/* ── App layout & header ────────────────────────────── */
#app { max-width: 960px; margin: 0 auto; padding: 16px; }

header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}

.breadcrumbs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  align-items: center;
  flex: 1;
  min-width: 0;
}
.crumb {
  color: var(--accent);
  cursor: pointer;
  text-decoration: none;
  padding: 2px 4px;
  border-radius: 3px;
}
.crumb:hover { background: var(--hover); }
.crumb-search { cursor: default; color: var(--muted); font-style: italic; display: inline-flex; align-items: center; gap: 4px; }
.crumb-search svg { width: 14px; height: 14px; flex-shrink: 0; }
.crumb-search:hover { background: transparent; }
.crumb-sep { color: var(--muted); }

.actions { display: flex; gap: 8px; align-items: center; }
.actions button, .logout-link {
  padding: 4px 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  text-decoration: none;
  color: var(--fg);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.actions button:hover { background: var(--hover); }

/* Dark mode toggle */
.dark-mode-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  color: var(--fg);
  font-size: 16px;
  transition: background 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.dark-mode-toggle:hover {
  background: var(--hover);
  transform: scale(1.1);
}

/* Settings gear button */
.settings-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  color: var(--fg);
  transition: background 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.settings-btn:hover {
  background: var(--hover);
  transform: scale(1.1);
}

/* Drop overlay */
.drop-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(42, 109, 244, 0.15);
  border: 4px dashed var(--accent);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--accent);
  pointer-events: none;
}
.drop-overlay.active { display: flex; }