/* ═══════════════════════════════════════════════════════
   ASISTEN MUBALIGH — Bottom Navigation Bar (Mobile)
   Theme: Dark Blue + Silver Metallic
   ═══════════════════════════════════════════════════════ */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, #37474f 0%, #212121 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0.5rem 0.5rem;
    padding-bottom: max(0.5rem, env(safe-area-inset-bottom));
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.8);
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.4rem 1rem;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
    color: #78909c;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    -webkit-user-select: none;
    min-width: 60px;
    position: relative;
}

.bottom-nav-item .nav-icon {
    font-size: 1.3rem;
    transition: all 0.25s ease;
    line-height: 1;
}

.bottom-nav-item .nav-label {
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.25s ease;
}

.bottom-nav-item.active {
    color: #f4ede4;
}

.bottom-nav-item.active::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: linear-gradient(135deg, #b0bec5 0%, #ffffff 55%, #90a4ae 100%);
    border-radius: 0 0 3px 3px;
}

.bottom-nav-item.active .nav-icon {
    transform: scale(1.1);
}

.bottom-nav-item:active {
    background: rgba(255, 255, 255, 0.05);
    transform: scale(0.95);
}

/* Hide bottom nav on larger screens */
@media (min-width: 768px) {
    .bottom-nav {
        display: none;
    }
}