body {
  margin: 0;
  font-family: Inter, sans-serif;
  background: #ffffff;
  color: #0f172a;
}

header {
  padding: 20px 0;
  border-bottom: 1px solid #e2e8f0;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 40px;
}

nav a {
  margin-left: 20px;
  color: #475569;
  text-decoration: none;
  font-weight: 500;
}

.hero {
  text-align: center;
  padding: 80px 20px;
}

.hero h1 {
  font-size: 42px;
  font-weight: 700;
}

.hero p {
  color: #475569;
  max-width: 600px;
  margin: 10px auto 20px;
}

button {
  background: #2563eb;
  color: white;
  padding: 14px 28px;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  background: #1e40af;
}

.dropzone {
  width: 90%;
  max-width: 700px;
  margin: 40px auto;
  padding: 60px;
  border: 2px dashed #cbd5e1;
  border-radius: 20px;
  text-align: center;
  color: #64748b;
  transition: 0.3s;
}

.dropzone:hover {
  border-color: #2563eb;
}

.results {
  width: 90%;
  max-width: 900px;
  margin: 40px auto;
}