/* Feuille de styles pour nettoyage-methanisation.fr */

:root {
  --main-color: #00795d;
  --hover-color: #005f47;
  --bg-color: #f9f9f9;
  --text-color: #333;
  --title-color: #004b3f;
  --font-family: 'Segoe UI', Roboto, sans-serif;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-family);
  line-height: 1.7;
  font-size: 22px;
}

header, section, footer {
  padding: 60px 20px;
  max-width: 1100px;
  margin: auto;
}

h1, h2 {
  color: var(--title-color);
  margin-bottom: 20px;
  text-align: center;
}

ul {
  padding-left: 20px;
  margin-bottom: 20px;
}

ul a {
  color: var(--main-color);
  text-decoration: none;
}

ul a:hover {
  text-decoration: underline;
}


button {
  background: var(--main-color);
  color: white;
  padding: 14px 32px;
  border: none;
  border-radius: 5px;
  font-size: 22px;
  cursor: pointer;
  margin: 30px auto 0;
  display: block;
  transition: background 0.3s ease;
}

button:hover {
  background: var(--hover-color);
}

form input, form textarea {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 16px;
  box-sizing: border-box;
}

form label {
  font-weight: bold;
}

footer {
  text-align: center;
  font-size: 14px;
  color: #777;
  border-top: 1px solid #ddd;
}

/* Sticky Menu */
nav {
  position: sticky;
  top: 0;
  background: white;
  border-bottom: 1px solid #ddd;
  z-index: 1000;
  padding: 40px 0;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
}

nav img.logo {
  height: 60px;
  width: auto;
}

nav a {
  margin: 0 20px;
  text-decoration: none;
  color: var(--main-color);
  font-weight: 600; 
  font-size: 24px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

nav a:hover {
  color: var(--hover-color);
}

/* Blocs Avantages avec icônes */
#avantages .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

#avantages .grid div {
  background: white;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  text-align: left;
}

#avantages .icon-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

#avantages .icon-title .icon {
  font-size: 28px;
  color: var(--main-color);
}

#avantages .icon-title h3 {
  font-size: 22px;
  margin: 0;
}

#avantages .grid div p {
  font-size: 20px;
  margin-top: 10px;
}

@media (max-width: 768px) {
  header, section, footer {
    padding: 40px 15px;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 22px;
  }

  button {
    width: 100%;
    padding: 16px;
  }

  nav a {
    display: inline-block;
    margin: 10px;
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

  nav a {
    font-size: 14px;
  }
}