:root {
  --teal: #008b8b;
  --lightteal: #98D6D6;
  --text: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --white: #ffffff;
  --turquoiseButton: #48d1cc;
  --yellowHighlight : #f2b705;
  --orangeHighlight : #f29f05;
  --softpink : #f2b999;
  --deepblue : #024959;
  --lightpink : #ffe4e1;
  --lightyellow : #fffacd;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: #ffffff;
  color: var(--text);
  margin: 0;
}

img {
  max-width: 100%;
  display: block;
}

.topbar {
  border-bottom: 1px solid #e5e7eb;
  background-color: var(--teal);
}

.topbar-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand img {
  width: 36px;
}

.brand-name {
  font-size: 1.2rem;
  font-weight: 600;
  color: #ffffff;
}

.top-nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: #ffffff;
  font-weight: 500;
}

.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.hero-text {
  flex: 1;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--teal);
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.appstore-badge {
  width: 180px;
}

.hero-visual {
  flex: 1;
}

.features {
  background-color: var(--lightteal);
  padding: 4rem 1.5rem;
  text-align: center;
}

.features h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.features-subtitle {
  max-width: 1000px;
  margin: 0 auto 3rem;
  font-size: 1.1rem;
  /*color: var(--text-light);*/
  margin-bottom: 1.5rem;
}

.features-line {
  display: flex;
  flex-direction: column;   
  align-items: center;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .features-line {
    flex-direction: row;
    justify-content: center;
    align-items: flex-start;
    gap: 2rem;
  }

  .feature-item {
    min-width: 120px;
  }

  /* Effet quinconce */
  .feature-item.up {
    margin-top: 0;
  }

  .feature-item.down {
    margin-top: 32px;
  }
}

.science {
  max-width: 800px;
  margin: 4rem auto;
  padding: 0 1.5rem;
  text-align: center;
}

.science h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.science p {
  color: var(--text-light);
  font-size: 1.05rem;
}

.foxy {
  margin: 4rem auto;
  padding: 0 1.5rem;
  display: flex;
  gap: 3rem;
  align-items: center;
  text-align: center;
  background-color: var(--softpink);
}

.foxy h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.foxy-text {
  flex: 2;
}

.foxy-visual {
  flex: 1;
}

a.btn-orange,
button.btn-orange {
  display: block;
  width: 90%;
  max-width: 300px;
  margin: 10px auto;         /* ✅ centre horizontalement */
  background-color: #ff8c00;
  color: #ffffff;
  text-align: center;
  padding: 12px;
  border-radius: 12px;
  text-decoration: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  font-size: 18px;
}

a.btn-orange:hover,
button.btn-orange:hover {
  background-color: #f29f05;
}

.footer {
  border-top: 1px solid #e5e7eb;
  padding: 2rem;
  text-align: center;
  background-color: var(--teal);
}

.footer a {
  margin: 0 1rem;
  text-decoration: none;
  color: var(--white);
  font-weight: 500;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}