* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: #0b0b0b;
  color: #f5f5f5;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

.kontener {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.naglowek {
  position: relative;
  z-index: 10;
  padding: 20px 0;
  background: #0b0b0b;
  border-bottom: 1px solid #262626;
}

.naglowek_srodek {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo_tekst {
  display: flex;
  flex-direction: column;
  color: #ffffff;
  font-size: 18px;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  letter-spacing: 0.04em;
}

.logo_tekst strong {
  margin-top: 3px;
  color: #f5ad18;
  font-size: 25px;
}

.przycisk_powrot {
  padding: 12px 20px;
  background: #f5ad18;
  color: #0b0b0b;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  transition:
    transform 0.2s ease,
    background-color 0.2s ease;
}

.przycisk_powrot:hover {
  background: #f5ad18;
  transform: translateY(-2px);
}

.sekcja_intro {
  padding: 90px 0 72px;
  background:
    radial-gradient(
      circle at 75% 10%,
      rgba(255, 217, 0, 0.12),
      transparent 30%
    ),
    #0b0b0b;
}

.etykieta {
  margin-bottom: 12px;
  color: #f5ad18;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sekcja_intro h1 {
  max-width: 850px;
  margin-bottom: 24px;
  color: #ffffff;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1;
  letter-spacing: -0.045em;
}

.intro_tekst {
  max-width: 760px;
  color: #b8b8b8;
  font-size: 18px;
  line-height: 1.75;
}

.sekcja_tresc {
  padding: 0 0 100px;
}

.karta {
  margin-bottom: 18px;
  padding: 38px 40px;
  background: #141414;
  border: 1px solid #292929;
  border-radius: 18px;
}

.karta h2 {
  margin-bottom: 18px;
  color: #ffffff;
  font-size: 24px;
  line-height: 1.25;
}

.karta p {
  max-width: 900px;
  margin-bottom: 15px;
  color: #bcbcbc;
}

.karta p:last-child {
  margin-bottom: 0;
}

.karta a {
  color: #ffd900;
  font-weight: 700;
  text-decoration: none;
}

.karta a:hover {
  text-decoration: underline;
}

.karta ul {
  margin: 10px 0 18px 22px;
  color: #bcbcbc;
}

.karta li {
  margin-bottom: 8px;
  padding-left: 5px;
}

.karta li::marker {
  color: #f5ad18;
}

.karta_kontakt {
  margin-top: 44px;
  padding: 54px 40px;
  
}

.karta_kontakt h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 5vw, 42px);
}

.przycisk_telefon {
  display: inline-flex;
  min-height: 52px;
  margin-top: 12px;
  padding: 0 26px;
  align-items: center;
  justify-content: center;
  background: #f5ad18;
  color: #0b0b0b !important;
  border-radius: 9px;
  font-size: 17px;
  font-weight: 900;
  text-decoration: none !important;
  transition:
    transform 0.2s ease,
    background-color 0.2s ease;
}

.przycisk_telefon:hover {
  background: #ffe53a;
  transform: translateY(-2px);
}

.stopka {
  padding: 28px 0;
  background: #080808;
  border-top: 1px solid #242424;
}

.stopka_srodek {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.stopka p {
  color: #777777;
  font-size: 14px;
}

.stopka a {
  color: #ffd900;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.stopka a:hover {
  text-decoration: underline;
}

@media (max-width: 700px) {
  .kontener {
    width: min(100% - 28px, 1120px);
  }

  .naglowek {
    padding: 16px 0;
  }

  .logo_tekst {
    font-size: 15px;
  }

  .logo_tekst strong {
    font-size: 21px;
  }

  .przycisk_powrot {
    padding: 10px 14px;
    font-size: 13px;
  }

  .sekcja_intro {
    padding: 64px 0 48px;
  }

  .intro_tekst {
    font-size: 16px;
  }

  .sekcja_tresc {
    padding-bottom: 70px;
  }

  .karta {
    padding: 28px 22px;
    border-radius: 14px;
  }

  .karta h2 {
    font-size: 21px;
  }

  .karta_kontakt {
    padding: 36px 24px;
  }

  .stopka_srodek {
    flex-direction: column;
    align-items: flex-start;
  }
}