-soft);color:var(--sky);border:1.5px dashed var(--sky);}
.cal-ev.dragging{opacity:.35;}
.cal-now{position:absolute;left:0;right:0;height:2px;background:#e53935;z-index:5;pointer-events:none;}
.cal-now::before{content:"";position:absolute;left:-5px;top:-4px;width:10px;height:10px;border-radius:50%;background:#e53935;}
/* popup */
.cal-popup{position:fixed;z-index:98;background:var(--surface);border:1px solid var(--line);border-radius:13px;box-shadow:0 8px 32px rgba(0,0,0,.22);padding:14px 16px;width:288px;max-width:95vw;}
.cal-popup .cph{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:6px;}
.cal-popup .cph h3{font-family:var(--serif);font-size:15px;margin:0;line-height:1.25;flex:1;padding-right:8px;}
/* color chips for custom events */
.color-chips{display:flex;gap:5px;flex-wrap:wrap;margin:5px 0 8px;}
.color-chip{width:22px;height:22px;border-radius:50%;cursor:pointer;border:2px solid transparent;box-shadow:0 1px 3px rgba(0,0,0,.2);}
.color-chip.sel{border-color:var(--ink);transform:scale(1.2);}

/* generic active state for .seg buttons without a specific status class (e.g. view switcher) */
.seg button.on{background:var(--ink);color:#fff}

/* ===== CALENDAR: MONTH GRID ===== */
.cal-month{display:grid;grid-template-columns:repeat(7,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line);}
.cal-month-dow{padding:8px 4px;text-align:center;font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);font-weight:600;background:#FBFCFD;border-right:1px solid var(--line);border-bottom:2px solid var(--line);}
.cal-month-cell{min-height:104px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:5px;display:flex;flex-direction:column;gap:3px;cursor:pointer;background:var(--surface);}
.cal-month-cell:hover{background:#FBFCFD;}
.cal-month-cell.other-month{background:#FAFAFB;}
.cal-month-cell.other-month .cal-month-daynum{color:#B7BFCC;}
.cal-month-cell.holiday{background:var(--due-soft);}
.cal-month-daynum{font-size:12px;font-weight:700;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:var(--ink);}
.cal-month-cell.today .cal-month-daynum{background:var(--sky);color:#fff;}
.cal-month-chip{font-size:10px;padding:1px 5px;border-radius:4px;color:#fff;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.cal-month-chip.cal-ev{position:static;left:auto;right:auto;margin:0;}
.cal-month-chip.ev-przepadla{opacity:.5;text-decoration:line-through;}
.cal-month-more{font-size:10px;color:var(--ink-soft);}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
@media (max-width:640px){
  .rowline{flex-wrap:wrap;}
  .row2,.row3,.row4{grid-template-columns:1fr;}
  .cal-toolbar{gap:6px;}
  .topbar{padding:12px 16px;}
  .view{padding:14px;padding-bottom:82px;}
}