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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #000;
  color: #fff;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  min-height: 90vh;
}

a {
  color: #ffc300;
}

.tree-node a {
  color: inherit;
  text-decoration: none;
}

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

.footer {
  text-align: center;
  color: #e3e3e3ff;
}

.yellow-sunflower {
  color: #ffc300;
}

.github {
  color: #ff4444;
}

.header {
  text-align: center;
  margin-bottom: 3rem;
  margin-top: 2rem;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: 300;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.header p {
  color: #888;
  font-size: 1.1rem;
}

.search-container {
  max-width: 600px;
  margin: 0 auto 3rem;
  position: relative;
}

#packageInput {
  width: 100%;
  padding: 1rem 1.5rem;
  font-size: 1.1rem;
  background: #111;
  border: 1px solid #333;
  border-radius: 50px;
  color: #fff;
  outline: none;
  transition: all 0.3s ease;
}

#packageInput:focus {
  border-color: #666;
  background: #1a1a1a;
}

#packageInput::placeholder {
  color: #666;
}

.loading {
  text-align: center;
  color: #888;
  font-size: 1.1rem;
  margin: 2rem 0;
  display: none;
}

.error {
  text-align: center;
  color: #ff4444;
  margin: 2rem 0;
  padding: 1rem;
  background: rgba(255, 68, 68, 0.1);
  border-radius: 8px;
  display: none;
}

.results {
  display: none;
  margin-top: 2rem;
}

.stats {
  background: #111;
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  border: 1px solid #222;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 300;
  color: #fff;
  display: block;
}

.stat-label {
  font-size: 0.9rem;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tree-container {
  background: #111;
  border-radius: 12px;
  padding: 1.5rem;
  border: 1px solid #222;
  overflow-x: auto;
}

.tree {
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 0.9rem;
  min-width: fit-content;
}

.tree-node {
  margin: 0.25rem 0;
  position: relative;
}

.tree-children {
  margin-left: 1.5rem;
  position: relative;
}

.tree-children::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: #333;
}

.tree-node:not(:last-child)::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 0.7rem;
  width: 1rem;
  height: 1px;
  background: #333;
}

.tree-node::after {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: #333;
}

.tree-node:last-child::after {
  height: 0.7rem;
}

.package-name {
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  transition: all 0.2s ease;
  cursor: pointer;
  position: relative;
  left: -0.5rem;
}

.package-name:hover {
  background: #1a1a1a;
}

.package-name::before {
  content: "📦 ";
  margin-right: 0.3rem;
}

.fade-in {
  animation: fadeIn 0.15s ease-in;
}

.package-summary {
  font-style: italic;
  font-weight: 300;
  text-align: center;
  color: #888;
  margin-bottom: 1.2em;
}

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

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

  .header h1 {
    font-size: 2rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}