/* Header partage par toutes les pages (brainstorm Jerome 13/09/2026 :
   "la barre header peut etre identique sur TOUS la navigation" - avant
   cette extraction, chaque page dupliquait sa propre copie du header,
   d'ou les incoherences repetees corrigees une a une ce soir (police,
   position du logo, reseaux sociaux, liens Tarifs/A propos...).

   Repose sur un jeu de variables CSS standard que CHAQUE page doit
   definir dans son propre :root (et :root[data-theme="light"]) :
     --bg --surface --header --text-rgb --text --border --blue
   Ce sont exactement les tokens deja utilises par hub.html/prematch.html/
   index.html/break-draw.html/first-half.html - account.html, choose-plan.html
   et landing.html (a-propos) les ont recus en plus pour que ce fichier
   s'applique correctement partout (voir CLAUDE.md / commentaires dans
   chacun de ces 3 fichiers pour le detail de ce qui reste hors perimetre :
   le corps de page de ces 3-la n'est pas repeint en theme clair, seul le
   header l'est - un chantier plus large, separe de cette demande).
*/
header, #app-header {
  background: var(--header);
  border-bottom: 0.5px solid var(--border);
  padding: 6px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-left { display: flex; align-items: center; gap: 20px; }
.header-right { display: flex; align-items: center; gap: 10px; }

.logo { font-size: 20px; font-weight: 700; display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
.logo-aura { width: 50px; height: 50px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, rgba(100,160,255,0.1) 40%, transparent 70%); display: flex; align-items: center; justify-content: center; filter: drop-shadow(0 0 15px rgba(150,200,255,0.9)); flex-shrink: 0; }
.logo-aura img { width: 40px; height: 40px; object-fit: contain; }

.nav-follow-group { display: flex; align-items: center; gap: 10px; }
.nav-follow-label { font-size: 12px; color: rgba(var(--text-rgb),0.6); font-weight: 700; white-space: nowrap; }
.nav-social { display: flex; align-items: center; gap: 6px; }
.nav-social a { width: 28px; height: 28px; border-radius: 7px; background: rgba(59,130,246,0.15); border: 0.5px solid rgba(59,130,246,0.35); display: flex; align-items: center; justify-content: center; color: var(--blue); transition: background .15s; }
.nav-social a:hover { background: rgba(59,130,246,0.28); }
.nav-social svg { width: 14px; height: 14px; }

.nav-results { font-size: 13px; font-weight: 600; color: rgba(var(--text-rgb),0.6); text-decoration: none; display: flex; align-items: center; gap: 5px; white-space: nowrap; }
.nav-results:hover { color: var(--text); }

.theme-toggle { display: flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 50%; border: 1.5px solid rgba(var(--text-rgb),0.2); background: transparent; cursor: pointer; font-size: 15px; flex-shrink: 0; }
.lang-toggle { display: flex; gap: 4px; background: rgba(var(--text-rgb),0.05); border: 0.5px solid var(--border); border-radius: 20px; padding: 3px; }
.lang-btn { border: none; background: transparent; color: rgba(var(--text-rgb),0.5); font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 16px; cursor: pointer; letter-spacing: 0.3px; }
.lang-btn.active { background: var(--blue); color: #fff; }
.login-link { font-size: 13px; color: var(--blue); text-decoration: none; font-weight: 700; white-space: nowrap; }

.plan-badge { display: flex; align-items: center; gap: 6px; padding: 7px 16px; border-radius: 30px; font-size: 12px; font-weight: 700; white-space: nowrap; border: none; }
.plan-badge.linked { background: rgba(74,222,128,0.15); color: #4ade80; border: 0.5px solid rgba(74,222,128,0.3); }
.plan-badge.unlinked { background: transparent; color: var(--text); border: 1.5px solid rgba(var(--text-rgb),0.25); cursor: pointer; transition: border-color .2s; }
.plan-badge.unlinked:hover { border-color: rgba(var(--text-rgb),0.5); }

.avatar-wrap { position: relative; }
.avatar-btn { display: flex; align-items: center; gap: 8px; padding: 8px 16px; border: 1.5px solid rgba(var(--text-rgb),0.2); border-radius: 30px; background: transparent; cursor: pointer; color: var(--text); font-size: 13px; font-weight: 600; transition: border-color .2s; white-space: nowrap; }
.avatar-btn:hover { border-color: rgba(var(--text-rgb),0.5); }
.avatar-chevron { font-size: 10px; opacity: 0.5; margin-left: 2px; }
.dropdown { position: absolute; top: calc(100% + 8px); right: 0; background: var(--surface); border: 0.5px solid rgba(var(--text-rgb),0.15); border-radius: 12px; padding: 8px; min-width: 190px; z-index: 100; display: none; box-shadow: 0 8px 24px rgba(0,0,0,0.18); }
.dropdown.open { display: block; }
.dropdown-user { padding: 8px 10px 10px; border-bottom: 0.5px solid rgba(var(--text-rgb),0.1); margin-bottom: 6px; }
.dropdown-username { font-size: 14px; font-weight: 700; color: var(--text); }
.dropdown-plan { font-size: 11px; color: rgba(var(--text-rgb),0.45); margin-top: 2px; }
.dropdown-item { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 8px; font-size: 13px; font-weight: 600; color: #f87171; cursor: pointer; transition: background .15s; }
.dropdown-item:hover { background: rgba(var(--text-rgb),0.06); }
.dropdown-item.neutral { color: var(--text); }

@media (max-width: 768px) { .nav-follow-group, .nav-results { display: none; } }