/* ============================================================
   NAV + HERO — nav-hero.css
   Akpoué Kouamé Josué — Site académique
   ============================================================ */

/* ============================================================
   NAVIGATION
   ============================================================ */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: var(--bg);
  border-bottom: var(--border-thin) transparent;
  transition:
    background-color var(--transition-mid),
    border-color var(--transition-mid),
    box-shadow var(--transition-mid);
}

/* Ombre discrète au scroll */
.site-nav.nav--scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-lg);
}

/* --- Logo / monogramme --- */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text);
  font-family: var(--font-interface);
  font-weight: 500;
  font-size: var(--text-sm);
  letter-spacing: 0.01em;
  flex-shrink: 0;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-logo__svg {
  width: 36px;
  height: 36px;
  color: var(--accent);
  border: var(--border-thin) var(--accent);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.nav-logo__name {
  font-size: var(--text-sm);
  color: var(--text);
}

/* --- Liens de navigation --- */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
}

.nav-link {
  font-family: var(--font-interface);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--text-muted);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
  color: var(--text);
  background-color: var(--bg-alt);
}

.nav-link.active {
  color: var(--accent);
  font-weight: 500;
}

/* Lien CTA "Collaborer" */
.nav-link--cta {
  color: var(--accent);
  font-weight: 500;
  border: var(--border-thin) var(--accent);
  padding: calc(var(--space-xs) - 1px) var(--space-md);
}

.nav-link--cta:hover {
  background-color: var(--accent);
  color: var(--accent-on);
}

/* --- Actions : toggle + burger --- */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* Toggle dark mode */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--text);
  background-color: var(--bg-alt);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

/* Affichage conditionnel des icônes soleil/lune */
[data-theme="light"] .icon-moon { display: none; }
[data-theme="dark"]  .icon-sun  { display: none; }

/* Burger mobile */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  width: 36px;
  height: 36px;
  padding: 6px;
}

.nav-burger span {
  display: block;
  height: 2px;
  background-color: var(--text);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  padding: var(--space-3xl) 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-3xl);
  align-items: center;
}

/* --- Colonne texte --- */
.hero-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.hero-discipline {
  font-family: var(--font-interface);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-name {
  font-family: var(--font-content);
  font-size: var(--text-3xl);
  font-weight: 400;
  line-height: 1.1;
  color: var(--text);
  letter-spacing: -0.01em;
}

.hero-name em {
  font-style: italic;
  color: var(--text-muted);
}

.hero-statement {
  font-family: var(--font-content);
  font-size: var(--text-md);
  line-height: 1.75;
  color: var(--text);
  max-width: 52ch;
}

/* --- Profils externes --- */
.hero-profiles {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

.profile-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-interface);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  padding: 4px 12px 4px 8px;
  border: var(--border-thin) var(--border);
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.profile-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background-color: var(--color-canard-pale);
}

.profile-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* --- Boutons hero --- */
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  margin-top: var(--space-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-interface);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn--primary {
  background-color: var(--accent);
  color: var(--accent-on);
  border: 2px solid var(--accent);
}

.btn--primary:hover {
  background-color: var(--color-canard-light);
  border-color: var(--color-canard-light);
  color: var(--accent-on);
  box-shadow: var(--shadow-md);
}

.btn--ghost {
  background-color: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}

.btn--ghost:hover {
  border-color: var(--text);
  color: var(--text);
}

/* --- Colonne photo --- */
.hero-photo {
  position: relative;
  flex-shrink: 0;
}

.hero-photo__frame {
  width: 260px;
  height: 260px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-lg);
}

.hero-photo__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(8%);
  transition: filter var(--transition-slow);
}

.hero-photo__frame:hover img {
  filter: grayscale(0%);
}

/* Élément décoratif : carré canard décalé */
.hero-photo__deco {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 12px;
  left: 12px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--accent);
  opacity: 0.35;
  z-index: 0;
  transition: opacity var(--transition-mid);
}

.hero-photo:hover .hero-photo__deco {
  opacity: 0.6;
  top: 14px;
  left: 14px;
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  margin-top: var(--space-3xl);
  border-top: var(--border-thin) var(--border);
  padding: var(--space-xl) 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-copy {
  font-family: var(--font-interface);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.footer-links a {
  font-family: var(--font-interface);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
  /* Nav mobile */
  .nav-logo__name {
    display: none;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--bg);
    border-bottom: var(--border-thin) var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-md);
    gap: var(--space-xs);
    box-shadow: var(--shadow-md);
  }

  .nav-links--open {
    display: flex;
  }

  .nav-link {
    padding: var(--space-md);
    text-align: left;
    font-size: var(--text-base);
  }

  .nav-burger {
    display: flex;
  }

  /* Hero mobile */
  .hero {
    padding: var(--space-2xl) 0;
    min-height: unset;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    gap: var(--space-xl);
  }

  /* Photo avant texte sur mobile */
  .hero-photo {
    order: -1;
    justify-self: center;
  }

  .hero-photo__frame {
    width: 180px;
    height: 180px;
  }

  .hero-name {
    font-size: var(--text-2xl);
  }

  .hero-statement {
    font-size: var(--text-base);
  }

  /* Footer mobile */
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-lg);
  }

  .hero-name {
    font-size: var(--text-xl);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }
}

/* ============================================================
   PRINT — hero simplifié
   ============================================================ */

@media print {
  .hero {
    min-height: unset;
    padding: var(--space-xl) 0;
  }

  .hero-inner {
    grid-template-columns: 1fr auto;
    gap: var(--space-xl);
  }

  .hero-photo__frame {
    width: 120px;
    height: 120px;
  }

  .hero-photo__deco {
    display: none;
  }

  .hero-name {
    font-size: 28pt;
  }

  .hero-discipline {
    font-size: 9pt;
  }

  .hero-statement {
    font-size: 11pt;
  }

  .hero-profiles,
  .hero-actions {
    display: none;
  }
}


/* ============================================================
   SÉLECTEUR DE LANGUE EN | FR
   ============================================================
   Placé dans nav-actions, entre le toggle dark mode et le burger.
   La langue active est affichée en canard, l'autre en muted.
   ============================================================ */

.lang-switch {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-interface);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
}

.lang-btn {
  color: var(--text-muted);
  text-decoration: none;
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
  text-transform: uppercase;
}

.lang-btn:hover {
  color: var(--text);
}

/* Langue active — canard, non cliquable */
.lang-btn--active {
  color: var(--accent);
  cursor: default;
  pointer-events: none;
}

.lang-sep {
  color: var(--border);
  user-select: none;
}