/* ANIMOVANÉ POZADÍ */
body {
  margin: 0;
  padding-top: 60px;
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  color: white;
  font-family: 'Courier New', Courier, monospace;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* NEONOVÉ MENU */
#horni-menu {
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px); /* Rozmaže pozadí pod menu */
  border-bottom: 2px solid #00ffcc;
}

#horni-menu a {
  text-transform: uppercase;
  letter-spacing: 2px;
  text-shadow: 0 0 10px #00ffcc;
}

/* ŠÍLENÝ HLAVNÍ PANEL */
main {
  background: rgba(0, 0, 0, 0.7);
  margin: 40px auto;
  padding: 30px;
  border: 5px double #00ffcc;
  transform: skewY(-1deg); /* Celá stránka je lehce nakřivo */
  box-shadow: 20px 20px 0px rgba(255, 0, 255, 0.5);
}

h1 {
  font-size: 3rem;
  text-align: center;
  animation: glitch 1s linear infinite;
}

/* GLITCH EFEKT PRO NADPIS */
@keyframes glitch {
  2% { text-shadow: 2px 0 0 red, -2px 0 0 blue; }
  4% { text-shadow: -2px 0 0 red, 2px 0 0 blue; }
  6% { text-shadow: 2px 0 0 red, -2px 0 0 blue; }
}

/* OBRÁZKY S FILTRY */
.uvodni-obrazek img {
  filter: sepia(1) hue-rotate(180deg) contrast(1.5);
  transition: 0.5s;
  width: 100%;
}

.uvodni-obrazek img:hover {
  filter: none;
  transform: rotate(360deg) scale(0.8); /* Obrázek se při najetí roztočí */
}

/* TABULKA JAKO MATRIX */
table {
  background: black;
  color: #00ff00;
}

th { background: #004400; }

/* GALERIE - 3D EFEKT */
.galerie img {
  filter: grayscale(100%);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%); /* Obrázky budou ve tvaru kosočtverce */
  transition: 0.3s;
}

.galerie img:hover {
  filter: grayscale(0%);
  clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 0% 100%);
  transform: translateY(-20px);
}

/* OVERLAY S DUHOVÝM OKRAJEM */
.overlay img {
  border: 10px solid;
  border-image: linear-gradient(to right, red, orange, yellow, green, blue, indigo, violet) 1;
  animation: rotateBorder 2s linear infinite;
}

@keyframes rotateBorder {
  to { filter: hue-rotate(360deg); }
}