/* ==========================================================================
   ELMART — Style principal
   Toute règle ici découle d'une partie précise du Design System.
   Voir les commentaires de référence à chaque section.
   ========================================================================== */

/* --- Reset minimal --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-ivoire);
  color: var(--color-noyer);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- Typographie — Partie 2 §2 --- */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--color-noyer);
  margin: 0;
}
h1 { font-size: var(--text-h1); line-height: 1.15; letter-spacing: -0.01em; }
h2 { font-size: var(--text-h2); line-height: 1.25; }
h3, .eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-h3);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-taupe-fonce);
}
p { margin: 0 0 var(--space-3); max-width: var(--max-text-width); }
p:last-child { margin-bottom: 0; }

/* Signature de marque — Addendum V1.1 §4 : Manrope, majuscules, points médians, bronze mat */
.signature {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-bronze-mat);
}

/* --- Layout --- */
.wrap {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 var(--space-5);
}
.section { padding: var(--space-10) 0; }
.section--tight { padding: var(--space-8) 0; }

/* Grille repère / contenu 30 / 70 — Partie 7 §6 */
.split {
  display: grid;
  grid-template-columns: var(--col-repere) var(--col-contenu);
  gap: var(--space-6);
}
.split--ruled { position: relative; padding-left: var(--space-6); }
.split--ruled::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 1px;
  background: var(--color-taupe);
  opacity: 0.3;
}
@media (max-width: 780px) {
  .split { grid-template-columns: 1fr; gap: var(--space-4); }
  .split--ruled { padding-left: var(--space-4); }
}

/* Trait fin de séparation — Partie 7 §2 */
.rule {
  border: 0;
  border-top: 1px solid var(--color-taupe);
  opacity: 0.5;
  margin: var(--space-7) 0;
}

/* Séparateur numéroté — Partie 7 §3 : — 01 — */
.divider-numbered {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-taupe-fonce);
  font-family: var(--font-body);
  font-size: var(--text-caption);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-5);
}
.divider-numbered::before,
.divider-numbered::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-taupe);
  opacity: 0.4;
}

/* --- Boutons — Partie 3 §1 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius);
  text-decoration: none;
  transition: background var(--duration-block) var(--ease-signature),
              color var(--duration-block) var(--ease-signature),
              border-color var(--duration-block) var(--ease-signature),
              gap var(--duration-block) var(--ease-signature);
  cursor: pointer;
}
.btn__arrow {
  display: inline-block;
  transition: transform var(--duration-block) var(--ease-signature);
}
.btn:hover .btn__arrow { transform: translateX(4px); }

.btn--primary {
  background: var(--color-noyer);
  color: var(--color-ivoire);
  border: 1px solid var(--color-noyer);
}
.btn--primary:hover { background: var(--color-noyer-profond); border-color: var(--color-noyer-profond); gap: var(--space-3); }

.btn--tertiary {
  background: none;
  border: none;
  padding: 0;
  color: var(--color-noyer);
  font-weight: 700;
  border-radius: 0;
}
.btn--tertiary:hover .btn__arrow { transform: translateX(4px); }

/* --- Accessibilité : lien d'évitement --- */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-noyer);
  color: var(--color-ivoire);
  padding: var(--space-2) var(--space-3);
  z-index: 100;
  border-radius: var(--radius);
}
.skip-link:focus {
  left: var(--space-3);
  top: var(--space-3);
}

/* Focus clavier visible partout — cf. skill frontend-design */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-terracotta);
  outline-offset: 2px;
}

/* --- En-tête / navigation — Partie 6 §2 --- */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(243, 236, 225, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(166, 151, 131, 0.3);
  transition: padding var(--duration-block) var(--ease-signature);
}
.header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  transition: padding var(--duration-block) var(--ease-signature);
}
.header--scrolled .header__inner { padding: var(--space-2) 0; }
.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  transition: transform var(--duration-block) var(--ease-signature);
}
.logo img {
  display: block;
  height: 34px;
  width: auto;
  transition: height var(--duration-block) var(--ease-signature);
}
.header--scrolled .logo img { height: 26px; }
.footer .logo img { height: 30px; }
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}
.nav__list { display: flex; gap: var(--space-4); }
.nav__link {
  position: relative;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--color-taupe-fonce);
  padding-bottom: 4px;
  transition: color var(--duration-micro) var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-block) var(--ease-signature);
}
.nav__link:hover { color: var(--color-noyer); }
.nav__link:hover::after { transform: scaleX(1); transform-origin: left; }
/* Item actif : trait terracotta — Partie 3 §4 */
.nav__link[aria-current="page"] { color: var(--color-noyer); }
.nav__link[aria-current="page"]::after {
  background: var(--color-terracotta);
  transform: scaleX(1);
}
.nav__toggle { display: none; }

@media (max-width: 860px) {
  .nav__list { display: none; }
  .nav__list--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-ivoire);
    border-bottom: 1px solid rgba(166, 151, 131, 0.3);
    padding: var(--space-4) var(--space-5);
    gap: var(--space-3);
  }
  .nav__toggle {
    display: inline-block;
    background: none;
    border: 1px solid var(--color-taupe);
    border-radius: var(--radius);
    padding: var(--space-2) var(--space-3);
    font-family: var(--font-body);
    font-size: 0.85rem;
  }
}
@media (min-width: 861px) {
  .nav__toggle { display: none; }
}

/* --- Hero — Partie 3 §6 --- */
.hero {
  position: relative;
  padding: var(--space-10) 0 var(--space-9);
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-6);
}
.hero__index {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero__index::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 0;
  width: 1px;
  background: var(--color-taupe);
  opacity: 0.35;
}
.hero__index span {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-body);
  font-size: var(--text-caption);
  letter-spacing: var(--tracking-wider);
  color: var(--color-taupe-fonce);
  text-transform: uppercase;
  padding-top: var(--space-4);
}
.hero__content { max-width: 780px; }
.hero__index {
  opacity: 0;
  animation: hero-rise var(--duration-page) var(--ease-signature) forwards;
  animation-delay: 0ms;
}
.hero h1 {
  max-width: 15ch;
  margin-bottom: var(--space-6);
  opacity: 0;
  animation: hero-rise var(--duration-page) var(--ease-signature) forwards;
  animation-delay: 120ms;
}
.hero__lede {
  font-size: 1.15rem;
  color: var(--color-taupe-fonce);
  max-width: 46ch;
  margin-bottom: var(--space-6);
  opacity: 0;
  animation: hero-rise var(--duration-page) var(--ease-signature) forwards;
  animation-delay: 260ms;
}
.hero__cta {
  opacity: 0;
  animation: hero-rise var(--duration-page) var(--ease-signature) forwards;
  animation-delay: 380ms;
}
@keyframes hero-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .hero h1, .hero__lede, .hero__index, .hero__cta {
    opacity: 1;
    animation: none;
    transform: none;
  }
}
@media (max-width: 700px) {
  .hero { grid-template-columns: 1fr; }
  .hero__index { display: none; }
}

/* --- Cards des piliers — Partie 3 §2 --- */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 860px) {
  .pillars { grid-template-columns: 1fr; }
  .pillars .card + .card { border-left: none; padding-left: 0; }
}
.card {
  background: transparent;
  padding: var(--space-6) var(--space-5) var(--space-5) 0;
  border-top: 1px solid rgba(64, 49, 42, 0.18);
  border-radius: 0;
  transition: border-color var(--duration-block) var(--ease-signature);
}
.pillars .card + .card { border-left: 1px solid rgba(64, 49, 42, 0.1); padding-left: var(--space-5); }
.card:hover { border-top-color: var(--color-bronze-mat); }
.card__num {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0;
  color: var(--color-taupe);
  opacity: 0.55;
  margin-bottom: var(--space-4);
  display: block;
  transition: opacity var(--duration-block) var(--ease-signature), color var(--duration-block) var(--ease-signature);
}
.card:hover .card__num { opacity: 1; color: var(--color-bronze-mat); }
.card h3.card__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-noyer);
  margin-bottom: var(--space-3);
  position: relative;
  display: inline-block;
}
.card h3.card__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  height: 1px;
  width: 100%;
  background: var(--color-noyer);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-block) var(--ease-signature);
}
.card:hover h3.card__title::after { transform: scaleX(1); }
.card p { font-size: 0.95rem; color: var(--color-taupe-fonce); margin-bottom: var(--space-4); }
.card__skills {
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--color-taupe);
  padding-top: var(--space-3);
  border-top: none;
}

/* --- Bloc principes (méthode, teaser) --- */
.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
@media (max-width: 860px) {
  .principles { grid-template-columns: 1fr; }
}
.principle__mark {
  width: 28px;
  height: 1px;
  background: var(--color-sauge);
  margin-bottom: var(--space-3);
}
.principle h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: var(--space-2);
}
.principle p { font-size: 0.92rem; color: var(--color-taupe-fonce); }

/* --- Section ancrage / texture --- */
.texture-band {
  background: var(--color-noyer);
  color: var(--color-ivoire);
  padding: var(--space-8) 0;
}
.texture-band .eyebrow { color: var(--color-sauge); }
.texture-band h2 { color: var(--color-ivoire); margin-bottom: var(--space-4); }
.texture-band p { color: rgba(243, 236, 225, 0.8); }

/* Motif géométrique discret, jamais figuratif — remplace l'image tant que le portfolio n'existe pas */
.motif-lines {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-7);
  position: relative;
  overflow: hidden;
  height: 140px;
}
.motif-lines span {
  flex: 1;
  height: 100%;
  border-top: 1px solid rgba(243, 236, 225, 0.25);
  position: relative;
}
.motif-lines span::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(243, 236, 225, 0.05);
}
.motif-lines span:nth-child(2)::after { background: rgba(243, 236, 225, 0.09); }
.motif-lines span:nth-child(4)::after { background: rgba(243, 236, 225, 0.03); }

/* Geste signature unique : un rai de lumière traverse lentement la composition */
.light-sweep {
  position: absolute;
  top: -20%;
  bottom: -20%;
  width: 14%;
  background: rgba(243, 236, 225, 0.06);
  filter: blur(28px);
  transform: translateX(-40%);
  pointer-events: none;
}
.light-sweep.is-active {
  transition: transform 3.2s var(--ease-signature);
  transform: translateX(680%);
}
@media (prefers-reduced-motion: reduce) {
  .light-sweep { display: none; }
}

/* --- CTA de clôture --- */
.closing {
  text-align: left;
  padding: var(--space-9) 0 var(--space-10);
}
.closing h2 { max-width: 18ch; }

/* --- Footer — Partie 3 §5 --- */
.footer {
  background: var(--color-noyer);
  color: var(--color-ivoire);
  padding: var(--space-7) 0 var(--space-5);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}
@media (max-width: 700px) {
  .footer__grid { grid-template-columns: 1fr; }
}
.footer .logo { color: var(--color-ivoire); }
.footer p { color: rgba(243, 236, 225, 0.75); font-size: 0.9rem; }
.footer h3 { color: var(--color-sauge); margin-bottom: var(--space-3); }
.footer__list li { margin-bottom: var(--space-2); }
.footer__list a {
  position: relative;
  text-decoration: none;
  color: rgba(243, 236, 225, 0.8);
  font-size: 0.9rem;
  transition: color var(--duration-micro) var(--ease);
}
.footer__list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-block) var(--ease-signature);
}
.footer__list a:hover { color: var(--color-ivoire); }
.footer__list a:hover::after { transform: scaleX(1); transform-origin: left; }
.footer__bottom {
  border-top: 1px solid rgba(243, 236, 225, 0.15);
  padding-top: var(--space-4);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.8rem;
  color: rgba(243, 236, 225, 0.55);
}

/* --- Citation — Partie 2 §2.2 : Cormorant Garamond réservé aux titres ET citations --- */
.quote {
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1.45;
  color: var(--color-noyer);
  max-width: 60ch;
}
.quote + .quote { margin-top: var(--space-4); }

/* --- Formulaires — Partie 3 §11 --- */
.form { max-width: 560px; }
.field { margin-bottom: var(--space-5); }
.field label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-taupe-fonce);
  margin-bottom: var(--space-2);
}
.field input,
.field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-noyer);
  background: var(--color-blanc-chaud);
  border: 1px solid var(--color-taupe);
  border-radius: var(--radius);
  padding: var(--space-3);
  transition: border-color var(--duration-micro) var(--ease);
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-noyer);
}
.field__hint {
  font-size: 0.8rem;
  color: var(--color-taupe);
  margin-top: var(--space-2);
}
.form__note {
  font-size: 0.88rem;
  color: var(--color-taupe-fonce);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(64, 49, 42, 0.15);
}

/* --- Contenu long (pages légales) --- */
.prose h2 { font-size: 1.3rem; margin-top: var(--space-7); margin-bottom: var(--space-3); }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: var(--color-taupe-fonce); font-size: 0.98rem; margin-bottom: var(--space-3); }
.prose ul { margin: 0 0 var(--space-3); }
.prose li { position: relative; padding-left: var(--space-4); margin-bottom: var(--space-2); }
.prose li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-taupe);
}
.prose strong { color: var(--color-noyer); font-weight: 600; }
.placeholder { color: var(--color-terracotta); font-style: italic; }

/* --- Liste de profils (Collaborer) --- */
.profile-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}
.profile-list li {
  font-size: 0.98rem;
  color: var(--color-noyer);
  padding: var(--space-2) 0;
  border-bottom: 1px solid transparent;
}
.profile-list li::before { content: "— "; color: var(--color-taupe); }
.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--duration-block) var(--ease-signature),
              transform var(--duration-block) var(--ease-signature);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Cascade orchestrée — un seul mouvement, pas des effets dispersés */
.pillars .card:nth-child(1) { transition-delay: 0ms; }
.pillars .card:nth-child(2) { transition-delay: 90ms; }
.pillars .card:nth-child(3) { transition-delay: 180ms; }
.principles .principle:nth-child(1) { transition-delay: 0ms; }
.principles .principle:nth-child(2) { transition-delay: 90ms; }
.principles .principle:nth-child(3) { transition-delay: 180ms; }