:root {
  --bleu: #009fe3;
  --bleu-fonce: #006fae;
  --rose: #e6007e;
  --vert: #95c11f;
  --fond: #f7f9fc;
  --texte: #202020;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Myriad Pro", Arial, sans-serif;
  background: linear-gradient(135deg, #f9fcff, #ffffff);
  color: var(--texte);
}

/* Bandeau du haut */

.header {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 25px;
  background: white;
  border-bottom: 5px solid var(--bleu);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.logo-area {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  height: 62px;
  max-width: 210px;
  object-fit: contain;
}

.title-area {
  border-left: 4px solid var(--rose);
  padding-left: 22px;
}

.title-area h1 {
  margin: 0;
  font-size: 32px;
  color: #222;
  letter-spacing: 1px;
}

.title-area p {
  margin: 5px 0 0;
  font-size: 15px;
  color: #555;
}

/* Page principale */

.main {
  min-height: calc(100vh - 155px);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 45px 25px;
}

.card {
  width: 980px;
  max-width: 100%;
  background: white;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid #e1e6ed;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.10);
}

/* Onglets */

.tabs {
  display: flex;
  background: white;
  border-bottom: 1px solid #d8dde5;
}

.tab {
  flex: 1;
  padding: 17px 10px;
  border: none;
  background: white;
  color: var(--bleu-fonce);
  font-size: 16px;
  cursor: pointer;
  transition: 0.2s;
}

.tab:hover {
  background: #eef9ff;
}

.tab.active {
  color: white;
  font-weight: bold;
  background: #005baa;
}

/* Contenu */

.content {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 35px;
  padding: 35px;
}

.form-area {
  min-height: 310px;
}

.tab-content {
  display: none;
}

.active-content {
  display: block;
}

label {
  display: block;
  margin: 14px 0 7px;
  font-weight: 600;
  color: #222;
}

input,
textarea,
select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #ccd3dc;
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  background: white;
}

textarea {
  min-height: 180px;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--bleu);
  box-shadow: 0 0 0 3px rgba(0, 159, 227, 0.15);
}

/* Boutons */

.buttons {
  margin-top: 24px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-generate,
.btn-download {
  padding: 12px 22px;
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 15px;
  cursor: pointer;
  transition: 0.2s;
}

.btn-generate {
  background: var(--bleu);
}

.btn-generate:hover {
  background: var(--bleu-fonce);
}

.btn-download {
  background: var(--vert);
}

.btn-download:hover {
  filter: brightness(0.92);
}

/* Zone QR Code */

.qr-area {
  border-left: 5px solid var(--vert);
  background: #fbfcfd;
  border-radius: 14px;
  padding: 22px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.qr-area h2 {
  margin: 0 0 18px;
  color: var(--rose);
  font-size: 21px;
}

#qrcode {
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  border-radius: 12px;
  padding: 15px;
  border: 1px solid #e1e5ea;
}

.qr-area p {
  margin-top: 15px;
  color: #666;
  font-size: 13px;
}

/* Footer */

.footer {
  min-height: 65px;
  padding: 15px 35px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: white;
  border-top: 5px solid var(--rose);
  font-size: 13px;
  color: #555;
}

/* Responsive */

@media screen and (max-width: 850px) {
  .content {
    grid-template-columns: 1fr;
  }

  .tabs {
    flex-direction: column;
  }

  .header {
    height: auto;
    padding: 18px;
    flex-direction: column;
    text-align: center;
  }

  .title-area {
    border-left: none;
    border-top: 4px solid var(--rose);
    padding-left: 0;
    padding-top: 12px;
  }

  .footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}