/* =========================================================
   Base — structure commune à toutes les pages.
   Les couleurs/ambiances sont définies via des variables CSS
   surchargées par chaque thème (themes/<theme>.css).
   ========================================================= */

:root {
  --bg:        #0f1923;
  --bg-accent: #15212e;
  --panel:     #1b2836;
  --text:      #eef2f6;
  --muted:     #9fb0c0;
  --accent:    #ff4655;
  --accent-2:  #ffb347;
  --radius:    14px;
  --font:      "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --display:   var(--font);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 50% -10%, var(--bg-accent), transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  display: flex;
  flex-direction: column;
}

/* ---------- Barre du haut ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px clamp(16px, 4vw, 48px);
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.brand {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-decoration: none;
  color: var(--text);
}
.brand::before { content: "💛 "; }

.menu {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* Le formulaire ne doit pas casser la mise en page : ses enfants participent
   directement au flex de la barre du haut. */
.logout-form { display: contents; }

/* Groupe d'actions à droite de la barre (lien « Gérer » + déconnexion). */
.topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.topbar-actions .logout { margin-left: 0; }

/* Petit bouton « fantôme » (lien Gérer / Voir le site). */
.ghost-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--muted);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 7px 13px;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
}
.ghost-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent);
}

/* Bouton de déconnexion, poussé à droite de la barre */
.logout {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  color: var(--muted);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 7px 13px;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
}
.logout:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent);
}

.menu-group { position: relative; }

.menu-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: inherit;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 8px 14px;
  cursor: pointer;
  transition: background 0.18s, border-color 0.18s;
}
.menu-trigger:hover,
.menu-group.active .menu-trigger {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}
.menu-group.active .menu-trigger { color: var(--accent); }

.caret { font-size: 0.7em; opacity: 0.8; transition: transform 0.18s; }
.menu-group.open .caret { transform: rotate(180deg); }

.dropdown {
  list-style: none;
  margin: 8px 0 0;
  padding: 6px;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 160px;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.16s, transform 0.16s, visibility 0.16s;
}
/* Ouverture au survol (desktop) et au clic (mobile, via .open) */
.menu-group:hover .dropdown,
.menu-group.open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: background 0.15s;
}
.dropdown a:hover { background: rgba(255, 255, 255, 0.08); }
.dropdown a.is-current {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 700;
}

/* ---------- Scène principale ---------- */
.stage {
  flex: 1;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: clamp(20px, 4vw, 44px) clamp(16px, 4vw, 32px) 60px;
}

.stage-head { text-align: center; margin-bottom: 26px; }
.stage-head h1 {
  font-family: var(--display);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  margin: 0;
  letter-spacing: 0.5px;
}
.subtitle {
  margin: 8px 0 0;
  color: var(--accent-2);
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  font-weight: 600;
}

/* ---------- Onglets de sélection des vidéos ---------- */
.video-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}
.video-tab {
  font: inherit;
  font-weight: 600;
  color: var(--text);
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 9px 20px;
  cursor: pointer;
  transition: all 0.18s;
}
.video-tab:hover { border-color: var(--accent); }
.video-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---------- Lecteur ---------- */
.player-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.video-js { width: 100%; height: auto; }

/* ---------- Actions ---------- */
.actions {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 12px 28px;
  transition: all 0.18s;
}
.btn-download:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-1px);
}
.dl-icon { font-size: 1.2em; }

/* ---------- Section vide ---------- */
.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
  font-size: 1.2rem;
  background: var(--panel);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
}

/* ---------- Pied de page ---------- */
.site-footer {
  text-align: center;
  padding: 22px;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

@media (max-width: 600px) {
  .topbar { flex-wrap: wrap; gap: 12px; }
  /* Ligne 1 : marque + actions ; ligne 2 : le menu, sur toute la largeur. */
  .brand          { order: 1; }
  .topbar-actions { order: 2; }
  .menu           { order: 3; flex: 1 1 100%; justify-content: center; }
}