@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap");

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

:root {
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --secondary-color: #8b5cf6;
  --success-color: #10b981;
  --danger-color: #ef4444;
  --bg-gradient-start: #0f172a;
  --bg-gradient-end: #1e293b;
  --card-bg: rgba(30, 41, 59, 0.8);
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --border-color: rgba(99, 102, 241, 0.3);
  --shadow-color: rgba(99, 102, 241, 0.2);
}

body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(
    135deg,
    var(--bg-gradient-start) 0%,
    var(--bg-gradient-end) 100%
  );
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-primary);
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 1400px;
  padding: 0 20px;
}

header {
  text-align: center;
  margin-bottom: 40px;
  animation: fadeInDown 0.8s ease-out;
}

header h1 {
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px var(--shadow-color);
  transition: all 0.3s ease;
}

header h1:hover {
  transform: scale(1.05);
}

.theme-selector {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 25px;
  animation: fadeIn 0.8s ease-out 0.2s both;
}

.theme-btn {
  padding: 12px 30px;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.6);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: "Poppins", sans-serif;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.theme-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(99, 102, 241, 0.3),
    transparent
  );
  transition: left 0.5s ease;
}

.theme-btn:hover::before {
  left: 100%;
}

.theme-btn:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--shadow-color);
}

.theme-btn.active {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 20px var(--shadow-color);
}

.theme-btn.active:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--shadow-color);
}

.game-wrapper {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  justify-content: center;
}

.game-container {
  flex: 1;
  max-width: 700px;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: 30px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--border-color);
  animation: fadeInUp 0.8s ease-out;
}

.incorrect-letters-panel {
  min-width: 180px;
  max-width: 220px;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--border-color);
  animation: fadeInRight 0.8s ease-out;
}

.incorrect-letters-panel h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  text-align: center;
  background: linear-gradient(
    135deg,
    var(--danger-color),
    #f97316
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#incorrect-letters-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  min-height: 50px;
}

.no-letters {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-align: center;
  font-style: italic;
  opacity: 0.6;
}

.incorrect-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(
    135deg,
    rgba(239, 68, 68, 0.2),
    rgba(249, 115, 22, 0.2)
  );
  border: 2px solid var(--danger-color);
  border-radius: 10px;
  color: var(--danger-color);
  font-size: 1.2rem;
  font-weight: 700;
  animation: popIn 0.3s ease-out both;
  transition: all 0.3s ease;
}

.incorrect-letter:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
}

.hints-panel {
  min-width: 180px;
  max-width: 220px;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--border-color);
  animation: fadeInLeft 0.8s ease-out 0.1s both;
}

.hints-panel h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  text-align: center;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hint-btn {
  width: 100%;
  padding: 12px 20px;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: white;
  cursor: pointer;
  font-family: "Poppins", sans-serif;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px var(--shadow-color);
  position: relative;
  overflow: hidden;
}

.hint-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s ease;
}

.hint-btn:hover::before {
  left: 100%;
}

.hint-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--shadow-color);
}

.hint-btn:active {
  transform: translateY(0);
}

.hint-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.hint-text {
  margin-top: 15px;
  padding: 15px;
  background: rgba(99, 102, 241, 0.1);
  border: 2px solid var(--primary-color);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.5;
  text-align: center;
  animation: slideIn 0.5s ease-out;
}


.hangman-image {
  text-align: center;
  margin-bottom: 30px;
}

.hangman-image img {
  max-width: 300px;
  height: auto;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.5));
  transition: transform 0.3s ease;
}

.hangman-image img:hover {
  transform: scale(1.05);
}

.word-display {
  margin: 25px 0;
  text-align: center;
  overflow-x: auto;
  overflow-y: hidden;
}

#word-container {
  display: inline-flex;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 8px;
  font-size: 2.2rem;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--text-primary);
  min-height: 60px;
  white-space: nowrap;
}

.letter-box {
  display: inline-block;
  min-width: 35px;
  padding: 8px 6px;
  border-bottom: 4px solid var(--primary-color);
  text-align: center;
  animation: fadeIn 0.5s ease-out;
  flex-shrink: 0;
}

.input-section {
  display: flex;
  gap: 15px;
  justify-content: center;
  margin: 30px 0;
}

#letter-input {
  width: 80px;
  height: 60px;
  font-size: 2rem;
  text-align: center;
  text-transform: uppercase;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.6);
  color: var(--text-primary);
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  transition: all 0.3s ease;
  outline: none;
}

#letter-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 20px var(--shadow-color);
  transform: scale(1.05);
}

#check-btn,
#restart-btn {
  display: block;
  padding: 15px 35px;
  font-size: 1.1rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: white;
  cursor: pointer;
  font-family: "Poppins", sans-serif;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px var(--shadow-color);
}

#check-btn:hover,
#restart-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--shadow-color);
}

#check-btn:active,
#restart-btn:active {
  transform: translateY(0);
}

#check-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.attempts-info {
  text-align: center;
  margin: 20px 0;
  font-size: 1.2rem;
  color: var(--text-secondary);
}

#attempts-left {
  font-weight: 700;
  color: var(--primary-color);
  font-size: 1.4rem;
}

.result-message {
  text-align: center;
  margin: 25px 0;
  padding: 20px;
  border-radius: 12px;
  font-size: 1.3rem;
  font-weight: 600;
  animation: slideIn 0.5s ease-out;
}

.result-message.win {
  background: rgba(16, 185, 129, 0.2);
  border: 2px solid var(--success-color);
  color: var(--success-color);
}

.result-message.lose {
  background: rgba(239, 68, 68, 0.2);
  border: 2px solid var(--danger-color);
  color: var(--danger-color);
}

.hidden {
  display: none !important;
}

#restart-btn {
  margin: 20px auto 0;
}

/* Animaciones */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes popIn {
  0% {
    opacity: 0;
    transform: scale(0);
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* Responsive */
@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }

  .theme-selector {
    gap: 10px;
    margin-top: 20px;
  }

  .theme-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  .game-wrapper {
    flex-direction: column;
    gap: 20px;
  }

  .hints-panel {
    max-width: 100%;
    width: 100%;
    order: 1;
  }

  .game-container {
    padding: 25px;
    order: 2;
  }

  .incorrect-letters-panel {
    max-width: 100%;
    width: 100%;
    order: 3;
  }


  #word-container {
    font-size: 1.8rem;
    letter-spacing: 4px;
    gap: 8px;
  }

  .letter-box {
    min-width: 30px;
    padding: 8px;
  }

  .input-section {
    flex-direction: column;
    align-items: center;
  }

  #letter-input {
    width: 100%;
    max-width: 200px;
  }

  #check-btn {
    width: 100%;
    max-width: 300px;
  }
}