* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #111;
  color: #eee;
  font-family: system-ui, Arial, sans-serif;
  min-height: 100vh;
}

.hub {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

.hub-header {
  margin-bottom: 48px;
}

.hub-title {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: #fff;
  letter-spacing: -0.5px;
}

.hub-subtitle {
  margin: 0;
  font-size: 1rem;
  color: #888;
}

.hub-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tool-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #1b1b1b;
  border: 1px solid #2a2a2a;
  border-radius: 12px;
  padding: 24px 28px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, background 0.15s;
}

.tool-card:hover {
  background: #202020;
  border-color: #3a3a3a;
}

.tool-icon {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
  width: 48px;
  text-align: center;
  color: #9bbcff;
}

.tool-info {
  flex: 1;
}

.tool-name {
  margin: 0 0 6px;
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
}

.tool-desc {
  margin: 0;
  font-size: 0.875rem;
  color: #888;
  line-height: 1.5;
}

.tool-enter {
  font-size: 0.875rem;
  color: #9bbcff;
  flex-shrink: 0;
  font-weight: 500;
}

@media (max-width: 600px) {
  .tool-card {
    flex-wrap: wrap;
  }

  .tool-enter {
    display: none;
  }
}