* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, Arial, sans-serif;
  color: #222;
  background: #f7f7f7;
}

a { 
  color: inherit; 
  text-decoration: none; 
}

.header {
  position: sticky; 
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: #fff;
  border-bottom: 1px solid #e5e5e5;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}

.logo a { 
  font-weight: 800; 
}

.nav { 
  display: flex; 
  gap: 12px; 
  flex-wrap: wrap; 
}

.nav a { 
  padding: 6px 8px; 
  border-radius: 8px; 
}

.nav a:hover { 
  background: #f0f0f0; 
}

.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 8px;
  background: #0077ff;
  color: #fff;
  font-weight: 700;
  border: none;
  cursor: pointer;
}

.btn.outline {
  background: transparent;
  color: #0077ff;
  border: 2px solid #0077ff;
}

.hero {
  text-align: center;
  padding: 40px 16px;
  background: #e9f2ff;
}

.hero h2 { 
  margin-top: 0; 
}

.features, 
.newsletter {
  max-width: 1000px;
  margin: 24px auto;
  padding: 0 16px;
}

.features h3, 
.newsletter h3 { 
  margin: 12px 0; 
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.card {
  background: #fff;
  border: 1px solid #e5e5e5;
  border-radius: 10px;
  padding: 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}

.card h4 {
  margin-top: 0;
}

.newsletter form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.newsletter input {
  flex: 1;
  min-width: 220px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 8px;
}

.footer {
  text-align: center;
  padding: 16px;
  color: #666;
  background: #fff;
  border-top: 1px solid #e5e5e5;
}

@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .grid { grid-template-columns: 1fr; }
}

.inscription-container {
  max-width: 700px;
  margin: 24px auto 32px;
  padding: 0 16px;
}

.form-abo {
  background: #fff;
  border: 1px solid #e5e5e5;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-abo h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 14px;
  font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid #ccc;
  font: inherit;
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
}

.form-group textarea {
  resize: vertical;
  min-height: 70px;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: #0077ff;
  box-shadow: 0 0 0 2px rgba(0,119,255,0.15);
}

.form-abo .btn {
  margin-top: 8px;
  align-self: flex-start;
}

.form-group select {
  background-color: #fff;
}