:root {
  --head: 4.5rem;
  --sand: #f4ead2;
  --ink: #2a1d12;
  --gold: #c9892a;
  --clay: #8c4a1f;
  --paper: #fffaf0;
  --mute: #6b5748;
  --serif: "Literata", "Iowan Old Style", serif;
  --sans: "Manrope", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--head) + 0.75rem); }
body { margin: 0; background: var(--sand); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.65; }
img { max-width: 100%; display: block; }
a { color: var(--clay); }
.skip { position: absolute; left: -999px; background: var(--ink); color: var(--sand); padding: 0.5rem 0.8rem; }
.skip:focus { left: 1rem; top: 1rem; z-index: 40; }

.head { display: flex; align-items: center; gap: 1rem; padding: 0.85rem 1.2rem; min-height: var(--head); position: sticky; top: 0; background: var(--sand); border-bottom: 1px solid rgba(42,29,18,0.12); z-index: 20; }
.logo { display: flex; gap: 0.7rem; align-items: center; text-decoration: none; color: var(--ink); min-width: 0; }
.sun { width: 36px; height: 36px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #ffe7a3, var(--gold) 55%, var(--clay)); box-shadow: 0 0 0 4px rgba(201,137,42,0.25); flex-shrink: 0; }
.logo strong { display: block; font-size: 0.82rem; letter-spacing: 0.08em; }
.logo small { display: block; font-size: 0.7rem; color: var(--mute); }
nav { display: none; gap: 0.9rem; margin-left: auto; }
nav a { color: var(--ink); text-decoration: none; font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; }
.mail { display: none; background: var(--ink); color: var(--sand); text-decoration: none; padding: 0.4rem 0.7rem; font-size: 0.78rem; }
.burger { margin-left: auto; width: 42px; height: 42px; border: 1px solid var(--ink); background: transparent; cursor: pointer; position: relative; }
.burger span, .burger span::before, .burger span::after { content: ""; display: block; width: 18px; height: 2px; background: var(--ink); position: absolute; left: 11px; }
.burger span { top: 20px; }
.burger span::before { top: -6px; }
.burger span::after { top: 6px; }
.panel { display: grid; padding: 0.9rem 1.2rem; background: #efe4c8; position: fixed; top: var(--head); left: 0; right: 0; z-index: 19; max-height: calc(100dvh - var(--head)); overflow: auto; box-shadow: 0 16px 28px rgba(42,29,18,0.12); }
.panel[hidden] { display: none !important; }
.panel a { padding: 0.45rem 0; color: var(--ink); text-decoration: none; border-bottom: 1px solid rgba(42,29,18,0.12); }

.hero { padding: 3rem 1.2rem 3.2rem; background: linear-gradient(180deg, #f8f0dc, var(--sand)); }
.kicker { letter-spacing: 0.16em; text-transform: uppercase; font-size: 0.72rem; color: var(--clay); margin: 0 0 0.7rem; }
h1 { font-family: var(--serif); font-size: clamp(2.1rem, 6vw, 3.6rem); line-height: 1.12; font-weight: 500; margin: 0 0 1rem; max-width: 16ch; }
h1 em { font-style: italic; color: var(--clay); }
.lead { max-width: 66ch; color: var(--mute); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 1.4rem 0; }
.btn { display: inline-flex; background: var(--ink); color: var(--sand); text-decoration: none; border: 0; padding: 0.8rem 1.15rem; font: 700 0.95rem/1 var(--sans); cursor: pointer; }
.ghost { color: var(--ink); align-self: center; text-decoration: none; border-bottom: 1px solid var(--clay); }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem; margin: 1.6rem 0 0; }
.facts dt { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--clay); }
.facts dd { margin: 0.2rem 0 0; font-family: var(--serif); }

section, form { scroll-margin-top: calc(var(--head) + 0.75rem); }
section { padding: 3.2rem 1.2rem; }
h2 { font-family: var(--serif); font-size: clamp(1.6rem, 3.5vw, 2.3rem); font-weight: 500; max-width: 22ch; }
.split, .energy-grid, .build-grid, .noty-grid { display: grid; gap: 1.2rem; }
.split p, .energia p, .budowa p, .kontakt p { color: var(--mute); }
.holding { background: var(--paper); }
.energia { background: radial-gradient(700px 280px at 10% 0%, rgba(201,137,42,0.2), transparent), var(--sand); }
.sunpath { background: var(--paper); border: 1px solid rgba(42,29,18,0.1); padding: 1.2rem; margin: 1.2rem 0; }
.dial { width: min(100%, 320px); height: 160px; margin: 0 auto 1rem; position: relative; overflow: hidden; background: linear-gradient(#cfe4f0, #f4ead2); border-radius: 160px 160px 0 0; }
.beam { position: absolute; width: 4px; height: 140px; left: 50%; bottom: 0; background: linear-gradient(var(--gold), transparent); transform-origin: bottom center; transform: translateX(-50%) rotate(0deg); }
.core { position: absolute; width: 28px; height: 28px; border-radius: 50%; background: var(--gold); left: calc(50% - 14px); bottom: -8px; }
.sunpath label { display: grid; gap: 0.4rem; font-size: 0.85rem; }
input[type="range"] { width: 100%; accent-color: var(--gold); }
.energy-grid article { background: var(--paper); padding: 1.1rem; border-top: 4px solid var(--gold); }
.build-grid img { height: 280px; width: 100%; object-fit: cover; }
.build-grid figcaption, .build-grid li { color: var(--mute); }
.sciezka { background: var(--ink); color: var(--sand); }
.sciezka .kicker { color: var(--gold); }
.sciezka ol { list-style: none; padding: 0; display: grid; gap: 1.1rem; }
.sciezka h3 { font-family: var(--serif); font-weight: 500; margin: 0 0 0.3rem; }
.sciezka p { color: #d8cbb8; }
.sciezka a { color: var(--gold); }
.noty-grid article { padding: 1rem 0; border-top: 1px solid rgba(42,29,18,0.12); }
.faq details { border-bottom: 1px solid rgba(42,29,18,0.14); padding: 0.8rem 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--mute); }
.krs { background: var(--paper); }
.table > div { display: grid; gap: 0.2rem; padding: 0.75rem 0; border-bottom: 1px solid rgba(42,29,18,0.12); }
.table span { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--clay); }
.fine { color: var(--mute); font-size: 0.88rem; }
.kontakt { display: grid; gap: 1.4rem; }
address { font-style: normal; line-height: 1.7; margin: 1rem 0; }
form { display: grid; gap: 0.75rem; background: var(--paper); padding: 1.15rem; border: 1px solid rgba(42,29,18,0.12); }
label { display: grid; gap: 0.3rem; font-size: 0.82rem; }
input, select, textarea { font: 1rem/1.4 var(--sans); padding: 0.6rem; border: 1px solid rgba(42,29,18,0.2); background: #fff; color: var(--ink); }
.form-note, .form-status { font-size: 0.9rem; color: var(--mute); }
.form-status.ok { color: var(--clay); }
footer { padding: 1.8rem 1.2rem 2.5rem; background: var(--ink); color: #d8cbb8; font-size: 0.9rem; }
footer strong { color: var(--sand); display: block; margin-bottom: 0.4rem; font-family: var(--serif); }
footer a { color: var(--gold); }

@media (min-width: 880px) {
  nav, .mail { display: flex; }
  .burger { display: none; }
  .panel, .panel[hidden] { display: none !important; }
  .hero, section, footer { padding-left: 7vw; padding-right: 7vw; }
  .facts { grid-template-columns: repeat(4, 1fr); }
  .split, .energy-grid, .build-grid, .kontakt { grid-template-columns: 1fr 1fr; align-items: start; }
  .noty-grid { grid-template-columns: 1fr 1fr; }
  .sciezka ol { grid-template-columns: 1fr 1fr; }
  .table > div { grid-template-columns: 240px 1fr; }
}
@media (min-width: 1100px) {
  .noty-grid { grid-template-columns: repeat(3, 1fr); }
  .sciezka ol { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 520px) {
  .logo small { display: none; }
  h1 { overflow-wrap: anywhere; }
}