/* Groupe 2T — feuille de style.
   Palette : papier froid / encre / signal orange / vert "en ligne".
   Famille : Archivo Black (display), Archivo (texte), IBM Plex Mono (domaines). */

:root {
  --paper: #edf0f3;
  --ink: #12151c;
  --steel: #59616e;
  --signal: #ff4d00;
  --live: #19a957;
  --line: #c7cdd4;
  --max: 64rem;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Archivo", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}

/* Règle graduée : signature du site, colle la page au monde de l'atelier. */
.ruler {
  height: 14px;
  border-bottom: 1px solid var(--ink);
  background-image:
    repeating-linear-gradient(to right,
      var(--ink) 0 1px, transparent 1px 16px),
    repeating-linear-gradient(to right,
      var(--ink) 0 1px, transparent 1px 80px);
  background-size: 100% 6px, 100% 12px;
  background-repeat: no-repeat;
  background-position: bottom left;
}

.page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  text-decoration: none;
}

.brand-mark {
  font-family: "Archivo Black", sans-serif;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.brand-name {
  font-weight: 600;
  font-size: 1.0625rem;
}

.brand-domain,
.project-domain,
.section-eyebrow,
.hero-eyebrow,
.workshop-facts dt {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8125rem;
}

.brand-domain {
  color: var(--steel);
  margin: 0;
}

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 4.5rem 1.5rem 4rem;
  border-bottom: 1px solid var(--line);
}

.hero-eyebrow {
  color: var(--signal);
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero-title {
  font-family: "Archivo Black", sans-serif;
  font-size: clamp(2.1rem, 5.4vw, 3.9rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  max-width: 21ch;
}

.hero-lead {
  max-width: 34rem;
  margin: 0;
  color: var(--steel);
  font-size: 1.125rem;
}

.projects {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.section-eyebrow {
  color: var(--steel);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 1.5rem;
}

.project-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.project + .project {
  border-top: 1px solid var(--line);
}

.project-link {
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) 2fr;
  gap: 0.5rem 2rem;
  padding: 1.6rem 0.5rem;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.project-link:hover,
.project-link:focus-visible {
  background: #e3e7ec;
}

.project-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  grid-column: 1;
}

.project-name {
  font-family: "Archivo Black", sans-serif;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.status {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 0 3px rgba(25, 169, 87, 0.18);
  flex-shrink: 0;
}

.project-desc {
  grid-column: 2;
  color: var(--steel);
  margin: 0;
}

.project-domain {
  grid-column: 2;
  margin-top: 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.arrow {
  transition: transform 0.15s ease;
}

.project-link:hover .arrow {
  transform: translateX(4px);
}

.workshop {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.5rem 1.5rem 4rem;
}

.workshop-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

.workshop-text {
  margin: 0;
  font-size: 1.125rem;
  max-width: 36rem;
}

.workshop-facts {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.1rem;
  align-content: start;
}

.workshop-facts li {
  border-left: 2px solid var(--signal);
  padding-left: 1rem;
}

.workshop-facts dt {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.workshop-facts dd {
  margin: 0.15rem 0 0;
  font-weight: 600;
}

.footer {
  border-top: 1px solid var(--ink);
  background: var(--paper);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-line {
  margin: 0;
  font-family: "Archivo Black", sans-serif;
  font-size: 0.9rem;
}

.footer-note {
  margin: 0;
  color: var(--steel);
  font-size: 0.875rem;
}

/* Mobile : les lignes projets passent en pile, l'atelier en une colonne. */
@media (max-width: 640px) {
  .hero {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }

  .project-link {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .project-head,
  .project-desc,
  .project-domain {
    grid-column: 1;
  }

  .workshop-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}