/* ============================================================
   LémAlp — main.css
   1.  Base
   2.  Utilitaires & grille
   3.  Signature graphique (le trait)
   4.  Boutons & liens
   5.  Header / navigation
   6.  Hero
   7.  Bandeau défilant
   8.  Ce qu'on fait
   9.  Projets
   10. À propos
   11. Suisse romande
   12. Contact & formulaire
   13. Footer
   14. Pages secondaires
   15. Animations / reveal
   16. Responsive
   ============================================================ */

/* ------------------------------------------------------------
   1. Base
   ------------------------------------------------------------ */

body {
  font-family: var(--sans);
  font-size: var(--t-body);
  color: var(--texte);
  background: var(--creme);
  font-weight: 400;
}

main { display: block; }

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--marge);
  z-index: 999;
  background: var(--noir);
  color: var(--blanc);
  padding: .7rem 1.1rem;
  font-size: var(--t-small);
}
.skip-link:focus { top: 12px; }

/* ------------------------------------------------------------
   2. Utilitaires & grille
   ------------------------------------------------------------ */

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--marge);
}

.bleed {
  width: 100%;
  overflow-x: clip;
}

.grid12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Fonds */
.bg-creme   { background: var(--creme);   color: var(--texte); }
.bg-glacier { background: var(--glacier-pale); color: var(--texte); }
.bleu-bg    { background: var(--leman);   color: var(--blanc); }
.noir-bg    { background: var(--noir);    color: var(--creme); }

/* Typographie */
.label {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  line-height: 1.2;
  color: var(--leman);
}
.bleu-bg .label,
.noir-bg .label { color: rgba(255,255,255,.72); }

.label--mute { color: var(--texte-mute); }

.display {
  font-size: var(--t-display);
  font-weight: 500;
  line-height: .93;
  letter-spacing: var(--ls-tight);
}

.h1 {
  font-size: var(--t-h1);
  font-weight: 500;
  line-height: .96;
  letter-spacing: var(--ls-tight);
}

.h2 {
  font-size: var(--t-h2);
  font-weight: 500;
  line-height: 1;
  letter-spacing: var(--ls-tight);
}

.h3 {
  font-size: var(--t-h3);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -.018em;
}

.lead {
  font-size: var(--t-lead);
  line-height: 1.45;
  color: var(--texte-mute);
  max-width: 34ch;
}
.bleu-bg .lead, .noir-bg .lead { color: rgba(255,255,255,.78); }

.it {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--leman);
  letter-spacing: -.01em;
}
.bleu-bg .it, .noir-bg .it { color: var(--glacier); }

.mono-num {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* ------------------------------------------------------------
   3. Signature graphique — « le trait »
   Une mesure abstraite : un long filet + trois graduations.
   Il se dessine au scroll.
   ------------------------------------------------------------ */

.trait {
  display: block;
  width: 100%;
  max-width: 240px;
  height: 14px;
  overflow: visible;
}
.trait path {
  stroke: var(--leman);
  stroke-width: 1.4;
  fill: none;
  stroke-linecap: square;
}
.bleu-bg .trait path,
.noir-bg .trait path { stroke: var(--glacier); }

.trait--wide { max-width: 100%; }
.trait--tick path { stroke-width: 1.4; }

/* état animé */
.trait path { transition: stroke-dashoffset 1.05s var(--ease-out); }
.js .trait path {
  stroke-dasharray: var(--len, 260);
  stroke-dashoffset: var(--len, 260);
}
.trait.is-drawn path { stroke-dashoffset: 0; }
.trait.is-drawn path:nth-child(2) { transition-delay: .18s; }
.trait.is-drawn path:nth-child(3) { transition-delay: .28s; }
.trait.is-drawn path:nth-child(4) { transition-delay: .38s; }

/* ------------------------------------------------------------
   4. Boutons & liens
   ------------------------------------------------------------ */

.btn {
  --btn-bg: var(--noir);
  --btn-fg: var(--creme);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  padding: 1.05rem 1.7rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--t-small);
  font-weight: 600;
  letter-spacing: .02em;
  border-radius: 999px;
  overflow: hidden;
  isolation: isolate;
  will-change: transform;
  transition: transform .45s var(--ease-out), background-color var(--d-fast) var(--ease);
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--leman);
  transform: translateY(101%);
  transition: transform .5s var(--ease-out);
  z-index: -1;
}
.btn:hover::before, .btn:focus-visible::before { transform: translateY(0); }

.btn .btn-in {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  will-change: transform;
  transition: transform .45s var(--ease-out);
}

.btn .arrow {
  width: 15px; height: 15px;
  transition: transform .4s var(--ease-out);
}
.btn:hover .arrow { transform: translateX(5px); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--texte);
  border: 1px solid var(--filet);
}
.btn--ghost::before { background: var(--noir); }
.btn--ghost:hover, .btn--ghost:focus-visible { color: var(--creme); border-color: transparent; }

.btn--light {
  --btn-bg: var(--blanc);
  --btn-fg: var(--noir);
}
.btn--light::before { background: var(--noir); }
.btn--light:hover, .btn--light:focus-visible { color: var(--blanc); }

.btn--big { padding: 1.25rem 2.1rem; font-size: 1rem; }

/* Lien souligné qui se dessine */
.lien {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: .5rem;
  font-weight: 500;
  padding-bottom: 3px;
}
.lien::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .45s var(--ease-out);
}
.lien:hover::after, .lien:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}
.lien .arrow { width: 13px; height: 13px; transition: transform .4s var(--ease-out); }
.lien:hover .arrow { transform: translate(4px, -4px); }

/* Lien qui glisse (nav, footer) */
.slide-link {
  position: relative;
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
}
.slide-link span {
  display: block;
  transition: transform .5s var(--ease-out);
}
.slide-link span::after {
  content: attr(data-txt);
  position: absolute;
  left: 0; top: 100%;
  color: var(--leman);
}
.noir-bg .slide-link span::after,
.bleu-bg .slide-link span::after { color: var(--glacier); }
.slide-link:hover span,
.slide-link:focus-visible span { transform: translateY(-100%); }

/* ------------------------------------------------------------
   5. Header / navigation
   ------------------------------------------------------------ */

.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background-color .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.is-stuck {
  background: rgba(245, 244, 240, .82);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom-color: var(--filet);
}

.header-in {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--marge);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-s);
}

.logo {
  font-size: clamp(1.18rem, 1rem + .6vw, 1.5rem);
  font-weight: 600;
  letter-spacing: -.03em;
  line-height: 1;
  display: inline-block;
}
.logo .lem { color: var(--leman); }
.logo .alp { color: var(--noir); }

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1.4rem, 2.5vw, 2.6rem);
}
.nav a {
  font-size: var(--t-small);
  font-weight: 500;
}
.nav a[aria-current="page"] { color: var(--leman); }

.burger {
  display: none;
  width: 42px; height: 42px;
  margin-right: -8px;
  position: relative;
  z-index: 120;
}
.burger i {
  display: block;
  position: absolute;
  left: 9px;
  width: 24px; height: 1.5px;
  background: var(--noir);
  transition: transform .4s var(--ease-out), opacity .25s var(--ease);
}
.burger i:nth-child(1) { top: 16px; }
.burger i:nth-child(2) { top: 24px; }
body.menu-open .burger i:nth-child(1) { transform: translateY(4px) rotate(45deg); }
body.menu-open .burger i:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
body.menu-open .burger i { background: var(--creme); }

.menu {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: var(--noir);
  color: var(--creme);
  padding: calc(var(--header-h) + 2.2rem) var(--marge) 2.4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .62s var(--ease-out);
  visibility: hidden;
}
body.menu-open .menu {
  clip-path: inset(0 0 0 0);
  visibility: visible;
}
.menu-nav { display: flex; flex-direction: column; gap: .3rem; }
.menu-nav a {
  font-size: clamp(2.1rem, 11vw, 3.2rem);
  font-weight: 500;
  letter-spacing: var(--ls-tight);
  line-height: 1.18;
  display: block;
  overflow: hidden;
}
.menu-nav a > span {
  display: block;
  transform: translateY(105%);
  transition: transform .6s var(--ease-out);
}
body.menu-open .menu-nav a > span { transform: translateY(0); }
body.menu-open .menu-nav a:nth-child(1) > span { transition-delay: .12s; }
body.menu-open .menu-nav a:nth-child(2) > span { transition-delay: .19s; }
body.menu-open .menu-nav a:nth-child(3) > span { transition-delay: .26s; }
body.menu-open .menu-nav a:nth-child(4) > span { transition-delay: .33s; }

.menu-foot {
  display: flex;
  flex-direction: column;
  gap: .9rem;
  opacity: 0;
  transition: opacity .5s var(--ease) .34s;
}
body.menu-open .menu-foot { opacity: 1; }
.menu-foot a { font-size: var(--t-small); }
.menu-social { display: flex; gap: 1.4rem; }

/* ------------------------------------------------------------
   6. Hero
   ------------------------------------------------------------ */

.hero {
  padding-top: calc(var(--header-h) + clamp(2rem, 6vw, 4.5rem));
  padding-bottom: clamp(2.2rem, 5vw, 4rem);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  align-items: end;
}

.hero-txt { grid-column: 1 / -1; }

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: clamp(1.4rem, 3vw, 2.4rem);
}
.hero-eyebrow .dot {
  width: 7px; height: 7px;
  background: var(--leman);
  border-radius: 50%;
  flex: none;
}

.hero-title { margin-bottom: clamp(1.4rem, 2.6vw, 2rem); }

.hero-sub {
  max-width: 30ch;
  font-size: var(--t-lead);
  line-height: 1.4;
  color: var(--texte-mute);
  margin-bottom: clamp(1.8rem, 3.4vw, 2.6rem);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.hero-media {
  grid-column: 1 / -1;
  margin-top: clamp(2.2rem, 5vw, 0rem);
  position: relative;
}
.hero-fig { position: relative; overflow: hidden; }
.hero-fig img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 42%;
  will-change: transform;
}
.hero-cap {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: .7rem;
  font-size: var(--t-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  font-weight: 600;
  color: var(--texte-mute);
}

.hero-trait {
  margin-top: clamp(2.4rem, 5vw, 3.6rem);
  border-top: 1px solid var(--filet);
  padding-top: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
}

/* ------------------------------------------------------------
   7. Bandeau défilant
   ------------------------------------------------------------ */

.marquee {
  background: var(--leman);
  color: var(--blanc);
  padding: .85rem 0;
  overflow: hidden;
  white-space: nowrap;
}
.marquee-track {
  display: inline-flex;
  align-items: center;
  gap: 2.4rem;
  padding-right: 2.4rem;
  animation: slide 34s linear infinite;
  will-change: transform;
}
.marquee span {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
}
.marquee .sep { opacity: .5; }
@keyframes slide {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}

/* ------------------------------------------------------------
   8. Ce qu'on fait — menu éditorial
   ------------------------------------------------------------ */

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

.metier-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.2rem;
  margin-bottom: clamp(1.6rem, 4vw, 3.2rem);
}
.metier-head .label { white-space: nowrap; }
.metier-head .trait { max-width: 180px; }

.metier-list { border-top: 1px solid var(--filet); }

.metier-row {
  position: relative;
  display: block;
  border-bottom: 1px solid var(--filet);
  padding: clamp(1.4rem, 3vw, 2.3rem) 0;
  overflow: hidden;
}
.metier-row::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--leman);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .55s var(--ease-out);
}
.metier-row-in {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: clamp(.8rem, 2vw, 2rem);
  transition: transform .55s var(--ease-out), color .4s var(--ease);
}
.metier-row .num {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  color: var(--leman);
  flex: none;
  width: 2.4rem;
  transition: color .4s var(--ease);
}
.metier-row .titre {
  font-size: clamp(1.8rem, 1.1rem + 3vw, 3.5rem);
  font-weight: 500;
  letter-spacing: var(--ls-tight);
  line-height: 1;
  flex: none;
}
.metier-row .desc {
  font-size: var(--t-body);
  color: var(--texte-mute);
  margin-left: auto;
  text-align: right;
  max-width: 26ch;
  transition: color .4s var(--ease), transform .55s var(--ease-out);
}
.metier-row .fleche {
  flex: none;
  width: 20px; height: 20px;
  opacity: 0;
  transform: translateX(-14px);
  transition: opacity .4s var(--ease), transform .55s var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .metier-row:hover::before,
  .metier-row:focus-visible::before { transform: scaleY(1); }
  .metier-row:hover .metier-row-in,
  .metier-row:focus-visible .metier-row-in {
    color: var(--blanc);
    transform: translateX(clamp(.6rem, 1.6vw, 1.6rem));
  }
  .metier-row:hover .num,
  .metier-row:focus-visible .num { color: rgba(255,255,255,.7); }
  .metier-row:hover .desc,
  .metier-row:focus-visible .desc { color: rgba(255,255,255,.85); }
  .metier-row:hover .fleche,
  .metier-row:focus-visible .fleche { opacity: 1; transform: translateX(0); }
}

/* ------------------------------------------------------------
   8b. Chiffres
   ------------------------------------------------------------ */

.chiffres { padding-block: var(--sp-l); }

.chiffres-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.2rem;
  margin-bottom: clamp(1.8rem, 3.5vw, 3rem);
}
.chiffres-head .trait { max-width: 180px; }

.chiffres-grid { display: grid; grid-template-columns: 1fr; }

.chiffre {
  border-top: 1px solid var(--filet-clair);
  padding: clamp(1.3rem, 3vw, 2.2rem) 0;
}
.chiffre:last-child { border-bottom: 1px solid var(--filet-clair); }

.chiffre-val {
  display: flex;
  align-items: baseline;
  font-size: clamp(3.1rem, 1.6rem + 6.4vw, 6.4rem);
  font-weight: 500;
  line-height: .88;
  letter-spacing: -.035em;
  font-variant-numeric: tabular-nums;
}
.chiffre-val .unit { letter-spacing: -.03em; }
.chiffre-val .unit--mot {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: .5em;
  letter-spacing: -.01em;
  margin-left: .12em;
  color: var(--glacier);
}
.chiffre-lib {
  margin-top: .7rem;
  font-size: var(--t-small);
  color: rgba(245, 244, 240, .62);
  max-width: 26ch;
}

.chiffres-note {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.4rem 2.4rem;
  flex-wrap: wrap;
  margin-top: clamp(1.6rem, 3vw, 2.4rem);
}
.chiffres-note p {
  font-size: var(--t-small);
  color: rgba(245, 244, 240, .48);
  max-width: 46ch;
}

@media (min-width: 760px) {
  .chiffres-grid { grid-template-columns: repeat(3, 1fr); }
  .chiffre { padding: clamp(1.8rem, 3vw, 2.6rem) 0 clamp(1.4rem, 2.5vw, 2rem); }
  .chiffre:last-child { border-bottom: none; }
  .chiffre + .chiffre {
    border-left: 1px solid var(--filet-clair);
    padding-left: clamp(1.4rem, 3vw, 2.8rem);
  }
}

/* ------------------------------------------------------------
   9. Projets
   ------------------------------------------------------------ */

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

.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: clamp(2rem, 4.5vw, 3.6rem);
}

.projets-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  row-gap: clamp(2.4rem, 6vw, 3.6rem);
  column-gap: var(--gutter);
}

.projet { grid-column: 1 / -1; display: block; }
.projet--a { }
.projet--b { }

.projet-fig {
  position: relative;
  overflow: hidden;
  background: var(--glacier);
}
.bg-glacier .projet-fig { background: var(--glacier); }
.projet-fig img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.05s var(--ease-out);
  will-change: transform;
}
.projet--a .projet-fig img { aspect-ratio: 16 / 11; }
.projet--b .projet-fig img { aspect-ratio: 4 / 5; }

.projet-veil {
  position: absolute;
  inset: 0;
  background: var(--leman);
  opacity: 0;
  mix-blend-mode: multiply;
  transition: opacity .55s var(--ease);
}

.projet-tag {
  position: absolute;
  left: 1rem; bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--creme);
  color: var(--noir);
  padding: .5rem .85rem;
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  border-radius: 999px;
  transform: translateY(12px);
  opacity: 0;
  transition: transform .5s var(--ease-out), opacity .4s var(--ease);
}

.projet-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--filet);
}
.projet-nom {
  font-size: clamp(1.3rem, 1.05rem + 1vw, 1.9rem);
  font-weight: 500;
  letter-spacing: -.02em;
  transition: transform .5s var(--ease-out);
  display: inline-block;
}
.projet-lieu {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--texte-mute);
}
.projet-type {
  margin-top: .8rem;
  font-size: var(--t-small);
  color: var(--texte-mute);
}

@media (hover: hover) and (pointer: fine) {
  .projet:hover .projet-fig img { transform: scale(1.05); }
  .projet:hover .projet-veil { opacity: .22; }
  .projet:hover .projet-tag { transform: translateY(0); opacity: 1; }
  .projet:hover .projet-nom { transform: translateX(8px); }
}

/* ------------------------------------------------------------
   10. À propos
   ------------------------------------------------------------ */

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

.apropos-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  row-gap: clamp(1.8rem, 4vw, 2.6rem);
  column-gap: var(--gutter);
  align-items: center;
}

.portraits {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(.7rem, 1.6vw, 1.4rem);
}
.portrait { position: relative; overflow: hidden; }
.portrait img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center 28%;
}
.portrait:nth-child(2) { margin-top: clamp(1.6rem, 5vw, 4rem); }
.portrait figcaption {
  margin-top: .6rem;
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--texte-mute);
}

.apropos-txt { grid-column: 1 / -1; }
.apropos-txt .h2 { margin-bottom: 1.2rem; }
.apropos-txt .lead { margin-bottom: 1.6rem; max-width: 38ch; }

/* ------------------------------------------------------------
   11. Suisse romande
   ------------------------------------------------------------ */

.region { position: relative; }
.region-fig { position: relative; overflow: hidden; }
.region-fig img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center 55%;
  will-change: transform;
}
.region-fig::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,15,16,.72) 0%, rgba(13,15,16,.15) 45%, rgba(13,15,16,0) 75%);
}
.region-txt {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  padding: var(--sp-s) var(--marge);
  color: var(--blanc);
}
.region-txt .label { color: rgba(255,255,255,.75); }
.region-villes {
  font-size: clamp(1.35rem, .9rem + 2.4vw, 2.7rem);
  font-weight: 500;
  letter-spacing: var(--ls-tight);
  line-height: 1.05;
  margin-top: .5rem;
}
.region-villes .sep { color: var(--glacier); }

/* ------------------------------------------------------------
   12. Contact & formulaire
   ------------------------------------------------------------ */

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

.contact-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  row-gap: clamp(2.4rem, 6vw, 3.2rem);
  column-gap: var(--gutter);
}
.contact-left  { grid-column: 1 / -1; }
.contact-right { grid-column: 1 / -1; }

.contact-title { margin-bottom: 1.6rem; }

.contact-mail {
  display: inline-block;
  font-size: clamp(1.15rem, .9rem + 1.4vw, 1.9rem);
  font-weight: 500;
  letter-spacing: -.02em;
  word-break: break-word;
  margin-bottom: 2rem;
}

.contact-socials {
  display: flex;
  gap: clamp(1.8rem, 4vw, 3.2rem);
  flex-wrap: wrap;
}
.contact-socials .k {
  display: block;
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  opacity: .7;
  margin-bottom: .35rem;
}
.contact-socials .v { font-size: var(--t-body); font-weight: 500; }

/* Form */
.form { display: grid; gap: 1.4rem; }
.field { position: relative; }
.field label {
  display: block;
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  margin-bottom: .5rem;
  opacity: .78;
}
.field input,
.field textarea {
  width: 100%;
  padding: .85rem 0;
  border-bottom: 1px solid var(--filet-clair);
  color: inherit;
  font-size: 1rem;
  transition: border-color .35s var(--ease);
}
.field textarea { resize: vertical; min-height: 110px; }
.field input::placeholder,
.field textarea::placeholder { color: rgba(255,255,255,.42); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--blanc);
}
.field:focus-within label { opacity: 1; }

.form-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-top: .6rem;
}
.form-note { font-size: var(--t-small); opacity: .65; max-width: 34ch; }

.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

/* Variante formulaire sur fond clair */
.form--light .field input,
.form--light .field textarea { border-bottom-color: var(--filet); }
.form--light .field input::placeholder,
.form--light .field textarea::placeholder { color: rgba(13,15,16,.35); }
.form--light .field input:focus,
.form--light .field textarea:focus { border-bottom-color: var(--noir); }

/* ------------------------------------------------------------
   13. Footer
   ------------------------------------------------------------ */

.footer {
  background: var(--noir);
  color: var(--creme);
  padding: var(--sp-l) 0 var(--sp-s);
}
.footer-top {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  row-gap: clamp(1.8rem, 4vw, 2.4rem);
  column-gap: var(--gutter);
  padding-bottom: var(--sp-m);
}
.footer-brand { grid-column: 1 / -1; }
.footer .logo .alp { color: var(--creme); }
.footer-tag {
  margin-top: .9rem;
  font-size: var(--t-small);
  color: rgba(245,244,240,.6);
  line-height: 1.5;
}
.footer-col { grid-column: span 6; }
.footer-col .col-title {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: rgba(245,244,240,.45);
  margin-bottom: .9rem;
}
.footer-col li + li { margin-top: .5rem; }
.footer-col a { font-size: var(--t-small); }

.footer-trait { padding: 1.4rem 0; }

.footer-bottom {
  border-top: 1px solid var(--filet-clair);
  padding-top: 1.3rem;
  display: flex;
  flex-wrap: wrap;
  gap: .7rem 1.6rem;
  align-items: center;
  justify-content: space-between;
  font-size: var(--t-small);
  color: rgba(245,244,240,.55);
}
.footer-legal { display: flex; gap: 1.4rem; flex-wrap: wrap; }

/* ------------------------------------------------------------
   14. Pages secondaires
   ------------------------------------------------------------ */

.page-head {
  padding-top: calc(var(--header-h) + clamp(2.6rem, 8vw, 6rem));
  padding-bottom: clamp(2rem, 4vw, 3.4rem);
}
.page-head .label { margin-bottom: 1.1rem; }
.page-head + .contact { padding-top: clamp(1.4rem, 3vw, 2.6rem); }
.page-head + .travaux,
.page-head + .duo { padding-top: clamp(.6rem, 1.5vw, 1.4rem); }
.page-head .h1 { margin-bottom: 1.4rem; }

/* Liste projets (page projets) */
.travaux { padding-bottom: var(--sp-xl); }
.travaux-list { display: grid; gap: clamp(3rem, 7vw, 6rem); }

.travail { display: block; }
.travail-fig { position: relative; overflow: hidden; background: var(--glacier); }
.travail-fig img {
  width: 100%;
  object-fit: cover;
  transition: transform 1.05s var(--ease-out);
  will-change: transform;
  aspect-ratio: 16 / 10;
}
.travail:nth-child(even) .travail-fig img { aspect-ratio: 4 / 3; }
.travail-info {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  margin-top: 1.1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--filet);
  align-items: baseline;
}
.travail-info .nom { grid-column: 1 / -1; font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2.1rem); font-weight: 500; letter-spacing: -.02em; }
.travail-info dl { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 1.4rem 2.4rem; margin-top: .6rem; }
.travail-info dt {
  font-size: var(--t-label); font-weight: 600; letter-spacing: var(--ls-label);
  text-transform: uppercase; color: var(--texte-mute); margin-bottom: .25rem;
}
.travail-info dd { font-size: var(--t-small); }

@media (hover: hover) and (pointer: fine) {
  .travail:hover .travail-fig img { transform: scale(1.04); }
}

@media (min-width: 900px) {
  /* composition alternée : on évite deux blocs strictement identiques */
  .travail:nth-child(even) { width: 82%; margin-left: auto; }
  .travail:nth-child(even) .travail-info .nom { grid-column: 1 / span 6; }
  .travail:nth-child(even) .travail-info dl { grid-column: 8 / span 5; }
}

/* À propos page */
.duo { padding-bottom: var(--sp-xl); }
.duo-grid { display: grid; grid-template-columns: repeat(12, 1fr); row-gap: clamp(1.8rem, 4vw, 2.4rem); column-gap: var(--gutter); }
.duo-fig { grid-column: 1 / -1; }
.duo-fig img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; object-position: center 28%; }
.duo-fig figcaption { margin-top: .7rem; }
.duo-fig .duo-nom {
  display: block; font-size: var(--t-label); font-weight: 600;
  letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--texte-mute);
}
.duo-fig .duo-bio {
  display: block;
  margin-top: .8rem;
  font-size: var(--t-small);
  line-height: 1.55;
  color: var(--texte-mute);
  max-width: 42ch;
}
.duo-txt { grid-column: 1 / -1; }
.duo-txt p { margin-bottom: 1.1rem; max-width: 52ch; font-size: var(--t-lead); line-height: 1.5; }
.duo-txt p:last-of-type { margin-bottom: 1.8rem; }

/* Page merci */
.merci {
  min-height: 82vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-h) + 3rem);
  padding-bottom: var(--sp-l);
}

/* Références — « On parle de nous » */
.refs { padding-bottom: var(--sp-xl); }
.refs-list { border-top: 1px solid var(--filet); }

.ref {
  position: relative;
  display: block;
  border-bottom: 1px solid var(--filet);
}
.ref::after {
  content: "";
  position: absolute;
  left: 0; bottom: -1px;
  width: 100%; height: 1px;
  background: var(--leman);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .7s var(--ease-out);
}

.ref-in {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: .6rem clamp(1rem, 2.5vw, 2rem);
  padding: clamp(1.6rem, 3.5vw, 2.6rem) 0;
  transition: transform .55s var(--ease-out);
}

.ref-num {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  color: var(--leman);
  padding-top: .45rem;
}

.ref-apercu {
  grid-column: 2;
  width: clamp(96px, 26vw, 132px);
  overflow: hidden;
  background: var(--glacier);
  margin-bottom: .4rem;
}
.ref-apercu img {
  width: 100%;
  aspect-ratio: 3 / 3.9;
  object-fit: cover;
  transition: transform .8s var(--ease-out);
}

.ref-body { grid-column: 2; }
.ref-nom {
  font-size: clamp(1.25rem, 1.05rem + .9vw, 1.75rem);
  font-weight: 500;
  letter-spacing: -.02em;
  line-height: 1.15;
}
.ref-fonction {
  margin-top: .35rem;
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--texte-mute);
}
.ref-extrait {
  margin-top: .9rem;
  color: var(--texte-mute);
  max-width: 54ch;
}

.ref-meta {
  grid-column: 2;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.1rem;
}
.ref-date {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--texte-mute);
}
.ref-lien {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--t-small);
  font-weight: 600;
}
.ref-lien .arrow { width: 13px; height: 13px; transition: transform .45s var(--ease-out); }
.ref-lien[aria-disabled="true"] { color: var(--texte-mute); cursor: default; }

@media (hover: hover) and (pointer: fine) {
  .ref:hover::after { transform: scaleX(1); }
  .ref:hover .ref-in { transform: translateX(10px); }
  .ref:hover .ref-apercu img { transform: scale(1.05); }
  .ref:hover .ref-lien .arrow { transform: translate(4px, -4px); }
}

@media (min-width: 900px) {
  .ref-in {
    grid-template-columns: 2.6rem clamp(120px, 12vw, 160px) minmax(0, 1fr) auto;
    align-items: start;
    gap: clamp(1.4rem, 3vw, 3rem);
  }
  .ref-apercu { grid-column: 2; width: 100%; margin-bottom: 0; }
  .ref-body { grid-column: 3; }
  .ref-meta {
    grid-column: 4;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    margin-top: .2rem;
    gap: 1.4rem;
  }
}

/* Aperçu de document (sans backend) */
.doc-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  padding: clamp(1rem, 4vw, 3rem);
}
.doc-modal.is-open { display: flex; align-items: center; justify-content: center; }
.doc-modal-fond {
  position: absolute;
  inset: 0;
  background: rgba(13, 15, 16, .82);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.doc-modal-panneau {
  position: relative;
  width: min(920px, 100%);
  height: min(88vh, 100%);
  background: var(--creme);
  display: flex;
  flex-direction: column;
}
.doc-modal-barre {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--filet);
}
.doc-modal-titre {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
}
.doc-modal-actions { display: flex; align-items: center; gap: 1.2rem; }
.doc-modal-actions a { font-size: var(--t-small); font-weight: 500; }
.doc-modal-fermer {
  width: 34px; height: 34px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  line-height: 1;
}
.doc-modal-corps { flex: 1; min-height: 0; background: var(--glacier); }
.doc-modal-corps iframe,
.doc-modal-corps img {
  width: 100%;
  height: 100%;
  border: 0;
  object-fit: contain;
}
body.modal-open { overflow: hidden; }

/* Services */
.services { padding-bottom: var(--sp-xl); }
.services-list { border-top: 1px solid var(--filet); }

.service { border-bottom: 1px solid var(--filet); }
.service-in {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: .7rem clamp(1rem, 2.5vw, 2rem);
  padding: clamp(1.7rem, 3.5vw, 2.8rem) 0;
}
.service-num {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  color: var(--leman);
  padding-top: .4rem;
}
.service-titre {
  grid-column: 2;
  font-size: clamp(1.4rem, 1.1rem + 1.3vw, 2.1rem);
  font-weight: 500;
  letter-spacing: -.02em;
  line-height: 1.1;
}
.service-corps { grid-column: 2; }
.service-txt { color: var(--texte-mute); max-width: 58ch; }

.service-liste {
  margin-top: 1.1rem;
  display: grid;
  gap: .45rem;
}
.service-liste li {
  position: relative;
  padding-left: 1.1rem;
  font-size: var(--t-small);
  color: var(--texte-mute);
}
.service-liste li::before {
  content: "";
  position: absolute;
  left: 0; top: .72em;
  width: 6px; height: 1px;
  background: var(--leman);
}

@media (min-width: 900px) {
  .service-in {
    grid-template-columns: 2.6rem minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(1.4rem, 3vw, 3rem);
    align-items: start;
  }
  .service-titre { grid-column: 2; }
  .service-corps { grid-column: 3; }
  .service-liste { grid-template-columns: 1fr 1fr; gap: .5rem 1.6rem; }
}

/* Approche sur mesure */
.approche { padding-block: var(--sp-l); }
.approche-grid {
  display: grid;
  grid-template-columns: 1fr;
  row-gap: clamp(1.8rem, 4vw, 2.6rem);
  column-gap: var(--gutter);
}
.approche-txt .h2 { margin-bottom: 1.1rem; }
.approche-txt .lead { max-width: 40ch; }
.approche-liste .col-titre {
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--texte-mute);
  margin-bottom: .9rem;
}
.approche-liste .service-liste { margin-top: 0; }
.approche-note {
  margin-top: 1rem;
  font-size: var(--t-small);
  color: var(--texte-mute);
}

@media (min-width: 900px) {
  .approche-grid { grid-template-columns: repeat(12, 1fr); }
  .approche-txt { grid-column: 1 / span 6; }
  .approche-liste { grid-column: 8 / span 5; }
}

/* Pages légales */
.legal { padding-bottom: var(--sp-xl); }
.legal-body { max-width: 66ch; }
.legal-body h2 {
  font-size: var(--t-h3);
  font-weight: 500;
  letter-spacing: -.018em;
  margin-top: 2.4rem;
  margin-bottom: .7rem;
}
.legal-body h2:first-child { margin-top: 0; }
.legal-body p, .legal-body li { color: var(--texte-mute); margin-bottom: .7rem; }
.legal-body ul { list-style: none; }
.legal-body li { padding-left: 1.1rem; position: relative; }
.legal-body li::before {
  content: ""; position: absolute; left: 0; top: .72em;
  width: 6px; height: 1px; background: var(--leman);
}
.legal-body a { color: var(--leman); text-decoration: underline; text-underline-offset: 3px; }
.acompleter {
  display: inline-block;
  background: var(--glacier);
  color: var(--leman-deep);
  padding: .1rem .45rem;
  font-size: .82em;
  font-weight: 600;
  letter-spacing: .04em;
}

/* Bandeau CTA bas de page interne */
.cta-band { padding-block: var(--sp-l); }
.cta-band .h2 { margin-bottom: 1.5rem; }

/* ------------------------------------------------------------
   15. Animations / reveal
   ------------------------------------------------------------ */

/* reveal générique — uniquement si JS est actif */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .09s; }
[data-reveal][data-delay="2"] { transition-delay: .18s; }
[data-reveal][data-delay="3"] { transition-delay: .27s; }
[data-reveal][data-delay="4"] { transition-delay: .36s; }

/* reveal image : clip-path + scale
   Le clip est porté par l'image et non par la figure : un élément
   entièrement clippé n'est jamais vu par l'IntersectionObserver. */
/* tout conteneur de reveal découpe son image agrandie */
[data-img-reveal] { overflow: hidden; }
[data-img-reveal] img {
  transition: clip-path 1.05s var(--ease-out), transform 1.4s var(--ease-out);
}
.js [data-img-reveal] img {
  clip-path: inset(0 0 100% 0);
  transform: scale(1.1);
}
[data-img-reveal].is-in img {
  clip-path: inset(0 0 0 0);
  transform: scale(1);
}

/* reveal ligne par ligne */
.line {
  display: block;
  overflow: hidden;
  padding-block: .14em;
  margin-block: -.14em;
}
.line-in {
  display: block;
  transform: translateY(110%);
  transition: transform .95s var(--ease-out);
}
[data-lines].is-in .line-in { transform: translateY(0); }
.w { display: inline; }

/* séquence d'arrivée du hero */
.js .boot { opacity: 0; transform: translateY(16px); }
body.is-booted .boot {
  opacity: 1;
  transform: none;
  transition: opacity .75s var(--ease-out), transform .75s var(--ease-out);
}
body.is-booted .boot[data-boot="1"] { transition-delay: .05s; }
body.is-booted .boot[data-boot="2"] { transition-delay: .18s; }
body.is-booted .boot[data-boot="3"] { transition-delay: .3s; }
body.is-booted .boot[data-boot="4"] { transition-delay: .44s; }
body.is-booted .boot[data-boot="5"] { transition-delay: .56s; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  [data-img-reveal],
  [data-img-reveal] img,
  .boot,
  .line-in {
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
  }
  .trait path { stroke-dashoffset: 0 !important; }
}

/* ------------------------------------------------------------
   16. Responsive
   ------------------------------------------------------------ */

@media (max-width: 560px) {
  .btn { padding: .95rem 1.35rem; gap: .55rem; }
  .btn .btn-in { gap: .55rem; }
  .btn--big { padding: 1.1rem 1.6rem; font-size: .94rem; }
  .metier-head { flex-direction: column; align-items: flex-start; gap: .9rem; }
  .metier-head .trait { max-width: 140px; }
}

@media (max-width: 899px) {
  .nav { display: none; }
  .burger { display: block; }

  .metier-row .desc { display: none; }
  .metier-row .fleche { display: none; }
  .metier-row-in { justify-content: flex-start; }
  .metier-row { padding: 1.25rem 0; }
  .metier-row .num { width: 2rem; }

  .sec-head { align-items: flex-start; flex-direction: column; }
  .contact-socials { gap: 2rem; }
}

@media (min-width: 640px) {
  .footer-col { grid-column: span 3; }
}

@media (min-width: 900px) {
  .hero { padding-bottom: clamp(3rem, 5vw, 5rem); }
  .hero-grid { align-items: stretch; }
  .hero-media { align-self: end; }
  .hero-txt {
    grid-column: 1 / span 7;
    display: flex;
    flex-direction: column;
  }
  /* l'accroche s'aligne en haut de la photo, le titre en bas : le vide devient une composition */
  .hero-eyebrow { margin-bottom: auto; }
  .hero-cta { padding-top: clamp(.4rem, 1vw, 1rem); }
  .hero-media { grid-column: 9 / span 4; margin-top: 0; }
  .hero-fig img { aspect-ratio: 4 / 3; max-height: 58vh; }

  .projet--a { grid-column: 1 / span 7; }
  .projet--b { grid-column: 9 / span 4; margin-top: clamp(3rem, 8vw, 8rem); }

  .portraits  { grid-column: 1 / span 5; }
  .apropos-txt { grid-column: 7 / span 5; }

  .region-fig img { aspect-ratio: 21 / 9; }
  .region-txt { padding-bottom: var(--sp-m); }

  .contact-left  { grid-column: 1 / span 5; }
  .contact-right { grid-column: 7 / span 6; }

  .footer-brand { grid-column: 1 / span 4; }
  .footer-col:nth-of-type(1) { grid-column: 6 / span 2; }
  .footer-col:nth-of-type(2) { grid-column: 8 / span 2; }
  .footer-col:nth-of-type(3) { grid-column: 10 / span 3; }

  .travail-info .nom { grid-column: 1 / span 5; }
  .travail-info dl { grid-column: 7 / span 6; margin-top: 0; justify-content: flex-start; }

  .duo-fig { grid-column: span 4; }
  .duo-fig:nth-of-type(2) { margin-top: clamp(2rem, 6vw, 5rem); }
  .duo-txt { grid-column: 9 / span 4; }

  .form { grid-template-columns: 1fr 1fr; gap: 1.6rem 1.4rem; }
  .field--full { grid-column: 1 / -1; }
  .form-bottom { grid-column: 1 / -1; }
}

@media (min-width: 1280px) {
  .hero-txt { grid-column: 1 / span 6; }
  .hero-media { grid-column: 8 / span 5; }
}