/* App-style fixed bottom tab bar (always visible on mobile & desktop) */
:root {
    --app-nav-height: 56px;
}

body.has-app-bottom-nav {
    padding-bottom: calc(var(--app-nav-height) + 12px + env(safe-area-inset-bottom, 0px));
}

.app-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9990;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: stretch;
    min-height: var(--app-nav-height);
    padding: 4px 4px calc(6px + env(safe-area-inset-bottom, 0px));
    background: rgba(255, 255, 255, 0.98);
    border-top: 1px solid var(--color-border, #e5e7eb);
    box-shadow: 0 -4px 24px rgba(15, 23, 42, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

html[data-theme="dark"] .app-bottom-nav {
    background: rgba(17, 24, 39, 0.98);
    border-top-color: var(--color-border, #1f2933);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.45);
}

.app-bottom-nav__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 4px 2px;
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--color-gray, #6b7280);
    text-align: center;
    border: none;
    background: none;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}

.app-bottom-nav__item i {
    font-size: 1.15rem;
    line-height: 1;
}

.app-bottom-nav__item.active,
.app-bottom-nav__item:active {
    color: var(--color-secondary, #d4af37);
}

.app-bottom-nav__item.active i {
    color: var(--color-secondary, #d4af37);
}

.brand-logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}