:root {
  --primary-color: #3498db;
  --secondary-color: #2ecc71;
  --text-color: #ffffff;
  --background-color: #121212;
  --editor-bg: rgba(20, 20, 20, 0.95);
  --editor-border: #333;
  --success-color: #2ecc71;
  --error-color: #e74c3c;
  --animation-factor: 1; /* Výchozí rychlost animací */
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --vh: 1vh; /* Bude nastaveno pomocí JavaScriptu */
}

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

body {
  font-family: 'Poppins', sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  overflow: hidden;
  height: 100%;
  width: 100%;
  position: relative;
  min-height: -webkit-fill-available;
}

html {
  height: -webkit-fill-available;
}

.container {
  width: 100%;
  height: calc(var(--vh, 1vh) * 100);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 10;
  position: relative;
  padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 1rem);
}

.content {
  text-align: center;
  padding: 2rem;
  max-width: 800px;
  z-index: 10;
}

h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
  letter-spacing: 1px;
  animation: fadeIn 1s ease-out;
}

p {
  font-size: 1.3rem;
  line-height: 1.6;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: slideUp 1s ease-out forwards;
  animation-delay: 0.5s;
}

footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  text-align: center;
  padding: 1rem;
  padding-bottom: calc(1rem + var(--safe-area-bottom));
  font-size: 0.9rem;
  opacity: 0.7;
}

/* CTA Button Styles */
.cta-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-size: 1.2rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  opacity: 0;
  animation: fadeIn 1s ease-out forwards;
  animation-delay: 1s;
}

.cta-button:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.cta-button span {
  position: relative;
  z-index: 1;
}

.button-effect {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.cta-button:hover .button-effect {
  opacity: 1;
}

/* Background Animations */
.background-animation {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Grid Background */
.bg-grid .background-animation {
  background-image: 
    linear-gradient(rgba(var(--primary-color-rgb), 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--primary-color-rgb), 0.1) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: gridMove 20s linear infinite;
}

/* Particles Background */
.bg-particles .background-animation {
  overflow: hidden;
}

.bg-particles .background-animation::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle, var(--primary-color) 1px, transparent 1px),
                    radial-gradient(circle, var(--secondary-color) 1px, transparent 1px);
  background-size: 50px 50px;
  background-position: 0 0, 25px 25px;
  animation: particlesFade 8s ease-in-out infinite alternate;
  opacity: 0.3;
}

/* Waves Background */
.bg-waves .background-animation {
  opacity: 0.3;
  background: linear-gradient(125deg, var(--primary-color) 25%, transparent 25%) -50px 0,
              linear-gradient(225deg, var(--primary-color) 25%, transparent 25%) -50px 0,
              linear-gradient(315deg, var(--primary-color) 25%, transparent 25%),
              linear-gradient(45deg, var(--primary-color) 25%, transparent 25%);
  background-size: 100px 100px;
  background-color: var(--background-color);
  animation: waveMove 10s linear infinite;
}

/* Editor Panel */
.editor-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 400px;
  height: calc(var(--vh, 1vh) * 100);
  background-color: var(--editor-bg);
  border-left: 1px solid var(--editor-border);
  padding: 2rem;
  padding-bottom: calc(2rem + var(--safe-area-bottom));
  overflow-y: auto;
  z-index: 100;
  box-shadow: -5px 0 15px rgba(0, 0, 0, 0.3);
}

.editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--editor-border);
}

.editor-header h2 {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.logout-btn {
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.logout-btn:hover {
  opacity: 1;
}

.editor-section {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--editor-border);
}

.editor-section h3 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
  opacity: 0.9;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  opacity: 0.8;
}

.form-group input[type="text"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.8rem;
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--editor-border);
  border-radius: 4px;
  color: var(--text-color);
  font-family: 'Poppins', sans-serif;
  transition: border-color 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.color-input-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.color-input-wrapper input[type="color"] {
  width: 50px;
  height: 40px;
  border: none;
  border-radius: 4px;
  background: none;
  cursor: pointer;
}

.color-input-wrapper .color-text {
  flex: 1;
  font-family: monospace;
}

.save-btn {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-color);
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  width: 100%;
  margin-top: 1rem;
  margin-bottom: calc(1rem + var(--safe-area-bottom));
}

.save-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

.success-message {
  background-color: rgba(46, 204, 113, 0.2);
  border: 1px solid var(--success-color);
  color: var(--success-color);
  padding: 0.8rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
  text-align: center;
}

.error-message {
  background-color: rgba(231, 76, 60, 0.2);
  border: 1px solid var(--error-color);
  color: var(--error-color);
  padding: 0.8rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
  text-align: center;
}

/* Login Panel */
.login-trigger {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 90;
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.login-trigger:hover {
  opacity: 1;
}

/* Informace o verzi */
.version-info {
  position: fixed;
  bottom: 20px;
  left: 20px;
  width: 50px;
  height: 50px;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 90;
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.version-info:hover {
  opacity: 1;
}

.version-info:hover .version-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.version-tooltip {
  position: absolute;
  bottom: 60px;
  left: 0;
  background-color: var(--editor-bg);
  padding: 1rem;
  border-radius: 4px;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.version-tooltip p {
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
  opacity: 0.8;
  animation: none;
}

.login-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.login-panel.active {
  opacity: 1;
  visibility: visible;
}

.login-content {
  background-color: var(--editor-bg);
  padding: 2rem;
  border-radius: 8px;
  width: 90%;
  max-width: 400px;
  position: relative;
}

.login-content h3 {
  margin-bottom: 1.5rem;
  text-align: center;
  color: var(--primary-color);
}

.login-btn {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-color);
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  width: 100%;
  margin-top: 1rem;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

.close-login-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.close-login-btn:hover {
  opacity: 1;
}

/* Animations */
/* Animace s proměnnou rychlostí */
h1 {
  animation-duration: calc(1s * var(--animation-factor));
}

p {
  animation-delay: calc(0.5s * var(--animation-factor));
}

.cta-button {
  animation-delay: calc(1s * var(--animation-factor));
}

.bg-grid .background-animation {
  animation-duration: calc(20s * var(--animation-factor));
}

.bg-particles .background-animation::before {
  animation-duration: calc(8s * var(--animation-factor));
}

.bg-waves .background-animation {
  animation-duration: calc(10s * var(--animation-factor));
}

.particle {
  animation-duration: calc(15s * var(--animation-factor));
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes gridMove {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 40px 40px;
  }
}

@keyframes particlesFade {
  0% {
    opacity: 0.2;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(1.1);
  }
  100% {
    opacity: 0.2;
    transform: scale(1);
  }
}

@keyframes waveMove {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 100px 100px;
  }
}

/* Media Queries */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  
  p {
    font-size: 1.1rem;
  }
  
  .cta-button {
    padding: 0.8rem 2rem;
    font-size: 1rem;
  }
  
  .editor-panel {
    width: 100%;
    padding-bottom: calc(4rem + var(--safe-area-bottom));
  }
  
  .save-btn {
    position: sticky;
    bottom: calc(1rem + var(--safe-area-bottom));
    margin-bottom: 0;
  }
}

/* Fix CSS variables for RGB values */
:root {
  --primary-color-rgb: 52, 152, 219;
  --secondary-color-rgb: 46, 204, 113;
}

/* Styly pro částice */
.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--primary-color);
  opacity: 0.5;
  animation: float 15s infinite ease-in-out;
}

.particle:nth-child(even) {
  background: var(--secondary-color);
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) translateX(0);
  }
  25% {
    transform: translateY(-20px) translateX(10px);
  }
  50% {
    transform: translateY(0) translateX(20px);
  }
  75% {
    transform: translateY(20px) translateX(10px);
  }
} 

.form-group input[type="password"] {
  width: 100%;
  padding: 0.8rem;
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--editor-border);
  border-radius: 4px;
  color: var(--text-color);
  font-family: 'Poppins', sans-serif;
  transition: border-color 0.3s ease;
}

.form-group input[type="password"]:focus {
  outline: none;
  border-color: var(--primary-color);
  background-color: rgba(255, 255, 255, 0.15);
}