/* RESET - volitelné, pokud nějaký reset používáš
------------------------------------------------*/
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  background: #000000; /* Černé pozadí */
}

/* Resetování základního pozadí */
body {
  background: linear-gradient(135deg, #0d0d0d, #1a1a1a); /* Pokud chcete přechod */
  margin: 0;
}

/* Tělo stránky
------------------------------------------------*/
body {
  font-family: 'Poppins', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  flex-direction: column;
  background: linear-gradient(135deg, #0d0d0d, #1a1a1a);
  color: #ffd700;
  text-align: center;
  padding: 0 20px;
}

/* Hlavní (hero) sekce
------------------------------------------------*/
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 70vh;
  width: 100%;
  padding: 20px;
}

/* Nadpis
------------------------------------------------*/
.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  color: #ffeb3b;
  text-shadow: 0 5px 15px rgba(0, 0, 0, 0.9), 0 0 20px rgba(255, 235, 59, 1);
  animation: fadeInDown 1s ease-out forwards, textGlow 3s infinite;
  font-weight: bold;
  letter-spacing: 2px;
}

/* Podnadpis
------------------------------------------------*/
.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: #ffc107;
  line-height: 1.5;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
}

/* Kontejner pro tlačítka
------------------------------------------------*/
.button-wrapper {
  display: flex;
  justify-content: center;
}

/* Tlačítko
------------------------------------------------*/
button {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0d0d0d;
  background: linear-gradient(135deg, #ffd700, #ffeb3b);
  border: none;
  border-radius: 50px;
  padding: 15px 40px;
  cursor: pointer;
  transition: transform 0.3s ease, background 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  text-transform: uppercase;
}

button:hover {
  background: linear-gradient(135deg, #ffeb3b, #ffd700);
  color: #000;
  transform: translateY(-5px) scale(1.1);
  box-shadow: 0 12px 30px rgba(255, 215, 0, 0.6);
}

button:active {
  transform: scale(0.95);
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.3);
}

/* Textová animace - jemný "glow" efekt */
@keyframes textGlow {
  0% {
      text-shadow: 0 5px 15px rgba(0, 0, 0, 0.9), 0 0 20px rgba(255, 235, 59, 0.5);
  }
  50% {
      text-shadow: 0 5px 25px rgba(0, 0, 0, 0.9), 0 0 30px rgba(255, 235, 59, 1);
  }
  100% {
      text-shadow: 0 5px 15px rgba(0, 0, 0, 0.9), 0 0 20px rgba(255, 235, 59, 0.5);
  }
}

/* Klíčové snímky animací
------------------------------------------------*/
@keyframes fadeInDown {
  0% {
      opacity: 0;
      transform: translateY(-50px);
  }
  80% {
      opacity: 1;
      transform: translateY(10px);
  }
  100% {
      transform: translateY(0);
  }
}

/* Responzivita
------------------------------------------------*/
@media (max-width: 768px) {
  .hero h1 {
      font-size: 2.5rem;
  }

  .hero p {
      font-size: 1rem;
  }

  button {
      font-size: 1.2rem;
      padding: 12px 30px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
      font-size: 2rem;
  }

  .hero p {
      font-size: 0.9rem;
  }

  button {
      font-size: 1rem;
      padding: 10px 20px;
  }
}