/* Soubor css/styles_introduce.css */





* {

  margin: 0;

  padding: 0;

  box-sizing: border-box;

}



html {

  font-size: 16px; /* základní velikost písma desktop */

}



body {

  font-family: "Helvetica", Arial, sans-serif;

  color: #222;

  min-height: 100vh;

  display: flex;

  flex-direction: column;

  align-items: center;

  line-height: 1.6;

}



/* ====================

   OBECNÉ ROZLOŽENÍ

   ==================== */

.main-index {

  text-align: center;

  padding: 100px 20px 60px 20px;

  flex: 1;

}



/* Nadpisy */

h1 {

  font-size: 1.4rem; /* 32px */

  font-weight: 700;

  letter-spacing: 1px;

  margin-bottom: 1rem;

}





/* Texty a odstavce */

p {

  text-align: center;

  padding: 0.625rem 0; /* 10px */

  font-size: 1.1rem;  /* 17.6px */

  max-width: 37.5rem; /* 600px */

}



/* Dekorativní vlna */

.wave-icon {

  font-size: 3rem; /* 48px */

  margin: 1.25rem 0 2.5rem 0; /* 20px a 40px */

  color: #0077cc;

  text-align: center;

  animation: waveFloat 3s ease-in-out infinite;

}



@keyframes waveFloat {

  0%, 100% { transform: translateY(0); }

  50% { transform: translateY(-0.3125rem); } /* -5px */

}



/* Tlačítka a odkazy */

.link-list {

  display: flex;

  flex-direction: column;

  gap: 1.5625rem; /* 25px */

  align-items: center;

  margin-top: 0.9375rem; /* 15px */

  margin-bottom: 1.5625rem; /* 25px */

}



.main-link {

  background: #0077cc;

  color: #fff;

  text-decoration: none; 

  font-size: 1.8rem; /* 28.8px */

  font-weight: 600;

  padding: 1.125rem 1.875rem; /* 18px 30px */

  border-radius: 50px;

  transition: 0.3s;

}



.main-link:hover {

  background: #005fa3;

  transform: translateY(-0.125rem); /* -2px */

}



.small-link {

  color: #004aad;

  text-decoration: underline;

  font-size: 1.5rem; /* 24px */

  transition: 0.3s;

}



.small-link:hover {

  color: #002f73;

  text-decoration: none;

}



/* Footer */

.footer p {

  margin: 0;

  font-size: 0.6rem; /* 9.6px */

  letter-spacing: 0.5px;

  text-align: center;

  color: #222;

  padding: 0.9375rem 0; /* 15px */

}



/* ===================================

   RESPONZIVNÍ STYLY – MOBIL

   =================================== */

@media (max-width: 600px) {

  html {

    font-size: 14px; /* o něco větší než desktop, zachová proporce */

  }



  .main-index {

    padding: 4.375rem 0.9375rem 2.5rem 0.9375rem; /* 70px 15px 40px 15px */

  }



  h1 {

    font-size: 1.5rem; /* zachování proporce */

    margin-bottom: 0.9375rem;

  }



  .wave-icon {

    font-size: 3.125rem;

    margin-bottom: 1.25rem;

  }



  .main-index p {

    font-size: 1.2rem;

    line-height: 1.6;

    padding: 0 0.625rem;

    margin-top: 0.9375rem;

  }



  .main-link {

    font-size: 1.9rem;

    padding: 1.125rem 1.875rem;

  }



  .small-link {

    font-size: 1.5625rem;

  }



  .footer p {

    font-size: 0.65rem;

    padding: 0.625rem 0;

  }

}