:root {
  --bg: #f4f6fb;
  --text: #1e293b;
  --card: #ffffff;
  --border: #d1d5db;
  --gradient: linear-gradient(135deg,#4f46e5,#0ea5e9);
}

body {
  margin: 0;
  font-family: Poppins, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* Navbar */
header {
  background: var(--gradient);
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav {
  max-width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: white;
}

nav .main-menu {
  display: flex;
  list-style: none;
  gap: 25px;
}

.dropdown ul {
  display: none;
  position: absolute;
  background: white;
  color: black;
  padding: 10px;
  border-radius: 8px;
}

.dropdown:hover ul {
  display: block;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 80px 20px;
}

.hero .cta-btn {
  display: inline-block;
  margin-top: 20px;
  padding: 14px 25px;
  background: var(--gradient);
  color: white;
  border-radius: 50px;
  text-decoration: none;
  transition: 0.3s;
}

.tool-grid {
  padding: 40px 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
  gap: 20px;
}

.tool-card {
  background: white;
  border-radius: 12px;
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  transition: 0.3s;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 18px rgba(0,0,0,0.1);
}

/* Footer */
footer {
  background: #0f172a;
  color: #cbd5e1;
  padding: 50px 20px;
}

footer .cols {
  max-width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-between;
}

.copy {
  text-align: center;
  margin-top: 20px;
}