@import url('https://fonts.googleapis.com/css2?family=Fredoka+One&family=Outfit:wght@300;400;600;700&display=swap');

:root {
  --primary: #70d6ff;
  --secondary: #ff70a6;
  --accent: #ffba08;
  --success: #6fe0ba;
  --bg-color: #f8faff;
  --text-color: #2c3e50;
  --card-bg: #ffffff;
  --border-radius: 24px;
  --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

[lang="ta"] {
  font-family: 'Outfit', 'Latha', 'Tamil', sans-serif;
}

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

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  overflow-x: hidden;
  line-height: 1.6;
}

h1, h2, h3 {
  font-family: 'Fredoka One', cursive;
  letter-spacing: 0.5px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  text-align: center;
  padding: 3rem 0;
  animation: fadeInDown 1s ease-out;
  position: relative;
}

.lang-switcher {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  background: white;
  padding: 5px;
  border-radius: 50px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  border: 2px solid var(--primary);
}

.lang-btn {
  padding: 8px 16px;
  border-radius: 50px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 700;
  font-family: 'Fredoka One', cursive;
  color: var(--text-color);
  transition: var(--transition);
  font-size: 0.9rem;
}

.lang-btn.active {
  background: var(--primary);
  color: white;
}

.lang-btn:hover:not(.active) {
  background: rgba(112, 214, 255, 0.1);
}

.logo {
  max-width: 200px;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.logo:hover {
  transform: scale(1.1) rotate(5deg);
}

.header-content h1 {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
  text-shadow: 2px 2px 0px rgba(0,0,0,0.05);
}

.header-content p {
  font-size: 1.2rem;
  opacity: 0.8;
  font-weight: 500;
}

main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-top: 2rem;
}

.card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  text-align: center;
  box-shadow: 0 15px 35px rgba(0,0,0,0.08);
  transition: var(--transition);
  border: 4px solid transparent;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-15px);
  box-shadow: 0 25px 45px rgba(0,0,0,0.12);
}

.card-riddles { border-color: var(--primary); }
.card-animals { border-color: var(--success); }
.card-tamil { border-color: var(--secondary); }

.card-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  display: block;
}

.card h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.card p {
  font-size: 1.1rem;
  opacity: 0.8;
  margin-bottom: 1.5rem;
}

.btn {
  background: var(--primary);
  color: white;
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  display: inline-block;
  transition: var(--transition);
  font-family: 'Fredoka One', cursive;
  border: none;
  cursor: pointer;
}

.card-riddles .btn { background: var(--primary); }
.card-animals .btn { background: var(--success); }
.card-tamil .btn { background: var(--secondary); }

.card:hover .btn {
  transform: scale(1.1);
}

footer {
  text-align: center;
  padding: 4rem 2rem;
  margin-top: 4rem;
  border-top: 2px dashed rgba(0,0,0,0.05);
}

/* Animations */
@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);
  }
}

.animate-in {
  animation: fadeInUp 0.8s ease-out forwards;
  opacity: 0;
}

.animate-delay-1 { animation-delay: 0.2s; }
.animate-delay-2 { animation-delay: 0.4s; }
.animate-delay-3 { animation-delay: 0.6s; }

/* Responsive Adjustments */
@media (max-width: 768px) {
  .header-content h1 {
    font-size: 2.2rem;
  }
  .container {
    padding: 1.5rem;
  }
}

/* Background Bubbles Decoration */
.bubbles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

.bubble {
  position: absolute;
  border-radius: 50%;
  background: rgba(112, 214, 255, 0.1);
  animation: float 20s infinite linear;
}

@keyframes float {
  from { transform: translateY(110vh) translateX(-50px); }
  to { transform: translateY(-10vh) translateX(50px); }
}