/* ==========================================================================
   Police hébergée sur le site (pas d'appel à Google Fonts, conforme RGPD)
   Bricolage Grotesque, police variable sous licence SIL Open Font License
   ========================================================================== */
@font-face {
  font-family: "Bricolage Grotesque";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../assets/fonts/bricolage-grotesque-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Bricolage Grotesque";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../assets/fonts/bricolage-grotesque-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ==========================================================================
   Tokens (issus de la maquette Figma)
   ========================================================================== */
:root {
  --color-primary: #5a3bcc;
  --color-primary-hover: #4a2fb0;
  --color-ink: #110833;
  --color-muted: #4f4e55;
  --color-btn-secondary-bg: #f2f2f3;
  --color-btn-secondary-border: #dfdfdf;
  --color-btn-secondary-text: #434343;
  --color-border: #ddd;
  --color-bg: #fff;

  --font: "Bricolage Grotesque", system-ui, sans-serif;

  --container: 1280px;
  --gutter: 116px;
  --radius: 10px;
}

/* ==========================================================================
   Base
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p {
  margin: 0;
}

img {
  display: block;
}

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

.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ==========================================================================
   Boutons
   ========================================================================== */

.btns {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  line-height: normal;
  white-space: nowrap;
  transition: background-color .2s ease, border-color .2s ease;
}

.btn--primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

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

.btn--secondary {
  background: var(--color-btn-secondary-bg);
  border-color: var(--color-btn-secondary-border);
  color: var(--color-btn-secondary-text);
}

.btn--secondary:hover {
  background: #e7e7e9;
}

.btn:focus-visible,
.contact-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding-block: 32px;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-header .btns {
  flex-wrap: nowrap;
}

.brand {
  font-size: 16px;
  font-weight: 400;
  text-transform: uppercase;
  color: var(--color-muted);
}

.brand__name {
  font-weight: 500;
}

.brand strong {
  font-weight: 700;
}

.brand--light {
  color: #fff;
}

.brand__first {
  text-transform: none;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  padding-top: 64px;
  padding-bottom: 24px;
}

.hero__text {
  max-width: 718px;
  font-size: 24px;
  line-height: 1.5;
}

.hero__text strong {
  font-weight: 600;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

/* ==========================================================================
   Projets
   ========================================================================== */
.projects {
  padding-block: 64px;
  scroll-margin-top: 110px; /* hauteur du header fixe */
}

.projects__inner {
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.project-group {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.project-group__title {
  font-size: 16px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-muted);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.project {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.project__media {
  position: relative;
  overflow: hidden;
  /* Ratio de la maquette : 410.67 × 342.18 */
  aspect-ratio: 410.667 / 342.18;
  background: var(--bg, #f2f2f3);
}

/* Carte cliquable : lien vers l'étude de cas */
a.project .project__media > * {
  transition: scale .4s ease;
}

a.project:hover .project__media > * {
  scale: 1.03;
}

a.project .project__title {
  transition: color .2s ease;
}

a.project:hover .project__title {
  color: var(--color-primary);
}

a.project:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
}

.project__info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.project__title {
  font-size: 20px;
  font-weight: 600;
  line-height: normal;
}

.project__desc {
  font-size: 18px;
  line-height: 1.5;
  color: var(--color-muted);
}

/* ==========================================================================
   Étude de cas
   ========================================================================== */
.case-hero {
  padding-block: 64px;
}

.case-hero__inner {
  display: grid;
  grid-template-columns: 616fr 628fr;
  align-items: center;
  gap: 36px;
}

.case-hero__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
}

.case-hero__heading {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-hero__title-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.back-link {
  position: relative;
  display: block;
  border-radius: var(--radius);
  transition: translate .2s ease;
}

/* Copie violette de la flèche, révélée au survol */
.back-link::after {
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--color-primary);
  /* SVG intégré : un masque chargé depuis un fichier est bloqué en local (file://) */
  --arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 52 52'%3E%3Cpath d='M10.8333 26L10.0673 25.234L9.30127 26L10.0673 26.766L10.8333 26ZM36.8333 27.0833C37.4316 27.0833 37.9167 26.5983 37.9167 26C37.9167 25.4017 37.4316 24.9167 36.8333 24.9167V26V27.0833ZM19.5 17.3333L18.734 16.5673L10.0673 25.234L10.8333 26L11.5994 26.766L20.266 18.0994L19.5 17.3333ZM10.8333 26L10.0673 26.766L18.734 35.4327L19.5 34.6667L20.266 33.9006L11.5994 25.234L10.8333 26ZM10.8333 26V27.0833H36.8333V26V24.9167H10.8333V26Z'/%3E%3C/svg%3E");
  -webkit-mask: var(--arrow) center / contain no-repeat;
  mask: var(--arrow) center / contain no-repeat;
  opacity: 0;
  transition: opacity .2s ease;
}

.back-link:hover {
  translate: -4px 0;
}

.back-link img {
  transition: opacity .2s ease;
}

.back-link:hover img {
  opacity: 0;
}

.back-link:hover::after {
  opacity: 1;
}

.back-link:focus-visible {
  outline: 2px solid var(--color-primary);
}

.case-hero__title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.3;
}

.case-hero__lead {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag {
  padding: 8px 10px;
  border: 1px solid #515151;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  color: #515151;
}

/* Visuel du hero, au ratio 628 × 494 */
.case-hero__media {
  aspect-ratio: 628 / 494;
}

/* --- Infos clés --- */
.case-meta {
  padding-block: 64px;
}

.case-meta__list {
  display: flex;
  /* 64px de part et d'autre du séparateur */
  gap: 129px;
  margin: 0;
}

.case-meta__item {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-meta__item + .case-meta__item {
  position: relative;
}

.case-meta__item + .case-meta__item::before {
  content: "";
  position: absolute;
  left: -65px;
  top: 0;
  bottom: 0;
  border-left: 1px solid var(--color-border);
}

.case-meta dt,
.case-section__title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  color: #515151;
}

.case-meta dd {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.5;
}

/* --- Texte --- */
.case-content {
  padding-block: 48px;
}

.case-content__inner {
  display: flex;
  flex-direction: column;
  gap: 72px;
  max-width: 768px;
  margin-inline: auto;
}

.case-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-section__body {
  font-size: 18px;
  line-height: 1.5;
}

.case-section__body > * {
  margin: 0;
}

.case-section__body > * + * {
  margin-top: 1.5em;
}

.case-section__body > .lead-in + ul,
.case-section__body > .lead-in + ol {
  margin-top: 0;
}

.case-section__body ul,
.case-section__body ol {
  padding-left: 27px;
}

.case-section__body strong {
  font-weight: 700;
}

.placeholder {
  color: #8a8994;
  font-style: italic;
}

/* --- Galerie --- */
.case-gallery {
  padding-block: 72px;
}

.case-gallery__inner {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.case-gallery img {
  width: 100%;
  height: auto;
}

.case-gallery__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

/* --- Zoom des images (lightbox) --- */
.case-gallery img,
.case-hero__media img {
  cursor: zoom-in;
}

.lightbox {
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 24px 0;
  border: 0;
  background: transparent;
  overflow-y: auto;
}

.lightbox::backdrop {
  background: rgba(30, 30, 30, 0.85);
}

.lightbox[open] {
  display: flex;
  animation: lightbox-in 0.2s ease;
}

/* L'image occupe tout l'espace disponible en gardant ses proportions
   (les visuels sont exportés en 2x, ils restent nets en grand) */
.lightbox__img {
  width: 94vw;
  height: 90vh;
  margin: auto;
  object-fit: contain;
  cursor: zoom-out;
}

.lightbox__btn {
  position: fixed;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font: inherit;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease;
}

.lightbox__btn:hover,
.lightbox__btn:focus-visible {
  background: rgba(255, 255, 255, 0.24);
}

.lightbox__btn[hidden] {
  display: none;
}

.lightbox__close { top: 16px; right: 16px; }
.lightbox__prev  { left: 16px; top: 50%; transform: translateY(-50%); }
.lightbox__next  { right: 16px; top: 50%; transform: translateY(-50%); }

@keyframes lightbox-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ==========================================================================
   V2 (maquettes Figma d'octobre)
   ========================================================================== */
.site-header { padding-block: 24px; }
.brand { display: inline-flex; align-items: center; gap: 26px; }
.brand__avatar { width: 60px; height: 60px; border-radius: 50%; }

.projects { padding-block: 48px 64px; }
.projects__inner { gap: 40px; }
.filters { display: flex; flex-wrap: wrap; gap: 10px; }
.filter {
  padding: 8px 10px; border: 0; border-radius: var(--radius);
  background: #f2f2f3; color: var(--color-ink);
  font: inherit; font-size: 16px; font-weight: 500; cursor: pointer;
  transition: background-color .2s ease, color .2s ease;
}
.filter:hover { background: #e7e7e9; }
.filter[aria-pressed="true"] { background: var(--color-primary); color: #fff; }
.filter:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.project-grid { gap: 24px; }
.project { gap: 16px; }
.project[hidden] { display: none; }
.project__media img { width: 100%; height: 100%; object-fit: cover; }
.project__info { flex-direction: row; align-items: center; gap: 14px; }
.tag--sm { padding: 6px 8px; font-size: 14px; }

.case-hero__media { position: relative; overflow: hidden; background: var(--bg, #f2f2f3); }
.case-hero__media img { width: 100%; height: 100%; object-fit: cover; }
.case-content__inner { gap: 40px; }
.case-figure { margin: 0; }
.case-figure img { width: 100%; height: auto; cursor: zoom-in; }

/* Deux visuels côte à côte, chacun cliquable séparément */
.case-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap, 20px);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--color-ink);
  color: #fff;
  padding-block: 24px;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  white-space: nowrap;
}

.contact-link:hover {
  text-decoration: underline;
}

.not-found {
  padding-block: 120px;
}

.not-found .hero__text {
  margin-top: 16px;
}

/* Liens dans les textes (mentions légales…) */
.case-section__body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1200px) {
  :root {
    --gutter: 48px;
  }
}

/* Header : boutons empilés, nom et métier sur deux lignes, photo agrandie */
@media (max-width: 820px) {
  .site-header .btns {
    flex-direction: column;
    gap: 10px;
  }

  .site-header .brand {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-header .brand__text {
    display: flex;
    flex-direction: column;
  }

  .site-header .brand__sep {
    display: none;
  }

  .site-header .brand__avatar {
    width: 80px;
    height: 80px;
  }

  .projects {
    scroll-margin-top: 210px; /* header plus haut */
  }

  .brand {
    gap: 10px;
  }
}

@media (max-width: 900px) {
  .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__inner {
    flex-wrap: wrap;
    column-gap: 32px;
  }

  .site-footer__inner .brand {
    flex-basis: 100%;
  }

  .case-hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .case-meta__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 64px;
  }

  .case-meta__item + .case-meta__item::before {
    display: none;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 16px;
  }

  .site-header {
    padding-block: 20px;
  }

  .brand {
    gap: 12px;
    font-size: 14px;
  }

  .site-header .brand__avatar {
    width: 64px;
    height: 64px;
  }

  .hero,
  .projects {
    padding-block: 40px;
  }

  .hero__text {
    font-size: 20px;
  }

  .projects__inner {
    gap: 48px;
  }

  .project-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .case-hero,
  .case-meta,
  .case-content,
  .case-gallery {
    padding-block: 40px;
  }

  .case-hero__title {
    font-size: 36px;
  }

  .case-meta__list {
    gap: 24px;
  }

  .case-meta dt,
  .case-section__title {
    font-size: 20px;
  }

  .case-section__body {
    font-size: 16px;
  }

  .case-content__inner {
    gap: 48px;
  }

  .case-gallery__inner {
    gap: 16px;
  }

  .case-gallery__row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* Petits mobiles : header compacté pour éviter tout débordement */
@media (max-width: 420px) {
  .site-header .brand {
    min-width: 0;
  }

  .site-header .brand__avatar {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
  }

  .site-header .btn {
    padding: 10px 12px;
    font-size: 14px;
  }
}