:root {
    --tlo: #f6f7f9;
    --karta: #ffffff;
    --tekst: #1d2330;
    --szary: #667085;
    --linia: #dde1e7;
    --akcent: #1f5eff;
    --blad: #b42318;
    --ok: #067647;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--tekst);
    background: var(--tlo);
}

header {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 12px 24px;
    background: var(--karta);
    border-bottom: 1px solid var(--linia);
}
header .marka { font-weight: 700; font-size: 18px; color: var(--tekst); text-decoration: none; }
header nav { display: flex; gap: 16px; flex: 1; }
header .konto { display: flex; gap: 16px; align-items: center; color: var(--szary); }
header form { margin: 0; }

main { margin: 24px 0; padding: 0 24px; }

a { color: var(--akcent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 17px; margin: 24px 0 8px; }

.karta { background: var(--karta); border: 1px solid var(--linia); border-radius: 8px; padding: 20px; }
.waska { max-width: 420px; margin: 60px auto; }

table { width: 100%; border-collapse: collapse; background: var(--karta); border: 1px solid var(--linia); }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--linia); }
th { font-weight: 600; color: var(--szary); font-size: 13px; }
td.srodek, th.srodek { text-align: center; }

label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: 14px; }
label.pole-wyboru { display: flex; gap: 8px; align-items: center; font-weight: normal; }
input[type=text], input[type=email], input[type=password], select {
    width: 100%; padding: 8px 10px; font: inherit; border: 1px solid var(--linia); border-radius: 6px;
}

button, .przycisk {
    display: inline-block; margin-top: 16px; padding: 8px 16px; font: inherit; color: #fff;
    background: var(--akcent); border: 0; border-radius: 6px; cursor: pointer;
}
button.link { margin: 0; padding: 0; color: var(--akcent); background: none; }

.pasek { display: flex; justify-content: space-between; align-items: center; }
.blad { color: var(--blad); margin: 8px 0; }
.ok { color: var(--ok); margin: 8px 0; }
.opis { color: var(--szary); font-size: 13px; }

pre.dziennik { font: 12px/1.5 ui-monospace, Consolas, monospace; white-space: pre-wrap; max-height: 360px; overflow: auto; margin: 0; }
input[type=date], input[type=number] { padding: 6px 8px; font: inherit; border: 1px solid var(--linia); border-radius: 6px; }

nav.zakladki { display: flex; gap: 4px; border-bottom: 1px solid var(--linia); margin-bottom: 16px; }
nav.zakladki a { padding: 8px 14px; color: var(--szary); border: 1px solid transparent; border-bottom: 0; border-radius: 6px 6px 0 0; }
nav.zakladki a.wybrana { color: var(--tekst); background: var(--karta); border-color: var(--linia); margin-bottom: -1px; font-weight: 600; }
form.filtry { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
form.filtry label { margin: 0; font-weight: normal; }
form.filtry input[type=text] { width: 260px; }
form.filtry button { margin-top: 0; }
table.faktury td, table.faktury th { padding: 6px 8px; font-size: 13px; }
td.bez-lamania { white-space: nowrap; }
.kwota { text-align: right; white-space: nowrap; }
td.pliki a { margin-right: 8px; white-space: nowrap; }
.stronicowanie a { margin: 0 8px; }

/* Konfigurowalne tabele (wwwroot/js/tabele.js) */
table.konfigurowalna th.kolumna { position: relative; cursor: grab; user-select: none; overflow: hidden; text-overflow: ellipsis; }
table.konfigurowalna td { overflow: hidden; text-overflow: ellipsis; }
table.konfigurowalna th.cel { box-shadow: inset 3px 0 0 var(--akcent); }
table.konfigurowalna .uchwyt { position: absolute; top: 0; right: 0; width: 7px; height: 100%; cursor: col-resize; }
table.konfigurowalna .uchwyt:hover { background: var(--linia); }
.pasek-tabeli { position: relative; display: flex; justify-content: flex-end; margin: 4px 0; }
.lista-kolumn { position: absolute; top: 24px; right: 0; z-index: 10; min-width: 220px; padding: 8px 12px;
    background: var(--karta); border: 1px solid var(--linia); border-radius: 6px; box-shadow: 0 4px 12px rgba(0,0,0,.08); }
.lista-kolumn label { margin: 4px 0; }
.lista-kolumn button { margin-top: 8px; }

a.niebezpieczne { color: var(--blad); }
button.niebezpieczny { background: var(--blad); }