/* Księgowość OK – kolorystyka niebiesko-szara */
:root {
  --granat: #1e3a5f;
  --niebieski: #2563eb;
  --niebieski-jasny: #dbeafe;
  --szary-ciemny: #334155;
  --szary: #64748b;
  --szary-jasny: #e2e8f0;
  --tlo: #f1f5f9;
  --bialy: #ffffff;
  --promien: 12px;
  --cien: 0 6px 24px rgba(30, 58, 95, .10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif; color: var(--szary-ciemny); background: var(--tlo); line-height: 1.6; }
a { color: var(--niebieski); }
.kontener { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* nagłówek */
header { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--szary-jasny); backdrop-filter: blur(6px); }
header .kontener { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-weight: 800; font-size: 1.35rem; color: var(--granat); text-decoration: none; letter-spacing: -.02em; }
.logo span { color: var(--niebieski); }
nav a { margin-left: 22px; color: var(--szary-ciemny); text-decoration: none; font-weight: 500; }
nav a:hover { color: var(--niebieski); }
nav .przycisk { margin-left: 22px; }
.menu-btn { display: none; background: none; border: 0; font-size: 1.6rem; color: var(--granat); }

/* przyciski */
.przycisk { display: inline-block; padding: 11px 22px; border-radius: 8px; background: var(--niebieski); color: #fff !important; text-decoration: none; font-weight: 600; border: 0; cursor: pointer; font-size: 1rem; }
.przycisk:hover { background: #1d4ed8; }
.przycisk.jasny { background: var(--bialy); color: var(--granat) !important; border: 1px solid var(--szary-jasny); }

/* hero */
.hero { background: linear-gradient(135deg, var(--granat) 0%, #2d4f7c 55%, var(--szary) 100%); color: #fff; padding: 96px 0 88px; }
.hero h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); line-height: 1.15; margin: 0 0 18px; letter-spacing: -.02em; }
.hero p { font-size: 1.15rem; max-width: 640px; color: #dbe4ef; margin: 0 0 30px; }
.hero .przyciski { display: flex; gap: 12px; flex-wrap: wrap; }
.atuty { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 44px; color: #cfdbe9; font-size: .95rem; }
.atuty b { color: #fff; font-size: 1.4rem; display: block; }

/* sekcje */
section { padding: 80px 0; }
section.biala { background: var(--bialy); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--granat); margin: 0 0 12px; letter-spacing: -.01em; }
.podtytul { color: var(--szary); max-width: 700px; margin: 0 0 40px; }
.siatka { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; }
.karta { background: var(--bialy); border: 1px solid var(--szary-jasny); border-radius: var(--promien); padding: 26px; box-shadow: var(--cien); }
section.biala .karta { background: var(--tlo); box-shadow: none; }
.karta h3 { margin: 0 0 8px; color: var(--granat); font-size: 1.15rem; }
.karta p { margin: 0; color: var(--szary); }
.ikona { width: 44px; height: 44px; border-radius: 10px; background: var(--niebieski-jasny); color: var(--niebieski); display: grid; place-items: center; font-size: 1.3rem; margin-bottom: 14px; }

/* cennik */
.cennik { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 22px; }
.cennik table { width: 100%; border-collapse: collapse; }
.cennik td { padding: 7px 0; border-bottom: 1px solid var(--szary-jasny); }
.cennik td:last-child { text-align: right; font-weight: 600; color: var(--granat); white-space: nowrap; }
.uwaga { font-size: .85rem; color: var(--szary); margin-top: 16px; }

/* kalkulator */
#kalkulator .uklad { display: grid; grid-template-columns: 1.15fr 1fr; gap: 26px; }
.pole { margin-bottom: 16px; }
.pole label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--granat); }
.pole input[type=number], .pole select, form input, form textarea { width: 100%; padding: 10px 12px; border: 1px solid #cbd5e1; border-radius: 8px; font: inherit; background: #fff; }
.pole input:focus, form input:focus, form textarea:focus, select:focus { outline: 2px solid var(--niebieski-jasny); border-color: var(--niebieski); }
.wybor { display: flex; gap: 10px; }
.wybor label { flex: 1; border: 1px solid #cbd5e1; border-radius: 8px; padding: 12px; cursor: pointer; font-weight: 600; text-align: center; background: #fff; }
.wybor input { display: none; }
.wybor input:checked + span { color: var(--niebieski); }
.wybor label:has(input:checked) { border-color: var(--niebieski); background: var(--niebieski-jasny); }
.dwie-pola { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.check { display: flex; gap: 10px; align-items: center; margin: 8px 0; font-weight: 500; color: var(--szary-ciemny); }
.wynik { background: var(--granat); color: #fff; border-radius: var(--promien); padding: 26px; position: sticky; top: 90px; align-self: start; }
.wynik table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.wynik td { padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,.14); color: #dbe4ef; }
.wynik td.kw { text-align: right; white-space: nowrap; color: #fff; }
.wynik .suma { font-size: 2rem; font-weight: 800; margin: 18px 0 2px; }
.wynik .brutto, .wynik .info { color: #b9c7d8; font-size: .9rem; }

/* panel klienta, umowa */
.panel { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
.lista { list-style: none; padding: 0; margin: 0 0 24px; }
.lista li { padding: 6px 0 6px 30px; position: relative; }
.lista li::before { content: "✓"; position: absolute; left: 0; color: var(--niebieski); font-weight: 800; }
.makieta { background: var(--bialy); border-radius: var(--promien); box-shadow: var(--cien); padding: 22px; border: 1px solid var(--szary-jasny); }
.makieta .wiersz { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--szary-jasny); }
.makieta .wiersz b { color: var(--granat); }
.status { font-size: .8rem; padding: 2px 8px; border-radius: 20px; background: var(--niebieski-jasny); color: var(--niebieski); }
form .dwie { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
form label { font-weight: 600; color: var(--granat); display: block; margin: 12px 0 6px; }
.kroki { counter-reset: k; list-style: none; padding: 0; }
.kroki li { counter-increment: k; padding: 10px 0 10px 48px; position: relative; }
.kroki li::before { content: counter(k); position: absolute; left: 0; top: 8px; width: 34px; height: 34px; border-radius: 50%; background: var(--niebieski); color: #fff; display: grid; place-items: center; font-weight: 700; }
.sukces { background: #dcfce7; color: #166534; padding: 12px 16px; border-radius: 8px; margin-top: 14px; }

footer { background: var(--granat); color: #cbd5e1; padding: 44px 0; font-size: .92rem; }
footer .kontener { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
footer b { color: #fff; }
footer a { color: #cbd5e1; }

@media (max-width: 860px) {
  #kalkulator .uklad, .panel { grid-template-columns: 1fr; }
  .wynik { position: static; }
  nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff; padding: 12px 20px; border-bottom: 1px solid var(--szary-jasny); }
  nav.otwarte { display: block; }
  nav a { display: block; margin: 10px 0; }
  nav .przycisk { margin-left: 0; text-align: center; }
  .menu-btn { display: block; }
  form .dwie { grid-template-columns: 1fr; }
}