:root {
  --ink: #17231e;
  --muted: #53635b;
  --forest: #0c523c;
  --forest-dark: #073b2d;
  --mint: #dcefe5;
  --mint-soft: #edf7f1;
  --paper: #f5f7f2;
  --surface: #ffffff;
  --coral: #dc624a;
  --coral-soft: #f9e7e1;
  --sun: #edc65a;
  --blue: #226d87;
  --blue-soft: #e3f0f4;
  --line: #d6dfd8;
  --line-strong: #b8c7bd;
  --shadow: 0 18px 45px rgb(18 47 37 / 12%);
  --radius: 6px;
  --container: 1180px;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
}

a {
  color: var(--forest);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--forest-dark);
}

a:focus-visible,
.table-wrap:focus-visible {
  border-radius: 2px;
  outline: 3px solid var(--sun);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 9px 12px;
  border-radius: var(--radius);
  background: var(--sun);
  color: var(--ink);
  font-weight: 800;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgb(255 255 255 / 96%);
}

.site-header-inner,
.landing-hero-inner,
.landing-section-inner,
.policy-content,
.site-footer-inner {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.site-header-inner {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.site-header-actions {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.wordmark {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: baseline;
  gap: 11px;
  color: var(--forest-dark);
  text-decoration: none;
}

.wordmark-brand {
  font-size: 1.12rem;
  font-weight: 850;
  letter-spacing: 0;
}

.wordmark-descriptor {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 22px;
}

.site-nav a {
  color: #34443c;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

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

.language-switcher {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 7px;
  border-left: 1px solid var(--line-strong);
  padding-left: 18px;
  color: var(--line-strong);
  font-size: 0.78rem;
  font-weight: 800;
}

.language-switcher a {
  min-width: 28px;
  color: var(--muted);
  text-align: center;
  text-decoration: none;
}

.language-switcher a[aria-current="page"] {
  color: var(--forest-dark);
  text-decoration: underline;
  text-decoration-color: var(--coral);
  text-decoration-thickness: 3px;
  text-underline-offset: 5px;
}

.site-main {
  min-height: 60vh;
}

.site-main--landing {
  width: 100%;
}

.landing-hero {
  overflow: hidden;
  border-bottom: 1px solid #184f3e;
  background: var(--forest-dark);
  color: #ffffff;
}

.landing-hero-inner {
  position: relative;
  display: grid;
  gap: 24px;
  padding-block: 44px 30px;
}

.landing-hero-inner::before,
.landing-hero-inner::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.landing-hero-inner::before {
  top: 58px;
  right: 2%;
  width: 104px;
  height: 104px;
  border: 24px solid var(--coral);
  border-radius: 50%;
  opacity: 0.92;
}

.landing-hero-inner::after {
  top: 112px;
  right: 13%;
  width: 56px;
  height: 56px;
  border: 14px solid var(--sun);
  transform: rotate(18deg);
}

.landing-hero-copy {
  position: relative;
  z-index: 1;
  max-width: 880px;
}

.landing-hero-copy h1 {
  max-width: 780px;
  margin: 0;
  color: #ffffff;
  font-size: 4.5rem;
  font-weight: 850;
  line-height: 0.98;
  letter-spacing: 0;
}

.landing-hero-copy > p {
  margin: 0;
}

.landing-hero-copy > p:first-of-type {
  margin-top: 14px;
  color: #a8d7c4;
  font-size: 0.94rem;
  font-weight: 800;
  text-transform: uppercase;
}

.landing-hero-copy > p:nth-of-type(2) {
  max-width: 820px;
  margin-top: 18px;
  color: #ffffff;
  font-size: 2rem;
  font-weight: 740;
  line-height: 1.18;
}

.landing-hero-copy > p:nth-of-type(3) {
  max-width: 710px;
  margin-top: 12px;
  color: #d8e9e1;
  font-size: 1.08rem;
}

.landing-hero-copy > p:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.landing-hero-copy > p:last-child a {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid #ffffff;
  border-radius: var(--radius);
  padding: 10px 18px;
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 780;
  text-decoration: none;
}

.landing-hero-copy > p:last-child a:first-child {
  border-color: var(--sun);
  background: var(--sun);
  color: #243129;
}

.landing-hero-copy > p:last-child a:hover {
  border-color: var(--coral);
  background: var(--coral);
  color: #ffffff;
}

.migration-preview {
  position: relative;
  z-index: 1;
  overflow: hidden;
  width: min(100%, 980px);
  border: 1px solid rgb(255 255 255 / 22%);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  color: var(--ink);
}

.preview-toolbar,
.preview-progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.preview-toolbar {
  min-height: 42px;
  padding: 8px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--mint-soft);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 720;
}

.preview-toolbar strong {
  color: var(--forest);
}

.preview-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 38px minmax(0, 1fr) 38px minmax(0, 1fr);
  align-items: stretch;
  padding: 14px 18px;
}

.preview-step {
  display: grid;
  min-height: 78px;
  align-content: center;
  gap: 2px;
  padding: 14px 16px;
  border-left: 4px solid var(--forest);
  background: var(--paper);
}

.preview-step:nth-of-type(2) {
  border-color: var(--blue);
}

.preview-step:nth-of-type(3) {
  border-color: var(--coral);
}

.preview-step-number {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
}

.preview-step strong {
  font-size: 0.96rem;
}

.preview-step small {
  color: var(--muted);
  font-size: 0.75rem;
}

.preview-connector {
  display: grid;
  place-items: center;
  color: var(--forest);
  font-size: 1.2rem;
  font-weight: 800;
}

.preview-progress {
  padding: 0 18px 8px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 720;
}

.preview-progress-track {
  height: 7px;
  margin: 0 18px 14px;
  background: #dbe4de;
}

.preview-progress-track span {
  display: block;
  width: 72%;
  height: 100%;
  background: var(--coral);
}

.landing-section {
  scroll-margin-top: 24px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.landing-section:nth-of-type(even) {
  background: var(--paper);
}

.landing-section-inner {
  display: grid;
  grid-template-columns: minmax(230px, 0.7fr) minmax(0, 1.5fr);
  gap: 64px;
  padding-block: 82px;
}

.landing-section-heading {
  align-self: start;
}

.section-marker {
  display: block;
  margin-bottom: 12px;
  color: var(--coral);
  font-size: 0.75rem;
  font-weight: 850;
}

.landing-section h2 {
  max-width: 330px;
  margin: 0;
  color: var(--forest-dark);
  font-size: 2.3rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.landing-section-content > p:first-child {
  max-width: 740px;
  margin-top: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.landing-section-content p,
.landing-section-content ul,
.landing-section-content ol,
.landing-section-content blockquote {
  margin-block: 0 20px;
}

.landing-section-content ul,
.landing-section-content ol {
  padding: 0;
  list-style: none;
}

.landing-section-content li {
  min-width: 0;
}

.landing-section--fonctionnalites ul,
.landing-section--features ul,
.landing-section--compatibilite ul,
.landing-section--compatibility ul,
.landing-section--questions-frequentes ul,
.landing-section--faq ul {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.landing-section--fonctionnalites li,
.landing-section--features li,
.landing-section--compatibilite li,
.landing-section--compatibility li,
.landing-section--questions-frequentes li,
.landing-section--faq li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--surface);
  box-shadow: 0 8px 24px rgb(18 47 37 / 7%);
}

.landing-section--fonctionnalites li,
.landing-section--features li {
  border-top: 4px solid var(--forest);
}

.landing-section--compatibilite li:nth-child(1),
.landing-section--compatibility li:nth-child(1) {
  border-top: 4px solid var(--forest);
}

.landing-section--compatibilite li:nth-child(2),
.landing-section--compatibility li:nth-child(2) {
  border-top: 4px solid var(--coral);
}

.landing-section--compatibilite li:nth-child(3),
.landing-section--compatibility li:nth-child(3) {
  border-top: 4px solid var(--blue);
}

.landing-section--compatibilite .landing-section-content > p:last-child,
.landing-section--compatibility .landing-section-content > p:last-child {
  padding: 16px 18px;
  border-left: 4px solid var(--sun);
  background: #fff7dd;
  color: #38423d;
}

.landing-section--comment-ca-marche ol,
.landing-section--how-it-works ol {
  display: grid;
  gap: 0;
  counter-reset: migration-step;
  border-top: 1px solid var(--line-strong);
}

.landing-section--comment-ca-marche li,
.landing-section--how-it-works li {
  position: relative;
  min-height: 84px;
  padding: 22px 18px 22px 76px;
  border-bottom: 1px solid var(--line-strong);
  counter-increment: migration-step;
}

.landing-section--comment-ca-marche li::before,
.landing-section--how-it-works li::before {
  position: absolute;
  top: 21px;
  left: 14px;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 50%;
  background: var(--forest);
  color: #ffffff;
  content: counter(migration-step, decimal-leading-zero);
  font-size: 0.72rem;
  font-weight: 850;
}

.landing-section--pourquoi-derova ul,
.landing-section--why-derova ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.landing-section--pourquoi-derova li,
.landing-section--why-derova li {
  min-height: 132px;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--mint-soft);
}

.landing-section--etat-du-produit blockquote,
.landing-section--product-status blockquote {
  margin-top: 30px;
  padding: 20px 22px;
  border-left: 5px solid var(--coral);
  background: var(--coral-soft);
  color: #4a3029;
}

.landing-section--questions-frequentes ul,
.landing-section--faq ul {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.landing-section--questions-frequentes li,
.landing-section--faq li {
  box-shadow: none;
}

.landing-section--telechargement,
.landing-section--availability {
  border-bottom: 0;
  background: var(--sun);
}

.landing-section--telechargement:nth-of-type(even),
.landing-section--availability:nth-of-type(even) {
  background: var(--sun);
}

.landing-section--telechargement .section-marker,
.landing-section--telechargement h2,
.landing-section--availability .section-marker,
.landing-section--availability h2 {
  color: #26332c;
}

.landing-section--telechargement .landing-section-content > p:first-child,
.landing-section--availability .landing-section-content > p:first-child {
  color: #26332c;
  font-size: 1.35rem;
}

.site-main--policy {
  border-top: 8px solid var(--mint);
  background: var(--paper);
}

.policy-content {
  max-width: 860px;
  padding-block: 68px 84px;
}

.policy-content > h1:first-child {
  max-width: 780px;
  margin: 0 0 28px;
  color: var(--forest-dark);
  font-size: 3.3rem;
  line-height: 1.05;
  letter-spacing: 0;
}

.policy-content > h1:first-child + p {
  max-width: 760px;
  margin-bottom: 42px;
  color: var(--muted);
  font-size: 1.08rem;
}

.policy-content h2 {
  margin: 48px 0 14px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  color: var(--forest-dark);
  font-size: 1.55rem;
  line-height: 1.25;
}

.policy-content h3 {
  margin: 30px 0 10px;
  color: var(--forest);
  font-size: 1.12rem;
}

.policy-content p,
.policy-content ul,
.policy-content ol {
  margin-block: 0 18px;
}

.policy-content li + li {
  margin-top: 8px;
}

.policy-content code {
  overflow-wrap: anywhere;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
  background: var(--surface);
  color: #813d28;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.9em;
}

.policy-content blockquote {
  margin: 24px 0;
  padding: 15px 18px;
  border-left: 4px solid var(--coral);
  background: var(--surface);
}

.table-wrap {
  overflow-x: auto;
  margin-block: 26px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 0.88rem;
}

th,
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--mint);
  color: var(--forest-dark);
}

tr:last-child td {
  border-bottom: 0;
}

.source-reference {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.92em;
}

.site-footer {
  border-top: 1px solid #254e40;
  background: #102a21;
  color: #dceae3;
}

.site-footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.4fr);
  gap: 64px;
  padding-block: 52px;
}

.footer-brand {
  display: grid;
  align-content: start;
  gap: 4px;
}

.footer-brand > strong {
  color: #ffffff;
  font-size: 1.1rem;
}

.footer-brand > span {
  color: #a9c8ba;
  font-size: 0.82rem;
  font-weight: 700;
}

.footer-brand p {
  max-width: 420px;
  margin: 18px 0 0;
  color: #b9cec4;
  font-size: 0.84rem;
}

.footer-navigation {
  display: grid;
  grid-template-columns: minmax(140px, 0.7fr) minmax(260px, 1.3fr);
  gap: 36px;
}

.footer-link-group {
  display: grid;
  align-content: start;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 18px;
}

.footer-link-group > strong {
  grid-column: 1 / -1;
  margin-bottom: 6px;
  color: #ffffff;
  font-size: 0.82rem;
}

.footer-link-group a {
  color: #c4d9cf;
  font-size: 0.82rem;
  text-decoration: none;
}

.footer-link-group a:hover {
  color: var(--sun);
}

@media (max-width: 1040px) {
  .site-header-inner {
    gap: 18px;
  }

  .site-header-actions {
    gap: 12px;
  }

  .site-nav {
    gap: 6px 14px;
  }

  .site-nav a {
    font-size: 0.82rem;
  }

  .language-switcher {
    padding-left: 12px;
  }
}

@media (max-width: 760px) {
  .site-header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding-block: 16px;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .site-header-actions {
    width: 100%;
    align-items: flex-start;
    justify-content: space-between;
  }

  .landing-hero-inner::before,
  .landing-hero-inner::after {
    opacity: 0.32;
  }

  .landing-section-inner {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-block: 64px;
  }

  .landing-section h2 {
    max-width: 620px;
  }

  .landing-section--fonctionnalites ul,
  .landing-section--features ul,
  .landing-section--compatibilite ul,
  .landing-section--compatibility ul {
    grid-template-columns: 1fr;
  }

  .site-footer-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 680px) {
  .site-header-inner,
  .landing-hero-inner,
  .landing-section-inner,
  .policy-content,
  .site-footer-inner {
    width: min(calc(100% - 28px), var(--container));
  }

  .wordmark {
    align-items: baseline;
    flex-direction: row;
    gap: 8px;
  }

  .site-nav {
    gap: 8px 15px;
  }

  .site-nav a {
    font-size: 0.84rem;
  }

  .site-header-actions {
    align-items: stretch;
    flex-direction: column-reverse;
    gap: 12px;
  }

  .language-switcher {
    align-self: flex-end;
    border-left: 0;
    padding-left: 0;
  }

  .landing-hero-inner {
    gap: 20px;
    padding-block: 34px 24px;
  }

  .landing-hero-copy h1 {
    font-size: 3rem;
  }

  .landing-hero-copy > p:nth-of-type(2) {
    font-size: 1.4rem;
  }

  .landing-hero-copy > p:nth-of-type(3) {
    font-size: 1rem;
  }

  .landing-hero-copy > p:last-child {
    align-items: stretch;
    flex-direction: column;
  }

  .landing-hero-copy > p:last-child a {
    width: 100%;
  }

  .preview-flow {
    grid-template-columns: minmax(0, 1fr) 16px minmax(0, 1fr) 16px minmax(0, 1fr);
    gap: 0;
    padding: 10px;
  }

  .preview-connector {
    min-height: 0;
    font-size: 0.82rem;
  }

  .preview-step {
    min-height: 90px;
    padding: 10px 7px;
    border-left-width: 3px;
  }

  .preview-step strong {
    font-size: 0.8rem;
  }

  .preview-step small {
    font-size: 0.65rem;
    line-height: 1.3;
  }

  .preview-step-number {
    font-size: 0.58rem;
  }

  .landing-section-inner {
    padding-block: 52px;
  }

  .landing-section h2 {
    font-size: 1.9rem;
  }

  .landing-section--pourquoi-derova ul,
  .landing-section--why-derova ul,
  .landing-section--questions-frequentes ul,
  .landing-section--faq ul {
    grid-template-columns: 1fr;
  }

  .policy-content {
    padding-block: 48px 62px;
  }

  .policy-content > h1:first-child {
    overflow-wrap: anywhere;
    font-size: 2.25rem;
  }

  .footer-navigation,
  .footer-link-group {
    grid-template-columns: 1fr;
  }

  .footer-link-group > strong {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}