:root {
  --lum-ink: #1C2B4A;
  --lum-accent: #D4892A;
  --lum-accent-lt: #F0C07A;
  --lum-surface: #F6F4EF;
  --lum-panel: #ECEAE4;
  --lum-white: #FFFFFF;
  --lum-text: #2D3748;
  --lum-muted: #6B7585;
  --lum-border: #D6D3CC;
  --lum-dark-bg: #111928;
  --lum-heading: Georgia, 'Times New Roman', serif;
  --lum-body: system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  --lum-r: 4px;
  --lum-r-lg: 10px;
  --lum-sp-xs: 0.5rem;
  --lum-sp-sm: 1rem;
  --lum-sp-md: 1.75rem;
  --lum-sp-lg: 3rem;
  --lum-sp-xl: 5rem;
  --lum-max: 1100px;
  --lum-prose: 700px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--lum-body);
  font-size: 1rem;
  line-height: 1.72;
  color: var(--lum-text);
  background-color: var(--lum-surface);
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--lum-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--lum-accent);
}

a:focus-visible {
  outline: 2px solid var(--lum-accent);
  outline-offset: 3px;
  border-radius: var(--lum-r);
}

h1, h2, h3, h4 {
  font-family: var(--lum-heading);
  color: var(--lum-ink);
  line-height: 1.22;
}

h1 { font-size: clamp(1.9rem, 4.5vw, 3.1rem); font-weight: 700; }
h2 { font-size: clamp(1.45rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: clamp(1.1rem, 2vw, 1.45rem); font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; }

p { max-width: 66ch; }
p + p { margin-top: var(--lum-sp-sm); }

.lum-wrap {
  max-width: var(--lum-max);
  margin-inline: auto;
  padding-inline: var(--lum-sp-md);
}

.lum-wrap--prose {
  max-width: var(--lum-prose);
  margin-inline: auto;
  padding-inline: var(--lum-sp-md);
}

.lum-eyebrow {
  display: inline-block;
  font-family: var(--lum-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lum-accent);
  margin-bottom: var(--lum-sp-xs);
}

.lum-site-header {
  background-color: var(--lum-ink);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 3px solid var(--lum-accent);
}

.lum-site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--lum-sp-md);
  padding-block: 0.95rem;
  max-width: var(--lum-max);
  margin-inline: auto;
  padding-inline: var(--lum-sp-md);
}

.lum-brand-link {
  font-family: var(--lum-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--lum-white);
  text-decoration: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.lum-brand-link em {
  font-style: normal;
  color: var(--lum-accent);
}

.lum-nav-list {
  display: flex;
  gap: var(--lum-sp-md);
  list-style: none;
}

.lum-nav-list a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.18s, border-color 0.18s;
}

.lum-nav-list a:hover,
.lum-nav-list a[aria-current="page"] {
  color: var(--lum-accent-lt);
  border-bottom-color: var(--lum-accent);
}

.lum-nav-list a:focus-visible {
  outline: 2px solid var(--lum-accent);
  outline-offset: 4px;
  border-radius: var(--lum-r);
}

.lum-hero {
  background-color: var(--lum-ink);
  color: var(--lum-white);
  padding-block: var(--lum-sp-xl);
}

.lum-hero__layout {
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: var(--lum-sp-lg);
  align-items: center;
  max-width: var(--lum-max);
  margin-inline: auto;
  padding-inline: var(--lum-sp-md);
}

.lum-hero__text h1 {
  color: var(--lum-white);
  margin-bottom: var(--lum-sp-md);
}

.lum-hero__text p {
  color: rgba(255,255,255,0.8);
  font-size: 1.12rem;
  margin-bottom: var(--lum-sp-sm);
}

.lum-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: var(--lum-sp-md);
}

.lum-hero__visual {
  border-radius: var(--lum-r-lg);
  overflow: hidden;
}

.lum-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.72rem 1.65rem;
  border-radius: var(--lum-r);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--lum-body);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background-color 0.18s, color 0.18s, border-color 0.18s;
  line-height: 1.3;
}

.lum-btn--gold {
  background-color: var(--lum-accent);
  color: var(--lum-ink);
  border-color: var(--lum-accent);
}

.lum-btn--gold:hover {
  background-color: var(--lum-accent-lt);
  border-color: var(--lum-accent-lt);
  color: var(--lum-ink);
}

.lum-btn--ghost {
  background-color: transparent;
  color: var(--lum-white);
  border-color: rgba(255,255,255,0.45);
}

.lum-btn--ghost:hover {
  border-color: var(--lum-white);
  color: var(--lum-white);
}

.lum-btn--solid {
  background-color: var(--lum-ink);
  color: var(--lum-white);
  border-color: var(--lum-ink);
}

.lum-btn--solid:hover {
  background-color: #263a62;
  border-color: #263a62;
  color: var(--lum-white);
}

.lum-btn:focus-visible {
  outline: 2px solid var(--lum-accent);
  outline-offset: 3px;
}

.lum-section {
  padding-block: var(--lum-sp-xl);
}

.lum-section--white {
  background-color: var(--lum-white);
}

.lum-section--panel {
  background-color: var(--lum-panel);
}

.lum-section--ink {
  background-color: var(--lum-ink);
  color: var(--lum-white);
}

.lum-section__cap {
  margin-bottom: var(--lum-sp-lg);
}

.lum-section__cap h2 {
  margin-bottom: 0.5rem;
}

.lum-section__cap p {
  color: var(--lum-muted);
  font-size: 1.02rem;
}

.lum-section--ink .lum-section__cap h2 {
  color: var(--lum-white);
}

.lum-section--ink .lum-section__cap p {
  color: rgba(255,255,255,0.7);
}

.lum-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--lum-sp-md);
}

.lum-trio-card {
  background-color: var(--lum-white);
  border: 1px solid var(--lum-border);
  border-radius: var(--lum-r-lg);
  padding: var(--lum-sp-md);
}

.lum-trio-card__mark {
  width: 46px;
  height: 46px;
  background-color: var(--lum-ink);
  border-radius: var(--lum-r);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--lum-sp-sm);
}

.lum-trio-card__mark svg {
  width: 22px;
  height: 22px;
  stroke: var(--lum-accent);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.lum-trio-card h3 {
  margin-bottom: 0.4rem;
}

.lum-trio-card p {
  color: var(--lum-muted);
  font-size: 0.93rem;
}

.lum-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--lum-sp-lg);
  align-items: center;
}

.lum-duo--flip .lum-duo__fig {
  order: -1;
}

.lum-duo__copy h2 {
  margin-bottom: var(--lum-sp-sm);
}

.lum-duo__copy p {
  color: var(--lum-muted);
  margin-bottom: var(--lum-sp-sm);
}

.lum-duo__copy .lum-btn {
  margin-top: 0.5rem;
}

.lum-duo__fig {
  border-radius: var(--lum-r-lg);
  overflow: hidden;
  background-color: var(--lum-panel);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lum-banner {
  background-color: var(--lum-accent);
  padding-block: var(--lum-sp-lg);
}

.lum-banner__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--lum-sp-md);
  flex-wrap: wrap;
  max-width: var(--lum-max);
  margin-inline: auto;
  padding-inline: var(--lum-sp-md);
}

.lum-banner__text h2 {
  color: var(--lum-ink);
  margin-bottom: 0.3rem;
}

.lum-banner__text p {
  color: rgba(28,43,74,0.78);
  font-size: 0.97rem;
}

.lum-page-lead {
  background-color: var(--lum-ink);
  padding-block: var(--lum-sp-lg);
}

.lum-page-lead__inner {
  max-width: var(--lum-max);
  margin-inline: auto;
  padding-inline: var(--lum-sp-md);
}

.lum-page-lead h1 {
  color: var(--lum-white);
  margin-bottom: 0.6rem;
}

.lum-page-lead p {
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
  max-width: 62ch;
}

.lum-steps-list {
  display: grid;
  gap: var(--lum-sp-md);
  max-width: var(--lum-prose);
}

.lum-step {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: var(--lum-sp-sm);
  align-items: start;
}

.lum-step__num {
  width: 3rem;
  height: 3rem;
  background-color: var(--lum-ink);
  color: var(--lum-accent);
  font-family: var(--lum-heading);
  font-size: 1.2rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.lum-step__body h3 {
  margin-bottom: 0.3rem;
}

.lum-step__body p {
  color: var(--lum-muted);
  font-size: 0.93rem;
}

.lum-faq-list {
  display: grid;
  gap: 0;
  max-width: var(--lum-prose);
}

.lum-faq-item {
  border-top: 1px solid var(--lum-border);
  padding-block: var(--lum-sp-sm);
}

.lum-faq-item:last-child {
  border-bottom: 1px solid var(--lum-border);
}

.lum-faq-item__q {
  font-family: var(--lum-heading);
  font-size: 1.03rem;
  font-weight: 600;
  color: var(--lum-ink);
  margin-bottom: 0.45rem;
}

.lum-faq-item__a {
  color: var(--lum-muted);
  font-size: 0.93rem;
  max-width: 62ch;
}

.lum-cap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--lum-sp-md);
}

.lum-cap-card {
  border-left: 4px solid var(--lum-accent);
  background-color: var(--lum-white);
  padding: var(--lum-sp-md);
  border-radius: 0 var(--lum-r-lg) var(--lum-r-lg) 0;
}

.lum-cap-card h3 {
  margin-bottom: 0.45rem;
}

.lum-cap-card p {
  color: var(--lum-muted);
  font-size: 0.93rem;
}

.lum-notice {
  background-color: var(--lum-panel);
  border-left: 4px solid var(--lum-ink);
  padding: var(--lum-sp-sm) var(--lum-sp-md);
  border-radius: 0 var(--lum-r) var(--lum-r) 0;
  font-size: 0.91rem;
  color: var(--lum-muted);
  max-width: 68ch;
  margin-top: var(--lum-sp-md);
}

.lum-contact-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--lum-sp-lg);
  align-items: start;
}

.lum-form {
  display: grid;
  gap: var(--lum-sp-sm);
}

.lum-field {
  display: grid;
  gap: 0.38rem;
}

.lum-field label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--lum-ink);
}

.lum-field input,
.lum-field select,
.lum-field textarea {
  width: 100%;
  padding: 0.62rem 0.88rem;
  border: 1.5px solid var(--lum-border);
  border-radius: var(--lum-r);
  font-family: var(--lum-body);
  font-size: 0.93rem;
  color: var(--lum-text);
  background-color: var(--lum-white);
  transition: border-color 0.18s;
  appearance: none;
}

.lum-field input:focus,
.lum-field select:focus,
.lum-field textarea:focus {
  outline: none;
  border-color: var(--lum-ink);
  box-shadow: 0 0 0 3px rgba(28,43,74,0.1);
}

.lum-field textarea {
  resize: vertical;
  min-height: 120px;
}

.lum-req {
  color: var(--lum-accent);
  margin-left: 2px;
}

.lum-form-note {
  font-size: 0.83rem;
  color: var(--lum-muted);
}

.lum-aside-panel {
  background-color: var(--lum-ink);
  color: var(--lum-white);
  border-radius: var(--lum-r-lg);
  padding: var(--lum-sp-md);
}

.lum-aside-panel h3 {
  color: var(--lum-accent);
  margin-bottom: var(--lum-sp-sm);
  font-size: 1.15rem;
}

.lum-contact-row {
  display: flex;
  gap: 0.7rem;
  margin-bottom: var(--lum-sp-sm);
  align-items: flex-start;
}

.lum-contact-row__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  stroke: var(--lum-accent);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.lum-contact-row__info {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.78);
}

.lum-contact-row__info strong {
  display: block;
  color: var(--lum-white);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 0.12rem;
}

.lum-legal-page {
  padding-block: var(--lum-sp-xl);
}

.lum-legal-text {
  max-width: var(--lum-prose);
  margin-inline: auto;
  padding-inline: var(--lum-sp-md);
}

.lum-legal-text h2 {
  font-size: 1.35rem;
  margin-top: var(--lum-sp-lg);
  margin-bottom: var(--lum-sp-xs);
  padding-top: var(--lum-sp-sm);
  border-top: 1px solid var(--lum-border);
}

.lum-legal-text h2:first-of-type {
  border-top: none;
  margin-top: 0;
}

.lum-legal-text h3 {
  font-size: 1.1rem;
  margin-top: var(--lum-sp-md);
  margin-bottom: 0.4rem;
}

.lum-legal-text p {
  color: var(--lum-muted);
  margin-bottom: var(--lum-sp-sm);
  max-width: 100%;
}

.lum-legal-text ul {
  list-style: disc;
  padding-left: 1.5rem;
  color: var(--lum-muted);
  margin-bottom: var(--lum-sp-sm);
}

.lum-legal-text ul li {
  margin-bottom: 0.35rem;
  font-size: 0.95rem;
}

.lum-legal-text a {
  color: var(--lum-ink);
}

.lum-doc-nav {
  margin-top: var(--lum-sp-lg);
  padding-top: var(--lum-sp-sm);
  border-top: 1px solid var(--lum-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--lum-sp-sm);
  font-size: 0.9rem;
}

.lum-glossary-list {
  display: grid;
  gap: var(--lum-sp-md);
  max-width: var(--lum-prose);
}

.lum-glossary-entry {
  padding-bottom: var(--lum-sp-sm);
  border-bottom: 1px solid var(--lum-border);
}

.lum-glossary-entry:last-child {
  border-bottom: none;
}

.lum-glossary-entry dt {
  font-family: var(--lum-heading);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--lum-ink);
  margin-bottom: 0.3rem;
}

.lum-glossary-entry dd {
  color: var(--lum-muted);
  font-size: 0.93rem;
  margin: 0;
}

.lum-inforow-list {
  display: grid;
  gap: var(--lum-sp-sm);
  max-width: var(--lum-prose);
}

.lum-inforow {
  display: flex;
  gap: var(--lum-sp-sm);
  align-items: flex-start;
  padding: var(--lum-sp-sm);
  background-color: var(--lum-white);
  border: 1px solid var(--lum-border);
  border-radius: var(--lum-r-lg);
}

.lum-inforow__icon-wrap {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--lum-r);
  background-color: var(--lum-panel);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lum-inforow__icon-wrap svg {
  width: 20px;
  height: 20px;
  stroke: var(--lum-ink);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.lum-inforow__body h4 {
  margin-bottom: 0.2rem;
}

.lum-inforow__body p {
  color: var(--lum-muted);
  font-size: 0.9rem;
  max-width: 55ch;
}

.lum-form-section-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--lum-ink);
  font-family: var(--lum-heading);
  font-weight: 700;
  line-height: 1.22;
}

.lum-form-intro {
  color: var(--lum-muted);
  margin-bottom: 1.75rem;
  max-width: 56ch;
}

.lum-email-anchor {
  color: rgba(255,255,255,0.78);
  word-break: break-all;
}

.lum-mt-actions {
  margin-top: 1.5rem;
}

.lum-site-footer {
  background-color: var(--lum-dark-bg);
  color: rgba(255,255,255,0.65);
  padding-top: var(--lum-sp-lg);
}

.lum-footer__cols {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--lum-sp-lg);
  max-width: var(--lum-max);
  margin-inline: auto;
  padding-inline: var(--lum-sp-md);
  padding-bottom: var(--lum-sp-lg);
}

.lum-footer__about .lum-brand-link {
  display: block;
  margin-bottom: 0.8rem;
}

.lum-footer__about p {
  font-size: 0.86rem;
  max-width: 30ch;
  color: rgba(255,255,255,0.52);
}

.lum-footer__col-head {
  font-family: var(--lum-body);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: rgba(255,255,255,0.88);
  margin-bottom: 0.85rem;
}

.lum-footer__links {
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.lum-footer__links a {
  color: rgba(255,255,255,0.58);
  font-size: 0.88rem;
  text-decoration: none;
  transition: color 0.18s;
}

.lum-footer__links a:hover {
  color: var(--lum-accent);
}

.lum-footer__base {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-block: var(--lum-sp-md);
  max-width: var(--lum-max);
  margin-inline: auto;
  padding-inline: var(--lum-sp-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--lum-sp-sm);
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.38);
}

.lum-footer__base a {
  color: rgba(255,255,255,0.52);
  text-decoration: none;
}

.lum-footer__base a:hover {
  color: var(--lum-accent);
}

@media (max-width: 900px) {
  .lum-hero__layout {
    grid-template-columns: 1fr;
  }

  .lum-hero__visual {
    display: none;
  }

  .lum-trio {
    grid-template-columns: 1fr 1fr;
  }

  .lum-duo {
    grid-template-columns: 1fr;
  }

  .lum-duo--flip .lum-duo__fig {
    order: 0;
  }

  .lum-contact-layout {
    grid-template-columns: 1fr;
  }

  .lum-cap-grid {
    grid-template-columns: 1fr;
  }

  .lum-footer__cols {
    grid-template-columns: 1fr 1fr;
    gap: var(--lum-sp-md);
  }
}

@media (max-width: 600px) {
  .lum-nav-list {
    gap: var(--lum-sp-sm);
  }

  .lum-nav-list a {
    font-size: 0.78rem;
    letter-spacing: 0.04em;
  }

  .lum-trio {
    grid-template-columns: 1fr;
  }

  .lum-banner__row {
    flex-direction: column;
    align-items: flex-start;
  }

  .lum-footer__cols {
    grid-template-columns: 1fr;
  }

  .lum-footer__base {
    flex-direction: column;
    align-items: flex-start;
  }

  .lum-step {
    grid-template-columns: 2.6rem 1fr;
  }

  .lum-step__num {
    width: 2.6rem;
    height: 2.6rem;
    font-size: 1.05rem;
  }
}

/* Illustrations ajoutées aux pages éditoriales */
.codex-page-visual {
  width: min(100%, 420px);
  margin: 1.5rem 0 1.75rem;
}

.codex-page-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 16px 36px rgba(10, 20, 35, 0.18);
}

@media (max-width: 600px) {
  .codex-page-visual {
    width: 100%;
    margin-top: 1.25rem;
  }
}