/* BRIEF #87 Sprint B — Bibliothèque visuelle de sections (drawer) */

.osl-backdrop {
  position: fixed; inset: 0; background: rgba(15, 23, 42, .45);
  opacity: 0; pointer-events: none; transition: opacity .2s ease; z-index: 4000;
}
.osl-drawer {
  position: fixed; top: 0; right: 0; height: 100%; width: 380px; max-width: 92vw;
  background: var(--color-bg-card, #fff); color: var(--color-text, #111827);
  box-shadow: -8px 0 28px rgba(0, 0, 0, .18);
  transform: translateX(100%); transition: transform .25s cubic-bezier(.4, 0, .2, 1);
  z-index: 4001; display: flex; flex-direction: column;
}
.osl-drawer.osl-open { transform: translateX(0); }
.osl-drawer.osl-open ~ .osl-backdrop, .osl-backdrop.osl-show { opacity: 1; pointer-events: auto; }
/* le backdrop est inséré après le drawer ; on l'active via la classe open du drawer */
.osl-drawer.osl-open + .osl-backdrop { opacity: 1; pointer-events: auto; }
body.osl-no-scroll { overflow: hidden; }

.osl-head {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 16px; border-bottom: 1px solid var(--color-border, #e5e7eb);
}
.osl-title { font-weight: 700; font-size: 15px; flex: 1; }
.osl-close {
  background: none; border: none; cursor: pointer; font-size: 16px;
  color: var(--color-text-muted, #6b7280); padding: 4px 8px; border-radius: 6px;
}
.osl-close:hover { background: var(--color-bg-soft, #f3f4f6); }

.osl-search { padding: 10px 14px 6px; }
.osl-q {
  width: 100%; box-sizing: border-box; padding: 8px 10px; font-size: 13px;
  border: 1px solid var(--color-border, #d1d5db); border-radius: 8px;
  background: var(--color-bg, #fff); color: inherit;
}

.osl-filters { display: flex; flex-wrap: wrap; gap: 6px; padding: 4px 14px 10px; }
.osl-pill {
  border: 1px solid var(--color-border, #d1d5db); background: var(--color-bg-soft, #f8fafc);
  color: var(--color-text-muted, #475569); border-radius: 999px;
  padding: 4px 10px; font-size: 12px; cursor: pointer; white-space: nowrap;
}
.osl-pill-on {
  background: var(--color-primary, #2563eb); color: #fff; border-color: var(--color-primary, #2563eb);
}
.osl-pill-n { opacity: .7; font-size: 11px; }

.osl-body { flex: 1; overflow-y: auto; padding: 6px 14px 24px; }
.osl-empty { color: var(--color-text-muted, #9ca3af); font-size: 13px; padding: 24px 6px; text-align: center; line-height: 1.5; }

.osl-group-head {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
  color: var(--color-text-muted, #94a3b8); margin: 14px 2px 6px;
}
.osl-cards { display: flex; flex-direction: column; gap: 10px; }

.osl-card {
  border: 1px solid var(--color-border, #e5e7eb); border-radius: 10px;
  background: var(--color-bg, #fff); padding: 10px 12px;
  transition: box-shadow .15s ease, border-color .15s ease;
}
.osl-card:hover { box-shadow: 0 2px 10px rgba(0, 0, 0, .08); border-color: var(--color-primary, #93c5fd); }
.osl-card-top { display: flex; align-items: flex-start; gap: 6px; }
.osl-card-title { font-weight: 600; font-size: 13px; flex: 1; line-height: 1.3; }
.osl-card-actions { display: flex; gap: 2px; }
.osl-mini {
  background: none; border: none; cursor: pointer; font-size: 12px; padding: 2px 4px;
  border-radius: 5px; opacity: .65;
}
.osl-mini:hover { opacity: 1; background: var(--color-bg-soft, #f3f4f6); }
.osl-card-thumb {
  font-size: 11.5px; color: var(--color-text-muted, #6b7280); line-height: 1.45;
  margin: 6px 0 8px; max-height: 52px; overflow: hidden;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
}
.osl-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.osl-card-badge {
  font-size: 11px; color: var(--color-text-muted, #94a3b8);
  background: var(--color-bg-soft, #f1f5f9); border-radius: 6px; padding: 2px 7px;
}
.osl-add {
  border: 1px solid var(--color-primary, #2563eb); color: var(--color-primary, #2563eb);
  background: var(--color-primary-soft, #eff6ff); border-radius: 7px;
  padding: 4px 10px; font-size: 12px; font-weight: 600; cursor: pointer;
}
.osl-add:hover { background: var(--color-primary, #2563eb); color: #fff; }
.osl-add:disabled { opacity: .6; cursor: default; }

.osl-toast {
  position: fixed; bottom: 24px; left: 50%; transform: translate(-50%, 12px);
  background: #111827; color: #fff; padding: 9px 16px; border-radius: 8px;
  font-size: 13px; z-index: 5000; opacity: 0; transition: opacity .25s, transform .25s;
}
.osl-toast-show { opacity: 1; transform: translate(-50%, 0); }

/* Dark mode */
body.dark .osl-drawer { background: #1e293b; color: #e2e8f0; }
body.dark .osl-q { background: #0f172a; border-color: #334155; }
body.dark .osl-card { background: #0f172a; border-color: #334155; }
body.dark .osl-pill { background: #0f172a; border-color: #334155; color: #cbd5e1; }
body.dark .osl-card-badge { background: #1e293b; }
body.dark .osl-add { background: rgba(37, 99, 235, .15); }

/* Mobile : drawer plein écran */
@media (max-width: 640px) {
  .osl-drawer { width: 100%; max-width: 100%; }
}