/* css/bottom-nav.css — persistent glass bottom nav: Lixa | Workspace */

:root {
  --bottom-nav-h: calc(60px + env(safe-area-inset-bottom));
}

body.has-bottom-nav {
  padding-bottom: var(--bottom-nav-h);
}

/* The class selector below beats the UA [hidden] default (author styles
   always win over UA styles regardless of source order), so nav.hidden alone
   wouldn't actually hide it — this reasserts it explicitly. */
.app-bottom-nav[hidden] { display: none !important; }

.back-btn[hidden] { display: none !important; }

.app-bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 900;
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  height: var(--bottom-nav-h);
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-light);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.06);
}

.app-bottom-nav-inner {
  width: 100%;
  max-width: 480px;
  display: flex;
  align-items: stretch;
}

.bottom-nav-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  text-decoration: none;
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.4rem 0.5rem;
  transition: color 0.2s ease;
  position: relative;
}

.bottom-nav-tab svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  transition: transform 0.2s ease;
}

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

.bottom-nav-tab.active {
  color: var(--accent);
}

.bottom-nav-tab.active svg {
  transform: translateY(-1px);
}

.bottom-nav-tab.active::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--accent);
}

[data-theme="dark"] .app-bottom-nav {
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.35);
}