@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap');

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background-color: #000000;
  color: #00aaff;
  font-family: 'Share Tech Mono', monospace;
  overflow-x: hidden;
  user-select: none;
  background-image:
    radial-gradient(circle at center, #002233 0%, #000000 80%);
  position: relative;
  height: 100vh;
}

/* Přístupová obrazovka */
#access-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  flex-direction: column;
  text-align: center;
  padding: 20px;
}

.access-box {
  border: 2px solid #00aaff;
  box-shadow: 0 0 20px #00aaff, inset 0 0 30px #00aaff;
  padding: 40px;
  max-width: 420px;
  border-radius: 10px;
}

#access-screen p {
  font-size: 2rem;
  color: #00aaff;
  margin-bottom: 20px;
}

.blink {
  animation: blink 1s steps(1, start) infinite;
}

#access-input {
  background: transparent;
  border: 1px solid #00aaff;
  color: #00aaff;
  padding: 12px;
  width: 100%;
  font-size: 1.4rem;
  text-shadow: 0 0 10px #00aaff;
}

#access-btn {
  margin-top: 20px;
  padding: 12px 32px;
  background: transparent;
  color: #00aaff;
  border: 2px solid #00aaff;
  cursor: pointer;
  font-size: 1.2rem;
  transition: 0.3s;
  box-shadow: 0 0 10px #00aaff;
}

#access-btn:hover {
  background: #00aaff;
  color: #000;
  box-shadow: 0 0 30px #00aaff, inset 0 0 20px #00aaff;
}

#error-msg {
  color: #ff3333;
  margin-top: 15px;
  font-weight: bold;
  text-shadow: 0 0 10px #ff3333;
}

/* Welcome zpráva */
.welcome-message {
  font-size: 1.6rem;
  text-align: center;
  color: #00aaff;
  text-shadow: 0 0 20px #00aaff;
  animation: glitch 1.5s infinite;
  margin: 100px 20px;
}

/* Boot screen */
#boot-screen {
  background: #000;
  color: #00aaff;
  padding: 20px;
  height: 100vh;
  font-family: 'Share Tech Mono', monospace;
  white-space: pre-wrap;
  font-size: 16px;
  text-shadow: 0 0 10px #00aaff;
}

/* Načítací obrazovka */
#loader-screen {
  background-color: #000;
  color: #00aaff;
  height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Share Tech Mono', monospace;
  text-shadow: 0 0 10px #00aaff;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
}

.loader-container {
  text-align: center;
  animation: flicker 2s infinite alternate;
}

.loading-text {
  font-size: 1.8rem;
  padding: 30px;
}

/* Hlavní obsah */
.container {
  padding: 40px;
  max-width: 960px;
  margin: 0 auto;
  z-index: 1;
}

.title {
  font-size: 4rem;
  text-align: center;
  color: #00aaff;
  animation: flicker 2s infinite alternate;
  text-shadow: 0 0 10px #00aaff;
}

.subtitle {
  text-align: center;
  color: #00ccff;
  margin-bottom: 40px;
  font-size: 1.2rem;
  animation: flicker 2.5s infinite alternate;
}

/* Menu */
nav {
  display: flex;
  justify-content: center;
  gap: 35px;
  margin-bottom: 40px;
}

nav a {
  color: #00aaff;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  border-bottom: 1px dashed #00aaff;
  cursor: pointer;
  transition: 0.3s;
}

nav a:hover {
  color: #00ccff;
  text-shadow: 0 0 10px #00ccff;
}

/* Obsah */
.main {
  background: rgba(0, 170, 255, 0.05);
  padding: 30px 40px;
  border: 1px dashed #00aaff;
  border-radius: 8px;
  box-shadow: 0 0 20px #00aaff inset;
}

.main h2,
.main p,
.main ul {
  text-shadow: 0 0 10px #00aaff;
}

.main ul {
  list-style: none;
  padding-left: 0;
}

.main ul li {
  margin-bottom: 14px;
}

/* Sekce */
.content-section {
  padding: 40px;
  animation: fadeIn 1s ease;
}

.content-section h2 {
  color: #00ccff;
  font-size: 2rem;
  margin-bottom: 20px;
}

footer {
  text-align: center;
  margin-top: 40px;
  color: #004466;
  font-size: 0.9rem;
  text-shadow: 0 0 10px #004466;
}

.sig {
  color: #00aaff;
}

/* Efekty */
.hidden {
  display: none !important;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

@keyframes glitch {
  0% {
    text-shadow:
      2px 0 #00aaff,
      -2px 0 #00aaff;
  }
  50% {
    text-shadow:
      4px 0 #00ccff,
      -4px 0 #00ccff;
  }
  100% {
    text-shadow:
      2px 0 #00aaff,
      -2px 0 #00aaff;
  }
}

@keyframes flicker {
  0%, 20%, 22%, 100% {
    opacity: 1;
  }
  21% {
    opacity: 0.5;
  }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.overlay-grid {
  position: fixed;
  z-index: 0;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(#00aaff20 1px, transparent 1px),
    linear-gradient(90deg, #00aaff20 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
  animation: gridPulse 3s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% {
    background-position: 0 0, 0 0;
  }
  50% {
    background-position: 10px 10px, 10px 10px;
  }
}