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

body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Animated background particles */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.particle {
  position: absolute;
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.particle.red {
  background: rgba(255, 107, 107, 0.3);
}

.particle.purple {
  background: rgba(147, 51, 234, 0.3);
}

@keyframes float {

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

  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}



/* Main container */
.container {
  position: relative;
  z-index: 10;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}

/* Logo styling */
.logo {
  font-family: "DynaPuff", cursive;
  font-weight: 800;
  font-size: clamp(4rem, 12vw, 8rem);
  color: #ff6b6b;
  text-shadow:
    0 0 10px rgba(255, 107, 107, 0.6),
    0 0 20px rgba(255, 107, 107, 0.4),
    0 0 30px rgba(255, 107, 107, 0.2);
  margin-bottom: 2rem;
  animation: glow 2s ease-in-out infinite alternate;
  letter-spacing: -2px;
}

@keyframes glow {
  from {
    text-shadow: 0 0 10px rgba(255, 107, 107, 0.6), 0 0 20px rgba(255, 107, 107, 0.4), 0 0 30px rgba(255, 107, 107, 0.2);
  }

  to {
    text-shadow: 0 0 15px rgba(255, 107, 107, 0.8), 0 0 30px rgba(255, 107, 107, 0.5), 0 0 45px rgba(255, 107, 107, 0.3);
  }
}

/* App icon */
.app-icon {
  width: clamp(120px, 25vw, 200px);
  height: clamp(120px, 25vw, 200px);
  border-radius: 24px;
  margin-bottom: 2rem;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.3),
    0 10px 30px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(255, 255, 255, 0.1);
  animation: bounce 3s ease-in-out infinite;
  filter: drop-shadow(0 0 30px rgba(255, 255, 255, 0.4));
}

@keyframes bounce {

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

  50% {
    transform: translateY(-10px);
  }
}

/* Tagline */
.tagline {
  font-size: clamp(1.2rem, 4vw, 2rem);
  color: #4ecdc4;
  margin-bottom: 3rem;
  font-weight: 400;
  letter-spacing: 1px;
  animation: fadeInUp 1s ease-out 0.5s both;
  text-shadow: 0 0 10px rgba(78, 205, 196, 0.5);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Email signup */
.signup-section {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  padding: 3rem 2rem;
  max-width: 500px;
  width: 100%;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease-out 1.5s both;
}

.signup-description {
  color: #f7f7f7;
  margin-bottom: 2rem;
  line-height: 1.6;
  font-weight: 300;
}

.email-form {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.email-input {
  flex: 1;
  min-width: 250px;
  padding: 1rem 1.5rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 1rem;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.email-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.email-input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.8);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.notify-btn {
  padding: 1rem 2rem;
  background: linear-gradient(135deg, #ff6b6b, #ff4757);
  border: none;
  border-radius: 12px;
  color: white;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.notify-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 107, 107, 0.6);
}



/* Dark mode toggle */
.dark-mode-toggle {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dark-mode-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

.toggle-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

/* Dark mode styles */
.dark-mode {
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --accent-primary: #ff6b6b;
  --accent-secondary: #4ecdc4;
  --border-color: rgba(255, 255, 255, 0.1);
  --shadow-color: rgba(0, 0, 0, 0.5);
}

.dark-mode body {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, #0f0f0f 100%);
  color: var(--text-primary);
}

.dark-mode .particle {
  background: rgba(255, 107, 107, 0.3);
}

.dark-mode .particle.red {
  background: rgba(255, 107, 107, 0.4);
}

.dark-mode .particle.purple {
  background: rgba(156, 39, 176, 0.4);
}

.dark-mode .logo {
  color: var(--accent-primary);
  text-shadow: 0 0 20px rgba(255, 107, 107, 0.8);
}

.dark-mode .tagline {
  color: var(--accent-secondary);
  text-shadow: 0 0 10px rgba(78, 205, 196, 0.5);
}

.dark-mode .signup-section {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
}

.dark-mode .signup-description {
  color: var(--text-secondary);
}

.dark-mode .email-input {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid var(--border-color);
  color: var(--text-primary);
}

.dark-mode .email-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.dark-mode .email-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 20px rgba(255, 107, 107, 0.3);
}

.dark-mode .notify-btn {
  background: linear-gradient(135deg, var(--accent-primary), #ff4757);
  box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.dark-mode .notify-btn:hover {
  box-shadow: 0 10px 30px rgba(255, 107, 107, 0.7);
}

.dark-mode .dark-mode-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-color);
}

.dark-mode .dark-mode-toggle .toggle-icon {
  transform: rotate(180deg);
}

/* Responsive design */
@media (max-width: 768px) {
  .dark-mode-toggle {
    top: 1rem;
    right: 1rem;
    width: 45px;
    height: 45px;
  }
  
  .email-form {
    flex-direction: column;
  }

  .email-input {
    min-width: auto;
  }
}