* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #1e1e2f;
  color: #eee;
  min-height: 100vh;
  padding-top: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 60px;
}

h1 {
  margin-bottom: 30px;
  font-size: 28px;
  letter-spacing: 0.5px;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: #16161f;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  z-index: 1000;
}

.nav-logo {
  font-size: 20px;
  font-weight: 700;
  color: #6366f1;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 30px;
}

.nav-links a {
  color: #eee;
  text-decoration: none;
  font-size: 15px;
  transition: 0.2s;
}

.nav-links a:hover {
  color: #6366f1;
}

.products {
  width: 100%;
  max-width: 700px;
  margin: 40px auto 80px auto;
  text-align: center;
}

.products h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

.product-grid {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.product-card {
  background: #2a2a3a;
  border-radius: 12px;
  padding: 25px;
  width: 220px;
  text-decoration: none;
  color: #eee;
  transition: 0.2s;
  border: 1px solid #3a3a4a;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: #6366f1;
}

.product-card h3 {
  color: #6366f1;
  margin-bottom: 8px;
}

.product-card p {
  font-size: 14px;
  color: #aaa;
}

.disabled-card {
  opacity: 0.5;
  cursor: not-allowed;
}

.disabled-card:hover {
  transform: none;
  border-color: #3a3a4a;
}

.cleaner-section {
  width: 100%;
  max-width: 600px;
  margin: 40px auto;
  text-align: center;
}

#dropZone {
  border: 3px dashed #999;
  border-radius: 10px;
  padding: 60px;
  text-align: center;
  color: #666;
  transition: 0.2s;
}

#dropZone.dragover {
  border-color: #4caf50;
  background: #f0fff0;
  color: #4caf50;
}

#metadataInfo {
  margin-top: 20px;
  text-align: left;
}

#cleanBtn {
  margin-top: 20px;
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  background: #6366f1;
  color: white;
  cursor: pointer;
  transition: 0.2s;
}

#cleanBtn:hover:not(:disabled) {
  background: #4f46e5;
  transform: translateY(-1px);
}

#cleanBtn:disabled {
  background: #3a3a4a;
  color: #777;
  cursor: not-allowed;
  opacity: 0.6;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
}

.contact-form input,
.contact-form textarea {
  background: #2a2a3a;
  border: 1px solid #3a3a4a;
  border-radius: 8px;
  padding: 12px 14px;
  color: #eee;
  font-size: 15px;
  font-family: inherit;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #6366f1;
}

.contact-form button {
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  background: #6366f1;
  color: white;
  cursor: pointer;
  transition: 0.2s;
}

.contact-form button:hover {
  background: #4f46e5;
  transform: translateY(-1px);
}

#formStatus {
  margin-top: 16px;
  font-size: 14px;
}