body {
  font-family: 'Segoe UI', Arial, sans-serif;
  margin: 0;
  background: #f7f8fa;
  color: #222;
  padding-top: 0;
  text-align: center;
}
header {
  background: #eaf4fb;
  color: #1397d6;
  padding: 2rem 1rem 1rem 1rem;
  text-align: center;
  border-bottom: 2px solid #d7e6ef;
  position: relative;
}
.logo {
  height: 100px;
  vertical-align: middle;
  margin-right: 10px;
  margin-top:20px
}
.lang-switch {
  position: absolute;
  right: 15px;
  top: 10px;
  z-index: 1101;
}

/* liens langue (avec drapeau) */
.lang-switch a {
  background: #eaf4fb;
  color: #1397d6;
  font-weight: bold;
  border: 1px solid #d7e6ef;
  border-radius: 6px;
  padding: 0.2em 0.7em;
  font-size: 1.02em;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.lang-switch a:hover { background: #d7e6ef; }
.lang-switch img { display: inline-block; vertical-align: text-bottom; }

h1 {
  margin-top: 0.2em;
  font-size: 2.2em;
  color: #1397d6;
}
h2 {
  color: #126fa0;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  text-align: center;
}
.banner {
  background-color: #86e6a2;
  color: #18582a;
  font-weight: 500;
  padding: 1em;
  text-align: center;
  border-bottom: 2px solid #6fd187;
  font-size: 1.1em;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  z-index: 1000;
  box-shadow: 0 2px 10px #0002;
  border-radius: 0 0 14px 14px;
}
.banner.error {
  background-color: #ffd7d7;
  color: #7a1f1f;
  border-bottom-color: #f2aaaa;
}
section {
  max-width: 950px;
  margin: auto;
  padding: 0.5rem 1.2rem;
}
.tiles {
  display: flex;
  flex-wrap: wrap;
  gap: 1.3em;
  justify-content: center;
}
.tile {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 16px rgba(19,151,214,0.09), 0 1px 4px rgba(0,0,0,0.06);
  padding: 1.3em 1em;
  min-width: 220px;
  max-width: 265px;
  flex: 1 1 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 1.13em;
  color: #22606c;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: box-shadow 0.2s, transform 0.2s;
  text-align: center;
}
.tile-desc {
  font-size: 0.9em;
  color: #206684;
  font-weight: 400;
  margin-top: 0.5em;
}
.tile:hover {
  box-shadow: 0 4px 28px rgba(19,151,214,0.17), 0 2px 8px rgba(0,0,0,0.11);
  transform: translateY(-4px) scale(1.03);
  color: #1397d6;
}
form {
  background: #fff;
  border-radius: 13px;
  box-shadow: 0 2px 12px rgba(19,151,214,0.05);
  padding: 1.2em 1em 1.5em 1em;
  margin-top: 1.5em;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-direction: column;
  gap: 1.05em;
}
form label {
  font-weight: 500;
  color: #18537c;
}
input, textarea {
  border: 1px solid #b4d6eb;
  border-radius: 6px;
  padding: 0.7em;
  font-size: 1.09em;
  color: #223;
  background: #f8fafb;
}
button[type=submit] {
  background: #1397d6;
  color: #fff;
  border: none;
  padding: 0.7em 0;
  border-radius: 7px;
  font-size: 1.07em;
  font-weight: 500;
  margin-top: 0.4em;
  cursor: pointer;
  transition: background 0.18s;
}
button[type=submit]:hover {
  background: #126fa0;
}
footer {
  text-align: center;
  font-size: 0.99em;
  color: #669;
  padding: 1.5em 0 1em 0;
  background: #f1f4f6;
  margin-top: 2.5em;
  border-top: 1.5px solid #e3e9ee;
}
@media (max-width: 600px) {
  .tiles { flex-direction: column; gap: 1em; }
  .tile { min-width: 0; max-width: 100%; }
  section { padding: 1.3em 0.3em; }
  #success-banner {
    font-size: 1em;
    padding: 0.8em;
  }
  .pricing-table td {
    padding: 0.7em 0.7em;
    font-size: 0.97em;
  }
}
.pricing-table {
  width: 100%;
  max-width: 480px;
  margin: 1.3em auto 2em auto;
  border-collapse: collapse;
  font-size: 1.08em;
  background: #fff;
  box-shadow: 0 1px 6px #1397d61a;
  border-radius: 12px;
  overflow: hidden;
}
.pricing-table td {
  padding: 1em 1.2em;
  border-bottom: 1px solid #e5e9f0;
}
.pricing-table tr:last-child td {
  border-bottom: none;
}
.pricing-table td:first-child {
  font-weight: 500;
  color: #18537c;
  white-space: nowrap;
}
.pricing-table td:last-child {
  text-align: right;
  color: #22606c;
  font-weight: 400;
}
#intro-text {
  font-size: 1.05em;
  color: #2f3f4f;
  margin-top: 0.5em;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

@media (max-width: 800px) {
  .pricing-table {
    max-width: 100%;
    display: block;
    overflow-x: auto;
  }
  .pricing-table td {
    font-size: 0.95em;
    padding: 0.6em 0.5em;
  }
}