:root {
  --primary: #4CAF50;
  --primary-dark: #3d8b40;
  --secondary: #FF9800;
  --text: #2d3748;
  --light-bg: #f8f9fa;
  --white: #ffffff;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

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

.language-selector {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  overflow: hidden;
}

.background-animation {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(76, 175, 80, 0.1) 0%, rgba(255, 152, 0, 0.1) 100%);
  z-index: -1;
}

.content {
  text-align: center;
  max-width: 800px;
  width: 100%;
}

.logo {
  margin-bottom: 1.5rem;
  animation: fadeIn 0.8s ease-out;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
  animation: slideUp 0.6s ease-out;
}

.subtitle {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  color: var(--text);
  opacity: 0.8;
  animation: slideUp 0.6s ease-out 0.2s forwards;
  opacity: 0;
}

.language-cards {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.language-card {
  background: var(--white);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  width: 160px;
  text-decoration: none;
  color: var(--text);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
  transform: translateY(20px);
  opacity: 0;
  animation: fadeInUp 0.5s ease-out 0.4s forwards;
}

.language-card:nth-child(2) {
  animation-delay: 0.5s;
}

.language-card:nth-child(3) {
  animation-delay: 0.6s;
}

.language-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.flag {
  font-size: 3rem;
  display: block;
  margin-bottom: 0.8rem;
}

.name {
  font-weight: 600;
  font-size: 1.1rem;
}

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

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

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

/* Responsive */
@media (max-width: 600px) {
  h1 {
    font-size: 2rem;
  }
  
  .language-cards {
    flex-direction: column;
    align-items: center;
  }
  
  .language-card {
    width: 100%;
    max-width: 220px;
  }
}