/* Base Styles */
:root {
  --primary: #98fb98; /* Pale Green */
  --primary-light: #c1ffc1; /* Mint Green */
  --primary-dark: #90ee90; /* Light Green */
  --secondary: #e0ffe0; /* Mint Cream */
  --accent: #7ccd7c; /* Medium Sea Green */
  --text-light: #2c3e2c; /* Dark Green */
  --text-dark: #1a2c1a; /* Darker Green */
  --bg-light: #f0fff0; /* Honeydew */
  --bg-dark: #ffffff; /* White */
  --border-light: #d8ffd8; /* Light Mint */
  --shadow: 0 4px 6px rgba(124, 205, 124, 0.2);
  --transition: all 0.3s ease;
}

/* Reset and Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family:
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 2rem auto;
  padding: 2rem;
  text-align: center;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

/* Typography */
h1 {
  color: var(--primary-dark);
  margin-bottom: 1rem;
  font-size: 2.5rem;
}

/* Names Grid */
#names-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.name-item {
  background-color: var(--bg-light);
  border: 2px solid var(--border-light);
  border-radius: 1rem;
  padding: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 150px;
}

.name-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(124, 205, 124, 0.3);
  border-color: var(--primary);
}

.name-number {
  font-size: 1.2rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.name-text {
  font-size: 1.1rem;
  color: var(--text-light);
}

/* Popup */
#popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

#popup.visible {
  opacity: 1;
  visibility: visible;
}

#popup-content {
  background-color: var(--bg-light);
  padding: 2rem;
  border-radius: 1rem;
  max-width: 90%;
  width: 500px;
  position: relative;
  box-shadow: var(--shadow);
  border: 2px solid var(--border-light);
}

#close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  color: var(--accent);
  cursor: pointer;
  transition: var(--transition);
}

#close-btn:hover {
  color: var(--primary-dark);
}

#popup-name {
  color: var(--primary-dark);
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

#popup-meaning {
  color: var(--accent);
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

#popup-message {
  color: var(--text-light);
  font-size: 1rem;
  line-height: 1.6;
}

/* Navigation */
.arrow-container {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.arrow-btn {
  background-color: var(--primary);
  color: var(--text-light);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.2rem;
}

.arrow-btn:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
}

#homeButton {
  background-color: var(--primary);
  color: var(--text-light);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-weight: 500;
}

#homeButton:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  h1 {
    font-size: 2rem;
  }

  #names-container {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
  }

  .name-item {
    min-height: 120px;
    padding: 1rem;
  }

  #popup-content {
    padding: 1.5rem;
  }

  #popup-name {
    font-size: 1.5rem;
  }

  #popup-meaning {
    font-size: 1.1rem;
  }
}

/* Footer */
.footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 2px solid var(--border-light);
  text-align: center;
}

.footer p {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.mt-4 {
  margin-top: 1rem;
}