/* ========================================
   CONSTANCE GROUP — Base
   Partagé par toutes les pages
   ======================================== */

/* --- Variables --- */
:root {
  --ink: #1a2b33;
  --ink-soft: #3a4b53;
  --cream: #f5f0e6;
  --cream-light: #faf6ed;
  --taupe: #a59f8a;
  --sienna: #7a4039;
  --sienna-light: #9c5a52;
  --gold: #c2a46b;
  --line: #d9d0bf;
  --white: #ffffff;
  --muted: #7a7368;

  --font-serif: 'Fraunces', 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Inter', -apple-system, 'Segoe UI', sans-serif;

  --max-width: 1320px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background-color: var(--cream-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

ul { list-style: none; }

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

::selection {
  background: var(--sienna);
  color: var(--cream);
}

/* --- Typographie --- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h1 {
  font-size: clamp(2.8rem, 6.5vw, 5.5rem);
  font-weight: 300;
  font-style: italic;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
}

h3 {
  font-size: clamp(1.4rem, 2vw, 1.9rem);
  font-weight: 400;
}

h4 {
  font-size: 1.15rem;
  font-weight: 500;
}

p {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.85;
}

.lead {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--ink-soft);
  font-weight: 300;
}

.label {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--sienna);
}

.italic-serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2.5rem;
}

.container--narrow {
  max-width: 820px;
}

.section {
  padding: 7rem 0;
}

.section--tight {
  padding: 4rem 0;
}

.section--dark {
  background: var(--ink);
  color: var(--cream);
}

.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: var(--cream);
}

.section--dark p {
  color: rgba(245, 240, 230, 0.75);
}

.section--cream {
  background: var(--cream);
}

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1.5rem 0;
  background: rgba(250, 246, 237, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--line);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2.5rem;
}

.header__logo {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.header__logo span {
  font-size: 0.65rem;
  font-family: var(--font-sans);
  font-style: normal;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--sienna);
  display: block;
  margin-top: 0.1rem;
  font-weight: 500;
}

/* --- Navigation --- */
.nav__list {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav__link {
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color var(--transition);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--sienna);
  transition: width var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--sienna);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__lang {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  font-weight: 500;
  color: var(--muted);
  padding-left: 1.5rem;
  border-left: 1px solid var(--line);
}

.nav__lang a.active {
  color: var(--sienna);
}

/* --- Burger --- */
.burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 28px;
  z-index: 200;
}

.burger__line {
  width: 100%;
  height: 1.5px;
  background: var(--ink);
  transition: transform var(--transition), opacity var(--transition);
}

.burger.active .burger__line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.burger.active .burger__line:nth-child(2) {
  opacity: 0;
}

.burger.active .burger__line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  background: var(--ink);
  color: var(--cream);
  border: 1px solid var(--ink);
  transition: all var(--transition);
  cursor: pointer;
}

.btn:hover {
  background: var(--sienna);
  border-color: var(--sienna);
}

.btn--outline {
  background: transparent;
  color: var(--ink);
}

.btn--outline:hover {
  background: var(--ink);
  color: var(--cream);
}

.btn--light {
  background: var(--cream);
  color: var(--ink);
  border-color: var(--cream);
}

.btn--light:hover {
  background: var(--sienna);
  border-color: var(--sienna);
  color: var(--cream);
}

.btn__arrow {
  font-size: 1rem;
  transition: transform var(--transition);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--sienna);
  transition: gap var(--transition);
}

.link-arrow:hover {
  gap: 1rem;
}

/* --- Intro narrative (partagé index + histoire + métiers) --- */
.intro-narrative {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.intro-narrative .label {
  margin-bottom: 1.5rem;
}

.intro-narrative h2 {
  margin-bottom: 2.5rem;
}

.intro-narrative p {
  font-size: 1.15rem;
  line-height: 1.95;
  margin-bottom: 1.5rem;
}

.intro-narrative p:last-child {
  margin-bottom: 0;
}

/* --- Chiffres (partagé index + métiers) --- */
.chiffres {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
  padding: 5rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.chiffre {
  text-align: center;
  padding: 0 1rem;
}

.chiffre__value {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 4vw, 3.8rem);
  font-weight: 300;
  line-height: 1;
  color: var(--sienna);
  margin-bottom: 0.6rem;
}

.chiffre__unit {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 400;
  margin-left: 0.3rem;
}

.chiffre__label {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 500;
}

/* --- Récit alterné (partagé histoire + métiers) --- */
.recit {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  margin-bottom: 6rem;
}

.recit:last-child {
  margin-bottom: 0;
}

.recit--reverse {
  direction: rtl;
}

.recit--reverse > * {
  direction: ltr;
}

.recit__image img {
  width: 100%;
  height: 560px;
  object-fit: cover;
}

.recit__content .label {
  margin-bottom: 1.2rem;
  display: block;
}

.recit__content h2 {
  margin-bottom: 1.8rem;
}

.recit__content p {
  margin-bottom: 1.3rem;
  font-size: 1.02rem;
  line-height: 1.85;
}

.recit__quote {
  margin: 2rem 0;
  padding-left: 1.8rem;
  border-left: 2px solid var(--sienna);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--ink);
  line-height: 1.6;
}

.recit__quote-author {
  display: block;
  margin-top: 0.8rem;
  font-family: var(--font-sans);
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

/* --- Citation pleine largeur (partagé histoire + contact) --- */
.citation-full {
  padding: 8rem 0;
  text-align: center;
  background: var(--ink);
  color: var(--cream);
  position: relative;
}

.citation-full__mark {
  font-family: var(--font-serif);
  font-size: 8rem;
  line-height: 0.5;
  color: var(--gold);
  opacity: 0.3;
  margin-bottom: 2rem;
  display: block;
}

.citation-full__text {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-style: italic;
  font-weight: 300;
  line-height: 1.45;
  max-width: 900px;
  margin: 0 auto 2rem;
  color: var(--cream);
}

.citation-full__author {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
}

/* --- Timeline (partagé histoire + contact) --- */
.timeline {
  max-width: 900px;
  margin: 0 auto;
}

.timeline__item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 3rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.timeline__item:first-child {
  border-top: 1px solid var(--line);
}

.timeline__year {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--sienna);
  line-height: 1;
  padding-top: 0.3rem;
}

.timeline__title {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
  font-family: var(--font-serif);
  font-weight: 400;
}

.timeline__text {
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 620px;
}

/* --- Page hero interne (partagé histoire + métiers + contact) --- */
.page-hero {
  padding: 5rem 0 3.5rem;
  background: var(--cream);
  border-bottom: 1px solid var(--line);
}

.page-hero .label {
  margin-bottom: 1.2rem;
  display: inline-block;
}

.page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  margin-bottom: 1.5rem;
  max-width: 900px;
}

.page-hero__text {
  font-size: 1.15rem;
  max-width: 620px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* --- Section header (partagé histoire + métiers + contact) --- */
.section-head {
  max-width: 720px;
  margin: 0 auto 4rem;
  text-align: center;
}

.section-head--left {
  margin: 0 0 4rem;
  text-align: left;
}

.section-head .label {
  margin-bottom: 1.2rem;
  display: inline-block;
}

.section-head h2 {
  margin-bottom: 1.2rem;
}

.section-head__text {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Footer --- */
.footer {
  background: var(--ink);
  color: var(--cream);
  padding: 5rem 0 2rem;
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(245, 240, 230, 0.15);
}

.footer__brand-name {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 2rem;
  color: var(--cream);
  margin-bottom: 0.5rem;
}

.footer__tagline {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.footer__desc {
  font-size: 0.88rem;
  color: rgba(245, 240, 230, 0.7);
  max-width: 280px;
  line-height: 1.7;
}

.footer__title {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
  font-weight: 600;
  font-family: var(--font-sans);
}

.footer__link {
  display: block;
  font-size: 0.88rem;
  color: rgba(245, 240, 230, 0.7);
  margin-bottom: 0.7rem;
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--cream);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  font-size: 0.78rem;
  color: rgba(245, 240, 230, 0.5);
}

.footer__social {
  display: flex;
  gap: 1.2rem;
}

.footer__social a {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: rgba(245, 240, 230, 0.7);
  transition: color var(--transition);
}

.footer__social a:hover {
  color: var(--gold);
}

/* --- Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1), transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .chiffres {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem 2rem;
  }

  .recit,
  .recit--reverse {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    direction: ltr;
  }

  .recit__image img {
    height: 400px;
  }

  .footer__top {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  .header__inner {
    padding: 0 1.5rem;
  }

  .section {
    padding: 4.5rem 0;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--cream-light);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right var(--transition);
    z-index: 150;
  }

  .nav.open {
    right: 0;
  }

  .nav__list {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
  }

  .nav__link {
    font-size: 1.2rem;
  }

  .burger {
    display: flex;
  }

  .chiffres {
    padding: 3rem 0;
  }

  .timeline__item {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .timeline__year {
    font-size: 1.8rem;
  }

  .recit__image img {
    height: 320px;
  }

  .footer__top {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 1rem;
  }

  .citation-full {
    padding: 5rem 0;
  }
}

@media (max-width: 480px) {
  .chiffres {
    grid-template-columns: 1fr 1fr;
    gap: 2rem 1rem;
  }
}