:root {
  --bg-color: #1a1a2e;
  --text-color: #e0e0e0;
  --container-bg: rgba(30, 30, 50, 0.9);
  --card-bg: #16213e;
  --primary-color: #0f3460;
  --secondary-color: #e94560;
  --accent-color: #533483;
  --info-bg: rgba(15, 52, 96, 0.2);
}

.light-mode {
  --bg-color: #f0f0f0;
  --text-color: #333333;
  --container-bg: rgba(255, 255, 255, 0.9);
  --card-bg: #ffffff;
  --primary-color: #3498db;
  --secondary-color: #e74c3c;
  --accent-color: #9b59b6;
  --info-bg: rgba(52, 152, 219, 0.1);
}

body {
  font-family: 'Poppins', sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.5s, color 0.5s;
  position: relative;
  overflow-x: hidden;
}

.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-image:
    url('https://assets.pokemon.com/static2/_ui/img/chrome/container_bg.png'),
    radial-gradient(circle at 20% 20%, rgba(15, 52, 96, 0.4) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(233, 69, 96, 0.4) 0%, transparent 40%);
  background-size:
    256px 256px,
    200% 200%,
    200% 200%;
  animation: gradientShift 20s ease infinite, pokeBallRoll 10s linear infinite;
}

@keyframes gradientShift {
  0% {
    background-position: 0 0, 0% 0%, 100% 100%;
  }

  25% {
    background-position: -64px -64px, 100% 0%, 0% 100%;
  }

  50% {
    background-position: -128px -128px, 100% 100%, 0% 0%;
  }

  75% {
    background-position: -192px -192px, 0% 100%, 100% 0%;
  }

  100% {
    background-position: -256px -256px, 0% 0%, 100% 100%;
  }
}

@keyframes pokeBallRoll {
  0% {
    background-position: 0 0, 0% 0%, 100% 100%;
  }

  100% {
    background-position: 256px 256px, 0% 0%, 100% 100%;
  }
}

.container {
  background-color: var(--container-bg);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
  max-width: 90%;
  width: 500px;
  margin: 2rem auto;
  transition: all 0.5s ease;
  animation: floatAnimation 6s ease-in-out infinite;
  border: 2px solid var(--primary-color);
  backdrop-filter: blur(10px);
}

@keyframes floatAnimation {

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

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

.container:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

h1 {
  color: var(--secondary-color);
  font-size: 2.5rem;
  margin: 0;
  text-shadow: 2px 2px var(--primary-color);
  animation: textGlow 2s infinite alternate;
}

@keyframes textGlow {
  from {
    text-shadow: 0 0 5px var(--primary-color);
  }

  to {
    text-shadow: 0 0 15px var(--secondary-color), 0 0 30px var(--accent-color);
  }
}

#theme-toggle {
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 0.3s;
}

#theme-toggle:hover {
  color: var(--secondary-color);
  transform: rotate(180deg) scale(1.2);
}

#search-form {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

#search-input {
  padding: 0.75rem;
  font-size: 1rem;
  width: 70%;
  border: 2px solid var(--primary-color);
  border-radius: 25px 0 0 25px;
  outline: none;
  background-color: var(--card-bg);
  color: var(--text-color);
  transition: all 0.3s ease;
}

#search-input:focus {
  box-shadow: 0 0 10px var(--accent-color);
}

#search-button {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 0 25px 25px 0;
  cursor: pointer;
  transition: all 0.3s ease;
}

#search-button:hover {
  background-color: var(--secondary-color);
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }

  100% {
    transform: scale(1);
  }
}

#pokemon-info {
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
  animation: fadeIn 0.5s ease;
  transition: all 0.3s ease;
  border: 2px solid var(--accent-color);
}

#pokemon-info:hover {
  transform: scale(1.02);
  box-shadow: 0 0 30px rgba(var(--accent-color), 0.3);
}

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

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

.hidden {
  display: none;
}

.pokemon-image {
  display: block;
  margin: 0 auto;
  width: 200px;
  height: 200px;
  object-fit: contain;
  transition: all 0.5s ease;
  filter: drop-shadow(0 0 10px var(--accent-color));
}

.pokemon-image:hover {
  transform: scale(1.1) rotate(5deg);
  filter: drop-shadow(0 0 20px var(--secondary-color));
}

.info-row {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
  transition: all 0.3s ease;
  padding: 0.75rem;
  border-radius: 8px;
  background-color: var(--info-bg);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.info-row:hover {
  transform: translateX(10px) scale(1.05);
  background-color: var(--primary-color);
  color: white;
}

.info-row i {
  margin-right: 0.75rem;
  width: 24px;
  color: var(--secondary-color);
  transition: all 0.3s ease;
}

.info-row:hover i {
  color: var(--accent-color);
  transform: scale(1.2);
}

footer {
  text-align: center;
  padding: 1rem;
  background-color: var(--container-bg);
  color: var(--text-color);
  transition: all 0.3s ease;
  border-top: 2px solid var(--primary-color);
  backdrop-filter: blur(10px);
}

a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
}

a::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: -2px;
  left: 0;
  background-color: var(--accent-color);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

a:hover {
  color: var(--accent-color);
}

a:hover::after {
  transform: scaleX(1);
}

.pikachu-container {
  position: fixed;
  right: 20px;
  bottom: 80px;
  width: 120px;
  height: 120px;
  z-index: 1000;
  pointer-events: none;
  animation: bounce 2s infinite, glow 2s infinite alternate;
}

.pikachu-container img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 5px var(--secondary-color));
}

@keyframes bounce {

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

  50% {
    transform: translateY(-15px);
  }
}

@keyframes glow {
  from {
    filter: drop-shadow(0 0 5px var(--secondary-color));
  }

  to {
    filter: drop-shadow(0 0 15px var(--accent-color));
  }
}

.type {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 15px;
  font-size: 0.9em;
  font-weight: bold;
  text-transform: uppercase;
  margin-right: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.type:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

@media (max-width: 600px) {
  .container {
    padding: 1.5rem;
    margin: 1rem auto;
  }

  h1 {
    font-size: 2rem;
  }

  #search-input {
    width: 60%;
  }

  #pokemon-info {
    padding: 1rem;
  }

  .pokemon-image {
    width: 150px;
    height: 150px;
  }
}

@media (max-width: 400px) {
  .container {
    padding: 1rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  #search-input {
    width: 50%;
  }

  .pokemon-image {
    width: 120px;
    height: 120px;
  }
}

@media (max-width: 768px) {
  .pikachu-container {
    width: 80px;
    height: 80px;
    right: 10px;
    bottom: 60px;
  }
}

@media (max-width: 480px) {
  .pikachu-container {
    width: 60px;
    height: 60px;
    right: 5px;
    bottom: 50px;
  }
}

.pokemon-silhouette {
  position: fixed;
  opacity: 0.1;
  pointer-events: none;
  z-index: -1;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {

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

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