body {
  font-family: "Inter", sans-serif;
  margin: 0;
  background: #f4f7fb;
  color: #333;
}

header {
  background: linear-gradient(135deg, #25d366, #128c7e);
  color: white;
  text-align: center;
  padding: 50px 20px;
}

.header-tools {
  margin-top: 10px;
}

main {
  max-width: 900px;
  margin: auto;
  padding: 20px;
}

.card {
  background: white;
  padding: 30px;
  margin-bottom: 20px;

  border-radius: 12px;

  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

input,
textarea,
select {
  width: 100%;
  padding: 12px;

  margin-top: 10px;
  margin-bottom: 15px;

  border-radius: 8px;

  border: 1px solid #ddd;
}

button {
  background: #25d366;
  border: none;

  padding: 14px;

  border-radius: 8px;

  color: white;
  font-size: 16px;

  cursor: pointer;

  width: 100%;
}

button:hover {
  background: #1ebe5d;
}

.actions {
  display: flex;
  gap: 10px;
}

.actions button {
  flex: 1;
}

.tools-grid {
  display: grid;

  grid-template-columns: 1fr 1fr 1fr;

  gap: 10px;
}

.tools-grid a {
  background: #f1f3f6;

  padding: 15px;

  border-radius: 8px;

  text-align: center;

  text-decoration: none;

  color: #333;
}

#qrcode {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

footer {
  text-align: center;
  padding: 30px;
  color: #777;
}

.dark {
  background: #1e1e1e;
  color: white;
}

.dark .card {
  background: #2a2a2a;
}
.footer-links {
  margin-top: 10px;
}

.footer-links a {
  margin: 0 10px;

  text-decoration: none;

  color: #777;
}

.card.seo{
max-width:900px;
margin:50px auto;
line-height:1.7;
font-size:16px;
}

.card.seo h2{
font-size:28px;
margin-bottom:20px;
}

.card.seo h3{
margin-top:25px;
color:#075e54;
}

.seo-links{
margin-top:20px;
padding-left:20px;
}

.seo-links li{
margin:8px 0;
}

.seo-links a{
color:#25d366;
font-weight:600;
text-decoration:none;
}

.seo-links a:hover{
text-decoration:underline;
}