:root {
  --yellow: #ffcc00;
  --black: #111;
  --gray: #f5f5f5;
  font-family: 'Segoe UI', Roboto, Arial, sans-serif;
}

body {
  margin: 0;
  color: var(--black);
  background: white;
}

/* Baner */
.banner {
  width: 100%;
  height: 350px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--black);
}
.banner img {
  width: 100%;
  height: auto;
  max-height: 350px;
  object-fit: cover;
}

/* Sekcje */
.section {
  padding: 60px 20px;
  max-width: 1000px;
  margin: 0 auto;
}
.section.alt {
  background: var(--gray);
}

h2 {
  text-align: center;
  color: var(--black);
  border-bottom: 3px solid var(--yellow);
  display: inline-block;
  padding-bottom: 4px;
  margin-bottom: 20px;
}

/* Cennik */
.price-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}
.price-table th, .price-table td {
  padding: 12px 8px;
  border-bottom: 1px solid #ddd;
  text-align: left;
}
.price-table th {
  background: var(--yellow);
  color: var(--black);
}
.note {
  margin-top: 12px;
  text-align: center;
  color: #444;
}

/* Kalkulator */
.calc-box {
  max-width: 400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.calc-box input {
  padding: 8px;
  border-radius: 6px;
  border: 1px solid #ccc;
}
.calc-box button {
  background: var(--yellow);
  color: var(--black);
  font-weight: bold;
  border: none;
  padding: 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.2s;
}
.calc-box button:hover {
  background: #ffd633;
}
.calc-result {
  margin-top: 10px;
  font-weight: bold;
  text-align: center;
}

/* Kontakt */
#contact a {
  color: var(--black);
  font-weight: bold;
  text-decoration: none;
}
#contact a:hover {
  text-decoration: underline;
}

/* Stopka */
footer {
  background: var(--black);
  color: var(--yellow);
  text-align: center;
  padding: 20px 10px;
  font-size: 14px;
}