:root {
  --bar-h: 56px;
}

.app-bar {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: var(--bar-h);
  padding: 0 18px;
  background: var(--nav);
  border-bottom: 1px solid var(--line);
}

.app-brand {
  margin: 0;
  font-family: "Cinzel", serif;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold);
  white-space: nowrap;
}

#app-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: rgba(212, 175, 55, 0.08);
  border: 1px solid var(--line);
  border-radius: 10px;
}

#app-nav a {
  text-decoration: none;
}

#app-nav [data-view] {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}

#app-nav [data-view]:hover {
  color: var(--ink);
  background: rgba(212, 175, 55, 0.12);
}

#app-nav [data-view].is-on {
  background: var(--gold);
  color: var(--btn-on-ink);
}

#prefs-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

#prefs-bar button,
.verse-nav button {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  min-width: 36px;
  height: 34px;
  padding: 0 10px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.78rem;
}

#prefs-bar button:hover,
.verse-nav button:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.verse-nav button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.verse-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

@media (max-width: 720px) {
  :root {
    --bar-h: 48px;
  }

  .app-bar {
    padding: 0 12px;
    gap: 10px;
  }

  .app-brand {
    font-size: 0.78rem;
    letter-spacing: 0.04em;
  }

  #app-nav {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    z-index: 210;
    justify-content: space-between;
    padding: 5px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28);
    background: var(--nav);
  }

  #app-nav [data-view] {
    flex: 1;
    text-align: center;
    padding: 10px 6px;
    font-size: 0.78rem;
  }

  body {
    padding-bottom: calc(72px + env(safe-area-inset-bottom));
  }
}