/* =========================================================
   Fanka Labs — feuille de style
   Pour appliquer votre identité visuelle, modifiez seulement
   les variables ci-dessous (couleurs et polices).
   ========================================================= */
:root {
  /* Couleurs de Fanka Labs (bleu marine du logo : #032c74) */
  --c-bg: #f6f7fb;          /* fond principal */
  --c-bg-alt: #e9eef8;      /* fond des sections alternées */
  --c-ink: #0b1630;         /* texte principal */
  --c-muted: #4d5876;       /* texte secondaire */
  --c-accent: #032c74;      /* couleur de marque */
  --c-accent-ink: #ffffff;  /* texte sur la couleur de marque */
  --c-line: #d3dbeb;        /* bordures */
  --c-dark: #032c74;        /* fond de la section contact */
  --c-on-dark: #ffffff;

  /* Polices (TODO : remplacer si vous avez les vôtres) */
  --f-display: "Bricolage Grotesque", system-ui, sans-serif;
  --f-body: "Instrument Sans", system-ui, sans-serif;

  --radius: 14px;
  --max: 1120px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

h1, h2, h3 {
  font-family: var(--f-display);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.6rem, 7vw, 5rem); font-weight: 800; }
h2 { font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 700; }
h3 { font-size: 1.35rem; font-weight: 700; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }

.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin: 0 0 1rem;
}

.lead { font-size: 1.15rem; color: var(--c-muted); max-width: 60ch; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--c-accent); color: var(--c-accent-ink); }
.btn-ghost { border: 1.5px solid var(--c-ink); }
.btn-ghost:hover { background: var(--c-ink); color: var(--c-bg); }

/* ---------- En-tête ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--c-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand img { height: 36px; width: auto; }

.nav { display: flex; align-items: center; gap: 1.8rem; }
.nav a { text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--c-accent); }

.lang-switch { display: flex; border: 1px solid var(--c-line); border-radius: 999px; padding: 3px; }
.lang-switch button {
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  cursor: pointer;
  color: var(--c-muted);
}
.lang-switch button[aria-pressed="true"] { background: var(--c-ink); color: var(--c-bg); }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  width: 40px;
  height: 40px;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 9px;
  right: 9px;
  height: 2px;
  background: var(--c-ink);
  transition: transform .2s ease, top .2s ease;
}
.nav-toggle span:first-child { top: 15px; }
.nav-toggle span:last-child { top: 23px; }
.nav-toggle[aria-expanded="true"] span:first-child { top: 19px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { top: 19px; transform: rotate(-45deg); }

/* ---------- Accueil ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(5rem, 12vw, 9rem) 0 clamp(6rem, 14vw, 11rem); }
.hero-inner { position: relative; z-index: 1; }
.hero h1 { max-width: 14ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2rem; }
.hero-mark {
  position: absolute;
  right: max(-6vw, -80px);
  top: 50%;
  transform: translateY(-50%);
  width: clamp(240px, 42vw, 560px);
  height: auto;
  opacity: 0.09;
  pointer-events: none;
  user-select: none;
}
@media (max-width: 860px) {
  .hero-mark { top: auto; bottom: -40px; transform: none; opacity: 0.07; }
}

/* ---------- Sections ---------- */
.section { padding: clamp(4rem, 9vw, 7rem) 0; }
.section-alt { background: var(--c-bg-alt); }

.mission-head { margin-bottom: 3rem; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.pillar { border-top: 2px solid var(--c-ink); padding-top: 1.25rem; }
.pillar-num { font-family: var(--f-display); font-weight: 700; color: var(--c-accent); }
.pillar h3 { margin-top: 0.4rem; }
.pillar p { color: var(--c-muted); margin: 0; }

/* ---------- Projets ---------- */
.projects { display: grid; grid-template-columns: minmax(0, 760px); gap: 1.25rem; margin-top: 2.5rem; }
.project { border-radius: var(--radius); padding: 2rem; }
.project-featured { background: var(--c-bg); border: 1px solid var(--c-line); }
.project-featured h3 { font-size: 2.2rem; margin: 0; }
.project-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.project-tag { color: var(--c-accent); font-weight: 600; margin: 0.3rem 0 1rem; }
.project-featured p:not(.project-tag) { color: var(--c-muted); }
.project-soon { border: 1.5px dashed var(--c-line); color: var(--c-muted); display: flex; flex-direction: column; justify-content: center; }
.project-soon h3 { color: var(--c-ink); }
.badge {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--c-accent) 14%, transparent);
  color: var(--c-accent);
}
.link-arrow { font-weight: 600; color: var(--c-accent); text-decoration: none; }
.link-arrow::after { content: " →"; }

/* ---------- Équipe ---------- */
.team { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 2.5rem; }
.member { border: 1px solid var(--c-line); border-radius: var(--radius); padding: 1.75rem; }
.avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--c-ink);
  color: var(--c-bg);
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
  overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.member h3 { margin-bottom: 0.2rem; }
.role { color: var(--c-muted); margin: 0 0 1rem; }
.member-link { font-weight: 600; font-size: 0.9rem; }

/* ---------- Contact ---------- */
.contact { background: var(--c-dark); color: var(--c-on-dark); }
.contact .lead { color: color-mix(in srgb, var(--c-on-dark) 75%, transparent); margin-bottom: 2rem; }
.contact .eyebrow { color: #9db7ea; }
.contact .btn-primary { background: #ffffff; color: var(--c-accent); }
.contact-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: end; }
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--c-on-dark) 18%, transparent);
}
.contact-list span { color: color-mix(in srgb, var(--c-on-dark) 60%, transparent); }
.stack { display: flex; flex-direction: column; align-items: flex-end; gap: 0.2rem; text-align: right; font-weight: 500; }
.stack a { text-decoration: none; }
.stack a:hover { text-decoration: underline; }
.socials { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: flex-end; }

/* ---------- Pied de page ---------- */
.site-footer { background: var(--c-dark); color: color-mix(in srgb, var(--c-on-dark) 60%, transparent); font-size: 0.9rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1.5rem; padding-bottom: 1.5rem; border-top: 1px solid color-mix(in srgb, var(--c-on-dark) 12%, transparent); }
.footer-inner { align-items: center; }
.footer-logo { height: 28px; width: auto; }
.footer-inner a { text-decoration: none; }
.footer-inner p { margin: 0; }

/* ---------- Animations d'apparition ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Mobile ---------- */
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.1rem;
    padding: 1.5rem 20px 2rem;
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-line);
    display: none;
  }
  .nav.is-open { display: flex; }
  .pillars, .team, .projects, .contact-inner { grid-template-columns: 1fr; }
  .contact-inner { align-items: start; }
  .contact-list li { flex-direction: column; gap: 0.2rem; }
  .socials { justify-content: flex-start; }
  .stack { align-items: flex-start; text-align: left; }
  .footer-inner { flex-direction: column; }
}