body {
  margin: 0;
  background: var(--gray-bg);
  font-family: Arial, sans-serif;
  color: var(--black-text);
}
/* Header */
.header {
  text-align: center;
  padding: 60px 16px 30px;
}

.header h2 {
  font-size: 32px;
  font-weight: bold;
}

.header p {
  color: var(--gray-text);
  margin-top: 10px;
  font-size: 18px;
}

/* Grid section */
.tool-grid-container {
  padding: 20px 16px 60px;
}

.tool-grid {
  max-width: 1100px;
  margin: auto;
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* Tool Cards */
.tool-card {
  background: var(--white-bg);
  padding: 22px;
  border-radius: 14px;
  text-decoration: none;
  text-align: center;
  color: var(--black-text);
  /* border: 1px solid #e6e6e6; */
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  display: block;
  transition: all 0.2s ease;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  border-color: #cdddee;
}

.tool-card h3 {
  font-size: 20px;
  margin-bottom: 6px;
  font-weight: bold;
}

.tool-card p {
  color: var(--gray-text);
  font-size: 15px;
}